Filtering equipment for preparing whey protein liquid

By using a stirring tank and a stirring wire mesh in the whey protein solution preparation process, the problem of ultrafiltration membrane clogging caused by the poor flowability of whey protein solution was solved, achieving a more efficient filtration effect.

CN223586925UActive Publication Date: 2025-11-25ANHUI QINGDING TECH CO LTD
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Patent Information

Application Number
CN202520191942.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2025-11-25
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

In the existing filtration equipment, whey protein has poor fluidity during the preparation of whey protein solution, which easily leads to clogging of the ultrafiltration membrane and affects filtration efficiency and effect.

Method used

A filtration device comprising a mixing tank and a stirring wire mesh was designed. By inverting the mixing tank and rotating the stirring wire mesh, the whey concentrate is ensured to be fully mixed, increasing its fluidity and preventing clogging.

Benefits of technology

It improves the filtration efficiency and effectiveness of whey protein solution, avoids clogging of ultrafiltration membranes, and enhances the operational stability of ultrafiltration equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses filtering equipment for preparing whey protein liquid, belongs to the technical field of filtering, and mainly solves the problems that in the prior art, when filtering equipment is used for filtering, whey is not stirred and mixed, so that the fluidity of whey protein is poor, the whey protein cannot pass through an ultrafiltration membrane conveniently, blockage is caused, resistance is generated, and the filtering efficiency is high. The filtering equipment comprises a mounting bottom plate, two symmetrical supporting plates are fixedly connected to the top of the mounting bottom plate, transmission shafts are rotatably connected to the two supporting plates through bearings, a stirring barrel is fixed between the two transmission shafts, a stirring shaft is rotatably connected to the interior of the stirring barrel through a bearing, and the stirring shaft is rotatably connected to the top of the mounting bottom plate through a bearing. The surface of the stirring shaft is sleeved with two stirring steel wire meshes, the stirring steel wire meshes are located in the stirring barrel, the surface of the stirring shaft is fixedly connected with two connecting rods, the ends, away from each other, of the two connecting rods are fixedly connected with scraping plates, the bottom of the stirring barrel communicates with a liquid discharging pipe, and a control valve is installed on the surface of the liquid discharging pipe.
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Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and more specifically, to a filtration device for preparing whey protein solution. Background Technology

[0002] The main functions of whey protein liquid include promoting muscle growth, enhancing immunity, aiding in fat loss, improving metabolism, and promoting wound healing. For infants, the elderly, athletes, and patients before and after surgery, whey protein also helps the body recover quickly. In the process of preparing whey protein liquid, the filter usually used is an ultrafiltration membrane separation device. Ultrafiltration membrane separation technology can effectively remove suspended particles, large molecular impurities, and colloids from whey, while allowing water and small molecules to pass through, thereby significantly improving the purity and quality of whey protein.

[0003] However, existing filtration equipment comes in various forms. For example, utility model patent CN210097128U relates to a primary filtration and separation system for whey liquor. This utility model includes a PLC control cabinet, a feed booster pump, and two sets of filters. The feed booster pump inlet is connected to the whey liquor pipe. The two sets of filters are connected in parallel after the feed booster pump outlet. Each set of filters consists of an automatic feed valve, a primary filter, a secondary filter, a tertiary filter, and an automatic discharge valve connected in sequence. The automatic discharge valves of both sets of filters are connected to the discharge pipe, and the slag discharge pipe is connected to the discharge pipe, which has an automatic slag discharge valve. The inner liner of the primary filter is 40 mesh, the secondary filter is 80 mesh, and the tertiary filter is 120 mesh. Each set of filters has a pressure sensor probe at the top. Each pressure sensor probe, feed booster pump, feed automatic valve, discharge automatic valve, and slag discharge valve are all connected to the PLC control cabinet. This utility model can ensure continuous filtration of whey liquor and will not stop operation due to filter problems.

[0004] Although this filter can continuously filter whey without stopping due to problems, the whey is not stirred and mixed during filtration, resulting in poor flowability of whey protein. This makes it difficult for whey protein to pass through the ultrafiltration membrane, causing blockage and resistance, which hinders the improvement of ultrafiltration efficiency and effect. To avoid this phenomenon, it is necessary to design a filtration device for preparing whey protein solution. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To achieve the above objectives, this utility model provides a filtration device for preparing whey protein solution, which is achieved by the following specific technical means:

[0007] A filtration device for preparing whey protein solution includes a mounting base plate. Two symmetrical support plates are fixedly connected to the top of the mounting base plate. A drive shaft is rotatably connected to the two support plates via bearings. A stirring tank is fixed between the two drive shafts and can rotate between the two support plates. A stirring shaft is rotatably connected to the stirring tank via bearings. Two stirring wire meshes are sleeved on the surface of the stirring shaft and are located in the stirring tank. Two connecting rods are fixedly connected to the surface of the stirring shaft. Scrapers are fixedly connected to the ends of the two connecting rods that are far apart from each other, and the scrapers can fit tightly against the inner wall of the stirring tank. A drain pipe is connected to the bottom of the stirring tank, and a control valve is installed on the surface of the drain pipe.

