Ion exchange equipment for treating strontium and cesium

Abstract

The utility model relates to the technical field of ion exchange equipment for strontium and cesium, in particular to ion exchange equipment for treating strontium and cesium, which comprises an exchange equipment body, a separation net and a separation net cover are arranged in the exchange equipment body, and a solution barrel is arranged at the top of the exchange equipment body; a spraying assembly used for improving the regeneration efficiency is arranged in the exchange equipment body, the spraying assembly comprises an inner cylinder, a spraying cover is fixedly mounted on the inner cylinder, and a rotating cover is arranged at the bottom end of the inner cylinder; the switch assembly is arranged between the solution barrel and the inner cylinder and is used for controlling the discharge of the regenerated liquid. By arranging the spraying assembly, regeneration liquid in the spraying cover and the rotating cover can be sprayed to resin in the exchange equipment body through the micropores for resin regeneration, and in the process that the driving motor drives the pressing plate to move downwards, the pressing plate can extrude the regeneration liquid in the inner cylinder, so that the spraying speed is increased, and the regeneration efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of strontium-cesium ion exchange equipment, in particular to an ion exchange equipment for processing strontium-cesium. Background Art

[0002] Strontium and cesium ion exchange equipment is mainly used to separate, purify or recover these two elements from solutions or mixtures. This type of equipment usually works based on the principle of ion exchange resins, and the ions on the resin are exchanged with the strontium or cesium ions in the solution to achieve the purpose of separation or purification. In the strontium and cesium ion exchange equipment, the regeneration liquid distribution device is a key component, which is responsible for ensuring that the regeneration liquid can be evenly and effectively distributed on the resin layer, and the regeneration liquid can quickly penetrate into the resin layer and undergo ion exchange reaction with the saturated resin, thereby achieving resin regeneration.

[0003] Most existing strontium and cesium ion exchange devices discharge regeneration liquid onto the resin through a regeneration liquid distribution device during resin regeneration, so that the regeneration liquid penetrates into the resin layer to regenerate the resin. However, when the regeneration liquid penetrates from the top to the bottom of the resin layer, the concentration of the regeneration liquid gradually decreases, resulting in different regeneration efficiencies below and above the resin, affecting the regeneration efficiency below.

[0004] To this end, an ion exchange device for treating strontium and cesium is proposed. Utility Model Content

[0005] The utility model aims to provide an ion exchange device for treating strontium and cesium, so as to solve the problem that most of the existing strontium and cesium ion exchange devices proposed in the above background technology discharge regeneration liquid onto the resin through a regeneration liquid distribution device during resin regeneration, so that the regeneration liquid penetrates into the interior of the resin layer to regenerate the resin, but when the regeneration liquid penetrates from the top to the bottom of the resin layer, the concentration of the regeneration liquid gradually decreases, resulting in different regeneration efficiencies below and above the resin, affecting the regeneration efficiency below.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ion exchange device for treating strontium and cesium, comprising an exchange device body, an isolation net and an isolation net cover are provided in the exchange device body, and a solution barrel is provided on the top of the exchange device body; a spray assembly for improving the regeneration efficiency is provided in the exchange device body, and the spray assembly comprises an inner cylinder, a spray cover is fixedly mounted on the inner cylinder, and a rotating cover is provided at the bottom end of the inner cylinder; and also comprises a switch assembly arranged between the solution barrel and the inner cylinder for controlling the discharge of the regeneration liquid, and the switch assembly comprises a pipe arranged between the solution barrel and the inner cylinder, a short pipe is provided in the pipe, a pressure plate is provided in the inner cylinder, and a baffle is provided in the pressure plate.

[0007] Preferably, a motor is fixedly mounted on the exchange device body, a threaded rod is fixedly connected to the output shaft of the motor, and the threaded rod is threadably connected to the pressure plate.

[0008] Preferably, a limiting groove is provided in the inner cylinder, and the pressure plate is slidably connected in the limiting groove, and a liquid discharge port connected to the spray hood is provided in the inner cylinder.

