Spiral conveyor is welded in a cylindrical enclosure with a continuous helical blade , rotate the housing with the spiral blades. Was added and the friction material due to centrifugal force effects and lifted random rotation with the shell , and the helical surface materialZM plastic chain conveyor falling under gravity , the coil is rotated together with the material to achieve the forward movement of the material , as does not rotate screw nut for rotation along the translational motion as to achieve the purpose of transportation of materials.
The machine low energy consumption, low maintenance costs ; ends when feeding, can adapt to uneven feed requirements, simultaneously mixing and other transport process requirements , it does not produce jamming phenomenon materials into too much ; facilitate multi- loading and unloading point , the material can be transported at higher temperatures . Suitable for horizontal conveying high temperature materials ; against high temperature , feeding uneven , with anti- crushing requirements, pollution prevention requirements of materials and need to add multi-point discharge process has better adaptability . Practice has proved that , at the time of delivery of cement ZM belt conveyor manufacturerclinker , dry limestone, phosphate rock , ilmenite powder, coal and slag and other materials to good effect.
The end portion of the material feed opening , having a particle size not greater than the diameter of the coil of 1/4 ; intermediate the inlet from the feed material , the average particle size of not more than 30 mm . To ensure the barrel distortion is not generated , the feed temperature must be controlled below 300 ℃. The aircraft in the transportation of abrasive material on the blade and a large trough wear extremely serious. The screw conveyor is designed primarily with the delivery of its abrasive silica therefore appropriate to adopt a large spiral conveyor.
Incline Belt conveyor
Incline Belt conveyor
2014年3月21日星期五
2014年3月12日星期三
ZM food conveyor The metal detector sensitivity adjustment
The metal detector sensitivity adjustment:1 if the detection distance is not up to the requirements or high sensitivity and even cause instability or no metal probe scan also sound or vibration ZM air to water heat exchanger on the human body, should adjust thesensitivity.2 the sound, vibration switch (10) on the "free" state, with a smallThe word screwdriver from the small hole detector on the handle is extended in a clockwise rotation, adjustmentTo ZM plastic chain conveyor sound, then counterclockwise rotation to just don't sound after the counterclockwise rotation of a semi circle, to meet the requirements so far sensitivity.
2014年1月1日星期三
Automatic elevators mechanical system consists of
Automatic elevators mechanical system consists of:Automatic elevators lift mechanical system consists of inlet and outlet transmission mechanism,the car transmission mechanism inside the basket,Cab lifting mechanism, elevator hoistway door safety security agencies and liftingTelescopic belt conveyor motor holding brake body composition. Elevator entrance and exit transmission mechanism for the production line of products sent outside the elevator or lift to. The car inside the gondola transport mechanism for incoming or outgoing product cab. Cab lifting mechanism for lifting the elevator airport conveyor car or down the elevator car. Elevator hoistway door safety mechanism for lifting the elevator car during the closed elevator shaft entrance hall doors to prevent accidents. Lifting motor safety brake mechanism for clinging to lift the elevator car when the motor spindle stop motion to prevent the occurrence of sliding up and down the elevator car at the time of stop motion, to avoid accidents arising therefrom.
2013年12月9日星期一
Selection of food conveyor lubricants and additives
1 . Ensure the quality of assembly . Can be purchased or homemade when some special tools, gear parts removal and installation , try to avoid tapping with a hammer and other
tools ; replace the gear , when worm , heat exchange manufacturers try to use original parts and replace in pairs ; assembly output shaft , pay attention tolerances
; Difficult to use when dismantling anti-adhesive or red lead oil to protect the hollow shaft , with the area to prevent rust or wear debris, repair.
2 . Lubricants and optional additives . Worm air to water heat exchanger gear reducer 220 # gear oil is generally used for heavy-duty , start frequently, poor environment reducer, can use some lubricant
additives, so that when you stop running gear gear oil is still attached to the gear surface, forming Paul
Protective film to prevent direct contact between the metal heavy load , low speed , high torque and starts. Additives containing modifiers and anti- leak seal agent , so seals
remain soft and flexible, reduce oil leakage.
3 . Select reducer installed. Lower position allows, try not to use vertical installation . When installed vertically , install a lot more than the level of the amount of oil
added , could easily lead to fever reducer and oil spills.
4 . Establish lubrication maintenance system. According lubrication "five " principles of gear maintenance , so that each person has a responsibility gear regularly checked and
found significant temperature exceeds 40 ℃ or oil temperature exceeds 80 ℃, the quality of the oil or oil drops copper is found in more
When and generate abnormal noise and other phenomena, to immediately stop the use , timely maintenance , troubleshooting , replacement of oil . When refueling , pay attention to
the amount of oil , to ensure correct gear lubrication .
tools ; replace the gear , when worm , heat exchange manufacturers try to use original parts and replace in pairs ; assembly output shaft , pay attention tolerances
; Difficult to use when dismantling anti-adhesive or red lead oil to protect the hollow shaft , with the area to prevent rust or wear debris, repair.
2 . Lubricants and optional additives . Worm air to water heat exchanger gear reducer 220 # gear oil is generally used for heavy-duty , start frequently, poor environment reducer, can use some lubricant
additives, so that when you stop running gear gear oil is still attached to the gear surface, forming Paul
Protective film to prevent direct contact between the metal heavy load , low speed , high torque and starts. Additives containing modifiers and anti- leak seal agent , so seals
remain soft and flexible, reduce oil leakage.
3 . Select reducer installed. Lower position allows, try not to use vertical installation . When installed vertically , install a lot more than the level of the amount of oil
added , could easily lead to fever reducer and oil spills.
4 . Establish lubrication maintenance system. According lubrication "five " principles of gear maintenance , so that each person has a responsibility gear regularly checked and
found significant temperature exceeds 40 ℃ or oil temperature exceeds 80 ℃, the quality of the oil or oil drops copper is found in more
When and generate abnormal noise and other phenomena, to immediately stop the use , timely maintenance , troubleshooting , replacement of oil . When refueling , pay attention to
the amount of oil , to ensure correct gear lubrication .
2013年12月3日星期二
Conveyor classification
Cushion belt conveyor
The hovercraft cushion belt conveyor , conveyor transplanted to the hovercraft principle , the use of continuous flow beneath the conveyor belt to form a stable cushion layer
becomes hard friction roller rolling soft belt conveyor design fluid friction , which reduces the friction , and old-fashioned delivery machine compared with less investment, consumption
Can province , carrying capacity, smooth operation , less easy to seal contamination , and low maintenance costs , can significantly improve productivity, reduce production
costs, economic and social benefits are very impressive.
Cushion belt conveyor is widely used in ports , mining, food and other industries.
Tubular belt conveyor
Overview: tubular conveyor belt conveyor manufacturer suitable for transporting a variety of complex terrain conditions for a variety of bulk materials 0-2.5t/m3 density , using ordinary tubular tape
Operating ambient temperature range -25 ~ +40 ℃; tubular belt typical material conveyors are: ore , coal coke,
Limestone, gravel, shale and alluvial soil .
