Advantages and disadvantages of pneumatic conveying systems
Pneumatic conveying systems and other solid delivery systems, such as belt conveyors, screw conveyors and other vibrations and compare their advantages and disadvantages are as
a. All solid conveying equipment and pneumatic conveying systems, pneumatic conveying systems may be small particles of solid material continuously conveyed the most suitable
method, also suitable for intermittently to large quantities of particulate material from the tanker, rail vehicles and cargo transported to silos .
b. Pneumatic conveying system designed for full use of space with excellent flexibility. Conveyor belt and transported in essentially only one direction, if you need to change
the direction of transport of materials or promotion, you must have a transit point and need to have a second separate conveyor to pick up
. Pneumatic conveyors can be up, down or around the building a large delivery of materials and equipment and other obstructions that can make up or avoid other duct space
occupied by the operating device.
c. Pneumatic conveying system used by a variety of solid material conveying pumps, flow distributor and the receiver is very similar to the fluid operation of the device, so
most pneumatic conveyors are easily automated by a center console operator. The operator can save the cost.
d. And other solid material handling methods, pneumatic conveyors fire and explosion risk is small, it has safety advantages. Complete pneumatic conveying system application can
save premiums because of reduced damage and fire hazard.
e. A design better pneumatic conveying systems often are clean and eliminate pollution of the environment. In the case of the vacuum conveying system, any leakage of air is
inward, vacuum and pressurized both devices are fully enclosed and sealed monomers can thus contamination of materials
Limited to a minimum. Dust control point should be the main feeder import and export of solid collector can be designed into a dust-free operation.
a. And other bulk solids material handling equipment compared to pneumatic conveying system power consumption higher fees (means and mechanical conveyor systems required per ton
of material transported highest power).
b. Use is restricted. Pneumatic conveying system can only be used to transport must be relatively dry, abrasive, sometimes need to be able to free-flowing materials. Typically,
if the end product not broken, the brittle, easy fragmentation of the product is not suitable for pneumatic roller conveyor.
Unless it is specially designed equipment, or hygroscopic and caking of material, it is inappropriate to use pneumatic conveying systems transport. Easily oxidized materials
suitable for conveying air, but can be recycled back with a gas inert gas instead of air. Because the pipeline, fans and other components
Contact with the material can easily be abrasive and damage.
c. Transmission distance is limited. So far, pneumatic conveying systems can only be used for relatively short transport distance, generally less than 3000 m. Design of long
transmission lines in the design of its main obstacle is the difficulties encountered along the pump station.
d. Small changes in material properties (such as bulk density, particle size distribution, hardness, angle of repose, abrasive resistance, explosion potential) can cause