Fermentation tank with stirring mechanism

Abstract

The utility model belongs to the technical field of fermentation tanks, and particularly relates to a fermentation tank with a stirring mechanism, which comprises a tank body and the stirring mechanism, the tank body is provided with a feed port and a discharge port, and the stirring mechanism comprises a servo motor, a gear motor, a rotary drum, an air supply pipe, an upper rotary shaft, a lower rotary shaft and two rotary rods. The servo motor and the speed reduction motor are arranged at the upper end and the lower end of the tank body respectively, the rotary drum vertically penetrates through the top of the tank body, the top of the rotary drum is in transmission connection with an output shaft of the servo motor, a main pipe is arranged at the bottom end of the rotary drum, and a spray head is arranged at the bottom of the main pipe. The bottom end of the lower rotating shaft penetrates out of the tank body and is in transmission connection with an output shaft of the gear motor, one end of each rotating rod is in transmission connection with the top end of the lower rotating shaft, and stirring rods are arranged on the rotating rods. The device can stir raw materials in the tank body, so that the raw materials are in contact with air as much as possible, the fermentation degree of the raw materials is ensured to be consistent as much as possible, and the product quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of fermentation tank technology, and specifically relates to a fermentation tank with a stirring mechanism. Background Technology

[0002] With advancements in biotechnology, the types and functions of fermenters used for biological fermentation are becoming increasingly sophisticated. A fermenter, referring to an industrial device used for microbial fermentation, is of great significance to both industrial research and production. Its main body is generally a cylindrical structure made of stainless steel. Common fermenters are divided into solid-state fermenters and liquid-state fermenters. Based on their volume and application, fermenters can also be classified as seed tanks (inoculum fermenters) and general fermenters.

[0003] Currently, the production of industrial enzyme preparations using fermenters generally requires suitable temperature, pH value, sufficient oxygen supply, appropriate nutrients, aseptic operation, and pressure control. However, most existing fermenters do not have stirring functions. During fermentation, the raw materials are simply placed into the fermenter, air is introduced from the top, and fermentation is left to occur on its own. This not only results in a long fermentation time, but also means that only the raw materials at the top can come into contact with air, while the raw materials at the bottom can only come into contact with a small amount of permeated air. This leads to inconsistent fermentation levels in the raw materials in the fermenter, affecting the fermentation effect and ultimately impacting product quality.

[0004] Therefore, there is an urgent need for a fermenter with a stirring mechanism. Utility Model Content

[0005] To address the aforementioned deficiencies in existing technologies, this utility model provides a fermenter with a stirring mechanism, comprising a tank body and a stirring mechanism. The tank body has a feed inlet on its side and a discharge outlet at its bottom. The stirring mechanism includes a servo motor, a geared motor, a rotating drum, an air supply pipe, an upper rotating shaft, a lower rotating shaft, and two rotating rods. The servo motor is located at the top of the tank body, and the geared motor is located at the bottom. The rotating drum vertically penetrates the top of the tank body, and is sealed and rotatably connected to the top wall of the tank body. The top of the rotating drum is connected to the output shaft of the servo motor via a first bevel gear transmission pair. A main pipe is fixed to the bottom of the rotating drum, and several nozzles are located at the bottom of the main pipe. The air supply pipe is located above the tank body, and its bottom end passes through the rotating drum, with a sealed and rotatably connected outer wall of the air supply pipe to the inner wall of the rotating drum. The upper and lower rotating shafts... Both rotating rods are located inside the tank. The upper and lower rotating shafts are vertically arranged, with the upper shaft positioned above the lower shaft. The top of the upper shaft is fixedly connected to the middle of the main tube, while the bottom of the lower shaft extends through the bottom of the tank and is connected to the output shaft of the geared motor. The lower shaft is sealed to the bottom wall of the tank and rotatably connected. The two rotating rods are located between the upper and lower rotating shafts and are positioned on the left and right sides of the lower shaft, respectively. Both rotating rods are horizontally arranged. One end of each rotating rod is connected to the top of the lower shaft via a second bevel gear transmission pair. A gear sleeve is provided on the outside of the second bevel gear transmission pair. The top of the gear sleeve is fixedly connected to the bottom of the upper shaft, and the bottom of the gear sleeve is sealed to the top of the lower shaft and rotatably connected. The left and right sides of the gear sleeve are sealed to the two rotating rods and rotatably connected. Each rotating rod is equipped with several stirring rods.

