Fermentation tank for preparing biogas by utilizing anaerobic fermentation of livestock and poultry manure and treatment process thereof

Abstract

The invention discloses a fermentation tank for preparing biogas by utilizing anaerobic fermentation of livestock and poultry manure and a treatment process thereof, and belongs to the technical fieldof manure treatment processes. The fermentation tank mainly comprises a fermentation tank body, a separation support plate, movable placement plates, a lifting rod, a sliding gear, a manure stirringelement, a manure storage tank, a manure discharge tank and a power supply, the livestock and poultry manure is subjected to layered fermentation by arranging a plurality of movable placement plates,the interior of the fermentation tank body is heated while fermentation is conducted, it is guaranteed that the fermentation temperature of each layer is uniform, fermentation is sufficient, meanwhile, biogas generated by fermentation can flow out sufficiently, the biogas yield is increased; one end of each movable placement plate is lifted up through the lifting rod, so that the movable placementplates are inclined, livestock and poultry manure can be quickly and uniformly dispersed to the upper end of the movable placement plates, zymophyte can be uniformly dispersed in the manure, the fermentation rate and effect are improved; and the method has the advantages of high fermentation rate, good effect and high practicability, and is suitable for large-scale popularization.

Description

technical field [0001] The invention belongs to the technical field of manure treatment technology, and in particular relates to a fermentation tank for producing biogas by anaerobic fermentation of livestock and poultry manure and a treatment process thereof. Background technique [0002] Looking back on the thousands of years of human breeding history, livestock and poultry manure has always been an important fertilizer resource for agricultural production. In recent years, as the cost of human resources continues to rise and the degree of mechanization of agricultural production continues to increase, this law and balance has been broken. Manure has become one of the main pollution sources in rural areas. Livestock and poultry manure has become a problem because of its concentration and large volume. Generally speaking, manure is a resource that has been misplaced. We must adhere to the concept of circular economy and promote the combination of agriculture and animal husb...

AI Technical Summary

Problems solved by technology

[0005] The existing biogas fermentation tanks have the following defects: 1) All the manure of livestock and poultry is added to the fermentation tank, and the fermentation process is carried out uniformly, which does not have the function of layered fermentation. When the manure of livestock and poultry is fermented, on the one hand, the fermentation bacteria cannot On the other hand, it is difficult to discharge the biogas generated by the bottom layer of manure, which affects the efficiency of manure fermentation, reduces the production of biogas, and causes waste of resources; 2) The existing biogas fermentation tank is used for stirring manure and bacteria The length of the stirring element cannot be adjusted according to the depth of the feces in the fermentation tank, and there are problems such as incomplete stirring and the inability to fully disperse the bacteria, and poor practicability

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