Dialysis powder stirring and drying equipment
By using the reverse spiral design and hot oil circulation system of the dialysis powder mixing and drying equipment, the problem of dialysis powder agglomeration was solved, achieving uniform mixing and efficient drying, thus improving product quality and production efficiency.
Patent Information
- Application Number
- CN202520002012.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-02
AI Technical Summary
During the preparation of dialysis powder, the raw materials are prone to clumping due to humidity, resulting in uneven composition of the finished dialysis powder and affecting product quality.
A dialysis powder mixing and drying device is designed, which adopts a large mixing screw and a small mixing screw with opposite spiral design, combined with a hot oil circulation system and automatic control to ensure uniform mixing and efficient drying of materials.
This technology enables uniform mixing and efficient drying of dialysis powder, improving product quality, reducing the need for manual intervention, increasing production efficiency, and extending the lifespan of the heater.
Smart Images

Figure CN223623293U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical preparation, and more specifically, to a dialysis powder stirring and drying device. Background Technology
[0002] Dialysis powder, or dialysate concentrate, is the main component used in the preparation of dialysate during hemodialysis. It consists of various electrolytes, buffers, and other essential ingredients, precisely proportioned and rigorously processed to ensure safe and effective treatment for patients with renal failure. Dialysis powder is categorized into three types: A-solution B-solution, A-solution B-powder, and A-powder B-powder; and comes in several models, including high-potassium, low-potassium, and acetic acid-free.
[0003] Currently, in the preparation process of dialysis powder, the various raw materials required for powder A and powder B need to undergo precise heating, mixing and drying processes to ensure the high quality and consistency of the final product. However, during the storage of raw materials, due to the influence of humidity in some environments, some raw materials are prone to moisture absorption, which can lead to clumping. These clumps are difficult to completely break up in subsequent mixing processes, which affects the uniform distribution of various components in the finished dialysis powder and thus poses a potential threat to product quality.
[0004] Therefore, there is an urgent need to design a dialysis powder stirring and drying device to solve the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, this utility model provides a dialysis powder stirring and drying device.
[0006] A dialysis powder stirring and drying device includes a support frame, which is an installation carrier composed of several trusses. A load-bearing frame is provided between the lower trusses, and the middle truss is higher than the side trusses. A drying chamber is fixed between the higher trusses in the middle of the support frame. The bottom of the drying chamber is connected to the top of the load-bearing frame. A cavity is formed in the inner wall of the drying chamber, and a rotatable protrusion is provided on one side of the exterior. A control box is located on one side of the upper part of the support frame. A gear oil pump is installed on one side of the inner bottom. A heater is installed near the edge of one side of the inner bottom, and the heater is connected to the gear oil pump. The output end of the heater is connected to an upwardly bent wire extending to the upper side of the drying chamber. The first oil pipe connects to the return end of the gear oil pump, which is bent upwards and extends to the other side of the upper part of the drying chamber. Both the first and second oil pipes are connected to the cavity of the drying chamber. A three-phase motor is installed at the bottom center of the support frame. Its output end and the convex rod of the drying chamber are rotatably equipped with pulleys. A synchronous belt is fitted between the two pulleys. A sealing cover is hinged to the top of the drying chamber. A main shaft is rotatably installed inside the drying chamber. One end of the main shaft is connected to the convex rod, and the other end is connected to the truss of the support frame. A large mixing propeller and a small mixing propeller are serpentinely wrapped around the outside of the main shaft. A discharge pipe is connected to the lower part of the outside of the drying chamber.
[0007] Furthermore, the smaller mixing propeller is located on the inward side of the larger mixing propeller, and the larger and smaller mixing propellers have opposite directions of rotation.
[0008] Furthermore, it also includes a speed reducer, which is installed on one side of the bottom of the support frame near the three-phase motor, and the speed reducer is connected to the output shaft of the three-phase motor.
[0009] Furthermore, it also includes a connector mounting plate, a cylinder, and a mounting base. The top two sides of the sealing cover are provided with connector mounting plates, and the upper two outer sides of the drying chamber are each equipped with a cylinder. The bottom of the cylinder is provided with a mounting base that provides hinge support. The mounting base is connected to the top of the higher truss of the support frame, and the piston rod of the cylinder extends outward and is connected to the corresponding connector mounting plate.
[0010] Furthermore, the lower part of the discharge pipe is designed with a curved shape to facilitate the transport of materials.
