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Non-pressure biogas generating pit

A biogas digester and air extractor technology, which is used in gas production bioreactors, biochemical instruments, waste fuels, etc., can solve the problems of small volume, easy corrosion and gas leakage of the pool body, and inconvenient maintenance.

Inactive Publication Date: 2008-09-24
周升阳
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In recent years, the state has given great support to the development of biogas. Many hydraulic biogas digesters have been built in some remote rural areas. After being crushed and stirred, it is filled into the biogas digester. The fermentation reaction is not stable, the pond body is prone to corrosion and air leakage, and maintenance is inconvenient; most of the biogas digesters are stopped and scrapped.

Method used

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  • Non-pressure biogas generating pit

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Embodiment Construction

[0006] Further elaboration will be made below in conjunction with accompanying drawings and specific examples:

[0007] See accompanying drawing: Implementation method:

[0008] Dig a cuboid biogas fermentation tank 1, build the dug pool with bricks, after building it, smooth it with cement, the top of the pool will be about 20-30 centimeters higher than the ground level 2, to prevent rainwater from pouring into the pool, The bottom of the pool should be paved with bricks, and then smoothed and calendered with cement. After 7 days of maintenance, water is poured to test the leak. If the water is filled, the drop is less than 10 cm within 2 hours. It is normal, otherwise, the pool is leaking. Add materials after building the pond. If the fermented material is straw, add urea to adjust the carbon-to-nitrogen ratio to about 25:1, then add part of the biogas fermentation liquid into the biogas digester, and place a foam plastic board 3 in the middle of the digester. The plastic p...

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Abstract

The invention provides an agitation-free, low cost and usable non-pressure methane tank without breaking culms. The upper cover of the methane tank designed by the invention is made of soft plastic. The length and the width of the soft plastic cover film are larger than the length and the width of the methane tank by three meters. Culms can be directly added to fermentation liquid without being broken. After the culms are fed, settling blocks are arranged around the soft plastic cover so that the plastic cover sinks into the methane fermentation liquid; an air pump is used to pump air outside; under atmospheric pressure, floating culms are pressed into the fermentation liquid, and the air inside the soft plastic cover film is completely pumped out; the methane produced in the methane tank is dehydrolyzed through a moisture separator, and desulphurized through a devulcanizer, and is pressed into a gas collector after the methane is pumped out by the air pump.

Description

technical field [0001] The invention relates to a methane fermentation device, in particular to a pressureless methane pool. Background technique [0002] In recent years, the state has given great support to the development of biogas. Many hydraulic biogas digesters have been built in some remote rural areas. After crushing and stirring, it is filled into the biogas digester, the fermentation reaction is not stable, the pond body is prone to corrosion and air leakage, and maintenance is inconvenient; most of the biogas digesters are out of service and scrapped. Contents of the invention [0003] The invention overcomes the defects in the prior art and provides a non-pressurized biogas digester which avoids straw crushing, stirring, low cost and is convenient to use. [0004] The upper cover of the biogas digester designed by the present invention is composed of soft plastic, and the length and width of the soft plastic cover film are about 3 meters larger than the length...

Claims

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Application Information

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IPC IPC(8): C12M1/107
CPCY02E50/343C12M27/22C12M23/36C12M47/18C12M47/14C12M21/04C12M23/38C12M23/26C12M23/56Y02E50/30
Inventor 周升阳
Owner 周升阳
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