A membrane treatment device for the enrichment and concentration of iodine-containing waste water

Abstract

The utility model relates to a kind of membrane processing device for enrichment and concentration of iodine-containing wastewater, including purification tower, and the water inlet cover of the one side of being arranged in the purification tower, support ring is fixedly installed in the purification tower and membrane processing component is slidably installed on the support ring, the abutment of the membrane processing component and support ring has multiple springs, the utility model: adoption integration collaborative cleaning mechanism, the synchronous action of centrifugal pump impeller rotation and annular cleaning brush around membrane processing component is realized by motor drive, while the circumferential cleaning of brush to membrane surface, centrifugal pump can instantaneously transport cleaning water source for nozzle, form the double cleaning mechanism of mechanical cleaning and high pressure flushing;And membrane processing component is synchronously driven to carry out up-down low-frequency vibration in cleaning process, the adsorption adhesion of pollutant and membrane surface is destroyed by vibration effect, substantially improve pollutant stripping efficiency, effectively avoid membrane component blockage.

Description

Technical Field

[0001] This utility model relates to the technical field of iodine-containing wastewater purification and treatment, specifically a membrane treatment device for enriching and concentrating iodine-containing wastewater. Background Technology

[0002] Iodine-containing wastewater refers to wastewater containing a certain concentration of iodides or iodates generated during industrial production or specific activities. Its main sources include natural gas extraction, chemical production, electronics industry, and nuclear medicine. Iodine in this type of wastewater usually exists in the form of iodide ions, iodates, or organic iodine. Direct discharge would not only waste precious iodine resources but also pose potential risks to the environment and human health. Therefore, it needs to be specially treated and recycled.

[0003] Membrane treatment is a selective separation technology based on porous membrane materials. It utilizes the pore size sieving, charge interaction, or affinity adsorption properties of membranes to selectively permeate or retain specific substances in a mixed system under the driving force of pressure difference, concentration difference, etc., thereby achieving the physical / physicochemical treatment process of separating and purifying target substances or purifying wastewater. It has the characteristics of high separation efficiency, low energy consumption, simple operation, no phase change, and environmental friendliness. In the treatment of iodine-containing wastewater, it can be used for the enrichment and concentration of iodine or the deep purification of wastewater. Common types include ultrafiltration, nanofiltration, reverse osmosis, and electrodialysis.

[0004] In scenarios such as iodine-containing wastewater treatment, which are prone to membrane fouling, the cleaning systems of existing membrane treatment devices are mostly designed with separate functions. Brush cleaning and high-pressure rinsing rely on multiple independent drive mechanisms, resulting in structural redundancy, high energy consumption, and poor coordination, making it impossible to form efficient linkage cleaning. Even so, the cleaning methods are limited to single mechanical scraping or high-pressure rinsing, making it difficult to completely remove iodide deposits and stubborn dirt on the surface of membrane modules, which can easily cause membrane pore blockage. At the same time, there are cleaning dead spots, resulting in incomplete cleaning. Utility Model Content

[0005] The purpose of this invention is to provide a membrane treatment device for enriching and concentrating iodine-containing wastewater, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A membrane treatment device for enriching and concentrating iodine-containing wastewater includes a purification tower and an inlet cover disposed on one side of the purification tower. A support ring is fixedly installed inside the purification tower, and a membrane treatment component is slidably installed on the support ring. Multiple springs abut against the membrane treatment component and the support ring. A connecting frame and a driving device connected to one end of the connecting frame are connected to the top of the purification tower. A centrifugal water pump and an inlet pipe disposed at one end of the centrifugal water pump are connected to one end of the centrifugal water pump. An outlet pipe is rotatably installed at the bottom of the centrifugal water pump. A transmission mechanism is fixedly sleeved on the outer periphery of the outlet pipe. A cleaning mechanism is connected to the bottom of the outlet pipe, and a vibration component is connected to the bottom of the outlet pipe.

[0008] The membrane treatment device for enriching and concentrating iodine-containing wastewater as described above: the driving device includes a drive motor connected to one end of the connecting frame and a rotating shaft connected to the output shaft of the drive motor, the rotating shaft being fixed to the impeller inside the centrifugal water pump.

[0009] The membrane treatment device for enriching and concentrating iodine-containing wastewater as described above: the transmission mechanism includes a bevel gear set connected to one end of the rotating shaft and a transmission rod connected to the bevel gear set, the transmission rod being rotatably mounted on the connecting frame.

[0010] The membrane treatment device for enriching and concentrating iodine-containing wastewater as described above: the bottom end of the transmission rod is fixedly fitted with a driving gear and a driven gear meshing on one side of the driving gear, and the driven gear is fixedly fitted outside the outlet pipe.

[0011] The membrane treatment device for enriching and concentrating iodine-containing wastewater as described above: the cleaning mechanism includes a water guide pipe connected to the bottom of the outlet pipe and a cleaning brush plate connected to the bottom of the water guide pipe, the cleaning brush plate being in contact with the surface of the membrane treatment component.

