A device for crystallization separation of a CT contrast agent intermediate

Abstract

The utility model discloses a CT contrast medium intermediate crystallization separation device, include: crystallization cylinder, its upper end is provided with the cylinder cover, the inside rotation of cylinder cover is connected with the stirring frame, the upper end fixed connection of stirring frame has the motor, the motor is fixedly connected with cylinder cover, the inside of crystallization cylinder is provided with the scraping mechanism for cleaning the inside wall of crystallization cylinder, the inside of cylinder cover is provided with the water spraying subassembly for spraying hot water to the inside of crystallization cylinder, the cooling assembly for reducing the temperature in the inside of crystallization cylinder is provided on the crystallization cylinder, the utility model discloses through setting up the scraping mechanism, can clear the crystallization of the inside wall attachment in time after crystallization, this effectively prevents crystallization long -term accumulation, avoids its influence crystallization cylinder internal space, guarantees the normal development of subsequent crystallization operation, and, clean inside wall can ensure that crystallization environment is stable, is helpful to improve the purity and quality of crystallization product, strengthens the overall performance of device.

Description

Technical Field

[0001] This utility model relates to the technical field of crystallization separation devices, specifically a crystallization separation device for CT contrast agent intermediates. Background Technology

[0002] CT contrast agents play an indispensable role in the field of medical imaging diagnosis, helping doctors to observe internal human structures more clearly, thereby improving the accuracy of disease diagnosis and the early detection rate. CT contrast agent intermediates, as key raw materials in the production of CT contrast agents, directly affect the performance and safety of the final contrast agent. Crystallization separation is a crucial step in the production process of CT contrast agent intermediates. The crystallization process allows the intermediates to precipitate from the solution in a specific crystalline form, while the separation process effectively separates the crystalline products from uncrystallized impurities, solvents, etc., thereby obtaining high-purity, high-quality CT contrast agent intermediates, laying the foundation for the subsequent production of high-quality CT contrast agents.

[0003] Existing devices lack an effective internal wall cleaning mechanism. After crystallization, the crystals accumulated on the inner wall are difficult to remove. Over time, the crystal accumulation becomes thicker and thicker, not only occupying the effective space of the crystallization cylinder and affecting subsequent crystallization operations, but also breeding bacteria and other microorganisms, threatening product quality and production safety. Therefore, we need to propose a crystallization and separation device for CT contrast agent intermediates. Utility Model Content

[0004] The purpose of this invention is to provide a crystallization separation device for CT contrast agent intermediates, which is equipped with a scraping mechanism to scrape off the crystals on the inner wall of the crystallization cylinder, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A CT contrast agent intermediate crystallization separation device, comprising:

[0007] A crystallization cylinder is provided with a cylinder cover at its upper end. A stirring frame is rotatably connected inside the cylinder cover. A motor is fixedly connected to the upper end of the stirring frame. The motor is fixedly connected to the cylinder cover. A scraping mechanism for cleaning the inner wall of the crystallization cylinder is provided inside the crystallization cylinder.

[0008] The inside of the cylinder cover is equipped with a water spraying component for spraying hot water into the crystallization cylinder.

[0009] The crystallization cylinder is equipped with a cooling component for reducing the internal temperature of the crystallization cylinder.

[0010] The lower end of the crystallization cylinder is fixedly connected to a discharge pipe.

[0011] Preferably, the scraping mechanism includes a scraping frame, a first mounting ring, a triangular block, a second mounting ring, and a connecting assembly;

[0012] The crystallization cylinder is equipped with a scraper inside, and a first mounting ring is fixedly connected inside the scraper. Multiple triangular blocks distributed in a ring are fixedly connected inside the first mounting ring. A second mounting ring is fixedly connected inside the multiple triangular blocks. A connecting component for connecting a stirring rack is provided at the upper end of the second mounting ring.

[0013] Preferably, the connecting assembly includes a lifting ring, a lifting rod, a guide plate, a rotating frame, a limiting ring, and an electric push rod;

[0014] The first and second mounting rings are both in contact with a lifting ring at their upper ends. The lower end of the lifting ring is fixedly connected to a plurality of lifting rods arranged in a ring. The interior of the lifting ring is slidably connected to a plurality of guide plates arranged in a ring. The guide plates are respectively fixedly connected to a stirring frame. The upper end of the lifting ring is fixedly connected to a rotating frame. A limit ring is rotatably connected to the outer side of the rotating frame. The limit ring is rotatably connected to the lifting ring. The upper end of the limit ring is fixedly connected to the output end of an electric push rod. The electric push rod is fixedly connected to the cylinder cover.

