A device for concentrating microbial fermentation liquid

Abstract

The present invention discloses a microbial fermentation liquid concentrating device, which relates to the field of microbial fermentation technology, and comprises a base, the top of the base is fixedly connected to a concentrating tank via four support rods, a discharge port is provided at the bottom of the concentrating tank, a pressure relief valve, a feed port and a motor are respectively provided at the top of the concentrating tank, the output shaft of the motor passes through the top of the concentrating tank and is fixedly connected to three stirring scrapers, and a heating structure is provided inside the concentrating tank, and the heating structure comprises a hollow heating box. The microbial fermentation liquid concentrating device described in the present invention can heat the fermentation liquid inside the concentrating tank uniformly, and at the same time can improve the heating efficiency, and avoid the situation where the temperature of the central area inside the concentrating tank is lower than the temperature of the inner wall of the concentrating tank, and at the same time can transfer the fermentation liquid in the bottom space inside the concentrating tank to the top layer for circulation, so that the heating and stirring are more uniform and sufficient.

Description

Technical Field

[0001] The invention relates to the technical field of microbial fermentation, and in particular to a device for concentrating microbial fermentation liquid. Background Art

[0002] 9-Hydroxy-androstenedione (9a-OH-AD) is an important steroid drug intermediate that can be used to synthesize a variety of corticosteroid hormone drugs, especially using phytosterols as substrates and 9a-OH-AD production as a measurement indicator. By optimizing parameters such as culture medium and conversion conditions, as well as small-scale tests in 15L fermenters and pilot-scale scale-up tests in 100L fermenters, it was achieved that a 20t fermenter can be converted for 96 hours with a phytosterol feed rate of 6%, and the substrate conversion rate reached an oil-free industrial production level of more than 95%. The concentration of microbial fermentation broth usually requires pouring the fermentation broth into a concentration tank and undergoing a series of procedures such as heating and stirring before it can be processed.

[0003] However, when a traditional concentrator is processing and heating the fermentation liquid, it is usually only possible to uniformly heat the outside of the concentration tank, and the inside of the concentration tank can only be gradually heated after the overall temperature of the concentration tank rises. In addition, during the process, the temperature near the center of the concentration tank is not as high as the temperature at the inner wall of the concentration tank, which will cause problems such as uneven heating inside the concentration tank and low heating efficiency. Therefore, the present invention proposes a microbial fermentation liquid concentrating device. Summary of the invention

[0004] The main purpose of the present invention is to provide a microbial fermentation liquid concentration device, which can effectively solve the technical problems raised in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A microbial fermentation liquid concentrating device comprises a base, the top of the base is fixedly connected to a concentrating tank via four support rods, a discharge port is provided at the bottom of the concentrating tank, a pressure relief valve, a feed port and a motor are respectively provided at the top of the concentrating tank, an output shaft of the motor passes through the top of the concentrating tank and is fixedly connected to three stirring scrapers, and a heating structure is provided inside the concentrating tank;

[0007] The heating structure includes a hollow heating box 1, which is fixedly arranged on the outside of the concentration tank, a pressure relief valve 2 is arranged on the outside of the hollow heating box 1, and a water outlet is arranged at the bottom of the hollow heating box 1. The hollow heating box 1 is fixedly connected to the hollow heating box 2 through four transmission pipes 1, the output shaft of the motor is fixedly connected to a transmission paddle, and one end of the transmission paddle is fixedly connected to a scraper 1, a support frame is fixedly arranged on the top of the base, a hot air blower is arranged on the top of the support frame, and a transmission pipe 2 is arranged on the top of the hot air blower, one end of the transmission pipe 2 is penetrated and connected with an annular pipe, and the outside of the annular pipe is penetrated and connected to the top of the hollow heating box 1 through a plurality of conduits.

[0008] As a preferred technical solution of the present invention, the heating structure also includes a stirring component, which is arranged inside the concentrating tank. The stirring component includes a hollow placing plate, which is rotatably arranged outside the output shaft of the motor, and the bottom of the hollow placing plate is fixedly connected to the hollow heating box through four guide rods, a gear ring is fixedly arranged outside the output shaft of the motor, and three gear plates are rotatably arranged inside the hollow placing plate, the gear plate and the gear ring are meshed and connected, and one end of the gear plate passes through the bottom of the hollow placing plate and is fixedly connected with a stirring roller.

