High-efficiency cycle straw anaerobic fermentation system

Abstract

The invention relates to a high-efficiency cycle straw anaerobic fermentation system. The high-efficiency cycle straw anaerobic fermentation system comprises a straw pretreatment workshop, a biogas slurry input valve, a biogas slurry filtering workshop, a biochar filtering tank, a horizontal moving device, a suspended traction device, a filtrate output pipe mouth, a post treatment workshop, an anaerobic fermentation tank, a biogas slurry reflux pipeline, a biogas slurry output valve and a biogas slurry reflux valve. According to the high-efficiency cycle straw anaerobic fermentation system disclosed by the invention, the biochar filtering tank is utilized in a filtering process of the biogas slurry and also can realize an effect of better filtering particulate impurities; meanwhile, by filtering the biogas slurry through straws and carrying out degradation treatment on the straws by the biomass slurry, the high-efficiency cycle straw anaerobic fermentation system has the characteristics of complementation of each other's advantages, easiness in operation and high efficiency; multistage treatment of the straws is performed from the pretreatment workshop to the anaerobic fermentationtank, so that anaerobic fermentation of the straws is better facilitated; meanwhile, transportation and transfer of a regular hexahedronal box body are realized by horizontally moving a lifting device, so that labor force and material resources are reduced; on the whole, the high-efficiency cycle straw anaerobic fermentation system disclosed by the invention has the characteristics of simple structure and convenience in operation.

Description

technical field [0001] The invention relates to an anaerobic fermentation system, which belongs to the technical field of biogas engineering, in particular to a high-efficiency circulation straw anaerobic fermentation system. Background technique [0002] Biochar is a kind of highly aromatic and insoluble solid matter produced by pyrolysis and carbonization of biomass under complete or partial anoxic conditions. It has a rich pore size and a large specific surface area, and has a certain adsorption effect on heavy metal ions and harmful gases, and has a certain positive effect on the enrichment of microorganisms. However, its adsorption selectivity is poor, and its adsorption capacity is limited, so adding it directly cannot achieve the ideal effect of adsorption and filtration of biogas slurry. Straw is the general term for the stems and leaves of mature crops. Most straws contain waxy structures on the surface, and lignin, cellulose and hemicellulose are the main structur...

AI Technical Summary

Problems solved by technology

Because the biogas slurry contains macromolecular substances such as plant fibers, sediment, and suspended solids, and sometimes even contains high levels of heavy metals, if these impurities cannot be effectively removed, it will seriously block the spraying device of the biogas slurry, thereby hindering the biogas flow. Agricultural application promotion of liquid

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