Separation and purification device for lactoferrin in bovine colostrum

By designing a device including a mixing box, a motor, a rotating rod and a curved collection plate, the problem of foam interference during the stirring process of lactoferrin in colostrum is solved, and efficient separation and purification of lactoferrin and improvement of product quality are achieved.

CN119633669AInactive Publication Date: 2025-03-18GUOKE XIXUAN AORUI (BEIJING) TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411937319.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-03-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the stirring of colostrum, the foam generated will interfere with the separation process, affect the subsequent centrifugation or filtration operations, resulting in inefficient separation and purification of lactoferrin.

Method used

A device including a mixing box, a motor, a rotating rod and a curved collection plate is designed to reduce mechanical damage to lactoferrin through intermittent stirring and the combination of a curved collection plate, and effectively collect and clean the foam generated during the stirring process.

Benefits of technology

The device reduces mechanical damage to lactoferrin through intermittent stirring, maintains its structure and biological activity, and effectively cleans up the foam, improving the separation and purification efficiency and product quality of lactoferrin.

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Abstract

The invention belongs to the technical field of separation of lactoferrin in bovine colostrum, and discloses a separation and purification device of lactoferrin in bovine colostrum, the separation and purification device comprises a stirring box, the top of the stirring box is provided with a mounting cover, one side of the top of the mounting cover is provided with a motor, and the output end of the motor penetrates through the mounting cover and is fixedly connected with a turntable; according to the bovine coloctrum stirring device, a motor is started to enable a rotating disc, an arc-shaped plate and guide rods to rotate anticlockwise, a first rotating rod is driven to rotate intermittently in a groove between the guide plates in a sliding mode, and when the first rotating rod rotates, a double-layer sleeve on the lower layer is driven to rotate with a stirring rod, and bovine coloctrum in a stirring box is stirred through the stirring rod; a first guide block is driven to rotate anticlockwise while a first rotating rod rotates, at the moment, the first guide block abuts against the interior of a first guide groove, a first sleeve and an arc-shaped collecting plate are driven to rotate through abutting force, and bubbles generated by stirring in the stirring box are collected through the arc-shaped collecting plate.
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Description

Technical Field

[0001] The invention belongs to the technical field of separation of lactoferrin in bovine colostrum, in particular to a device for separation and purification of lactoferrin in bovine colostrum. Background Art

[0002] The device for separating and purifying lactoferrin in bovine colostrum uses a multi-step technology, combined with stirring, centrifugation, membrane filtration, affinity chromatography and dialysis concentration, to efficiently extract and purify lactoferrin. First, the bovine colostrum is stirred to allow the lactoferrin to fully contact with the affinity chromatography material; then, large particle impurities are removed by high-speed centrifugation, and small molecule impurities are removed by membrane filtration; then, an affinity chromatography column is used to separate the lactoferrin based on its specificity and binding to the stationary phase material to elute the purified lactoferrin; finally, dialysis is used to remove small molecule substances in the solvent, and the concentration of lactoferrin is further increased by a concentration device to ensure the high purity and activity of the product. The entire process is automated and intelligently operated, which can effectively improve production efficiency and ensure the stability and quality of lactoferrin, and is widely applicable to the industrial extraction and commercial production of lactoferrin.

[0003] Some components in bovine colostrum may precipitate or coagulate during the processing process, especially protein. If not properly stirred, the precipitate may accumulate at the bottom of the container, affecting subsequent operations. However, stirring the bovine colostrum will cause foam to form, especially when processing bovine colostrum. Due to the high protein and fat content of dairy products, the foam will interfere with the separation process and may even affect subsequent centrifugation or filtration operations. Summary of the invention

