Municipal solid waste pyrolysis and gasification process

A technology for municipal solid waste, pyrolysis and gasification, which is applied in the field of municipal solid waste pyrolysis and gasification technology, can solve problems such as troublesome pyrolysis treatment of municipal solid waste, reduce bulk density and moisture content, reduce energy loss, and improve looseness. Effect

Inactive Publication Date: 2017-08-04
GUIZHOU OURUIXIN ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology

[0005] The present invention is intended to solve the probl...

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  • Municipal solid waste pyrolysis and gasification process

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Embodiment 1

[0023] Embodiment 1: municipal solid waste pyrolysis gasification process, comprises the following steps:

[0024] a. Crushing: transport municipal solid waste to the double-shaft coarse crusher for coarse crushing, and the size of the crushed garbage is between 2 and 2.5cm;

[0025] b. Drying and dehydration: transport the crushed municipal solid waste to the biological drying bin for microbial dehydration, put the crushed waste into the biological drying bin from the feeding port, and the agitator can evenly stir the municipal solid waste , so that it is distributed on each stock plate, while stirring, add aerobic bacteria composed of Bacillus subtilis, Bacillus licheniformis, Bacillus macerans, Trichoderma reesei, Paenibacillus, Trichoderma konshii, white mold, The microbial agent composed of EM bacteria, nitrogen-fixing bacteria, phosphorus-solubilizing bacteria and potassium-solubilizing bacteria, after continuous stirring for 5~10 hours, stop stirring, continue to feed o...

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Abstract

The invention discloses a municipal solid waste pyrolysis and gasification process. The municipal solid waste pyrolysis and gasification process comprises the following steps of a, crushing, wherein the size of crushed waste ranges from 2 cm to 2.5 cm; b, drying dehydration, wherein the crushed municipal solid waste is conveyed into a biology drying bin to be subjected to microorganism dehydration, and a microbial agent is used for treatment; c, sorting, wherein the dried waste is sorted into three classes, inorganic matter, gasifiable matter and waste metal; d, respective treatment; and e, waste gas treatment. According to the process, the municipal solid waste is crushed into the specified particle size and then put into the biology drying bin to be treated through the aerobiotic high-temperature-resisting microbial agent, the municipal solid waste is subjected to drying dehydration, the water content is reduced, waste drying is ensured, and sorting treatment of the next step is facilitated; the gasifiable matter is combusted to be used for power generation and heat supply, and energy consumption and treatment cost are further reduced; and by means of the process, large-scale treatment can be achieved, no dioxin gas is generated, the occupied area is not large, the additional value of the municipal solid waste can be increased, and the process is worth of application and popularization.

Description

technical field [0001] The invention belongs to the technical field of garbage treatment, and in particular relates to a process for pyrolysis and gasification of urban domestic garbage. Background technique [0002] At present, the treatment methods of urban waste mainly include landfill, composting, incineration and pyrolysis. Landfilling requires a large amount of land. At the same time, harmful components in garbage will also cause serious pollution to the atmosphere, soil and water sources, which not only destroys the ecological environment, but also seriously endangers human health; composting treatment requires sorting and classification of garbage, requiring high organic content of garbage, and composting The treatment cannot be reduced, and still requires a large amount of land; the essence of incineration is to oxidize organic waste into inert gaseous substances and inorganic non-combustible substances under high temperature and sufficient oxygen supply conditions...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00F23G5/027
CPCF23G5/0273B09B5/00B09B3/10B09B3/45B09B3/40Y02E20/12
Inventor 刘伟刘滨
Owner GUIZHOU OURUIXIN ENVIRONMENTAL PROTECTION TECH
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