Double-mode methane tank

Abstract

The invention discloses a double-mode methane tank. The double-mode methane tank comprises a water tank which is open or arranged on the methane tank and the wall of the methane tank and surrounds the tank, wherein the water tank is hermetically connected with a cover through water; and a gas collecting pipe and a gas return pipe communicated with a gas storage cabinet are arranged on the wall of the tank. The gas return pipe is communicated with the pipelines of a plurality of nozzles arranged in the methane tank, so that excrement can be automatically stirred and the gas stirring effect is achieved. Equipment, which is used for extracting methane liquid and arranged in the methane tank, is connected with spraying equipment arranged above straws. The straws can be automatically sprayed. A boss extending out of the tank wall is correspondingly arranged on the inner side of the tank wall in a position near the liquid level, so that an excrement tank and a straw tank are switched well, the resources can be utilized well by utilizing the tank type according to the actual local condition, the straw fermenting mode is used when the excrement is insufficient, the excrement fermenting mode is used when the straws are insufficient, and the gas yield and the utilization ratio of the methane tank are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of biogas pit structures, in particular to a dual-mode biogas pit. Background technique [0002] As a kind of waste commonly used in rural areas, feces can be used as traditional fertilizers, allowing them to accumulate and ferment naturally for 5 to 6 months. In special cases, it takes about 40 days to two months. On the one hand, the smell is emitted, which pollutes the environment It also causes a large loss of nutrients. The use of microbial fermentation to treat manure to obtain biogas can not only speed up the fermentation process of manure, shorten the fermentation time, and prevent waste, but also turn waste into treasure through fermentation, turning waste that is easy to pollute the environment into a clean energy source. It can be used for heating, lighting, energy saving, low cost, simple operation, easy to popularize, human manure, chicken manure, pig manure, cattle and sheep manure, duck m...

AI Technical Summary

Problems solved by technology

[0003] However, there has always been such a problem in the design of biogas digesters. A design of a pond, such as a septic pond or a straw pond, can only achieve biogas fermentation of a fermented product, and in rural areas, manure and straw are often very sufficient , whichever one is not used will be a big waste, and the two cannot be used conveniently and effectively interactively, which is not only not conducive to the rational allocation of resources, but also a waste of valuable straw or manure

In addition, in the design of septic tanks, especially some large-scale tanks, the feces are not always well distributed in the tank, resulting in the phenomenon that some areas in the tank produce more gas, while some areas produce less gas, and the feces fermentation is inconsistent. The physical and chemical properties of feces in the biogas slurry will be affected, which will bring some troubles to the feeding and discharging, because it may happen that some of them have been fermented and have no use value, but the other part has not been obtained. Effective fermentation, if all the materials are discharged, the raw materials will be wasted, and if the materials are not discharged, the quantity and quality of the gas produced cannot be guaranteed

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