Ultrasonic-assisted rapid straw anaerobic fermentation equipment

Abstract

The invention discloses ultrasonic-assisted rapid straw anaerobic fermentation equipment. The equipment structurally comprises a sight glass device, an anti-dross crusting device, an anaerobic fermentation tank and support legs, wherein the bottom of the anaerobic fermentation tank is connected with three support legs arranged at equal intervals, the sight glass device is mounted on one side of the top of the anaerobic fermentation tank, and the anti-dross crusting device is further arranged on the anaerobic fermentation tank. Compared with the prior art, the equipment has the beneficial effects as follows: a dross layer is stirred by an anti-dross crusting plate to prevent lignocelluloses from crusting, cellulose, hemicelluloses and lignin intertwined structures can be dissolved by a dispersion and dissolution promoting assembly, the crusting phenomenon can be effectively prevented, fermentation of straw is facilitated while manual clearing is not required, continuous pumping can be realized by boosting and bubble removal to boost to make bubbles burst so as to remove bubbles, a pumping ring is arranged to increase the pumping travel and increase the pumping volume, and the bubbleremoval efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of anaerobic fermentation equipment, in particular to ultrasonic-assisted rapid anaerobic fermentation equipment for straw. Background technique [0002] Crop straw resources are the most abundant renewable resources on the earth, and biogas can be produced through anaerobic fermentation. Since straw is a biomass containing a large amount of lignocellulose, it is difficult to be directly decomposed by bacteria, so most straws are treated with ultrasonic waves before fermentation. Do preprocessing. [0003] Because the density of the straw is lower than that of the fermentation broth, the straw is easy to float on the surface of the fermentation broth to form scum. Since the straw is a biomass containing a large amount of lignocellulose, its cellulose, hemicellulose, and lignin are intertwined. structure, and the existing anaerobic fermentation equipment is not perfect in technology, during the fermentation ...

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Problems solved by technology

[0003] Because the density of the straw is lower than that of the fermentation broth, the straw is easy to float on the surface of the fermentation broth to form scum. Since the straw is a biomass containing a large amount of lignocellulose, its cellulose, hemicellulose, and lignin are intertwined. structure, and the existing anaerobic fermentation equipment is not perfect in technology, during the fermentation process, as time goes by, these scums tend to form thick shells on the surface of the fermentation liquid, and the existence of shells is not conducive to the fermentation of straw. At the same time, manual cleaning is required after crusting, which is difficult to clean manually.

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