Ultra-large type straw methane tank

Abstract

The invention discloses an ultra-large type straw methane tank. The ultra-large type straw methane tank comprises a fermenting tank surrounded by water tanks; a flooding supporting plate with small holes is arranged at the upper part of a fermenting region and is connected with a methane liquid pipe; the methane liquid pipe is communicated with a methane liquid region through a circulating pump; a gas collecting cover is arranged on the flooding supporting plate and above the fermenting tank; and the lower part of the gas collecting cover is connected with a negative pressure gas collecting and storage device through a gas collecting pipe, and the negative pressure gas collecting and storage device is arranged outside the fermenting tank. The methane liquid in the methane liquid region islifted to the flooding supporting plate through the circulating pump, spreads in the double-layer belt holes of the flooding supporting plate and can completely cover the upper surface of the fermenting region, so that flooding is uniform, the contact area of the methane liquid and the straws is increased, the flooding quantity is easy to control, a large space is saved, and the utilization ratioof the tank capacity is increased.

Description

technical field [0001] The invention belongs to the technical field of biogas digesters, and particularly relates to an ultra-large straw digester. Background technique [0002] At present, with the acceleration of the construction of new rural areas, many tasks related to agriculture, rural areas and farmers are in place. For most agricultural areas in China, the construction of biogas digesters, especially large-scale digesters, has also become an important piece of work. On the one hand, It is the problem of clean energy, and on the other hand, the problem of digesting straw. There are many reasonable and reliable ways to solve the two aspects. However, in practice, the biogas digester technology that should be industrialized and has achieved certain results has always been a concern of everyone. With the deepening of the Second Five-Year Plan, rural biogas digesters will usher in a great opportunity for development. The current problem with biogas digesters is that, on ...

AI Technical Summary

Problems solved by technology

The problems existing in the current biogas digesters are that, on the one hand, the gas production capacity of the biogas digesters is insufficient, the throughput of materials is small, and the degree of industrialization is not high; Conducive to saving manpower and material resources

However, there are several problems. On the one hand, the spraying effect of the nozzle is not good enough to penetrate evenly on the entire straw pile. In addition, the spraying form requires a large space, which will inevitably affect the amount of materials added; in addition, The original form of biogas collection and transportation makes the gas have a certain pressure under the pressure of the soft cover, which is easy to leak and has certain safety hazards. The outer cover of the soft cover is equipped with a fixed cover, which is very inconvenient for materials to enter and exit.

Images