Self-stirring biogas digester based on solar energy

Abstract

The invention discloses a self-stirring biogas digester based on solar energy. The biogas digester comprises a tank body and a top cover, the top cover is positioned at the upper end of the tank body,a feeding pipe and a discharging pipe are arranged on the side wall of the tank body, the side wall of the top cover communicates with an exhaust pipe, a stirring mechanism and a heating mechanism are arranged in the tank body, a mounting box is arranged on the upper wall of the top cover, a driving mechanism capable of driving the stirring mechanism and the heating mechanism is arranged in the mounting box, the driving mechanism comprises a containing box arranged on the inner wall of the mounting box, a sliding plate is arranged on the inner wall of the containing box in a sliding mode, theupper wall of the sliding plate is elastically connected to the inner wall of the containing box through a spring, and the space, located at the upper end of the sliding plate, of the containing boxis filled with a heat-expansion and cold-contraction media. The biogas slurry is stirred by utilizing solar energy, so that the time and energy of people are saved, and the economic cost is also saved. The device can also improve the reaction rate of organic matters and microorganisms in the biogas slurry, and further improves the output rate of biogas.

Description

technical field [0001] The invention relates to the technical field of biogas fermentation equipment, in particular to a self-stirring biogas digester based on solar energy. Background technique [0002] Biogas is a flammable gas produced by microbial fermentation of organic matter in an anaerobic environment. The use of biogas saves energy and is environmentally friendly. Therefore, some biogas digesters are built in many rural areas, and biogas digesters can effectively improve rural areas. Sanitation conditions have played a role in promoting environmental protection in rural areas. [0003] If you want to improve the yield of biogas, you need to fully stir the biogas slurry in the biogas digester, or moderately heat the biogas slurry in the biogas digester to increase the reaction rate of organic matter in the biogas slurry. However, If it is manually stirred, it will consume a lot of time and energy, and the work efficiency is low, which is not realistic. If some stirr...

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Problems solved by technology

[0003] If you want to improve the yield of biogas, you need to fully stir the biogas slurry in the biogas digester, or moderately heat the biogas slurry in the biogas digester to increase the reaction rate of organic matter in the biogas slurry. However, If it is manually stirred, it will consume a lot of time and energy, and the work efficiency is low, which is not realistic. If some stirring devices are driven by the motor for stirring, it will consume a lot of electric energy and the cost is too high. Moreover, the general The stirring device has no heating effect, which does not meet the needs of biogas slurry stirring in real life. Therefore, it is necessary to design a self-stirring biogas digester based on solar energy.

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