Fermentation tank for biogas engineering

Abstract

The invention relates to a fermentation tank for biogas engineering, which comprises a tank body. The tank body is provided with a feed pipe, a discharge pipe and an air outlet pipe, wherein the feed pipe and the discharge pipe are arranged on the both corresponding bottom sides of the tank body, the tank body is connected with a storage pool through the feed pipe and connected with a biogas residue treatment plant through the discharge pipe, the air outlet pipe which communicates the tank body and the biogas purification plant is arranged at the top of the tank body, the tank body is provided with a heating pipe which connects the tank body and the heating boiler, and a thermometer is arranged on the tank body. According to the invention, the thermometer is arranged inside the fermentation tank for monitoring the internal temperature of the fermentation tank, and meanwhile the fermentation tank is provided with the heating pipe which communicates the fermentation tank and the heating boiler for heating the fermentation tank in cold season, so as to ensure the fermentation temperature in fermentation tank and the biogas production.

Description

Technical field: [0001] The invention belongs to the technical field of biogas generation, and in particular relates to a fermenter for biogas engineering. Background technique: [0002] Biogas, its main component is methane, methane is an ideal gas fuel, it is colorless and odorless, and it can burn when mixed with an appropriate amount of air. The calorific value of pure methane per cubic meter is 34,000 kilojoules, and the calorific value of biogas per cubic meter is about 20,800-23,600 kilojoules. That is, after 1 cubic meter of biogas is completely burned, it can produce the heat equivalent to 0.7 kg of anthracite. Compared with other gases, it has better antiknock performance and is a good clean fuel. In addition to being directly burned for cooking, drying agricultural and sideline products, heating, lighting, and gas welding, biogas can also be used as fuel for internal combustion engines and for the production of chemical raw materials such as methanol, formalin, ...

AI Technical Summary

Problems solved by technology

[0003] A complete biogas fermentation project, regardless of its scale, includes the following technological process: collection of raw materials, pretreatment, fermentation device (biogas digester), post-treatment of discharged materials, purification and storage of biogas, etc. Currently, pre-processing The processed raw materials are sent to the fermentation device (methane digester) through the conveying device for fermentation to generate biogas. The generated biogas is filtered and purified for people's daily production and daily use or storage. The fermentation device is the core component of the entire fermentation project. Traditional Fermentation devices generally belong to natural fermentation. The fermentation temperature is greatly affected by the external temperature and cannot be controlled. This leads to hot weather in summer, large gas production, and endless biogas consumption. Cold winter, low temperature, and small gas production cannot meet the use requirements.

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