[0009] As a preferred technical solution of the present invention, the heating structure also includes a scraping component 1, which is arranged on the inner side of the concentration tank. The scraping component 1 includes three connecting plates, and the connecting plate is fixedly connected to the stirring scraper. Scraper 2 is fixedly connected to one end of the connecting plate, and a fixing rod is fixedly arranged on the top of the scraper 2. An annular slide plate is fixedly arranged on the bottom of the hollow storage plate, and the fixing rod and the annular slide plate are slidably connected.

[0010] As a preferred technical solution of the present invention, the conveying paddle is arranged on the inner side of the second hollow heating box, and the hollow storage plate is penetrated by the output shaft of the motor.

[0011] As a preferred technical solution of the present invention, a filtering structure is arranged on the outside of the discharge port 1, and the filtering structure includes a filter box, three notches 1 are opened on both sides of the outside of the filter box, the filter box is slidably arranged on the outside of the discharge port, a discharge port 2 is opened at the bottom of the filter box, four fixed plates 1 are fixedly arranged on the outside of the filter box, filter plates 1, 2 and 3 are fixedly arranged on the inner side of the filter box, a blocking plate is fixedly arranged on the inner side of the filter box near the top, an electric push rod is arranged on the top of the base, one end of the electric push rod is fixedly connected to the bottom plate, and the bottom plate is fixedly connected to the bottom of the filter box through two connecting rods.

[0012] As a preferred technical solution of the present invention, a scraping component 2 is arranged on the inner side of the filter box, and the scraping component 2 includes a telescopic rod, and the bottom of the telescopic rod and the scraper 1 are fixedly connected, and a rotating plate is fixedly arranged on the outside of the telescopic rod, and one end of the telescopic rod is fixedly connected to a linkage rod, and three scrapers 4 are fixedly connected to the outside of the linkage rod, and four scrapers 5 are fixedly connected to the top of the scraper 4.

[0013] As a preferred technical solution of the present invention, one end of the telescopic rod is rotatably connected to the blocking plate, and the filter plate one, the filter plate two and the filter plate three are all penetrated by the linkage rod.

[0014] As a preferred technical solution of the present invention, the bottom surfaces of the three scrapers four are respectively flush with the top surfaces of the filter plate one, the filter plate two and the filter plate three at the corresponding positions, the scraper five is adaptively matched with the filter box, and the sealing plate is adaptively matched with the discharge port one of the concentration tank.

[0015] As a preferred technical solution of the present invention, an opening and closing structure is arranged on the outside of the filter box, and the opening and closing structure includes an annular opening and closing plate, and three notches 2 are opened on both sides of the outside of the annular opening and closing plate. The annular opening and closing plate is rotatably connected to the filter box, and two fixing plates 2 are fixedly arranged on the outside of the annular opening and closing plate, and the fixing plates 2 are threadedly connected with screws.

[0016] As a preferred technical solution of the present invention, a threaded hole is opened on the top of the fixing plate 1, the thread of the screw is adaptively matched with the thread of the threaded hole of the fixing plate 1, and the notch 1 is adaptively matched with the notch 2.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting up the heating structure, it is beneficial to evenly heat the fermentation liquid inside the concentration tank, and at the same time, it can improve the heating efficiency, avoid the situation where the temperature of the central area inside the concentration tank is lower than the temperature of the inner wall of the concentration tank, and at the same time, the fermentation liquid in the bottom space inside the concentration tank can be transferred to the top layer for circulation, so that the heating and stirring are more uniform and sufficient;

[0019] 2. By setting a stirring component and a heating structure, the fermentation liquid inside the concentration tank can be fully stirred and heated;

[0020] 3. By setting a scraping component and cooperating with the heating structure, it is helpful to scrape off the debris on the surface of the hollow heating box to prevent the debris from adhering to its surface and affecting the heating effect;

