A liquid fermentation tank

Abstract

The present invention is a liquid fermentation tank, which belongs to a microbial fermentation device. The present invention includes a tank body arranged on a base, a rotating shaft and a turntable connected to the rotating shaft are arranged on the base, a group of fermentation tanks with upper ends opened are arranged on the turntable along its circumference, a cover plate is arranged on the upper port of the fermentation tank, and a lifting mechanism of the cover plate is arranged in the tank body; a feeding mechanism is arranged on the upper end surface of the tank body, and a feeding pipe of the feeding mechanism passes through the fermentation tank cover plate and communicates with each fermentation tank, and a discharge pipe is movably matched with the fermentation tank cover plate; a stirring mechanism is arranged in the fermentation tank. The present invention enables multiple fermentation tanks to work at the same time, and can also work independently or discharge the fermented liquid without affecting the fermentation process of other fermentation tanks, thereby improving work efficiency. The present invention has the advantages of reasonable design and easy use.

Description

Technical Field

[0001] The invention relates to a liquid fermentation tank, belonging to a microbial fermentation device. Background Art

[0002] A liquid fermentation tank refers to a device that makes various liquid strain raw materials into liquid culture medium in a certain proportion, sterilizes them, and then connects the strains to the fermentation tank for fermentation. It is mainly used for microbial fermentation in industry. The main body of the fermentation tank is made of high-grade stainless steel, and the concentration of the liquid culture medium in the tank is accurate. The materials are mixed evenly through the stirring device in the tank, and the stirring paddle is used to disperse and break the foam. The dissolved oxygen rate is high, the mixing effect is good, and the fermentation reaction of the materials is promoted. Existing liquid fermentation tanks are generally composed of a single tank body, and only the liquid in one tank body can be fermented at a time. This type of liquid fermentation tank is not suitable for industrial continuous production, which causes a waste of time and low output, thereby increasing production costs. Summary of the invention

[0003] The object of the present invention is to provide a liquid fermentation tank capable of simultaneously operating a plurality of fermentation tanks.

[0004] The invention comprises a tank body arranged on a base, a rotating shaft and a rotating disk connected to the rotating shaft are arranged on the base, a group of fermentation tanks with upper ends opened are arranged on the rotating disk along its circumference, a cover plate is arranged on the upper port of the fermentation tank, and a lifting mechanism of the cover plate is arranged in the tank body; a feeding mechanism is arranged on the upper end surface of the tank body, a feeding pipe of the feeding mechanism passes through the fermentation tank cover plate and communicates with each fermentation tank, and the feeding pipe and the fermentation tank cover plate are movably matched; a stirring mechanism is arranged in the fermentation tank.

[0005] Furthermore, each fermentation tank is located on the same circumference concentric with the rotating shaft, and the bottom surface of the cover plate has an annular groove with a width adapted to the outer circumference size of the upper port of the fermentation tank and concentric with the rotating shaft, and the upper port of the fermentation tank can be embedded in the annular groove.

[0006] Furthermore, a discharge port connected to a fermentation tank discharge pipe is provided at the lower part of each fermentation tank, and each fermentation tank discharge pipe includes a vertical pipe section, a horizontal pipe section and an adapter arranged in sequence from the inner side to the outer side of the tank body; a turning through hole is provided in the adapter, and a blocking block corresponding to the outlet of the horizontal pipe section is provided in the turning through hole, a spring cooperating with the connecting rod and the adapter is provided on the connecting rod on the outer side of the blocking block, and an extrusion switch of the adapter is provided on the tank body; a liquid outlet pipe corresponding to the position of the sealing block is also provided on the tank body, and a lifting mechanism of the liquid outlet pipe is provided on the base.

[0007] Furthermore, the squeeze switch comprises a switch turntable with a transverse axis connected thereto, the inner surface of the switch turntable is provided with a groove which can cooperate with the outer end of the connecting rod, and the transverse axis passes through the outside of the tank body.

[0008] Furthermore, a blocking ring is provided in the tank body and is fixedly connected thereto and is located below the turntable. The inner surface of the blocking ring is a circumferential surface concentric with the rotating shaft. The rotary switch is provided on the blocking ring and corresponds to the position of the liquid outlet pipe.

[0009] Furthermore, the feeding mechanism includes at least one mixing bin arranged in the tank body, a group of feeding pipes are arranged at the upper end of each mixing bin, a discharge pipe with a solenoid valve is arranged at the lower port of the mixing bin, and the discharge pipe below the solenoid valve passes through the cover plate and movably cooperates with the cover plate; the lower end of each feeding pipe can correspond to the upper port of a fermentation tank.

