Liquid whey membrane separation concentration device

Abstract

The application discloses a liquid whey membrane separation and concentration device, which comprises a shell, a first separation assembly and a second separation assembly are arranged in the shell, the first separation assembly and the second separation assembly are arranged in series, the second separation assembly is connected with a material collecting bin, the material collecting bin is arranged in the shell, a first separation opening is arranged on the first separation assembly, a second separation opening is arranged on the second separation assembly, a feeding opening is arranged on the shell, and the feeding opening is communicated with the first separation assembly.

Description

Technical Field

[0001] This invention relates to the field of separation and concentration technology, specifically to a liquid whey membrane separation and concentration device. Background Technology

[0002] Whey is a byproduct of cheese and casein production. 10 kg of fresh milk can produce 1 kg of cheese and 9 kg of whey wastewater. The COD (chemical oxygen demand) content of this whey wastewater is higher than 8000 mg / L, which cannot meet the discharge standards for industrial wastewater. At the same time, the whey protein content in the whey wastewater is low (generally 0.6-0.8%) and the water content is above 95%, making it unsuitable for direct milling. Therefore, the treatment of whey wastewater is an urgent problem for cheese and casein production companies.

[0003] Existing separation and concentration devices use a single set of separation membranes, which only treat whey wastewater once, resulting in poor treatment efficiency. Summary of the Invention

[0004] This invention provides a liquid whey membrane separation and concentration device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A liquid whey membrane separation and concentration device includes a housing, in which a first separation component and a second separation component are disposed, the first separation component and the second separation component are arranged in series, the second separation component is connected to a collection bin, the collection bin is disposed inside the housing, the first separation component is provided with a first separation port, the second separation component is provided with a second separation port, and the housing is provided with a feed port, the feed port being connected to the first separation component.

[0007] Preferably, the first separation component includes a first separation housing, the first separation housing is provided with a first separation inlet, and the first separation inlet is connected to the inlet;

[0008] The first separation housing is provided with a first separation membrane plate, which is located below the first separation inlet. A cavity is provided below the first separation membrane plate, and the cavity below the first separation membrane plate is connected to the second separation component.

[0009] Preferably, a driving component is provided on the first separation housing, and a driving shaft is fixedly connected to the output end of the driving component. The driving shaft passes through the first separation housing and is located inside the first separation housing. The driving shaft is rotatably connected to the center of the first separation membrane plate, and a toothed disc is provided on the outer periphery of the driving shaft. The toothed disc is fixedly connected to the first separation membrane plate.

[0010] A follower cover is fixedly connected to the lower end of the drive shaft, and the follower cover is rotatably connected to the first separation membrane plate;

[0011] A follower shaft is rotatably connected to the follower cover. A gear is provided at one end of the follower shaft inside the follower cover, and the end of the follower shaft inside the follower cover meshes with a gear plate. A pressure scraping rotating component is connected to the end of the follower shaft outside the follower cover, and the pressure scraping rotating component contacts the first separation membrane plate.

[0012] Preferably, the first separation membrane plate is provided with a gap, and the first separation port is provided on the gap of the first separation membrane plate. The first separation port includes a sealing plate and a receiving box. The sealing plate is inserted into the gap of the first separation membrane plate, and a receiving box is provided below the sealing plate. The sealing plate and the receiving box are slidably connected to the first separation housing. An actuating element is connected to one end of the sealing plate located on the outside of the first separation housing. The actuating element is fixedly connected to the first separation housing.

[0013] Preferably, the pressing and scraping rotating component is provided with a plurality of scraper assemblies, and the scraper assemblies are evenly arranged around the follower rotating shaft;

[0014] The scraper assembly includes a mounting plate, which is fixedly connected to a drive shaft. The mounting plate has extension bars at both ends, and a sliding shaft is rotatably connected to the extension bars. A torsion spring is provided between the sliding shaft and the extension bars, and the two ends of the torsion spring are fixedly connected to the sliding shaft and the extension bars, respectively.

[0015] A scraper is slidably connected to the sliding shaft.

[0016] Preferably, a first elastic element is provided between the scraper and the mounting plate, and the two ends of the first elastic element are fixedly connected to the scraper and the mounting plate, respectively.

[0017] Preferably, a drive pressure rod is rotatably connected to the scraper, the drive pressure rod is slidably connected to the mounting plate, a drive block is fixedly connected to the drive pressure rod, the drive block is slidably connected to the mounting plate, a follower frame is fixedly connected to the drive block, the follower frame is slidably connected to the mounting plate, and one end of a connecting rod is rotatably connected to both sides of the follower frame, and a push rod is rotatably connected to the other end of the connecting rod, the push rod being slidably connected to the mounting plate;

[0018] The push rod is equipped with a rack;

[0019] A limiting plate is rotatably connected to the mounting plate, and a gear that meshes with the rack on the push rod is fixedly connected to the limiting plate.