[0011] Furthermore, it also includes a butterfly valve, which is installed on the bend of the discharge pipe.
[0012] Furthermore, the bottom of the support frame is symmetrically equipped with several anti-slip legs to provide additional support.
[0013] Furthermore, each corner of the bottom of the support frame is symmetrically equipped with casters to assist in the movement of the equipment.
[0014] Furthermore, the control box is electrically connected to the gear oil pump, heater, three-phase motor, reducer, cylinder, and butterfly valve.
[0015] The beneficial effects are as follows: 1. This utility model ensures comprehensive and meticulous mixing of materials in the drying chamber through the reverse spiral design of the large mixing propeller and the small mixing propeller, breaking up agglomerates and improving the uniformity and quality of the final product; through the cooperation of the hot oil circulation system and the heater, efficient heat transfer and utilization are achieved, reducing energy waste; the hot oil circulation not only ensures uniform temperature distribution in the drying chamber, but also extends the service life of the heater.
[0016] 2. This utility model achieves automated control of the entire system by controlling the electrical connection between the control box and each key component, simplifying the operation process, reducing the need for manual intervention, and improving production efficiency.
[0017] 3. This utility model ensures the sealing of the drying chamber during operation through the cylinder control mechanism of the sealing cover, preventing external contamination; while the butterfly valve on the discharge pipe provides precise flow control, ensuring safe and smooth discharge. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model.
[0019] Figure 2 This is a three-dimensional structural diagram of the drying chamber, control box, and gear oil pump of this utility model.
[0020] Figure 3 This is a schematic diagram of the planar structure of the drying chamber and main shaft of this utility model after full cross-section.
[0021] Figure 4 This is a top view of the drying chamber, main shaft, and large mixing propeller of this utility model.
[0022] Figure 5 This is a three-dimensional structural diagram of the main shaft, large hybrid propeller, and small hybrid propeller of this utility model.
[0023] The components and their numbers in the diagram are as follows: 1. Support frame, 2. Drying chamber, 3. Control box, 4. Gear oil pump, 5. Heater, 6. First oil pipe, 7. Second oil pipe, 8. Three-phase motor, 9. Reducer, 10. Pulley, 11. Synchronous belt, 12. Connector mounting plate, 13. Cylinder, 14. Mounting seat, 15. Sealing cover, 16. Main shaft, 17. Large mixing propeller, 18. Small mixing propeller, 19. Discharge pipe, 20. Butterfly valve. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example: A dialysis powder stirring and drying device, such as... Figures 1-5As shown, it includes a support frame 1, which is an installation carrier composed of several welded trusses and made of high-strength steel material, providing sufficient strength and stability while possessing good corrosion resistance. A load-bearing frame is provided between the lower trusses of the support frame 1, and the middle truss of the support frame 1 is higher than the side trusses. The support frame 1 provides mechanical support and structural integrity for other major components. Several anti-slip outriggers are symmetrically arranged at the bottom of the support frame 1 to provide additional support. Universal casters are symmetrically provided at each corner of the bottom of the support frame 1 to facilitate equipment movement and positioning. A drying chamber 2 is bolted between the higher trusses in the middle of the support frame 1. The drying chamber 2 is used to accommodate and... The drying chamber 2, used for processing dialysis powder raw materials, is bolted to the bottom of the support frame to distribute weight and provide additional stability. A cavity is formed in the inner wall of the drying chamber 2, and a convex rod is rotatably mounted on one side of the exterior via a bearing. The inner wall of the drying chamber 2 is made of high-temperature resistant and corrosion-resistant stainless steel, and is wrapped with high-efficiency insulation material to reduce heat loss. A control box 3 is located on one side of the upper part of the support frame 1, centrally managing the start and stop of all electrical components and setting parameters such as temperature, time, and stirring speed. A gear oil pump 4 is installed on one side of the bottom of the support frame 1, and a heater 5 is installed near the edge of the bottom of the support frame 1. The heater 5 is connected to the gear oil pump 4. The output end of the gear oil pump 4 is connected via a flange to a first oil pipe 6 that bends upward and extends to one side of the upper part of the drying chamber 2. The return end of the gear oil pump 4 is connected via a flange to a second oil pipe 7 that bends upward and extends to the other side of the upper part of the drying chamber 2. Both the first oil pipe 6 and the second oil pipe 7 are connected to the cavity of the drying chamber 2. The first oil pipe 6 and the second oil pipe 7 respectively transport hot oil from the heater 5 to the upper part of the drying chamber 2 and return the cooled oil to the gear oil pump 4, forming a closed hot oil circulation system. A three-phase motor 8 is installed at the center of the bottom inside the support frame 1. Its output end and the protrusion of the drying chamber 2 are both rotatably equipped with pulleys 10 through keyways and keys. A synchronous belt 11 is fitted between the two pulleys 10 to ensure... To ensure the synchronization and stability of power transmission, a sealing cover 15 is hinged to the top of the drying chamber 2 to seal the drying chamber 2 and prevent outside air from entering and affecting the internal environment. A main shaft 16 is rotatably installed inside the drying chamber 2. One end of the main shaft 16 is connected to a convex rod through a bearing, and the other end is connected to the truss of the support frame 1 through a bearing. A large mixing propeller 17 and a small mixing propeller 18 are serpentinely wrapped around the outside of the main shaft 16. The small mixing propeller 18 is located on the side of the large mixing propeller 17 facing inward, and the large mixing propeller 17 and the small mixing propeller 18 have opposite directions of wrapping. A discharge pipe 19 is connected to the lower part of the outside of the drying chamber 2 through a flange. The lower part of the discharge pipe 19 has a curved design to facilitate the conveying of materials.
