2013年5月28日星期二

Bucket elevators Common Cause analysis and treatment programs




     Hopper with bucket elevator is usually canvas belt. Canvas belt and tape prone to tearing, sometimes with tape and chains. The combined effect of various failures. This is

one of the most serious fault. General hopper and the hopper with a deviation most likely caused by the process of shedding a tear hopper

. Should be timely and comprehensive identification of reasons for troubleshooting. In addition, the material is mixed with a sharp edge of the foreign body, will also split

hopper with planning. Therefore, the production, it should be installed in the inlet or magnet wire mesh to prevent large objects have fallen into the base, effectively prevent

the occurrence of such phenomena. Production period

, The current form of a set of effective control measures. Often caused by improper operation bucket elevators current is too high, resulting in the phenomenon of the device is check weighers

not working properly, not only to the large increase in the workload of field personnel, but also affect production. After a summary of the operator and practices from time to

time

.

Bucket elevators opportunities to the general question about the following aspects:

     1, because the use of a chain drive. Sprockets will wear, when used for some time. Need for timely replacement sprocket.
     2, sprocket slipping. Users can adjust the hammer lever tensioning device, or there is the case off the chain. Tensioning both automatically and can adhere to a constant

tension, to prevent slippage and from chain.belt conveyor manufacturer
     3, the device during use to maintain a constant voltage. You can add auxiliary equipment such as electrical control box, in order to avoid excessive current or voltage

instability burning motor. Both can be easily controlled bucket elevator operation, stable voltage and current can also play a role.
    4, hopper with skid
     Device is the use of the hopper with the first round of the friction torque between the drive shaft for material hopper elevator belt tension is not enough. Should be

immediately shut down, will result in the hopper with skid. At this time. Adjusting belt tensioning device to tighten the hopper. If you can not make the hopper belt tensioning

device is fully tensioned, indicating Zhang

Short stroke clamping device should be re-adjusted.
     The correct solution is to unlock the hopper with connectors. With the hopper by the elevator into the nose, so that the end of the tensioning device on the wheel adjusted

to the highest position. Through the first round and bottom round, and both connected, so that the tension in the hopper without tension with the state. Then the tensioning

device is fully

Tensioned. At this point tensioning device untapped tension adjustment screw stroke of not less than 50% of the whole trip
      Hoist hoist overload overloaded. Cause hopper with skid. You should reduce the amount of feed materials, drag torque increases. And seeks to uniform feeding. If you reduce

the feed rate, still not improve skid, sit inside the machine may be too much or material accumulation mentor material hopper are stuck,

Should stop inspection, troubleshooting.
      Head wheel shaft and hopper band looks too smooth head round shafts and hopper band looks too smooth. Cause hopper with skid. In this case, the reduced friction between

the two. In the inner shaft and outer coat hopper with rubber to increase friction.
      Head round and bottom round head wheel bearing rotation ineffective and bottom wheel bearing rotation is not working. Cause hopper with skid. Then washable refueling or

replace bearings. Drag torque increases.
      Head round and bottom round head wheel and axle assembly errors bottom wheel axle assembly errors are mainly embodied in the following aspects: First, the end of the first

round of the wheel and drive shaft in the same vertical plane and not parallel; Second, two shafts are mounted in a horizontal position and not in the same vertical plane; three

Are two parallel shafts. Hopper with a deviation, the same vertical plane and not level. At this time. Easy to cause shock and barrel hopper, hopper bands tear. Should be

immediately shut down, troubleshooting. Be the first wheel and the bottom of the shaft means wheel in the same vertical plane, and are in the horizontal position

Set on the machine centerline height 1000mm vertical deviation of less than 2mm accumulated deviation does not exceed 8mm
      Hopper with connectors errors hopper with hopper with connector does not exactly mean combined. While tight side hopper with loose, hopper band edge line is not a straight

line. Working. The hopper with lateral movement to the tight side, deviation occurs, causing the hopper containing material is not sufficient, discharge is not complete, return

Materials increased, decreased productivity, resulting in severe hopper with card edge, torn. At this time should be shut down, fix joints and connected.
      Elevator back to the material means material in the unloading position not fully discharged outside the machine. If the elevator back to the material too much, but there

are local materials hoist machine back seat of the phenomenon. Enhance job. Bound to reduce production efficiency, increase power consumption and material breakage. Causing

material back more

The following reasons:
     Hopper to run too fast Lifting different materials. Rate of about 1 ~ 2m / s; improve bulk materials, the speed of operation is different from the hopper: Average enhance

dry powder and pellets when. Speed ​​of 0.4 ~ 0.6m / s; enhance the moist powder and pellets, the speed of

0.6 ~ 0.8m / speed is too large, early discharge, causing material back. At this time should be based on improvement of materials, appropriate to reduce the speed of the hopper

to prevent back feed.
      Entrance of the discharge head tongue plate device inappropriate. Cause back feed. Should be timely adjusted tongue position, tongue position is too far away from the

hopper discharge. Prevent back feed.
       Hopper is off in production. Will produce abnormal sound, tape falling from the hopper hopper phenomenon. Hopper is dropped. To timely stop to check, otherwise, will lead

to more hoppers deformation, shedding; connection location hopper, hopper band tear. Shedding occurs hopper

The main reasons are: a feed too much feed too much, causing the inside of the base material in the accumulation of resistance increases elevator, hopper runs sluggish, the

occurrence of the hopper off, the direct cause of deformation. You should immediately shut down, out of the base under the flapper, from the plane seat backlog and replacement

of new hopper

, Then drive production. Then reduce the feed rate, and seeks uniformity.
      Inlet position too general. Hopper scooping themselves come from the material inlet. If the feed inlet position is too low, hoist in production. Will result in no time

scooping material hopper, while most of the material into the machine base, causing the hopper scoop materials. The material is massive, it is

Easily lead to deformation of the hopper, fall off. At this time, you should adjust the position of the inlet end of round above the centerline.
       Hopper material is not good. It has a high data requirements, the intensity is limited hopper hoist bearing member. Device should try matching strength good information.

Usually, the hopper with ordinary steel or galvanized sheet metal welding or stamping, folding the edges using galvanized wire or involvement

To enhance the strength of the hopper.
       Boot inside the base does not clear a backlog of material in production. If more boot, often encounter a sudden power failure or other causes shutdown of the phenomenon.

No clear backlog inside the base material, it is easy to cause the hopper by the impact of too big to break off. So, stop and start between

, Must clear the backlog within the frame of physics, to prevent the hopper off. Also, regularly check the hopper and the hopper is firmly connected with, the screws loose, fall

off and the hopper skew, damage and other phenomena, it shall promptly repair or replace, to prevent more accidents happen.

2 条评论:

  1. You did an awesome posting. I am grateful for your offer here. I like your posting and got some thought regarding this post. Best wishes from Bucket Elevators Manufacturers in Hyderabad

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