Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Raw material pretreatment method for preparing biogas

A pretreatment and raw material technology, which is applied in the direction of biomass pretreatment, biomass post-treatment, biological sludge treatment, etc., can solve the problems of low biogas fermentation gas production, lack of biogas raw material treatment methods and treatment devices, etc., and achieve the goal of improving biogas speed, increased utilization, and reduced acidification effects

Inactive Publication Date: 2019-07-30
LESHAN LIPU ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that there is currently a lack of treatment methods and devices for the treatment of biogas raw materials, and the gas production of biogas fermentation is low. The treatment method and treatment device, the problem of low gas production in biogas fermentation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Raw material pretreatment method for preparing biogas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 Shown, a kind of raw material pretreatment method for producing biogas of the present invention comprises the following steps:

[0032] S1. Obtain solid raw materials for biogas fermentation. The solid raw materials are dried in a drying device, and after drying, they are subjected to grit treatment in a grit chamber to remove sand and stones in the solid raw materials. The solid raw materials are desanded and then dried;

[0033] S2. In the pre-fermentation device, the solid raw material dried after desanding in step S1 is pulverized and mixed. The pre-fermentation device includes a pulverizer 1 and a mixing tank 2. The solid raw material is pulverized in the pulverizer 1 and then transferred to the mixing tank. In the tank 2, the pulverized solid material and the liquid fermentation material after desanding are uniformly mixed in the mixing tank 2, and the liquid fermentation material fully wets the solid material to obtain a wet mixed fermentation ma...

Embodiment 2

[0038] Based on Example 1, the pre-fermentation device also includes a horizontally placed base 4, the pulverizer 1, the mixing tank 2, and the stacking retting tank 3 are all installed on the base 4, and the mixing tank 2 and the stacking retting tank 3 adopt shapes and For tanks with the same size, the top and bottom surfaces of the tank are provided with openings, the top and bottom of the tank are provided with cover plates 5 for blocking the openings, and the covers on the mixing tank 2 and the retting tank 3 The plates are detachably connected to the corresponding mixing tank 2 and retting tank 3, the mixing tank 2 and the retting tank 3 are parallel to each other in the vertical direction and the vertical bisectors of the mixing tank 2 and the retting tank 3 coincide, A vertical mounting plate 6 is installed on the base 4, and the mounting plate 6 is located on one side of the mixing tank 2 and the retting tank 3, and the mounting plate 6 is installed with a rotating sha...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a raw material pretreatment method for preparing biogas. The method comprises the following steps that solid raw materials for biogas fermentation are obtained, the solid raw material are dried in a drying device, and the solid raw materials are subjected to settling treatment in a grit chamber after being dried; the dried solid raw materials without sand are crushed and mixed in a pre-fermentation device, wherein the pre-fermentation device comprises a pulverizer and a mixing tank; the solid raw materials are crushed in the pulverizer and then transferred to the mixingtank, and the crushed solid raw materials and liquid fermentation raw materials without sand are uniformly mixed in the mixing tank to obtain a wet mixed fermentation material, wherein the pre-fermentation device further comprises a retting pool; the mixed fermentation material is subjected to out-of-pool retting treatment in the retting pool, and the biogas is collected; a fermentation agent isadded into the mixed fermentation material obtained after retting treatment in the mixing tank to obtain a pre-fermentation raw material for biogas fermentation. The method solves the problems that abiogas raw material treatment method and device are lacked at present.

Description

technical field [0001] The invention relates to a biogas raw material pretreatment method, in particular to a raw material pretreatment method for producing biogas. Background technique [0002] Biogas is a mixture of gases with properties similar to natural gas. 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, and carbon tetrachloride. Human and animal feces, straw, sewage and other organic matter are fermented in a closed biogas digester under anaerobic (no oxygen) conditions, and are decomposed and transformed by a wide variety of biogas fermentation microorganisms to produce biogas. [0003] At present, there is a lack of pretreatment of biogas fermentation raw materials in biogas production, and the biogas yield is low; raw materials such as human and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C12M1/107C12M1/02C02F11/04
CPCC12P5/023C12M21/04C12M23/38C12M45/02C12M45/03C12M45/04C02F11/04Y02E50/30
Inventor 佘强
Owner LESHAN LIPU ENVIRONMENTAL PROTECTION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com