Efficient anaerobic fermentation equipment

Abstract

The invention discloses efficient anaerobic fermentation equipment. The efficient anaerobic fermentation equipment comprises a fermentation tank which is fixedly mounted on a bracket, wherein the fermentation tank is internally provided with a fermentation cavity with an upward opening; an air outlet hole, which is communicated with the outer part, is formed in a side wall of the fermentation cavity; an outer wall of the fermentation tank is fixedly provided with an air guide pipe which is communicated with the air outlet hole; a valve is mounted on the air guide pipe; a stirring assembly is arranged in the fermentation cavity; the stirring assembly comprises a stirring shaft, a stirring blade, an upper supporting sleeve and a lower supporting sleeve; the stirring shaft is rotatably mounted in the upper supporting sleeve and the lower supporting sleeve through a bearing; supporting arms are fixedly mounted at left and right sides of the upper supporting sleeve and the lower supportingsleeve; one end, far away from the stirring shaft, of each supporting arm is fixedly mounted on an inner wall of the fermentation cavity; a first friction disc is fixedly mounted at the upper end of the stirring shaft; a sealing cover is mounted at the upper end of the fermentation cavity in a sealed matching manner; a suspension arm is fixedly mounted at the center of the upper end face of the sealing cover.

Description

technical field [0001] The invention relates to the technical field of microbial fermentation, in particular to high-efficiency anaerobic fermentation equipment. Background technique [0002] Anaerobic fermentation refers to the stabilization of waste through the metabolic activities of microorganisms under anaerobic conditions, accompanied by changes in the production of methane and CO2. The liquefaction stage is mainly due to fermentation bacteria, including cellulolytic bacteria and proteolytic bacteria. , the acid-producing stage is mainly acetic acid bacteria, and the methanogenic stage is mainly methane bacteria. They degrade the products produced in the acid-producing stage into methane and CO2, and use the hydrogen produced in the acid-producing stage to reduce CO2 into methane. Anaerobic fermentation Influencing factors are: ratio of raw materials, carbon-nitrogen ratio of anaerobic fermentation should be 20-30, when the carbon-nitrogen ratio is 35, the production...

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Problems solved by technology

[0002] Anaerobic fermentation refers to the stabilization of waste through the metabolic activities of microorganisms under anaerobic conditions, accompanied by changes in the production of methane and CO2. The liquefaction stage is mainly due to fermentation bacteria, including cellulolytic bacteria and proteolytic bacteria. , the acid-producing stage is mainly acetic acid bacteria, and the methanogenic stage is mainly methane bacteria. They degrade the products produced in the acid-producing stage into methane and CO2, and use the hydrogen produced in the acid-producing stage to reduce CO2 into methane. Anaerobic fermentation Influencing factors are: ratio of raw materials, carbon-nitrogen ratio of anaerobic fermentation should be 20-30, when the carbon-nitrogen ratio is 35, the production period will drop significantly; the temperature should be 35-40°C; It is absolutely necessary to maintain a weak alkaline environment. Its optimal pH range is 6.8-7.5, and the pH value is low. It increases CO2 greatly, produces a large amount of water-soluble organic matter and H2S, and the increase of sulfide content inhibits the growth of methanogens. growth, you can add lime to adjust the PH, but the traditional way of adding lime is to open the sealed cover and add it to the fermenter, which will affect the growth of anaerobic microorganisms, so it will have a great impact on fermentation

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