High-voltage electrostatic separator for recycling farmland plastic film residues

Abstract

The invention provides a high-voltage electrostatic separator for recycling farmland plastic film residues. The separator comprises a discharging hopper, a conveying device and a box body, the conveying device is obliquely arranged, the discharging hopper is arranged at the feeding end of the conveying device, the discharging end of the conveying device is arranged above the box body, and a friction electrification device is arranged between the discharging hopper and the feeding end. An electrostatic sorting device is arranged between the discharging end and the box body and comprises a high-voltage electrostatic generator, a sorting roller and an electrostatic eliminating brush, and discharging protruding thorns are evenly distributed on the outer roller wall of the sorting roller. The high-voltage electrostatic separator adopts a high-voltage electrostatic adsorption principle to sort the plastic film residues, the plastic film residues, stubbles and the like are subjected to friction electrification and then pass through an electric field, and the high-voltage electrostatic field is utilized to perform graded adsorption on broken plastic films and realize sorting, so that secondary processing and utilization of the plastic film residues are facilitated.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery in the field of agricultural environmental protection, and in particular relates to a high-voltage electrostatic separator for recycling farmland residual film. Background technique [0002] Plastic film mulching cultivation technology was introduced into my country in the late 1970s. It can not only improve ground temperature, conserve fertilizer, water, and adjust light, but also prevent insects and drought. The considerable economic benefits make it quickly popularized in China. However, due to the limited understanding of plastic film at the beginning, there is no corresponding recycling system after large-scale promotion, which has caused certain damage to the soil environment and caused residual film pollution, which is not conducive to the sustainable development of my country's agriculture. However, it is very difficult to recycle the residual plastic film, and it is difficu...

AI Technical Summary

Problems solved by technology

However, due to the limited understanding of plastic film at the beginning, there is no corresponding recycling system to correspond to it after large-scale promotion, which has caused certain damage to the soil environment and caused residual film pollution, which is not conducive to the sustainable development of my country's agriculture.

However, it is difficult to recycle the residual plastic film, and it is difficult to sort the mixture of residual plastic film and stubble after recycling, the economic benefit is low, and the enthusiasm for recycling is poor.

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