[0009] Preferably, the bottom end of the threaded rod is fixedly connected to the rotating cover, and the rotating cover is rotatably connected to the inner cylinder, and a plurality of micro holes are provided on the rotating cover and the spraying cover.

[0010] Preferably, a receiving opening is provided in the pipeline, the short tube is slidably connected in the receiving opening, and the short tube is in close contact with the inner wall of the receiving opening.

[0011] Preferably, the short tube is provided with a connection port communicating with the interior, and the connection port is located in the accommodating port, a circular plate is fixedly installed in the inner cylinder, and the pipeline is fixedly installed on the circular plate.

[0012] Preferably, a round sleeve is fixedly installed on the bottom end of the short tube, and a first spring is fixedly connected between the round sleeve and the pipeline, and a push rod is fixedly connected to the round sleeve.

[0013] Preferably, a slot is provided in the pressure plate, and a stopper is embedded in the top opening of the slot, and a second spring is fixedly connected between the stopper and the pressure plate.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model provides a spraying assembly so that the regeneration liquid in the spraying hood and the rotating hood can be sprayed to the resin in the exchange equipment body through micropores to regenerate the resin. When the driving motor drives the pressing plate to move downward, the pressing plate can squeeze the regeneration liquid in the inner cylinder to speed up the spraying rate and the regeneration efficiency.

[0016] 2. The utility model sets a switch assembly so that the motor reversely drives the pressure plate to move upward, and the block seat contacts the push rod and applies pressure to each other, so that the connecting port is separated from the accommodating port and enters the inner cavity of the pipeline, and the block seat enters the slot, so that the regeneration liquid in the solution barrel can reach the slot through the connecting port and flow out of the inner cylinder, and then flow into the spray hood and the rotating hood. The downward movement of the pressure plate can reset the pipeline and the block seat, and the regeneration liquid will no longer flow out of the solution barrel, thereby avoiding excessive waste caused by continuous outflow of the regeneration liquid.

[0017] 3. The utility model uses an isolation net and an isolation net cover to divide the resin in the exchange device body into two parts for simultaneous regeneration, thereby shortening the distance for the regeneration liquid to penetrate from the top to the bottom of the resin, and preventing the phenomenon that the concentration of the regeneration liquid gradually decreases when the regeneration liquid penetrates from the top to the bottom of the resin layer, thereby affecting the regeneration efficiency of the resin below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of an ion exchange device for treating strontium and cesium according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a spray hood of an ion exchange device for treating strontium and cesium according to an embodiment of the utility model;

[0021] Figure 3 The utility model is an ion exchange device for treating strontium and cesium. Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 This is a schematic cross-sectional structural diagram of an exchange device body of an ion exchange device for processing strontium and cesium according to an embodiment of the utility model;

[0023] Figure 5 The utility model is an ion exchange device for treating strontium and cesium. Figure 4 The enlarged structural diagram at B in the middle;

[0024] Figure 6 This is a schematic diagram of a pipeline cross-sectional structure of an ion exchange device for treating strontium and cesium according to an embodiment of the utility model;

[0025] Figure 7 The present invention is a schematic diagram of a rotating cover structure of an ion exchange device for treating strontium and cesium according to an embodiment of the present invention.

