A method for producing biogas in a fermentation system with evenly distributed strains driven by turbulent flow of biogas slurry in multiple regions

Abstract

The invention discloses a method for generating marsh gas in fermentation system driving even distribution of strains by multi-zone marsh liquid turbulence. The method comprises the following steps that: fermentation raw materials are poured into a feeding pipe, when a fermentation zone formed between a feeding / discharging pipe sidewall and a gas blocking plate or a fermentation zone formed between the adjacent gas blocking plates in a ring-shaped fermentation pipeline generates marsh gas, the marsh liquid is pushed to flow to the adjacent fermentation zone, and is further pushed into the feeding pipe, the discharging pipe and a strain distribution device; when the fermentation is full of the marsh gas, the marsh gas generated by further fermentation flows to the adjacent fermentation zones which is not full, until each fermentation zones is intercommunicated; when the liquid level of the marsh liquid in the ring-shaped fermentation pipeline reaches the lowest position of the sidewall of the feeding pipe or the discharging pipe, the marsh gas generated by further fermentation overflows from the fermentation system and is discharged into the atmosphere.

Description

technical field [0001] The invention relates to a novel energy generating device, in particular to a fermentation system in the technical field of biogas. Background technique [0002] The hydraulic biogas digester type has the following advantages: (1) The structure of the pool body has good mechanical performance, and makes full use of the bearing capacity of the soil, so it saves labor and materials, and the cost is relatively low; (2) It is suitable for filling a variety of fermentation Raw materials, especially a large amount of crop stalks, are very beneficial to the accumulation of manure in rural areas; (3) To facilitate frequent feeding, toilets and pig pens can be built on the biogas digester, and feces can be cleaned into the pond at any time; (4) Surrounding the biogas digester Contact with the soil has a certain effect on the heat preservation of the pool body. [0003] Since there is no stirring device in the hydraulic biogas digester, the scum in the tank is ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the traditional biogas fermentation system has a short fermentation route, and the poor fluidity of the biogas slurry leads to uneven separation of strains and easy crusting, and incomplete fermentation of fermentation materials, etc.

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