Emulsifying-type aerobic fermentation tank

Abstract

The present invention discloses an emulsifying-type aerobic fermentation tank. According to the aerobic fermentation tank in the prior art, increase of compressed air consumption and improvement of stirring motor power can not significantly increase specific yield, and can cause energy consumption increasing, product cost improving, equipment cost increasing and operating environment deterioration. The emulsifying-type aerobic fermentation tank of the present invention comprises a tank body and a gas-liquid mixing circulation apparatus, wherein the gas-liquid mixing circulation apparatus is located inside the tank body, and has at least two stages of gas-liquid mixers. The gas-liquid mixing circulation apparatus is arranged vertically. The tank body is provided with a tank body gas inlet pipe and a fermented liquid inlet pipe. The tank is characterized in that: a self-suction air ejection emulsifying supercharging device is arranged between the gas-liquid mixing circulation apparatus and the inner wall of the tank body. With the tank of the present invention, oxygen utilization rate, mass transfer rate, dissolved oxygen coefficient and specific yield are improved, energy is substantially saved, the equipment is simplified, the microbiological contamination rate is reduced, the equipment cost and the maintenance cost are reduced, and the service life of the fermentation tank isprolonged.

Description

technical field [0001] The invention relates to the field of bioengineering aerobic fermentation, in particular to an emulsification type aerobic fermentation tank. Background technique [0002] The fermentation tank is the key biochemical reaction equipment in the industrial production of aerobic fermentation. In the production of biological fermentation, the transmission stirring device with multi-stage mechanical stirrer in the tank and the general-purpose fermentation with various forms of ventilation devices at the bottom of the tank are widely used today. Can. In the process of biological fermentation, aerobic bacteria need oxygen in the air to grow and develop, metabolize and produce metabolites. In this regard, sufficient dissolved oxygen is a necessary condition for the production of bacterial vitality and synthetic products. In production practice, in order to satisfy the amount of dissolved oxygen of aerobic microorganisms, so that it can obtain the required meta...

AI Technical Summary

Problems solved by technology

Since the mass transfer mechanism of the general-purpose fermenter is bubbling mass transfer, and its flow characteristics are plug flow, it must have the disadvantages of low oxygen utilization rate and low dissolved oxygen coefficient.

Therefore, increasing the amount of compressed air and increasing the power of the stirring motor is not obvious for increasing the unit output, and it will cause increased energy consumption, increased product cost, increased equipment cost and worsened operating environment.

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