Method performing microwave pyrolysis on garbage

Abstract

The invention discloses a method for performing microwave pyrolysis on garbage. The method comprises the following steps of: 1) pretreating the garbage to obtain structured garbage which is suitable for microwave pyrolysis; 2) performing microwave pyrolysis on the garbage, namely introducing pyrolysis gas out of a pyrolysis gas outlet of a microwave pyrolysis device, continuously outputting pyrolysis solid products from a pyrolysis solid residue discharge port on the microwave pyrolysis device, sealing the rest parts of the microwave pyrolysis device except a garbage inlet, the pyrolysis solid residue discharge port and a pyrolysis gas outlet to prevent the pyrolysis gas from being leaked and preventing external air from entering the microwave pyrolysis device to ensure that the pyrolysis gas is used as protective gas for pyrolysis reaction; and 3) recovering pyrolysis products, namely treating according to the pyrolysis products. The method has the characteristics of rapidness and high efficiency, low energy consumption, low cost, high resource utilization rate, simplicity in operation, high garbage volume reduction rate, capacity of obviously reducing damage of garbage to environment and the like; and by the method, innocent treatment of the garbage can be realized really.

Description

technical field [0001] The invention relates to a garbage treatment technology, in particular to a treatment technology for high-temperature pyrolysis of garbage into gas, liquid and solid residues based on microwave heating, and belongs to the technical field of garbage treatment and resource utilization. [0002] Background technique [0003] With the increasing level of urbanization, municipal solid waste disposal has become a worldwide problem. There are three main ways to deal with garbage: landfill, incineration and composting. Landfill method: the biggest advantage is that the treatment cost is relatively low, and the practical value gradually decreases due to environmental pollution and occupation of a large amount of land resources; composting method: the treatment cost is low, but the composting process is difficult to control, and there is a greater risk of secondary pollution to the environment Incomplete utilization of organic matter, complex fertilizer compon...

AI Technical Summary

Problems solved by technology

[0006] Although some foreign treatment methods have been introduced in recent years, they are not suitable for the garbage characteristics of "high humidity and high cabinet residue" in my country.