Spiral pneumatic pump working principle of the definition and

Spiral pneumatic conveying pressure feed pump is a pneumatic heavy duty conveyor equipment for the material can be used to transport cement, raw materials, coal, fly ash and other

powdered materials, transmission distance of 200m, the compressed air pressure of 0.2-0.4MPa. Aspirated pressure pneumatic Power Roller Conveyor equipment belonging to the high-voltage

transmission equipment.
Spiral pneumatic pump with cantilever arm-and-two types, each pair into a single pipe and double pipe screw pump two kinds.
The right part of the screw shaft with spiral, helix mounted in the sleeve, the left portion mounted in the bearing box, the end portion connected to the motor through the

coupling, speed 900-1000r/min. Material from the inlet port to join spiral, pushed to the discharge port, unloading into the mixing chamber. Lower loading of the mixing chamber

There are two rows of nozzles, the compressed air through the nozzle boxes from the spray nozzle into the mixing chamber, mixing with the materials and into the pipeline.
Mixing chamber air pressure is higher, likely to cause material along the helical gas inlet port and the sleeve to the back. To prevent backflow of gas feed, variable pitch

spiral coil manufactured, pitch direction gradually decreases towards the material, the material feed inlet orifice pitch pitch smaller than 30%, so that the material inside the

spiral is gradually

Tight squeeze in the discharge port formed dense material bolt, you can prevent the gas feed back. In order to ensure a certain degree of dense material bolt and prevent

inadequate or interrupted the feed gas feed back, in the discharge port is equipped with valves, valve arm hinged valve, the valve arm is fixed to the shaft, the shaft ends

protruding machine

In addition, and equipped with lever and weight, so that the valve on the discharge port to maintain a certain pressure. When the bolt material pushed to live relatively close

to the top to open the unloading valve in the feed inadequate or interrupted, the valve then promptly closed.
In order to prevent the intrusion of material feed inlet bearing, air sealing tube to pass into the air bearing, the formation of "air sealing."
Arm Spiral pneumatic pump as shown. It cantilevered spiral pneumatic pump is the main difference with a screw shaft supported at both ends, eliminating the spiral at the

discharge end of the swing, tend to reduce the wear sleeve and screw and removed the material outlet valve. In order to prevent the material

Entering the bearing, the bearing with compressed air to form a gas seal.
Spiral pneumatic pump The main advantage is that in the high pressure continuous-feed; throughput is easy to control, simple structure, compact structure, body height is small.

Can be used for continuous transportation of materials, and can be transported in the 0-100% of rated capacity under variable transmission, transportation process without

pulsation, throughput up to several

One hundred tons, transported in the same amount under the premise of its smallest.
Its main drawback is the power consumption, supply and consumption of compressed air power almost equal; screw and bushing wear quickly, maintenance workload, demands for long-

distance transport large amounts of process system should not be used.