Uses: tubular belt conveyor is widely used in electricity, building materials, chemicals , mining, metallurgy , port, harbor , coal, grain and other industry material handling
systems .
The hovercraft cushion belt conveyor , conveyor transplanted to the hovercraft principle , the use of continuous flow beneath the conveyor belt to form a stable cushion layer
becomes hard friction roller rolling soft belt conveyor design fluid friction , which reduces the friction , and old-fashioned delivery machine compared with less investment, consumption
Can province , carrying capacity, smooth operation , less easy to seal contamination , and low maintenance costs , can significantly improve productivity, reduce production
costs, economic and social benefits are very impressive.
Cushion belt conveyor is widely used in ports , mining, food and other industries.
Tubular belt conveyor
Overview: tubular conveyor belt conveyor manufacturer suitable for transporting a variety of complex terrain conditions for a variety of bulk materials 0-2.5t/m3 density , using ordinary tubular tape
Operating ambient temperature range -25 ~ +40 ℃; tubular belt typical material conveyors are: ore , coal coke,
Limestone, gravel, shale and alluvial soil .
Uses: tubular belt conveyor is widely used in electricity, building materials, chemicals , mining, metallurgy , port, harbor , coal, grain and other industry material handling
systems .
2013年11月21日星期四
Brief overview of the belt conveyor installation
1 , connect the rack legs
2 , the annular Flat belt conveyor belt set into the side of the rack
4 , mounted on the carrier and upper roller
5, the correction of the belt into the ring set into the upper plate and the upper roller
6 , mounted on the inside of the Incline Belt conveyor endless belt drive roller
7 , the belt driven roller installed outside of the driving roller in an S -type .
8 , mounted on motor frame
9 , the motor is fixed to the motor frame , and fitted with sprocket and chain 10 attached to the lower roller
10 , electrical wiring and electrical control box wiring
11 , the fixed rack bolt 12 , so that the whole rack adjustable cup feet horizontally
12 , start running
13 , according to adjust the degree of deviation corresponding parts
2 , the annular Flat belt conveyor belt set into the side of the rack
4 , mounted on the carrier and upper roller
5, the correction of the belt into the ring set into the upper plate and the upper roller
6 , mounted on the inside of the Incline Belt conveyor endless belt drive roller
7 , the belt driven roller installed outside of the driving roller in an S -type .
8 , mounted on motor frame
9 , the motor is fixed to the motor frame , and fitted with sprocket and chain 10 attached to the lower roller
10 , electrical wiring and electrical control box wiring
11 , the fixed rack bolt 12 , so that the whole rack adjustable cup feet horizontally
12 , start running
13 , according to adjust the degree of deviation corresponding parts
2013年11月20日星期三
Construction machinery from manufacturing to innovation
China 's construction machinery industry did not rely on the garment industry to seek large-scale OEM production of their own development , but also did not rely on the
automotive industry in gravity skatewheel conveyor general as a joint venture to enhance their own strength , but rather out of a technology introduction, digestion, absorption and innovation on the road ,
and gradually mastered its own
Initiative , which for other industries also have a strong reference.
From manufacturing to "wisdom" made
Investment Advisor in the machinery industry researcher Duan Jiaxuan that the development of China's Pipe conveyor construction machinery from the historical point of view , totally dependent
on foreign capital is no future , even in the strength of the gradual growth of today, although there is a large gap between the foreign advanced technology , but also cut Do
not be so anxious to achieve
OEM technology upgrading and took the road to better have strong strength in the time base through mergers and acquisitions , learning and innovation , etc., to absorb
technology, adhere to the road of self-development .
Innovation into the industry rapid development momentum
After 20 years of development, China 's construction machinery industry strength has improved significantly , but in the advanced foreign technology and there is a large gap. If
you embark on the road of OEM production , although you can change in the short term more advanced foreign technology, but the loss of self- brand development .
The lack of independent brands , will be tightly nailed to the low end of the value chain , always walk on the road in low value-added .
Investment Advisor in the Research Director Zhang Yan Lin said that at present , multinational companies to enter the Chinese way of being quietly changed, from the past use of
China's low manufacturing costs , preferential policies to enhance competitiveness factors , leading to the acquisition of a number of Chinese enterprises, OEM cross
Country 's products , and use Chinese company's marketing network and manufacturing capabilities to become a part of its global industrial chain .
Gradually mastered their own initiative
If Chinese enterprises in order to seek quick access to advanced technology and become part of transnational global industrial chain practices often faced with great risk,
although the short term production may increase rapidly, but in key areas , high value-added parts will always be foreign controlled, and
The right to sell and purchase the right one was firmly in control , making it convenient for a profit transfer , in the process , but also Chinese enterprises can only act as a
manufacturing plant 's role only.
automotive industry in gravity skatewheel conveyor general as a joint venture to enhance their own strength , but rather out of a technology introduction, digestion, absorption and innovation on the road ,
and gradually mastered its own
Initiative , which for other industries also have a strong reference.
From manufacturing to "wisdom" made
Investment Advisor in the machinery industry researcher Duan Jiaxuan that the development of China's Pipe conveyor construction machinery from the historical point of view , totally dependent
on foreign capital is no future , even in the strength of the gradual growth of today, although there is a large gap between the foreign advanced technology , but also cut Do
not be so anxious to achieve
OEM technology upgrading and took the road to better have strong strength in the time base through mergers and acquisitions , learning and innovation , etc., to absorb
technology, adhere to the road of self-development .
Innovation into the industry rapid development momentum
After 20 years of development, China 's construction machinery industry strength has improved significantly , but in the advanced foreign technology and there is a large gap. If
you embark on the road of OEM production , although you can change in the short term more advanced foreign technology, but the loss of self- brand development .
The lack of independent brands , will be tightly nailed to the low end of the value chain , always walk on the road in low value-added .
Investment Advisor in the Research Director Zhang Yan Lin said that at present , multinational companies to enter the Chinese way of being quietly changed, from the past use of
China's low manufacturing costs , preferential policies to enhance competitiveness factors , leading to the acquisition of a number of Chinese enterprises, OEM cross
Country 's products , and use Chinese company's marketing network and manufacturing capabilities to become a part of its global industrial chain .
Gradually mastered their own initiative
If Chinese enterprises in order to seek quick access to advanced technology and become part of transnational global industrial chain practices often faced with great risk,
although the short term production may increase rapidly, but in key areas , high value-added parts will always be foreign controlled, and
The right to sell and purchase the right one was firmly in control , making it convenient for a profit transfer , in the process , but also Chinese enterprises can only act as a
manufacturing plant 's role only.
2013年11月1日星期五
Inclined belt conveyor towing improvements
Inclined belt conveyor for general purpose continuous bulk material handling equipment . As a result of having a corrugated wall and diaphragm belt , it is particularly
suitable for large transmission automated sorting machine angle . The product is widely used in coal, food , building materials, chemicals, utilities and metallurgical industry and other sectors .