[0010] Furthermore, a coaxial column is provided at the center of the upper surface of the turntable, and a groove is provided at the upper end of the column; an electric cylinder is provided on the cover plate above the column, and the push rod of the electric cylinder passes through the cover plate and is connected to the bearing in the groove at the upper end of the column.

[0011] Furthermore, the stirring mechanism in the fermentation tank is a spiral plate arranged on the inner wall of the fermentation tank.

[0012] Furthermore, the tank body comprises an inner tank body and an outer tank body, and a heating device and a temperature sensor are arranged in the inner tank body.

[0013] Furthermore, a fermentation tank loading and unloading door is arranged on the tank body.

[0014] In the present invention, multiple fermentation tanks can work simultaneously, thereby improving work efficiency. These fermentation tanks can also work alone or discharge the fermented liquid without affecting the fermentation process of other fermentation tanks, thereby achieving continuous fermentation with other fermentation tanks. In addition, the feed mechanism and the cover plate of each fermentation tank in the present invention are reasonably designed and can play their own role without affecting the rotation of the fermentation tank. The stirring mechanism in each fermentation tank does not need to provide a power supply separately, so as to adapt to the rotation design of multiple fermentation tanks in the present invention. Therefore, the present invention has the advantages of reasonable design and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of an embodiment of the present invention;

[0016] Figure 2 for Figure 1 Sectional view of the left side view;

[0017] Figure 3 for Figure 2 Enlarged view of point A (not shown) Figure 2 The discharge pipe behind the middle electric cylinder);

[0018] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0019] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0020] Figure 6 This is a bottom view of the cover plate of this embodiment;

[0021] Figure 7 for Figure 2 DD view (the cover plate, the first bearing and the push rod of the electric cylinder are not shown);

[0022] Among them, 1. upper cover, 2. feed pipe seat, 3. feed pipe, 4. mixing bin, 5. heating device and temperature sensor, 6. cover plate, 7. fermentation tank, 8. spiral plate, 9. loading and unloading door, 10. liquid outlet pipe, 11. oil cylinder, 12. motor, 13. base, 14. gear set, 15. shaft, 16. column, 17. turntable, 18. blocking ring, 19. inner tank body, 20. outer tank body, 21. cross connecting plate, 22. discharge pipe, 23. electric cylinder, 24. A bearing, 25, a spacer, 261, a left ball bearing, 262, a right ball bearing, 271, a left spring, 272, a right spring, 281, a left adapter, 282, a right adapter, 291, a left connecting rod, 292, a right connecting rod, 301, a left transverse pipe section, 302, a right transverse pipe section, 311, a left blocking block, 312, a right blocking block, 322, a right vertical pipe section, 33, a second bearing, 34, a switch dial, 35, an annular groove, 36, a center hole, 37, a discharge pipe hole. DETAILED DESCRIPTION

[0023] As shown in the figure, this embodiment includes a base 13, a tank body mounted on the base 13, and an upper cover 1 of the tank body, and a feeding mechanism is arranged on the upper cover 1. The tank body has a group of fermentation tanks 7 arranged on a rotating mechanism, and corresponding liquid discharge mechanisms are also arranged on the fermentation tanks and the tank body.

[0024] The base 13 of this embodiment is provided with a motor 12 and a gear set 14 connected to the motor 12, and the output end of the gear set 14 is connected to an upward rotating shaft 15. A cylinder 11 with a piston rod facing upward is also provided on one side of the base 13.

[0025] The tank body of this embodiment is arranged on the base 13, and it is composed of an inner tank body 19 and an outer tank body 20. According to the needs, the space between the inner and outer tank bodies may be filled with or not filled with heat-insulating materials. A heating device and a temperature sensor 5 are installed on the inner wall of the upper part of the inner tank body 19. In the inner tank body 19, there is a turntable 17 connected to the rotating shaft 15. A group of grooves are arranged coaxially with the rotating shaft 15 on the upper edge of the turntable 17. In this embodiment, four grooves are evenly arranged along the circumference, and a fermentation tank 7 is installed in each groove. A liquid outlet is arranged at the bottom of each fermentation tank 7. At the center position of the turntable 17, there is a column 16 inserted into the turntable 17, or further, inserted into the rotating shaft 15 and fixedly connected, and the upper end of the column 16 has a groove.

[0026] The cover plate 6 of the fermentation tank 7 is arranged in the inner tank body 19 above the fermentation tank 7, and the cover plate 6 is fixed on the frame-like cross connecting plate 21 above the cover plate 6.