[0004] In order to solve the problem raised in the above background technology that foam will be generated during the stirring of bovine colostrum, especially when processing bovine colostrum, due to the high protein and fat content of dairy products, the foam will interfere with the separation process and may even affect subsequent centrifugation or filtration operations. The present invention provides a device for separating and purifying lactoferrin in bovine colostrum.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a device for separating and purifying lactoferrin in bovine colostrum, comprising a stirring box, a mounting cover is installed on the top of the stirring box, a motor is installed on one side of the top of the mounting cover, an output end of the motor passes through the mounting cover and is fixedly connected to a turntable, and the turntable is rotatably connected to the inner cavity of the mounting cover, an arc-shaped plate is fixedly connected to the top of the turntable near the edge, a guide rod is fixedly connected to the middle of the opening position of the arc-shaped plate at the top of the turntable, a rotating rod 1 passes through and is rotatably connected to the middle of the inner cavity of the mounting cover, four guide plates are fixedly connected to the top outer wall of the rotating rod 1, and the side of the guide plate away from the rotating rod 1 is attached to the outer wall of the arc-shaped plate, a foam collecting groove is opened in the upper part of the inner cavity of the stirring box, the bottom of the rotating rod 1 passes through the mounting cover and is rotatably connected to the bottom of the inner cavity of the stirring box, a double-layer sleeve is fixedly connected to the middle of the bottom of the mounting cover, and the rotating rod 1 is rotatably connected to the inside of the double-layer sleeve, and a stirring rod is fixedly connected to the bottom of the outer wall of the double-layer sleeve.

[0006] Preferably, a sleeve 1 is slidably connected to the middle part of the outer wall of the double-layer sleeve, connecting grooves are provided on both sides of the sleeve 1, and arc grooves are provided at the bottom of the two connecting grooves, and arc collecting plates are fixedly connected to the two sides of the outer wall of the sleeve 1, and a connecting rod is slidably connected to the inside of the connecting groove, and an arc cleaning plate is fixedly connected to the bottom of the connecting rod, and the arc cleaning plate cooperates with the arc groove, and a guide groove 1 is provided in the inner cavity of the sleeve 1, and a guide block 1 is fixedly connected to the middle part of the outer wall of the rotating rod 1, and the guide block 1 slides in the guide groove 1, and connecting blocks are fixedly connected to both sides of the top of the inner cavity of the sleeve 1, and the two connecting blocks are fixedly connected to a rack plate on the side away from the sleeve 1, and the rack plate slides in the double-layer sleeve; the two rack plates are fixedly connected to a connecting ring on the side away from the connecting block.

[0007] Preferably, the upper part of the outer wall of the double-layer sleeve passes through and is rotatably connected with sleeve 2, and connecting plates are fixedly connected to the outer walls of sleeve 2 on both sides, and the inner bottoms of the two connecting plates are provided with sliding grooves, and the inner cavity of the sliding groove on one side is rotatably connected with rotating rod 2, and the outer wall of one side of the rotating rod 2 passes through sleeve 2 and is fixedly connected with a gear, and the gear and the rack plate are meshed with each other, and one end of the rotating rod 2 passes through sleeve 2 and is rotatably connected to rotating rod 1.

[0008] Preferably, a guide groove 2 is provided on the outer wall of the rotating rod 2 on one side, and a movable ring is sleeved on the outer wall of the rotating rod 2. A guide block 2 is fixedly connected to one side of the inner cavity of the movable ring, and the guide block 2 slides in the guide groove 2. Limiting plates are fixedly connected on both sides of the movable ring, and both sides of the limiting plates pass through both sides of the inner cavity of the slide groove and are slidably connected.

[0009] Preferably, a telescopic rod is fixedly connected to a side of the outer wall of the movable ring away from the sliding groove, and the telescopic rod is fixedly connected to the top of the connecting rod.

[0010] Preferably, a telescopic rod is fixedly connected to a side of the outer wall of the movable ring away from the sliding groove, and the telescopic rod is fixedly connected to the top of the connecting rod.

[0011] Preferably, a sewage outlet is penetrated and installed on one side of the outer wall of the mixing box, and the sewage outlet cooperates with the foam collecting tank.

[0012] Preferably, a feed inlet is penetrated and installed on one side of the bottom of the outer wall of the mixing box, and the material can be transported into the mixing box through the feed inlet.

