A fermenter device capable of defoaming at multiple points

Abstract

The present invention discloses a fermenter device capable of defoaming at multiple points, which comprises a fermentation tank body. A feeding port is arranged at the top of the fermentation tank body, and a discharging port is arranged at the bottom of the fermentation tank body. A circular hole is arranged at the center of the top of the fermentation tank body, and a rotating cylinder is rotatably installed in the circular hole. The bottom of the rotating cylinder is connected to the fermentation tank body. A plurality of stirring shafts are arranged on the side wall of the fermentation tank body. A driven ring is arranged on the outer wall of the top end of the fermentation tank body. A driving motor is installed on the top of the fermentation tank body, and the output end of the driving motor is connected with a driving wheel. The driving wheel and the driven ring are connected by a chain. The rotating cylinder is connected with a multi-point defoaming mechanism. Due to the arrangement of the multi-point defoaming mechanism, during the fermentation production process, the residual foam inside the fermentation tank body is very little, and the defoaming effect is greatly improved. The bubbles in the fermenter can be eliminated, and the defoaming effect is good without the use of chemical defoamers, which is not only safer and healthier but also greatly reduces the production cost.

Description

Technical Field

[0001] The present invention relates to the technical field of fermenters, and particularly to a fermenter device capable of defoaming at multiple points. Background Art

[0002] During aerobic biological fermentation, due to the carbon dioxide generated by aeration stirring and the metabolism of microorganisms themselves, a large amount of foam is generated in the culture solution. A large amount of foam will bring many hazards to production. For example, it will reduce the aeration effect, and may also cause a large amount of culture solution to escape, resulting in waste and environmental pollution. Even the foam may rise to the top of the tank and leak out from the shaft seal, causing the risk of bacterial contamination. The methods of defoaming can be divided into mechanical defoaming and chemical defoaming. Mechanical defoaming is mostly used with rake type, scraper type, disc type, etc., and the defoaming effect is not good; chemical defoaming is to add defoaming agents to the fermentation broth to eliminate bubbles. The commonly used defoaming agents in the fermentation industry are mainly polyethers and silicones, and they are all toxic substances. Excessive use of defoaming agents will remain in the fermentation products, so it will affect human health after consumption. Moreover, the defoaming agents are expensive, and a large amount of use will increase the production cost. Summary of the Invention

[0003] The purpose of the present invention is to provide a fermenter device capable of defoaming at multiple points to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A fermenter device capable of defoaming at multiple points, including a fermentation tank body, a feeding port is arranged at the top of the fermentation tank body, a discharging port is arranged at the bottom of the fermentation tank body, a circular hole is arranged at the center of the top of the fermentation tank body, a rotating cylinder is rotatably installed in the circular hole, the bottom of the rotating cylinder is connected to the fermentation tank body, several stirring shafts are arranged on the side wall of the fermentation tank body, a driven ring is arranged on the outer wall of the top end of the fermentation tank body, a driving motor is installed on the top of the fermentation tank body, the output end of the driving motor is connected with a driving wheel, the driving wheel and the driven ring are connected by a chain, and the rotating cylinder is connected with a multi-point defoaming mechanism.

[0005] Preferably, several heating rings are arranged on the side wall of the fermentation tank body, and two heating resistance coils are arranged in each heating ring.

[0006] Preferably, the multi-point defoaming mechanism includes an installation ring slidably sleeved on the outer wall of the rotating cylinder, several side frame plates are arranged on the side wall of the installation ring, the side frame plates are of hollow structure, suction holes are arranged on both side walls of the side frame plates, two rows of defoaming teeth are arranged on the bottom surface of the side frame plates, several connecting pipes are arranged on the top surface of the installation ring, the connecting pipes are communicated with the side frame plates, and the connecting pipes pass through the movable grooves on the side wall of the rotating cylinder;

[0007] The multi-point defoaming mechanism further includes a telescopic rod. The top end of the telescopic rod is installed on the mounting frame at the top of the fermentation tank body. The bottom end of the telescopic rod is fixedly connected with a first pump. The inlet end of the first pump is connected with a liquid inlet pipe. The lower end of the liquid inlet pipe is connected with a central block. The central block is of a hollow structure and has a plurality of through holes on its side wall. An outer rotating ring is arranged around the central block. The outer rotating ring and the central block are rotationally connected through two sealing bearings. The end of the connecting pipe is inserted on the outer rotating ring. The outlet end of the first pump is connected with a liquid discharge pipe;

[0008] The bottom of the central block is connected with a support rod. The bottom of the support rod is connected with a second pump. An array of ultrasonic defoaming devices is arranged on the side wall of the second pump.

