Operating method of CSTR integrated reactor in marsh gas resourceful treatment system

Abstract

The invention discloses an operating method of a CSTR integrated reactor in a marsh gas resourceful treatment system. In the CSTR integrated reactor, a reverse-flow system and a reverse stirring device are added, so that the stirring efficiencies for smashed straw and anaerobic fermentation liquid can be effectively improved; in the stirring process, a material can form convection between two stirring blades, so that the problem that the traditional blender only stirs but not mixes the material is solved, and thus the efficiency of producing methane by adopting straw is improved; meanwhile, a screw propeller is arranged at a material outlet, so that a waste material can be rapidly discharged from a tank.

Description

[0001] The application of the present invention is a divisional application of the parent application "Biogas Resource Treatment System Based on CSTR Fermentation Device", the application number of the parent application is 2015101796836, and the application date is April 15, 2015 technical field [0002] The invention belongs to the technical field of biogas preparation, in particular to an operation method of a CSTR integrated reactor in a biogas resource treatment system. Background technique [0003] my country is a large agricultural country, and the sown area of ​​crops ranks first in the world. According to statistics, my country currently produces about 700 million tons of straw every year. In the past, crop straws were mostly used as fuel, but with the continuous improvement of people's living standards in our country, as well as the development of rural economy and the improvement of energy supply, in recent years, farmers' burning and utilization of straws have gra...

AI Technical Summary

Problems solved by technology

[0004] Straw dry fermentation to produce biogas is rice, corn, peanut and other crop straw as raw material, after crushing and adding fermentative agent for stack retting and other pretreatments, it is added to anaerobic fermentation device for anaerobic fermentation to produce biogas and organic fertilizer. In industrial production, CSTR reactor (continuous stirred tank reactor, continuous stirred reactor system) is usually used as an anaerobic fermentation device to produce biogas. The stirring efficiency of traditional anaerobic fermentation devices needs to be improved, and the level of stirring efficiency directly affects the straw Fermentation efficiency and biogas production rate; In addition, when the fermentation is completed, the waste needs to be discharged from the fermentation device. Because the waste has a certain viscosity, the waste is not easy to discharge and the waste often sticks to the inner wall of the device.

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