A fermentation device for producing high-concentrated lactic acid fermentation stock solution
By designing a separator and a transfer device in the fermentation tank, the problems of bacteria contamination and deep sampling during the sampling process are solved, precise sampling of materials in the fermentation tank and cleanliness are achieved, and the control ability of the fermentation process is improved.
Patent Information
- Application Number
- CN202211499316.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-28
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2042-11-28
AI Technical Summary
During the sampling process, existing fermentation tanks are prone to cause external bacteria to enter, and it is impossible to effectively sample materials of different depths in the fermentation tank.
A fermentation device for the production of high-concentrated lactic acid fermentation liquid including a fermentation tank, agitator and a sampling device is designed. The separation and precise sampling of the materials in the fermentation tank are achieved through the separation tank, the storage tank and the transfer device, so as to avoid direct connection. Prevent contamination of mixed bacteria and extract materials at different depths through spiral conveying rods and worm gear mechanisms.
It effectively prevents contamination of bacteria during the sampling process, ensures the cleanliness of the fermentation environment, and realizes accurate sampling of materials at different depths in the fermentation tank, improving the control ability of the fermentation process.
Smart Images
Figure CN115710544B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of fermentation tanks, and in particular to a fermentation device for producing high-concentrated lactic acid fermentation stock solution. Background Art
[0002] The fermentation tank is an external environment device for microorganisms to grow, reproduce and form products during the fermentation process. It replaces the traditional fermentation container and plays an important role in continuous large-scale production and improving output and yield. During the fermentation process, it is also necessary to sample and observe the materials in the fermentation tank in order to better control the fermentation process. However, the sampling port of the fermentation tank needs to be opened during the sampling process, which can easily cause external bacteria to enter the fermentation tank and pollute the fermentation environment.
[0003] Patent document announcement number CN216129577U discloses a fermentation tank that is convenient for sampling, including stirring blades and drag reduction holes. The upper ends of the stirring blades are provided with drag reduction holes, and the stirring blades of the same group are distributed in an annular and equidistant manner. This patent can effectively increase the stirring area and improve the stirring efficiency by setting three groups of stirring blades, so that the materials can be mixed, which is conducive to the rapid reproduction and fermentation of yeast. The drag reduction holes on the surface of the stirring blades can reduce the contact area between the stirring blades and the materials, and correspondingly reduce the stirring resistance, saving the transmission energy of the drive motor, and achieving energy-saving effects. In addition, the device is equipped with a regulating valve on the outside of the discharge port, so that the staff can adjust the discharge speed during discharge, which is convenient for sampling and observation during the fermentation process. However, this patent still has some shortcomings: 1. The discharge port is directly connected to the fermentation tank, which easily causes miscellaneous bacteria to enter the fermentation tank during sampling. 2. It is impossible to sample materials at different depths in the fermentation tank. Summary of the invention
[0004] The technical problem to be solved by the present invention is: in order to solve the problem of sampling materials at different depths in a fermentation tank, the present invention provides a fermentation device for producing highly concentrated lactic acid fermentation stock solution to solve the above problem.
[0005] The technical solution adopted by the present invention to solve its technical problems is: a fermentation device for producing highly concentrated lactic acid fermentation stock solution, comprising a fermentation tank, the fermentation tank having a feed door and a discharge pipe, and also comprising a stirring device, the stirring device comprising a motor, a connecting rod, a cage and stirring blades, the motor is fixed to the top of the fermentation tank, the connecting rod is connected to the output shaft of the motor, the cage is fixed to the connecting rod, the cage is slidably arranged on the inner wall of the fermentation tank, and the two ends of the stirring blade are fixed to the cage; a sampling device, the sampling device comprising a separating cylinder, a connecting cylinder, a material storage cylinder and a sampling nozzle, the separating cylinder is vertically arranged in the fermentation tank, the connecting cylinder is connected to the separating cylinder and extends to the outside of the fermentation tank, the material storage cylinder is fixed in the connecting cylinder, the end of the material storage cylinder close to the inside of the fermentation tank has a feeding port, and the end of the material storage cylinder close to the outside of the fermentation tank is connected to the sampling nozzle.
