Method for producing methane by virtue of dual-tube passage-type methane generation device with biogas slurry convective stirring function

Abstract

The invention discloses a method for producing methane by virtue of dual-tube passage-type methane generation device with a biogas slurry convective stirring function. According to the method, fermenting raw material is poured inside a fermenting system and fermented to produce methane, methane is respectively gathered inside fermentation zones formed between the side wall of a material inlet / outlet pipe and adjacent air baffle plates or the fermentation zones formed between adjacent air baffle plates so that the methane pressure inside the fermentation zones is increased to push the biogas slurry from a fermenting pipeline to flow towards the material inlet pipe and the material outlet pipe material, the biogas slurry levels in the material inlet pipe and the material outlet pipe continuously rise, and when the lowest point position of the material inlet pipe drainage pipe is firstly reached, the biogas slurry levels in the material inlet pipe and the material outlet pipe further continuously rise, when the lowest point position of the material outlet pipe drainage pipe is reached, the biogas slurry flows inside a hydraulic pressure room from the fermenting pipeline by virtue of the material outlet pipe drainage pipe; when the methane inside any fermentation zone is used, the methane pressure inside the fermentation zone is reduced, the biogas slurry stored in the hydraulic pressure room flows back inside the fermenting pipeline by virtue of the material outlet pipe drainage pipe and the material inlet pipe drainage pipe to complete the circulating flow of the biogas slurry; when the methane inside another fermentation zone is used, methane is circularly produced according to the above steps and used.

Description

technical field [0001] The invention relates to a biogas fermentation system. Background technique [0002] Biogas digesters change the old living habits of farmers and improve the living environment in rural areas. The biogas digesters are built together with toilets and pigpens, which are not easy to breed mosquitoes and have no odor. It will play an important role in eradicating infectious diseases such as schistosomiasis and hookworm. In addition, due to frequent human activities, a large amount of energy consumption, and a large amount of open-air stacking of straw and livestock and poultry manure, etc., have caused a large amount of carbon dioxide emissions and aggravated the greenhouse effect. The use of biogas digesters can reduce the above problems to a certain extent. [0003] Promote the development of ecological agriculture and animal husbandry The waste from the biogas digester is biogas slurry and biogas residue, which can be used as pesticide additives, fert...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the biogas liquid in the traditional biogas tank has poor fluidity and is easy to crust, and the fermentation raw materials and strains are unevenly distributed in the biogas tank, resulting in low gas production efficiency and low utilization rate of fermentation raw materials

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