Poly (potassium glutamate) preparation method and device

Abstract

The invention relates to the field of potassium polyglutamate preparation, and discloses a potassium polyglutamate preparation method and device, the device comprises a filter box, fixing feet, a fermentation box and a discharge pipe; the quantitative stirring and filtering unit is arranged in the fermentation box; the two fixing legs are symmetrically and fixedly arranged at the top of the filter box; the fermentation box is fixedly arranged on the fixing legs; the rack pipe is fixedly arranged at the bottom of the filter box, the switch assembly is driven by the driving assembly to be switched on and off, fermented materials directly fall into the filter box at the bottom, and the switch assembly is arranged to avoid the situation that the materials in the fermentation box directly fall into the filter box next to cause that the filter box cannot completely receive the materials. And through the arrangement, the situation that workers carry the materials back and forth to filter the materials is avoided.

Description

Technical Field

[0001] The invention relates to the field of potassium polyglutamate preparation, and in particular to a method and a device for preparing potassium polyglutamate. Background Art

[0002] Potassium polyglutamate is a trace colloidal component extracted from fermented soy products (such as cheonggukjang) and prepared through a specific production process. During the microbial fermentation process, potassium glutamate is used instead of sodium glutamate (MSG), thus giving potassium polyglutamate unique properties.

[0003] The preparation of potassium polyglutamate is to first prepare for fermentation, select suitable microbial strains and fermentation culture equipment, inoculate the strains into the fermentation culture equipment and culture them aseptically, and allow the strains to ferment under appropriate temperature, pH value and dissolved oxygen conditions. During the fermentation process, the strains will use the nutrients in the culture medium to synthesize polyglutamic acid. After the fermentation is completed, the fermentation liquid is collected and subjected to necessary treatments such as centrifugation and filtration to remove the bacteria and other impurities, and polyglutamic acid is extracted from the treated fermentation liquid. The purity of polyglutamic acid is further improved through appropriate purification methods such as precipitation, ultrafiltration, dialysis, etc.

[0004] In the prior art, the strain is inoculated into a fermentation culture device for aseptic culture. After the fermentation is completed, the fermentation liquid is collected and then processed, such as centrifuged or filtered. However, when the fermentation liquid is filtered or centrifuged after the fermentation is completed, the fermentation liquid must be taken out of the culture device first, and the staff needs to take out the fermentation liquid from the fermentation device little by little, which is particularly cumbersome and time-consuming, and the work efficiency is low. The fermentation liquid cannot be quickly transferred and directly filtered. Summary of the invention

[0005] The purpose of the present invention is to provide a method and device for preparing potassium polyglutamate to solve the following technical problems: After fermentation is completed, the staff needs to take out the fermentation liquid from the fermentation equipment little by little, which is particularly cumbersome and time-consuming, and the work efficiency is low. The fermentation liquid cannot be quickly transferred and directly filtered.

[0006] The purpose of the present invention can be achieved by the following technical solutions: A potassium polyglutamate preparation device comprises a filter box, a fixing foot, a fermentation box and a drainage pipe; and also comprises a quantitative stirring and filtering unit arranged in the fermentation box; The fixing feet are provided with two and are symmetrically fixed on the top of the filter box; The fermentation box is fixedly arranged on the fixed foot; The row pipe is fixedly arranged at the bottom of the filter box; The quantitative stirring and filtering unit comprises a driving component, a stirring component, a switch component and a filtering component; the driving component drives the stirring component to rotate; the driving component drives the switch component to move; the driving component drives the filtering component to vibrate; The materials to be fermented and the additives for fermentation are placed in the fermentation box, and the driving component is used to drive the stirring component to stir the materials so that the materials and the fermentation additives are fully mixed. After being left stationary, the driving component is used to drive the switch component to switch, so that the fermented material in the fermentation box falls into the filter box, and then the driving component drives the filter component to filter the fermented material to obtain fermentation liquid, and then the fermentation liquid is discharged from the filter box through the drain pipe at the bottom of the filter box.

