Novel upflow anaerobic reactor

Abstract

The invention discloses a upflow anaerobic reactor. The novel upflow anaerobic reactor comprises a tank, a stirring cracking assembly, a built-in heat energy conversion unit, a feeding device, a discharge device, a pressure protector, a gas outlet pipe and a slag discharge pipe. The stirring cracking assembly having functions of stirring mixing, cracking and slag removal, the built-in heat energy conversion unit, the discharge device which is sealed by water and can discharge dross, and the feeding device provided with a stored material automatic discharge device are ranged in the tank. The novel upflow anaerobic reactor is easy for operation, does not produce crusting in treatment on a fermentation mixture of livestock and poultry night soil, rural domestic organic garbage and straws, allows an uniform and constant reaction temperature, can operate stably and reliably, has low investment and operation costs, a high-load treatment capacity, large TS concentration and short hydraulic retention time. Through the novel upflow anaerobic reactor, a solid content of a fermentation solution is in a range of 8 to 15%; COD clearance is in a range of 60 to 80%; and a biogas yield is in a range of 1.5 to 3m<3> / m<3>*d.

Description

technical field [0001] The invention relates to an anaerobic digestion device, in particular to a device for producing biogas by anaerobic fermentation of mixed raw materials such as livestock manure, sludge, domestic organic waste, straw, and weeds. Background technique [0002] With the adjustment of the rural industrial structure, the rural farming and breeding industry has developed rapidly. While increasing agricultural income, the rural non-point source pollution has become increasingly serious, especially organic waste such as livestock and poultry manure, rural domestic garbage, straw, weeds, and sewage. The pollution problem caused by factory sludge is particularly prominent, and the dual contradiction between economic development and environmental protection is becoming more and more intense. The development of "green energy" has become an important means for industrialized countries in the world to increase revenue and reduce expenditure, turn harm into benefit an...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to prevent the upflow anaerobic solid reactor from producing biogas in the treatment of livestock and poultry manure, rural domestic organic waste, straw and other raw materials When liquid surface crusting occurs, pipes are easy to freeze and block, and the temperature in the reactor is ensured to be uniform and constant, the gas production efficiency and gas production stability of the upflow anaerobic solid reactor are improved, and a kind of gas production system suitable for large-scale biogas projects is provided. upflow anaerobic reactor

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