Method for generating methane by means of cylindrical organic garbage anaerobic fermentation treatment system

Abstract

The invention discloses a method for generating methane by means of a cylindrical organic garbage anaerobic fermentation treatment system. When fermentation raw materials are fermented in a fermentation pipeline to generate biogas, the biogas is accumulated in a gas storage plate, as the biogas pressure is gradually increased, biogas slurry in the fermentation pipeline is extruded to flow to a feed pipe, a discharge pipe and a disturbed flow interval, the biogas level in the feed pipe, the biogas level in the discharge pipe and the biogas level in the disturbed flow interval are gradually increased, and when the biogas level in the disturbed flow interval reaches a feed pipe end exhaust pipe and a discharge pipe end drainage pipe, the biogas slurry in the disturbed flow interval flows into a water pressure chamber through the feed pipe end exhaust pipe and the discharge pipe end drainage pipe.

Description

technical field [0001] The invention relates to the field of new energy and fermentation, in particular to a biogas fermentation system. Background technique [0002] The air guide pipes of the existing biogas fermentation systems are mostly made of concrete and fixed on the top of the gas storage plate, and the surrounding air tightness is not high, and the surrounding air leakage is difficult to block; In the process of decay, it is easy to breed various insects, and the insects climb into the airway and cause blockage, which is difficult to clean; when there is water in the airway, it is difficult to discharge; the most prominent problem is that when the airway is broken, it is difficult to replace it Lead to the scrapping of the entire biogas fermentation system. [0003] The biogas storage space of the current hydraulic biogas fermentation system refers to the area between the gas baffles of the feed pipe and the gas baffles of the discharge pipe arranged at both ends ...

AI Technical Summary

Problems solved by technology

[0002] The air ducts of the existing biogas fermentation systems are mostly poured with concrete and fixed on the top of the gas storage plate, and the airtightness of the surrounding is not high, and the surrounding air leakage is difficult to block; since the fermentation raw materials of the biogas digester are mostly livestock manure, manure During the decay process, various insects are easy to breed. Insects crawl into the airway tube and cause blockage, which is difficult to clean; when there is water in the airway tube, it is difficult to discharge; the most prominent problem is that when the airway tube is broken, it is difficult to replace and can be Lead to the scrapping of the entire biogas fermentation system

[0003] The biogas storage space of the current hydraulic biogas fermentation system refers to the area between the gas baffles of the feed pipe and the gas baffles of the discharge pipe arranged at both ends of the fermentation pipeline. When the stored biogas is not used for a long time, the storage The biogas overflows from the bottom of the feed pipe air baffle and the discharge pipe air baffle, and enters the air, resulting in waste; the existing biogas storage space is limited

[0004] The most important factors affecting biogas fermentation efficiency and gas production are fermentation raw materials, strains, and temperature. When the fermentation raw materials and strains are evenly distributed, microorganisms can fully decompose the fermentation raw materials, produce more biogas and make the temperature in the biogas storage chamber increase to further promote fermentation; in the existing biogas fermentation system, due to the poor fluidity of the biogas slurry, a large amount of fermentation raw materials accumulate at the feed pipe, and after long-term fermentation, the biogas slurry containing a large number of bacteria mainly accumulates at the discharge pipe As a result, the distribution of fermentation raw materials and strains in the fermentation system is uneven, which inhibits the fermentation efficiency and reduces the gas production.

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