[0020] Preferably, the second separation component includes a second separation shell, which is provided with a first outlet, a second outlet, and an inlet. The inlet is connected to the first separation component, the first outlet is connected to the second separation port, and the second outlet is connected to the collection bin.

[0021] Preferably, a diversion sleeve is inserted into the second separation housing, a second separation membrane plate is disposed inside the diversion sleeve, a linkage shaft is rotatably connected inside the second separation membrane plate, and a spiral strip is fixedly connected to the linkage shaft;

[0022] The upper end of the linkage shaft passes through the diversion sleeve and the second separation membrane plate. The upper end of the linkage shaft is fixedly connected to the first guide plate. A second elastic element is provided between the first guide plate and the diversion sleeve.

[0023] A second guide plate is fixedly connected to the lower end of the linkage shaft;

[0024] The lower end of the diversion sleeve is connected to the first outlet, and a sealing valve is provided between the diversion sleeve and the first outlet;

[0025] The lower end of the second separation membrane plate is connected to the second outlet, which is located inside the first outlet.

[0026] Preferably, the first guide plate is provided with a guide strip, and the guide strip is arc-shaped.

[0027] Compared with the prior art, the present invention has at least the following beneficial effects:

[0028] This application sets up two sets of separation components, and the first separation component and the second separation component are connected in series. That is, after the whey wastewater is treated by the first separation component, the treated liquid will enter the next set of separation components for further treatment. Through the two treatments by the two sets of separation components, the treatment effect of whey wastewater can be greatly improved. Colloidal particles and substances with relatively high molecular weight that are blocked by the first separation component and the second separation component are collected through the first separation port and the second separation port. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the first separation component structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the pressure scraper drive structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the pressure scraper component structure of the present invention;

[0033] Figure 5This is a schematic diagram of the second separation component structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the flow guide plate structure of the present invention.

[0035] In the diagram: 1. Shell; 2. First separation assembly; 3. Second separation assembly; 4. Collection bin; 5. First separation port; 6. Second separation port; 7. Pipeline; 8. Inlet; 9. First separation shell; 10. First separation inlet; 11. Drive component; 12. Drive shaft; 13. Pressing and scraping rotating component; 14. First separation membrane plate; 15. Sealing plate; 16. Receiver box; 17. Starter component; 18. Follower cover; 19. Gear disc; 20. Follower shaft; 21. Mounting plate; 22. Scraper; 23. Extension 24. Sliding shaft; 25. First elastic element; 26. Torsion spring; 27. Follower frame; 28. Drive block; 29. ​​Drive pressure rod; 30. Connecting rod; 31. Push rod; 32. Limiting plate; 33. First guide plate; 34. Second elastic element; 35. Diverter sleeve; 36. Second separation membrane plate; 37. Second separation shell; 38. Linkage shaft; 39. Spiral strip; 40. Second guide plate; 41. Sealing valve; 42. First outlet; 43. Second outlet; 44. Inlet; 45. Guide strip. Detailed Implementation

[0036] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the invention. They are merely used to distinguish protective components or operations described using the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0037] Example 1

[0038] Please refer to Figure 1 A liquid whey membrane separation and concentration device includes a housing 1, a first separation component 2 and a second separation component 3 disposed inside the housing 1, the first separation component 2 and the second separation component 3 being arranged in series, the second separation component 3 being connected to a collection bin 4 disposed inside the housing 1, the first separation component 2 being provided with a first separation port 5, the second separation component 3 being provided with a second separation port 6, and the housing 1 being provided with a feed inlet 8, the feed inlet 8 being connected to the first separation component 2.

[0039] Preferably, the first separation component 2 and the second separation component 3 can be configured as two identical sets of separation components or as two different sets of separation components.

[0040] The working principle and beneficial effects of the above scheme are as follows:

[0041] This application sets up two sets of separation components, and the first separation component 2 and the second separation component 3 are connected in series. That is, after the whey wastewater is treated by the first separation component, the treated liquid will enter the next set of separation components for further treatment. Through the two treatments by the two sets of separation components, the treatment effect of whey wastewater can be greatly improved. The colloids, particles and substances with relatively high molecular weight blocked by the first separation component 2 and the second separation component 3 are collected through the first separation port 5 and the second separation port 6.