[0006] Preferably, a transfer device is also fixed on the separation cylinder, and the transfer device includes a transfer cylinder, a screw, a worm gear mechanism, a material taking handle and a dial. The transfer cylinder is slidably installed in the separation cylinder, and the transfer cylinder is provided with a guide groove, and the separation cylinder is provided with a guide bar that cooperates with the guide groove. The bottom of the transfer cylinder is provided with a discharge port, and the discharge port can be engaged with the feed port. The upper side wall of the transfer cylinder is provided with a material taking hole, and the side wall of the separation cylinder is provided with a material taking window for cooperating with the material taking hole. The screw passes through the transfer cylinder and is threadedly connected to the transfer cylinder. The worm gear mechanism is installed at the bottom of the separation cylinder and is located outside the fermentation tank. The screw is coaxially fixed with the worm wheel of the worm gear mechanism, and the material taking handle is coaxially fixed with the worm of the worm gear mechanism, and the dial is installed on the material taking handle.
[0007] Preferably, a flap door is fixed at the discharge port, and the flap door can be opened toward the interior of the transfer cylinder. A push head is fixed at the feed port, and the push head can push the flap door to open.
[0008] Preferably, a partition is vertically arranged in the transfer cylinder, and the partition divides the transfer cylinder into four transfer chambers. Each of the transfer chambers is provided with a material collection hole. Four material collection windows are provided on the separation cylinder corresponding to the material collection holes. A material collection hole is provided at the bottom of each transfer chamber, and the four material collection windows are distributed in a spiral upward manner from bottom to top along the side wall of the separation cylinder.
[0009] Preferably, four material storage cavities are arranged in the material storage barrel corresponding to the four transfer cavities, each of the material storage cavities is provided with an inlet, and the four inlets are respectively engaged with four outlets.
[0010] Preferably, a circulation device is further included, which includes a fixed ring, a fixed frame, a central tube and a spiral conveying rod. The fixed ring is fixed to the inner wall of the fermenter and is slidably connected to the bottom of the cage frame. The bottom of the central tube is mounted on the fixed ring through the fixed frame. The spiral conveying rod is installed in the central tube. The upper end of the spiral conveying rod is coaxially connected to the output of the motor. The spiral direction of the spiral conveying rod is opposite to the spiral direction of the stirring blade.
[0011] Preferably, a pressure relief pipe is also installed on the feed door, and an exhaust valve and a pressure reducing valve are installed at one end of the pressure relief pipe located outside the fermentation tank.
[0012] Preferably, an anti-blocking mesh cover is installed at one end of the pressure relief pipe extending into the fermentation tank.
[0013] The beneficial effect of the present invention is that a sampling device is provided, and the material in the fermentation tank is extracted and stored through the cooperation of the separation cylinder and the storage cylinder of the sampling device, avoiding direct connection between the inside and outside of the tank during sampling, and preventing miscellaneous bacteria from contaminating the fermentation environment in the tank during the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0015] Figure 1 It is a structural schematic diagram of the best embodiment of a fermentation device for producing highly concentrated lactic acid fermentation stock solution of the present invention;
[0016] Figure 2 It is a schematic structural diagram of a stirring device of a fermentation device for producing highly concentrated lactic acid fermentation stock solution of the present invention;
[0017] Figure 3 It is a schematic structural diagram of a circulation device of a fermentation device for producing high-concentrated lactic acid fermentation stock solution of the present invention;
[0018] Figure 4 It is a schematic structural diagram of a partition cylinder of a fermentation device for producing high-concentrated lactic acid fermentation stock solution of the present invention;
[0019] Figure 5 It is a schematic structural diagram of a transfer device of a fermentation device for producing high-concentrated lactic acid fermentation stock solution of the present invention;
[0020] Figure 6 It is a schematic structural diagram of a material storage barrel of a fermentation device for producing high-concentrated lactic acid fermentation stock solution of the present invention;
[0021] Figure 7 It is a schematic diagram of the structure of a transfer cylinder of a fermentation device for producing highly concentrated lactic acid fermentation stock solution of the present invention.