[0008] Preferably, a fixed seat is provided on one side of the support plate, a rotary motor is mounted on the fixed seat, a first pulley is rotatably connected to the output end of the rotary motor, a second pulley is coaxially provided on the edge surface of the drive shaft, and the first pulley and the second pulley are connected by a drive belt.

[0009] Preferably, the top of the mixing tank is detachably equipped with a housing, and a servo motor is installed inside the housing. The output end of the servo motor is fixedly connected to one end of the mixing shaft. Two sets of symmetrical reinforcing rods are fixedly connected to the outer surface of the mixing tank, and one end of the reinforcing rods is fixedly connected to the drive shaft.

[0010] Preferably, a fixing frame is provided on the top of the mounting base plate, and the fixing frame is located on one side of the support plate. Multiple ultrafiltration membrane housings are installed on the fixing frame by fasteners, and a sealing bottom cover is installed at the bottom of the ultrafiltration membrane housing by a connecting flange.

[0011] Preferably, a liquid tank is provided on the top of the mounting base plate, and the liquid tank is located between two support plates. A water pump is installed on the mounting base plate and fixed to one side of the liquid tank. The output end of the water pump is connected to a raw liquid pipe, and the raw liquid pipe is connected to the sealed lower cover through a connecting pipe.

[0012] Preferably, a sealing cover is installed on the top of the ultrafiltration membrane housing via a connecting flange, a filtrate pipe is provided above the fixing frame, and the filtrate pipe is connected to the sealing cover via a connecting pipe.

[0013] Preferably, a first sealing seat and a second sealing seat are fixed inside the ultrafiltration membrane housing, with the first sealing seat located below the second sealing seat. A liquid guide tube is provided through the first sealing seat, and one end of the liquid guide tube is fixedly connected to the second sealing seat. A plurality of ultrafiltration membrane fibers are provided inside the ultrafiltration membrane housing, with the ultrafiltration membrane fibers located outside the liquid guide tube. The plurality of ultrafiltration membrane fibers pass through the second sealing seat, and the outer surface of the ultrafiltration membrane housing is connected to two waste liquid ports.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] Before using the filtration equipment for ultrafiltration, the whey stock solution is introduced into the mixing tank. The rotating drive shaft drives the mixing tank to continuously rotate, causing the whey stock solution inside to churn back and forth. At the same time, the rotating stirring wire mesh continuously stirs the churning whey stock solution. This thorough and uniform mixing of the whey stock solution before filtration increases the fluidity of the whey protein, which is beneficial for the whey protein to pass through the ultrafiltration membrane, preventing clogging or resistance, and thus improving the efficiency and effectiveness of ultrafiltration. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a perspective structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the mixing tank;

[0020] Figure 4 A schematic diagram of the liquid tank, water pump, and raw liquid pipeline;

[0021] Figure 5 A schematic diagram of a structure in which multiple ultrafiltration membrane housings are mounted on a mounting frame;

[0022] Figure 6 This is a schematic diagram of the structure inside the membrane shell.

