Large-scale high-mass-transfer circulating type ventilation fermentation tank

Abstract

The invention discloses a large-scale high-mass-transfer circulating type ventilation fermentation tank, and relates to the technical field of biological fermentation. The large-scale high-mass-transfer circulating type ventilation fermentation tank comprises a fermentation tank body, wherein a cooling injection pipe is arranged in the fermentation tank body; a circulating cylinder is further fixedly arranged in the fermentation tank body, and openings are formed in the top and the bottom of the circulating cylinder; the bottom of the circulating cylinder is connected with a ventilation pipe,the first end of the ventilation pipe is arranged at the bottom in the circulating cylinder, and the second end of the ventilation pipe extends out of the fermentation tank body; the first end of theventilation pipe is opened downwards and connected with an air distribution head, the top of the air distribution head communicates with the first end of the ventilation pipe, an outlet is formed in the bottom, and a three-phase mixing disturbance device is connected below the outlet; the side wall of the air distribution head is connected with a three-phase mixing thruster and a three-phase mixing chest expander through an air distribution pipe, the three-phase mixing thruster is arranged in the circulating cylinder, and the three-phase mixing chest expander is arranged outside the circulating cylinder. The large-scale high-mass-transfer circulating type ventilation fermentation tank aims to provide good engineering conditions for ventilation biological reaction, realizes complete removalof mechanical stirring and improves the energy-saving effect in the fermentation process.

Description

technical field [0001] The invention relates to the technical field of biological fermentation, in particular to a large-scale high-mass transfer circulation ventilated fermenter. 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. For decades, no major breakthroughs have been seen in fermentation equipment, and there have always been high energy consumption and ventilation in the fermentation process. The status quo of low oxygen utilization; [0003] In the 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 stirring for fermentation accounts for 20% to 40% of the total energy consumption; The state of the fermentation process is analyzed in terms of fluid mechani...

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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. For decades, no major breakthroughs have been seen in fermentation equipment, and there have always been high energy consumption and ventilation in the fermentation process. The status quo of low oxygen utilization;

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