Circular Biogas Fermentation System with Multi-zone Biogas Slurry Circulation and Flow Stirring

Abstract

The invention discloses an annular biogas fermentation system with multi-area biogas slurry circulation and stirring. The main body of the biogas fermentation system is composed of an inlet and outlet barrel, an annular fermentation pipeline, and a hydraulic room. The inlet and outlet barrels are vertically connected to the annular fermentation pipeline. Feed pipe and discharge pipe, the feed pipe and discharge pipe are separated by a partition extending vertically to the bottom of the fermentation pipe, the water pressure room is installed on the top of the water pressure room, and the water pressure room is connected to the feed pipe There is a feed pipe drain pipe, a discharge pipe drain pipe is connected between the water pressure room and the discharge pipe, a feed pipe air baffle is set at the connection position between the ring-shaped fermentation pipe and the feed pipe, and the ring-shaped fermentation pipe and the discharge pipe A discharge pipe air baffle is arranged at the connection position, at least one air baffle is arranged between the feed pipe air baffle and the discharge pipe air baffle, and a fermentation zone is formed between adjacent air baffles.

Description

technical field [0001] The invention relates to the technical field of biogas, in particular to a biogas fermentation system. Background technique [0002] With the development of my country's biogas science and technology and the promotion of rural household biogas, according to local use requirements and conditions such as temperature and geology, household biogas digesters include hydraulic pools with fixed arch covers, hydraulic pools with large uncovered covers, etc. There are several styles, but in summary, it is generally formed by four basic types of changes in hydraulic biogas digesters, floating cover biogas digesters, semi-plastic biogas digesters and tank biogas digesters. [0003] The short fermentation of the existing biogas fermentation system results in insufficient fermentation of the fermentation raw materials, and the poor fluidity of the biogas slurry results in uneven distribution of strains and easy sedimentation at the bottom layer, which affects the fe...

AI Technical Summary

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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