[0009] Preferably, the distance between the suction holes is 3-5 cm.

[0010] Preferably, the distance between the defoaming teeth is 3-5 cm.

[0011] Preferably, an electromagnetic valve is arranged on the liquid inlet pipe.

[0012] Preferably, the bottom height of the liquid discharge pipe is higher than that of the connecting pipe.

[0013] Preferably, the liquid inlet of the second pump is located at the bottom. The bottom of the second pump is close to but does not touch the bottom surface of the rotating cylinder. The liquid outlet of the second pump is connected with a return pipe. A plurality of openings are arranged on the side wall at the lower end of the rotating cylinder. A connecting ring is arranged inside the opening of the rotating cylinder. The connecting ring and the inner wall of the rotating cylinder are rotationally connected through two sealing bearings. The return pipe passes through the connecting ring.

[0014] Preferably, an air pump is installed on the side wall of the first pump. The air outlet pipe of the air pump is connected to the connecting seat on the top surface of the central block. A gas distribution hood is arranged inside the central block. The connecting seat and the gas distribution hood are connected through an air delivery pipe. The bottom end of the air delivery pipe is rotationally connected to the gas distribution hood. A plurality of air guide pipes are connected to the side wall of the gas distribution hood;

[0015] Two movable plates are movably arranged inside the side frame plate. A plurality of ejector pins are arranged on the side walls of the movable plates. The ejector pins correspond to the suction holes one by one. A plurality of telescopic air bags are arranged between the two movable plates. The telescopic air bags are connected to the air guide pipes.

[0016] Preferably, a one-way valve is arranged inside the connecting seat.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] A fermenter device capable of defoaming at multiple points proposed by the present invention is provided with a multi-point defoaming mechanism. During the fermentation production process, if foam appears inside the fermentation tank body, first control the telescopic rod to descend to push down the first pump, so that the connecting pipe drives the mounting ring and the side frame plate to descend to the foam layer. Start the driving motor to drive the rotating cylinder to rotate, which can make the connecting pipe drive the mounting ring and the side frame plate to rotate in the foam layer. The defoaming teeth can achieve a certain defoaming effect. If there is too much foam, control the start of the first pump for suction, which can reduce the air pressure inside the central block. Since the central block, the connecting pipe and the side frame plate are connected and communicate, the side frame plate can suck the foam layer and the upper layer of fermentation liquid from the suction holes. The foam and the upper layer of fermentation liquid are transported into the rotating cylinder. When the foam and the upper layer of fermentation liquid are at the bottom of the rotating cylinder, the ultrasonic defoaming device starts to comprehensively defoam the internal liquid. After defoaming is completed, the second pump starts to suck the fermentation liquid and then discharge it through the return pipe. The liquid flows down along the outer wall of the rotating cylinder and returns to the fermentation tank body. During defoaming, both the foam and the upper layer of fermentation liquid are sucked in, so there is very little residual foam inside the fermentation tank body, and the defoaming effect is greatly improved. It can eliminate the bubbles in the fermenter, has a good defoaming effect and does not require the use of chemical defoamers, which is not only safer and healthier but also greatly reduces the production cost.

[0019] During defoaming, some solid substances in the fermentation liquid may block the suction holes, which may affect the normal operation of the equipment. Therefore, cleaning operations need to be carried out at regular intervals. When cleaning the suction holes, by controlling the start of the air pump, the air pump transports a large amount of air into the air distribution hood, and then enters the telescopic airbag through the air guide pipe. The telescopic airbag expands and elongates to push the movable plates on both sides to both sides, so that the thimble is inserted into the suction hole, and the impurities in the suction hole can be cleaned, thus preventing the normal operation of the equipment from being affected due to the blockage of the suction hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the device of the present invention.

[0021] Figure 2 It is a top view of the fermentation tank body of the present invention.

[0022] Figure 3 It is a bottom view of the rotating cylinder of the present invention.

[0023] Figure 4 is Figure 3 The enlarged view at position A in

[0024] Figure 5 is Figure 3 The enlarged view at position B in

[0025] Figure 6 It is a connection structure diagram of the mounting ring of the present invention.

