A kind of self-flowing air separation grain cleaning device

Abstract

The invention relates to a winnowing type primary cleaning device in grain machinery, in particular to a self-flowing type winnowing gain cleaning device. A box body is of a parallelogram rhombus cubic structure; shutter type air inlets are formed in the front side of the box body; the rear side of the box body is of a bent board structure; J-shaped bent boards are arrayed in a stepped way; the left end and the right end of each J-shaped bent board are fixed on the box body; the middle of each J-shaped bent board is forwards hooked up in a parabolic form; the box body is externally connected with an air drafting and dust removing device through an air scoop and an air duct. The self-flowing type winnowing gain cleaning device has the advantages that grains automatically flow from top to bottom without feeding from an active force; in addition, the grains are fully and upwards thrown under the action of the J-shaped bent board, so that light impurities and dust can be effectively removed. The self-flowing type winnowing gain cleaning device disclosed by the invention has the advantages of simple complete machine structure, small overall dimension, convenience in moving and using, high efficiency, high yield and low cost.

Description

technical field [0001] The invention relates to a sorting device in a grain machine, in particular to a winnowing type grain cleaner. It is suitable for grain deep processing enterprises and primary cleaning and sorting of grain before grain storage. Background technique [0002] Grain sorting equipment is divided into first-level sorting, second-level sorting, and third-level sorting, among which the first-level sorting is also called primary sorting. After the grain is harvested, there are a lot of debris such as weeds, straw, rope ends, bricks, stones, glass fragments, etc., and these debris must be sorted and cleaned before the grain is further processed. The main function of the primary selection equipment is to remove large sundries, chaff, dust, etc. in the grain. Therefore, for primary grain selection equipment, basically every grain depot must be equipped. Screening is divided into winnowing type, screening type and gravity sorting type, and the utility model is ...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing winnowing-type grain primary selection equipment is generally composed of a large flat screen and winnowing equipment. The equipment is very large and complex in structure. It is very inconvenient to operate and use in different warehouses, and it is difficult to move; During the free fall process, the effect of fully flying cannot be achieved, so the sorting efficiency is low

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