[0013] Preferably, a discharge port is penetrated and installed on a side of the top of the mounting cover away from the motor, and the material in the mixing box can be discharged through the discharge port.

[0014] Preferably, the double-layer sleeve consists of two layers, the upper layer is fixedly connected to the mounting cover, and the lower layer is fixedly connected to the rotating rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention arranges the coordination of structures such as a motor, a rotating rod and a stirring rod so that the stirring rod can intermittently rotate and stir to reduce mechanical damage to lactoferrin, maintain its structure and biological activity, and clean bubbles generated by stirring inside a stirring box. The motor is turned on to rotate the turntable, the arc plate and the guide rod counterclockwise, and the rotating rod slides in the groove between the guide plates to drive the rotating rod to rotate intermittently. When the rotating rod rotates, the double-layer sleeve of the lower layer is driven to rotate with the stirring rod to stir the colostrum in the stirring box through the stirring rod. When the rotating rod rotates, the guide block is driven to rotate counterclockwise. At this time, the guide block is abutted in the guide groove, and the sleeve and the arc collecting plate are driven to rotate by the abutting force, so that bubbles generated by stirring inside the stirring box are collected by the arc collecting plate.

[0016] The invention provides the coordination of structures such as rack plate and gear, so that the foam collected on the arc collecting plate can be cleaned uniformly. When the rotating rod one rotates counterclockwise or clockwise, it drives the guide block one to rotate clockwise. At this time, the guide block one slides in the guide groove one to make the sleeve one slide upward, and the arc collecting plate is driven to move upward by the sleeve one so that the height of the arc collecting plate moving upward exceeds the foam collecting groove. When the sleeve one slides upward, it drives the connecting block, the rack plate and the connecting ring to move upward, and meshes with the gear when the rack plate moves upward to make the gear rotate, and the rotating rod two is driven by the gear to rotate, and the guide block two slides in the guide groove two by the rotation of the rotating rod two, and the moving ring and the limit plate slide in the sliding groove at the same time, and the moving ring and the limit plate slide in the sliding groove when the moving ring slides. The telescopic rod and the connecting rod are driven when the moving ring slides, and the arc cleaning plate slides, and the arc cleaning plate is attached to the surface of the arc collecting plate. The foam collected on the surface of the arc collecting plate is pushed into the foam collecting groove by the movement of the arc cleaning plate, and collected by the foam collecting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 A sectional view of one side of the mounting cover of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 A side sectional view of a mixing box of the present invention; Figure 5 A schematic diagram of a stirring rod according to the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle; Figure 7 It is a schematic diagram of the arc-shaped collecting plate of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle; Fig. 9 It is an enlarged view of D in 7 of the present invention; Fig.10 This is a second schematic diagram of the guide block of the present invention.