[0026] Figure 7Internal structure diagram of the side frame plate of the present invention.

[0027] In the figure: fermentation tank body 1, feeding port 2, discharging port 3, heating ring 4, rotating cylinder 5, connecting ring 501, driven ring 6, driving motor 7, driving wheel 8, chain 9, bottom column 10, stirring shaft 11, mounting frame 12, telescopic rod 13, first pump 14, liquid inlet pipe 15, solenoid valve 1501, central block 16, outer rotating ring 17, connecting pipe 18, mounting ring 19, side frame plate 20, suction hole 21, defoaming tooth 22, liquid discharge pipe 23, support rod 24, second pump 25, ultrasonic defoaming device 26, return pipe 27, air pump 28, connecting seat 2801, air distribution hood 29, air guide pipe 30, movable plate 31, thimble 32, telescopic airbag 33. Specific implementation manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 to 7 , the present invention provides a technical solution: a fermentation tank device capable of defoaming at multiple positions, including a fermentation tank body 1, a feeding port 2 is arranged at the top of the fermentation tank body 1, a discharging port 3 is arranged at the bottom of the fermentation tank body 1, several heating rings 4 are arranged on the side wall of the fermentation tank body 1, and two heating resistance coils are arranged in each heating ring 4, so that the equipment can be heated to reach a suitable temperature.

[0030] A circular hole is arranged at the center of the top of the fermentation tank body 1, a rotating cylinder 5 is rotatably installed in the circular hole, the bottom of the rotating cylinder 5 is connected to the fermentation tank body 1, several stirring shafts 11 are arranged on the side wall of the fermentation tank body 1, a driven ring 6 is arranged on the outer wall of the top end of the fermentation tank body 1, a driving motor 7 is installed on the top of the fermentation tank body 1, the output end of the driving motor 7 is connected to a driving wheel 8, the driving wheel 8 and the driven ring 6 are connected by a chain 9, and the rotating cylinder 5 is connected with a multi-position defoaming mechanism.

[0031] The multi-position defoaming mechanism includes a mounting ring 19 slidably sleeved on the outer wall of the rotating cylinder 5, several side frame plates 20 are arranged on the side wall of the mounting ring 19, the side frame plates 20 are of a hollow structure, suction holes 21 are arranged on both side walls of the side frame plates 20, the distance between the suction holes 21 is 3-5 cm, two rows of defoaming teeth 22 are arranged on the bottom surface of the side frame plates 20, the distance between the defoaming teeth 22 is 3-5 cm, several connecting pipes 18 are arranged on the top surface of the mounting ring 19, the connecting pipes 18 are communicated with the side frame plates 20, and the connecting pipes 18 pass through the movable grooves on the side wall of the rotating cylinder 5;

[0032] The multi-point defoaming mechanism further includes a telescopic rod 13. The top end of the telescopic rod 13 is installed on the mounting frame 12 at the top of the fermentation tank body 1. The bottom end of the telescopic rod 13 is fixedly connected with a first pump 14. The inlet end of the first pump 14 is connected with a liquid inlet pipe 15. An electromagnetic valve 1501 is arranged on the liquid inlet pipe 15. The lower end of the liquid inlet pipe 15 is connected with a central block 16. The central block 16 is of a hollow structure and several through holes are formed in its side wall. An outer rotating ring 17 is arranged outside the central block 16. The outer rotating ring 17 and the central block 16 are rotationally connected through two sealing bearings. The end of the connecting pipe 18 is inserted into the outer rotating ring 17. The outlet end of the first pump 14 is connected with a liquid discharge pipe 23. The bottom height of the liquid discharge pipe 23 is higher than that of the connecting pipe 18, so that when the rotating cylinder 5 rotates, the liquid discharge pipe 23 will not hinder the movement of the connecting pipe 18;

[0033] The bottom of the central block 16 is connected with a support rod 24. The bottom of the support rod 24 is connected with a second pump 25. The liquid inlet of the second pump 25 is located at the bottom. The bottom of the second pump 25 is close to the bottom surface of the rotating cylinder 5 but does not touch it. The liquid outlet of the second pump 25 is connected with a return pipe 27. Several openings are formed in the lower side wall of the rotating cylinder 5. A connecting ring 501 is arranged inside the opening of the rotating cylinder 5. The connecting ring 501 and the inner wall of the rotating cylinder 5 are rotationally connected through two sealing bearings. The return pipe 27 passes through the connecting ring 501. An array of ultrasonic defoaming devices 26 is arranged on the side wall of the second pump 25.