A large angle belt conveyor belt device improved care
Original corrugated sidewall conveyor inclined backhaul segment is used in parallel under ordinary fixed belt conveyor idlers the carrier tape. Easy to use with the tape roller
skirts produce mosaic, Elevator conveyor mosaic will be serious damage to the diaphragm . Often a year or so in the use of conveyors , belt damage has been very serious and must be replaced,
which gives the user great economic losses.
For the above, we return idlers paragraph has been improved with a new device designed to replace care with parallel rollers . Entrusted with the new device consists of two
small rollers, nylon elastic belt and frame composition . Entrusted with the bottom of the device set up two small rollers fixed role , ring nylon strap around two small rollers
, the bracket has a tensioning device, which formed care with devices. The device is mounted on the wall of the tape were two skirts began to entrust the role of tape support
backhaul segment . No direct contact with the skirt small rollers, but in contact with the nylon band , the contact area, embedded into skirts to overcome the phenomenon of the
roller .
The support belt device is unpowered device, nylon belt run is passive, relying on friction effect , with the movement of the corrugated sidewall belts run , and can always
remain in contact with the skirt . Our factory has also developed a device used in conjunction with the support belt pulley duplex tray . By a large guide wheel , a small guide
wheel, fixed shaft and bearing components. Of which the guide wheel , a small guide wheel can be rotated around the axis separately , to overcome the tail left and right two
sides uneven tension caused by stretching the tape two different sides , causing the skirt slippage . Duplex prop shaft pulley fixed at both ends by a bearing fixed . The tape
is running, along with supporting wheels rotate , reduce damage due to friction tape and improve the life of skirts , while also extending the entire corrugated sidewall belt
life.
Second, the large angle belt conveyor towing device improved use of results
New wavy inclined belt conveyor belt device backhaul segment prop Lianghe sugar Reed has been used in the East branch, Zhefang sugar , sugar back to the Red River slag system in
corrugated sidewall conveyor belt , have achieved good use of effects. After three crop use , wear and tear tape is very small, almost no damage , by the user's praise. The
corrugated sidewall belt conveyor belt device backhaul segment prop , design reasonable, good performance and easy maintenance . Use of the device extends the life of the tape
ribs 3-4 times , users can save a lot of money .
suitable for large transmission automated sorting machine angle . The product is widely used in coal, food , building materials, chemicals, utilities and metallurgical industry and other sectors .
A large angle belt conveyor belt device improved care
Original corrugated sidewall conveyor inclined backhaul segment is used in parallel under ordinary fixed belt conveyor idlers the carrier tape. Easy to use with the tape roller
skirts produce mosaic, Elevator conveyor mosaic will be serious damage to the diaphragm . Often a year or so in the use of conveyors , belt damage has been very serious and must be replaced,
which gives the user great economic losses.
For the above, we return idlers paragraph has been improved with a new device designed to replace care with parallel rollers . Entrusted with the new device consists of two
small rollers, nylon elastic belt and frame composition . Entrusted with the bottom of the device set up two small rollers fixed role , ring nylon strap around two small rollers
, the bracket has a tensioning device, which formed care with devices. The device is mounted on the wall of the tape were two skirts began to entrust the role of tape support
backhaul segment . No direct contact with the skirt small rollers, but in contact with the nylon band , the contact area, embedded into skirts to overcome the phenomenon of the
roller .
The support belt device is unpowered device, nylon belt run is passive, relying on friction effect , with the movement of the corrugated sidewall belts run , and can always
remain in contact with the skirt . Our factory has also developed a device used in conjunction with the support belt pulley duplex tray . By a large guide wheel , a small guide
wheel, fixed shaft and bearing components. Of which the guide wheel , a small guide wheel can be rotated around the axis separately , to overcome the tail left and right two
sides uneven tension caused by stretching the tape two different sides , causing the skirt slippage . Duplex prop shaft pulley fixed at both ends by a bearing fixed . The tape
is running, along with supporting wheels rotate , reduce damage due to friction tape and improve the life of skirts , while also extending the entire corrugated sidewall belt
life.
Second, the large angle belt conveyor towing device improved use of results
New wavy inclined belt conveyor belt device backhaul segment prop Lianghe sugar Reed has been used in the East branch, Zhefang sugar , sugar back to the Red River slag system in
corrugated sidewall conveyor belt , have achieved good use of effects. After three crop use , wear and tear tape is very small, almost no damage , by the user's praise. The
corrugated sidewall belt conveyor belt device backhaul segment prop , design reasonable, good performance and easy maintenance . Use of the device extends the life of the tape
ribs 3-4 times , users can save a lot of money .
2013年10月29日星期二
Technical Analysis belt abroad
Conveyor is widely used in a variety of modern industrial enterprises , the development trend of the conveyor so as to be understood by us . Now , the special machinery for your
brief introduction about the advantages of Extendable conveyor the conveyor belt at home and abroad for development and application .
First, the domestic belt conveyor technology status
Our manufacturing conveyor varieties, many types . In the "Eighth Five- Year" period, through the national one-stop " 10 000 t mining equipment ," implementation of the project
, conveyor technology has been greatly improved , coal mine with high-power, long distance belt conveyor
The key technology research and development screw conveyor of new products Lu have made great progress. Such as large- angle distance belt conveyor equipment , high efficient working face
telescopic belt conveyor etc. to fill the gap , and the key technology of the belt conveyor to reduce its main component parts
The theoretical research and product development , successfully developed a variety of soft start and braking device and PLC as the core of the programmable electronic control
devices , variable speed drive system uses hydraulic coupling and planetary gear reducer.
① continue to large-scale development . Large transmission capacity , including large-scale , large single length and large transmission angle and other aspects. Hydraulic
conveyor length reached 440 km or more. Belt conveyor length of nearly 15 km single , and has appeared composed by a number of Taiwan Contact and B two
Land of the " conveyor belt road ." Many countries are exploring long-distance, large capacity continuous transport of materials better conveyor structure .
② to expand the use of the conveyor . Developments in high temperature , low temperature , corrosive , radioactive , flammable substances in the work environment , as well as
capable of delivering fiery , explosive, Pellet , sticky material conveyor.
③ the conveyor structure to meet the automated material handling system to control stand-alone asked for. As used in automated sorting post office parcel trolley conveyor
sorting operation should meet the requirements.
④ reduce energy consumption in order to save energy , the field of conveyor technology has become an important aspect of research . Has one ton material handling energy
consumed by one kilometer conveyor selection as one important indicator .
⑤ reduce all kinds of conveyors in operation generated dust, noise and emissions .
