CN207062272U - A kind of Double shaft stirring fermentation tank - Google Patents

Abstract

The utility model discloses a double-shaft stirring fermentation tank, which comprises a fermentation tank body, a plastic pipe is arranged at the bottom end of the fermentation tank body, a valve is arranged at the top of the plastic pipe, and an air inlet is arranged at one side of the plastic pipe. One side of the fermenter tank body is provided with a cooling water inlet pipe, the top of the cooling water inlet pipe is provided with a controller, the top of the controller is provided with a sampling tube, and the surface of the fermenter tank body is provided with a cooling interlayer. An electric motor is arranged on the top, and a transmission belt is arranged on the bottom of the electric motor. By setting the first rotating shaft, the second rotating shaft and the stirring blades distributed in different directions on the surface of the first rotating shaft and the second rotating shaft, the bacteria inside the fermenter tank are stirred in the fermenter tank in a circular manner, and the same speed is used to achieve more Full stirring effect. The utility model is reasonable in design, simple in structure, safe and reliable, convenient to use, high in practicability, and has good popularization and use value.

Description

A double-shaft stirring fermenter

technical field

The utility model relates to the technical field of microbial fermentation equipment, in particular to a double-shaft stirring fermentation tank.

Background technique

Fermentation tank refers to a device used in industry for microbial fermentation. Its main body is generally a main cylinder made of stainless steel plate, and its volume ranges from 1m3 to hundreds of m3. In the design and processing, attention should be paid to the tight and reasonable structure. Can withstand steam sterilization, have certain operating flexibility, minimize internal accessories (avoid dead ends), strong material and energy transfer performance, and can be adjusted to facilitate cleaning and reduce pollution, suitable for the production of various products and reduce energy consume. The structure of the fermenter used for anaerobic fermentation (such as producing alcohol and solvent) can be relatively simple. The fermenter used for aerobic fermentation (such as the production of antibiotics, amino acids, organic acids, vitamins, etc.) needs to continuously feed a large amount of sterile air into the tank, and in order to consider the utilization rate of the air, the structure of the fermenter is comparatively comparative. Complex, commonly used mechanical stirring fermenter, bubbling fermenter and airlift fermenter. The fermentation process of dairy products and wine is a sterile and pollution-free process. The fermentation tank adopts a sterile system, which avoids and prevents the contamination of microorganisms in the air, greatly prolongs the shelf life of the product and the purity of the product. It is designed and installed with aseptic breathing stomata or aseptic positive pressure fermentation system. The tank is equipped with a Milo plate or a labyrinth jacket, which can be fed with a heating or cooling medium for circulating heating or cooling. The capacity of the fermenter varies from 300-15000L. Fermentation tanks can be divided into laboratory small-scale fermentation tanks, pilot production fermentation tanks, and large-scale fermentation tanks according to the scope of use. Fermentation tanks are widely used in dairy products, beverages, bioengineering, pharmaceuticals, fine chemicals and other industries. The tank body is equipped with interlayer and insulation layer, which can be heated, cooled and kept warm. The tank body and the upper and lower filling heads (or cones) are processed by spinning R angle. The inner wall of the tank is mirror-polished, and there is no hygienic dead corner. The fully enclosed design ensures that the materials are always mixed and fermented in a pollution-free state. The equipment is equipped with Air breathing holes, CIP cleaning nozzles, manholes and other devices. Classification of fermentation tanks: According to the equipment of the fermentation tank, it can be divided into mechanical stirring and ventilation fermentation tank and non-mechanical stirring and ventilation fermentation tank; according to the growth and metabolism needs of microorganisms, it can be divided into aerobic fermentation tank and anaerobic fermentation tank. Fermentation tank is a kind of equipment for mechanical stirring and fermentation of materials. The equipment adopts the internal circulation method, and uses the stirring paddle to disperse and break up the air bubbles. It has a high oxygen dissolution rate and a good mixing effect. The tank body is made of SUS304 or 316L imported stainless steel, and the tank is equipped with an automatic spray cleaning head to ensure that the production process meets GMP requirements. If the stirring speed of the agitator installed in the fermenter is fast, the mycelium will be damaged due to the increase of the shear speed, which will affect the normal metabolism of the mycelium and waste energy. If the stirring speed is slow, the stirring will not be sufficient. The existing technology is difficult Solve the above problems.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the problem that the existing fermentation tank agitator stirs too fast and damages the mycelium, and the slow stirring speed easily leads to precipitation, and provides a double-shaft stirring fermentation tank.