[0034] During the fermentation production process, if foam appears inside the fermentation tank body 1, first control the telescopic rod 13 to descend to push the first pump 14 downward, so that the connecting pipe 18 drives the mounting ring 19 and the side frame plate 20 to descend to the foam layer. Start the driving motor 7 to drive the rotating cylinder 5 to rotate, which can make the connecting pipe 18 drive the mounting ring 19 and the side frame plate 20 to rotate in the foam layer. The defoaming teeth 22 can achieve a certain defoaming effect. If there is too much foam, control the first pump 14 to start pumping, which can reduce the air pressure inside the central block 16. Since the central block 16, the connecting pipe 18 and the side frame plate 20 are connected and communicate, the side frame plate 20 can suck the foam layer and the upper layer of fermentation liquid from the suction holes 21. The foam and the upper layer of fermentation liquid are transported into the rotating cylinder 5; when the foam and the upper layer of fermentation liquid are at the bottom of the rotating cylinder 5, the ultrasonic defoaming device 26 starts to defoam the internal liquid comprehensively. After defoaming, the second pump 25 starts to suck the fermentation liquid and then discharges it through the return pipe 27. The liquid flows down along the outer wall of the rotating cylinder 5 and returns to the inside of the fermentation tank body 1; during defoaming, both the foam and the upper layer of fermentation liquid are sucked in, so there is very little residual foam inside the fermentation tank body 1, the defoaming effect is greatly improved, and no defoaming agent is used, which is healthier and safer.

[0035] An air pump 28 is installed on the side wall of the first pump 14. The air outlet pipe of the air pump 28 is connected to the connecting seat 2801 on the top surface of the central block 16. A one-way valve is arranged inside the connecting seat 2801, and air can only enter the central block 16 from the air pump 28, and the liquid in the central block 16 will not enter the air pump 28. A gas distribution hood 29 is arranged inside the central block 16. The connecting seat 2801 and the gas distribution hood 29 are connected through an air pipe. The bottom end of the air pipe is rotatably connected to the gas distribution hood 29. A plurality of air guide pipes 30 are connected to the side wall of the gas distribution hood 29; two movable plates 31 are movably arranged inside the side frame plate 20. A fixed column is installed in the side frame plate 20, and the fixed column is located in the middle of the ends of the two movable plates 31. The fixed column and the movable plate 31 are connected through a spring telescopic rod. A plurality of ejector pins 32 are arranged on the side wall of the movable plate 31, and the ejector pins 32 correspond to the suction holes 21 one by one. A plurality of telescopic air bags 33 are arranged between the two movable plates 31, and the telescopic air bags 33 are connected to the air guide pipes 30. When defoaming, some solid substances in the fermentation broth may block the suction holes 21, which may affect the normal operation of the equipment. Therefore, cleaning operations need to be carried out at regular intervals. When cleaning the suction holes 21, the air pump 28 is controlled to start. The air pump 28 conveys a large amount of air into the gas distribution hood 29, and then enters the telescopic air bags 33 through the air guide pipes 30. The telescopic air bags 33 expand and elongate to push the two movable plates 31 to both sides, so that the ejector pins 32 are inserted into the suction holes 21, and the impurities in the suction holes 21 can be cleaned, thereby preventing the normal operation of the equipment from being affected due to the blockage of the suction holes 21.

