Super-efficient fermentation system for promoting biogas slurry convective stirring by virtue of synchronous fermentation

Abstract

The invention discloses a super-efficient fermentation system for promoting biogas slurry convective stirring by virtue of synchronous fermentation. The super-efficient fermentation system comprises a primary fermentation system and a secondary fermentation system, wherein the mounting position of the secondary fermentation system is higher than that of the primary fermentation system; the primary fermentation system is connected with the secondary fermentation system by virtue of a water guide pipe; a water guide pipe is connected between a secondary feed pipe and / or discharge pipe and a primary fermentation pipeline; a water guide pipe is connected between a water pressure chamber and the primary fermentation pipeline; and the primary fermentation system adopts an annular fermentation pipeline, the fermentation route is long, and the synchronous fermentation of the primary fermentation system and the secondary fermentation system promotes biogas slurry to flow circularly in the system, so that stirring of the biogas slurry is effectively promoted, the uniform distribution of strains is driven, and the fermentation efficiency in the system is improved.

Description

technical field [0001] The invention relates to a biogas fermentation system, in particular to a multistage biogas fermentation system. Background technique [0002] Biogas, the chemical name; methane, as the name implies, is the gas in the swamp; with the development of biogas science and technology in China and the promotion of household biogas in rural areas, according to local use requirements and conditions such as temperature and geology, household biogas pits have fixed arch cover water pressure Type pool, large uncovered hydraulic pool, hanging pipe hydraulic pool, meandering cloth hydraulic pool, top return hydraulic pool, separated floating cover pool, semi-plastic pool, all-plastic pool and tank pool. Although there are various forms, they are generally formed by four basic types of changes: hydraulic biogas digesters, floating cover biogas digesters, semi-plastic biogas digesters and tank-type biogas digesters. [0003] The existing biogas still has many proble...

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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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