[0007] Further, the driving assembly includes a first L-shaped plate, a driving shaft, a second L-shaped plate and a driven gear; The stirring assembly comprises a support plate, a driven rod, a stirring blade and a bevel gear; Wherein, the first L-shaped plate is fixedly arranged on the fermentation box; two second L-shaped plates are provided and are symmetrically fixedly arranged in the fermentation box; the driving shaft is rotatably arranged on the first L-shaped plate, and the driving shaft passes through the second L-shaped plate and the fermentation box; the driven gear is fixedly arranged on the driving shaft; The support plate is fixedly arranged in the fermentation box; the driven rod is rotatably arranged on the top of the support plate; the stirring blade is fixedly arranged on the driven rod; the bevel gear is fixedly arranged on the top of the driven rod, and the bevel gear is meshed with the driven gear.

[0008] Furthermore, the driving assembly further comprises a half-toothed gear, a toothed plate, a limiting block, a sliding groove, a connecting block and a sliding block; The switch assembly includes a fixed shaft, a switch plate, a U-shaped block, a first limiting shaft, a control plate, a second limiting shaft and a lifting block; Wherein, the half-toothed gear is fixedly arranged on the driving shaft; the connecting block is fixedly connected to the lifting block; the limiting block is fixedly arranged at one end of the connecting block; the sliding groove is opened in the limiting block; the sliding block is slidably arranged in the sliding groove; the tooth plate is fixedly arranged on the top of the sliding block, and the tooth plate is meshed with the half-toothed gear; There are two fixed shafts, which are symmetrically fixed on the support plate; the switch plate is rotatably set on the fixed shaft; the U-shaped block is fixedly set at the bottom of the switch plate; the first limiting shaft is fixedly set in the U-shaped block; the control plate is rotatably set on the first limiting shaft; the second limiting shaft is fixedly set on the lifting block; the other end of the control plate is rotatably connected to the second limiting shaft.

[0009] Further, the driving assembly also includes a first rotating wheel, a belt, a second rotating wheel and a vibrating rod; The filter assembly includes a filter plate, a connecting column, a second spring, a vibration ring and a mounting block; Wherein, the first rotating wheel is fixedly arranged at one end of the driving shaft; the vibration rod is rotatably arranged in the filter box, and the vibration rod penetrates the filter box; the second rotating wheel is fixedly arranged at one end of the vibration rod; the belt is sleeved on the first rotating wheel and the second rotating wheel; The mounting block is fixedly arranged in the filter box, and the mounting block is provided with four mounting blocks which are symmetrically arranged in the filter box; the connecting column is slidably arranged on the mounting block; the filter plate is fixedly arranged on the top of the connecting column; the second spring is sleeved on the connecting column, and the two ends of the second spring are fixedly connected to the mounting block and the connecting column respectively; the vibration ring is fixedly arranged on the vibration rod.

[0010] Furthermore, a lifting rod is fixedly connected to the bottom of the support plate; the lifting block is slidably arranged on the lifting rod; a first spring is sleeved on the lifting rod; and two ends of the first spring are fixedly connected to the lifting block and the support plate respectively.

[0011] Furthermore, a support block is fixedly connected to the fermentation box; a moving rod is rotatably connected to the support block; a handle is fixedly connected to one end of the moving rod; a moving block is threadedly connected to the moving rod; a limiting column is fixedly connected to the tooth plate; and the limiting column passes through the moving block.

[0012] Furthermore, a driving motor is fixedly connected to the first L-shaped plate, and the driving motor is connected to the driving shaft; two supporting blocks are provided and are symmetrically arranged on the fermentation box.

[0013] A method for preparing potassium polyglutamate, the preparation method comprising the following steps: S1: Put the materials and additives into the fermentation box, and rotate the driven rod to make the stirring blade stir and mix the materials and additives in the fermentation box; S2: After the materials in the fermentation box are stirred, mixed, and fermented statically, the control board is moved by the lifting block to rotate the switch board, and the rotating switch board discharges the materials and fermentation liquid in the fermentation box into the filter box; S3: When the fermentation liquid and the material fall onto the filter plate in the filter box, the vibration rod rotates to drive the vibration ring to rotate, so that the filter plate vibrates to filter the fermentation liquid on the filter plate to the bottom of the filter box; S4: After all the fermentation liquid is filtered to the bottom of the filter box, the staff turns on the switch on the discharge pipe to discharge the fermentation liquid from the filter box.

