Stirred fermentation tank is to use the action of mechanical stirrer to dissolve air and materials fully to ensure the supply of oxygen needed for the reproduction and fermentation of microorganisms in the materials. Stirred fermenters are more often used in the food industry to make yeast and food additives, such as the production of medicinal yeast, feed yeast, active dry yeast, liquid yeast, glutamic citric acid, antibiotic vitamins, edible vinegar, lysine enzyme, etc. Stirred fermenter is simply a biological reactor that provides a suitable reaction environment for microorganisms and living cells.

Stirred fermenter material selection according to the corrosion of the fermented material on the steel, - generally choose 304 or 316 stainless steel material production. Stirring fermenter can be based on the production process to determine the function of the tank, the tank has a sandwich, insulation layer, the material can be heated, cooled, insulation. The interior of the tank is generally fully enclosed design to ensure that the materials are not contaminated in the mixing and fermentation.

The main components of the stirred fermenter are the stirring device and transmission device, the stirring device of the stirred fermenter is the main role of mixing and mass transfer, the transmission device generally includes an electric motor, reducer, coupling, seat and drive shaft. The motor will reduce the speed through the reducer, and then drive the stirring shaft to rotate through the coupling, thus driving the stirrer to rotate.

There is an accessory called antifoamer on the stirred fermenter, antifoamer is a device installed in the upper part of the rotating shaft in the mechanical stirred fermenter or on the exhaust system of the stirred fermenter, which can break the foam or break the foam into liquid and gaseous state. Stirring fermenter equipment and manhole, sight glass and other accessories, accessories can be configured according to the production process.