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Automatic thickening straw biogas digester

A biogas digester and straw technology, which is applied in the directions of gas production bioreactors, biochemical instruments, biochemical equipment and methods, etc., can solve the problems of low gas production efficiency, low mixing degree, poor mixing uniformity, etc., so as to improve gas production. The effect of efficiency

Pending Publication Date: 2019-06-14
方旭华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the defects and problems of low mixing degree of raw materials and biogas slurry, poor mixing uniformity between raw materials and low gas production efficiency in the prior art, and provide a kind of combination of raw materials and biogas slurry Automatic thickening thick straw biogas digester with high mixing degree, good mixing uniformity between raw materials, and high gas production efficiency

Method used

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  • Automatic thickening straw biogas digester
  • Automatic thickening straw biogas digester
  • Automatic thickening straw biogas digester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] see figure 1 - Figure 10 , an automatic thickening thick straw biogas digester, comprising a biogas digester 1, a feed channel 2 and an air receiving chamber 6, each of the two sides of the biogas digester 1 communicates with a feed channel 2, and the top of the biogas digester 1 is connected to the stack An air chamber 6 is arranged between the material plates 5; the feed channel 2 includes an upper channel wall 21, a feed port 22 and an outer channel wall 23, and the upper channel wall 21, the feed port 22 and the outer channel wall on the same side 23 is oppositely arranged, and a dodge door 3 is arranged in the feed port 22, and the top of the dodge door 3 is in contact with the top edge of the feed port 22, and the bottom end of the dodge door 3 is hinged with the bottom edge of the feed port 22 Even, the side of the dodge door 3 is set opposite to the outer channel wall 23; the biogas digester 1 includes a biogas slurry circulation pump 17, a left inclined botto...

Embodiment 2

[0060] Basic content is the same as embodiment 1, the difference is:

[0061] The inner end of the left inclined bottom shell 11 is connected to the inner end of the right inclined bottom shell 12 through the thick slag liquid pit 15, the thick slag liquid pit 15 is set lower than the left inclined bottom shell 11 and the right inclined bottom shell 12, and the biogas slurry The circulating pump 17 is arranged near the thick slag liquid pit 15; the middle part of the pool top plate 13 and the stacking plate 5 is provided with the same slag extraction channel 16, and the bottom end of the slag extraction channel 16 is located in the inside of the fermentation chamber 14, and the slag extraction The top of the channel 16 passes through the pool roof 13, the air receiving chamber 6, and the stockpiling plate 5 in sequence, and then extends to directly above the stockpiling plate 5. It does not communicate with the air receiving chamber 6, and there is a middle ventilation pipe 61...

Embodiment 3

[0063] Basic content is the same as embodiment 1, the difference is:

[0064] The automatic thickening thick straw biogas digester also includes a vibrating screen 7, the vibrating screen 7 includes a vibrating vertical shaft 71 and a vibrating grid plate 72, and a plurality of grid plate through holes 721 are opened on the vibrating grid plate 72; the air vent 131 Including sequentially connecting No. 1 assembly vertical side 73, No. 1 supporting horizontal side 731, No. 2 assembling vertical side 732, No. 2 supporting horizontal side 733, No. 1 assembling vertical side 73, No. The supporting horizontal side 731 and the No. 2 supporting horizontal side 733 are arranged oppositely. The No. 1 assembly vertical side 73 and the No. 2 assembly vertical side 732 are respectively embedded with an I-beam 74 on the front and rear ends of the respective inner walls. The I-beam 74 The upper beam plate 741 and the lower beam plate 742 are exposed in the air vent 131, and the four lower b...

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Abstract

The invention provides an automatic thickening straw biogas digester. The automatic thickening straw biogas digester comprises a biogas slurry circulating pump, a biogas digester body and a feed channel, wherein the feed channel comprises a port upper channel wall, a feed port and an outer side channel wall, the biogas digester body comprises a left inclined bottom shell, a right inclined bottom shell, a digester top plate and a fermentation cavity, the inner end of the left inclined bottom shell is connected with the inner end of the right inclined bottom shell, the outer ends of the left inclined bottom shell and right inclined bottom shell are connected with the digester top plate through the feed port and the port upper channel wall, the left inclined bottom shell and the right inclined bottom shell are set to heighten gradually from inner end to outer end respectively, the biogas slurry circulating pump arranged beside the joint of the left inclined bottom shell and the right inclined bottom shell is connected with the inner ends of a left transverse biogas slurry pipe and right transverse biogas slurry pipe through a vertical biogas slurry pipe, the outer ends of the left transverse biogas slurry pipe and right transverse biogas slurry pipe are arranged close to the feed port, the top of the fermentation cavity is communicated with an air storage cavity through a vent port formed in the digester top plate, and the side of the fermentation cavity is communicated with the feed channel through a movable door. The automatic thickening straw biogas digester has the advantages that not only is the mixedness among biogas slurry raw materials higher, the mixing uniformity among the raw materials is better, and the improvement of biogas producing efficiency is facilitated,but also deslagging is facilitated, the adjustability is stronger, and the use ratio of biogas slurry is higher.

Description

technical field [0001] The invention relates to a biogas digester, which belongs to the field of biogas fermentation, and in particular to an automatic thickening thick straw biogas digester, which is specifically suitable for improving the mixing degree of raw materials and biogas liquid, and the mixing uniformity between raw materials, thereby increasing gas production efficiency. Background technique [0002] At present, the fermentation raw materials used in most biogas projects in China are in the liquid state of poultry manure. Therefore, most of the feeding devices used are liquid pumps. This type of feeding device limits the solid content to 5%. The particle size is about 2 cm. If the pure straw raw material is more than double these two figures, it will be difficult to realize the biogas project with the pump as the feeding device. The pure straw raw material also has one of the biggest characteristics in the liquid, that is, it is in a floating state. [0003] Th...

Claims

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Application Information

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IPC IPC(8): C12M1/107C12M1/00
Inventor 方旭华
Owner 方旭华
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