A self-priming fermentation tank is a type of fermentation tank that does not require an air compressor to provide pressurized air, but relies on a specially designed mechanical stirring suction device or liquid jet suction device to suck in sterile air and simultaneously achieve mixing, stirring, and dissolved oxygen mass transfer.

applied toDomestic vinegar factories, yeast factories, and pharmaceutical factories have adopted this fermentation equipment.

Self suction fermentation tankPrinciple Introduction:

Inject sterile air into the fermentation broth through a nozzle or spray hole, and the air bubbles are divided and finely divided by the turbulence of the gas-liquid mixture. At the same time, due to the decrease in density of the formed gas-liquid mixture, they move upward, while the fermentation broth with low gas content sinks, forming a circulating flow to achieve mixing and dissolved oxygen.

Advantages of self-priming liquid fermentation tank:

(1) No need for other gas sources to supply compressed air, saving the air compression system and its equipment, and reducing equipment investment by nearly 30%.

(2) Easy to achieve automation and continuity.

(3)溶氧系数高。

(4) It has a wide range of applications and has been used in industries such as antibiotics, vitamins, organic acids, enzyme preparations, yeast, etc. Liquid fermentation tank

Disadvantages of self-priming liquid fermentation tanks:

(1) The loading coefficient is low, about 40%.

(2) The air entering the tank is under negative pressure, which increases the chance of bacterial contamination and is not suitable for fermentation processes with high sterile requirements.

(3) High stirring speed can have adverse effects on the hyphae of microorganisms with long hyphae due to the shear force of stirring.

(4) The suction distance is generally not high, and a low resistance rate air sterilization device is required.

Purpose:Pharmaceutical industry, yeast industry, production of calcium gluconate, rifampicin, vitamin C, yeast, protease, etc.