Method for producing methane by using methane generation system with hydraulic biogas slurry curved flow and stirring

Abstract

The invention discloses a method for producing methane by using a methane generation system with hydraulic biogas slurry curved flow and stirring. The method comprises the following steps: pouring a fermentation raw material into a fermentation pipeline from a feed pipe, and performing fermentation in the fermentation pipeline to generate methane, wherein methane is gathered in fermentation zones between feed / discharge pipes and adjacent gas baffle plates or between the adjacent gas baffle plates respectively, occupies the spaces in the fermentation zones and extrudes biogas slurry to perform convection, the biogas slurry flows to the feed pipe, the discharge pipe and a bacterium distribution device, the biogas slurry in the fermentation pipeline flows into a water pressure room unidirectionally by virtue of drain holes of the discharge pipe along with the rising of the liquid level of the biogas slurry in the feed pipe, the discharge pipe and the bacterium distribution device, and when the liquid level of the biogas slurry in the water pressure room reaches the lowest position of a drain pipe of the bacterium distribution device, the biogas slurry flows into the water pressure room unidirectionally by virtue of the drain pipe of the bacterium distribution device; and when methane stored in any one of the fermentation zones is used, the gas pressure of the methane stored in the fermentation zone is lowered, the biogas slurry in adjacent fermentation zones flows into the fermentation zone, and the biogas slurry stored in the water pressure room unidirectionally flows back into the fermentation pipeline by virtue of drain holes of the feed pipe to supplement the reduced methane space, so that the circulation flow of the biogas slurry is finished.

Description

technical field [0001] The invention relates to the technical field of methane, in particular to a methane fermentation system. Background technique [0002] According to statistics, the current problem of methane in our country has reached about 3 million. The existing problems are: 1. Unreasonable materials used, resulting in serious air and water leakage in the pool body; 2. The mechanical performance of the methane pool is not good, reducing methane The structural strength of the pool causes wide structural cracks inside the pool body; 3. The connection between the inlet / outlet pipe and the pool body is bent, cracked, or even broken, and the shearing causes serious water and air leakage in the methane pool; 4. , The fermentation route of the methane pool is short, the efficiency of gas production is low, it is easy to crust, it is difficult to clean, and a large number of waste pools are generated. Contents of the invention [0003] The technical problem to be solved ...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the fermentation route in the methane fermentation system is short, the self-circulation effect of the biogas slurry is poor, and the uneven distribution of bacteria in the biogas slurry affects the gas production rate

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