[0022] Reference numerals: 1, fermentation tank; 2, feed door; 3, discharge pipe; 4, stirring device; 5, motor; 6, connecting rod; 7, cage; 8, stirring blade; 9, sampling device; 10, separation cylinder; 11, connecting cylinder; 12, storage cylinder; 13, sampling nozzle; 14, feed inlet; 15, transfer device; 16, transfer cylinder; 17, screw;
[0023] 18. Worm gear mechanism; 19. Material taking handle; 20. Scale plate; 21. Guide groove; 22. Material discharge port;
[0024] 23. Feeding hole; 24. Feeding window; 25. Flap door; 26. Top; 27. Partition; 28. Circulation device; 29. Fixed ring; 30. Fixed frame; 31. Center tube; 32. Screw conveying rod; 33. Pressure relief pipe; 34. Exhaust valve; 35. Pressure reducing valve; 36. Anti-blocking mesh cover. DETAILED DESCRIPTION
[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0026] like Figures 1 to 7 As shown, the present invention provides an embodiment of a fermentation device for producing highly concentrated lactic acid fermentation stock solution, including a fermentation tank 1, wherein the fermentation tank 1 is provided with a feed door 2 and a discharge pipe 3, and a pressure relief pipe 33 is also installed on the feed door 2, and an exhaust valve 34 and a pressure reducing valve 35 are installed at one end of the pressure relief pipe 33 located outside the fermentation tank 1, and the gas generated during the fermentation process is discharged through the pressure relief pipe 33 to avoid excessive pressure in the fermentation tank 1. At the same time, the gas in the fermentation tank 1 can also be collected through the exhaust valve 34, and an anti-blocking mesh cover 36 is installed at one end of the pressure relief pipe 33 extending into the fermentation tank 1 to prevent the residue in the fermentation tank 1 from being discharged with the gas and causing the pressure relief pipe 33 to be blocked.
[0027] The stirring device 4 also includes a stirring device 4, which includes a motor 5, a connecting rod 6, a cage 7 and a stirring blade 8. The motor 5 is fixed on the top of the fermentation tank 1, the connecting rod 6 is connected to the output shaft of the motor 5, the cage 7 is fixed on the connecting rod 6, the cage 7 is slidably set on the inner wall of the fermentation tank 1, and the two ends of the stirring blade 8 are fixed on the cage 7. When the materials in the fermentation tank 1 are unevenly mixed, the motor 5 drives the connecting rod 6 to rotate, and the connecting rod 6 drives the cage 7 to rotate, so that the stirring blade 8 moves close to the inner wall of the fermentation tank 1. During the movement, the stirring blade 8 can scrape off the fermented material attached to the inner wall of the fermentation tank 1 to avoid the fermented material from sticking to the wall. On the other hand, during the movement of the stirring blade 8, it can also push the material above the fermentation tank 1 to sink, so that the material can be fully mixed and fermented.
[0028] The circulation device 28 also includes a fixed ring 29, a fixed frame 30, a central cylinder 31 and a spiral conveying rod 32. The fixed ring 29 is fixed to the inner wall of the fermentation tank 1 and is slidably connected to the bottom of the cage frame 7. The fixed ring 29 cooperates with the connecting rod 6 to support both ends of the cage frame 7 to improve the stability of the cage frame 7 during rotation. The bottom of the central cylinder 31 is installed on the fixed ring 29 through the fixed frame 30, and the spiral conveying rod 32 is installed in the central cylinder 31. The central cylinder 31 is used to prevent the material from being dispersed during the rising process, so that the spiral conveying rod 32 can smoothly convey the material from the bottom of the fermentation tank 1 to the top, thereby enabling the material at the top and bottom of the fermentation tank 1 to be filled. In the divided circulation, the upper end of the spiral conveying rod 32 is coaxially connected with the output of the motor 5. When the motor 5 rotates, it drives the spiral conveying rod 32 to rotate. The spiral direction of the spiral conveying rod 32 is opposite to the spiral direction of the stirring blade 8, so that the material close to the side wall of the fermentation tank 1 moves from top to bottom to the bottom of the fermentation tank 1, and the material close to the center of the fermentation tank 1 moves from bottom to top to the top of the fermentation tank 1. Through the cooperation of the stirring blade 8 and the spiral conveying rod 32, the circulation flow of the material in the fermentation tank 1 is realized. On the one hand, the material can be mixed evenly, and on the other hand, the heat exchange rate between the center and the side wall of the fermentation tank 1 can be improved, so that the temperature of each part in the fermentation tank 1 is kept balanced, thereby improving the fermentation effect of the fermentation tank 1.
[0029] The sampling device 9 includes a separation cylinder 10, a connecting cylinder 11, a storage cylinder 12 and a sampling nozzle 13. The separation cylinder 10 is vertically arranged in the fermentation tank 1. The connecting cylinder 11 is connected to the separation cylinder 10 and extends to the outside of the fermentation tank 1. The storage cylinder 12 is fixed in the connecting cylinder 11, so as to facilitate the transfer of the material in the fermentation tank 1 to the outside of the fermentation tank 1. The storage cylinder 12 has a feed port 14 at one end close to the inside of the fermentation tank 1. The material enters the storage cylinder 12 from the feed port 14, and the material is stored by the storage cylinder 12 until the operator takes out the material. The storage cylinder 12 is connected to the sampling nozzle 13 at one end close to the outside of the fermentation tank 1, and the sample in the storage cylinder 12 is discharged through the sampling nozzle 13 for sampling.
