High-solid circulating anaerobic reactor

Abstract

A high-solid circulating anaerobic reactor comprises a tank body and at least one turning and lifting unit, wherein each turning and lifting unit is arranged in the tank body and comprises a driving wheel, a transmission device, a support and a driven wheel, the transmission device is mounted at the upper part of the support, a guiding barrel is arranged on the transmission device, a discharge port and a feed port are formed in the upper part and the lower part of the guiding barrel respectively, the driving wheel is connected with the output end of the transmission device, the driven wheel is mounted at the lower part of the support, a transmission belt is connected between the driving wheel and the driven wheel, and turning and lifting pieces are distributed on the transmission belt. According to the high-solid circulating anaerobic reactor, the circulating lifting disturbance units are arranged in the tank body, a material in the tank body is lifted from bottom to top and drops, so that whole rolling and stirring of the material are formed along the tank body from bottom to top, and the high-solid circulating anaerobic reactor is particularly suitable for fermentation treatment of muddy and highly-pasty solid waste with higher viscosity or higher solid content and is high in adaptability and convenient to manufacture and maintain, and the phenomenon of raw material sedimentation on the wall surface and at the bottom of the tank body can be prevented.

Description

technical field [0001] The invention relates to a device for anaerobic fermentation treatment of solid waste, belonging to the technical field of anaerobic fermentation. Background technique [0002] Anaerobic fermentation is one of the effective ways to deal with organic solid waste, and the waste is stabilized by the metabolic activities of microorganisms under anaerobic conditions. Anaerobic fermentation is usually carried out in an anaerobic fermentation tank, which provides excellent conditions for the growth of microorganisms and satisfies the growth and reproduction of microorganisms. In an anaerobic fermenter, these organisms perform their catalytic or metabolic functions. Since there is no dissolved oxygen, there is no need for high-speed stirring in the anaerobic fermentation tank, and even stirring is only for mixing. It is also possible to feed nitrogen into the anaerobic fermentation tank, but it will increase the operating cost. [0003] Anaerobic fermentati...

AI Technical Summary

Problems solved by technology

The agitator in the fermenter is mainly to stir the fermented liquid, so that the fermented liquid is partially tumbling and mixed along the radial direction of the tank, which cannot form an overall disturbance in the tank from bottom to top. Solid waste is also not applicable

At the same time, since the rotating shaft is installed on the inner wall of the tank, it is difficult to manufacture and inconvenient to maintain

In addition, the bottom of the tank cannot be fully stirred by the agitator, and there is often a phenomenon of raw material deposition caused by uneven stirring

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