[0021] 4. By setting up a filtering structure in conjunction with a heating structure, it is beneficial for the fermentation liquid to be filtered in multiple stages after processing in the concentration tank, so that the filtering is sufficient and the effect of solid-liquid separation is achieved;

[0022] 5. By setting the opening and closing structure in conjunction with the filtering structure, it is beneficial to seal the filter box before the work is completed so that its outside is closed. After the work is completed, the gap outside the filter box can be leaked to facilitate the subsequent discharge of debris;

[0023] 6. By setting up the scraping component 2 in conjunction with the filtering structure and the opening and closing structure, it is helpful to discharge the debris on the surfaces of the filter plate 1, the filter plate 2 and the filter plate 3. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall cross-sectional three-dimensional structure of a microbial fermentation liquid concentration device of the present invention;

[0025] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of a hollow heating box 1 of a microbial fermentation liquid concentration device of the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of a support frame of a microbial fermentation liquid concentration device of the present invention;

[0027] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of a hollow heating box 2 of a microbial fermentation liquid concentration device of the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of a hollow storage tray of a microbial fermentation liquid concentration device of the present invention;

[0029] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of a filter box of a microbial fermentation liquid concentration device of the present invention;

[0030] Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of an annular opening and closing plate of a microbial fermentation liquid concentration device of the present invention;

[0031] Figure 8 It is a schematic diagram of the split three-dimensional structure of an annular opening and closing plate and a filter box of a microbial fermentation liquid concentration device of the present invention;

[0032] Fig. 9 It is a schematic diagram of the overall cross-sectional side view of a microbial fermentation liquid concentration device of the present invention;

[0033] Fig.10 The figure is a schematic diagram of the overall three-dimensional structure of a microbial fermentation liquid concentration device of the present invention.

[0034] In the figure: 1. base; 2. support rod; 3. concentration tank; 4. pressure relief valve 1; 5. feed port; 6. motor; 7. stirring scraper; 8. heating structure; 9. filtering structure; 10. opening and closing structure; 11. hollow heating box 1; 12. pressure relief valve 2; 13. water outlet; 14. transmission pipe 1; 15. hollow heating box 2; 16. transmission paddle; 17. scraper 1; 18. support frame; 19. hot air blower; 20. transmission pipe 2; 21. annular pipe; 22. hollow storage tray; 23. guide rod; 24. gear Wheel ring; 25. Gear plate; 26. Agitating roller; 27. Connecting plate; 28. Scraper 2; 29. ​​Fixing rod; 30. Annular slide plate; 31. Filter box; 32. Fixing plate 1; 33. Filter plate 1; 34. Filter plate 2; 35. Filter plate 3; 36. Sealing plate; 37. Electric push rod; 38. Bottom plate; 39. Connecting rod; 40. Telescopic rod; 41. Rotating plate; 42. Linking rod; 43. Scraper 4; 44. Scraper 5; 45. Annular opening and closing plate; 46. Fixing plate 2; 47. Screws. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] like Figure 1-Figure 10 As shown, a microbial fermentation liquid concentrating device comprises a base 1, the top of the base 1 is fixedly connected to a concentrating tank 3 through four support rods 2, a discharge port 1 is provided at the bottom of the concentrating tank 3, a pressure relief valve 1 4, a feed port 5 and a motor 6 are respectively provided at the top of the concentrating tank 3, the output shaft of the motor 6 passes through the top of the concentrating tank 3 and is fixedly connected to three stirring scrapers 7, and a heating structure 8 is provided inside the concentrating tank 3;

[0037] The heating structure 8 includes a hollow heating box 11, which is fixedly arranged on the outside of the concentration tank 3. A pressure relief valve 12 is arranged on the outside of the hollow heating box 11, and a water outlet 13 is arranged at the bottom of the hollow heating box 11. The hollow heating box 11 is fixedly connected to a hollow heating box 15 through four transmission pipes 14. The output shaft of the motor 6 is fixedly connected to a transmission paddle 16, and one end of the transmission paddle 16 is fixedly connected to a scraper 17. A support frame 18 is fixedly arranged on the top of the base 1, a hot air blower 19 is arranged on the top of the support frame 18, and a transmission pipe 20 is arranged on the top of the hot air blower 19. One end of the transmission pipe 20 is penetrated and connected with an annular pipe 21, and the outside of the annular pipe 21 is penetrated and connected to the top of the hollow heating box 11 through a plurality of conduits.

