Vertical fermenting tank

Abstract

The invention relates to a vertical fermenting tank, and belongs to the technical field of zymology-device chemistry. The fermenting tank comprises a vertical tank body, a motor, a speed reducer driven by the motor and a stirring shaft; the lower end of the stirring shaft penetrates through the tank body, a plurality of stirring paddles are arranged at the lower end of the stirring shaft at intervals, a plurality of spiral channels are sequentially formed in the inner wall of the tank body at intervals from top to bottom, each spiral channel is defined and jointed by a plurality of spiral blades fixed on the inner wall of the tank body in the central axis of the tank body, the spiral lifting angle of each spiral channel ranges from 15 degrees to 20 degrees, a through channel for containing the stirring paddles is formed in each spiral channel, each stirring paddle is located at the lower end of the corresponding spiral channel and has the angle same as the angel of the spiral lifting angle of the corresponding spiral channel, and a lifting plate slanting towards the stirring shaft with the angle of 30 degrees to 40 degrees is arranged at the upper end of the spiral channel. The fermenting tank has the advantages that the structure is simple, the diameter and the rotating speed of the stirring device do not need to be increased, and the dissolved oxygen rate can be remarkably increased.

Description

technical field

[0001] The invention relates to a fermentation tank, which belongs to the chemical technical field of fermentation equipment. Background technique

[0002] A fermenter is an external environmental device for microorganisms to grow, reproduce and form products during fermentation. It replaces traditional fermentation vessels and plays an important role in continuous scale production, increasing yield and yield.

[0003] In recent years, China's biological fermentation technology and equipment level have made great progress, but the fermentation tank has been a consistent system for decades, using standard mechanical stirring and ventilating fermentation tanks, and many factories are still using pure runoff mixing systems And tubular spargers generally have disadvantages such as high energy consumption, low dissolved oxygen rate, and low substrate conversion rate.

[0004] With the continuous use of high-yield strains, the structure of standard mechanically ag...

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