Method for Promoting Biogas Generation System with Evenly Distributed Bacterial Species by Bacteria Spreading Device

Abstract

The invention discloses a method for producing biogas by use of a biogas generation system with a bacterium distributor for promoting even distribution of bacteria. The method comprises the following steps that: fermentation raw materials are poured into a U-shaped fermentation pipeline via a feed pipe and fermented to produce biogas, the biogas is gathered in the space between a feed pipe gas baffle plate and a discharge pipe gas baffle plate in the U-shaped fermentation pipeline so as to occupy the space in the fermentation pipeline and push the biogas slurry in the fermentation pipeline to flow into the feed pipe, the discharge pipe and the bacterium distributor and further flow into a water pressure chamber unidirectionally via a discharge pipe drain hole and flow into the water pressure chamber via the drain pipe of the bacterium distributor; and when the biogas stored in the fermentation pipeline is output to the outside via a gas collecting pipe, the pressure of the biogas in the fermentation pipeline drops and the biogas stored in the water pressure chamber unidirectionally flows into the fermentation pipeline via the feed pipe drain hole and returns to the fermentation pipeline via the drain pipe of the bacterium distributor, and therefore, circular flow of the biogas slurry is completed.

Description

Technical field [0001] The invention relates to the technical field of biogas, in particular to a biogas fermentation system. Background technique [0002] China's biogas originated in the 1970s and has a history of nearly 40 years. It has experienced three stages of ups and downs. The period from 1971 to 1981 was the stage of rapid development and decline; the period from 1981 to 1991 was the stage of adjustment and emphasis on science and technology; 1991 The period from 2000 to 2000 was the stage of recovery and benefit highlighting; the period from 2001 to 2009 was the stage of comprehensive improvement and rapid development; after 2009, it tended to fall. [0003] Looking back on the ups and downs of China's biogas development, we fully analyzed the existing problems of China's biogas (household use): 1. The structure of the biogas fermentation part is unreasonable, and the pool-type fermentation system in the 1980s is being promoted. It is difficult to feed in, difficult to ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the fermentation route in the biogas fermentation system is short, the biogas slurry self-circulation effect is poor, and the uneven distribution of bacteria in the biogas slurry affects the gas production rate

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