Self-mixing circulating type ventilation fermentation tank

Abstract

The invention discloses a self-mixing circulating type ventilation fermentation tank, and relates to the technical field of fermentation tanks. The self-mixing circulating type ventilation fermentation tank comprises a tank body, a cooling coil pipe is arranged in the tank body, a circulating cylinder is fixed in the tank body, the upper end and the lower end of the circulating cylinder are open, a plurality of annular distribution pipes with different inner diameters are fixed at the bottom of the tank body, and the circulating cylinder is located on the inner rings of the annular distribution pipes; and the annular distribution pipes communicate with an air outlet of an air main pipe, an air inlet of the air main pipe penetrates through the side wall of the tank body, the air inlet of the air main pipe is connected with an air source, and each annular distribution pipe is provided with a plurality of three-phase mixers. Self-mixing circulation of fermentation liquor in the tank body is achieved by means of directional flowing of gas, liquid and solid phases in the tank body, an additional stirring device does not need to be additionally arranged, and energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of fermentation tanks, in particular to a self-mixing circulation ventilation fermentation tank. Background technique [0002] Almost all domestic fermentation industries such as antibiotics, vitamins, amino acids, and organic acids use general-purpose ventilated stirring reactor technology for industrial production. Since North China Pharmaceuticals put into industrial production of penicillin in 1958, there has been no large-scale fermentation equipment for more than 60 years. However, there have always been the status quo of poor engineering conditions in the fermentation process, large energy waste, high energy consumption, and low utilization rate of ventilation oxygen; [0003] In the ventilation and aerobic fermentation industry, energy consumption (air oxygen supply, steam disinfection, stirring power consumption, circulating water cooling) accounts for 20% to 30% of the total product cost, and the s...

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Problems solved by technology

[0002] Almost all domestic fermentation industries such as antibiotics, vitamins, amino acids, and organic acids use general-purpose ventilated stirring reactor technology for industrial production. Since North China Pharmaceuticals put into industrial production of penicillin in 1958, there has been no large-scale fermentation equipment for more than 60 years. However, there have always been the status quo of poor engineering conditions in the fermentation process, large energy waste, high energy consumption, and low utilization rate of ventilation oxygen;

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