A sealing treatment method for biogas digester gas chamber construction

A treatment method and a biogas digester technology are applied in the field of construction and sealing treatment of a biogas digester gas chamber, which can solve the problems of high cost, poor sealing performance of a layer of glass fiber, difficult operation, etc., and achieves easy application, promotion of ecological agriculture development, and good compatibility. Effect

Active Publication Date: 2017-11-03
SHANDONG XINJI ANIMAL HUSBANDRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This document mainly uses polyester unsaturated resin and glass fiber as raw materials, and the operation in the pool is difficult, the cost is high, and the sealing performance of a layer of glass fiber is poor

Method used

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  • A sealing treatment method for biogas digester gas chamber construction
  • A sealing treatment method for biogas digester gas chamber construction
  • A sealing treatment method for biogas digester gas chamber construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A method for sealing the gas chamber of a biogas digester. The biogas digester includes a pond bottom, a pond wall, a vault, a water pressure room, a feed pipe, and a discharge pipe. The bottom of the pond, the pond wall and the vault form a fermentation chamber and an air chamber. There is a main pool mouth on the top, a movable cover at the main pool mouth, and an air outlet pipe on the movable cover. The construction and sealing methods include:

[0052] (1) The construction and sealing method for the pool bottom, pool wall, water pressure room, discharge pipe, and feed pipe is: build a layer of brick molds on the pool bottom, pool wall, and water pressure room, and use concrete to The pool body is poured, one layer is poured, and the second layer of brick mold is built after vibrating and compacted. After the material is solidified, the brick mold is removed, and the inner wall of the pool bottom, pool wall, water pressure room, discharge pipe, and feed pipe is inspe...

Embodiment 2

[0060] A biogas digester gas chamber construction sealing treatment method, the method is as described in Example 1, the difference is that it also includes step (4), the biogas digester is tested for sealing.

Embodiment 3

[0062] A biogas digester gas chamber construction sealing treatment method, the method is as described in embodiment 1, the difference is that in step (1) on the bottom of the pond, the wall, the water pressure room, the outlet pipe, and the feed pipe Internal sealing treatment of the inner wall of the part: (a) plastering of the bottom layer: mix and mix cement:sand:water=1:2.5:1 according to the mass ratio to make cement sand mortar, and the brushing thickness is 1cm; (b) Surface layer plastering: mix cement:sand:water=1:1:0.5 according to the mass ratio and mix well to obtain cement sand mortar, and the thickness of brushing is 0.4cm; it must be smoothed and calendered repeatedly, and no blisters can appear; ( c) Brushing mortar on the surface: mix cement: water = 2: 1 according to the mass ratio and mix to obtain a plain mortar, and brush it for 3 times in total. The time interval between each brushing is 4 hours, and the thickness of each brushing is 0.1cm ; Between step ...

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Abstract

The invention relates to a building and sealing treatment method for a gas chamber of a biogas digester, and belongs to the technical field of agricultural environmental protection. The method is particularly applicable to biogas digesters for rural household. According to the method, different positions of the biogas digester need to be separately treated in an actual building process, that is, novel internal sealing treatment is performed on gas storage positions of the inner wall of the biogas digester within a width range of 20 cm below a vault as well as the joint between the vault and the wall of the biogas digester; after a brick die is formed and before the gas chamber of the biogas digester is subjected to pouring, building material layers are laid layer by layer, and then the pouring of concrete is performed; meanwhile, the method is combined with an external sealing method, so that the sealing performance and the one-time building success rate are higher, the manpower and the time are saved, the open-air operation is convenient, the high simpleness, great convenience and high feasibility are achieved, the cost is low, and the popularization is easy.

Description

technical field [0001] The invention relates to a method for constructing and sealing a gas chamber of a biogas digester, and belongs to the technical field of agricultural environmental protection. Background technique [0002] With the development of my country's biogas science and technology and the popularization of rural household biogas, the majority of rural households are actively building biogas digesters. Rural household biogas digesters mainly use hydraulic biogas digesters, most of which use concrete, brick, stone and other building materials. These material structures have a considerable number of microscopic pores of different sizes, and most of these pores are not closed, even if they are multi-layered. The inner wall of the plastered biogas digester also has many pores that are more than four times larger than the molecular diameter of methane of 3.76 angstroms in the cement mortar sealing layer. Under a certain biogas pressure, the biogas can easily leak ou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/107
CPCC12M21/04C12M37/04Y02E50/30
Inventor 潘军张永华赵贤良王道亮安金勇何娅婷陈亚林彭兴泉庄童琳
Owner SHANDONG XINJI ANIMAL HUSBANDRY
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