[0015] Preferably, the water spray assembly includes an inlet pipe, a nozzle, a connecting pipe, and an outlet ring;

[0016] The inner part of the cylinder cover is fixedly connected to a water inlet pipe, the lower end of the water inlet pipe is fixedly connected to a nozzle, a connecting pipe is fixedly connected to the side wall of the water inlet pipe, one end of the connecting pipe is fixedly connected to a water outlet ring, and the inner bottom of the water outlet ring is provided with a plurality of water outlet holes distributed in a ring.

[0017] Preferably, the cooling component includes a heat-conducting ring, a heat-conducting pipe, a water pump, a water tank, and a fixing plate;

[0018] The crystallization cylinder is equipped with a heat-conducting ring fixedly connected inside, and heat-conducting pipes are fixedly connected inside both the crystallization cylinder and the heat-conducting ring. A water pump is fixedly connected to one end of the heat-conducting pipe, and a water tank is fixedly connected to the outside of the water pump's inlet pipe. The water tank is fixedly connected to the heat-conducting pipe, and a fixing plate is fixedly connected to the lower end of the water tank. The fixing plate is fixedly connected to the crystallization cylinder.

[0019] Preferably, a separation box is fixedly connected to the lower end of the discharge pipe, and a solid pipe is fixedly connected to the lower end of the separation box.

[0020] Preferably, a filter plate is fixedly connected inside the separation box, and a liquid pipe is fixedly connected to the side wall of the separation box.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This invention, by setting up a scraping mechanism, can promptly remove the crystals adhering to the inner wall after crystallization is completed. This effectively prevents the crystals from accumulating for a long time, avoiding their impact on the internal space of the crystallization cylinder, ensuring the normal operation of subsequent crystallization operations. Moreover, a clean inner wall can ensure a stable crystallization environment, which helps to improve the purity and quality of the crystallized product and enhance the overall performance of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 This is a partial structural schematic diagram of the present invention;

[0026] Figure 4 The structure of this utility model Figure 3 Enlarged view of a portion of point A in the middle;

[0027] Figure 5 This is a partial structural diagram of the scraping component of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the water spray assembly of this utility model.

[0029] In the diagram: 1. Crystallization cylinder; 2. Cylinder cover; 3. Feed pipe; 4. Stirring rack; 5. Motor; 6. Scraping mechanism; 61. Scraping rack; 62. First mounting ring; 63. Triangular block; 64. Second mounting ring; 65. Connecting assembly; 651. Lifting ring; 652. Lifting rod; 653. Guide plate; 654. Rotating frame; 655. Limiting ring; 656. Electric push rod; 7. Water spray assembly; 71. Water inlet pipe; 72. Nozzle; 73. Connecting pipe; 74. Water outlet ring; 8. Cooling assembly; 81. Heat conduction ring; 82. Heat conduction pipe; 83. Water pump; 84. Water tank; 85. Fixing plate; 9. Discharge pipe; 10. Separation box; 11. Solid pipe; 12. Filter plate; 13. Liquid pipe. Detailed Implementation

[0030] 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.

[0031] Please see Figure 1-6This utility model provides a technical solution:

[0032] A CT contrast agent intermediate crystallization separation device, comprising:

[0033] The crystallization cylinder 1 has a cylinder cover 2 at its upper end. A stirring frame 4 is rotatably connected inside the cylinder cover 2. A motor 5 is fixedly connected to the upper end of the stirring frame 4. The motor 5 is fixedly connected to the cylinder cover 2. A scraping mechanism 6 for cleaning the inner wall of the crystallization cylinder 1 is provided inside the crystallization cylinder 1.

[0034] The inside of the cylinder cover 2 is equipped with a water spraying component 7 for spraying hot water into the crystallization cylinder 1;

[0035] The crystallizing cylinder 1 is equipped with a cooling component 8 for reducing the internal temperature of the crystallizing cylinder 1;

[0036] The lower end of the crystallization cylinder 1 is fixedly connected to the discharge pipe 9.