[0014] Beneficial effects of the present invention: (1) The switch assembly is driven by the driving assembly to switch, so that the fermented material falls directly into the filter box at the bottom. The switch assembly is set to prevent the material in the fermentation box from falling directly into the filter box, resulting in the filter box being unable to receive all the material, causing the material to overflow and cause waste. This setting also avoids the need for staff to carry the material back and forth for filtering; (2) The fermented material is placed in the fermentation box, and then the additives for fermentation are also placed in the fermentation box, and then the driving component is used to drive the stirring component to rotate. This setting is to allow the stirring component to stir the material and the additive in the fermentation box so that the material and the additive can be fully mixed, thereby avoiding incomplete mixing of the additive and the material, resulting in insufficient fermentation of the material; (3) The driving component drives the filter component to vibrate and filter the material, intercepting the material to allow the fermentation liquid to fall into the bottom of the filter box and then collect the fermentation liquid through the drainage pipe. This setting can separate the material box from the fermentation liquid, and obtain the complete fermentation liquid so that the staff can directly take the fermentation liquid for the next step of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 A top perspective view of the present invention; Figure 2 is a cross-sectional view of a fermentation box in the present invention; Figure 3 is a three-dimensional diagram of the stirring assembly in the present invention; Figure 4 is a three-dimensional diagram of the switch assembly of the present invention; Figure 5 is a cross-sectional view of the switch assembly of the present invention; Figure 6 is a three-dimensional diagram of the filter assembly of the present invention; Figure 7 It is a front perspective view of the present invention.

[0017] Description of the drawings: 1. Filter box; 2. Fixed foot; 3. Fermentation box; 4. Drain pipe; 5. First L-shaped plate; 6. Driving motor; 7. Driving shaft; 8. Half-tooth gear; 9. Tooth plate; 10. Limiting column; 11. Handle; 12. Moving rod; 13. Support block; 14. Moving block; 15. Limiting block; 16. Sliding groove; 17. Connecting block; 18. Filter plate; 19. Fixed shaft; 20. First rotating wheel; 21. Belt; 22. Switch plate; 23. U-shaped block; 24. Control Plate; 25, lifting block; 26, lifting rod; 27, first spring; 28, first limiting shaft; 29, second L-shaped plate; 30, bevel gear; 31, driven rod; 32, stirring blade; 33, support plate; 34, second limiting shaft; 36, vibration rod; 37, vibration ring; 38, connecting column; 39, second spring; 40, driven gear; 41, sliding block; 42, mounting block; 43, second rotating wheel; 44, switch assembly; 45, stirring assembly; 46, filtering assembly. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 7 As shown, the present invention is a potassium polyglutamate preparation device, comprising a filter box 1, a fixed foot 2, a fermentation box 3 and a drain pipe 4; and also comprising a quantitative stirring and filtering unit arranged in the fermentation box 3; The fixing feet 2 are provided with two and are symmetrically fixed on the top of the filter box 1; The fermentation box 3 is fixedly arranged on the fixed foot 2; The row pipe 4 is fixedly arranged at the bottom of the filter box 1; The quantitative stirring and filtering unit comprises a driving component, a stirring component 45, a switch component 44 and a filtering component 46; the driving component drives the stirring component 45 to rotate; the driving component drives the switch component 44 to move; the driving component drives the filtering component 46 to vibrate; The material to be fermented and the additives for fermentation are placed in the fermentation box 3, and the driving component is used to drive the stirring component to stir the material so that the material and the fermentation additive are fully mixed. After being placed still, the driving component is used to drive the switch component 44 to switch, so that the fermented material in the fermentation box 3 falls into the filter box 1, and then the driving component drives the filter component 46 to filter the fermented material to obtain fermentation liquid, and then the fermentation liquid is discharged from the filter box 1 through the drain pipe 4 at the bottom of the filter box 1; The fermented material is put into the fermentation box 3, and then the additive for fermentation is also put into the fermentation box 3, and then the driving component drives the stirring component 45 to rotate. This setting is to allow the stirring component 45 to stir the material and the additive in the fermentation box 3 so that the material and the additive can be fully mixed, so as to avoid the additive and the material not being fully mixed, resulting in insufficient fermentation of the material; After the fermentation of the material is completed, the switch component 44 is driven by the driving component to switch, so that the fermented material falls directly into the filter box 1 at the bottom. The switch component 44 is set to prevent the material in the fermentation box 3 from falling directly into the filter box 1, resulting in the filter box 1 being unable to receive all the material, causing the material to overflow and cause waste. This setting also avoids the need for staff to carry the material back and forth for filtering. After the material falls into the filter box 1, the driving component drives the filter component 46 to vibrate and filter the material, intercept the material and let the fermentation liquid fall into the bottom of the filter box 1 and then collect the fermentation liquid through the drainage pipe 4. This arrangement can separate the material box from the fermentation liquid, and obtain the complete fermentation liquid so that the staff can directly take the fermentation liquid for the next step of processing.