[0027] The cover plate 6 is in the shape of a disk as a whole, and an annular groove 35 is provided on its lower surface to match the upper port of each fermentation tank 7. To facilitate the mutual matching of the cover plate 6 and the upper port of the fermentation tank 7, the size of the upper port of the fermentation tank 7 is smaller than the size of the main part of the fermentation tank 7. When the fermentation tank 7 moves with the turntable 17, the upper port of the fermentation tank 7 can move along the annular groove 35, thereby maintaining the matching of the cover plate 6 and the upper port of the fermentation tank 7.

[0028] In this embodiment, corresponding center holes 36 are set at the centers of the cover plate 6 and the cross connecting plate 21. The electric cylinder 23 is fixed on the cross connecting plate 21. The push rod of the electric cylinder 23 passes through the center hole 36 and is installed in the groove at the upper end of the column 16 through the first bearing 24. In order to facilitate processing and improve stability, a cushion block 25 can be set at the bottom of the groove at the upper end of the column 16. By selecting cushion blocks 25 of different thicknesses, the matching between the column 16 and the push rod is ensured.

[0029] Four discharge pipe holes 37 corresponding to the upper port positions of the four fermentation tanks 7 are also arranged in the annular groove 33 on the lower bottom surface of the cover plate 6 .

[0030] Four feed pipe seats 2 are arranged on the upper cover 1 of this embodiment, and a group of feed pipes 3 with solenoid valves are arranged on each feed pipe seat 2. Four mixing bins 4 are fixed in the inner tank body 19 between the cross connecting plate 21 and the upper cover 1, and each group of feed pipes 3 corresponds to one mixing bin 4 and passes through it. A discharge pipe 22 with a solenoid valve is arranged at the lower end of each mixing bin 4, and the discharge pipe 22 below the solenoid valve passes through the discharge pipe hole 37 on the cross connecting plate 21 and the cover plate 6, and is dynamically matched with the hole wall of the discharge pipe hole 37 on the cross connecting plate 21 and the cover plate 6.

[0031] When the electric cylinder 23 is working, it can cooperate with the column 16 to drive the cross connecting plate 21 and the cover plate 6 to move up and down, thereby opening or covering the upper port of the fermentation tank 7. In this process, the discharge pipe 22 does not move with the cross connecting plate 21 and the cover plate 6.

[0032] In this embodiment, after the liquid in the fermentation tank 7 is fermented, if the volume of the fermentation tank 7 is small, the entire fermentation tank 7 can be taken out through the loading and unloading door 9; or the liquid can be discharged from the upper port of the fermentation tank 7 when the cover plate 6 is opened. However, these methods are not convenient enough.

[0033] In order to facilitate liquid discharge, this embodiment provides a liquid outlet at the bottom of each fermentation tank and connects a liquid discharge pipe. Each fermentation tank liquid discharge pipe includes a vertical pipe section, a horizontal pipe section and an adapter arranged in sequence from the inner side to the outer side of the tank body. The adapter is provided with a valve structure of the liquid discharge pipe, and a switch structure that can cooperate with it is provided on the tank body. A liquid outlet pipe 10 that can cooperate with the liquid discharge pipe is provided on one side of the tank body. The liquid outlet pipe 10 is connected to the piston rod of the oil cylinder 11 arranged on the base 13, and can be lifted and lowered, thereby achieving its cooperation with the liquid discharge pipe of a fermentation tank 7, and the upper port where the liquid outlet pipe 10 is connected to the liquid discharge pipe is fixedly connected with a sealing gasket to ensure its sealing during the liquid discharge process to prevent leakage.

[0034] Figure 2 The drainage pipe of the fermentation tank on the left in the middle is closed, and the drainage pipe of the fermentation tank on the right is open.

[0035] like Figure 1 , Figure 4 As shown, the drainage pipe of the left fermentation tank 7 is in a closed state, wherein the drainage pipe of the fermentation tank 7 includes three parts connected in sequence: a left vertical pipe section connected to the drainage port of the fermentation tank 7 and passing through the turntable 17, a left horizontal pipe section 301 extending from the inside to the outside, and a left adapter 281. An L-shaped channel is provided in the left adapter 281, so that its outlet faces downward, so that it can dock with the outlet of the liquid outlet pipe 10 when it corresponds to the position of the outlet of the liquid outlet pipe 10. The valve structure includes a left connecting rod 291 provided on the outer part of the adapter 281 and passing through the adapter 281 in a transverse direction, and a left blocking block 311 is fixed to the inner end of the left connecting rod 291, and the position of the left blocking block 311 corresponds to the outlet end of the left horizontal pipe section 301, and the outlet end of the left horizontal pipe section 301 can be closed by the movement of the left connecting rod 291. A left spring 291 is sleeved on the left connecting rod 291 , with two ends respectively connected to the left connecting rod 291 and the left transition member 281 , and a left ball 261 is arranged at the outer end.