[0036] During actual use, the production raw materials are put into the fermentation tank body 1 from the feeding port 2. The heating ring 4 heats the fermentation tank body 1 to a suitable fermentation temperature. At the same time, the driving motor 7 starts to drive the driving wheel 8 to rotate, and then drives the driven ring 6 and the rotating drum 5 to rotate through the chain 9, so that the bottom fermentation tank body 1 and the stirring shaft 11 rotate to mix the raw materials evenly and improve the fermentation effect. After fermentation, the materials are discharged from the discharge port 3.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fermentation tank device capable of multi-point defoaming, comprising a fermentation tank body (1), characterized in that: The top of the fermentation tank body (1) is provided with a feeding port (2), the bottom of the fermentation tank body (1) is provided with a discharging port (3), a circular hole is provided at the center of the top of the fermentation tank body (1), a rotating drum (5) is rotatably mounted in the circular hole, the bottom of the rotating drum (5) is connected to the fermentation tank body (1), a plurality of stirring shafts (11) are provided on the side wall of the fermentation tank body (1), a driven ring (6) is provided on the top outer wall of the fermentation tank body (1), a driving motor (7) is installed on the top of the fermentation tank body (1), the output end of the driving motor (7) is connected to a driving wheel (8), and the driving wheel (8) and the driven ring (6) are connected by a chain (9); The rotating drum (5) is connected to a multi-point defoaming mechanism, the multi-point defoaming mechanism comprising a mounting ring (19) slidably sleeved on the outer wall of the rotating drum (5), a plurality of side frame plates (20) are arranged on the side wall of the mounting ring (19), the side frame plates (20) are hollow structures, suction holes (21) are arranged on the two side walls of the side frame plates (20), two rows of defoaming teeth (22) are arranged on the bottom surface of the side frame plates (20), and a plurality of connecting pipes (18) are arranged on the top surface of the mounting ring (19), the connecting pipes (18) are connected to the side frame plates (20), and the connecting pipes (18) pass through the movable grooves on the side wall of the rotating drum (5); The multi-point defoaming mechanism further comprises a telescopic rod (13), the top end of the telescopic rod (13) being mounted on a mounting frame (12) on the top of the fermentation tank body (1), the bottom end of the telescopic rod (13) being fixedly connected to a first pump (14), the inlet end of the first pump (14) being connected to a liquid inlet pipe (15), the lower end of the liquid inlet pipe (15) being connected to a central block (16), the central block (16) being a hollow structure and having a plurality of through holes on its side wall, an outer rotating ring (17) being arranged on the periphery of the central block (16), the outer rotating ring (17) and the central block (16) being rotatably connected via two sealing bearings, the end of a connecting pipe (18) being plugged into the outer rotating ring (17), the outlet end of the first pump (14) being connected to a liquid discharge pipe (23), the bottom height of the liquid discharge pipe (23) being higher than that of the connecting pipe (18); The bottom of the central block (16) is connected to a support rod (24), the bottom of the support rod (24) is connected to a second pump (25), a plurality of ultrasonic defoaming devices (26) are arranged on the side wall of the second pump (25), a liquid inlet of the second pump (25) is located at the bottom, the bottom of the second pump (25) is close to the bottom surface of the rotating drum (5) but does not contact it, a liquid outlet of the second pump (25) is connected to a reflux pipe (27), a plurality of openings are provided on the side wall of the lower end of the rotating drum (5), a connecting ring (501) is arranged on the inner side of the opening of the rotating drum (5), the connecting ring (501) and the inner wall of the rotating drum (5) are rotatably connected via two sealing bearings, and the reflux pipe (27) passes through the connecting ring (501).

2. A fermentation tank device capable of multi-point defoaming according to claim 1, characterized in that: A plurality of heating rings (4) are arranged on the side wall of the fermentation tank body (1), and two heating resistance rings are arranged in each heating ring (4).

3. A fermentation tank device capable of multi-point defoaming according to claim 1, characterized in that: The spacing between the suction holes (21) is 3-5 cm.

4. A fermentation tank device capable of multi-point defoaming according to claim 1, characterized in that: The spacing between the defoaming teeth (22) is 3-5 cm.

5. A fermentation tank device capable of multi-point defoaming according to claim 1, characterized in that: The liquid inlet pipe (15) is provided with a solenoid valve (1501).

6. A fermentation tank device capable of multi-point defoaming according to claim 1, characterized in that: An air pump (28) is installed on the side wall of the first pump machine (14); an air outlet pipe of the air pump (28) is connected to a connecting seat (2801) on the top surface of the central block (16); an air distribution hood (29) is arranged inside the central block (16); the connecting seat (2801) and the air distribution hood (29) are connected via an air supply pipe; the bottom end of the air supply pipe is rotatably connected to the air distribution hood (29); and a plurality of air guide pipes (30) are connected to the side wall of the air distribution hood (29); Two movable plates (31) are movably arranged inside the side frame plate (20), a plurality of ejector pins (32) are arranged on the side walls of the movable plates (31), the ejector pins (32) and the suction holes (21) correspond one to one, a plurality of telescopic air bags (33) are arranged between the two movable plates (31), and the telescopic air bags (33) and the air guide tube (30) are connected.

7. A fermentation tank device capable of multi-point defoaming according to claim 6, characterized in that: A one-way valve is arranged inside the connecting seat (2801).

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