System for preparation of biogas from domestic garbage

Abstract

The invention discloses a system for preparation 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. The domestic garbage screening box is employed for classification treatment of garbage, the garbage bin transport vehicle is utilized to transfer the garbage to a garbage station, the garbage crushing device crushes the garbage, the crushed garbage is poured into the strawdry 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 by the 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 system for producing biogas 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 producing biogas from garbage has complex structure, low fermentation efficiency, cumbersome operation, and inconvenient assembly, resulting in low production efficiency. Contents of the invention [0004] The object of the present invention is to provi...

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Problems solved by technology

[0003] The reaction system for making biogas from garbage currently used has a complex structure, low fermentation efficiency, cumbersome operation, and inconvenient assembly, resulting in low production efficiency

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