[0012] The membrane treatment device for enriching and concentrating iodine-containing wastewater as described above: a high-pressure nozzle is connected to the cleaning brush plate, and the high-pressure nozzle is connected to the water guide pipe.

[0013] The membrane treatment device for enriching and concentrating iodine-containing wastewater as described above: the vibration component includes a convex tooth connected to one end of the water guide pipe and an annular tooth that cooperates with the convex tooth. A connecting sleeve is connected to the outside of the annular tooth, and the connecting sleeve is connected to the top of the membrane treatment component.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This device employs an integrated collaborative cleaning mechanism. The centrifugal pump impeller rotates synchronously with the annular cleaning brush surrounding the membrane treatment component via a motor drive. While the brush performs circumferential cleaning on the membrane surface, the centrifugal pump can simultaneously deliver clean water to the nozzles, forming a dual cleaning mechanism of mechanical cleaning and high-pressure rinsing. Furthermore, during the cleaning process, the membrane treatment component is simultaneously driven to vibrate up and down at low frequencies. This vibration breaks down the adsorption and adhesion between pollutants and the membrane surface, significantly improving the pollutant removal efficiency and effectively preventing membrane component clogging.

[0016] The collaborative design in this utility model eliminates the need for multiple additional drive devices, simplifies the overall structural layout, and reduces equipment energy consumption and maintenance costs. At the same time, the three-dimensional linkage of mechanical cleaning, high-pressure flushing, and low-frequency vibration enhances the comprehensiveness of cleaning, making it particularly suitable for the treatment needs of scenarios that are prone to membrane fouling, such as iodine-containing wastewater. Attached Figure Description

[0017] Figure 1 A side view schematic diagram of a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0018] Figure 2 A front view schematic diagram of a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0019] Figure 3 A rear view schematic diagram of a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0020] Figure 4 A schematic diagram of the cross-sectional structure of the purification tower in a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0021] Figure 5 A cross-sectional schematic diagram of the purification tower in a membrane treatment device for enriching and concentrating iodine-containing wastewater from another angle.

[0022] Figure 6 A front view schematic diagram of the purification tower in a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0023] Figure 7 A schematic diagram of the drive equipment, centrifugal pump, transmission mechanism, and cleaning mechanism in a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0024] Figure 8 A schematic diagram of the drive equipment, centrifugal pump, and transmission mechanism in a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0025] Figure 9 A side view schematic diagram of the drive equipment, centrifugal pump, and transmission mechanism in a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0026] Figure 10A schematic diagram of the cleaning brush plate and high-pressure nozzle structure in a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0027] Figure 11 A schematic diagram of the convex and annular tooth structures in a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0028] Figure 12 A schematic diagram of the convex and annular toothed structures in a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0029] Figure 13 A schematic diagram of the cross-sectional structure of the support ring, membrane treatment components, and spring in a membrane treatment device for enriching and concentrating iodine-containing wastewater.

[0030] Figure 14 A schematic diagram of the support ring, membrane treatment components, and spring in a membrane treatment device for enriching and concentrating iodine-containing wastewater, viewed from below.

[0031] In the diagram: 1. Purification tower; 2. Inlet cover; 3. Support ring; 4. Membrane treatment component; 5. Spring; 6. Connecting frame; 7. Drive motor; 8. Rotating shaft; 9. Centrifugal water pump; 10. Inlet pipe; 11. Outlet pipe; 12. Bevel gear set; 13. Drive gear; 14. Driven gear; 15. Water guide pipe; 16. Cleaning brush; 17. High-pressure nozzle; 18. Convex tooth; 19. Ring tooth; 20. Connecting sleeve. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Please see Figures 1-14 As an embodiment of this utility model, the membrane treatment device for enriching and concentrating iodine-containing wastewater includes a purification tower 1 and an inlet cover 2 disposed on one side of the purification tower 1. A support ring 3 and a membrane treatment component 4 slidably mounted on the support ring 3 are fixedly installed inside the purification tower 1. A plurality of springs 5 ​​are abutting between the membrane treatment component 4 and the support ring 3. A connecting frame 6 and a driving device connected to one end of the connecting frame 6 are connected to the top of the purification tower 1. A centrifugal water pump 9 and an inlet 10 disposed at one end of the centrifugal water pump 9 are connected to one end of the centrifugal water pump 9. An outlet pipe 11 is rotatably mounted on the bottom of the centrifugal water pump 9. A transmission mechanism is fixedly sleeved on the outer periphery of the outlet pipe 11. A cleaning mechanism is connected to the bottom of the outlet pipe 11. A vibration component is connected to the bottom of the outlet pipe 11.