[0018] In the figure: 1, mixing box; 2, mounting cover; 3, motor; 4, turntable; 5, arc plate; 6, guide rod; 7, rotating rod 1; 8, guide plate; 9, double-layer sleeve; 10, stirring rod; 11, sleeve 1; 12, connecting groove; 13, arc groove; 14, arc collecting plate; 15, arc cleaning plate; 16, connecting rod; 17, guide groove 1; 18, guide block 1; 19, connecting block; 20, rack plate; 21, connecting ring; 22, sleeve 2; 23, connecting plate; 24, slide; 25, rotating rod 2; 26, gear; 27, guide groove 2; 28, moving ring; 29, guide block 2; 30, limit plate; 31, telescopic rod; 32, scraper; 33, foam collecting trough; 34, sewage outlet; 35, feed port; 36, discharge port. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figures 1 to 10 As shown, the present invention provides a device for separating and purifying lactoferrin in bovine colostrum, comprising a stirring box 1, a mounting cover 2 is installed on the top of the stirring box 1, a motor 3 is installed on one side of the top of the mounting cover 2, an output end of the motor 3 penetrates the mounting cover 2 and is fixedly connected with a turntable 4, and the turntable 4 is rotatably connected to the inner cavity of the mounting cover 2, a curved plate 5 is fixedly connected to the top of the turntable 4 near the edge, a guide rod 6 is fixedly connected to the middle of the opening of the curved plate 5 at the top of the turntable 4, and the middle of the inner cavity of the mounting cover 2 penetrates and is rotatably connected to the turntable 4. The rotating rod 7 is rotatably connected to the top outer wall of the rotating rod 7, and four guide plates 8 are fixedly connected, and the side of the guide plate 8 away from the rotating rod 7 is attached to the outer wall of the arc plate 5. A foam collecting groove 33 is opened at the upper part of the inner cavity of the mixing box 1. The bottom of the rotating rod 7 passes through the mounting cover 2 and is rotatably connected to the bottom of the inner cavity of the mixing box 1. A double-layer sleeve 9 is fixedly connected to the middle part of the bottom of the mounting cover 2, and the rotating rod 7 is rotatably connected to the inside of the double-layer sleeve 9. The outer wall bottom of the double-layer sleeve 9 is fixedly connected to a stirring rod 10; A sleeve 11 is slidably connected to the middle of the outer wall of the double-layer sleeve 9, and connecting grooves 12 are provided on both sides of the sleeve 11. Arc grooves 13 are provided at the bottom of the two connecting grooves 12. Arc collecting plates 14 are fixedly connected to the two sides of the outer wall of the sleeve 11, and a connecting rod 16 is slidably connected inside the connecting groove 12. An arc cleaning plate 15 is fixedly connected to the bottom of the connecting rod 16, and the arc cleaning plate 15 cooperates with the arc groove 13. A guide groove 17 is provided in the inner cavity of the sleeve 11, and a guide block 18 is fixedly connected to the middle of the outer wall of the rotating rod 7, and the guide block 18 slides in the guide groove 17. Connecting blocks 19 are fixedly connected to both sides of the top of the inner cavity of the sleeve 11, and a rack plate 20 is fixedly connected to the side of the two connecting blocks 19 away from the sleeve 11, and the rack plate 20 slides in the double-layer sleeve 9; a connecting ring 21 is fixedly connected to the side of the two rack plates 20 away from the connecting block 19; The arc-shaped cleaning plate 15 is attached to the outer wall of the arc-shaped collecting plate 14 and the double-layer sleeve 9 to form an upper and lower layer, the upper layer is fixedly connected to the mounting cover 2, and the lower layer is fixedly connected to the rotating rod 7.

[0021] The above scheme is adopted: during operation, the material is transported into the mixing box 1 through the feed port 35, and then the motor 3 is turned on to rotate the turntable 4, the arc plate 5 and the guide rod 6 counterclockwise, and the rotating rod 7 is driven to rotate intermittently by sliding in the groove between the guide plates 8. When the rotating rod 7 rotates, the double-layer sleeve 9 of the lower layer is driven to rotate with the stirring rod 10, and the colostrum in the mixing box 1 is stirred by the stirring rod 10. When the rotating rod 7 rotates, the guide block 18 is driven to rotate counterclockwise. At this time, the guide block 18 is in contact with the guide groove 17, and the sleeve 11 and the arc collecting plate 14 are driven to rotate by the force of the contact, and the bubbles generated by the stirring inside the mixing box 1 are collected by the arc collecting plate 14. When the rotating rod 7 rotates, the connecting plate 23, the telescopic rod 31 and the scraper 32 are driven to rotate through the rotating rod 25, and the rotation is counterclockwise at this time; The rotating rod 7 is set to rotate intermittently. Compared with continuous stirring, intermittent rotation stirring can reduce the mechanical damage to lactoferrin and maintain its structure and biological activity.