[0030] A transfer device 15 is also fixed on the separation cylinder 10. The transfer device 15 includes a transfer cylinder 16, a screw 17, a worm gear mechanism 18, a material handling handle 19 and a dial plate 20. The transfer cylinder 16 is slidably installed in the separation cylinder 10. The transfer cylinder 16 has a guide groove 21. The separation cylinder 10 has a guide bar that cooperates with the guide groove 21, so that the screw 17 can smoothly drive the transfer cylinder 16 to move up and down. The bottom of the transfer cylinder 16 is provided with a discharge port 22, which can be connected with the feed port 14. A flap door 25 is fixed at the discharge port 22, and the flap door 25 can be opened toward the inside of the transfer cylinder 16. A top head 26 is fixed at the feed inlet 14, and the top head 26 can push the flap door 25 to open. When sampling, the material handling handle 19 is rotated, and the screw 17 is driven to rotate through the worm gear mechanism 18, so that the transfer cylinder 16 moves up and down in the separation cylinder 10, and materials at different depths are extracted. While completing the sampling operation, the sealing of the interior of the fermentation tank 1 is guaranteed during sampling.
[0031] The upper side wall of the transfer cylinder 16 is provided with a material taking hole 23, and the side wall of the separation cylinder 10 is provided with a material taking window 24 for cooperating with the material taking hole 23. When the transfer cylinder 16 has not moved to the material taking window 24, the material taking hole 23 is blocked by the side wall of the separation cylinder 10 to prevent the material from entering the transfer cylinder 16. When the transfer cylinder 16 moves to the material taking window 24 and is connected with the material taking hole 23, the material enters the transfer cylinder 16 from the material taking hole 23, and then the transfer cylinder 16 moves downward, and the material taking hole 23 is closed again. At this time, the material is stored in the transfer cylinder 16. After the material enters the transfer cylinder 16, the transfer cylinder 16 is moved to the bottom of the separation cylinder 10, so that the transfer cylinder 16 is engaged with the storage cylinder 12. At this time, the material can enter the storage barrel 12 from the transfer barrel 16 to complete the material taking action. The screw 17 penetrates the transfer barrel 16 and is threadedly connected to the transfer barrel 16. The worm gear mechanism 18 is installed at the bottom of the separation barrel 10 and is located outside the fermenter 1. The screw 17 is coaxially fixed with the worm wheel of the worm gear mechanism 18. The material taking handle 19 is coaxially fixed with the worm of the worm gear mechanism 18. The dial 20 is installed on the material taking handle 19. The scale on the dial 20 corresponds to the depth of the transfer barrel 16. When the handle is rotated, the position of the transfer barrel 16 in the fermenter 1 is determined by observing the dial 20, so as to accurately sample materials at different depths.
[0032] A partition 27 is vertically arranged in the transfer cylinder 16, and the partition 27 divides the transfer cylinder 16 into four transfer chambers. Each transfer chamber is provided with a material taking hole 23. Four material taking windows 24 are provided on the separation cylinder 10 corresponding to the material taking hole 23. A material taking hole 23 is provided at the bottom of each transfer chamber, and the four material taking windows 24 are distributed in a spiral upward manner from bottom to top along the side wall of the separation cylinder 10, so that only one material taking window 24 is provided at the same depth of the fermentation tank 1. By connecting the material taking holes 23 on different transfer chambers with different material taking windows 24, respectively, sampling operations for materials at different depths can be realized. Four material storage chambers are provided in the material storage barrel 12 corresponding to the four transfer chambers, and each material storage chamber is provided with a material inlet 14. The four material inlets 14 are respectively engaged with four material outlets 22. Materials of different depths are stored in the four material storage chambers, respectively, which can effectively avoid mutual contamination between samples and ensure independent storage and retrieval of samples.
