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Axial center aeration and jet-booster type stirring fermenter

A stirring fermentation, booster technology, applied in bioreactor/fermenter combination, specific-purpose bioreactor/fermenter, biochemical instruments, etc., can solve the problem of low oxygen utilization rate and save compressed air power source , the effect of increasing product concentration and increasing dissolved oxygen rate

Inactive Publication Date: 2007-08-01
王书堂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of other ventilation methods (gas passes through a relatively long path, part of which does not pass through the stirring zone) and the bubbles directly rise to the top of the liquid surface, and the utilization rate of oxygen (air) is low.

Method used

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  • Axial center aeration and jet-booster type stirring fermenter

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Embodiment Construction

[0010] The fermenter adopts a general-purpose mechanical stirring fermenter tank structure, and only the stirring ventilation system is described.

[0011] This equipment adopts a fixed product in the form of motor 1 side-mounted and reducer 2 directly connected. The design and selection of the reducer is in the form of a straight-through output shaft at the upper and lower ends. The speed reducer 2 is installed on the upper end of the fermenter tank body 4 through the bracket 3 .

[0012] The stirring shaft 5 is made of thick-walled seamless pipe, which is precisely processed (to ensure concentricity). Generally, it should be made into two parts, that is, the upper half shaft and the lower half shaft (a particularly small reactor can be made into one shaft). The fixed support method of the shaft is basically the same as that of ordinary reactors. The difference is that the upper extension of the shaft is provided with an inverted mechanical seal 6 for the introduction of co...

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Abstract

The invention is to ventilate compressed air into fermentation tank through stirring axial core, and open cell on blade or ventilate air to short pipe cooperated with position and way of paddle, the air outlet is near to paddle to reach maximum diintegration degree, and mix instantly with liquid. The invention overcomes the shortcomings of relative long route of air in other ventilating way, direct rising of bubble to liquid upper side without passing through stirring area, and low avalability rate of air (oxygen), and reduces energy consumption, such as time, stirring power and ventilating amount. The counteracting force of air injector boosts the sitirring and favourable for increasing stirring efficiency and saving energy.

Description

technical field [0001] Fermentation equipment in chemical, pharmaceutical, biological, food and light industries. Background technique [0002] The 21st century is a century led by bioengineering technology, and fermentation is the basis of biotechnology industrialization. The macroscopic kinetics of biological reactions is the basis of fermentation process optimization, and the bioreactor is the external environment of the fermentation process, which also affects the efficiency and optimization of the fermentation process. [0003] Ventilation and stirring fermentation equipment is widely used in fermentation equipment, but no matter what the ventilation method is, the air enters the interior of the equipment through a separate pipe from the outside for ventilation through a distributor. The invention is a device for fully breaking up the gas and fully mixing the gas and liquid by changing the ventilation mode, so as to increase the dissolved oxygen rate and reduce energy ...

Claims

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Application Information

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IPC IPC(8): C12M1/02
CPCC12M27/04
Inventor 王书堂
Owner 王书堂
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