[0022] like Figures 1 to 10 As shown, the upper part of the outer wall of the double-layer sleeve 9 penetrates and is rotatably connected with a sleeve 22, and connecting plates 23 are fixedly connected to the outer walls of the sleeve 22 on both sides, and the inner bottoms of the two connecting plates 23 are provided with slide grooves 24, and the inner cavity of the slide groove 24 on one side is rotatably connected with a rotating rod 25, and the outer wall of one side of the rotating rod 25 penetrates the sleeve 22 and is fixedly connected with a gear 26, and the gear 26 and the rack plate 20 are meshed with each other, and one end of the rotating rod 25 penetrates the sleeve 22 and is rotatably connected to the rotating rod 1 7; A guide groove 27 is formed on the outer wall of the second rotating rod 25 on one side, and a moving ring 28 is sleeved on the outer wall of the second rotating rod 25. A guide block 29 is fixedly connected to one side of the inner cavity of the moving ring 28, and the guide block 29 slides in the guide groove 27. The two sides of the moving ring 28 are fixedly connected to the limiting plates 30, and the two sides of the limiting plates 30 pass through the two sides of the inner cavity of the slide groove 24 and are slidably connected. A telescopic rod 31 is fixedly connected to the side of the outer wall of the movable ring 28 away from the slide groove 24, and the telescopic rod 31 is fixedly connected to the top of the connecting rod 16; A scraper 32 is fixedly connected to the bottom of one side of the two connecting plates 23 that is relatively far away, and the scraper 32 slides in the foam collecting groove 33; A sewage outlet 34 is installed through one side of the outer wall of the mixing box 1, and the sewage outlet 34 is matched with the foam collecting tank 33; A feed inlet 35 is installed on one side of the bottom of the outer wall of the mixing box 1, and the material can be transported into the mixing box 1 through the feed inlet 35; A discharge port 36 is penetrated and installed on a side of the top of the installation cover 2 away from the motor 3 , and the material in the mixing box 1 can be discharged through the discharge port 36 .

[0023] The above scheme is adopted: when the rotating rod 7 rotates counterclockwise and clockwise, the guide block 18 is driven to rotate clockwise. At this time, the guide block 18 slides in the guide groove 17 to make the sleeve 11 slide upward, and the arc collecting plate 14 is driven to move upward through the sleeve 11 so that the height of the arc collecting plate 14 moving upward exceeds the foam collecting groove 33. When the sleeve 11 slides upward, the connecting block 19, the rack plate 20 and the connecting ring 21 are driven to move upward. When the rack plate 20 moves upward, it meshes with the gear 26 so that the gear 26 rotates, and the gear 26 drives the second rotating rod 25 to rotate. The second guide block 29 slides in the second guide groove 27 through the rotation of the second rotating rod 25. At the same time, the moving ring 28 and the limit plate 30 slide in the slide groove 24. When the moving ring 28 slides, it drives the telescopic rod 31 and the connecting rod 16, and the arc cleaning plate 15 slides. The arc cleaning plate 15 is attached to the surface of the arc collecting plate 14. The foam collected on the surface of the arc collecting plate 14 is pushed into the foam collecting groove 33 through the movement of the arc cleaning plate 15. At the same time, the surface of the arc-shaped collecting plate 14 can be cleaned by the arc-shaped cleaning plate 15. When the collected foam is pushed into the foam collecting groove 33, the sleeve 22, the connecting plate 23 and the scraper 32 are in a rotating state. The rotation of the scraper 32 pushes the foam in the foam collecting groove 33 to the position where the sewage outlet 34 is connected to the foam collecting groove 33, and the collected foam is discharged through the sewage outlet 34. When the scraper 32 rotates, the inner cavity of the foam collecting groove 33 can be cleaned to avoid some foam residue.