[0036] A blocking ring is fixedly mounted on the base in the inner tank body 19. The inner surface of the blocking ring is a cylindrical surface coaxial with the rotating shaft except for the position corresponding to the liquid outlet pipe 10. The left ball 261 cooperates with the inner surface of the blocking ring, and the left blocking block blocks the port of the left transverse pipe section, thereby closing the liquid outlet pipe of the left fermentation tank.

[0037] The state of the liquid outlet of the fermentation tank on the right side of this embodiment is as follows Figure 1 , Figure 5 As shown, the liquid outlet of the fermentation tank is in an open state.

[0038] The discharge port of the right fermentation tank 7 is connected to the right discharge pipe, which is composed of the following three parts connected in sequence: the right vertical pipe section 322 connected to the discharge port of the right fermentation tank 7, the right horizontal pipe section 302 and the right adapter 282. The right adapter 282 has an L-shaped channel in it, the lower end of which corresponds to the position of the upper end of the liquid outlet pipe 10, and is butted with the upper end of the liquid outlet pipe 10 after the piston rod of the oil cylinder 11 is lifted.

[0039] The valve structure on the right drainage pipe is symmetrical with the valve structure on the left drainage pipe, including a right connecting rod 292 with the same structure, a right spring 272 which is sleeved on the right connecting rod 292 and cooperates with the right connecting rod 292 and the right adapter 282 at both ends, a right blocking block 312 whose inner end of the right connecting rod 292 cooperates with the port of the right cross pipe section 302, and a right ball 262 at the outer end of the right connecting rod 292.

[0040] and Figure 1 The sealing ring 18 that the middle right ball 262 cooperates with is provided with a squeeze switch, which includes a switch turntable 34 with a transverse axis. The transverse axis of the switch turntable 34 rotates out of the sealing ring 18 and can be connected to its driving mechanism or handle. The inner surface of the switch turntable 34 has a groove that can cooperate with the ball under each fermentation tank 7. The groove is not on the center of the transverse axis, that is, it is in an eccentric position. Figure 5 As shown, at this time, the right ball 262 of the right fermentation tank falls into the groove of the switch dial 34 under the action of the right spring 272, thereby driving the right blocking block 312 at the inner end of the right connecting rod 292 to leave the port of the right horizontal pipe section 302, so that it is in an open state, and the liquid in the right fermentation tank can be discharged through the liquid outlet pipe 10.

[0041] By rotating the switch dial 34, the inner surface of the switch dial 34 corresponding to the right ball 262 can be kept consistent with the other inner surfaces of the blocking ring 18, and the right ball 262 is squeezed, and the right blocking block 312 is driven by the right connecting rod 292 to close the port of the right transverse pipe section 302, and the state of its valve structure is the same as Figure 1 The state of the left fermentation tank is identical. When the right ball 262 is squeezed, the right spring 272 is squeezed to eject the connecting rod 292 in preparation for the corresponding groove position of the switch rotating disk 34.

[0042] Before use, each fermentation tank 7 can be mounted on the turntable 17 through the upper port of the tank body or the loading and unloading door 9 on the tank body. After the upper cover 1 and its attached feed pipe seat 2, feed pipe 3, mixing bin 4 and cover plate 6 are installed, the cover plate 6 can be covered on the upper port of each fermentation tank 7 by controlling the electric cylinder 23, and raw materials can be added to the fermentation tank 7 through the feeding mechanism. When the motor 12 is started, the turntable 17 is driven, and the spiral plate 8 in the fermentation tank 7 helps to stir the liquid. During this process, the heating device and the temperature sensor 5 provide a suitable temperature for the liquid in the fermentation tank 7 to promote fermentation. During this process, the arc surface of the switch turntable 34 cooperates with the ball in the valve structure of each fermentation tank 7, so that the liquid outlet of each fermentation tank 7 is closed, and the piston rod of the oil cylinder 11 is in the lower position, so that the liquid outlet pipe 10 does not affect the rotation of each fermentation tank 7. When a fermentation tank 7 needs to discharge the liquid therein, the liquid discharge pipe is placed at the position of the liquid outlet pipe 10, the liquid outlet pipe 10 is lifted by the oil cylinder 11 to dock with the lower end of the liquid discharge pipe, and then the switch dial 10 is rotated to make the ball under the fermentation tank 7 fall into the groove of the switch dial 10, thereby opening the valve structure and allowing the liquid to flow out of the liquid outlet pipe 10. At this time, other fermentation tanks 7 are not affected to continue fermenting.

