Separate floating cover type novel methane fermentation device

Abstract

The invention discloses a novel biogas fermentation device of separation floating cover type, which comprises a first fermentation room (1), a second fermentation room (2) and a third fermentation room (3) which are sequentially connected from top to bottom. A fermentation room (1) is provided with a steam input pipe (80), a valve is provided between two adjacent fermentation rooms, and a valve is provided in the second fermentation room (2) and the third fermentation room (3). There is a diffusion device; the three fermentation rooms are equipped with annular air pipes, and each of the annular air pipes passes through the corresponding fermentation room, and the annular air pipes between two adjacent fermentation rooms protrude The ends are connected to each other, and the corresponding steam pipes are externally connected to the connected positions. The present invention is provided with three fermentation rooms connected from top to bottom, and is equipped with a diffusion device, and an annular air pipe connected to a steam conduit, while controlling the temperature, it can also discharge materials in a timely manner without affecting the continuity of fermentation. The fermentation efficiency is improved, and the output of biogas is increased.

Description

technical field [0001] The invention relates to the technical field of biogas fermentation, in particular to a novel biogas fermentation device of separation floating cover type. Background technique [0002] The traditional agricultural biogas fermentation device has four disadvantages: First, it is difficult to stir in the fermentation room. Over time, the old slag in the tank cannot be discharged circularly, forming a broken circuit of the fermentation material in and out, and the sustainable imbalance of microbial metabolic activities, which affects the full fermentation of raw materials. , which reduces the gas production; second, the performance of the biogas fermentation process is significantly affected by the operating temperature, and the gas production may stop when it is lower than 10°C; third, the traditional agricultural biogas digesters are generally buried underground, which makes it extremely inconvenient to discharge the biogas digester and affects the bioga...

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Problems solved by technology

[0002] The traditional agricultural biogas fermentation device has four disadvantages: First, it is difficult to stir in the fermentation room. Over time, the old slag in the tank cannot be discharged circularly, resulting in an open circuit of the fermentation material in and out, and the sustainable imbalance of microbial metabolic activities, which affects the full fermentation of raw materials. , which reduces the gas production; second, the performance of the biogas fermentation process is significantly affected by the operating temperature, an

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