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Pneumatic conveying - using the air flow conveying grain materials through pipeline
Author£ºniasi Date£º2014-5-24 8:32:37 Source:en.dgniasi.cn
Pneumatic conveying - using the air flow along the pipeline conveying device for grain materials. It has suction type, delivery type and hybrid type. Its working principle is to use the turbulence kinetic energy makes the grain materials in suspended state currents along the pipeline. 1) suction type. After the exhauster starts, a certain vacuum degree appeals in the whole system. Under the pressure difference. the air flow makes the material run into the suction nozzle, and the transporting pipe to the discharge of separator, material separation from the air stream by separating the bottom after discharge, air purification by dust collector before the muffler is discharged into atmosphere. Advantage:simple feeding. It can draw materials from several place at the same time. But the transportation distance is short, the productivity is low and the sealing requirement is high. (2)Compression type.The blower presses the air into the pipeline, and the material is fed from the feeder. The mixture of air and material along the transporting pipe is pressed to discharge, material is discharged after separator, the air is purified by the filter back into the atmosphere. Its characteristics are in contrast to the pumping type.It can send material to several places at the same time. The transmission distance is longer, productivity is high,but the structure is complicated.(3) Hybrid type.It is the combination of the above two forms.
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