Fermentation tank for glutamic acid preparation

Abstract

The utility model discloses a fermentation tank for preparing glutamic acid, and belongs to the technical field of fermentation tanks. The defect that in the prior art, an effective physical defoaming mode is lacked in a fermentation tank for glutamic acid preparation is overcome. The device mainly comprises a tank body, a hollow shaft gear motor is fixedly installed at the top of the tank body, the hollow shaft gear motor comprises an output shaft of a hollow structure, the top of the tank body is further rotationally connected with a stirring shaft, the stirring shaft penetrates through the output shaft and is fixedly connected with the output shaft, and the top of the tank body is fixedly connected with a fixing part of a rotating connector through a support on the upper side of the stirring shaft. A rotating part of the rotating joint is fixedly connected with the top of a stirring shaft, a first gas inlet channel is formed in the top of the stirring shaft, a defoaming shaft is fixedly connected to the upper side of the part, in the tank body, of the stirring shaft, a second gas inlet channel communicated with the first gas inlet channel is formed in the defoaming shaft, and a plurality of gas nozzles are mounted on the defoaming shaft at intervals; the rotating part of the rotating connector is connected with a first air inlet pipe which is provided with a first valve.

Description

Technical Field

[0001] The utility model belongs to the technical field of fermentation tanks, and in particular relates to a fermentation tank for preparing glutamic acid. Background Art

[0002] Fermentation tanks are required for the production of glutamate. Fermentation tanks provide a suitable growth environment for glutamate-producing bacteria, including controlling temperature, pH value, oxygen supply and other conditions to ensure that the bacteria can grow and metabolize normally to produce glutamate. Glutamic acid will produce foam during the fermentation process in the fermentation tank. Excessive foam will have an adverse effect on the fermentation process of glutamate, such as reducing production capacity. At present, when glutamate fermentation tanks use physical methods to eliminate the foam in the tank, many of them choose to install defoaming paddles on the rotating shaft. When the defoaming paddle is used to defoam the foam in the tank, the defoaming paddle can only play a certain defoaming role when the foam in the tank accumulates to a certain height, and the defoaming effect is not ideal. Summary of the invention

[0003] The utility model aims to provide a fermentation tank for preparing glutamic acid, so as to overcome the defect of lacking an effective physical defoaming method in the fermentation tank for preparing glutamic acid in the prior art.

[0004] The utility model is implemented by adopting the following technical scheme: a fermentation tank for preparing glutamic acid, comprising a tank body, a hollow shaft reduction motor fixedly installed on the top of the tank body, the hollow shaft reduction motor comprising an output shaft with a hollow structure, the top of the tank body is also rotatably connected to a stirring shaft, the stirring shaft passes through the output shaft and is fixedly connected to the output shaft, the top of the tank body is fixedly connected to a fixed part of a rotary joint through a bracket on the upper side of the stirring shaft, the rotating part of the rotary joint is fixedly connected to the top of the stirring shaft, a first air inlet channel is provided on the top of the stirring shaft, the stirring shaft is fixedly connected to a defoaming shaft on the upper side of the inner part of the tank body, a second air inlet channel connected to the first air inlet channel is provided in the defoaming shaft, a plurality of gas nozzles connected to the second air inlet channel and with air outlets arranged downward are installed at intervals on the defoaming shaft, the rotating part of the rotary joint is connected to a first air inlet pipe, and a first valve is installed on the first air inlet pipe.

[0005] Furthermore, a gas distributor is installed at the bottom of the tank body, the gas distributor is connected to the second air inlet pipe, the second air inlet pipe passes through the tank body, and the first air inlet pipe and the second air inlet pipe are respectively connected to the main air inlet pipe.

[0006] Furthermore, a second valve is installed on the second air intake pipe.

[0007] Furthermore, the second valve is a pressure reducing valve.

[0008] Furthermore, the stirring shaft is provided with a stirring blade on the lower side of the defoaming shaft.

[0009] Furthermore, the first valve is a pressure reducing valve.