[0020] See also Figures 1 to 3 As shown, the driving assembly includes a first L-shaped plate 5, a driving shaft 7, a second L-shaped plate 29 and a driven gear 40; The stirring assembly 45 includes a support plate 33, a driven rod 31, a stirring blade 32 and a bevel gear 30; The first L-shaped plate 5 is fixedly arranged on the fermentation box 3; two second L-shaped plates 29 are provided and symmetrically fixedly arranged in the fermentation box 3; the driving shaft 7 is rotatably arranged on the first L-shaped plate 5, and the driving shaft 7 passes through the second L-shaped plate 29 and the fermentation box 3; the driven gear 40 is fixedly arranged on the driving shaft 7; The support plate 33 is fixedly arranged in the fermentation box 3; the driven rod 31 is rotatably arranged on the top of the support plate 33; the stirring blade 32 is fixedly arranged on the driven rod 31; the bevel gear 30 is fixedly arranged on the top of the driven rod 31, and the bevel gear 30 is meshed with the driven gear 40; The driven gear 40 is driven to rotate by the driving shaft 7, and the rotating driven gear 40 and the bevel gear 30 are rotated. The rotating bevel gear 30 causes the driven rod 31 and the stirring blade 32 to rotate on the support plate 33. The rotating stirring blade 32 stirs the materials and additives in the fermentation box 3. The first L-shaped plate 5 and the second L-shaped plate 29 support and fix the driving shaft 7.

[0021] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the driving assembly further includes a half-toothed gear 8, a toothed plate 9, a limiting block 15, a sliding groove 16, a connecting block 17 and a sliding block 41; The switch assembly 44 includes a fixed shaft 19, a switch plate 22, a U-shaped block 23, a first limiting shaft 28, a control plate 24, a second limiting shaft 34 and a lifting block 25; The half-toothed gear 8 is fixedly arranged on the driving shaft 7; the connecting block 17 is fixedly connected to the lifting block 25; the limiting block 15 is fixedly arranged at one end of the connecting block 17; the sliding groove 16 is opened in the limiting block 15; the sliding block 41 is slidably arranged in the sliding groove 16; the tooth plate 9 is fixedly arranged on the top of the sliding block 41, and the tooth plate 9 is meshed with the half-toothed gear 8; The fixed shafts 19 are provided with two and are symmetrically fixed on the support plate 33; the switch plate 22 is rotatably provided on the fixed shaft 19; the U-shaped block 23 is fixedly provided at the bottom of the switch plate 22; the first limiting shaft 28 is fixedly provided in the U-shaped block 23; the control plate 24 is rotatably provided on the first limiting shaft 28; the second limiting shaft 34 is fixedly provided on the lifting block 25; the other end of the control plate 24 is rotatably connected to the second limiting shaft 34; The tooth plate 9 is driven to rise and fall by rotating the half-tooth gear 8. The rising and falling tooth plate 9 allows the limiting block 15, the connecting block 17 and the lifting block 25 to move up and down. The lifting block 25 that moves up and down causes the control board 24 to rotate, allowing the U-shaped block 23 and the switch board 22 to rotate along with the fixed shaft 19. The rotating switch board 22 controls the materials in the fermentation box 3 to fall into the filter box 1 in an orderly manner, so as to prevent all the materials in the fermentation box 3 from falling into the filter box 1 at once, causing the materials and fermentation liquid to overflow from the filter box 1. The first limiting shaft 28 and the second limiting shaft 34 are used to cooperate with the lifting block 25 and the control board 24 to rotate.

