Biological dry type fermentation treatment device for household garbage and crop straws

A technology for crop straw and dry fermentation, which is applied in gas production bioreactors, solid-phase fermentation bioreactors, biochemical equipment and methods, etc., and can solve problems such as secondary pollution

Active Publication Date: 2014-06-18
山东恒仁工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some treatment technologies are still limited to water washing, pyrolysis, high energy consumption, high water consumption and easy to produce secondary pollution

Method used

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  • Biological dry type fermentation treatment device for household garbage and crop straws
  • Biological dry type fermentation treatment device for household garbage and crop straws
  • Biological dry type fermentation treatment device for household garbage and crop straws

Examples

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0021] Such as figure 1 , figure 2 and image 3 As shown, it includes fermentation tank 1, tapered door opening 2, sealing strip 3, sealing door 4, door hinge shaft 5, door opening and closing device 6, biogas collection pipe 7, leachate pipe 8, spray pipe 9, and emptying valve 10. Isolation grate 11, leachate recovery pipe 12, outlet connection pipe 13, return connection pipe 14, return sewage electric pump 15, spray sewage electric pump 16, leachate outlet pipe 17, leachate inlet pipe 18, leachate storage tank 19, door presser 20, heating coil 21.

[0022] Assembly relationship:

[0023] Concrete rectangular arch-top fermentation tank 1 built above the ground level, with a tapered opening 2 at one end of the fermentation tank 1, a sealing strip 3 attached to the periphery of the airtight door 4, and the airtight door 4 is installed on the opening and c...

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PUM

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Abstract

The invention relates to a biological dry type fermentation treatment device for household garbage and crop straws. The device comprises fermentation tanks, a spray pipe, a reflux sewage electric pump, a spray sewage electric pump, a leachate storage tank and a heating coil, wherein a cone-shaped door hole is formed in one end of each fermentation tank while an emptying valve is arranged at the other end of the fermentation tank; a plurality of biogas collecting pipes are communicated with a biogas storage cabinet; the fermentation tank is a dry type fermentation tank, no water is used for fermentation, and no biogas slurry is discharged; the fermentation tank has an arched top to collect biogas conveniently; the dry type fermentation tank is modular and multiple tanks are circularly used to realize continuity of treatment and gas generation of garbage and crop straws; 25-30 days of dry type fermentation is a cycle; through intermediate temperature fermentation at 35-38 DEG C, the hot water coil is used to heat in winter or seasons at low temperatures. Acidified gases are discharged before the gas generation cycle, the hydrogen sulfide content of the biogas generated by dry type fermentation is lower than that of biogas generated in a wet process, and the purity of biogas is high. CH4 is greater than or equal to 65%, and H2S is less than or equal to 12ppm. 120-150 of biogas is generated by mixed raw materials of garbage and straws per ton.

Description

technical field [0001] The invention relates to a domestic garbage and crop straw treatment device, in particular to a device for resource utilization and harmless treatment of methane generated by mixed biological dry anaerobic fermentation of garbage and straw. Background technique [0002] According to reports, as of the end of 2010, the annual removal and transportation of domestic waste in cities across the country was 212 million tons, and the annual waste discharge in rural areas was 300 million tons. The discharge of livestock and poultry manure is about 3 billion tons, and the annual production of crop straw is about 700 million tons. City garbage has been besieged, 19.6% of which is incinerated to generate electricity, and 77% is simply landfilled. The rubbish in the countryside is piled up like a mountain, and the straw is piled up randomly and burned at will, which has not been effectively treated. [0003] At present, 77% of urban domestic waste is landfilled ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/16C12M1/107
CPCC12M21/04C12M23/02C12M29/06C12M29/18Y02E50/30
Inventor 吕宏涛马春艳
Owner 山东恒仁工贸有限公司
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