[0010] Furthermore, the bracket includes a vertical beam fixedly mounted on the top of the tank body, a horizontal beam fixedly mounted on the vertical beam, and the fixing portion of the rotary joint is fixedly mounted on the horizontal beam.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model installs a defoaming shaft on the stirring shaft, and a plurality of gas nozzles are installed on the defoaming shaft at intervals. When working, the gas source passes the gas into the second air inlet channel on the defoaming shaft through the first air inlet pipe, the rotating joint and the stirring shaft, and then the gas is ejected through the gas nozzle on the defoaming shaft. When the gas jet ejected from the gas nozzle contacts the foam on the liquid surface in the fermentation tank, the foam in the fermentation tank will be burst, and then the foam in the fermentation tank will be eliminated. The utility model changes the situation that the defoaming paddle installed in the current fermentation tank can only take effect when the foam accumulates to a certain height in the tank body. The defoaming shaft in the utility model can defoam the foam in the fermentation tank at the early stage of the foam generation in the fermentation tank, so as to avoid the accumulation of foam in the tank; in actual use, the gas pressure entering the defoaming shaft can be reasonably set by the pressure reducing valve on the first air inlet pipe, and then the speed of the gas jet ejected from the gas nozzle can be reasonably adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] In the figure: 1. tank body; 2. hollow shaft reduction motor; 3. stirring shaft; 4. rotary joint; 5. fixed part; 6. rotating part; 7. bracket; 8. first air inlet channel; 9. second air inlet channel; 10. defoaming shaft; 11. gas nozzle; 12. first air inlet pipe; 13. first valve; 14. gas distributor; 15. second air inlet pipe; 16. main air inlet pipe; 17. second valve; 18. stirring blade; 19. vertical beam; 20. horizontal beam. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0016] A fermentation tank for preparing glutamic acid comprises a tank body 1, a hollow shaft reduction motor 2 is fixedly installed on the top of the tank body 1, the hollow shaft reduction motor 2 comprises an output shaft with a hollow structure, the top of the tank body 1 is also rotatably connected to a stirring shaft 3, the stirring shaft 3 passes through the output shaft and is fixedly connected to the output shaft, the stirring shaft 3 and the output shaft of the hollow shaft reduction motor 2 can be fixedly connected by bolts and nuts or welding, the output shaft of the hollow shaft reduction motor 2 drives the stirring shaft 3 to rotate, the stirring shaft 3 is provided with a stirring blade 18 on the lower side of a defoaming shaft 10, and the stirring shaft 3 drives the stirring blade 18 to rotate to stir the fermentation liquid in the fermentation tank.

[0017] The top of the tank body 1 is fixedly connected to the fixing portion 5 of the rotary joint 4 through the bracket 7 on the upper side of the stirring shaft 3, and the rotating portion 6 of the rotary joint 4 is fixedly connected to the top of the stirring shaft 3. By installing the rotary joint 4, the utility model can enable the first air inlet pipe 12 to transport the gas to the first air inlet channel 8 of the stirring shaft 3. During the rotation of the stirring shaft 3, the rotating portion 6 of the rotary joint 4 rotates with the stirring shaft 3, and the fixing portion 5 of the rotary joint 4 does not rotate and is fixedly installed on the top of the tank body 1 through the bracket 7. The bracket 7 includes a vertical beam 19 fixedly installed on the top of the tank body 1, and a horizontal beam 20 is fixedly installed on the vertical beam 19. The fixing portion 5 of the rotary joint 4 is fixedly installed on the horizontal beam 20. The number of vertical beams 19 on the bracket 7 can be reasonably designed, and a diagonal brace plate is installed between the vertical beam 19 and the horizontal beam 20.

