Large-sized open mouthed combined methane tank

Abstract

The invention discloses a large-scale open compound methane tank, including a fermenting tank (1), a gas collection and storage device (2), and an air feeder (3) connected with the fermenting tank, wherein, the fermenting tank includes a plurality of independent fermenting tanks which can be communicated or disconnected mutually. The methane tank also includes the gas collection and storage device, the air feeder, a solar warming device, a charging / discharging device and an anti-encrustation device of the methane tank. When in use, as the structure of the invention is provided with a plurality of independent fermenting tanks, the air can be fed continuously in the raw material renewal process; the charging / discharging device accelerates the material charging and discharging; the gas collection and storage device of the methane tank has low construction cost, a software cover can be opened or retracted according to gas production, a gas collection and storage chamber can be changed according to the methane quantity, the pressure in the gas collection and storage chamber can not be too high, and the solar warming device increases the temperature in the methane tank so as to lead the straw material to produce the methane under the suitable temperature in winter; and a circulating pump is used for spraying the methane fluid onto the straw material through a nozzle so as to avoid encrustation.

Description

technical field [0001] The utility model belongs to the technical field of biogas pits, in particular to a large open composite biogas pit. Background technique [0002] In the process of using biogas in rural areas, the straw biogas digester has many advantages. Compared with the commonly used manure fermentation, the straw is widely distributed, the raw material is sufficient, and the water content is low. The biogas residue produced is solid and can be used directly as an organic fertilizer. , Straw can be stored for a long time, easy to transport and cheap. However, due to some problems in the promotion of straw biogas digesters, some problems have not been reasonably solved, so that rural straw has not been fully utilized. In the process of straw biogas digesters development, there are mainly the following problems: 1. In the process of raw material renewal and During the maintenance of the biogas digester, there will be gas cut-off; 2. Because the opening of the bioga...

AI Technical Summary

Problems solved by technology

However, due to some problems in the promotion of straw biogas digesters, some problems have not been reasonably solved, so that rural straw has not been fully utilized. In the process of straw biogas digesters development, there are mainly the following problems: 1. In the process of raw material renewal and During the maintenance of the biogas digester, there will be gas cut-off; 2. Because the opening of the biogas digester is generally small, the feeding and discharging of the straw biogas digester is difficult and slow; 3. The biogas collection equipment generated is expensive and not easy to popularize; 4. Low utilization rate of straw, low gas production rate, and slow start; 5. Straw ponds are easy to crust;

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