[0037] For example, the crystallization cylinder 1, as the core container of the entire device, provides a specific spatial environment for the crystallization process of the CT contrast agent intermediate. A cylinder cover 2 is provided at its upper end, which fits tightly with the crystallization cylinder 1 to provide a seal, preventing external impurities from entering during the crystallization process and ensuring the purity of the crystals. The stirring rack 4, made of specific materials and with a specific structure, can fully stir the material inside the crystallization cylinder 1 during rotation, ensuring uniform mixing and promoting uniform crystal formation. The motor 5, as the power source, provides stable power for the rotation of the stirring rack 4. The motor 5 is fixedly connected to the cylinder cover 2, and a reasonable installation method ensures that the motor 5 operates smoothly during operation. The stability of the crystallization cylinder 1 is ensured, and the stirring effect is not affected by vibration or other factors. The scraping mechanism 6 can promptly clean the crystals adhering to the inner wall of the crystallization cylinder 1 after crystallization, preventing crystal accumulation from affecting subsequent use and ensuring the cleanliness of the crystallization cylinder 1. The water spraying component 7 can accurately and evenly spray hot water into the crystallization cylinder 1, facilitating the cleaning work. Through reasonable layout and structural design, this component ensures that hot water can cover all areas inside the crystallization cylinder 1, improving the utilization efficiency of hot water and avoiding problems such as local overheating or uneven spraying. The cooling component 8 can adjust the temperature inside the crystallization cylinder 1 according to process requirements, so that the material crystallizes under suitable temperature conditions. By implementing effective cooling measures, the crystallization speed and crystal size can be controlled, thereby obtaining higher quality crystalline products. This component adopts advanced cooling technology and reliable equipment to ensure the stability and controllability of the cooling process. The lower end of the crystallization cylinder 1 is fixedly connected to the discharge pipe 9, which serves as the output channel for the crystalline products. Its design and installation position have been carefully considered. The diameter and length of the discharge pipe 9 are rationally selected according to the flow rate and characteristics of the material to ensure that the crystalline products can be discharged smoothly and quickly from the crystallization cylinder 1. At the same time, the connection between the discharge pipe 9 and the crystallization cylinder 1 adopts a sealing design to prevent material leakage and ensure the safety and hygiene of the production process. The inside of the cylinder cover 2 is equipped with a feed pipe 3, which facilitates the injection of raw materials into the crystallization cylinder 1.

[0038] The scraping mechanism 6 includes a scraping frame 61, a first mounting ring 62, a triangular block 63, a second mounting ring 64, and a connecting assembly 65;

[0039] The crystallization cylinder 1 is equipped with a scraper 61 inside, a first mounting ring 62 is fixedly connected inside the scraper 61, a plurality of triangular blocks 63 are fixedly connected inside the first mounting ring 62, a second mounting ring 64 is fixedly connected inside the plurality of triangular blocks 63, and a connecting component 65 for connecting the stirring rack 4 is provided at the upper end of the second mounting ring 64.

[0040] For example, the shape and size of the scraping frame 61 are adapted to the inner wall of the crystallization cylinder 1, and it can fit tightly against the inner wall to perform scraping operations. The first mounting ring 62 serves to support and connect other components. Its material has sufficient strength and stability to withstand the force during the scraping process. The design of the triangular block 63 increases the stability and rigidity of the structure, and at the same time facilitates connection and fixation with other components. The internal parts of multiple triangular blocks 63 are fixedly connected to the second mounting ring 64. The second mounting ring 64 provides the mounting base for the connecting assembly 65. The upper end of the second mounting ring 64 is provided with a connecting assembly 65 for connecting the stirring frame 4. Through the connecting assembly 65, the scraping mechanism 6 can be linked with the stirring frame 4. When the stirring frame 4 rotates, it drives the scraping mechanism 6 to perform corresponding movements to complete the scraping work on the inner wall of the crystallization cylinder 1.

[0041] The connecting assembly 65 includes a lifting ring 651, a lifting rod 652, a guide plate 653, a rotating frame 654, a limiting ring 655, and an electric push rod 656;

[0042] The upper ends of the first mounting ring 62 and the second mounting ring 64 are both in contact with the lifting ring 651. The lower end of the lifting ring 651 is fixedly connected to a plurality of ring-shaped lifting rods 652. The interior of the lifting ring 651 is slidably connected to a plurality of ring-shaped guide plates 653. The plurality of guide plates 653 are fixedly connected to the stirring frame 4 respectively. The upper end of the lifting ring 651 is fixedly connected to the rotating frame 654. The outer side of the rotating frame 654 is rotatably connected to the limiting ring 655. The limiting ring 655 is rotatably connected to the lifting ring 651. The upper end of the limiting ring 655 is fixedly connected to the output end of the electric push rod 656. The electric push rod 656 is fixedly connected to the cylinder cover 2.

