Quick anaerobic fermentation system of livestock and poultry liquid dung

Abstract

The invention discloses a quick anaerobic fermentation system of livestock and poultry liquid dung. The system comprises a filter pool, a fermentation pool and a methane tank, wherein the filter poolis connected in parallel with the fermentation pool through a partition; the filter pool and the fermentation pool are covered with a single cover plate; the bottoms and the side faces of the filter pool and the fermentation pool are covered with black membranes; a discharge pipe is arranged at the upper end of a side wall of the fermentation pool; a plurality of parallel flushing devices are arranged in the middle of the fermentation pool; a heating coil is arranged at the bottom of the fermentation pool; the bottom of the filter pool is connected with the bottom of the fermentation pool through a deslagging pipe; an exhaust pipe is arranged at the upper part of a side wall of the filter pool; and the other end of the exhaust pipe is connected with the methane tank. The black membranes are laid; the problem of infiltration of the traditional methane system is solved; a shrinkage situation of reinforced concrete is avoided; with the adoption of the flushing devices and baffles, the problems of crusting on an upper layer of a reaction material in the anaerobic fermentation pool and depositing of a solid sand layer at the bottom of the fermentation pool are solved; the system can achieve efficient and quick treatment of livestock and poultry excrement; hydraulic retention time does not exceed 5 days; and the fermentation is thorough and high in efficiency.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a rapid anaerobic fermentation system for livestock and poultry manure. Background technique [0002] A few days ago, with the growth of breeding scale and number of breeding, the amount of manure discharge is increasing, and the problem of odor pollution caused by livestock and poultry breeding is becoming more and more significant. Therefore, how to deal with the discharge and treatment of livestock and poultry manure has gradually become a concern of people. A big focus. In my country, the traditional biogas project (i.e. CSTR project) is mainly used to treat livestock and poultry manure, but the CSTR project still has large project investment, is greatly affected by the relationship between energy supply and demand, and the investment is not proportional to the convenience of use, and has not formed a market. The convenience of input and use is not proportional to the ...

AI Technical Summary

Problems solved by technology

[0003] The invention aims at the problem of long and incomplete processing time of existing livestock and poultry manure biogas engineering, and provides a rapid anaerobic fermentation system of livestock and poultry manure

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