[0038] The heating structure 8 allows the fermentation liquid inside the concentration tank 3 to be heated evenly, and at the same time can improve the heating efficiency, avoiding the situation where the temperature of the central area inside the concentration tank 3 is lower than the temperature of the inner wall of the concentration tank 3. At the same time, the fermentation liquid in the bottom space inside the concentration tank 3 can be transferred to the top layer for circulation, so that the heating and stirring are more uniform and sufficient.

[0039] In this embodiment, the heating structure 8 also includes a stirring component, which is arranged inside the concentrating tank 3. The stirring component includes a hollow placing plate 22. The hollow placing plate 22 is rotatably arranged outside the output shaft of the motor 6, and the bottom of the hollow placing plate 22 is fixedly connected to the hollow heating box 15 through four guide rods 23. A gear ring 24 is fixedly arranged outside the output shaft of the motor 6, and three gear plates 25 are rotatably arranged inside the hollow placing plate 22. The gear plate 25 and the gear ring 24 are meshingly connected, and one end of the gear plate 25 passes through the bottom of the hollow placing plate 22 and is fixedly connected with a stirring roller 26.

[0040] The stirring assembly allows the fermentation liquid inside the concentration tank 3 to be fully stirred to facilitate heating.

[0041] In this embodiment, the heating structure 8 also includes a scraping component 1, which is arranged on the inner side of the concentration tank 3. The scraping component 1 includes three connecting plates 27. The connecting plate 27 is fixedly connected to the stirring scraper 7. One end of the connecting plate 27 is fixedly connected to a scraper 28. A fixing rod 29 is fixedly arranged on the top of the scraper 28. An annular slide plate 30 is fixedly arranged on the bottom of the hollow storage plate 22. The fixing rod 29 and the annular slide plate 30 are slidably connected.

[0042] The scraping component 1 can scrape away the debris on the surface of the hollow heating box 2 15 to prevent the debris from adhering to the surface and affecting the heating effect.

[0043] In this embodiment, the conveying paddle 16 is arranged on the inner side of the hollow heating box 15, and the hollow storage plate 22 is penetrated by the output shaft of the motor 6.

[0044] The conveying paddle 16 can convey the fermentation liquid in the bottom space inside the concentration tank 3 to the top layer for circulation.

[0045] In this embodiment, a filtering structure 9 is provided on the outside of the discharge port 1, and the filtering structure 9 includes a filter box 31. Three notches 1 are provided on both sides of the outside of the filter box 31. The filter box 31 is slidably provided on the outside of the discharge port. A discharge port 2 is provided at the bottom of the filter box 31. Four fixed plates 1 32 are fixedly provided on the outside of the filter box 31. Filter plates 1 33, 2 34 and 35 are fixedly provided on the inner side of the filter box 31 respectively. A sealing plate 36 is fixedly provided on the inner side of the filter box 31 near the top. An electric push rod 37 is provided on the top of the base 1. One end of the electric push rod 37 is fixedly connected to a bottom plate 38. The bottom plate 38 is fixedly connected to the bottom of the filter box 31 through two connecting rods 39.

[0046] The filtering structure 9 allows the fermentation liquid to be subjected to multi-stage filtering after being processed inside the concentration tank 3, so that the filtering is sufficient.

[0047] In this embodiment, a scraping assembly 2 is provided on the inner side of the filter box 31, and the scraping assembly 2 includes a telescopic rod 40, the telescopic rod 40 and the bottom of the scraper 17 are fixedly connected, a rotating plate 41 is fixedly provided on the outside of the telescopic rod 40, one end of the telescopic rod 40 is fixedly connected to a linkage rod 42, three scrapers 43 are fixedly connected to the outside of the linkage rod 42, and four scrapers 5 44 are fixedly connected to the top of the scraper 43.

