System for production of biogas from domestic garbage and biogas production method

Abstract

The invention discloses a system for production of biogas from domestic garbage. The system comprises: a domestic garbage screening box, a garbage bin transport vehicle, a garbage crushing device, a straw dry anaerobic fermentation device, a biogas storage device, a biogas biological desulfurization device, a biogas pressurization treatment device, a biogas purification device and a biogas refilling tank. The system has the advantages of simple structure, high fermentation efficiency, easy assembly and simple operation, employs the domestic garbage screening box for classification treatment ofgarbage, uses the garbage bin transport vehicle to transfer the garbage to a garbage station, and crushes the garbage with the garbage crushing device, the crushed garbage is poured into the straw dry anaerobic fermentation device for fermentation, fermented biogas is introduced into the biogas storage device for collection, the collected biogas is subjected to desulfurization and dehydration bythe biogas biological desulfurization device, the desulfurized and dehydrated biogas is introduced into the biogas pressurization treatment device for pressurization, the pressurized biogas is purified by the biogas purification device, and the purified biogas is input into the biogas refilling tank.

Description

technical field [0001] The invention relates to the technical field of biogas production from garbage, in particular to a biogas production system from domestic garbage. Background technique [0002] Biogas, as the name implies, is the gas in swampy wetlands. People often see that in swamps, sewers or cesspools, there are bubbles coming out. If we strike a match, it can be ignited. This is the naturally occurring methane. From the perspective of scientific definition, biogas is a kind of combustible gas produced by the fermentation of microorganisms under the isolation of air (reducing conditions) and the appropriate temperature and pH value of various organic substances. [0003] The currently used reaction system for making biogas from garbage has complex structure, low fermentation efficiency, cumbersome operation, and inconvenient assembly, resulting in slow production efficiency. Contents of the invention [0004] The purpose of the present invention is to provide a...

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Problems solved by technology

[0003] The reaction system currently used to produce biogas from waste is complex in structure, low in fermentation efficiency, cumbersome in operation, and inconvenient to assemble, resulting in slow production efficiency

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