Hydraulic stirring anaerobic tank

Abstract

The invention discloses a hydraulic stirring anaerobic jar, which comprises a jar body. A sludge discharge device is arranged at the bottom layer of the jar body, at least two hydraulic stirring devices are arranged on the peripheral wall of the jar body above the sludge discharge device in a surrounding manner; each hydraulic stirring device comprises a stirring water pumping pipe, the end part of the stirring water pumping pipe is inserted in the jar body, the stirring water pumping pipe is connected with a sludge pump, and the sludge pump is connected with a swirl generator. According to the hydraulic stirring anaerobic jar, the hydraulic stirring devices pump anaerobic liquid out of an anaerobic decomposition area by utilizing the sludge pump, repeatedly charge the pumped anaerobic liquid into the lower layer in the jar body to form swirls, so that sludge including anaerobe in the lower layer is fully mixed with the anaerobic liquid; along with the cycle operation of the sludge pump, the anaerobe in the anaerobic decomposition area is fully attached to the surfaces of organic matters, so that the anaerobic efficiency is greatly improved; the reaction state of an acidification reaction area is not broken, and meanwhile, the acidification reaction is facilitated; the structure is simple, the maintenance is convenient, and the sludge gas output efficiency of the anaerobic jar is greatly improved.

Description

technical field

[0001] The invention relates to the technical field of biogas, in particular to an anaerobic tank. Background technique

[0002] The upper part of the anaerobic tank is the acidification reaction zone, and the lower part of the anaerobic tank is the anaerobic decomposition zone. In order to increase the contact between organic matter and anaerobic bacteria, the agitation of the anaerobic tank is the key condition to improve the efficiency of sludge anaerobic digestion. Stirring can Make anaerobic bacteria and organic matter mix quickly, and promote the separation of biogas and digestive juice.

[0003] Most of the existing technologies use mechanical stirring, that is, a propeller is installed in the anaerobic tank, which is driven by a motor outside the tank to rotate to stir the digestion mixture. The disadvantages are: 1. The transmission part is easy to wear and the maintenance is extremely difficult; 2. It is easy to cause anaerobic bacteria in the anae...

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