[0043] For example, the lifting ring 651 can move up and down within a certain range, thereby realizing the lifting and lowering adjustment of the scraping mechanism 6. The lifting rod 652 plays a supporting and force-transmitting role, ensuring the stable movement of the lifting ring 651. The guide plate 653 provides guidance for the movement of the lifting ring 651, enabling it to rise and fall according to a predetermined trajectory, while ensuring the relative position between the lifting ring 651 and the stirring rack 4 is stable. The rotating frame 654 can rotate together with the lifting ring 651, while providing an installation position for the limiting ring 655. The outer side of the rotating frame 654 is rotatably connected to the limiting ring 655, which is rotatably connected to the lifting ring 651. The limiting ring 655 plays a role in limiting the range of motion of the rotating frame 654, ensuring the stability and safety of the scraping mechanism 6 during movement. The upper end of the limiting ring 655 is fixedly connected to the output end of the electric push rod 656, which is fixedly connected to the cylinder cover 2. As a power element, the electric push rod 656 can accurately control the lifting height and speed of the lifting ring 651, thereby realizing flexible control of the scraping mechanism 6.

[0044] The water spray assembly 7 includes an inlet pipe 71, a nozzle 72, a connecting pipe 73, and an outlet ring 74;

[0045] The inner part of the cylinder cover 2 is fixedly connected to a water inlet pipe 71, the lower end of the water inlet pipe 71 is fixedly connected to a nozzle 72, a connecting pipe 73 is fixedly connected to the side wall of the water inlet pipe 71, and a water outlet ring 74 is fixedly connected to one end of the connecting pipe 73. Multiple water outlet holes are provided in a ring at the bottom of the inner part of the water outlet ring 74.

[0046] For example, the inlet pipe 71 serves as the input channel for hot water. Its material has good heat resistance and sealing properties, ensuring that the hot water does not leak during transportation. The lower end of the inlet pipe 71 is fixedly connected to a nozzle 72. The nozzle 72 adopts a special structural design, which can spray hot water in the form of fine water droplets, improving the uniformity and coverage of hot water spraying. The connecting pipe 73 serves to branch and guide the hot water, distributing the hot water to different spraying areas. One end of the connecting pipe 73 is fixedly connected to a water outlet ring 74. The water outlet ring 74 has a ring structure and surrounds the inner wall of the crystallization cylinder 1. The bottom of the water outlet ring 74 has multiple water outlet holes distributed in a ring. Hot water is evenly sprayed onto the inner wall of the crystallization cylinder 1 through the water outlet holes, which facilitates the cleaning work.

[0047] The cooling component 8 includes a heat-conducting ring 81, a heat-conducting pipe 82, a water pump 83, a water tank 84, and a fixing plate 85;

[0048] The crystallization cylinder 1 is fixedly connected to a heat-conducting ring 81. Both the crystallization cylinder 1 and the heat-conducting ring 81 are fixedly connected to heat-conducting pipes 82. One end of the heat-conducting pipe 82 is fixedly connected to a water pump 83. The outside of the water inlet pipe 71 of the water pump 83 is fixedly connected to a water tank 84. The water tank 84 is fixedly connected to the heat-conducting pipe 82. The lower end of the water tank 84 is fixedly connected to a fixing plate 85. The fixing plate 85 is fixedly connected to the crystallization cylinder 1.

[0049] For example, the heat-conducting ring 81 is made of a material with high thermal conductivity, which can quickly transfer the heat inside the crystallization cylinder 1. The heat-conducting pipe 82 is distributed in a spiral shape, which increases the heat exchange area and improves the cooling efficiency. The water pump 83 serves as a circulation power source, which can draw the coolant in the water tank 84 into the heat-conducting pipe 82 to form a circulation flow. The water tank 84 is used to store coolant, and its capacity is reasonably designed according to the cooling requirements of the device. A sealing plug is provided on the side wall of the water tank 84 to facilitate the discharge of the internal coolant. By opening the cover at the top of the water tank 84, it is easy to inject new coolant into the water tank 84. The water tank 84 is fixedly connected to the heat-conducting pipe 82 to ensure that the coolant can circulate smoothly between the water tank 84 and the heat-conducting pipe 82. A fixing plate 85 is fixedly connected to the lower end of the water tank 84. The fixing plate 85 is fixedly connected to the crystallization cylinder 1. The fixing plate 85 securely installs the water tank 84 on the crystallization cylinder 1 to ensure the stability and reliability of the entire cooling assembly 8.

