Large fermentation tank stirring device and stirring method

Abstract

The invention provides a large fermentation tank stirring device and a stirring method. The large fermentation tank stirring device comprises a tank body, a stirring device body in the tank body and a control system. The large fermentation tank stirring device is characterized in that the stirring device body comprises a central shaft and at least two blade shafts, the central shaft is vertically arranged in the middle of the tank body, a rotary disc is arranged on the central shaft, the central shaft is driven by a central shaft movement driving motor and drives the rotary disc to rotate, the blade shafts are arranged on the rotary disc, stirring blades are arranged on each blade shaft, and each blade shaft is driven by a blade shaft driving motor to be in autorotation while being along with revolution of the rotary disc. The control system controls linkage and rotating speed of the central shaft movement driving motor and the blade shaft driving motor and rotating direction of the blade shafts to realize autorotation and revolution of the blade shafts, and materials in the tank body are stirred by the blades on the blade shafts. By using the large fermentation tank stirring device, fermentation liquid can be fully stirred, fermentation quality can be improved, and stirring energy consumption and power consumption in delivering filtered air into the bottom of the tank body can be lowered.

Description

technical field [0001] The invention relates to a stirring device and a stirring method, which are mainly used in the production of pharmacy, food and citric acid, and belong to the technical field of chemical equipment, in particular to a large-scale fermentation tank stirring device and a stirring method. Background technique [0002] Large-scale fermentation tank equipment is special equipment for the fermentation production process of pharmaceutical, food and citric acid production enterprises. Large-scale fermentation tank is a vertically installed cylindrical container with a diameter of more than 6 meters and a height of about 8 meters. . The top of the fermenter is designed with a feed inlet, the side wall of the tank is designed with a cooling pipe, the inside of the tank is equipped with an agitator, and the bottom of the tank is equipped with a filtered air inlet. During the fermentation process, the filtered fresh air is continuously input into the fermentation ...

AI Technical Summary

Problems solved by technology

However, so far, the focus of research on energy saving and consumption reduction of large-scale mixing tanks has been based on the research and development of high-efficiency motors and high-efficiency energy-saving mixing blades based on the premise of single-shaft stirring, but all have not achieved ideal results. Effect

[0005] Therefore, this is a technical problem that has plagued the art for a long time, and the contradiction between large-scale fermenter and energy saving has not been well resolved so far.

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