[0026] The markings in the figure are: 1. Exchange equipment body; 2. Isolation net; 3. Isolation net cover; 4. Solution barrel; 5. Inner cylinder; 6. Spray cover; 7. Rotating cover; 8. Pipe; 9. Short tube; 10. Press plate; 11. Block seat; 12. Motor; 13. Threaded rod; 14. Limit groove; 15. Drain port; 16. Micropore; 17. Receiving port; 18. Connecting port; 19. Round sleeve; 20. First spring; 21. Push rod; 22. Notch; 23. Second spring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] like Figures 1 to 7 As shown, a specific embodiment of the utility model provides an ion exchange device for treating strontium and cesium, comprising an exchange device body 1, wherein an isolation net 2 and an isolation net cover 3 are provided in the exchange device body 1, wherein an ion exchange resin is placed in the exchange device body 1, and the exchange device body 1 is divided into two parts by the isolation net 2 and the isolation net cover 3, so that the resin in the two parts can be regenerated at the same time, and a solution barrel 4 is provided on the top of the exchange device body 1; a spraying assembly for improving the regeneration efficiency is provided in the exchange device body 1, and the resin divided into two parts can be regenerated at the same time by setting the spraying assembly The spray assembly includes an inner cylinder 5, on which a spray hood 6 is fixedly mounted, and a rotating hood 7 is provided at the bottom end of the inner cylinder 5; the spray assembly also includes a switch assembly provided between the solution barrel 4 and the inner cylinder 5 for controlling the discharge of the regeneration liquid. By providing the switch assembly, the discharge of the regeneration liquid can be automatically controlled during the resin regeneration process without manually controlling its discharge. The switch assembly includes a pipe 8 provided between the solution barrel 4 and the inner cylinder 5, in which a short pipe 9 is provided, a pressure plate 10 is provided in the inner cylinder 5, and a stopper 11 is provided in the pressure plate 10.

[0030] like Figures 1 to 7As shown, specifically, a motor 12 is fixedly installed on the exchange device body 1, a threaded rod 13 is fixedly connected to the output shaft of the motor 12, and the threaded rod 13 is threadedly connected to the pressure plate 10, a limiting groove 14 is provided in the inner cylinder 5, and the pressure plate 10 is slidably connected in the limiting groove 14, and a drain port 15 connected to the spray hood 6 is provided in the inner cylinder 5. When the resin is regenerated, the motor 12 is started to drive the threaded rod 13 to rotate, so that the pressure plate 10 in the limiting groove 14 moves upward, a receiving port 17 is provided in the push rod pipeline 8, the short tube 9 is slidably connected in the receiving port 17, and the short tube 9 is tightly attached to the inner wall of the receiving port 17, the short tube 9 is provided with a connecting port 18 connected to the inside, and the connecting port 18 is located in the receiving port 17, a circular plate is fixedly installed in the inner cylinder 5, and the pipeline 8 is fixedly installed on the circular plate, a round sleeve 19 is fixedly installed at the bottom end of the short tube 9, and the round sleeve 19 is connected to the inner wall of the receiving port 17. A first spring 20 is fixedly connected between the pipes 8, a push rod 21 is fixedly connected to the circular sleeve 19, a slot 22 is opened in the pressure plate 10, and a stopper 11 is embedded in the top opening of the slot 22. A second spring 23 is fixedly connected between the stopper 11 and the pressure plate 10. When the pressure plate 10 moves upward, the stopper 11 contacts the push rod 21 and applies pressure to the push rod 21. The push rod 21 pushes the circular sleeve 19 and the short tube 9, so that under pressure and reaction force, the connecting port 18 moves out of the accommodating port 17 and enters the inner cavity of the pipe 8. The regeneration liquid in the solution barrel 4 enters the short tube 9 through the pipe 8 and the connecting port 18 and flows out. Under the reaction force, the stopper 11 enters the inside of the slot 22 from the top opening of the slot 22, so that the regeneration liquid flowing out of the pipe 8 enters the slot 22 and flows out to the inner cylinder 5. In this process, the first spring 20 and the second spring 23 are contracted by force to generate a reaction force.