[0022] See also Figure 2 , Figure 6 and Figure 7 As shown, the driving assembly further includes a first rotating wheel 20, a belt 21, a second rotating wheel 43 and a vibration rod 36; The filter assembly 46 includes a filter plate 18, a connecting column 38, a second spring 39, a vibration ring 37 and a mounting block 42; The first rotating wheel 20 is fixedly arranged at one end of the driving shaft 7; the vibration rod 36 is rotatably arranged in the filter box 1, and the vibration rod 36 penetrates the filter box 1; the second rotating wheel 43 is fixedly arranged at one end of the vibration rod 36; the belt 21 is sleeved on the first rotating wheel 20 and the second rotating wheel 43; The mounting block 42 is fixedly arranged in the filter box 1, and the mounting block 42 is provided with four symmetrically arranged in the filter box 1; the connecting column 38 is slidably arranged on the mounting block 42; the filter plate 18 is fixedly arranged on the top of the connecting column 38; the second spring 39 is sleeved on the connecting column 38, and the two ends of the second spring 39 are fixedly connected to the mounting block 42 and the connecting column 38 respectively; the vibration ring 37 is fixedly arranged on the vibration rod 36; The first rotating wheel 20 is driven to rotate by the driving shaft 7, and the rotating first rotating wheel 20 causes the belt 21 to rotate, thereby driving the second rotating wheel 43 to rotate. The rotation of the second rotating wheel 43 drives the vibration rod 36 to rotate, thereby causing the vibration ring 37 on the rotating rod to rotate. The rotating vibration ring 37 will lift up the filter plate 18 and the connecting column 38, allowing the filter plate 18 to leave the mounting block 42 and compress the second spring 39 on the connecting column 38. When the vibration ring 37 does not lift up the filter plate 18, the second spring 39 will pull the filter plate 18 back, causing the filter plate 18 to collide with the mounting block 42. This arrangement is to enable the fermentation liquid on the filter plate 18 to pass through the filter plate 18 smoothly, so that the material is intercepted.

[0023] See also Figure 1 , Figure 4 and Figure 5 As shown, the bottom of the support plate 33 is fixedly connected to a lifting rod 26; the lifting block 25 is slidably arranged on the lifting rod 26; a first spring 27 is sleeved on the lifting rod 26; the two ends of the first spring 27 are fixedly connected to the lifting block 25 and the support plate 33 respectively; When the lifting block 25 moves on the lifting rod 26, the lifting block 25 will pull the first spring 27. When the half-tooth gear 8 is no longer engaged with the tooth plate 9, the first spring 27 will pull the lifting block 25 back to its original position. This arrangement is to allow the switch plate 22 to fit with the fermentation box 3 when not working, so that the materials and additives in the fermentation box 3 can be fully mixed and fermented.

[0024] See also Figure 1 , Figure 4 and Figure 5As shown, the fermentation box 3 is fixedly connected with a support block 13; the support block 13 is rotatably connected with a moving rod 12; one end of the moving rod 12 is fixedly connected with a handle 11; the moving rod 12 is threadedly connected with a moving block 14; the tooth plate 9 is fixedly connected with a limiting column 10; the limiting column 10 passes through the moving block 14; The staff rotates the handle 11 to make the handle 11 drive the moving rod 12 to rotate, and the rotating moving rod 12 allows the moving block 14 to move, so that the moving block 14 can move left and right with the tooth plate 9 and the limiting column 10, and the sliding block 41 at the bottom of the tooth plate 9 will also move in the sliding groove 16. This arrangement is to ensure that when the material in the fermentation box 3 is fermenting, the switch plate 22 at the bottom will not be switched. When the switch plate 22 needs to be turned on and off, the staff rotates the handle 11 to make the tooth plate 9 mesh with the half-tooth gear 8, so that the switch plate 22 can be switched on and off to discharge the material.

[0025] See also Figure 1 As shown, a driving motor 6 is fixedly connected to the first L-shaped plate 5, and the driving motor 6 is connected to the driving shaft 7; two supporting blocks 13 are provided and symmetrically arranged on the fermentation box 3; The driving motor 6 drives the driving shaft 7 to rotate, so that the device works. The driving motor 6 provides kinetic energy for the driving shaft 7. The two support blocks 13 are provided to keep the moving rod 12 stable during rotation.

[0026] See also Figures 1 to 7 As shown, a method for preparing potassium polyglutamate comprises the following steps: S1: putting materials and additives into the fermentation box 3, and rotating the driven rod 31 to make the stirring blade 32 stir and mix the materials and additives in the fermentation box 3; S2: After the materials in the fermentation box 3 are stirred, mixed, and fermented statically, the control board 24 is moved by the lifting block 25 to rotate the switch board 22, and the rotating switch board 22 discharges the materials and fermentation liquid in the fermentation box 3 into the filter box 1; S3: When the fermentation liquid and the material fall onto the filter plate 18 in the filter box 1, the vibration rod 36 rotates to drive the vibration ring 37 to rotate, so that the filter plate 18 vibrates to filter the fermentation liquid on the filter plate 18 to the bottom of the filter box 1; S4: After all the fermentation liquid is filtered to the bottom of the filter box 1, the staff turns on the switch on the discharge pipe 4 to discharge the fermentation liquid from the filter box 1.