Second, foreign conveyor technology status
Foreign conveyor technology has developed rapidly, which is mainly manifested in two aspects: one is functional diversification of belt conveyor , the application range
expansion, such as high- angle belt conveyors, tubular belt conveyors, space turning belt conveyor and other models ; hand
Is the belt itself has made a huge technology and equipment development, especially long-distance, large-capacity , high- speed and other large conveyor belt has become the main
direction of the development of its core technology is the development and application of a belt conveyor dynamic analysis and monitoring technology to improve the belt conveyor
Machine operating performance and reliability. Abroad has been designed for use or has been a few typical distance belt conveyor conveyor line . 1, Spain, Western Sahara is
the world 's longest conveyor line long distance conveyor line , the line up to 100km, with two and a half hours
Built and put into use in 1972 , used to rocky plateau in cloth . Carat apatite ore open pit transported Yi Era Yong harbor. The total investment amounted to two hundred million
marks . The line is expected to be able to reach the line for 30 years, the average annual transport capacity of 10 million tons of apatite ore (2000t / h
) . The entire line by the length of 6.9 ~ 11.8km conveyor consisting of 11 units . Bandwidth l000mm, using ST3150 -type steel cord belt , a belt speed of 4.5m / s. 2, just
that mine 20km ground conveyor belt system to represent the level of development of a modern transport
Line . The delivery system consists of a length of 10.3km flat cornering and a 10.1km line conveyor belt long form . Turning radius of curvature of the belt conveyor 9km arc
length 4km. Two conveyor line parameters, in addition to other parameters are the same transport capacity
Of 2200t / h Bandwidth 1050mm belt tensile strength of 3000N/mm safety factor of 5 tensioning device for the hammer taut. Allow stroke 25m, driven by three sets
700KW DC motor, double drum drive . System uses an advanced technology manufacturing and installation of roller , horizontal
Turning technology and dynamic analysis techniques. 3,15.6 km horizontal bend cross conveyor and put into use in 1996 , is the world 's longest single belt conveyor . The
conveyor will ZISCO of NewRippleCreek mine through secondary crushing of iron ore shipped to Zimbabwe
Steelworks nearby. Transport capacity of dry ore 500t / h, wet ore 600t / h. System length of 15.6km, material lifting height of 90m. Recent years, China 's large belt conveyor
design, manufacturing has also been considerable progress.
From the late 1960s has been the production of more than 200 steel cord conveyor in coal, phosphate , iron ore and port to use . Length up to 7602m where a large single belt
conveyor has been put into use. Currently, including the length of the conveyor line l0km and several other long-distance band
Conveyor systems are being designed or planned .
brief introduction about the advantages of Extendable conveyor the conveyor belt at home and abroad for development and application .
First, the domestic belt conveyor technology status
Our manufacturing conveyor varieties, many types . In the "Eighth Five- Year" period, through the national one-stop " 10 000 t mining equipment ," implementation of the project
, conveyor technology has been greatly improved , coal mine with high-power, long distance belt conveyor
The key technology research and development screw conveyor of new products Lu have made great progress. Such as large- angle distance belt conveyor equipment , high efficient working face
telescopic belt conveyor etc. to fill the gap , and the key technology of the belt conveyor to reduce its main component parts
The theoretical research and product development , successfully developed a variety of soft start and braking device and PLC as the core of the programmable electronic control
devices , variable speed drive system uses hydraulic coupling and planetary gear reducer.
① continue to large-scale development . Large transmission capacity , including large-scale , large single length and large transmission angle and other aspects. Hydraulic
conveyor length reached 440 km or more. Belt conveyor length of nearly 15 km single , and has appeared composed by a number of Taiwan Contact and B two
Land of the " conveyor belt road ." Many countries are exploring long-distance, large capacity continuous transport of materials better conveyor structure .
② to expand the use of the conveyor . Developments in high temperature , low temperature , corrosive , radioactive , flammable substances in the work environment , as well as
capable of delivering fiery , explosive, Pellet , sticky material conveyor.
③ the conveyor structure to meet the automated material handling system to control stand-alone asked for. As used in automated sorting post office parcel trolley conveyor
sorting operation should meet the requirements.
④ reduce energy consumption in order to save energy , the field of conveyor technology has become an important aspect of research . Has one ton material handling energy
consumed by one kilometer conveyor selection as one important indicator .
⑤ reduce all kinds of conveyors in operation generated dust, noise and emissions .
Second, foreign conveyor technology status
Foreign conveyor technology has developed rapidly, which is mainly manifested in two aspects: one is functional diversification of belt conveyor , the application range
expansion, such as high- angle belt conveyors, tubular belt conveyors, space turning belt conveyor and other models ; hand
Is the belt itself has made a huge technology and equipment development, especially long-distance, large-capacity , high- speed and other large conveyor belt has become the main
direction of the development of its core technology is the development and application of a belt conveyor dynamic analysis and monitoring technology to improve the belt conveyor
Machine operating performance and reliability. Abroad has been designed for use or has been a few typical distance belt conveyor conveyor line . 1, Spain, Western Sahara is
the world 's longest conveyor line long distance conveyor line , the line up to 100km, with two and a half hours
Built and put into use in 1972 , used to rocky plateau in cloth . Carat apatite ore open pit transported Yi Era Yong harbor. The total investment amounted to two hundred million
marks . The line is expected to be able to reach the line for 30 years, the average annual transport capacity of 10 million tons of apatite ore (2000t / h
) . The entire line by the length of 6.9 ~ 11.8km conveyor consisting of 11 units . Bandwidth l000mm, using ST3150 -type steel cord belt , a belt speed of 4.5m / s. 2, just
that mine 20km ground conveyor belt system to represent the level of development of a modern transport
Line . The delivery system consists of a length of 10.3km flat cornering and a 10.1km line conveyor belt long form . Turning radius of curvature of the belt conveyor 9km arc
length 4km. Two conveyor line parameters, in addition to other parameters are the same transport capacity
Of 2200t / h Bandwidth 1050mm belt tensile strength of 3000N/mm safety factor of 5 tensioning device for the hammer taut. Allow stroke 25m, driven by three sets
700KW DC motor, double drum drive . System uses an advanced technology manufacturing and installation of roller , horizontal
Turning technology and dynamic analysis techniques. 3,15.6 km horizontal bend cross conveyor and put into use in 1996 , is the world 's longest single belt conveyor . The
conveyor will ZISCO of NewRippleCreek mine through secondary crushing of iron ore shipped to Zimbabwe
Steelworks nearby. Transport capacity of dry ore 500t / h, wet ore 600t / h. System length of 15.6km, material lifting height of 90m. Recent years, China 's large belt conveyor
design, manufacturing has also been considerable progress.
From the late 1960s has been the production of more than 200 steel cord conveyor in coal, phosphate , iron ore and port to use . Length up to 7602m where a large single belt
conveyor has been put into use. Currently, including the length of the conveyor line l0km and several other long-distance band
Conveyor systems are being designed or planned .
2013年9月25日星期三
Roller conveyor rollers how to calculate the thickness
Roller conveyor indispensable accessories - rollers. Then, the thickness of roller conveyor How much would be the most appropriate ?