[0048] The scraper assembly 2 can prevent the surfaces of the filter plate 1 33 , the filter plate 2 34 and the filter plate 3 35 from being clogged by debris, resulting in low filtering efficiency.

[0049] In this embodiment, one end of the telescopic rod 40 is rotatably connected to the blocking plate 36 , and the filter plate 1 33 , the filter plate 2 34 and the filter plate 3 35 are all penetrated by the linkage rod 42 .

[0050] The blocking plate 36 has a limiting effect on the discharge port.

[0051] In this embodiment, the bottom surfaces of the three scraper plates 43 are flush with the top surfaces of the filter plate 1 33, the filter plate 2 34 and the filter plate 3 35 at the corresponding positions, the scraper plate 5 44 is adaptively matched with the filter box 31, and the sealing plate 36 is adaptively matched with the discharge port 1 of the concentration tank 3.

[0052] Filter plate 1 33 , filter plate 2 34 and filter plate 3 35 can perform graded filtration on the fermentation liquid.

[0053] In this embodiment, an opening and closing structure 10 is provided on the outside of the filter box 31, and the opening and closing structure 10 includes an annular opening and closing plate 45. Three notches 2 are provided on both sides of the outside of the annular opening and closing plate 45. The annular opening and closing plate 45 is rotatably connected to the filter box 31. Two fixing plates 2 46 are fixedly provided on the outside of the annular opening and closing plate 45, and the fixing plates 2 46 are threadedly connected with screws 47.

[0054] The opening and closing structure 10 can discharge the debris on the surface of the filter plate 1 33 , the filter plate 2 34 and the filter plate 3 35 after the work is completed.

[0055] In this embodiment, a threaded hole is opened on the top of the fixing plate 1 32 , the thread of the screw 47 is adaptively matched with the thread of the threaded hole of the fixing plate 1 32 , and the notch 1 is adaptively matched with the notch 2.

[0056] The screw 47 serves to limit the position of the annular opening and closing plate 45 .

[0057] It should be noted that the present invention is a microbial fermentation liquid concentration device. Before use, the electric push rod 37 is started to act on the filter box 31 through the bottom plate 38 and the connecting rod 39 to move the filter box 31 as a whole to a predetermined position. At this time, the blocking plate 36 blocks the discharge port of the concentration tank 3, and then the fermentation liquid is poured into the concentration tank 3 from the feed port 5. Then the feed port 5 and the water outlet 13 are closed, and the motor 6 and the hot air blower 19 are turned on to make it reach the working operating conditions. In addition, Figure 1 and Fig.10 is the initial state of the device;

[0058] The hot air blower 19 transmits the generated steam to the annular tube 21 through the transmission pipe 20, and finally enters the interior of the hollow heating box 11 through the conduit, so that the interior of the hollow heating box 11 is heated by steam, and the steam inside the hollow heating box 11 enters the interior of the hollow heating box 2 15 through the transmission pipe 14, so that the interior of the hollow heating box 2 15 is heated by steam, and finally the fermentation liquid inside the concentration tank 3 is heated by the hollow heating box 11 and the hollow heating box 2 15 at the same time, avoiding the uneven heating of the fermentation liquid inside the concentration tank 3 and improving the heating efficiency at the same time. When the steam pressure inside the hollow heating box 11 and the hollow heating box 2 15 is too large, the pressure relief valve 2 12 will perform pressure relief work. In addition, when the internal pressure of the concentration tank 3 is too large, the pressure relief valve 14 will continue to perform pressure relief work, and open the water outlet 13 after the device is completed. The water generated by the steam inside the hollow heating box 11 and the hollow heating box 2 15 will be discharged from the water outlet 13.

