Dry fermentation device and dry fermentation method to prepare biogas through high-concentration solid raw materials

A dry fermentation device, biogas technology, which is applied in the methods of sampling biological materials, biochemical equipment and methods, bioreactors for gas production, etc., can solve the problems of poor distribution, uneven inoculation, easy acidification, etc. Reasonable distribution, uniform inoculation, and not easy to acidify

Active Publication Date: 2013-06-05
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a dry fermentation device for preparing biogas, which solves the problems of poor distribution of raw materials in the reactor, uneven inoculation, difficult discharge, and easy acidification during the dry fermentation process.

Method used

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  • Dry fermentation device and dry fermentation method to prepare biogas through high-concentration solid raw materials
  • Dry fermentation device and dry fermentation method to prepare biogas through high-concentration solid raw materials
  • Dry fermentation device and dry fermentation method to prepare biogas through high-concentration solid raw materials

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Embodiment Construction

[0032] The following is a further description of the present invention, rather than a limitation of the present invention.

[0033] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] Such as figure 1 , 2 As shown in and 3, the dry anaerobic reactor comprises a reactor tank 1, an air duct 29 arranged at the top of the reactor tank 1, a top cover 2 arranged at the upper end of the reactor tank 1, and a cover 2 arranged at the top of the reactor tank 1. The feed port 3 of the top cover 2, the rotary spraying device and the distributing device arranged inside the dry anaerobic reactor, the upper window 24 arranged at the upper end of the reactor tank 1 and the assisting outlet at the lower end Port (and lower window) 14, baffle plate 15 and screw discharge device 16 arranged at the middle and lower end of the dry anaerobic reactor, filtrate circulation outlet 22 and drain outlet 23 arranged at the conica...

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Abstract

The invention discloses a dry fermentation device and a dry fermentation method to prepare biogas through high-concentration solid raw materials. The raw materials are reasonably distributed, inoculation is uniform, acidification is not prone to occurrence, organic matter degradation is sufficient, the materials are discharged easily, a function of solid-liquid separation is provided, secondary pollution is avoided, biogas residue can be converted into fertilizer, and therefore the dry fermentation device and the dry fermentation method to prepare the biogas through the high-concentration solid raw materials become an important choice for efficiently (high content of solid) processing fermentable organic waste in the fields of industry and agriculture.

Description

Technical field: [0001] The invention relates to a device and method for preparing biogas, in particular to a dry fermentation device and method for preparing biogas from high-concentration solid raw materials (the solid content in the raw material is more than 20%). Background technique: [0002] Biogas fermentation refers to the process of microbial degradation of organic matter in the absence of free oxygen, and the fermentation product biogas (CH 4 ) is clean energy, and the degraded residue can be used as high-quality fertilizer. According to the concentration of fermentation substrate, biogas fermentation can be divided into wet fermentation (liquid fermentation, the solid matter content of the fermented product is below 10%) and dry method fermentation (solid fermentation, the solid matter content of the fermented product is in the range of 18%~30%) Inside). [0003] The wet continuous biogas fermentation process is mainly used at home and abroad, and the wet anaero...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/16C12M1/107C12P5/02
CPCC12M21/16Y02E50/343C12M33/16C12M27/20C12M21/04Y02E50/30
Inventor 孔晓英甄峰李连华孙永明李东李志兵袁振宏
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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