Large-sized methane solid fermentation apparatus and usage thereof

Abstract

The invention discloses a large-sized methane solid fermentation apparatus, comprising a fermentation area and a UASB (upflow anaerobic sludge blanket) reactor arranged on one side of the fermentation area. The UASB reactor comprises a reactor body, the top of the reactor body is provided with a reactor exhaust port and a reactor liquid outlet respectively, the bottom is provided with a reactor liquid inlet, and the inside is provided with a three-phase separator; the fermentation area includes multiple fermentation tank sets built underground, each fermentation tank set includes a plurality of fermentation tanks each covered with a light-pervious shed, the fermentation tanks are cylindrical, the center of each fermentation tank is provided with a tubular column, the upper end of this column extends out of the upper portion of the corresponding fermentation tank, the lower end of this column extends to the bottom of the corresponding fermentation tank and is also sleeved with a filter enclosure, and a beam platform formed by laying a plurality of steps between the columns and supports. Compared with the prior art, the apparatus of the invention is simple in structure and reasonable in design, is space-efficient and is higher in utilization rate of methane slurry material since the UASB reactor is provided to secondarily ferment methane slurry.

Description

technical field [0001] The invention relates to the field of rural energy reuse, in particular to a large-scale biogas solid-state fermentation device and a use method thereof. Background technique [0002] With the development of our country's economy and social progress, the life of urban residents has been further improved, but there are still many problems in the life of rural residents. In order to build a well-off society in an all-round way, it is very necessary to build a new socialist countryside, which requires the grand goal of developing rural ecological agricultural production methods, improving the rural environment, and increasing farmers' income. Among them, the comprehensive utilization of biogas digesters is an important way to change the rural environment. The construction of a biogas digester can be used for about 20 years. The comprehensive utilization of biogas digesters can not only save energy, improve and protect the environment, but also save chemic...

AI Technical Summary

Problems solved by technology

Traditional biogas digesters are built on the ground, which not only takes up a lot of space, but also is not conducive to winter heat preservation and safe overwintering; the shape is rectangular, because there are four corners, the construction is relatively difficult, and the force in the biogas digester is likely to be uneven, and the output is uneven. Convenience; it is inconvenient to stir the biogas tank on the ground, not only need to set up an elevated shelf above the biogas tank for mixing, but also it is inconvenient to feed

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