[0050] A separation box 10 is fixedly connected to the lower end of the discharge pipe 9. A solid pipe 11 is fixedly connected to the lower end of the separation box 10. A filter plate 12 is fixedly connected inside the separation box 10. A liquid pipe 13 is fixedly connected to the side wall of the separation box 10.

[0051] For example, the separation chamber 10 serves as the separation site for crystallized products, effectively separating crystalline solids and liquids. The solid pipe 11 is used to discharge the separated crystalline solids, and its diameter and length are designed according to the flow rate and characteristics of the solids to ensure smooth discharge. The filter plate 12 uses appropriate pore size and material to effectively intercept the crystalline solids, allowing the liquid to flow out through the filter plate 12, thus achieving solid-liquid separation. The liquid pipe 13 is used to discharge the separated liquids, and its position and size are reasonably designed to facilitate liquid collection and processing. Through the synergistic effect of the separation chamber 10 and its related components, the separation task of crystalline products can be completed efficiently, improving product quality and production efficiency.

[0052] Working principle: First, raw material injection and crystallization preparation are carried out. The raw material of the CT contrast agent intermediate is accurately injected into the crystallization cylinder 1 through the feed pipe 3 set on the cylinder cover 2. Then, the feed pipe 3 is sealed, and the crystallization process is started. The motor 5 starts to run, driving the stirring rack 4 to rotate, which fully stirs the raw material in the crystallization cylinder 1, so that the material is mixed evenly, creating good conditions for the uniform formation of crystals. At the same time, the cooling component 8 plays a role. The water pump 83 draws the coolant in the water tank 84 into the heat conduction pipe 82. The heat conduction pipe 82 is spirally distributed and cooperates with the heat conduction ring 81 to quickly transfer the heat in the crystallization cylinder 1. The temperature inside the cylinder is precisely adjusted according to the process requirements to control the crystallization speed and crystal size, thereby obtaining high-quality crystallized products.

[0053] After crystallization, the cleaning stage begins. The electric actuator 656 is activated, pushing the lifting ring 651 downward. The lifting rod 652 directly inserts into the interior of the first mounting ring 62 and the second mounting ring 64 (or contacts the inclined surface of the triangular block 63, causing the triangular block 63 to rotate, and then inserts into the interior of the first mounting ring 62 and the second mounting ring 64). The stirring rack 4 rotates, driving the lifting ring 651 to rotate through the guide plate 653. The lifting ring 651 drives the triangular block 63 and the scraping rack 61 to rotate through the lifting rod 652. The scraping rack 61 rotates to scrape off the crystals adhering to the inner wall. The scraping work can also be carried out periodically to avoid the crystals on the inner wall of the crystallization cylinder 1 becoming too thick.

[0054] After cleaning, the crystallized product enters the separation box 10 through the discharge pipe 9 at the lower end of the crystallization cylinder 1. The filter plate 12 plays a solid-liquid separation role, intercepting the crystallized solid and discharging it from the solid pipe 11 at the lower end of the separation box 10; the liquid passes through the filter plate 12 and is discharged from the liquid pipe 13 on the side wall of the separation box 10, thus achieving effective separation of crystallized solid and liquid, improving product quality and production efficiency.

[0055] After the work is completed, the water spray assembly 7 starts to work. Hot water enters through the inlet pipe 71, part of which is sprayed out from the nozzle 72, and the other part enters the water outlet ring 74 through the connecting pipe 73. It is then evenly sprayed onto the inner wall of the crystallizing cylinder 1 from the water outlet hole to carry out the cleaning work. At the same time, the scraper 61 also rotates to improve the cleaning efficiency.

[0056] In this application, the control method of motor 5, electric actuator 656, and water pump 83 is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this application is mainly used to protect the structure, shape, and their combination, so this application will not explain the control method and circuit connection in detail. The device is powered by a built-in power supply or an external power supply.