[0042] Example 2

[0043] Please refer to Figures 2-4 Based on embodiment 1, the first separation component 2 includes a first separation housing 9, on which a first separation inlet 10 is provided, and the first separation inlet 10 is connected to the inlet 8;

[0044] The first separation housing 9 is provided with a first separation membrane plate 14, which is located below the first separation inlet 10. A cavity is provided below the first separation membrane plate 14, and the cavity below the first separation membrane plate 14 is connected to the second separation component 3.

[0045] A driving component 11 is provided on the first separation housing 9. A driving shaft 12 is fixedly connected to the output end of the driving component 11. The driving shaft 12 passes through the first separation housing 9 and is located inside the first separation housing 9. The driving shaft 12 is rotatably connected to the center of the first separation membrane plate 14. A toothed disk 19 is provided on the outer periphery of the driving shaft 12. The toothed disk 19 is fixedly connected to the first separation membrane plate 14.

[0046] The lower end of the drive shaft 12 is fixedly connected to a follower cover 18, which is rotatably connected to the first separation membrane plate 14.

[0047] A follower shaft 20 is rotatably connected to the follower cover 18. One end of the follower shaft 20 located inside the follower cover 18 is provided with a gear, and the end of the follower shaft 20 located inside the follower cover 18 meshes with the gear disk 19. The end of the follower shaft 20 located outside the follower cover 18 is connected to a pressure scraping rotating component 13, and the pressure scraping rotating component 13 contacts the first separation membrane plate 14.

[0048] The first separation membrane plate 14 is provided with a gap, and the first separation port 5 is provided on the gap of the first separation membrane plate 14. The first separation port 5 includes a sealing plate 15 and a receiving box 16. The sealing plate 15 is inserted into the gap on the first separation membrane plate 14. The receiving box 16 is provided below the sealing plate 15. The sealing plate 15 and the receiving box 16 are slidably connected to the first separation housing 9. The end of the sealing plate 15 located on the outside of the first separation housing 9 is connected to an actuating element 17 (which can be an electric telescopic rod). The actuating element 17 is fixedly connected to the first separation housing 9.

[0049] The pressing and scraping rotating part 13 is provided with a plurality of scraper assemblies, and the scraper assemblies are evenly arranged around the follower rotating shaft 20.

[0050] The scraper assembly includes a mounting plate 21, which is fixedly connected to the drive shaft 12. The mounting plate 21 has extension bars 23 at both ends. A sliding shaft 24 is rotatably connected to the extension bars 23. A torsion spring 26 is provided between the sliding shaft 24 and the extension bars 23. The two ends of the torsion spring 26 are fixedly connected to the sliding shaft 24 and the extension bars 23, respectively.

[0051] A scraper 22 is slidably connected to the sliding shaft 24.

[0052] A first elastic element 25 is provided between the scraper 22 and the mounting plate 21, and the two ends of the first elastic element 25 are fixedly connected to the scraper 22 and the mounting plate 21 respectively.

[0053] A drive pressure rod 29 is rotatably connected to the scraper 22. The drive pressure rod 29 is slidably connected to the mounting plate 21. A drive block 28 is fixedly connected to the drive pressure rod 29. The drive block 28 is slidably connected to the mounting plate 21. A follower frame 27 is fixedly connected to the drive block 28. The follower frame 27 is slidably connected to the mounting plate 21. One end of a connecting rod 30 is rotatably connected to both sides of the follower frame 27. The other end of the connecting rod 30 is rotatably connected to a push rod 31. The push rod 31 is slidably connected to the mounting plate 21.

[0054] The push rod 31 is equipped with a rack;

[0055] A limiting plate 32 is rotatably connected to the mounting plate 21, and a gear that meshes with the rack on the push rod 31 is fixedly connected to the limiting plate 32.

[0056] The working principle and beneficial effects of the above scheme are as follows:

[0057] After whey wastewater enters the first separation shell 9 through the first separation inlet 10, it continuously passes through the first separation membrane 14, where colloids, particles, and substances with relatively high molecular weights are blocked. Water and small solute particles pass through the first separation membrane 14 and enter the next set of separation components. Due to the continuous blocking by the first separation membrane 14, impurities accumulate on it, affecting wastewater treatment. The drive unit 11 drives the drive shaft 12 to rotate, which in turn drives the pressure scraper 13 to rotate around the drive shaft 12 via the follower cover 18. The toothed disc 19, which is fixed on the first separation membrane plate 14, meshes with the toothed disc 19. During the rotation of the scraping rotating part 13 around the drive shaft 12, it will also rotate around the follower shaft 20, thereby increasing the moving speed of the scraping rotating part 13 relative to the first separation membrane plate 14 (the moving speed of the scraping rotating part 13 relative to the first separation membrane plate 14 is the combination of the rotation speed of the scraping rotating part 13 around the drive shaft 12 and the rotation speed of the scraping rotating part 13 around the drive shaft 12), thereby ensuring the treatment efficiency of the surface of the first separation membrane plate 14, ensuring the permeability of the first separation membrane plate 14, and ensuring the treatment efficiency of whey wastewater.

