Method for producing methane by using tower type super-efficient fermentation system capable of promoting feeding by virtue of multistage linkage

Abstract

The invention discloses a method for producing methane by using a tower type super-efficient fermentation system capable of promoting feeding by virtue of multistage linkage. The method comprises the following steps: pouring a fermentation raw material into a feed cylinder of a first-stage fermentation system and a second-stage feed pipe of a second-stage fermentation system; performing fermentation in the first-stage fermentation system to generate biogas, and accumulating the biogas in a fermentation zone formed between side walls of feed and discharge cylinders and adjacent gas baffle plates or between the adjacent gas baffle plates; extruding a biogas slurry in a first-stage fermentation pipeline to ensure that the biogas slurry flows towards a first water guide pipe, rises along with the first water guide pipe, and unidirectionally flows into a second-stage fermentation pipeline by virtue of the first water guide pipe; performing fermentation in the second-stage fermentation system to generate biogas, and accumulating the biogas in a fermentation zone formed between side walls of feed / discharge pipes and adjacent gas baffle plates or between the adjacent gas baffle plates; and extruding a biogas slurry in a second-stage fermentation pipeline to ensure that the biogas slurry flows towards the second-stage feed pipe, the second-stage discharge pipe and a drain pipe of a bacterium distributor, and unidirectionally flows into a water pressure chamber by virtue of the discharge pipe and the drain pipe.

Description

technical field [0001] The invention relates to a biogas fermentation system, in particular to a multistage biogas fermentation system. Background technique [0002] Biogas, chemical name; methane, as the name suggests, is the gas in the swamp; with the development of biogas science and technology in China and the promotion of domestic biogas in rural areas, according to local use requirements, temperature, geology and other conditions, domestic biogas digesters have a fixed arched water pressure Type pool, large uncovered water pressure pool, hanging pipe water pressure pool, meandering cloth water pressure pool, top return water pressure pool, separate floating cover pool, semi-plastic pool, full plastic pool and tank pools. Although there are various forms, they are generally formed by the four basic types of hydrostatic biogas digesters, floating hood biogas digesters, semi-plastic biogas digesters and tank biogas digesters. [0003] The existing various biogas still h...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing biogas fermentation efficiency is low, the biogas convection effect is poor, the fermentation route is short, and the utilization rate of fermentation raw materials is low.

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