[0057] 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 crystallization separation device for CT contrast agent intermediates, characterized in that, include: A crystallization cylinder (1) is provided with a cylinder cover (2) at its upper end. A stirring rack (4) is rotatably connected inside the cylinder cover (2). A motor (5) is fixedly connected to the upper end of the stirring rack (4). The motor (5) is fixedly connected to the cylinder cover (2). A scraping mechanism (6) for cleaning the inner wall of the crystallization cylinder (1) is provided inside the crystallization cylinder (1). The inside of the cylinder cover (2) is provided with a water spraying assembly (7) for spraying hot water into the crystallization cylinder (1); The crystallization cylinder (1) is provided with a cooling component (8) for reducing the internal temperature of the crystallization cylinder (1); The lower end of the crystallization cylinder (1) is fixedly connected to the discharge pipe (9).

2. The CT contrast agent intermediate crystallization separation device according to claim 1, characterized in that: The scraping mechanism (6) includes a scraping frame (61), a first mounting ring (62), a triangular block (63), a second mounting ring (64), and a connecting assembly (65); The crystallization cylinder (1) is provided with a scraper (61) inside. A first mounting ring (62) is fixedly connected inside the scraper (61). A plurality of triangular blocks (63) distributed in a ring are fixedly connected inside the first mounting ring (62). A second mounting ring (64) is fixedly connected inside the plurality of triangular blocks (63). A connecting component (65) for connecting the stirring rack (4) is provided at the upper end of the second mounting ring (64).

3. The CT contrast agent intermediate crystallization separation device according to claim 2, characterized in that: The connecting assembly (65) includes a lifting ring (651), a lifting rod (652), a guide plate (653), a rotating frame (654), a limiting ring (655), and an electric push rod (656); The upper ends of the first mounting ring (62) and the second mounting ring (64) are both in contact with the lifting ring (651). The lower end of the lifting ring (651) is fixedly connected to a plurality of lifting rods (652) distributed in a ring. The interior of the lifting ring (651) is slidably connected to a plurality of guide plates (653) distributed in a ring. The plurality of guide plates (653) are fixedly connected to the stirring rack (4) respectively. The upper end of the lifting ring (651) is fixedly connected to the rotating frame (654). The outer side of the rotating frame (654) is rotatably connected to the limiting ring (655). The limiting ring (655) is rotatably connected to the lifting ring (651). The upper end of the limiting ring (655) is fixedly connected to the output end of the electric push rod (656). The electric push rod (656) is fixedly connected to the cylinder cover (2).

4. The CT contrast agent intermediate crystallization separation device according to claim 1, characterized in that: The water spray assembly (7) includes an inlet pipe (71), a nozzle (72), a connecting pipe (73), and an outlet ring (74); The inner part of the cylinder cover (2) is fixedly connected to a water inlet pipe (71), the lower end of the water inlet pipe (71) is fixedly connected to a nozzle (72), a connecting pipe (73) is fixedly connected to the side wall of the water inlet pipe (71), and a water outlet ring (74) is fixedly connected to one end of the connecting pipe (73). The inner bottom of the water outlet ring (74) is provided with a plurality of water outlet holes distributed in a ring.

5. The CT contrast agent intermediate crystallization separation device according to claim 1, characterized in that: The cooling component (8) includes a heat-conducting ring (81), a heat-conducting pipe (82), a water pump (83), a water tank (84), and a fixing plate (85); The crystallization cylinder (1) is fixedly connected to a heat-conducting ring (81), and both the crystallization cylinder (1) and the heat-conducting ring (81) are fixedly connected to heat-conducting pipes (82). One end of the heat-conducting pipe (82) is fixedly connected to a water pump (83). A water tank (84) is fixedly connected to the outside of the water inlet pipe (71) of the water pump (83). The water tank (84) is fixedly connected to the heat-conducting pipe (82). A fixing plate (85) is fixedly connected to the lower end of the water tank (84). The fixing plate (85) is fixedly connected to the crystallization cylinder (1).

6. The CT contrast agent intermediate crystallization separation device according to claim 1, characterized in that: The lower end of the discharge pipe (9) is fixedly connected to a separation box (10), and the lower end of the separation box (10) is fixedly connected to a solid pipe (11).

7. The CT contrast agent intermediate crystallization separation device according to claim 6, characterized in that: A filter plate (12) is fixedly connected inside the separation box (10), and a liquid pipe (13) is fixedly connected to the side wall of the separation box (10).

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