Rice seed impurity removal and screening device

Abstract

The invention belongs to the technical field of agricultural planting, and specifically discloses a screening device for removing impurities from rice seeds. The screening device for removing impurities from rice seeds comprises a base, wherein a centrifugation component, a blocking component and a sorting component are arranged on the base; the centrifugation component comprises a central rotating shaft, a top cover and a centrifugation cylinder with an open top; the central rotating shaft is provided with a motor at one end; the bottom of the centrifugation cylinder is fixedly connected withthe central rotating shaft; the centrifugation cylinder comprises an outer cylinder wall and an inner cylinder wall; a discharge opening is formed in the outer cylinder wall; air inlets are formed inthe inner cylinder wall; a ventilation gap is arranged between the inner cylinder wall and the central rotating shaft; multiple groups of fan blades are arranged at the lower portion of the central rotating shaft; the sorting component comprises two accommodation housings, a first partition plate and a second partition plate; and the blocking component is arranged between the accommodation housings and the centrifugation cylinder. When the screening device for removing impurities from rice seeds is used for removing sand and stones, all that is needed is to put shelled rice seeds into water for sand setting and then to dry same, and thus operations are simpler and more convenient.

Description

technical field [0001] The invention belongs to the technical field of agricultural planting, and specifically discloses a rice seed impurity removal and screening device. Background technique [0002] Rice seeds will be mixed with empty shells and sand and gravel. If they are manually screened, not only the work efficiency is low, but also the removal of impurities is not thorough. Some commercially available screening machines have mediocre impurity removal effects, and are expensive and cost-effective. [0003] In order to solve the above-mentioned technical problems, the Chinese utility model patent whose authorization notification number is CN206676520U discloses a rice seed screening device, which includes a casing, a screening box, a feeding hopper and a screen; the screening box is arranged in the casing, and the top of the screening box is connected to the Feeding hopper, the feeding hopper protrudes from the shell, and an inclined screen is installed in the screen...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a rice seed removal and screening device to solve the problem that the existing removal and screening device needs to put all the seeds after removing the shells into water to remove sand and gravel, and the operation is cumbersome and troublesome

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