[0027] The working principle of the present invention is as follows: the fermented material is put into the fermentation box 3, and then the additive for fermentation is also put into the fermentation box 3, and then the driving component drives the stirring component 45 to rotate. This setting is to allow the stirring component 45 to stir the material and the additive in the fermentation box 3, so that the material and the additive can be fully mixed, and avoid the additive and the material are not completely mixed, resulting in insufficient fermentation of the material; After the fermentation of the material is completed, the switch component 44 is driven by the driving component to switch, so that the fermented material falls directly into the filter box 1 at the bottom. The switch component 44 is set to prevent the material in the fermentation box 3 from falling directly into the filter box 1, resulting in the filter box 1 being unable to receive all the material, causing the material to overflow and cause waste. This setting also avoids the need for staff to carry the material back and forth for filtering. After the material falls into the filter box 1, the driving component drives the filter component 46 to vibrate and filter the material, intercept the material and let the fermentation liquid fall into the bottom of the filter box 1 and then collect the fermentation liquid through the drainage pipe 4. This arrangement can separate the material box from the fermentation liquid, and obtain the complete fermentation liquid so that the staff can directly take the fermentation liquid for the next step of processing.

[0028] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A potassium polyglutamate preparation device, comprising a filter box (1), a fixing foot (2), a fermentation box (3) and a drainage pipe (4); characterized in that: It also includes a quantitative stirring and filtering unit arranged in the fermentation box (3); Two fixing feet (2) are provided and are symmetrically fixed on the top of the filter box (1); The fermentation box (3) is fixedly arranged on the fixed foot (2); The row pipe (4) is fixedly arranged at the bottom of the filter box (1); The quantitative stirring and filtering unit comprises a driving component, a stirring component (45), a switch component (44) and a filtering component (46); the driving component drives the stirring component (45) to rotate; the driving component drives the switch component (44) to move; and the driving component drives the filtering component (46) to vibrate; The material to be fermented and the additives for fermentation are placed in the fermentation box (3), and the driving component is used to drive the stirring component to stir the material so that the material and the fermentation additive are fully mixed. After being left to stand still, the driving component is used to drive the switch component (44) to switch the material so that the fermented material in the fermentation box (3) falls into the filter box (1). Then, the driving component drives the filter component (46) to filter the fermented material to obtain fermentation liquid, and then the fermentation liquid is discharged from the filter box (1) through the discharge pipe (4) at the bottom of the filter box (1).

2. A potassium polyglutamate preparation device according to claim 1, characterized in that, The driving assembly comprises a first L-shaped plate (5), a driving shaft (7), a second L-shaped plate (29) and a driven gear (40); The stirring assembly (45) comprises a support plate (33), a driven rod (31), a stirring blade (32) and a bevel gear (30); The first L-shaped plate (5) is fixedly arranged on the fermentation box (3); two second L-shaped plates (29) are provided and are symmetrically fixedly arranged in the fermentation box (3); the drive shaft (7) is rotatably arranged on the first L-shaped plate (5), and the drive shaft (7) passes through the second L-shaped plate (29) and the fermentation box (3); the driven gear (40) is fixedly arranged on the drive shaft (7); The support plate (33) is fixedly arranged in the fermentation box (3); the driven rod (31) is rotatably arranged on the top of the support plate (33); the stirring blade (32) is fixedly arranged on the driven rod (31); the bevel gear (30) is fixedly arranged on the top of the driven rod (31), and the bevel gear (30) is meshed with the driven gear (40).