[0059] The motor 6 acts on the stirring scraper 7 to rotate inside the concentration tank 3, and at the same time, scrapes off the debris of the fermentation liquid on the inner wall of the concentration tank 3. The motor 6 acts on the conveying paddle 16 to rotate so that the fermentation liquid in the bottom space inside the concentration tank 3 is conveyed to the top layer, so that the fermentation liquid is mixed and heated more evenly. The conveying paddle 16 acts on the scraper 17 to scrape the inner bottom surface of the concentration tank 3. The stirring scraper 7 will act on the scraper 2 28 through the connecting plate 27 to synchronously rotate to scrape the outside of the hollow heating box 2 15 to prevent the debris of the fermentation liquid from adhering to its surface and affecting the heating effect. The motor 6 also acts on the gear ring 24 and the gear plate 25 to mesh, so that the gear plate 25 rotates with the stirring roller 26 to stir the fermentation liquid. The rotation of the scraper 17 also rotates with the telescopic rod 40, so that the rotating plate 41 rotates synchronously, and the rotating plate 41 rotates to stir the fermentation liquid located inside the discharge port 1 of the concentration tank 3;

[0060] When the fermentation liquid in the concentration tank 3 is processed, the hot air blower 19 is turned off, and a collection device is placed outside the discharge port 2 of the filter box 31. The filter box 31 is moved down as a whole to the initial position by the electric push rod 37 and then stops. At this time, the blocking plate 36 moves down to release the restriction on the discharge port 1, and the fermentation liquid in the concentration tank 3 flows into the inside of the filter box 31 through the discharge port 1, and then is filtered by the filter plate 1 33, the filter plate 2 34 and the filter plate 3 35 in turn, and then flows into the collection device through the discharge port 2.

[0061] The motor 6 acts on the telescopic rod 40 to rotate, and the telescopic rod 40 synchronously moves with the linkage rod 42, so that the scraper 43 and the scraper 5 44 scrape the surfaces of the filter plate 1 33, the filter plate 2 34, the filter plate 3 35 and the inner wall of the filter box 31;

[0062] After the fermentation liquid inside the concentration tank 3 and the filter box 31 is collected by the collecting equipment, remove the screw 47, rotate the annular opening and closing plate 45 ninety degrees and then install the screw 47. At this time, the positions of the gap one and the gap two match. Under the action of the motor 6, the scraper four 43 and the scraper five 44 rotate and scrape the debris on the surface of the filter plate one 33, the filter plate two 34 and the filter plate three 35, and finally discharge it from the gap one and the gap two.

Claims

1. A microbial fermentation liquid concentrating device, comprising a base (1), the top of the base (1) being fixedly connected to a concentrating tank (3) via four support rods (2), the bottom of the concentrating tank (3) being provided with a discharge port, the top of the concentrating tank (3) being provided with a pressure relief valve (4), a feed port (5) and a motor (6), the output shaft of the motor (6) passing through the top of the concentrating tank (3) and being fixedly connected to three stirring scrapers (7), characterized in that: A heating structure (8) is provided inside the concentration tank (3); The heating structure (8) comprises a hollow heating box (11), the hollow heating box (11) being fixedly arranged outside the concentration tank (3), the hollow heating box (11) being provided with a pressure relief valve (12) outside, and a water outlet (13) being provided at the bottom of the hollow heating box (11), the hollow heating box (11) being fixedly connected to the hollow heating box (15) via four transmission pipes (14), the output shaft of the motor (6) being fixedly connected to a transmission paddle (16), and one end of the transmission paddle (16) being fixedly connected to a scraper (17), a support frame (18) being fixedly arranged on the top of the base (1), a hot air blower (19) being provided on the top of the hot air blower (19), a transmission pipe (20) being provided on the top of the hot air blower (19), one end of the transmission pipe (20) being connected through an annular pipe (21), and the outside of the annular pipe (21) being connected through a plurality of conduits and the top of the hollow heating box (11); A filtering structure (9) is arranged outside the discharge port 1, and the filtering structure (9) comprises a filtering box (31), three notches 1 are provided on both sides of the outside of the filtering box (31), the filtering box (31) is slidably arranged outside the discharge port, a discharge port 2 is provided at the bottom of the filtering box (31), four fixing plates 1 (32) are fixedly arranged outside the filtering box (31), a filtering plate 1 (33), a filtering plate 2 (34) and a filtering plate 3 (35) are fixedly arranged inside the filtering box (31), a blocking plate (36) is fixedly arranged near the top of the inside of the filtering box (31), an electric push rod (37) is arranged at the top of the base (1), one end of the electric push rod (37) is fixedly connected to a bottom plate (38), and the bottom plate (38) is fixedly connected to the bottom of the filtering box (31) via two connecting rods (39).