[0058] After being processed by the pressure scraper 13, the impurities on the first separation membrane plate 14 will move with the pressure scraper 13 on the surface of the first separation membrane plate 14. The activator 17 extends, causing the sealing plate 15 to detach from the first separation membrane plate 14. The impurities will fall from the empty space on the first separation membrane plate 14 into the receiving box 16, thus completing the processing of the impurities on the surface of the first separation membrane plate 14.

[0059] When the scraper 13 cleans the first separation membrane plate 14, the scraper 22 will first contact the first separation membrane plate 14. During the process of the scraper 22 moving to the lowest point, the scraper 22 will compress the first elastic element 25, increasing the pressure between the scraper 22 and the first separation membrane plate 14 to ensure the cleaning effect. During this process, the scraper 22 will drive the drive pressure rod 29 to move, which in turn drives the follower frame 27 and the drive block 28 to move, causing the connecting rod 30 to deflect and drive the push rod 31 to slide, causing the limiting plate 32 to rotate. The limiting plate 32 releases the restriction on the scraper 22, allowing the scraper 22 to rotate around the sliding shaft 24 to reduce the scraper's speed. The pressure between scraper 22 and the first separation membrane plate 14 ensures the lifespan of scraper 22. When scraper 22 is separated from the first separation membrane plate 14, under the action of torsion spring 26, scraper 22 and mounting plate 21 are on the same plane, and under the action of first elastic element 25, scraper 22 returns to its original position, waiting for the next contact with the first separation membrane plate 14. By changing the position of scraper 22, the pressure between scraper 22 and the first separation membrane plate 14 can be ensured, thus ensuring the cleaning effect of the first separation membrane plate 14. At the same time, the maximum pressure between scraper 22 and the first separation membrane plate 14 can be limited, thus ensuring the lifespan of scraper 22 and first separation membrane plate 14.

[0060] Example 3

[0061] Please refer to Figures 5-6 Based on Embodiment 1, the second separation component 3 includes a second separation housing 37, on which a first outlet 42, a second outlet 43, and an inlet 44 are provided. The inlet 44 is connected to the first separation component 2, the first outlet 42 is connected to the second separation port 6, and the second outlet 43 is connected to the collection bin 4.

[0062] A diversion sleeve 35 is inserted into the second separation housing 37. A second separation membrane plate 36 is provided inside the diversion sleeve 35. A linkage shaft 38 is rotatably connected inside the second separation membrane plate 36. A spiral strip 39 is fixedly connected to the linkage shaft 38.

[0063] The upper end of the linkage shaft 38 passes through the diversion sleeve 35 and the second separation membrane plate 36. The upper end of the linkage shaft 38 is fixedly connected to the first guide plate 33. A second elastic element 34 is provided between the first guide plate 33 and the diversion sleeve 35.

[0064] The lower end of the linkage shaft 38 is fixedly connected to the second guide plate 40;

[0065] The lower end of the diversion sleeve 35 is connected to the first outlet 42, and a sealing valve 41 is provided between the diversion sleeve 35 and the first outlet 42;

[0066] The lower end of the second separation membrane plate 36 is connected to the second outlet 43, and the second outlet 43 is located inside the first outlet 42.

[0067] The first guide plate 33 is provided with a guide strip 45, which is arc-shaped.

[0068] The working principle and beneficial effects of the above scheme are as follows:

[0069] The liquid treated by the first separation component 2 enters the second separation component 3. The liquid flowing through the inlet 44 passes through the first guide plate 33 and enters between the diversion sleeve 35 and the second separation shell 37. After being diverted by the diversion sleeve 35, it enters the second separation membrane plate 36 to complete the second wastewater treatment and is discharged through the second outlet 43. Meanwhile, the impurities on the outside of the second separation membrane plate 36 accumulate and are discharged from the first outlet 42. Due to the impact of the liquid on the first guide plate 33, which is equipped with arc-shaped guide strips 45, the first guide plate 33 will rotate. This will drive the linkage shaft 38 to drive the spiral strip 39 to rotate. The spiral strip 39 continuously scrapes the second separation membrane plate 36 to ensure the throughput efficiency of the second separation membrane plate 36.