Roller conveyor for indoor environments in the Flexible Roller Conveyor food manufacturing operations the most widely used , especially puffed food production environment stacking materials wide area,
while the roller conveyor line configuration in the environment within the transport machinery , small footprint, can be freely extended or shorten the length of transmission
lines to meet the delivery of materials under limited conditions . As roller assembly line in the process of Telescoping conveyors material conveying line length can be retractable , the
unit group of roller conveyor line may extend or shorten a single unit ratio of 3 times. Roller conveyor line in the transportation of food material can be inclined conveyor ,
horizontal transport and vertical transportation , while also conveying direction with the flexibility to change the location of the material inclination angle of the direction
of transport demand , most degree tilt angle limit is 180 degrees . Roller conveyor maintenance is quite simple , unit is composed by the eight rollers , each unit can be used
independently , but also the use of other cells connected in series , with the progress or modular design , easy disassembly. Roller conveyor in the transportation of materials
can be based on the needs of the table , adjust the mechanical leg height , suitable range. Roller reliable pipeline transportation of materials can be positive and negative
direction , the surface is determined by electrostatic spraying , beautiful appearance.
Roller shell diameter of the cylinder depends on the thickness , simplified length , belt tension and wear of braking factors . Calculated on the cylindrical shell thickness
is difficult , and generally smaller the calculated value . And taking into account the resistance to abrasion and ease of manufacture , the thickness of the cylindrical shell
are taken generally thicker . In determining the thickness of the cylinder shell after shell strength for simple checking . Cylindrical shell due by law and tangential load ,
and the size of the load along the circumference of the drum pieces to be changing , at present, on the cylinder shell is no accurate calculation of the calculation method .
Although relatively finite element calculation can give more accurate results , but due to the lack of conveyor rollers still calculating the general program dedicated only to
individual drum finite element analysis .
Roller conveyor for indoor environments in the Flexible Roller Conveyor food manufacturing operations the most widely used , especially puffed food production environment stacking materials wide area,
while the roller conveyor line configuration in the environment within the transport machinery , small footprint, can be freely extended or shorten the length of transmission
lines to meet the delivery of materials under limited conditions . As roller assembly line in the process of Telescoping conveyors material conveying line length can be retractable , the
unit group of roller conveyor line may extend or shorten a single unit ratio of 3 times. Roller conveyor line in the transportation of food material can be inclined conveyor ,
horizontal transport and vertical transportation , while also conveying direction with the flexibility to change the location of the material inclination angle of the direction
of transport demand , most degree tilt angle limit is 180 degrees . Roller conveyor maintenance is quite simple , unit is composed by the eight rollers , each unit can be used
independently , but also the use of other cells connected in series , with the progress or modular design , easy disassembly. Roller conveyor in the transportation of materials
can be based on the needs of the table , adjust the mechanical leg height , suitable range. Roller reliable pipeline transportation of materials can be positive and negative
direction , the surface is determined by electrostatic spraying , beautiful appearance.
Roller shell diameter of the cylinder depends on the thickness , simplified length , belt tension and wear of braking factors . Calculated on the cylindrical shell thickness
is difficult , and generally smaller the calculated value . And taking into account the resistance to abrasion and ease of manufacture , the thickness of the cylindrical shell
are taken generally thicker . In determining the thickness of the cylinder shell after shell strength for simple checking . Cylindrical shell due by law and tangential load ,
and the size of the load along the circumference of the drum pieces to be changing , at present, on the cylinder shell is no accurate calculation of the calculation method .
Although relatively finite element calculation can give more accurate results , but due to the lack of conveyor rollers still calculating the general program dedicated only to
individual drum finite element analysis .
2013年9月21日星期六
Several types of belt conveyors piecing method
Conveyor belt joints between different methods are not the same, the following describes several common types of fittings method . An ordinary belt fitting methods : mechanical
joints generally refers to the use of belt buckle joints, this joint approach easy and convenient , but also more economical , but the joint
Low efficiency , easy to damage, for the life of food conveyor belt products have a certain influence . Whole flame retardant PVC and PVG conveyor belt joint anti-static , generally
8 with the following products have adopted this joint approach . Cold bonding head , which uses cold bonding adhesive for fitting. Such joints do
France efficient than mechanical joints , but also more economical , should be able to have a better fitting effect, but from a practical point of view, due to process
conditions are more difficult to master , while the quality of the adhesive joint is very large , so it is not very stability. Hot vulcanized joints , proved to be
A joint optimal way to ensure high joint efficiency, but also very stable , joint life is long , easy to grasp. But there are processes cumbersome, costly and joints for a long
time and other shortcomings. 2, PVC and PVG whole core fire-retardant food metal detector belt joint approach : Because the entire core
Band structure is rather special , the joint is not easy, so most of the mechanical joints , which represents a belt buckle connector. But eight or more conveyor belt, in order
to ensure joint effects, general, or by thermal curing joint approach. Joint structures are finger joints . PVC and PVG whole
Flame retardant conveyor belt heat curing joint process more complicated , the equipment requirements are relatively high . 3 , layered belt piecing method .
joints generally refers to the use of belt buckle joints, this joint approach easy and convenient , but also more economical , but the joint
Low efficiency , easy to damage, for the life of food conveyor belt products have a certain influence . Whole flame retardant PVC and PVG conveyor belt joint anti-static , generally
8 with the following products have adopted this joint approach . Cold bonding head , which uses cold bonding adhesive for fitting. Such joints do
France efficient than mechanical joints , but also more economical , should be able to have a better fitting effect, but from a practical point of view, due to process
conditions are more difficult to master , while the quality of the adhesive joint is very large , so it is not very stability. Hot vulcanized joints , proved to be
A joint optimal way to ensure high joint efficiency, but also very stable , joint life is long , easy to grasp. But there are processes cumbersome, costly and joints for a long
time and other shortcomings. 2, PVC and PVG whole core fire-retardant food metal detector belt joint approach : Because the entire core
Band structure is rather special , the joint is not easy, so most of the mechanical joints , which represents a belt buckle connector. But eight or more conveyor belt, in order
to ensure joint effects, general, or by thermal curing joint approach. Joint structures are finger joints . PVC and PVG whole
Flame retardant conveyor belt heat curing joint process more complicated , the equipment requirements are relatively high . 3 , layered belt piecing method .
2013年9月11日星期三
Plate chain conveyor structure and application
Plate chain conveyor, fixed to the traction chain, using the number of link plates in a horizontal or inclined direction of the Turn conveyor transport of materials to form a ring
with a single sheet as articulated traction transport bearing member bearing surface and having a lateral spacer set in the groove box drive belts by septa scraping transport of
coal
. drag chain conveyor by the drive mechanism , tensioning device , traction chains, slats , driven and headed sprockets , racks and other components. In metallurgy , coal, chemicals,
electricity, machinery manufacturing and other industrial sectors in the national economy have been widely used.
Line roller conveyors advantages:
1, the transport object length, width and height ;
2 , the weight of each conveying unit ;
3 , the bottom of the conveyance object condition;
4 , any special requirements on the work environment ( for example: humidity , high temperature, the effects of chemicals , etc. ) ;
5 , the conveyor is unpowered motor driven type or style .
with a single sheet as articulated traction transport bearing member bearing surface and having a lateral spacer set in the groove box drive belts by septa scraping transport of
coal
. drag chain conveyor by the drive mechanism , tensioning device , traction chains, slats , driven and headed sprockets , racks and other components. In metallurgy , coal, chemicals,
electricity, machinery manufacturing and other industrial sectors in the national economy have been widely used.