[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0034] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A fermentation device for producing highly concentrated lactic acid fermentation stock solution, comprising a fermentation tank (1), wherein the fermentation tank (1) is provided with a feed gate (2) and a discharge pipe (3), Features: It also comprises a stirring device (4), the stirring device (4) comprising a motor (5), a connecting rod (6), a cage (7) and a stirring blade (8), the motor (5) being fixed to the top of the fermentation tank (1), the connecting rod (6) being connected to the output shaft of the motor (5), the cage (7) being fixed to the connecting rod (6), the cage (7) being slidably arranged on the inner wall of the fermentation tank (1), and the two ends of the stirring blade (8) being fixed to the cage (7); A sampling device (9), the sampling device (9) comprising a separation cylinder (10), a connecting cylinder (11), a material storage cylinder (12) and a sampling nozzle (13), the separation cylinder (10) being vertically arranged in the fermentation tank (1), the connecting cylinder (11) being connected to the separation cylinder (10) and extending to the outside of the fermentation tank (1), the material storage cylinder (12) being fixed in the connecting cylinder (11), the end of the material storage cylinder (12) close to the inside of the fermentation tank (1) having a material inlet (14), and the end of the material storage cylinder (12) close to the outside of the fermentation tank (1) being connected to the sampling nozzle (13); A transfer device (15) is also fixed on the separation cylinder (10), and the transfer device (15) includes a transfer cylinder (16), a screw (17), a worm gear mechanism (18), a material removal handle (19) and a scale plate (20). The transfer cylinder (16) is slidably installed in the separation cylinder (10), and the transfer cylinder (16) has a guide groove (21). The separation cylinder (10) has a guide strip that cooperates with the guide groove (21). The bottom of the transfer cylinder (16) is provided with a discharge port (22), and the discharge port (22) can be engaged with the feed port (14). The upper side of the transfer cylinder (16) A material taking hole (23) is formed on the wall, a material taking window (24) for cooperating with the material taking hole (23) is formed on the side wall of the separation cylinder (10), the screw (17) passes through the transfer cylinder (16) and is threadedly connected to the transfer cylinder (16), the worm gear mechanism (18) is installed at the bottom of the separation cylinder (10) and is located outside the fermentation tank (1), the screw (17) is coaxially fixed with the worm wheel of the worm gear mechanism (18), the material taking handle (19) is coaxially fixed with the worm of the worm gear mechanism (18), and the scale plate (20) is installed on the material taking handle (19); A flap door (25) is fixed at the discharge port (22), and the flap door (25) can be opened toward the inside of the transfer cylinder (16); a push head (26) is fixed at the feed port (14), and the push head (26) can push the flap door (25) to open; A partition (27) is vertically arranged in the transfer cylinder (16), and the partition (27) divides the transfer cylinder (16) into four transfer chambers, each of which is provided with a material taking hole (23). Four material taking windows (24) are provided on the separation cylinder (10) corresponding to the material taking holes (23), and each of the transfer chambers is provided with a material taking hole (23). The bottom of each of the transfer chambers is provided with a material taking hole (23), and the four material taking windows (24) are distributed in a spiral upward manner from bottom to top along the side wall of the separation cylinder (10); four material storage chambers are provided in the material storage cylinder (12) corresponding to the four transfer chambers, and each of the material storage chambers is provided with a material inlet (14), and the four material inlet ports (14) are respectively engaged with four material outlet ports (22).
2. A fermentation device for producing highly concentrated lactic acid fermentation stock solution as claimed in claim 1, Features: The invention also comprises a circulation device (28), wherein the circulation device (28) comprises a fixing ring (29), a fixing frame (30), a central tube (31) and a spiral conveying rod (32), wherein the fixing ring (29) is fixed to the inner wall of the fermentation tank (1) and is slidably connected to the bottom of the cage frame (7), the bottom of the central tube (31) is mounted on the fixing ring (29) via the fixing frame (30), the spiral conveying rod (32) is mounted in the central tube (31), the upper end of the spiral conveying rod (32) is coaxially connected to the output of the motor (5), and the spiral direction of the spiral conveying rod (32) is opposite to the spiral direction of the stirring blade (8).
3. A fermentation device for producing highly concentrated lactic acid fermentation stock solution as claimed in claim 2, Features: A pressure relief pipe (33) is also installed on the feed door (2), and an exhaust valve (34) and a pressure reducing valve (35) are installed on one end of the pressure relief pipe (33) located outside the fermentation tank (1).
4. A fermentation device for producing highly concentrated lactic acid fermentation stock solution as claimed in claim 3, Features: An anti-blocking mesh cover (36) is installed at one end of the pressure relief pipe (33) extending into the fermentation tank (1).