[0070] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A liquid whey membrane separation and concentration device, characterized in that, The device includes a housing, within which a first separation component and a second separation component are arranged in series. The second separation component is connected to a collection bin, which is located inside the housing. The first separation component has a first separation port, and the second separation component has a second separation port. The housing has a feed inlet, which is connected to the first separation component. The first separation component includes a first separation housing, on which a first separation inlet is provided, and the first separation inlet is connected to the inlet. A first separation membrane plate is provided inside the first separation housing. The first separation membrane plate is located below the first separation inlet. A cavity is provided below the first separation membrane plate, and the cavity below the first separation membrane plate is connected to the second separation component. A driving component is provided on the first separation housing. A driving shaft is fixedly connected to the output end of the driving component. The driving shaft passes through the first separation housing and is located inside the first separation housing. The driving shaft is rotatably connected to the center of the first separation membrane plate. A toothed disc is provided on the outer periphery of the driving shaft. The toothed disc is fixedly connected to the first separation membrane plate. A follower cover is fixedly connected to the lower end of the drive shaft, and the follower cover is rotatably connected to the first separation membrane plate; A follower shaft is rotatably connected to the follower cover. A gear is provided at one end of the follower shaft inside the follower cover, and the end of the follower shaft inside the follower cover meshes with a gear plate. A pressure scraper is connected to the end of the follower shaft outside the follower cover, and the pressure scraper contacts the first separation membrane plate. The pressure scraper is equipped with several scraper assemblies, which are evenly arranged around the follower rotating shaft. The scraper assembly includes a mounting plate, which is fixedly connected to the drive shaft. The mounting plate has extension bars at both ends, and a sliding shaft is rotatably connected to the extension bars. A torsion spring is provided between the sliding shaft and the extension bars, and the two ends of the torsion spring are fixedly connected to the sliding shaft and the extension bars, respectively. A scraper is slidably connected to the rotating shaft; A first elastic element is provided between the scraper and the mounting plate, and the two ends of the first elastic element are fixedly connected to the scraper and the mounting plate, respectively. A drive pressure rod is rotatably connected to the scraper, the drive pressure rod is slidably connected to the mounting plate, a drive block is fixedly connected to the drive pressure rod, the drive block is slidably connected to the mounting plate, a follower frame is fixedly connected to the drive block, the follower frame is slidably connected to the mounting plate, and a connecting rod is rotatably connected to one end of each side of the follower frame, and a push rod is rotatably connected to the other end of the connecting rod, and the push rod is slidably connected to the mounting plate. The push rod is equipped with a rack; A limit plate is rotatably connected to the mounting plate, and a gear that meshes with the rack on the push rod is fixedly connected to the limit plate.

2. The liquid whey membrane separation and concentration apparatus according to claim 1, characterized in that, A gap is provided on the first separation membrane plate, and a first separation port is provided on the gap of the first separation membrane plate. The first separation port includes a sealing plate and a receiving box. The sealing plate is inserted into the gap on the first separation membrane plate, and a receiving box is provided below the sealing plate. The sealing plate and the receiving box are slidably connected to the first separation housing. An actuating element is connected to one end of the sealing plate located on the outside of the first separation housing, and the actuating element is fixedly connected to the first separation housing. The actuation device is an electric telescopic pole.

3. The liquid whey membrane separation and concentration device according to claim 1, characterized in that, The second separation component includes a second separation shell, which is provided with a first outlet, a second outlet, and an inlet. The inlet is connected to the first separation component, the first outlet is connected to the second separation port, and the second outlet is connected to the collection bin.

4. The liquid whey membrane separation and concentration apparatus according to claim 3, characterized in that, A diversion sleeve is inserted into the second separation housing. A second separation membrane plate is installed inside the diversion sleeve. A linkage shaft is rotatably connected inside the second separation membrane plate. A spiral strip is fixedly connected to the linkage shaft. The upper end of the linkage shaft passes through the diversion sleeve and the second separation membrane plate. The upper end of the linkage shaft is fixedly connected to the first guide plate, and a second elastic element is provided between the first guide plate and the diversion sleeve. A second guide plate is fixedly connected to the lower end of the linkage shaft; The lower end of the diversion sleeve is connected to the first outlet, and a sealing valve is provided between the diversion sleeve and the first outlet; The lower end of the second separation membrane plate is connected to the second outlet, which is located inside the first outlet.

5. A liquid whey membrane separation and concentration apparatus according to claim 4, characterized in that, The first guide plate is equipped with guide strips, which are arc-shaped.

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