Method for separating domestic garbage

Abstract

The invention discloses a method for separating domestic garbage. The method comprises the following steps of: after the bag in which the domestic garbage is filled is broken, conveying the domestic garbage onto a conveying belt, and picking up the metal and glass in the domestic garbage; performing magnetic separation on the garbage in the step; performing gradient separation on the residual domestic garbage, and distributing the residual domestic garbage into discharging holes with the particle size of less than 40 mm, the particle size of between 40 and 80 mm, and the particle size of more than 80 mm; separating the domestic garbage of which the particle size is more than 80 mm in the step by using a separator; and performing biological dehydration on the domestic garbage with the particle size of between 40 and 80 mm, and striking the treated domestic garbage with the particle size of between 40 and 80 mm by using a baffle plate in a baffle plate type rotary screen. The process is simple and is easy to control, and solves the problem of low separation efficiency caused by high moisture content and complex components of Chinese domestic garbage; and by the process, the recyclable substances in the domestic garbage are extracted, so the process has large economic benefit, environmental benefit and social benefit.

Description

technical field [0001] The invention belongs to the field of domestic waste resource utilization and relates to a domestic waste sorting method. Background technique [0002] With the continuous advancement of reform and opening up, my country's economy has developed rapidly, the process of urbanization has continued to accelerate, and the number of cities has continued to increase. Now there are more than 700 cities in my country. With the increase of urban economy, population, and the number of cities, the amount of domestic waste is also increasing. In 2008, the amount of domestic waste in my country was 168 million tons per year. In addition, there are more than 2,300 counties in my country. The amount of domestic waste No statistics, estimated annual output of 0.5-0.6 million tons. [0003] Among these huge amount of domestic waste, most of them are landfilled, supplemented by other disposal methods such as incineration and composting. From the perspective of resource r...

AI Technical Summary

Problems solved by technology

Due to the characteristics of complex components and high water content of domestic waste, the metal, plastic, glass, and compostable materials in the waste cannot achieve a good separation effect, so it cannot be copied

However, after entering the Chinese market, some foreign technical equipment cannot adapt to the characteristics of domestic waste in our country, nor can it be copied

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