In order to solve the above technical problems, the utility model provides the following technical solutions:

The utility model provides a double-shaft stirring fermenter, which comprises a fermenter tank body, a plastic pipe is arranged at the bottom end of the fermenter tank body, a valve is arranged at the top end of the plastic pipe, and one side of the plastic pipe An air inlet is provided, a cooling water inlet pipe is arranged on one side of the fermenter body, a controller is arranged at the top of the cooling water inlet pipe, a sampling pipe is arranged at the top of the controller, and the fermenter The surface of the tank body is provided with a cooling interlayer, the top of the fermenter tank body is provided with a motor, the bottom end of the motor is provided with a transmission belt, one side of the transmission belt is provided with a first rotating shaft, and the first rotating shaft A sterile shaft seal is provided at the top of the drive belt, a second rotating shaft is provided on the other side of the transmission belt, a number of stirring blades are provided on the surface of the second rotating shaft, and a material inlet is provided on one side of the motor.

As a preferred technical solution of the present invention, both the first rotating shaft and the second rotating shaft are connected to the fermenter body through bearings.

As a preferred technical solution of the present utility model, both the first rotating shaft and the second rotating shaft are connected to the stirring blade by screws, and the stirring blade on the surface of the first rotating shaft and the second rotating shaft The installation direction is reversed.

As a preferred technical solution of the present invention, the cooling interlayer covers the surface of the fermenter body and is fixedly connected to the cooling water inlet pipe.

As a preferred technical solution of the utility model, the stirring blade is made of stainless steel.

As a preferred technical solution of the present invention, the plastic pipe is fixedly connected to the valve through a sleeve.

The beneficial effects achieved by the utility model are: by arranging the first rotating shaft, the second rotating shaft and the stirring blades distributed in different directions on the surface of the first rotating shaft and the second rotating shaft, the bacteria inside the fermenter tank body will be in the fermenter tank body Ring stirring, with the same speed to achieve a more complete stirring effect. The utility model has the advantages of reasonable design, simple structure, safety and reliability, convenient use, high practicability, and good popularization and use value.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a partial structural representation of the utility model;

Fig. 3 is a partial structural representation of the utility model;

In the figure: 1. Fermentation tank body; 2. Plastic pipe; 3. Valve; 4. Sterile shaft seal; 5. Air inlet; 6. Cooling water inlet pipe; 7. Controller; 8. Sampling pipe; 9 10. Transmission belt; 11. Motor; 12. First shaft; 13. Second shaft; 14. Cooling interlayer; 15. Stirring blade.

Detailed ways

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

Example 1

As shown in Figure 1-3, the utility model provides a double-shaft stirring fermenter, including a fermenter body 1, a plastic pipe 2 is arranged at the bottom of the fermenter body 1, and a valve 3 is arranged at the top of the plastic pipe 2 One side of the plastic pipe 2 is provided with an air inlet 5, one side of the fermenter body 1 is provided with a cooling water inlet pipe 6, the top of the cooling water inlet pipe 6 is provided with a controller 7, and the top of the controller 7 is provided with a Sampling pipe 8, cooling interlayer 14 is arranged on the surface of fermenter tank body 1, motor 11 is arranged on the top of fermenter tank body 1, and transmission belt 10 is arranged on the bottom end of motor 11, and one side of transmission belt 10 is provided with first Rotating shaft 12, the top of the first rotating shaft 12 is provided with a sterile shaft seal 4, the other side of the transmission belt 10 is provided with a second rotating shaft 13, the surface of the second rotating shaft 13 is provided with some stirring blades 15, and one side of the motor 11 is provided with There is feed inlet 9.

Both the first rotating shaft 12 and the second rotating shaft 13 are connected with the fermenter body 1 through bearings, so that the first rotating shaft 12 and the second rotating shaft 13 rotate inside the fermenter body 1 .

The first rotating shaft 12 and the second rotating shaft 13 are all connected with the stirring blade 15 by screws, and the installation direction of the stirring blade 15 on the surface of the first rotating shaft 12 and the second rotating shaft 13 is opposite, which is convenient to fully carry out the fermentation liquid inside the fermenter tank body 1. of stirring.

