CSTR fermentation tank discharging system used for mixing of plurality of materials, and technology

Abstract

The invention discloses a CSTR fermentation tank discharging system used for mixing of plurality of materials. The CSTR fermentation tank discharging system used for mixing of plurality of materials comprises a plurality of CSTR fermentation tanks, sludge discharge pipes, material discharge pipes, backflow pipes, a sludge discharge material discharge power system, and a discharging pipe; each CSTRfermentation tank is provided with one sludge discharge pipe, one material discharge pipe, and one backflow pipe; each sludge discharge pipe is provided with a sludge discharge valve; each material discharge pipe is provided with a material discharge valve; each backflow pipe is provided with a backflow valve; the tail end of each sludge discharge pipe and the tail end of a corresponding materialdischarge pipe of each CSTR fermentation tank are connected. The CSTR fermentation tank discharging system is capable of realizing combination of a material discharge system and a sludge discharge system, and realizing time-sharing control. The sludge discharge systems and the material discharge systems of the plurality of CSTR fermentation tanks are connected, and are connected with the sludge discharge material discharge system. The discharging pipe of the whole anaerobic fermentation discharging system is arranged at the tail end of the discharge system; and the discharging pipe is provided with a discharge valve for discharging control. The invention also provides discharging technology using the CSTR fermentation tank discharging system.

Description

technical field [0001] The invention relates to the technical field of anaerobic fermentation, in particular to a CSTR fermenter discharge system and process for mixing multiple raw materials. Background technique [0002] Conventional CSTR anaerobic fermentation tanks usually adopt the overflow discharge system formed by feeding in from the bottom up, and the gravity sludge discharge system formed by the elevation difference of the tank itself, which is operated separately, to maintain the normal operation of the CSTR anaerobic fermentation tank and ensure There is no material deposition or hardening inside the tank. [0003] For the fermentation of mixed raw materials (the raw materials are mainly straw and livestock and poultry manure), due to the high content of cellulose, hemicellulose and lignin in the straw, the conventional unpowered discharge and sludge discharge system will easily lead to overflow pipes and sludge discharge. The pipeline is blocked by fibers and c...

AI Technical Summary

Problems solved by technology

[0003] For the fermentation of mixed raw materials (the raw materials are mainly straw and livestock and poultry manure), due to the high content of cellulose, hemicellulose and lignin in the straw, the conventional unpowered discharge and sludge discharge system will easily lead to overflow pipes and sludge discharge. The pipeline is blocked by fibers and crystalline substances; and the overall fermentation concentration of the mixed raw materials is high, and the elevation difference of the tank itself often cannot realize gravity sludge discharge

[0004] Therefore, the current CSTR anaerobic fermentation tank discharge system cannot be applied to the CSTR fermentation tank discharge of multi-material mixed fermentation; in addition, the current development trend of biogas projects is large-scale development, no longer a single tank for fermentation, large-scale development There are more and more anaerobic fermentation tanks in a biogas engineering project. If the unified control of multiple tanks can be realized, the advantages of scale can be fully utilized

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