[0018] A first air inlet channel 8 is provided at the top of the stirring shaft 3, and the stirring shaft 3 is fixedly connected to a defoaming shaft 10 on the upper side of the inner part of the tank body 1. A second air inlet channel 9 connected to the first air inlet channel 8 is provided in the defoaming shaft 10, and a plurality of gas nozzles 11 connected to the second air inlet channel 9 and with air outlets arranged downward are installed on the defoaming shaft 10 at intervals. The rotating portion 6 of the rotary joint 4 is connected to the first air inlet pipe 12. The gas source of the utility model passes the gas into the second air inlet channel 9 on the defoaming shaft 10 through the first air inlet pipe 12, the rotary joint 4 and the stirring shaft 3, and then the gas is ejected through the gas nozzle 11 on the defoaming shaft 10. When the gas jet ejected from the gas nozzle 11 contacts the foam on the liquid surface in the fermentation tank, the foam in the fermentation tank will be broken, thereby eliminating the foam in the fermentation tank.

[0019] The first valve 13 is installed on the first air inlet pipe 12, and the first valve 13 is a pressure reducing valve. During operation, we can reasonably set the gas pressure entering the defoaming shaft 10 through the pressure reducing valve on the first air inlet pipe 12, and then reasonably adjust the speed of the gas jet sprayed by the gas nozzle 11.

[0020] A gas distributor 14 is installed at the bottom of the tank body 1, and the gas distributor 14 is connected to a second air inlet pipe 15, and the second air inlet pipe 15 passes through the tank body 1. The first air inlet pipe 12 and the second air inlet pipe 15 are respectively connected to a total air inlet pipe 16, and a second valve 17 is installed on the second air inlet pipe 15, and the second valve 17 is a pressure reducing valve. The total air inlet pipe 16 of the utility model is connected to an air source, and the air source can simultaneously inlet air into the first air inlet pipe 12 and the second air inlet pipe 15, and the second valve 17 can set the pressure of the gas entering the gas distributor 14.

Claims

1. A fermentation tank for preparing glutamic acid, characterized in that: The invention comprises a tank body (1), a hollow shaft reduction motor (2) is fixedly mounted on the top of the tank body (1), the hollow shaft reduction motor (2) comprises an output shaft with a hollow structure, the top of the tank body (1) is also rotatably connected to a stirring shaft (3), the stirring shaft (3) passes through the output shaft and is fixedly connected to the output shaft, the top of the tank body (1) is fixedly connected to a fixed portion (5) of a rotary joint (4) on the upper side of the stirring shaft (3) through a bracket (7), the rotating portion (6) of the rotary joint (4) is fixedly connected to the top of the stirring shaft (3), and the stirring shaft ( A first air inlet channel (8) is provided at the top of the tank body (3); the stirring shaft (3) is fixedly connected to a defoaming shaft (10) on the upper side of the inner part of the tank body (1); a second air inlet channel (9) connected to the first air inlet channel (8) is provided in the defoaming shaft (10); a plurality of gas nozzles (11) connected to the second air inlet channel (9) and with air outlets arranged downward are installed at intervals on the defoaming shaft (10); the rotating portion (6) of the rotary joint (4) is connected to a first air inlet pipe (12); and a first valve (13) is installed on the first air inlet pipe (12).

2. The fermentation tank for preparing glutamic acid according to claim 1, characterized in that: A gas distributor (14) is installed at the bottom of the tank body (1), the gas distributor (14) is connected to a second air intake pipe (15), the second air intake pipe (15) passes through the tank body (1), and the first air intake pipe (12) and the second air intake pipe (15) are respectively connected to a main air intake pipe (16).

3. The fermentation tank for preparing glutamic acid according to claim 2, characterized in that: A second valve (17) is installed on the second air intake pipe (15).

4. The fermentation tank for preparing glutamic acid according to claim 3, characterized in that: The second valve (17) is a pressure reducing valve.

5. The fermentation tank for preparing glutamic acid according to claim 1, characterized in that: The stirring shaft (3) is provided with a stirring blade (18) on the lower side of the defoaming shaft (10).

6. The fermentation tank for preparing glutamic acid according to claim 1, characterized in that: The first valve (13) is a pressure reducing valve.

7. The fermentation tank for preparing glutamic acid according to claim 1, characterized in that: The bracket (7) comprises a vertical beam (19) fixedly mounted on the top of the tank body (1), a horizontal beam (20) fixedly mounted on the vertical beam (19), and a fixing portion (5) of the rotary joint (4) fixedly mounted on the horizontal beam (20).

Images