An environment-friendly biogas digester for fermentation of organic matter

Abstract

The invention discloses an environmental-friendly biogas digester for organic matter fermentation. The problem that when the biogas is accumulated in a large amount in the biogas digester in the priorart, defects exist in both free discharging and additional collection. The environmental-friendly biogas digester for organic matter fermentation comprises a biogas digester body with a feeding inletand a discharging outlet, and a liquid discharging device is installed in the biogas digester body. The liquid discharging device comprises floating plates, a plurality of floats, ventilation holes,a liquid discharging inner pipe, a liquid discharging outer pipe and a connecting hose, wherein the floating plates are placed on the surface of the biogas slurry in the biogas digester body, the floats are fixed below the floating plates, the ventilation holes are formed in the floating plates between the floats, the liquid discharging inner pipe penetrates through the floating plates and extendsinto the biogas slurry, the liquid discharging outer pipe penetrates through the biogas digester body and is located at the top end of the biogas digester body, one end of the connecting hose is connected with the top end of the liquid discharging inner pipe, and the other end of the connecting hose communicates with the liquid discharging outer pipe. The environmental-friendly biogas digester for organic matter fermentation has the advantages that the biogas is effectively prevented from discharging into the air, the pollution is reduced or even avoided, energy waste caused by biogas discharging is effectively saved, the floor area is not required to be additionally increased, the cost input is reduced, and safety performance is improved.

Description

technical field [0001] The invention belongs to the field of biogas digesters, in particular to an environment-friendly biogas digester for fermenting organic matter. Background technique [0002] Biogas is a combustible gas produced by microbial fermentation of organic matter in an anaerobic environment under certain conditions of temperature, humidity, and pH. [0003] With the development of our country's economy and social progress, the life of urban residents has been further improved, but there are still many problems in the life of rural residents. Due to frequent human activities, a large amount of energy consumption, and a large amount of open-air stacking of straw and livestock and poultry manure, etc., have caused a large amount of carbon dioxide emissions and aggravated the greenhouse effect. [0004] The construction of new countryside appears to be very necessary. This requires the grand goal of developing rural ecological agricultural production methods, imp...

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Problems solved by technology

[0005] However, when the amount of biogas used in the biogas digester is not large, it is easy to cause a large amount of biogas to accumulate in the biogas digester, which will greatly increase the pressure in the biogas digester and cause potential safety hazards

In order to solve the above problems, there are two common methods in the prior art. One is to discharge directly into the atmosphere to relieve the pressure in the biogas digester. This method will lead to energy waste and environmental pollution. When mixed, it may cause an explosion and cause safety hazards; the second is to install an additional gas collection device outside the biogas digester for backup, but for ordinary families, there is usually less excess biogas in the pond. If a gas collection device is installed separately The collection device not only increases the cost, but also increases the occupied area and potential safety hazards

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