Dust prevention device based on electromagnetic shielding

Abstract

The invention discloses a dust prevention device based on electromagnetic shielding. The dust prevention device comprises a dust prevention frame body fixed to a frame body of a color sorter; a dust prevention glass plate is fixed to the dust prevention frame body; and one surface of the dust prevention frame body directly faces a detection lens of a detection device of the color sorter, and a charge pump is fixed to the other surface of the dust prevention glass plate. The dust prevention glass plate is arranged on the end face of the detection lens, the charge pump is fixed to the dust prevention glass plate, the periphery of the glass plate is positively charged through the effect of the charge pump, positively-charged dust cannot adhere to the glass plate because two like polarities repel each other, negatively-charged dust falls directly because of charge neutrality, accordingly dust prevention of a detection element of the color sorter is achieved, and the color sorting quality and efficiency are improved; and meanwhile, frequent dust clearing is avoided, so that labor intensity is reduced, and the service life of the color sorter is prolonged.

Description

technical field [0001] The invention belongs to the field of color sorters and relates to a dust-proof device based on electromagnetic shielding. Background technique [0002] When the color sorter selects fine materials, the materials enter the collecting hopper through the conveying device, and then enter the sorting device through the slideway. During this period, the materials will rub against each other to generate dust, which will adhere to the glass surface and affect the color. The color sorting effect of the machine, and the accumulation of dust for a long time requires regular cleaning of the dust to increase the work intensity of the color sorting, and the dust adheres to the detection lens through the glass plate, which will reduce the service life of the lens and increase the cost of color sorting . Contents of the invention [0003] The object of the present invention is to provide a dust-proof device based on electromagnetic shielding. The device is provide...

AI Technical Summary

Problems solved by technology

[0002] When the color sorter selects fine materials, the materials enter the collecting hopper through the conveying device, and then enter the sorting device through the slideway. During this period, the materials will rub against each other to generate dust, which will adhere to the glass surface and affect the color. The color sorting effect of the machine, and the accumulation of dust for a long time requires regular cleaning of the dust to increase the work intensity of the color sorting, and the dust adheres to the detection lens through the glass plate, which will reduce the service life of the lens and increase the cost of color sorting

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