The cooling interlayer 14 covers the surface of the fermenter body 1 and is fixedly connected with the cooling water inlet pipe 6, so as to control the temperature inside the fermenter body 1 within a preset range.

The stirring blade 15 is made of stainless steel, which does not affect the quality of the fermentation broth, and is stable in nature and easy to maintain the stirring blade 15.

The plastic pipe 2 and the valve 3 are fixedly connected through a casing, so that the valve 3 can control the flow of the plastic pipe 2 .

During specific work, the pH electrode and the dissolved oxygen electrode are calibrated, the fermenter tank body 1 is sterilized, and the culture medium is allocated to the fermenter tank body 1 through the feed port 9 as required, and after sealing as required, the fermenter tank body 1 Sterilize by steam (121°C, 30min). After the fermentation tank body 1 is cooled, place it on the fermentation table and install it well; open the valve of the cooling water inlet pipe 6, turn on the power supply of the air pump, and connect the air inlet 5 to start Ventilation, adjust the intake knob to make the ventilation volume appropriate, and keep the internal pressure of the fermentation tank 1 at 0.05 MPa; set the temperature, pH, stirring speed, etc., turn on the power switch of the motor 11, and the motor 11 drives the first rotating shaft through the transmission belt 10 12 and the second rotating shaft 13 rotate, and then drive the stirring blade 15 to rotate to generate axial and radial flow, so that the fermentation liquid inside the fermenter tank 1 is well mixed, and the solids in the liquid are kept in a suspended state, and are kept in a certain rotational speed Calibrate the slope of the dissolved oxygen electrode under the condition of ventilation and air flow, and the value is 100%. After the temperature is stable and all parameters are correct, insert the pre-shaken seeds, start the fermentation timing, and start recording various parameters. The fermentation is complete Finally, clean the fermenter body 1 and the electrodes.

The beneficial effects achieved by the utility model are: by arranging the first rotating shaft, the second rotating shaft and the stirring blades distributed in different directions on the surface of the first rotating shaft and the second rotating shaft, the bacteria inside the fermenter tank body will be in the fermenter tank body Ring stirring, with the same speed to achieve a more complete stirring effect. The utility model has the advantages of reasonable design, simple structure, safety and reliability, convenient use, high practicability, and good popularization and use value.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. a kind of Double shaft stirring fermentation tank, including fermentation tank（1）, it is characterised in that the fermentation tank（1）Bottom It is provided with plastic tube（2）, the plastic tube（2）Top be provided with valve（3）, the plastic tube（2）Side set it is free Gas inlet port（5）, the fermentation tank（1）Side be provided with cooling water enter pipe（6）, the cooling water, which enters, manages（6） Top be provided with controller（7）, the controller（7）Top be provided with probe tube（8）, the fermentation tank（1）'s Surface is provided with cooling sandwith layer（14）, the fermentation tank（1）Top be provided with motor（11）, the motor（11） Bottom be provided with driving belt（10）, the driving belt（10）Side be provided with first rotating shaft（12）, described first turn Axle（12）Top be provided with sterile axle envelope（4）, the driving belt（10）Opposite side be provided with the second rotating shaft（13）, it is described Second rotating shaft（13）Surface be provided with some paddles（15）, the motor（11）Side be provided with feeding mouth（9）.

A kind of 2. Double shaft stirring fermentation tank according to claim 1, it is characterised in that the first rotating shaft（12）With it is described Second rotating shaft（13）With the fermentation tank（1）Connected by bearing.

A kind of 3. Double shaft stirring fermentation tank according to claim 1, it is characterised in that the first rotating shaft（12）With it is described Second rotating shaft（13）With the paddle（15）By screw connection, and the first rotating shaft（12）With second rotating shaft （13）The paddle on surface（15）Installation direction is opposite.

A kind of 4. Double shaft stirring fermentation tank according to claim 1, it is characterised in that the cooling sandwith layer（14）It is covered in The fermentation tank（1）Surface and with the cooling water enter manage（6）It is fixedly connected.

A kind of 5. Double shaft stirring fermentation tank according to claim 1, it is characterised in that the paddle（15）By stainless steel It is made.

A kind of 6. Double shaft stirring fermentation tank according to claim 1, it is characterised in that the plastic tube（2）With the valve Door（3）It is fixedly connected by sleeve pipe.