Method for producing methane in secondary synchronous methane fermentation system

A secondary fermentation and methane fermentation technology, applied in the field of biogas fermentation system, can solve the problems of short fermentation route, poor biogas convection effect, low utilization rate of fermentation raw materials, etc., achieve long fermentation route, improve fermentation efficiency, and promote the effect of stirring

CN104560682AActive Publication Date: 2015-04-29徐州金港起重机制造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-04-29

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Abstract

The invention discloses a method for producing methane in a secondary synchronous methane fermentation system. The method comprises the following steps: fermenting to produce biogas in a primary fermentation system, and gathering the biogas in the side walls of a charging / discharging barrel and adjacent gas baffles or in a fermentation area formed between adjacent gas baffles; extruding the biogas slurry in a primary fermentation pipeline to flow to a first water guide pipe and a second water guide pipe, and finally allowing the biogas slurry to flow into a secondary fermentation pipeline; fermenting to produce biogas in a secondary fermentation system, and gathering the biogas between the side walls of a secondary feeding / discharging pipe and adjacent gas baffles or in a fermentation area formed between the adjacent gas baffles, allowing the biogas slurry to flow into a water pressure room in a one-way mode by virtue of a secondary discharging pipe, and allowing the biogas slurry in the secondary fermentation pipeline to flow into the water pressure room by virtue of a drainage pipe of a bacteria distribution device when the liquid level of the biogas slurry in the water pressure room reaches the lowest position of the upper part of the drainage pipe of the bacteria distribution device.
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Description

technical field

[0001] The invention relates to a biogas fermentation system, in particular to a multistage biogas fermentation system. Background technique

[0002] Biogas, the chemical name; methane, as the name implies, is the gas in the swamp; with the development of biogas science and technology in China and the promotion of household biogas in rural areas, according to local use requirements and conditions such as temperature and geology, household biogas pits have fixed arch cover water pressure Type pool, large uncovered hydraulic pool, hanging pipe hydraulic pool, meandering cloth hydraulic pool, top return hydraulic pool, separated floating cover pool, semi-plastic pool, all-plastic pool and tank pool. Although there are various forms, they are generally formed by four basic types of changes: hydraulic biogas digesters, floating cover biogas digesters, semi-plastic biogas digesters and tank-type biogas digesters.

[0003] The existing biogas still has many proble...

Examples

Embodiment Construction

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0045] Such as Figure 1-7As shown, the secondary synchronous methane fermentation system includes a primary fermentation system 10 and a secondary fermentation system 40, and a support 60 is arranged at the bottom of the secondary fermentation system 40, so that the position of the secondary fermentation system 40 is higher than that of the primary fermentation system 10. The basic principle is that when biogas is produced by fermentation in the primary ferment...