[0026] like Figure 2As shown, it also includes a speed reducer 9. The speed reducer 9 is bolted to one side of the bottom of the support frame 1, near the three-phase motor 8. The speed reducer 9 is connected to the output shaft of the three-phase motor 8 through a coupling. The speed reducer 9 can reduce the speed of the three-phase motor 8 and increase the torque, ensuring that the main shaft 16 can rotate stably and provide sufficient stirring force.
[0027] like Figure 2 As shown, it also includes a connector mounting plate 12, a cylinder 13, and a mounting base 14. The top two sides of the sealing cover 15 are provided with connector mounting plates 12, and the upper two outer sides of the drying chamber 2 are each equipped with a cylinder 13. The bottom of the cylinder 13 is provided with a mounting base 14 that provides hinge support. The mounting base 14 is connected to the top of the higher truss of the support frame 1. The piston rod of the cylinder 13 extends outward and is connected to the corresponding connector mounting plate 12 and fixed by bolts. The connector mounting plate 12, the cylinder 13, and the mounting base 14 together can control the opening and closing of the sealing cover 15, ensuring convenient and safe operation.
[0028] like Figure 2 As shown, it also includes a butterfly valve 20, which is bolted to the bend of the discharge pipe 19. The butterfly valve 20 is made of corrosion-resistant material and is used to control the discharge speed on the discharge pipe 19 to prevent material blockage or overflow and ensure the safe and smooth discharge process. The control box 3 is electrically connected to the gear oil pump 4, heater 5, three-phase motor 8, reducer 9, cylinder 13 and butterfly valve 20 through cables to ensure the reliability of signal transmission and power supply.
[0029] In operation, the cylinder 13 is activated by the control box 3, causing the piston rod of the cylinder 13 to extend outward and push the connector mounting plate 12, thereby opening the sealing cover 15. The dialysis powder raw material (Powder A or Powder B) to be processed is then poured into the drying chamber 2, ensuring that the raw material is filled evenly and avoiding excessive accumulation. After loading, the piston rod of the cylinder 13 is retracted, causing the sealing cover 15 to close, ensuring that the drying chamber 2 is completely sealed. Then, the required parameters such as temperature, time, and stirring speed are set by the control box 3, and the heater 5 is activated. Hot oil bends upward through the first oil pipe 6 and extends to the upper side of the drying chamber 2, entering the cavity of the drying chamber 2. At the same time, the control box 3 starts the gear oil pump 4, and the hot oil circulates inside the drying chamber 2. After passing through the cavity, it flows back to the gear oil pump 4 through the second oil pipe 7, forming a closed hot oil circulation system. Then, the three-phase motor 8 is activated, and its output is reduced by the reducer 9. Low speed and increased torque ensure stable rotation of the main shaft 16 and provide sufficient stirring force. When the three-phase motor 8 starts, its output drives the pulley 10 to rotate, thereby driving the synchronous belt 11 to drive the cam and the main shaft 16 to rotate synchronously. After the main shaft 16 starts to rotate, the large mixing screw 17 and the small mixing screw 18 work together. The large mixing screw 17 is responsible for large-area stirring, while the small mixing screw 18 performs fine mixing, effectively breaking up agglomerates and ensuring uniform material distribution. The control box 3 simultaneously controls the heater 5 and the three-phase motor 8 to maintain a constant internal temperature in the drying chamber 2 and continuously stir, ensuring that the material is heated evenly in a high-temperature environment and gradually loses moisture. After drying is completed, the control box 3 stops the heater 5 and the motor, waiting for the material to cool down. Finally, the butterfly valve 20 on the discharge pipe 19 is opened by the control box 3 to allow the finished dialysis powder to be discharged smoothly into the collection container.