[0006] Optionally, a heating jacket is provided on the outer wall of the tank.

[0007] Specifically, the heating jacket is used to heat the tank.

[0008] Optionally, a first valve is provided at the discharge port of the tank.

[0009] Specifically, the first valve facilitates control of material discharge.

[0010] Optionally, the first bevel gear transmission pair includes a first horizontal bevel gear and a first vertical bevel gear that mesh with each other. The first horizontal bevel gear is fixed to the outside of the rotating drum, and the first vertical bevel gear is mounted on the output shaft of the servo motor.

[0011] Optionally, a fixed bracket is provided at the top of the tank body, with both ends of the fixed bracket fixed to the top of the tank body, and the middle of the fixed bracket rotatably connected to the rotating drum.

[0012] Specifically, the fixed bracket is used to improve the stability of the drum during rotation.

[0013] Optionally, a second valve and an air supply pump are installed on the air supply pipe.

[0014] Optionally, the second bevel gear transmission pair includes a meshing second horizontal bevel gear and two second vertical bevel gears. The second horizontal bevel gear is fixed to the top of the lower rotating shaft, and the two second vertical bevel gears are respectively fixed to the ends of the two rotating rods.

[0015] Optionally, a stirring frame is fixedly installed at the bottom of the lower rotating shaft, and a cleaning brush is installed on the outside of the stirring frame, with the bristles of the cleaning brush pressing against the inner wall of the tank.

[0016] Specifically, the cleaning brush is used to clean the inner wall of the tank, while also reducing material sticking to the wall.

[0017] Optionally, the stirring rod is provided with several opening slots.

[0018] Specifically, the design of open slots can reduce resistance during stirring.

[0019] This invention also includes other components that enable the fermenter with a stirring mechanism to function properly, all of which are conventional techniques in the art. Furthermore, any devices or components not specified in this invention employ conventional techniques in the art, such as servo motors, geared motors, and air pumps.

[0020] The working principle of this invention is as follows: When in use, the raw materials are placed into the tank, the heating jacket heats the tank, and the servo motor and reduction motor are started. The servo motor drives the upper rotating shaft to rotate through the first bevel gear transmission pair, which in turn drives the gear sleeve to rotate, thereby causing the two rotating rods to revolve around the upper rotating shaft. Simultaneously, the reduction motor drives the lower rotating shaft to rotate, which in turn drives the two rotating rods to rotate independently through the second bevel gear transmission pair, thereby causing the stirring rod to rotate around the rotating rods. This stirs the material in the tank, improving its fluidity. Then, the second valve on the air supply pipe and the air pump are opened to introduce air into the tank. The main pipe rotates under the drive of the upper rotating shaft, allowing the air sprayed from the nozzle to contact the material as much as possible, improving the fermentation effect and efficiency.

[0021] The beneficial effects of this invention are that the stirring mechanism can stir the raw materials in the tank, allowing the raw materials to come into contact with air as much as possible, ensuring that the fermentation degree of the raw materials is as consistent as possible, improving the fermentation effect and efficiency, and improving product quality. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a three-dimensional structural diagram of the stirring rod of this utility model.

[0025] In the diagram: 1. Tank body, 2. Servo motor, 3. Gear motor, 4. Rotary drum, 5. Air supply pipe, 6. Upper rotating shaft, 7. Lower rotating shaft, 8. Rotating rod, 9. First bevel gear transmission pair, 10. Main pipe, 11. Nozzle, 12. Air supply pump, 13. Second bevel gear transmission pair, 14. Stirring rod, 15. Opening slot, 16. Heating jacket, 17. Fixed bracket, 18. Stirring frame, 19. Cleaning brush. Detailed Implementation

