Radioisotope wastewater treatment device

Abstract

According to the radioactive isotope wastewater treatment device, a top ring is fixedly arranged at the top of a filter cartridge, a plurality of supporting rods are arranged at the lower end of the top ring, a bottom ring is fixedly arranged at the bottom ends of the supporting rods, the top ring makes contact with the bottom end of a top tank, the bottom ring makes contact with the top end of a bottom tank, and moving blocks, guide blocks and a starting motor are symmetrically arranged at the bottom of the top tank; the top tank can ascend by a certain distance under the action of the threaded structure, the guide block can ascend along the guide rod at the moment, the filter cartridge between the top tank and the bottom tank can be taken away, a plurality of screws do not need to be operated due to the fact that the top tank is too long, and the time consumed in the process of replacing the filter plate is short. Further, the filtering efficiency of the radioactive isotope wastewater can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a radioactive isotope wastewater treatment device. Background Technique

[0002] Radioactive isotope wastewater mainly comes from various wastewater guide blocks discharged during the operation of nuclear power plants, the pretreatment of nuclear fuel, the post-treatment of spent fuel, and the application of radioactive isotopes. Such wastewater may contain various radioactive nuclides, such as 58Co, 60Co, 4Cs, 7Cs, 90Sr, 3H, etc. Moreover, the types, concentrations, acidity, and other chemical components of radioactive nuclides contained in different wastewaters vary greatly. During the treatment of radioactive isotope wastewater, it is necessary to filter it. Filtration is an important step in the treatment of radioactive isotope wastewater, mainly used to remove suspended particles and precipitates in the wastewater;

[0003] When the existing radioactive isotope wastewater filtration device is in use, the replacement method of the filter plate is mostly manual operation. Since the filter plate is mostly fixed inside the device by screws, when it needs to be replaced, multiple screws at the filter plate need to be loosened, which takes too long during the replacement process of the filter plate and will reduce the filtration efficiency of radioactive isotope wastewater. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a radioactive isotope wastewater treatment device.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: a radioactive isotope wastewater treatment device, including a top tank, a bottom tank, and a filter cylinder. The top tank is located above the bottom tank. The top of the filter cylinder is fixedly provided with a top ring. The lower end of the top ring is provided with a plurality of support rods. The bottom ends of the support rods are fixedly provided with a bottom ring. The top ring contacts the bottom end of the top tank. The bottom ring contacts the top end of the bottom tank. The bottom of the top tank is symmetrically provided with moving blocks and guide blocks. The two sides of the bottom tank are symmetrically provided with motors and guide rods. The guide rods penetrate through the guide blocks. The output end of the motor is provided with a screw rod that penetrates through the moving blocks. The screw rod is threadedly connected to the moving blocks.

[0008] Further, an improvement of the utility model is that the motor adopts a servo motor.

[0009] To ensure the sealing performance at the docking part between the top ring and the bottom of the top tank, an improvement of the utility model is that the top of the top ring is provided with a sealing ring that contacts the bottom of the top tank.

[0010] In order to prevent the wastewater from leaking out, the improvement of the present utility model is that a protective sleeve located on the peripheral side of the filter cylinder is provided on the inner ring of the bottom ring.

[0011] In order to make the installation of the filter cylinder more firm, the improvement of the present utility model is that a plurality of positioning grooves are provided on the top of the bottom tank, and a plurality of positioning blocks cooperating with the positioning grooves are provided at the lower end of the bottom ring.

[0012] Furthermore, the improvement of the present utility model is that a clamping groove is provided on the inner wall of the positioning groove, a cavity is provided inside the positioning block, a spring is provided inside the cavity, and a clamping block cooperating with the clamping groove is provided at one end of the spring.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present utility model provides a radioactive isotope wastewater treatment device, which has the following beneficial effects:

[0015] For this radioactive isotope wastewater treatment device, when the motor is started, the screw can rotate. Through the action of the thread structure, the top tank can rise a certain distance. At this time, the guide block will rise along the guide rod, and then the filter cylinder between the top tank and the bottom tank can be taken away. In this process, it is not necessary to operate multiple screws, and the time consumed during the replacement of the filter plate is short, thereby improving the filtration efficiency of radioactive isotope wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a top-down three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is the present utility model Figure 1 side view;

[0018] Figure 3 is an internal structural schematic diagram of the top tank and the bottom tank in the present utility model;

[0019] Figure 4 is a matching structural schematic diagram of the positioning block and the positioning groove in the present utility model;

[0020] In the figure: 1, top tank; 2, bottom tank; 3, protective sleeve; 4, bottom ring; 5, top ring; 6, support rod; 7, filter cylinder; 8, motor; 9, moving block; 10, screw; 11, guide rod; 12, guide block; 13, positioning groove; 14, positioning block; 15, clamping groove; 16, clamping block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 , a radioactive isotope wastewater treatment device of the present invention includes a top tank 1, a bottom tank 2, and a filter cylinder 7. The top tank 1 is located above the bottom tank 2. The top of the filter cylinder 7 is fixedly provided with a top ring 5. The lower end of the top ring 5 is provided with a plurality of support rods 6. The bottom ends of the support rods 6 are fixedly provided with a bottom ring 4. The top ring 5 contacts the bottom end of the top tank 1. The bottom ring 4 contacts the top end of the bottom tank 2. The bottom of the top tank 1 is symmetrically provided with a moving block 9 and a guiding block 12. The two sides of the bottom tank 2 are symmetrically provided with a motor 8 and a guiding rod 11. The guiding rod 11 penetrates through the guiding block 12. The output end of the motor 8 is provided with a screw rod 10 that penetrates through the moving block 9. The screw rod 10 is threadedly connected to the moving block 9;