[0023] In the diagram: 1. Mounting base plate; 2. Support plate; 3. Drive shaft; 4. Mixing tank; 5. Mixing shaft; 6. Mixing wire mesh; 7. Connecting rod; 8. Scraper; 9. Housing; 10. Servo motor; 11. Fixed seat; 12. Rotary motor; 13. Drive belt; 14. Reinforcing rod; 15. Drain pipe; 16. Liquid collection tank; 17. Fixing frame; 18. Ultrafiltration membrane housing; 19. Water pump; 20. Raw material pipe; 21. Sealing lower cover; 22. Connecting pipe; 23. Sealing upper cover; 24. Filtration pipe; 25. First sealing seat; 26. Second sealing seat; 27. Liquid guide pipe; 28. Ultrafiltration membrane fiber; 29. ​​Waste liquid outlet; 30. Connecting flange. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0027] like Figure 1 , Figure 2 as well as Figure 3 The diagram shows the structure of the filtration device for preparing whey protein solution in this embodiment. The filtration device includes a mounting base plate 1. Two symmetrical support plates 2 are fixedly connected to the top of the mounting base plate 1. A drive shaft 3 is rotatably connected to the two support plates 2 via bearings. A stirring tank 4 is fixed between the two drive shafts 3 and can rotate between the two support plates 2. A stirring shaft 5 is rotatably connected inside the stirring tank 4 via bearings. Two stirring wire meshes 6 are sleeved on the surface of the stirring shaft 5 and are located inside the stirring tank 4. Two connecting rods 7 are fixedly connected to the surface of the stirring shaft 5. Scrapers 8 are fixedly connected to the ends of the two connecting rods 7 that are far apart from each other, and the scrapers 8 can fit tightly against the inner wall of the stirring tank 4. A drain pipe 15 is connected to the bottom of the stirring tank 4. The surface is equipped with a control valve. Before using the filtration equipment for ultrafiltration, the whey stock solution is introduced into the interior of the mixing tank 4, and the control valve is closed. The mixing tank 4 is continuously rotated by two rotating drive shafts 3, causing the whey stock solution inside the mixing tank 4 to churn back and forth. At the same time, the rotating stirring shaft 5 drives two stirring wire meshes 6 to rotate. Therefore, the stirring wire meshes 6 continuously stir the churning whey stock solution, and the scraper 8, which rotates with the stirring shaft 5, scrapes the inner wall of the mixing tank 4, so that the liquid adhering to the inner wall is mixed into the whey stock solution. Thus, the whey stock solution is fully and evenly mixed before filtration, which can increase the fluidity of whey protein, which is conducive to the whey protein passing through the ultrafiltration membrane, without clogging or resistance, and thus improves the efficiency and effect of ultrafiltration.

[0028] It is worth noting that in this embodiment, a fixed seat 11 is provided on one side of the support plate 2, and a rotary motor 12 is mounted on the fixed seat 11. The output end of the rotary motor 12 is rotatably connected to a first pulley, and a second pulley is coaxially provided on the edge surface of the transmission shaft 3. The first pulley and the second pulley are connected by a transmission belt 13. The installed rotary motor 12 provides driving force to the first pulley, and through the transmission belt 13, it drives the second pulley to rotate together, thereby providing power to the transmission shaft 3.

[0029] like Figure 5 As shown, in this embodiment, a fixing frame 17 is provided on the top of the mounting base plate 1, and the fixing frame 17 is located on one side of the support plate 2. Multiple ultrafiltration membrane housings 18 are provided on the fixing frame 17 by means of fixing parts, and a sealing lower cover 21 is installed on the bottom of the ultrafiltration membrane housing 18 by means of a connecting flange 30.

[0030] like Figure 4 as well as Figure 5 As shown, in this embodiment, a liquid collection tank 16 is provided on the top of the mounting base plate 1, and the liquid collection tank 16 is located between two support plates 2. A water pump 19 is installed on the mounting base plate 1, and the water pump 19 is fixed to one side of the liquid collection tank 16. The output end of the water pump 19 is connected to the raw liquid pipe 20, and the raw liquid pipe 20 is connected to the sealing lower cover 21 through the connecting pipe 22. The top of the ultrafiltration membrane housing 18 is equipped with a sealing upper cover 23 through the connecting flange 30. A filtrate pipe 24 is provided above the fixing frame 17, and the filtrate pipe 24 is connected to... The whey stock solution is connected to the sealing cap 23 via the connecting pipe 22. After stirring, the whey stock solution flows out through the drain pipe 15 and into the liquid tank 16. The water pump 19 is controlled to draw the whey stock solution in the liquid tank 16 and introduce it into the interior of the sealing cap 21 through the stock solution pipe 20. The whey stock solution is then ultrafiltered through the ultrafiltration membrane shell 18 and enters the sealing cap 23. The ultrafiltered whey protein solution flows into the filtrate pipe 24 through the sealing cap 23 to facilitate the subsequent preparation of whey protein solution.

[0031] like Figure 6As shown, this is a schematic diagram of the internal structure of the ultrafiltration membrane housing 18 in this embodiment. In this embodiment, a first sealing seat 25 and a second sealing seat 26 are fixed inside the ultrafiltration membrane housing 18, with the first sealing seat 25 located below the second sealing seat 26. A liquid guide tube 27 is provided through the first sealing seat 25, and one end of the liquid guide tube 27 is fixedly connected to the second sealing seat 26. A plurality of ultrafiltration membrane fibers 28 are disposed inside the ultrafiltration membrane housing 18, and the ultrafiltration membrane fibers 28 are located outside the liquid guide tube 27. The plurality of ultrafiltration membrane fibers 28 penetrate the second sealing seat 26. The outer surface of the sealing seat 26 and the ultrafiltration membrane housing 18 is connected to two waste liquid ports 29. When the whey stock solution flows into the sealed lower cover 21, the liquid level of the whey stock solution will rise and slowly sink into the middle liquid guide tube 27. The stock solution seeps into the periphery of several ultrafiltration membrane fibers 28 through the permeation holes. The whey stock solution is ultrafiltered through the ultrafiltration membrane fibers 28 to effectively remove suspended particles, large molecular impurities and colloids in the whey stock solution. At the same time, water and whey protein are allowed to pass through and enter the ultrafiltration membrane fibers 28, and then be introduced into the sealed upper cover 23.