Line roller conveyors advantages:
1, the transport object length, width and height ;
2 , the weight of each conveying unit ;
3 , the bottom of the conveyance object condition;
4 , any special requirements on the work environment ( for example: humidity , high temperature, the effects of chemicals , etc. ) ;
5 , the conveyor is unpowered motor driven type or style .
2013年9月4日星期三
Belt plastic cover damage processing
( one ) partial degumming , forming nest pit . Mostly underground coal containing liver stones and more, resulting in a large block .
Chute mounted too high , the impact screw conveyor force . Feeding device should be corrected to increase the buffer device , lower feed height , or chute slope decreases.
The damage mentioned above , can be vulcanized patch , underground cold viscosity is required. The same way as above .
( Two ) vertical cracks. More in the guide plate at the bottom . The reason is bad installation or material guide board . Should be re- installed, do not make contact with wood
or iron belt ; roller or damage ; damage or tail flap ; belt buckle damaged or hanging bad ; lug or damaged, worn on the layer ;
Sweeper flat iron or a bad angle to hang the belt . Approach should replace the damaged section of the belt , carefully check whether the length of the damaged parts , spiral conveyor bad parts
grid update .
( Three ) lower wear and concentrated . Multi- segment belt there is no load materials , objects or cleaning does not work ; damaged, do not rotate ; too much or roller adhesive
materials , such as coal mine , stone fall to the dead zone F- belt, roller, installed , including board sweeper . Or plant extinction roller should be regularly
Sweep .
( Four ) transverse cracks on the tapes . The reason is not enough or rubber belt tension due to aging . Repair methods in addition to switch to multi- layers of tape , but can
reduce the maximum tension .
Chute mounted too high , the impact screw conveyor force . Feeding device should be corrected to increase the buffer device , lower feed height , or chute slope decreases.
The damage mentioned above , can be vulcanized patch , underground cold viscosity is required. The same way as above .
( Two ) vertical cracks. More in the guide plate at the bottom . The reason is bad installation or material guide board . Should be re- installed, do not make contact with wood
or iron belt ; roller or damage ; damage or tail flap ; belt buckle damaged or hanging bad ; lug or damaged, worn on the layer ;
Sweeper flat iron or a bad angle to hang the belt . Approach should replace the damaged section of the belt , carefully check whether the length of the damaged parts , spiral conveyor bad parts
grid update .
( Three ) lower wear and concentrated . Multi- segment belt there is no load materials , objects or cleaning does not work ; damaged, do not rotate ; too much or roller adhesive
materials , such as coal mine , stone fall to the dead zone F- belt, roller, installed , including board sweeper . Or plant extinction roller should be regularly
Sweep .
( Four ) transverse cracks on the tapes . The reason is not enough or rubber belt tension due to aging . Repair methods in addition to switch to multi- layers of tape , but can
reduce the maximum tension .
2013年8月30日星期五
Chain conveyor what kind of features
Straight chain plate width is lost by the 63.5,82.5,101.6,114.3,152.4,190.5,254,304.8 ; turning chain plate width is there 82.5,114.3,152.4,190.5,304.8 , can be more widely used in food , canned , pharmaceuticals , beverages , cosmetics and Cleaning supplies, paper products , condiments , dairy and tobacco automatic transmission, distribution and packaging transport connections .
Chain plate is stainless steel and plastic and other materials , specifications and varieties is very much, according to transportation of materials and process requirements
selection, can be more of all walks of life to meet different needs.
Chain Pipe conveyor are usually able to direct water rinse or simply soaked in water. Equipment clean and convenient , to meet the food and beverage industry hygiene requirements.
Equipment layout is very flexible . Able to complete the level in a conveyor line , tilt and turn conveyor .
Chain conveyor for conveying surface flat and smooth , friction is small , the material is in a smooth transition between the industrial conveyor line can transport all kinds of glass bottles , PET bottles , cans and other materials , but also can transport all kinds of bags .
2013年8月25日星期日
Analysis of the main features of chain conveyor machinery
1 large transmission capacity and efficient drag chain conveyor allows small space transport a large number of materials, transport capacity up to 6m 3 / h ~ 600m 3 / h.
(2) transport energy consumption is low, with the internal friction of materials, variable promote material is pulled to 50% energy saving compared with the roller conveyor.
3 seals and security, fully sealed enclosure so that dust can seamlessly drill, safe, reliable operation.
4 - Use low-cost, energy-saving and durable, less maintenance, low cost (about spiral machine 1/10), to ensure the normal operation of the host in order to increase output. Reduce consumption. Improve efficiency.
5 Chain Conveyor complete series, FU series FU150.FU200.FU270.FU50.FU410.FU500.FU600 and FU700 other models, and can provide two types of two-way transmission.
6 long life, alloy steel, heat-treated by means of advanced processing from the conveyor, its normal life> 5 years, the chain roller life (depending on material) ≥ 2 ~ 3 years.
7. Process layout flexible and can be elevated. Ground or pit arranged horizontally or climbing (≤ 15 °) to install, can be installed with the machine level plus climbing, multi-point access to materials.
(2) transport energy consumption is low, with the internal friction of materials, variable promote material is pulled to 50% energy saving compared with the roller conveyor.
3 seals and security, fully sealed enclosure so that dust can seamlessly drill, safe, reliable operation.
4 - Use low-cost, energy-saving and durable, less maintenance, low cost (about spiral machine 1/10), to ensure the normal operation of the host in order to increase output. Reduce consumption. Improve efficiency.
5 Chain Conveyor complete series, FU series FU150.FU200.FU270.FU50.FU410.FU500.FU600 and FU700 other models, and can provide two types of two-way transmission.
6 long life, alloy steel, heat-treated by means of advanced processing from the conveyor, its normal life> 5 years, the chain roller life (depending on material) ≥ 2 ~ 3 years.
7. Process layout flexible and can be elevated. Ground or pit arranged horizontally or climbing (≤ 15 °) to install, can be installed with the machine level plus climbing, multi-point access to materials.
2013年8月13日星期二
Inclined belt conveyor belt repair and maintenance method resolution
Inclined belt conveyor with a large open-pit resulting from the application, power plants, cement factories and ports, etc., but also has a large transmission capacity, low
energy consumption, easy maintenance, etc., will become dominant in the conveyor. However, at work due to improper use or belt unexpected, will lead skirt
Plastic bucket edges and tear or fall off, replace the belt will increase production costs. To reduce production costs, research and explore large angle belt conveyor belt
repair process points necessary.
Inclined Turn conveyor belt repair and maintenance method resolution
Inclined belt conveyor installed idling two hours after the first check the belt for cracks or fall off, if it should be timely treatment; early feeding of design capacity
load of about 50%, after a period of time to determine the correct operation of the normal load and then feeding operation; the course of the
Found that large angle belt conveyor and out side there aggregates, should be promptly stop treatment, to prevent skirts or plastic bucket off.
Inclined 90 degree turn conveyor belt cracking or peeling, repair should note the following:
1, clean up the site sanitation, and to be bonded skirts, plastic bucket bonding surface and the belt surface clean.
