A polysaccharide dialysis device
By introducing a water flow mechanism into the polysaccharide dialysis device, the problem of reduced dialysis speed in existing technologies has been solved, achieving highly efficient polysaccharide purification.
Patent Information
- Application Number
- CN202521984858.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-15
AI Technical Summary
In existing polysaccharide dialysis methods, as small molecule impurities diffuse, the concentration gradient decreases, leading to a slower dialysis rate. Furthermore, the water is easily saturated, forming a diffusion boundary layer, which reduces dialysis efficiency.
A polysaccharide dialysis device is designed, in which a dialysis bag is placed in a dialysis box, and water is circulated by a driving mechanism to maintain the concentration difference inside and outside the dialysis bag. The water flow carries away small molecule impurities and avoids the formation of a diffusion boundary layer.
It maintained good dialysis speed and efficiency, avoided the formation of diffusion boundary layer, and improved the efficiency of polysaccharide purification.
Smart Images
Figure CN224672478U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polysaccharide extraction and purification technology, and in particular to a polysaccharide dialysis device. Background Technology
[0002] Polysaccharides, as important biological macromolecules, are widely found in nature, including in plants, animals, and microorganisms. Currently, polysaccharide purification methods mainly include precipitation, chromatography, ultrafiltration, and dialysis. Polysaccharide dialysis is a purification method based on the selective permeability of semipermeable membranes. Its core principle is to utilize the property of semipermeable membranes that allow small molecules (such as inorganic salts, monosaccharides, and oligosaccharides) to pass through while blocking large polysaccharide molecules, thus achieving the separation of polysaccharides from small molecule impurities. Specifically, the polysaccharide solution containing impurities is placed in a dialysis bag made of a semipermeable membrane. The dialysis bag is then placed in a large amount of water. Because the concentration of small molecule impurities in the polysaccharide solution inside the dialysis bag is higher than the concentration in the external water, according to the concentration gradient principle, the small molecule impurities diffuse through the semipermeable membrane into the external water, thereby achieving polysaccharide purification.
[0003] Existing dialysis methods typically involve directly immersing a dialysis bag in static water. During dialysis, as small molecule impurities continuously pass through the semi-permeable membrane from inside the dialysis bag into the external water, the concentration difference of these impurities across the dialysis bag gradually decreases. According to the diffusion principle, concentration difference is the driving force for the diffusion of small molecule impurities; a decrease in concentration difference leads to a reduction in diffusion rate, i.e., a slower dialysis rate. Furthermore, the water surrounding the dialysis bag quickly becomes saturated with small molecule impurities, forming a boundary layer with a high concentration, further hindering the diffusion of small molecule impurities from inside the dialysis bag to the external water, further reducing the dialysis rate. Therefore, a polysaccharide dialysis device is proposed. Utility Model Content
[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose a polysaccharide dialysis device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A polysaccharide dialysis device, comprising:
[0007] The processing box has an open top and a sliding plate that is sealed inside. The processing box is equipped with a drive mechanism to control the movement of the sliding plate.
[0008] The dialysis box has an installation groove on the top of the movable plate, and the dialysis box is installed in the installation groove of the movable plate. The top of the dialysis box is provided with a movable door. Two filter screens are connected to the inner wall of the dialysis box on both sides of the movable door. A water guide pipe is connected to each end of the box wall of the dialysis box.
[0009] Preferably, the driving mechanism includes a motor, and two pairs of mounting plates are connected to the outer walls of the two sides of the processing box. Each pair of mounting plates is rotatably connected to a threaded rod. Both threaded rods are threadedly connected to a moving plate. The motor is mounted on one of the mounting plates. The output shaft of the motor is coaxially connected to the threaded rod. The ends of the two threaded rods away from the motor are coaxially connected to a sprocket. The two sprockets are fitted with a chain.
[0010] Preferably, both water pipes are equipped with regulating valves.
[0011] Preferably, the processing box, the moving plate, and the dialysis box are all made of stainless steel.
[0012] Preferably, the inlet of the water guide pipe is 50mm below the top of the treatment tank.
[0013] Compared with the prior art, the advantages of this utility model are:
[0014] This invention places the dialysis bag in the dialysis box and keeps water flowing in the dialysis box. This can carry away small molecule impurities that are dialyzed out of the dialysis box, maintain the concentration difference between the inside and outside of the dialysis bag in the dialysis box, ensure a good dialysis speed, and because the water flow does not form a diffusion boundary layer, it further maintains a good dialysis speed and improves dialysis efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a cross-sectional view of the structure of this utility model.
[0017] Figure 3 This is a cross-sectional view of the dialysis box portion of this utility model.