[0026] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0027] Example

[0028] like Figure 1-2As shown, this utility model embodiment provides a fermenter with a stirring mechanism, including a tank body 1 and a stirring mechanism. The tank body 1 has a feed inlet on its side and a discharge outlet at its bottom, with a first valve at the discharge outlet for easy control of material discharge. The stirring mechanism includes a servo motor 2, a reduction motor 3, a rotating drum 4, an air supply pipe 5, an upper rotating shaft 6, a lower rotating shaft 7, and two rotating rods 8. The servo motor 2 is located at the top of the tank body 1, and the reduction motor 3 is located at the bottom of the tank body 1. The rotating drum 4 vertically penetrates the top of the tank body 1, and is sealed and rotatably connected to the top wall of the tank body 1. The top of the rotating drum 4 is connected to the tank body 1 via a first bevel gear transmission pair 9. The output shaft of the servo motor 2 is connected to the transmission. The first bevel gear transmission pair 9 includes a meshing first horizontal bevel gear and a first vertical bevel gear. The first horizontal bevel gear is fixed to the outside of the rotating drum 4, and the first vertical bevel gear is mounted on the output shaft of the servo motor 2. A mother tube 10 is fixed to the bottom of the rotating drum 4, and several nozzles 11 are provided at the bottom of the mother tube 10. The air supply pipe 5 is located above the tank body 1, and the bottom end of the air supply pipe 5 passes through the rotating drum 4. The outer wall of the air supply pipe 5 is sealed and rotatably connected to the inner wall of the rotating drum 4. A second valve and an air supply pump 12 are provided on the air supply pipe 5. The upper rotating shaft 6, the lower rotating shaft 7, and the two rotating rods 8 are all located inside the tank body 1. Both the upper rotating shaft 6 and the lower rotating shaft 7 are vertically arranged, with the upper rotating shaft 6 located above the lower rotating shaft 7. The top end of the upper rotating shaft 6 is fixedly connected to the middle of the mother tube 10. The bottom end of the lower rotating shaft 7 extends through the bottom of the tank body 1 and is connected to the output shaft of the reduction motor 3. The lower rotating shaft 7 is sealed and rotatably connected to the bottom wall of the tank body 1. Two rotating rods 8 are located between the upper rotating shaft 6 and the lower rotating shaft 7, and are respectively arranged on the left and right sides of the lower rotating shaft 7. Both rotating rods 8 are horizontally arranged, and one end of each rotating rod 8 is connected to the top end of the lower rotating shaft 7 through a second bevel gear transmission pair 13. A gear sleeve is provided on the outside of the second bevel gear transmission pair 13. The second bevel gear transmission pair 13 includes a phase... The gear sleeve consists of a second horizontal bevel gear and two second vertical bevel gears. The top of the gear sleeve is fixedly connected to the bottom of the upper rotating shaft 6. The top of the lower rotating shaft 7 passes through the gear sleeve and is fixedly connected to the second horizontal bevel gear. The bottom of the gear sleeve and the top of the lower rotating shaft 7 are sealed and rotatably connected. The ends of the two rotating rods 8 pass through the left and right sides of the gear sleeve and are fixedly connected to the two second vertical bevel gears. The left and right sides of the gear sleeve are sealed and rotatably connected to the two rotating rods 8. Each rotating rod 8 is provided with several stirring rods 14. Each stirring rod 14 is provided with several open slots 15. The open slots 15 can reduce the resistance during stirring.

[0029] In addition, a heating jacket 16 is provided on the outer wall of the tank body 1 for heating the tank body 1. A fixed bracket 17 is provided at the top of the inside of the tank body 1. The left and right ends of the fixed bracket 17 are fixed to the top of the tank body 1, and the middle part of the fixed bracket 17 is rotatably connected to the rotating drum 4. The fixed bracket 17 is used to improve the stability of the rotating drum 4 during rotation. A stirring frame 18 is also fixedly provided at the bottom of the lower rotating shaft 7. A cleaning brush 19 is provided on the outer side of the stirring frame 18, and the bristles of the cleaning brush 19 are pressed against the inner wall of the tank body 1. The cleaning brush 19 is used to clean the inner wall of the tank body 1 and also reduces material sticking to the wall.