2, with a polishing machine will be uniform and thin belts, skirts and other bond hair and clean place to play, but the belt canvas layer or can not appear at the uneven
fight hair.
3, gluing before the first binder with a hardening agent uniformly mixed by a certain percentage, so that the adhesive has cured with a quick, strong bond, heat resistance,
heat aging and bonding does not require a fixed pressure and so on.
4, gluing coating is to be strong, thin and uniform coating, if the belt canvas fabric layer or other layers or particles to fight hair loss at the obvious, to brush more
than three.
5, to be dried to a non-stick coating back when skirts or plastic bucket gradually pressed home with the coating, but with a hammer beating from the middle to the edge
ordered to rule out internal air.
energy consumption, easy maintenance, etc., will become dominant in the conveyor. However, at work due to improper use or belt unexpected, will lead skirt
Plastic bucket edges and tear or fall off, replace the belt will increase production costs. To reduce production costs, research and explore large angle belt conveyor belt
repair process points necessary.
Inclined Turn conveyor belt repair and maintenance method resolution
Inclined belt conveyor installed idling two hours after the first check the belt for cracks or fall off, if it should be timely treatment; early feeding of design capacity
load of about 50%, after a period of time to determine the correct operation of the normal load and then feeding operation; the course of the
Found that large angle belt conveyor and out side there aggregates, should be promptly stop treatment, to prevent skirts or plastic bucket off.
Inclined 90 degree turn conveyor belt cracking or peeling, repair should note the following:
1, clean up the site sanitation, and to be bonded skirts, plastic bucket bonding surface and the belt surface clean.
2, with a polishing machine will be uniform and thin belts, skirts and other bond hair and clean place to play, but the belt canvas layer or can not appear at the uneven
fight hair.
3, gluing before the first binder with a hardening agent uniformly mixed by a certain percentage, so that the adhesive has cured with a quick, strong bond, heat resistance,
heat aging and bonding does not require a fixed pressure and so on.
4, gluing coating is to be strong, thin and uniform coating, if the belt canvas fabric layer or other layers or particles to fight hair loss at the obvious, to brush more
than three.
5, to be dried to a non-stick coating back when skirts or plastic bucket gradually pressed home with the coating, but with a hammer beating from the middle to the edge
ordered to rule out internal air.
2013年8月8日星期四
Six characteristics chain conveyors
1 large transmission capacity and efficient conveyor allows small space transport a large number of materials, transport capacity 6m ³ / h ~ 600m ³ / h.
(2) transport energy consumption is low, with the internal friction of materials, variable promote material is pulled to 50% energy saving compared with the screw conveyor.
3 seals and security, fully sealed enclosure so that dust can seamlessly drill, safe, reliable operation.
4 long life, alloy steel, heat-treated by means of advanced processing from the Telescopic belt conveyor, its normal life> 5 years, the chain roller life (depending on material) ≥ 2 ~ 3 years.
5. Process layout flexible and can be elevated, ground or pit arranged horizontally or climbing (≤ 15 °) to install, can be installed with the machine level plus climbing,
multi-point access to materials.
6 Use low-cost, energy-saving and durable, less maintenance, low cost (about spiral machine 1/10), to ensure the normal operation of the host in order to increase output, reduce
consumption and improve efficiency.
(2) transport energy consumption is low, with the internal friction of materials, variable promote material is pulled to 50% energy saving compared with the screw conveyor.
3 seals and security, fully sealed enclosure so that dust can seamlessly drill, safe, reliable operation.
4 long life, alloy steel, heat-treated by means of advanced processing from the Telescopic belt conveyor, its normal life> 5 years, the chain roller life (depending on material) ≥ 2 ~ 3 years.
5. Process layout flexible and can be elevated, ground or pit arranged horizontally or climbing (≤ 15 °) to install, can be installed with the machine level plus climbing,
multi-point access to materials.
6 Use low-cost, energy-saving and durable, less maintenance, low cost (about spiral machine 1/10), to ensure the normal operation of the host in order to increase output, reduce
consumption and improve efficiency.
2013年7月29日星期一
Two conveyors face means the benefits
Two conveyors will be close to each other, wedge: wedge conveyor device consists of two face-transport mechanism into. Product feeds to wedge conveyor after. And clamped from
both the product, so that the product can be up or down horizontal conveyor. With manual crank can wedge member into
OK overall adjusted to provide for a variety of product size fast switching and flexibility. Products as well as products needed to grasp ways to make a mandatory requirement
for chain type, but you can Food conveyor transport of any product, such as aerosol cans, car parts, bottles, and even
To a paper towel roll
Product falls by gravity being sucked into a skid fossa. A wide variety of non-slip components, non-slip type: slip-type conveyor. Including roller, the product can remain in
place.
Not only can the product upward, A lpine type: Alpine conveyor uses a series of zig-zag can be gradually increased to enhance the components. But also for high-throughput
applications of conveying a transfer line buffering capabilities.
Vertical lifting hoist to the top of the product, hoist formula: Located on the ground by a conveyor into product. Then at the top of its launch to a horizontal Screw conveyor. This
conveyor will transport products to the specific area, and the product to the next processing site. Hoist usually
The speed is not as critical for consideration of the small volume applications.
both the product, so that the product can be up or down horizontal conveyor. With manual crank can wedge member into
OK overall adjusted to provide for a variety of product size fast switching and flexibility. Products as well as products needed to grasp ways to make a mandatory requirement
for chain type, but you can Food conveyor transport of any product, such as aerosol cans, car parts, bottles, and even
To a paper towel roll
Product falls by gravity being sucked into a skid fossa. A wide variety of non-slip components, non-slip type: slip-type conveyor. Including roller, the product can remain in
place.
Not only can the product upward, A lpine type: Alpine conveyor uses a series of zig-zag can be gradually increased to enhance the components. But also for high-throughput
applications of conveying a transfer line buffering capabilities.
Vertical lifting hoist to the top of the product, hoist formula: Located on the ground by a conveyor into product. Then at the top of its launch to a horizontal Screw conveyor. This
conveyor will transport products to the specific area, and the product to the next processing site. Hoist usually
The speed is not as critical for consideration of the small volume applications.
2013年7月22日星期一
Transportation machinery Ball introduction
Evolved from the plug opening and closing member is a sphere, with the sphere around the torsion axis of the stem 90 ° to achieve the purpose of opening and closing the main
valve for cutting off the pipe, and changing the direction of media flow distribution, imagine a V shaped opening of the ball also has good flow adjustment
Degree function.
Strengths:
(1) has the lowest flow resistance (theory 0)
(2) does not result in the obligation stuck (without lubricant) it can be reliably used in aggressive media and low boiling liquids;
(3) In the large pressure and curve conveyor temperature range, can be completely sealed;
(4) can be fast opening and closing, opening and closing times of certain structures only 0.05 to 0.1 in order to secure for the test bed automation system. Quick opening and
closing valves, domination no impact.
