Gravity impurity removing box for grain recleaner screen

Abstract

The invention relates to the field of grain recleaner equipment, in particular to a gravity impurity removing box for a grain recleaner screen. The gravity impurity removing box comprises an impurity removing box body and a centrifugal fan. The centrifugal fan is arranged at the bottom of the impurity removing box body. A screen net, a grain outlet nozzle, an impurity removing nozzle, reinforced grid plates, a baffle plate and a grain control plate are arranged in the impurity removing box body. By means of mutual cooperation of the components during production, the screen net is prevented from being blocked, the air volume distribution of all sections of a screen face tends to be reasonable, and the impurity removing and separating effect is improved; and therefore the problems that in the prior art, screen holes of a grain recleaner gravity screen are prone to being blocked, cleaning is hard, and consequently the screening effect is poor, and screening efficiency is low are solved. The gravity impurity removing box is simple in structure, convenient to operate and good in whole machine use effect, the performance of the grain cleaning equipment is improved, and the productivity and screening quality of the grain recleaner gravity screen are effectively improved.

Description

Technical field: [0001] The invention relates to the field of grain selection equipment, in particular to a specific gravity sorting box of a grain selection screen. Background technique: [0002] At present, most grain selection specific gravity screens use fish scale screens. Fans are installed in the lower part to adjust the wind power of different sections of the screen surface to separate light debris from grains. Use the principle of specific gravity to reduce moldy seeds, light impurities, and large and small impurities. Discharged from the outlet, perfect grains and high-density impurities are sent from the outlet to grade screening. Due to the unreasonable structure of the prior art, the air volume adjustment of each section of the screen surface is not ideal, the separation of impurities is not complete, and most of the fine particles of impurities stay on the screen surface and block the screen holes. In order to ensure the normal operation of the equipment, it is nec...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned defects in the prior art, the present invention provides a specific gravity miscellaneous box of a grain selection sieve. The interior of the miscellaneous box is equipped with a reinforced grid plate, a baffle plate and a grain control plate, and these components cooperate with each other during production to achieve Avoid the clogging of the screen, make the distribution of air volume in each section of the screen surface more reasonable, improve the separation effect of impurities, and effectively improve the productivity and screening quality of the grain selection gravity sieve, so as to solve the problem of the grain selection gravity sieve in the prior art Easy to block and difficult to clean, resulting in poor screening effect and low screening efficiency

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