[0030] The working principle of this utility model is as follows: When in use, the raw materials are put into the tank 1, the heating jacket 16 heats the tank 1, the servo motor 2 and the reduction motor 3 are started, the servo motor 2 drives the upper rotating shaft 6 to rotate through the first bevel gear transmission pair 9, which drives the gear sleeve to rotate, and then drives the two rotating rods 8 to revolve around the upper rotating shaft 6. At the same time, the reduction motor 3 drives the lower rotating shaft 7 to rotate, and drives the two rotating rods 8 to rotate on their own axis through the second bevel gear transmission pair 13, which in turn drives the stirring rod 14 to rotate around the rotating rod 8, thereby stirring the material in the tank 1 and improving the fluidity of the material. Then, the second valve on the air supply pipe 5 and the air supply pump 12 are opened to introduce air into the tank 1. The main pipe 10 rotates under the drive of the upper rotating shaft 6, so that the air sprayed by the nozzle 11 contacts the material as much as possible, thereby improving the fermentation effect and fermentation efficiency.

[0031] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A fermenter with a stirring mechanism, comprising a tank body and a stirring mechanism, characterized in that: The tank has a feed inlet on its side and a discharge outlet at its bottom. The stirring mechanism includes a servo motor, a geared motor, a rotating drum, an air supply pipe, an upper rotating shaft, a lower rotating shaft, and two rotating rods. The servo motor is located at the top of the tank, and the geared motor is located at the bottom. The rotating drum extends vertically through the top of the tank, and its top is connected to the output shaft of the servo motor via a first bevel gear transmission pair. A main pipe is fixed to the bottom of the rotating drum, and several nozzles are located at the bottom of the main pipe. The air supply pipe is located above the tank, and its bottom end passes through the rotating drum. The upper rotating shaft, lower rotating shaft, and two rotating rods are all located inside the tank, with the upper rotating shaft positioned below the lower rotating shaft. Above the shaft, the top end of the upper rotating shaft is fixedly connected to the middle of the mother tube, and the bottom end of the lower rotating shaft passes through the bottom of the tank and is connected to the output shaft of the geared motor. The two rotating rods are located between the upper and lower rotating shafts and are respectively located on the left and right sides of the lower rotating shaft. One end of the two rotating rods is connected to the top end of the lower rotating shaft through a second bevel gear transmission pair. A gear sleeve is provided on the outside of the second bevel gear transmission pair. The top of the gear sleeve is fixedly connected to the bottom end of the upper rotating shaft, and the bottom of the gear sleeve is sealed and rotatably connected to the top end of the lower rotating shaft. The left and right sides of the gear sleeve are sealed and rotatably connected to the two rotating rods respectively. Several stirring rods are provided on each rotating rod.

2. The fermenter with a stirring mechanism according to claim 1, characterized in that: A heating jacket is installed on the outer wall of the tank.

3. The fermenter with a stirring mechanism according to claim 2, characterized in that: A first valve is installed at the discharge port of the tank.

4. The fermenter with a stirring mechanism according to claim 3, characterized in that: The first bevel gear transmission pair includes a first horizontal bevel gear and a first vertical bevel gear that mesh with each other. The first horizontal bevel gear is fixed to the outside of the rotating drum, and the first vertical bevel gear is mounted on the output shaft of the servo motor.

5. The fermenter with a stirring mechanism according to claim 4, characterized in that: A fixed bracket is installed at the top of the tank body. Both ends of the fixed bracket are fixed to the top of the tank body, and the middle part of the fixed bracket is rotatably connected to the rotating drum.

6. The fermenter with a stirring mechanism according to claim 5, characterized in that: A second valve and an air supply pump are installed on the air supply pipe.

7. The fermenter with a stirring mechanism according to claim 6, characterized in that: The second bevel gear transmission pair includes a meshing second horizontal bevel gear and two second vertical bevel gears. The second horizontal bevel gear is fixed to the top of the lower rotating shaft, and the two second vertical bevel gears are respectively fixed to the ends of the two rotating rods.

8. The fermenter with a stirring mechanism according to claim 7, characterized in that: A stirring frame is fixedly installed at the bottom of the lower rotating shaft, and a cleaning brush is installed on the outside of the stirring frame, with the bristles of the cleaning brush pressing against the inner wall of the tank.

9. The fermenter with a stirring mechanism according to claim 8, characterized in that: The stirring rod has several open slots.

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