[0024] The working principle and use process of the present invention: During operation, the material is conveyed into the mixing box 1 through the feed port 35, and then the motor 3 is turned on to rotate the turntable 4, the arc plate 5 and the guide rod 6 counterclockwise, and the rotating rod 7 is driven to rotate intermittently by sliding in the groove between the guide plates 8. When the rotating rod 7 rotates, the double-layer sleeve 9 of the lower layer is driven to rotate with the stirring rod 10, and the colostrum in the mixing box 1 is stirred by the stirring rod 10. When the rotating rod 7 rotates, the guide block 18 is driven to rotate counterclockwise. At this time, the guide block 18 is in contact with the guide groove 17, and the sleeve 11 and the arc collecting plate 14 are driven to rotate by the force of the contact, and the bubbles generated by the stirring inside the mixing box 1 are collected by the arc collecting plate 14. When the rotating rod 7 rotates, the connecting plate 23, the telescopic rod 31 and the scraper 32 are driven to rotate through the rotating rod 25, and the rotation is counterclockwise at this time; When the colostrum in the mixing box 1 is stirred and mixed, the motor 3 is started again to rotate the turntable 4, the arc plate 5 and the guide rod 6 clockwise, and at the same time drive the rotating rod 7 to rotate clockwise. When the rotating rod 7 rotates counterclockwise and clockwise, it drives the guide block 18 to rotate clockwise. At this time, the guide block 18 slides in the guide groove 17 to make the sleeve 11 slide upward, and the arc collecting plate 14 is driven to move upward through the sleeve 11 so that the height of the arc collecting plate 14 moving upward exceeds the foam collecting groove 33. When the sleeve 11 slides upward, it drives the connecting block 19, the rack plate 20 and the connecting ring 21 to move upward. When the rack plate 20 moves upward, it meshes with the gear 26 to rotate the gear 26, and drives the rotating rod 25 to rotate through the gear 26. The rotation of the rotating rod 25 drives the guide The block 29 slides in the guide groove 27, and the moving ring 28 and the limit plate 30 slide in the slide groove 24. When the moving ring 28 slides, it drives the telescopic rod 31 and the connecting rod 16, and the arc cleaning plate 15 slides. The arc cleaning plate 15 is attached to the surface of the arc collecting plate 14. The foam collected on the surface of the arc collecting plate 14 is pushed into the foam collecting groove 33 through the movement of the arc cleaning plate 15, and the surface of the arc collecting plate 14 is cleaned at the same time. When the collected foam is pushed into the foam collecting groove 33, the sleeve 22, the connecting plate 23 and the scraper 32 are in a rotating state at this time. The rotation of the scraper 32 pushes the foam in the foam collecting groove 33 to the position where the sewage outlet 34 is connected to the foam collecting groove 33, and the collected foam is discharged through the sewage outlet 34.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for separating and purifying lactoferrin in bovine colostrum, comprising a stirring box (1), characterized in that: The top of the mixing box (1) is provided with a mounting cover (2), a motor (3) is mounted on one side of the top of the mounting cover (2), an output end of the motor (3) passes through the mounting cover (2) and is fixedly connected to a turntable (4), and the turntable (4) is rotatably connected to the inner cavity of the mounting cover (2), a curved plate (5) is fixedly connected to the top of the turntable (4) near the edge, a guide rod (6) is fixedly connected to the top of the turntable (4) located in the middle of the opening of the curved plate (5), a rotating rod (7) passes through the middle of the inner cavity of the mounting cover (2) and is rotatably connected, and the rotating rod Four guide plates (8) are fixedly connected to the top outer wall of the rotating rod (7), and the side of the guide plate (8) away from the rotating rod (7) is attached to the outer wall of the arc plate (5); a foam collecting groove (33) is opened at the upper part of the inner cavity of the mixing box (1); the bottom of the rotating rod (7) passes through the mounting cover (2) and is rotatably connected to the bottom of the inner cavity of the mixing box (1); a double-layer sleeve (9) is fixedly connected to the middle part of the bottom of the mounting cover (2), and the rotating rod (7) is rotatably connected to the inside of the double-layer sleeve (9); and a stirring rod (10) is fixedly connected to the bottom of the outer wall of the double-layer sleeve (9).

