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Turbine overflow fermentation tank

An overflow, fermenter technology, applied in bioreactor/fermenter combinations, specific-purpose bioreactors/fermenters, biochemical instruments, etc. The problem of short liquid residence time, failure to achieve full contact between fermentation liquid and air, etc., to achieve high aerobic fermentation efficiency, improve production efficiency, and increase the effect of contact area

Active Publication Date: 2014-09-17
江苏古沙农业科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of aerobic fermentation in the prior art, various methods are used to introduce oxygen into the fermented liquid in the fermented tank, but because the gas itself continues to float in the fermented liquid due to pressure, the residence time in the fermented liquid It is short, so most of the fermentation liquid is in contact with the gas layer on the upper layer of the fermentation tank through stirring to meet the aerobic needs of the microorganisms in the fermentation liquid; it is difficult for the stirring paddle of the ordinary fermentation tank to meet the full contact between the fermentation liquid and the gas However, the stirring paddle with the guide tube only forms convection inside and outside the guide tube, which further improves the contact surface and fails to achieve the purpose of full contact between the fermentation liquid and the air.

Method used

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  • Turbine overflow fermentation tank
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Examples

Experimental program
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Effect test

Embodiment 1

[0015] Example 1: Such as figure 1 and 2 Said, a turbine overflow fermenter, said turbine overflow fermenter comprises: a housing 1, a stirring structure, an air inlet 10, an air outlet 11, a culture solution inlet 7 and a fermentation solution overflow port 8 , the housing 1 is a cylindrical housing, the middle part of the housing 1 is provided with a stirring structure, the upper part of the stirring structure is provided with a transmission wheel 3 connected to the transmission motor by a belt, the stirring structure It includes a stirring shaft 2, a rotating sleeve 4, an air outlet connecting rod 6 and a turbine paddle 5. The air outlet connecting rod 6 is fixedly installed on the bottom of the stirring shaft 2, and the rotating sleeve 4 is fixedly connected to the front of the air outlet connecting rod 6. On the stirring shaft 2 above, the bottom of the housing 1 is provided with a fermentation broth overflow port 7 , and the installation height of the fermentation bro...

Embodiment 2

[0016] Example 2: Such as figure 1 and 2 As shown, the air inlet 10 is movably connected to the top of the stirring shaft 2, and the middle part of the stirring shaft 2 is provided with an air guide groove 12, and the air guide groove 12 communicates with the air outlet connecting rod 6 at the bottom of the stirring shaft. , the air outlet 11 is arranged on the top of the housing 1; the air guide device 12 built in the rotating shaft 2, through the centrifugal force formed during the rotation of the rotating shaft 2, assists the buoyancy of the exhaust gas rising in the fermentation liquid, improving other The residence time in the fermentation broth improves the mixing effect.

Embodiment 3

[0017] Example 3: Such as figure 1 and 2 As shown, the turbine paddle 5 is a four-page arc-shaped stirring paddle, and the turbine paddle 5 is fixedly installed on the stirring shaft 2 in the middle of the rotating sleeve 4; the turbine paddle 5 in the middle of the rotating sleeve 4 is installed, mainly It is used to improve the circulation of the fermented liquid inside the rotating sleeve 4, facilitate the formation of impact convection with the fermented liquid outside the rotating sleeve 4, and increase the contact area between the fermented liquid and the top gas.

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Abstract

The invention discloses a turbine overflow fermentation tank. A shell of the turbine overflow fermentation tank is a cylindrical shell; an agitating structure is arranged in the middle of the shell, and comprises an agitating shaft, a rotary sleeve, an exhaust connecting rod and a disc turbine; the exhaust connecting rod is fixedly arranged at the bottom of the agitating shaft; the rotary sleeve is fixedly connected to the agitating shaft above the exhaust connecting rod; the installation height of a fermentation liquor overflow port in the bottom of the shell is 10-15cm greater than that of the top of the rotary sleeve. The fermentation liquors at the inner side and the outer side of the sleeve are conveniently selected to form convection current by combined action of the exhaust connecting rod, the rotary sleeve and the disc turbine. Impact convection current in an opposite direction is formed at the top of the liquid level by upper and lower convection current formed by the disc turbine at the inner side of the rotary sleeve, so that the contact area of the fermentation liquor level and the air at the upper end is improved, meanwhile, the height of the liquid level is controlled through an installation position of the fermentation liquor overflow port, contact of the formed impact convection and the air at the upper end to the maximal extent is ensured, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of microbial fermentation equipment, in particular to a turbo overflow fermenter with high stirring fermentation efficiency. Background technique [0002] Fermentation is a process in which microorganisms use organic matter to decompose and other functions. It is divided into aerobic fermentation and anaerobic fermentation. In the industrial production process, the fermentation process is generally carried out in the fermenter. During the aerobic fermentation process, it is necessary to continuously feed the fermenter Oxygen, while anaerobic fermentation needs to extract the air in the tank or feed inert gas to isolate the air. [0003] In the process of aerobic fermentation in the prior art, various methods are used to introduce oxygen into the fermented liquid in the fermented tank, but because the gas itself continues to float in the fermented liquid due to pressure, the residence time in the fermented liquid It i...

Claims

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Application Information

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IPC IPC(8): C12M1/02
CPCC12M23/08C12M27/02C12M27/24C12M29/06
Inventor 景鹏飞
Owner 江苏古沙农业科技发展有限公司