[0043] When necessary, the present invention can also open the upper cover 1 and the cover plate 6 to discharge the liquid in the fermentation tank 7 in other ways to facilitate cleaning and maintenance; or, part of the fermentation tank 7 can be taken out through the loading and unloading door 9.

Claims

1. A liquid fermentation tank, comprising a tank body arranged on a base, a rotating shaft and a rotating disk connected to the rotating shaft are arranged on the base, a group of fermentation tanks with upper ends opened are arranged on the rotating disk along its circumference, a cover plate is arranged on the upper port of the fermentation tank, and a lifting mechanism of the cover plate is arranged in the tank body; a feeding mechanism is arranged on the upper end surface of the tank body, a feeding pipe of the feeding mechanism passes through the fermentation tank cover plate and communicates with each fermentation tank, and the feeding pipe and the fermentation tank cover plate are movably matched; a stirring mechanism is arranged in the fermentation tank; Each fermentation tank is located on the same circumference concentric with the rotating shaft, and the bottom surface of the cover plate has an annular groove whose width is adapted to the outer circumference size of the upper port of the fermentation tank and is concentric with the rotating shaft, and the upper port of the fermentation tank can be embedded in the annular groove; when the fermentation tank moves with the turntable, the upper port of the fermentation tank can move along the annular groove, thereby maintaining the cooperation between the cover plate and the upper port of the fermentation tank; A discharge port connected to a fermentation tank discharge pipe is provided at the lower part of each fermentation tank, and each fermentation tank discharge pipe includes a vertical pipe section, a horizontal pipe section and an adapter arranged in sequence from the inner side to the outer side of the tank body, a valve structure of the discharge pipe is arranged on the adapter, and a switch structure capable of cooperating therewith is arranged on the tank body; a steering through hole is arranged in the adapter, a blocking block corresponding to the outlet of the horizontal pipe section is arranged in the steering through hole, a spring capable of cooperating with the connecting rod and the adapter is arranged on the connecting rod outside the blocking block, and an extrusion switch of the adapter is arranged on the tank body; a liquid outlet pipe capable of cooperating with the discharge pipe is arranged on one side of the tank body, the liquid outlet pipe is connected to the piston rod of the oil cylinder arranged on the base, and a sealing gasket is fixedly connected to the upper port where the liquid outlet pipe is connected to the discharge pipe; The squeeze switch comprises a switch turntable with a transverse shaft connected thereto, the inner surface of the switch turntable is provided with a groove which can cooperate with the outer end of the connecting rod, and the transverse shaft is connected to the outside of the tank body; A blocking ring is arranged in the tank body and is fixedly connected to the tank body and is located below the rotating disk. The inner surface of the blocking ring is a circumferential surface concentric with the rotating shaft. The switch rotating disk is arranged on the blocking ring and corresponds to the position of the liquid outlet pipe. A column which is inserted into and fixedly connected to the rotating shaft is arranged at the center of the rotating disk, and a groove is arranged at the upper end of the column.

2. The liquid fermentation tank according to claim 1, characterized in that: The feeding mechanism includes at least one mixing bin arranged in the tank body, a group of feeding pipes are arranged at the upper end of each mixing bin, a discharge pipe with a solenoid valve is arranged at the lower port of the mixing bin, and the discharge pipe below the solenoid valve passes through the cover plate and movably cooperates with the cover plate; the lower end of each feeding pipe can correspond to the upper port of a fermentation tank.

3. The liquid fermentation tank according to claim 1 or 2, characterized in that: An electric cylinder is arranged on the cover plate above the column, and a push rod of the electric cylinder passes through the cover plate and is connected with a bearing in a groove at the upper end of the column.

4. The liquid fermentation tank according to claim 1 or 2, characterized in that: The stirring mechanism in the fermentation tank is a spiral plate arranged on the inner wall of the fermentation tank.

5. The liquid fermentation tank according to claim 1 or 2, characterized in that: The tank body comprises an inner tank body and an outer tank body, and a heating device and a temperature sensor are arranged in the inner tank body.

6. The liquid fermentation tank according to claim 1 or 2, characterized in that: The tank body is provided with a fermentation tank loading and unloading door.

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