2. The device for separating and purifying lactoferrin in bovine colostrum according to claim 1, characterized in that: The middle part of the outer wall of the double-layer sleeve (9) is slidably connected to a sleeve one (11), and connecting grooves (12) are provided on both sides of the sleeve one (11), and arc grooves (13) are provided at the bottom of the two connecting grooves (12). Arc collecting plates (14) are fixedly connected to both sides of the outer wall of the sleeve one (11), and a connecting rod (16) is slidably connected inside the connecting groove (12), and an arc cleaning plate (15) is fixedly connected to the bottom of the connecting rod (16), and the arc cleaning plate (15) cooperates with the arc groove (13). The sleeve one (11) The inner cavity of the sleeve (11) is provided with a guide groove (17); a guide block (18) is fixedly connected to the middle of the outer wall of the rotating rod (7), and the guide block (18) slides in the guide groove (17); connecting blocks (19) are fixedly connected to both sides of the top of the inner cavity of the sleeve (11); the two connecting blocks (19) are fixedly connected to a rack plate (20) on one side away from the sleeve (11), and the rack plate (20) slides in the double-layer sleeve (9); the two rack plates (20) are fixedly connected to a connecting ring (21) on one side away from the connecting block (19).

3. The device for separating and purifying lactoferrin in bovine colostrum according to claim 1, characterized in that: The upper part of the outer wall of the double-layer sleeve (9) penetrates and is rotatably connected to the second sleeve (22), and connecting plates (23) are fixedly connected to the outer walls of the second sleeve (22) on both sides. The inner bottoms of the two connecting plates (23) are provided with sliding grooves (24), and the inner cavity of the sliding groove (24) on one side is rotatably connected to the second rotating rod (25), and the outer wall of one side of the second rotating rod (25) penetrates the second sleeve (22) and is fixedly connected to a gear (26), and the gear (26) and the rack plate (20) are meshed with each other. One end of the second rotating rod (25) penetrates the second sleeve (22) and is rotatably connected to the first rotating rod (7).

4. The device for separating and purifying lactoferrin in bovine colostrum according to claim 3, characterized in that: A second guide groove (27) is formed on the outer wall of the second rotating rod (25) on one side, and a movable ring (28) is sleeved on the outer wall of the second rotating rod (25). A second guide block (29) is fixedly connected to one side of the inner cavity of the movable ring (28), and the second guide block (29) slides in the second guide groove (27). The two sides of the movable ring (28) are fixedly connected to limit plates (30), and the two sides of the limit plates (30) penetrate through the two sides of the inner cavity of the slide groove (24) and are slidably connected.

5. The device for separating and purifying lactoferrin in bovine colostrum according to claim 4, characterized in that: A telescopic rod (31) is fixedly connected to a side of the outer wall of the movable ring (28) away from the slide groove (24), and the telescopic rod (31) is fixedly connected to the top of the connecting rod (16).

6. The device for separating and purifying lactoferrin in bovine colostrum according to claim 3, characterized in that: A scraper (32) is fixedly connected to the bottom of one side of the two connecting plates (23) that is relatively far away, and the scraper (32) slides in the foam collecting groove (33).

7. The device for separating and purifying lactoferrin in bovine colostrum according to claim 1, characterized in that: A sewage outlet (34) is penetrated and installed on one side of the outer wall of the mixing box (1), and the sewage outlet (34) cooperates with the foam collection tank (33).

8. The device for separating and purifying lactoferrin in bovine colostrum according to claim 1, characterized in that: A feed inlet (35) is installed through one side of the bottom of the outer wall of the mixing box (1), and materials can be transported into the mixing box (1) through the feed inlet (35).

9. The device for separating and purifying lactoferrin in bovine colostrum according to claim 1, characterized in that: A discharge port (36) is penetrated and installed on a side of the top of the installation cover (2) away from the motor (3), and the material in the mixing box (1) can be discharged through the discharge port (36).

10. The device for separating and purifying lactoferrin in bovine colostrum according to claim 1, characterized in that: The double-layer sleeve (9) comprises two layers, the upper layer being fixedly connected to the mounting cover (2) and the lower layer being fixedly connected to the rotating rod (7).