[0031] like Figures 1 to 7As shown, specifically, the regeneration liquid in the spray hood 6 and the rotating hood 7 is fixedly connected to the rotating hood 7 through the bottom end of the threaded rod 13, and the rotating hood 7 is rotatably connected to the inner cylinder 5. A plurality of micropores 16 are provided on the rotating hood 7 and the spray hood 6, and the regeneration liquid entering the inner cylinder 5 gradually fills it, and the regeneration liquid in the inner cylinder 5 enters the rotating hood 7 and enters the spray hood 6 through the drain port 15. At this time, the regeneration liquid in the rotating hood 7 and the spray hood 6 flows out through the micropores 16 and penetrates into the resin, and regenerates the resin in the exchange device body 1, and then the reverse driving motor 12 causes the pressing plate 10 to move downward, and the stopper 11 gradually separates from the push rod 2 during the downward movement of the pressing plate 10. 1, so that the stopper 11 and the short tube 9 are reset under the reaction force of the first spring 20 and the second spring 23, the connecting port 18 on the short tube 9 re-enters the receiving port 17, the regeneration liquid in the solution barrel 4 does not flow out, the stopper 11 is re-embedded into the top opening of the slot 22, and the pressing plate 10 continuously moves downward to squeeze the regeneration liquid in the inner cylinder 5, thereby accelerating the speed of the regeneration liquid being discharged outward from the micropores 16, thereby accelerating the regeneration rate, and the rotation of the threaded rod 13 will drive the rotating cover 7 at the bottom to rotate, so that the rotating cover 7 can evenly spray the regeneration liquid on the resin at the bottom, preventing the rotating cover 7 from spraying the regeneration liquid on only a fixed place and affecting the resin regeneration efficiency.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0033] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. An ion exchange device for treating strontium and cesium, comprising an exchange device body (1), characterized in that: An isolation net (2) and an isolation net cover (3) are provided in the exchange device body (1), and a solution barrel (4) is provided on the top of the exchange device body (1); The exchange device body (1) is provided with a spray assembly for improving regeneration efficiency, the spray assembly comprising an inner cylinder (5), a spray cover (6) being fixedly mounted on the inner cylinder (5), and a rotating cover (7) being provided at the bottom end of the inner cylinder (5); It also includes a switch assembly arranged between the solution barrel (4) and the inner cylinder (5) for controlling the discharge of the regenerated liquid, the switch assembly including a pipe (8) arranged between the solution barrel (4) and the inner cylinder (5), a short pipe (9) being arranged in the pipe (8), a pressure plate (10) being arranged in the inner cylinder (5), and a stopper (11) being arranged in the pressure plate (10).

2. An ion exchange device for treating strontium and cesium according to claim 1, characterized in that: A motor (12) is fixedly mounted on the exchange device body (1), a threaded rod (13) is fixedly connected to the output shaft of the motor (12), and the threaded rod (13) is threadedly connected to the pressure plate (10).

3. An ion exchange device for treating strontium and cesium according to claim 1, characterized in that: A limiting groove (14) is provided in the inner cylinder (5), and the pressing plate (10) is slidably connected in the limiting groove (14). A liquid discharge port (15) connected to the spray hood (6) is provided in the inner cylinder (5).

4. An ion exchange device for treating strontium and cesium according to claim 2, characterized in that: The bottom end of the threaded rod (13) is fixedly connected to the rotating cover (7), and the rotating cover (7) is rotatably connected to the inner cylinder (5). A plurality of micro holes (16) are provided on the rotating cover (7) and the spray cover (6).

5. An ion exchange device for treating strontium and cesium according to claim 1, characterized in that: The pipeline (8) is provided with a receiving opening (17), the short tube (9) is slidably connected in the receiving opening (17), and the short tube (9) is in close contact with the inner wall of the receiving opening (17).

6. An ion exchange device for treating strontium and cesium according to claim 5, characterized in that: The short tube (9) is provided with a connection port (18) that is in communication with the interior, and the connection port (18) is located in the receiving port (17). A circular plate is fixedly mounted in the inner cylinder (5), and the pipeline (8) is fixedly mounted on the circular plate.

7. An ion exchange device for treating strontium and cesium according to claim 1, characterized in that: A round sleeve (19) is fixedly mounted on the bottom end of the short tube (9), a first spring (20) is fixedly connected between the round sleeve (19) and the pipe (8), and a push rod (21) is fixedly connected to the round sleeve (19).

8. An ion exchange device for treating strontium and cesium according to claim 1, characterized in that: A notch (22) is provided in the pressure plate (10), and the stopper (11) is embedded in the top opening of the notch (22), and a second spring (23) is fixedly connected between the stopper (11) and the pressure plate (10).

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