[0018] In the diagram: 1. Treatment box, 2. Moving plate, 3. Mounting slot, 4. Dialysis box, 5. Mounting plate, 6. Threaded rod, 7. Motor, 8. Sprocket, 9. Chain, 10. Movable door, 11. Filter screen, 12. Water pipe, 13. Regulating valve. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figure 1-3 As shown, a polysaccharide dialysis device includes:
[0021] Processing box 1, the top of the processing box 1 is open, a movable plate 2 is slidably connected inside the processing box 1, and a drive mechanism for controlling the movement of the movable plate 2 is provided on the processing box 1;
[0022] The dialysis box 4 has an installation groove 3 on the top of the movable plate 2. The dialysis box 4 is installed in the installation groove 3 of the movable plate 2. The connection between the dialysis box 4 and the installation plate 2 is a sealed connection. The top of the dialysis box 4 is provided with a movable door 10. Two filters 11 are connected to the inner wall of the dialysis box 4 on both sides of the movable door 10. A water guide pipe 12 is connected to each of the two end walls of the dialysis box 4.
[0023] In this embodiment, two pairs of mounting plates 5 are connected to the outer walls of the two sides of the processing box 1. Each pair of mounting plates 5 is rotatably connected to a threaded rod 6. Both threaded rods 6 are threadedly connected to the moving plate 2. The motor 7 is mounted on one of the mounting plates 5. The output shaft of the motor 7 is coaxially connected to the threaded rod 6. The ends of the two threaded rods 6 away from the motor 7 are coaxially connected to a sprocket 8. The two sprockets 8 are fitted with a chain 9. The motor 7 is a low-speed motor.
[0024] In this embodiment, both water pipes 12 are equipped with regulating valves 13.
[0025] In this embodiment, the processing box 1, the moving plate 2, and the dialysis box 4 are all made of stainless steel.
[0026] The inlet of the water pipe 12 is 50mm below the top of the treatment tank 1.
[0027] Working process and its principle:
[0028] In use, first move the moving plate 2 to one end of the treatment tank 1, then add clean water into the treatment tank 1, positioning it on the side with the larger space of the moving plate 2. Open the movable door 10 and place the dialysis bag containing the polysaccharide solution into the dialysis box 4. Turn on the motor 7, which drives the two threaded rods 6 to rotate synchronously via chain drive. The moving plate 2 is moved by controlling the thread. As the moving plate 2 moves, the bottom area of the treatment tank 1 on the side with water decreases, and the water level rises to slightly below the top 4 of the dialysis box. At this time, open the regulating valves 13 on the two water guide pipes 12, and open the regulating valve 13 on the water guide pipe 12 closer to the side with water. The flow rate of water in the dialysis box 4 is greater than the flow rate at the regulating valve 3 on the other side of the water pipe 12 (i.e., the inflow rate of water into the dialysis box 4 is greater than the outflow rate). This allows water to fill the entire dialysis box 4. Then, the speed of the motor 7 is adjusted so that the water level on the clean water side does not change when the moving plate 2 moves. Water always flows in the dialysis box 4, which can carry away the small molecule impurities that are dialyzed out of the dialysis box 4. This maintains the concentration difference between the inside and outside of the dialysis bag in the dialysis box 4, ensuring a good dialysis speed. Furthermore, because the water flow does not form a diffusion boundary layer, it further maintains a good dialysis speed and improves dialysis efficiency.
[0029] When the moving plate 2 moves from one end of the treatment box 1 to the other, the water containing small molecule impurities will be located on one side of the treatment box 1. At this time, the water on the clean water side is scooped to the side containing small molecule impurities to dilute the concentration of the water containing small molecule impurities. Then, the motor 7 is controlled to reverse to control the moving plate 2 to slide back. The diluted water flows back into the dialysis box 4 to further dialyze the polysaccharide solution in the dialysis bag. In this way, water can be reused and water resources can be avoided.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A polysaccharide dialysis device, characterized in that, include: The processing box (1) has an open top and a sliding plate (2) is sealed inside the processing box (1). A drive mechanism for controlling the movement of the sliding plate (2) is provided on the processing box (1). The dialysis box (4) has an installation groove (3) on the top of the movable plate (2). The dialysis box (4) is installed in the installation groove (3) of the movable plate (2). The top of the dialysis box (4) is provided with a movable door (10). Two filters (11) are connected to the inner wall of the dialysis box (4) on both sides of the movable door (10). A water guide pipe (12) is connected to each end of the dialysis box (4).
2. The polysaccharide dialysis device according to claim 1, characterized in that, The driving mechanism includes a motor (7). Two pairs of mounting plates (5) are connected to the outer walls of the two sides of the processing box (1). Each pair of mounting plates (5) is rotatably connected to a threaded rod (6). Both threaded rods (6) are threadedly connected to the moving plate (2). The motor (7) is mounted on one of the mounting plates (5). The output shaft of the motor (7) is coaxially connected to the threaded rod (6). The ends of the two threaded rods (6) away from the motor (7) are coaxially connected to a sprocket (8). The two sprockets (8) are fitted together with a chain (9).
3. The polysaccharide dialysis device according to claim 1, characterized in that, Both of the water pipes (12) are equipped with regulating valves (13).
4. The polysaccharide dialysis device according to claim 1, characterized in that, The processing box (1), the moving plate (2), and the dialysis box (4) are all made of stainless steel.
5. The polysaccharide dialysis device according to claim 1, characterized in that, The opening of the water pipe (12) is 50mm lower than the top of the treatment tank (1).