[0023] When this structure is in use, the radioactive isotope wastewater is added into the filter cylinder 7 from the bottom of the top tank 1. The filter cylinder 7 can filter the wastewater. The filtered wastewater is discharged to a designated position at the bottom of the bottom tank 2. When it is necessary to clean the filter cylinder 7, start the motor 8, which can make the screw rod 10 rotate. Through the action of the threaded structure, the top tank 1 can be lifted by a certain distance. At this time, the guiding block 12 will rise along the guiding rod 11. Then the filter cylinder 7 between the top tank 1 and the bottom tank 2 can be taken away. This process does not require operating multiple screws and takes a short time during the replacement of the filter plate, thereby improving the filtration efficiency of the radioactive isotope wastewater;

[0024] After the filter cylinder 7 is assembled, start the motor 8 to reset the top tank 1. At this time, the bottom of the top tank 1 can provide a pressure to the top ring 5, enabling the filter cylinder 7 to be placed more firmly between the top tank 1 and the bottom tank 2.

[0025] Furthermore, the motor 8 can be a servo motor.

[0026] If the sealing performance between the top ring 5 and the bottom of the top tank 1 is insufficient, it is easy for the wastewater to leak at the top ring 5. The top end of the top ring 5 is provided with a sealing ring that contacts the bottom of the top tank 1. When the bottom of the top tank 1 contacts the top ring 5, the sealing ring will be squeezed, thus ensuring the sealing performance at the docking part between the top ring 5 and the bottom of the top tank 1 and making it not easy for the wastewater to leak at the top ring 5.

[0027] Furthermore, a protective sleeve 3 is provided on the inner circle of the bottom ring 4 and is located on the peripheral side of the filter cartridge 7. By providing the protective sleeve 3, a protective effect can be provided for the filter cartridge 7, and wastewater leakage can be prevented.

[0028] The bottom ring 4 lacks a positioning structure at the top of the bottom tank 2, which will cause the filter cartridge 7 to be installed insecurely. A plurality of positioning grooves 13 are provided at the top of the bottom tank 2, and a plurality of positioning blocks 14 that cooperate with the positioning grooves 13 are provided at the lower end of the bottom ring 4. A clamping groove 15 is provided on the inner wall of the positioning groove 13, a cavity is provided inside the positioning block 14, a spring is provided inside the cavity, and a clamping block 16 that cooperates with the clamping groove 15 is provided at one end of the spring. Through the cooperation of the clamping block 16 and the clamping groove 15, the positioning block 14 can be made more secure in the positioning groove 13. Through the cooperation of the positioning block 14 and the positioning groove 13, a positioning structure can be provided for the bottom ring 4 at the top of the bottom tank 2, and the filter cartridge 7 can be installed more securely. The clamping block 16 can be an arc-shaped structure. When the pulling force provided for the filter cartridge 7 is greater than the elastic force of the spring, the clamping block 16 can compress the spring, so that the positioning block 14 can be pulled out of the positioning groove 13. The structure is simple and the operation is convenient.

[0029] In the description of this article, it should be noted that relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A radioactive isotope wastewater treatment device, characterized in that: It includes a top tank (1), a bottom tank (2) and a filter cartridge (7). The top tank (1) is located above the bottom tank (2). A top ring (5) is fixedly arranged at the top of the filter cartridge (7). A plurality of support rods (6) are arranged at the lower end of the top ring (5). A bottom ring (4) is fixedly arranged at the bottom end of the support rods (6). The top ring (5) contacts the bottom end of the top tank (1). The bottom ring (4) contacts the top end of the bottom tank (2). Moving blocks (9) and guide blocks (12) are symmetrically arranged at the bottom of the top tank (1). Motors (8) and guide rods (11) are symmetrically arranged on both sides of the bottom tank (2). The guide rods (11) penetrate through the guide blocks (12). A screw rod (10) penetrating through the moving block (9) is arranged at the output end of the motor (8). The screw rod (10) is in threaded connection with the moving block (9).

2. The radioactive isotope wastewater treatment device according to claim 1, wherein: The motor (8) is a servo motor.

3. A radioactive isotope wastewater treatment device according to claim 2, characterized in that: A sealing ring contacting the bottom of the top tank (1) is arranged at the top end of the top ring (5).

4. A radioactive isotope wastewater treatment device according to claim 3, wherein: A protective sleeve (3) located on the circumferential side of the filter cartridge (7) is arranged on the inner ring of the bottom ring (4).

5. A radioactive isotope wastewater treatment device according to claim 4, characterized in that: A plurality of positioning grooves (13) are arranged at the top of the bottom tank (2). A plurality of positioning blocks (14) cooperating with the positioning grooves (13) are arranged at the lower end of the bottom ring (4).

6. The radioactive isotope wastewater treatment device according to claim 5, characterized in that: A clamping groove (15) is arranged on the inner wall of the positioning groove (13). A cavity is arranged inside the positioning block (14). A spring is arranged inside the cavity. A clamping block (16) cooperating with the clamping groove (15) is arranged at one end of the spring.

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