Next, let's briefly introduce the main structural components of the air jet rice mill, so that everyone can better understand how it completes its work.
Feeding section: feeding hopper and feeding gate.
Whitening parts: grain wings, sand rollers, bran screens, rice wings, adjustment handwheel, outlet gate, rice nozzle, etc.
The bran removal part consists of a belt pulley, an electric fan, a bran remover, a wind speed regulating plate, a bran outlet, etc. The efficiency of bran extraction is controlled by adjusting the exhaust air volume.
The column type air jet rice mill is a high-speed light rolling model, with roller angular velocity generally between 10-15 m/s and an average bearing capacity of 5 kPa for raw materials. During work, raw materials are fed from the silo into the grinding chamber. Under the high-speed operation of the rollers, the outer skin of the raw materials is removed and re ground white. The ground particles are discharged from the body through the rice nozzle. The shell skin and bran residue that slip off during the entire process of raw material whitening are discharged through a circular hole screen outside the whitening chamber, and the remaining part is sucked away by the cyclone after being discharged from the whitening chamber along with the grain particles. The bran is sent out of the machine body twice by a centrifugal fan.
The working pressure of the milling chamber of the air jet rice mill is low, resulting in less broken rice. However, the husk of the grain will be ground unevenly. Depending on the actual situation, sometimes larger grains are selected and then subjected to secondary or tertiary whitening until satisfactory. The efficiency of grain whitening is determined by the cooperation between the grain wings and the inlet gate, the clearance between the whitening chamber, and the operating speed of the equipment. The specific steps can be determined based on the wet zone conditions of the raw grain and the grinding regulations to determine the number of production and processing passes.
The main structural components of the air jet rice mill introduced above can be understood. Different specifications and models may vary!
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