Multistage wind power type plastic garbage dry-wet separation method

Abstract

The invention relates to the technical field of dry-wet separation, particularly to a multistage wind power type plastic garbage dry-wet separation method. The uses equipment comprises a sorting box,wherein a material inlet is formed in the top of the sorting box, a spiral feeding mechanism is arranged at the top of the sorting box, a first material outlet is formed in one side of the bottom of the sorting box, a second material outlet is formed in the other side of the bottom of the sorting box, a first wind suction and supply device is arranged between a first gas inlet and a first gas outlet, a second wind suction and supply device is arranged between a second gas inlet and a second gas outlet, and a third wind suction and supply device is arranged between a third gas inlet and a thirdgas outlet. According to the invention, by using the fully-closed structure, the gas flow is in an internal circulation mode, so that the outward diffusion of poisonous and harmful gas is avoided; through three-stage gas flow sorting, the contact time of garbage and gas flow is prolonged; and through the matching adjustment of the spiral feeding mechanism and the wind suction and supply devices,the classification treatment of different types of garbage and garbage with different water contents can be met.

Description

Background technique [0001] Plastic waste is an important part of domestic waste. Due to its large amount, it takes a long time for natural degradation. At present, most of them are disposed of by incineration and landfill. Before incineration and landfill, in order to reduce the generation of harmful gases and reduce the utilization rate of landfill land, plastic waste is often shredded first. However, due to the production of plastic waste and the process of open-air stacking, the moisture in domestic waste, the immersion of rainwater and other factors cause the waste to be in a state of dry and wet mixing before crushing, and wet waste generally needs to be squeezed before crushing. In order to remove the excess water and prevent the harmful landfill leachate from polluting the groundwater. For this kind of dry and wet mixed garbage, the current common practice is to treat them all as wet garbage, and all of them enter the extrusion process. This extensive non-classified t...

AI Technical Summary

Problems solved by technology

For this kind of dry and wet mixed garbage, the current common practice is to treat them all as wet garbage, and all of them enter the extrusion process. This extensive non-classified treatment method increases the workload of extrusion processing, and at the same time, The polluted liquid produced during the extrusion process will contaminate the dry garbage, which will expand the pollution instead.

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