2. A microbial fermentation liquid concentration device according to claim 1, characterized in that: The heating structure (8) further comprises a stirring assembly, which is arranged inside the concentration tank (3). The stirring assembly comprises a hollow storage tray (22). The hollow storage tray (22) is rotatably arranged outside the output shaft of the motor (6), and the bottom of the hollow storage tray (22) is fixedly connected to the hollow heating box (15) through four guide rods (23). A gear ring (24) is fixedly arranged outside the output shaft of the motor (6), and three gear plates (25) are rotatably arranged inside the hollow storage tray (22). The gear plates (25) and the gear ring (24) are meshingly connected, and one end of the gear plate (25) passes through the bottom of the hollow storage tray (22) and is fixedly connected to a stirring roller (26).

3. A microbial fermentation liquid concentration device according to claim 2, characterized in that: The heating structure (8) further comprises a scraper assembly 1, the scraper assembly 1 being arranged on the inner side of the concentration tank (3), the scraper assembly 1 comprising three connecting plates (27), the connecting plate (27) being fixedly connected to the stirring scraper (7), one end of the connecting plate (27) being fixedly connected to a scraper 2 (28), a fixing rod (29) being fixedly arranged on the top of the scraper 2 (28), an annular slide plate (30) being fixedly arranged on the bottom of the hollow storage tray (22), and the fixing rod (29) and the annular slide plate (30) being slidably connected.

4. A microbial fermentation liquid concentration device according to claim 2, characterized in that: The conveying paddle (16) is arranged on the inner side of the second hollow heating box (15), and the hollow storage tray (22) is penetrated by the output shaft of the motor (6).

5. A microbial fermentation liquid concentration device according to claim 1, characterized in that: A scraper assembly 2 is arranged on the inner side of the filter box (31), and the scraper assembly 2 comprises a telescopic rod (40), the telescopic rod (40) is fixedly connected to the bottom of the scraper 1 (17), a rotating plate (41) is fixedly arranged on the outside of the telescopic rod (40), one end of the telescopic rod (40) is fixedly connected to a linkage rod (42), the outside of the linkage rod (42) is fixedly connected to three scrapers 4 (43), and the top of the scraper 4 (43) is fixedly connected to four scrapers 5 (44).

6. A microbial fermentation liquid concentration device according to claim 5, characterized in that: One end of the telescopic rod (40) is rotatably connected to the blocking plate (36), and the filter plate 1 (33), the filter plate 2 (34), and the filter plate 3 (35) are all penetrated by the linkage rod (42).

7. A microbial fermentation liquid concentration device according to claim 5, characterized in that: The bottom surfaces of the three scraper plates four (43) are respectively flush with the top surfaces of the filter plate one (33), the filter plate two (34) and the filter plate three (35) at the corresponding positions; the scraper plate five (44) is adaptively matched with the filter box (31); and the blocking plate (36) is adaptively matched with the discharge port one of the concentration tank (3).

8. A microbial fermentation liquid concentration device according to claim 5, characterized in that: The filter box (31) is provided with an opening and closing structure (10) on the outside. The opening and closing structure (10) comprises an annular opening and closing plate (45). Three notches (2) are provided on both sides of the outside of the annular opening and closing plate (45). The annular opening and closing plate (45) is rotatably connected to the filter box (31). Two fixing plates (46) are fixedly provided on the outside of the annular opening and closing plate (45). The fixing plates (46) are connected to screws (47) via threads.

9. A microbial fermentation liquid concentration device according to claim 8, characterized in that: A threaded hole is provided at the top of the fixing plate 1 (32), the thread of the screw (47) and the thread of the threaded hole of the fixing plate 1 (32) are adaptively matched, and the notch 1 and the notch 2 are adaptively matched.

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