Aerobic sludge fermentation equipment

Abstract

The invention discloses aerobic sludge fermentation equipment in the technical field of sludge treatment, comprising a reaction tank, the reaction tank includes a collection tank and a fermentation tank, the collection tank is located on the left side of the fermentation tank, and the inner wall of the fermentation tank is A crushing device is provided, and a pre-crushing device is provided on the inner wall of the fermentation tank, and the pre-crushing device is used for pretreatment and crushing of the sludge lumps that need to be crushed by the crushing device; the present invention can make the After dehydration, the cake-like or lumpy sludge is preliminarily crushed. At the same time, the function of the guide rod can prevent the sludge falling from the first belt from accumulating in one place. The setting of the pre-crushing device can pre-break the sludge. The role of crushing can prevent the sludge from accumulating and can be crushed at the same time. It can make the bacteria in the sludge better contact with the air, make the sludge ferment better, and speed up the fermentation process of the sludge.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to aerobic sludge fermentation equipment. Background technique [0002] Sludge aerobic fermentation is a harmless, volume-reducing, and stabilized sludge comprehensive treatment technology, also known as aerobic composting technology. It uses the action of aerobic thermophilic bacteria to decompose the organic matter in the sludge to form a substance similar to humus soil. During the metabolic process, heat is generated, which can raise the temperature of the stockpile layer to above 55°C, which can effectively kill pathogens. , parasite eggs and viruses, and increase sludge fertilizer; a large number of studies have shown that: when the moisture content of sludge is lower than 30%, the ability of microorganisms to extract nutrients in water is reduced, and the decomposition of organic matter is slow; when the moisture content is lower than 12%~15% When the water content e...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, when belt filter press is used for sludge dehydration treatment, the sludge after pressure filtration will fall and accumulate in the form of cakes or lumps. Although the moisture in the sludge is reduced, the sludge itself will form cakes. Shaped or lumpy, it may affect the oxygen absorption of the bacteria in the subsequent fermentation treatment, and may slow down the process of sludge fermentation

Images