[0032] like Figure 3 As shown, in this embodiment, the top of the mixing tank 4 is detachably provided with a housing 9, and a servo motor 10 is installed inside the housing 9. The output end of the servo motor 10 is fixedly connected to one end of the mixing shaft 5. Two sets of symmetrical reinforcing rods 14 are fixedly connected to the outer surface of the mixing tank 4, and one end of the reinforcing rod 14 is fixedly connected to the transmission shaft 3.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filtration device for preparing whey protein solution, comprising a mounting base plate (1), two symmetrical support plates (2) fixedly connected to the top of the mounting base plate (1), and a drive shaft (3) rotatably connected to the two support plates (2) via bearings, characterized in that: A mixing tank (4) is fixed between two drive shafts (3). The mixing tank (4) can rotate between two support plates (2). A mixing shaft (5) is rotatably connected inside the mixing tank (4) through a bearing. Two mixing wire meshes (6) are fitted on the surface of the mixing shaft (5), and the mixing wire meshes (6) are located in the mixing tank (4). Two connecting rods (7) are fixedly connected to the surface of the mixing shaft (5). Scrapers (8) are fixedly connected to the ends of the two connecting rods (7) that are far apart from each other. The scrapers (8) can fit tightly against the inner wall of the mixing tank (4). A drain pipe (15) is connected to the bottom of the mixing tank (4). A control valve is installed on the surface of the drain pipe (15).

2. The filtration device for preparing whey protein solution according to claim 1, characterized in that: A fixed seat (11) is provided on one side of the support plate (2). A rotary motor (12) is installed on the fixed seat (11). The output end of the rotary motor (12) is rotatably connected to a first pulley. A second pulley is coaxially provided on the edge surface of the transmission shaft (3). The first pulley and the second pulley are connected by a transmission belt (13).

3. The filtration device for preparing whey protein solution according to claim 1, characterized in that: The top of the mixing tank (4) is detachably equipped with a housing (9), and a servo motor (10) is installed inside the housing (9). The output end of the servo motor (10) is fixedly connected to one end of the mixing shaft (5). Two sets of symmetrical reinforcing rods (14) are fixedly connected to the outer surface of the mixing tank (4), and one end of the reinforcing rod (14) is fixedly connected to the drive shaft (3).

4. The filtration device for preparing whey protein solution according to claim 1, characterized in that: A mounting bracket (17) is provided on the top of the mounting base plate (1), and the mounting bracket (17) is located on one side of the support plate (2). Multiple ultrafiltration membrane housings (18) are mounted on the mounting bracket (17) by means of fasteners. A sealing lower cover (21) is installed at the bottom of the ultrafiltration membrane housing (18) by means of a connecting flange (30).

5. The filtration device for preparing whey protein solution according to claim 1, characterized in that: A liquid tank (16) is provided on the top of the mounting base plate (1), and the liquid tank (16) is located between two support plates (2). A water pump (19) is installed on the mounting base plate (1), and the water pump (19) is fixed to one side of the liquid tank (16). The output end of the water pump (19) is connected to the raw liquid pipe (20), and the raw liquid pipe (20) is connected to the sealing lower cover (21) through the connecting pipe (22).

6. The filtration device for preparing whey protein solution according to claim 4, characterized in that: The top of the ultrafiltration membrane housing (18) is fitted with a sealing cover (23) via a connecting flange (30). A filtrate tube (24) is provided above the fixing frame (17), and the filtrate tube (24) is connected to the sealing cover (23) via a connecting pipe (22).

7. The filtration device for preparing whey protein solution according to claim 4, characterized in that: The ultrafiltration membrane housing (18) is fixed with a first sealing seat (25) and a second sealing seat (26), and the first sealing seat (25) is located below the second sealing seat (26). The first sealing seat (25) is provided with a liquid guide tube (27) through it, and one end of the liquid guide tube (27) is fixedly connected to the second sealing seat (26). The ultrafiltration membrane housing (18) is provided with a number of ultrafiltration membrane fibers (28), and the ultrafiltration membrane fibers (28) are located outside the liquid guide tube (27). The number of ultrafiltration membrane fibers (28) are passed through the second sealing seat (26). The outer surface of the ultrafiltration membrane housing (18) is connected to two waste liquid ports (29).