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Basic conditions of fermentation tank
Author: admin Date: 2018-11-21 Views: 69

Basic conditions of fermentation tank

Mechanically stirred fermentation tanks are widely used in factories. It uses the function of a mechanical stirrer to fully mix air and fermentation broth, increase the dissolved oxygen in the fermentation broth, and provide oxygen required for the growth, reproduction, and metabolism of microorganisms. The basic conditions of the fermentation tank are as follows:

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发酵罐应具有适宜的径高比。 1. Fermentation tank should have appropriate diameter-to-height ratio. 2.5~4 倍。 The height to diameter ratio of the fermentation tank is about 2.5 to 4 times. The tank is long and the utilization of oxygen is high.

发酵罐能承受一定压力。 2. The fermentation tank can withstand a certain pressure. Since the fermentation tank is sterilized and working normally, there is a certain pressure (air pressure and hydraulic pressure) and temperature inside the tank, so the parts of the tank must have a certain strength and can withstand a certain pressure. 1.5 倍。 After the tank is manufactured, a hydrostatic test must be performed, and the hydrostatic test pressure is 1.5 times the working pressure .

发酵罐的搅拌通风装置要能使气泡分散细碎,气液充分混合,保证发酵液必须的溶解氧,提高氧的利用率。 3. The stirring and ventilating device of the fermentation tank should be able to disperse the fine bubbles and fully mix the gas and liquid to ensure the necessary dissolved oxygen in the fermentation liquid and improve the utilization rate of oxygen.

发酵罐应具有足够的冷却面积。 4. The fermentation tank should have sufficient cooling area. The microbial growth and metabolism process releases a large amount of heat, and the fermentation heat of different products is also different. In order to control the temperature required at different stages of the fermentation process, sufficient cooling area should be installed.

发酵罐内应抛光,尽量减少死角、避免藏垢积污,使灭菌彻底,避免染菌。 5. The inside of the fermentation tank should be polished to minimize dead spots, avoid dirt and dirt, make the sterilization thorough, and avoid contamination.

搅拌器的轴封应严密,尽量减少泄漏。 6. The shaft seal of the mixer should be tight to minimize leakage.

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