(5) spherical closure member can be automatically positioned on the location of the frontier;
(6) on both sides of the working medium in a reliable seal;
(7) In the fully open and fully closed, the ball and seat sealing surface and the dielectric isolation, so the high dielectric top end of the valve does not cause corrosion of
the sealing surface;
(8) is compact, light weight, you can assume it piecemeal for cryogenic medium most reasonable valve structure;
(9) Body symmetry, especially welded body structure, can well withstand the stress from the pipe;
(10) Close parts can withstand the pressure differential.
(11) fully welded ball valve body can be buried in the ground, so that the valve inner parts from erosion, the maximum service life of up to 30 years, kerosene, natural gas
pipeline valve ideal.
Defects:
(1) because the main valve seat ring material is PTFE, for almost all the flesh has a chemical is inert and has a low coefficient of friction, function fluctuations, not aging,
temperature and sealing performance chain conveyor for a wide range of excellent The analysis of the features. But PTFE
Physical characteristics, including a higher coefficient of expansion of the dull cold and poor thermal conductivity, pleading seat sealing imagination surround these
characteristics must stop. So, when the sealing material hardens, the reliability of sealing the destruction. And, PTFE temperature levels
Low, only less than 180 ℃ circumstances. Beyond this temperature, the sealing material will be aging. Consider the case of long-term use, usually only at 120 ℃ not used.
(2) its scheduling function with respect to the valve to be worse, especially pneumatic valve (or electric valve)
2013年7月16日星期二
How to make tube feeder uniform emission from the flat-bottomed silos bulk solids
Most of the world industrial sector should be carried out bulk solids storage and handling. These operations the system plays an important role, and thus they should be
efficient and economical. Powder and bulk solids Branch during transport, accompanied by mixing, blending, grinding, fluidization
And so on.
From the storage structure (silo) nesting often problematic. Powder at the outlet of the silo will Chengke arch or bridge, so that the feed stream is interrupted. Sometimes, the
powder formed in the silo unloader central sulcus. This is called funnel flow silo, the silo of the material stored in the material flow depends on the pressure head. As
If the silo pressure head is insufficient, the material flow deteriorated even stop, so that the material stored in the silo in the central branch grooves becomes bore, usually Telescoping conveyors
called rat hole. Silo generate mouse hole, actually make subsequent job completely stopped, brought the cost is very large.
On the other hand, it may be designed such that the powder hopper on any uniform flow cross section. This flow pattern is called the group stream. Determines the general shape
of material flow angles of the walls of the funnel. If this angle is steeper than the critical value, then the group flow, otherwise, is funnel flow.
Few group flow silo high volumetric efficiency, and the problems are often indiscriminately natural ignorance. Therefore, the industrial sector still seems to want to use a high
volumetric efficiency funnel flow silo. In fact, the highest volumetric efficiency is flat-bottomed silos, but the condition is to be able to completely empty silo. Tube to
Feeder hopper used in conjunction with this, you can receive the best results.
A common illnesses
Most of the required performance stable process, so the system should be designed to meet the above requirements. To powder and bulk solids segregation, for example, joining the
silo, the material will depend particle size distribution. If using central feeding device, the heap will analyze large particles when rolled edge silo
And small are concentrated in the middle. If in this case the use of a funnel flow silo, the discha rge will first of the fine, the rear output and large, the discharged powder
uneven quality of the final product will change. gravity skatewheel conveyor
On the other hand, if the group flow branch positions, then the powder discharged from the silo entire cross-section, so that the segregation of the material remix.
On the silo, especially for group flow branch positions, designed feeder or the exhaust branch equipment is expensive. Because the design of this machine should make the whole
to a feed hopper outlet in order to maintain a uniform activation of the material flow, in this case, the material stored in the silo positive effect on the feed unit.
Naturally, should be designed
Large motor to overcome this peak load. Peak load is caused by the stress distribution in the powder, called the living area or peak stress caused. There are several ways this
can be changed to the arched stress stress zone area. Determine the peak load is not an easy task, in most cases
The motor feeder is designed to give bigger. If the design of the motor is too small, feeder the fault is common.
On the other hand, the powder hopper change form feed stream is also very common. While hordes of silo can design flow, but after the placement of the feeder hopper funnel form
part of the material flow is not necessarily the group flow mode. Powder not start with the front end portion of the discharge hopper funnel, is from the rear
Discharge stream longer group flow. This often results in the formation of rat hole in the warehouse compound, material flow tends to funnel flow. To remedy this situation, we
must consider the feeder hopper and the matching problem, so that the whole system to a whole work. As described below, and tube feeding function in a whole new way
Bulk solid materials to solve problems drag material.
Second, when the silo wall material flow stress
When the bin is full first, then only the discharge, the material flow stress zone created in the cylinder walls. The material flow stress level depends on the size of the
number of material flow patterns and the aspect ratio of the silo. If the material flow patterns slight contraction, the general will stress increases. If the aspect ratio of>
5, the effective transition
Upper part of the deformation energy can follow Jenike theory or group flow hopper design Janssen theory.
Third, the experimental station
Test rig is mounted on a tubular silo feeder. Silo diameter 3.9m, height 1m (if necessary be increased to 3.5m). Tube feeder is located at the bottom of the silo, the captain
1.95m, diameter 0.324m.
A series of pipes called "active device" Slots, Slots flow of material through the tube, the length of these slots to a gradual increase around the silo, which is for the powder
to a uniform cross-section along the flow of the entire silo considered . Tube with screw conveyor used to transport the material hopper
Heart. Located in the bottom center of the silo chute, conveyor belt into the material.
Tube around its own axis only and to be swept at the same time turn the silo. Tube has two drives, one for rotation about its own axis, and one for lateral movement of the
entire section on the bottom of the silo swept rpm. In addition, the screw conveyor has its own drives. Driving
The gear device in the silo center, and drive means itself in the side of the feed chute.
CONCLUSIONS
Tubular Division machine to be used in conjunction with axisymmetric silo can well solve many bulk solid materials transported operational problems. Tube feeding function from a
silo or funnel flow trough plane of the carriage of bulk solids.
1 uniform drag material
For bulk solids silos to achieve uniform drag material. Currently, the group is in need of a uniform flow silo drag material that will group flow hopper with belt or screw
feeder, etc. combined and achieve uniform drag material is very difficult, unless the feeder and hopper outlet junction Make the appropriate design, but
This issue silos and tube feeder can be solved with the use.
(2) Minimum segregation
Uniform material also means less drag segregation problem, namely to reduce the powder particle size by separating went to the warehouse wall to avoid the rough and fine focus
on the feed point. With the central segregation in the feeding point is common.
3 crushed less
Because the tube is smooth, while rotating the tube with the surrounding solid material than the dynamic friction screw feeder is small, so transportation is not severe pellets,
ground less.
4 high energy efficiency
Energy required for transporting bulk solids than the corresponding screw feeder is much less, saving about 70%.
5 rows of uniform quantity
Powder can be stably discharged from the hopper, discharge quantity by changing the rotational speed of the pipe to be controlled. Optimum sweep speed of the tube taken about
the slot geometry Shaanxi; for a given combination of materials and the slot shape, the optimal sweep speed should be constant.
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