3. A potassium polyglutamate preparation device according to claim 2, characterized in that, The driving assembly further comprises a half-toothed gear (8), a toothed plate (9), a limiting block (15), a sliding groove (16), a connecting block (17) and a sliding block (41); The switch assembly (44) comprises a fixed shaft (19), a switch plate (22), a U-shaped block (23), a first limiting shaft (28), a control plate (24), a second limiting shaft (34) and a lifting block (25); The half-toothed gear (8) is fixedly arranged on the driving shaft (7); the connecting block (17) is fixedly connected to the lifting block (25); the limiting block (15) is fixedly arranged at one end of the connecting block (17); the sliding groove (16) is opened in the limiting block (15); the sliding block (41) is slidably arranged in the sliding groove (16); the tooth plate (9) is fixedly arranged on the top of the sliding block (41), and the tooth plate (9) is meshed with the half-toothed gear (8); Two fixed shafts (19) are provided and are symmetrically fixed on the support plate (33); the switch plate (22) is rotatably provided on the fixed shaft (19); the U-shaped block (23) is fixedly provided at the bottom of the switch plate (22); the first limiting shaft (28) is fixedly provided in the U-shaped block (23); the control plate (24) is rotatably provided on the first limiting shaft (28); the second limiting shaft (34) is fixedly provided on the lifting block (25); and the other end of the control plate (24) is rotatably connected to the second limiting shaft (34).

4. A potassium polyglutamate preparation device according to claim 3, characterized in that, The driving assembly further comprises a first rotating wheel (20), a belt (21), a second rotating wheel (43) and a vibration rod (36); The filter assembly (46) comprises a filter plate (18), a connecting column (38), a second spring (39), a vibration ring (37) and a mounting block (42); Wherein, the first rotating wheel (20) is fixedly arranged at one end of the driving shaft (7); the vibration rod (36) is rotatably arranged in the filter box (1), and the vibration rod (36) penetrates the filter box (1); the second rotating wheel (43) is fixedly arranged at one end of the vibration rod (36); the belt (21) is sleeved on the first rotating wheel (20) and the second rotating wheel (43); The mounting block (42) is fixedly arranged in the filter box (1), and the mounting block (42) is provided with four symmetrically arranged in the filter box (1); the connecting column (38) is slidably arranged on the mounting block (42); the filter plate (18) is fixedly arranged on the top of the connecting column (38); the second spring (39) is sleeved on the connecting column (38), and the two ends of the second spring (39) are respectively fixedly connected to the mounting block (42) and the connecting column (38); and the vibration ring (37) is fixedly arranged on the vibration rod (36).

5. A potassium polyglutamate preparation device according to claim 4, characterized in that, The bottom of the support plate (33) is fixedly connected to a lifting rod (26); the lifting block (25) is slidably arranged on the lifting rod (26); a first spring (27) is sleeved on the lifting rod (26); and two ends of the first spring (27) are respectively fixedly connected to the lifting block (25) and the support plate (33).

6. A potassium polyglutamate preparation device according to claim 5, characterized in that, The fermentation box (3) is fixedly connected to a support block (13); the support block (13) is rotatably connected to a moving rod (12); one end of the moving rod (12) is fixedly connected to a handle (11); the moving rod (12) is threadedly connected to a moving block (14); the tooth plate (9) is fixedly connected to a limiting column (10); and the limiting column (10) passes through the moving block (14).

7. A potassium polyglutamate preparation device according to claim 6, characterized in that, A drive motor (6) is fixedly connected to the first L-shaped plate (5), and the drive motor (6) is in communication with the drive shaft (7); two support blocks (13) are provided and are symmetrically arranged on the fermentation box (3).

8. A method for preparing potassium polyglutamate, using the potassium polyglutamate preparation device according to claim 7, characterized in that: The preparation method comprises the following steps: S1: placing materials and additives into a fermentation box (3), and rotating a driven rod (31) to cause a stirring blade (32) to stir and mix the materials and additives in the fermentation box (3); S2: After the materials in the fermentation box (3) are stirred and mixed and then fermented statically, the control plate (24) is moved by the lifting block (25) to rotate the switch plate (22), and the rotating switch plate (22) discharges the materials and fermentation liquid in the fermentation box (3) into the filter box (1); S3: When the fermentation liquid and the material fall onto the filter plate (18) in the filter box (1), the vibration rod (36) rotates to drive the vibration ring (37) to rotate, so that the filter plate (18) vibrates and the fermentation liquid on the filter plate (18) is filtered to the bottom of the filter box (1); S4: After all the fermentation liquid is filtered to the bottom of the filter box (1), the staff turns on the switch on the discharge pipe (4) to discharge the fermentation liquid from the filter box (1).

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