Ecological pig-keeping system of biomass cogeneration

Abstract

The invention relates to the technical field of breeding and comprehensive utilization of resources and particularly relates to an ecological pig-keeping system of biomass cogeneration. The ecologicalpig-keeping system comprises a pig-keeping room, wherein a plurality of piggeries are arranged in the pig-keeping room at intervals, a fecal sewage collecting pit is arranged in each piggery, a sewage conduit is laid underground the pig-keeping room, drainage openings of the fecal sewage collecting pits and the sewage conduit communicate with the pig-keeping room, and heating plants, refrigerating plants, flushing devices, ventilating devices and lighting devices are arranged in the pig-keeping room; and a feces blending tank, a settling tank, a first biogas fermentation tank, a second biogasfermentation tank, a marsh gas extraction device, a methanol solution synthesizer, a biogas liquid and biogas residue treatment device, a methanol-water hydrogen production reformer, fuel cells and acontrol device are separately arranged outside the pig-keeping room. According to the ecological pig-keeping system of biomass cogeneration, salvaged materials of pig-keeping are converted to generate heat energy and electric power, the intelligent control on the entire system is achieved, biomass energy can be efficiently converted and comprehensively utilized to form the ecological pig-keepingsystem, and thus, the ecological pig-keeping system has a broad industrialized application prospect.

Description

technical field [0001] The invention relates to the technical field of breeding and comprehensive utilization of resources, in particular to an ecological pig raising system for cogeneration of biomass heat and power. Background technique [0002] Environmental pollution and energy shortage are two major themes worldwide, and it is imminent to develop technologies for green environmental governance and renewable energy production. According to statistics, my country's large-scale livestock and poultry farming produces about 3.8 billion tons of livestock and poultry farming waste (feces) every year. If it is completely converted into biogas, it is equivalent to 162 million tons of standard coal, and only about 15% of which are equipped with biogas projects. Handle equipment. Livestock and poultry manure has become one of the main sources of agricultural non-point source pollution. A large amount of livestock and poultry manure has been discharged without treatment, seriously ...

AI Technical Summary

Problems solved by technology

However, the main problems in the existing methods of manure processing in the process of raising pigs are: (1) The manure of livestock and poultry is not fully utilized and transformed well, the treatment method of manure of livestock and poultry is single, there is no comprehensive treatment, and the treatment efficiency is low, Moreover, the equipment occupies a large area, and the operation and maintenance costs are high, which affects the large-scale promotion and use; (2) The storage, transportation and effective utilization of biogas prepared from livestock and poultry manure have always troubled people

On the one hand, biogas contains toxic gases such as hydrogen sulfid

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