Impurity separation device

Abstract

The invention provides an impurity separation device. The impurity separation device comprises an air pressurization unit, a feeding unit and a separation unit, wherein the air pressurization unit isused for pressurizing gas; the feeding unit is used for loading particles to be separated; the separation unit is used for separating impurities in the particles conveyed by the feeding unit, and comprises a first variable cross-section pipeline, a second variable cross-section pipeline, a third variable cross-section pipeline and a fourth variable cross-section pipeline, the first variable cross-section pipeline, the second variable cross-section pipeline, the third variable cross-section pipeline and the fourth variable cross-section pipeline are spiral, the cross-section diameter of the first variable cross-section pipeline is larger than that of the second variable cross-section pipeline, the cross-section diameter of the second variable cross-section pipeline is larger than that of the third variable cross-section pipeline, and the cross-section diameter of the third variable cross-section pipeline is larger than that of the four variable cross-section pipeline; and collecting units are used for collecting impurities separated from the particles, the collecting units are in one-to-one correspondence with the variable cross-section pipelines, and the impurities in the crop particles can be separated.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, in particular to an impurity separation device. Background technique [0002] Crop particles (such as corn, wheat, etc.) have other impurity particles such as hard particles (stones, etc.), semi-hard particles (mud, etc.), shriveled wheat particles or inconsistent saturation during the harvesting process. These impurity particles As a result, the purity of crop particles is not high, which affects the quality of food in the later stage. [0003] In order to filter out the impurity particles, there are some methods that use static electricity to remove shriveled particles; or use pressure gas horizontal blowing and filtration to remove impurity particles. Both of these methods can only remove some of the crop particles. A type of impurity removal but cannot completely remove impurities in crop particles. Contents of the invention [0004] The impurity separation device provided by the inv...

AI Technical Summary

Problems solved by technology

[0004] The impurity separation device provided by the invention solves the problem that the traditional device can only remove a certain type of impurity in the crop granules but cannot completely remove the impurities in the crop granules, and can separate all the impurities in the crop granules to obtain a comparative pure crop pellets

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