Ferment tank for marsh gas

Abstract

The invention discloses a methane fermentation cylinder, and its structure: a feeding pipe is connected with one end of a fermentation pipe, and a baffle plate is arranged at the junction to separate the fermentation pipe from the top of the feeding pipe, there is a discharging pipe and another outlet made on the other end of the fermentation pipe, where the outlet is connected with a return pipe, the return pipe is connected with the bottom of the fermentation pipe, there is a return pump installed on the return pipe, and there is a gas outlet connected with the fermentation pipe and a pressure meter arranged outside the top of the fermentation pipe. As installed, the fermentation pipe should make a certain angle with the installation surface to assure fermenting raw materials to slowly creep from the upper of the fermentation pipe to the lower, and the fermentation residues can be easy to discharge. It has the advantages of discharging convenience, high gas output, good airtight property, large effective fermenting area, good effect of preserving heat, simple structure, low cost of manufacture, convenient construction, continuous operating, etc.

Description

technical field [0001] The invention relates to the field of energy technology. Background technique [0002] Biogas has been popularized in rural areas of our country for nearly 40 years, and the economic and social benefits brought by the development of biogas have been shown. Several traditional biogas fermentation tanks commonly used at present are: vertical circular hydraulic biogas digester, vertical circular floating cover biogas digester, vertical circular semi-buried biogas digester, rectangular (or square) fermentation tank, combined Digesters and upflow sludge bed reactors. However, the structure of the commonly used traditional biogas fermentation tank itself is not perfect, which has caused several problems such as difficult discharge, low gas production rate, unsatisfactory airtight performance, and difficult construction technology: [0003] (1) Difficult discharge: the depth of the commonly used biogas fermentation tanks is relatively deep, and the depth of...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a biogas fermentation tank, which can effectively and reasonably solve the problems of difficult discharge, low gas production, unsatisfactory airtightness and construction problems of traditional biogas fermentation tanks. technically difficult issues

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