[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A dialysis powder stirring and drying device, characterized in that, The system includes a support frame (1), which is an installation carrier composed of several trusses. A load-bearing frame is provided between the lower trusses, and the middle truss is higher than the trusses on both sides. A drying chamber (2) is fixed between the higher trusses in the middle of the support frame (1). The bottom of the drying chamber (2) is connected to the top of the load-bearing frame. A cavity is opened in the inner wall of the drying chamber (2), and a convex rod is rotatably provided on the outer side. A control box (3) is provided on the upper side of the support frame (1). A gear oil pump (4) is installed on the inner bottom side. A heater (5) is installed near the edge on the inner bottom side. The heater (5) is connected to the gear oil pump (4). The output end of the heater (5) is connected to a first oil pipe (6) that bends upward and extends to the upper side of the drying chamber (2). The return end of the gear oil pump (4) is connected to a first oil pipe (6) that bends upward and extends to the upper side of the drying chamber (2). The second oil pipe (7) extends to the other side of the upper part of the drying chamber (2). The first oil pipe (6) and the second oil pipe (7) are both connected to the cavity of the drying chamber (2). A three-phase motor (8) is installed in the middle of the bottom of the support frame (1). The output end of the motor and the convex rod of the drying chamber (2) are both rotatably equipped with pulleys (10). A synchronous belt (11) is fitted between the two pulleys (10). A sealing cover (15) is hinged to the top of the drying chamber (2). A main shaft (16) is rotatably installed inside the drying chamber (2). One end of the main shaft (16) is connected to the convex rod, and the other end is connected to the truss of the support frame (1). The main shaft (16) is surrounded in a serpentine shape by a large mixing propeller (17) and a small mixing propeller (18). A discharge pipe (19) is connected to the lower part of the outer side of the drying chamber (2).
2. The dialysis powder stirring and drying equipment according to claim 1, characterized in that, The small mixing propeller (18) is located on the inward side of the large mixing propeller (17), and the large mixing propeller (17) and the small mixing propeller (18) have opposite directions of rotation.
3. The dialysis powder stirring and drying equipment according to claim 2, characterized in that, It also includes a speed reducer (9), which is installed on one side of the bottom of the support frame (1) near the three-phase motor (8). The speed reducer (9) is connected to the output shaft of the three-phase motor (8).
4. The dialysis powder stirring and drying equipment according to claim 3, characterized in that, It also includes a connector mounting plate (12), a cylinder (13) and a mounting base (14). The top two sides of the sealing cover (15) are provided with connector mounting plates (12). The upper two outer sides of the drying chamber (2) are equipped with cylinders (13). The bottom of the cylinder (13) is provided with a mounting base (14) that provides hinge support. The mounting base (14) is connected to the top of the higher truss of the support frame (1). The piston rod of the cylinder (13) extends outward and is connected to the corresponding connector mounting plate (12).
5. The dialysis powder stirring and drying equipment according to claim 4, characterized in that, The lower part of the discharge pipe (19) is designed in a curved shape to facilitate the conveying of materials.
6. The dialysis powder stirring and drying equipment according to claim 5, characterized in that, It also includes a butterfly valve (20), which is installed on the bend of the discharge pipe (19).
7. The dialysis powder stirring and drying equipment according to claim 6, characterized in that, The bottom of the support frame (1) is symmetrically provided with several anti-slip legs to provide additional support.
8. The dialysis powder stirring and drying equipment according to claim 7, characterized in that, The support frame (1) has symmetrical casters at each corner of the bottom for moving auxiliary equipment.
9. The dialysis powder stirring and drying equipment according to claim 8, characterized in that, The control box (3) is electrically connected to the gear oil pump (4), heater (5), three-phase motor (8), reducer (9), cylinder (13) and butterfly valve (20).