Process for incinerating household garbage by use of steelmaking convertor

Abstract

The invention discloses a process for incinerating household garbage by use of a steelmaking convertor. The process comprises the following steps: (1) sorting of to-be-treated household garbage: recycling metal garbage in a classified manner, dehydrating other garbage, and compressing and packaging the dehydrated garbage, thereby obtaining a garbage package to be fed into the steelmaking convertor; (2) material feeding: feeding steel scrap, molten iron, a slagging material and the obtained garbage package into the steelmaking convertor; (3) smelting and incineration: performing incineration treatment at high temperature of 1300-1600 DEG C generated in a smelting process of the steelmaking convertor; (4) fume purification: purifying fume and dust generated during smelting and incineration through a dust removing system; (5) slag treatment: adding molten garbage generated during garbage incineration into slag of the steelmaking convertor for water quenching, feeding the quenched mixture into a steel slag recycling system of the steelmaking convertor, recovering iron-containing materials, and producing cement by use of the remaining materials. Through adoption of the process, the household garbage can be efficiently treated, and the treatment is low in cost and free from secondary pollution, so that the natural harmony between steel mills and the urban environment can be facilitated.

Description

technical field [0001] The invention relates to a process for incinerating domestic garbage by using a steelmaking converter, and belongs to the technical field of garbage treatment. Background technique [0002] At present, the domestic waste treatment methods in my country mainly include landfill, incineration, composting and pyrolysis. Among them, the landfill method has the disadvantages of large area and easy to produce harmful leachate; the incineration power generation method is currently the main waste disposal method, but the incineration temperature is generally about 900 ° C, which is prone to produce dioxin-like highly toxic substances, and There are also more impurities produced after garbage incineration; the disadvantage of the composting method is that it cannot process plastics, textiles and other non-decomposable substances, and it will also release some harmful greenhouse gases; the pyrolysis method heats the garbage in an oxygen-free environment to make t...

AI Technical Summary

Problems solved by technology

However, the processing object of this process is only waste plastics, and it uses the viscosity of waste plastics. It is not applicable to other types of domestic waste, such as kitchen waste, plant fiber, etc.

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