[0034] In this embodiment, iodine-containing wastewater enters the interior of the purification tower 1 through the inlet cover 2. Subsequently, the membrane treatment component 4 intercepts iodine ions, organic iodine compounds, or other pollutants in the iodine-containing wastewater, thereby achieving the separation of target substances. When the membrane treatment component 4 needs to be cleaned, the impeller of the centrifugal water pump 9 is rotated by the motor, causing the cleaning mechanism to perform circumferential cleaning around the membrane surface. At the same time, the centrifugal water pump 9 can immediately supply clean water to the cleaning mechanism, forming a dual cleaning mechanism of mechanical cleaning and high-pressure flushing. During the cleaning process, the motor will synchronously drive the vibration component to vibrate the membrane component up and down at low frequency. Through the vibration, the adsorption and adhesion between pollutants and the membrane surface will be destroyed, greatly improving the pollutant removal efficiency and effectively avoiding membrane component clogging.

[0035] As a further embodiment of this utility model, the driving device includes a drive motor 7 connected to one end of the connecting frame 6 and a rotating shaft 8 connected to the output shaft of the drive motor 7, wherein the rotating shaft 8 is fixed to the impeller inside the centrifugal water pump 9.

[0036] In this embodiment, by starting the drive motor 7 to drive the impeller of the centrifugal water pump 9 to rotate continuously, clean water from the outside can be drawn in an instant.

[0037] As a further embodiment of this utility model, the transmission mechanism includes a bevel gear set 12 connected to one end of the rotating shaft 8 and a transmission rod connected to the bevel gear set 12, the transmission rod being rotatably mounted on the connecting frame 6.

[0038] In this embodiment, a bevel gear set 12 is fixedly sleeved in the middle section of the output shaft of the drive motor 7, and the transmission rod is rotated through the bevel gear set 12.

[0039] As a further embodiment of this utility model, the bottom end of the transmission rod is fixedly sleeved with a driving gear 13 and a driven gear 14 meshing on one side of the driving gear 13, and the driven gear 14 is fixedly sleeved on the outside of the water outlet pipe 11.

[0040] In this embodiment, the transmission rod can drive the lower drive gear 13 and the driven gear 14 on one side to rotate, thereby driving the water outlet pipe 11 at the bottom of the centrifugal water pump 9 to rotate. The centrifugal water pump 9 and the water outlet pipe 11 at its bottom are rotatably connected.

[0041] As a further embodiment of this utility model, the cleaning mechanism includes a water guide pipe 15 connected to the bottom of the water outlet pipe 11 and a cleaning brush plate 16 connected to the bottom of the water guide pipe 15, wherein the cleaning brush plate 16 is in contact with the surface of the membrane treatment component 4.

[0042] In this embodiment, the rotation of the water outlet pipe 11 will drive the water guide pipe 15 at one end to rotate, and when the water guide pipe 15 rotates, it will drive the cleaning brush plate 16 to perform circumferential cleaning around the membrane surface.

[0043] As a further embodiment of this utility model, a high-pressure nozzle 17 is connected to the cleaning brush plate 16, and the high-pressure nozzle 17 is connected to the water guide pipe 15.

[0044] In this embodiment, the high-pressure nozzle 17 and the cleaning brush 16 move synchronously to spray cleaning water onto the membrane surface, achieving a dual cleaning mechanism of mechanical cleaning and high-pressure rinsing.

[0045] As a further embodiment of this utility model, the vibration assembly includes a convex tooth 18 connected to one end of the water guide pipe 15 and an annular tooth 19 that cooperates with the convex tooth 18. A connecting sleeve 20 is connected to the outside of the annular tooth 19, and the connecting sleeve 20 is connected to the top of the membrane treatment assembly 4.

[0046] In this embodiment, the rotation of the water pipe 15 drives the convex tooth 18 to rotate. When the convex tooth 18 rotates, it will engage with the ring tooth 19 below in a squeezing manner. During the rotation of the convex tooth 18, the tooth edge will contact the tooth edge of the ring tooth 19. As the convex tooth 18 continues to rotate, it will drive the ring tooth 19 to move downward slightly. During this process, the connecting sleeve 20 will drive the membrane treatment component 4 to move downward and compress the spring 5. Then, the tooth of the convex tooth 18 will rotate into the gap of the ring tooth 19, thereby causing the membrane treatment component 4 to return to its original position. One rotation of the convex tooth 18 will drive the ring tooth 19 to move up and down multiple times, thereby causing the membrane treatment component 4 to vibrate at a low frequency. Through the vibration, the adsorption and adhesion between the pollutants and the membrane surface will be destroyed, which will greatly improve the pollutant removal efficiency and effectively prevent the membrane component from clogging.

[0047] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A membrane treatment device for enriching and concentrating iodine-containing wastewater, comprising a purification tower (1) and an inlet cover (2) disposed on one side of the purification tower (1), characterized in that, The purification tower (1) is fixedly installed with a support ring (3) and a membrane treatment component (4) slidably installed on the support ring (3). Multiple springs (5) abut against the membrane treatment component (4) and the support ring (3). The top of the purification tower (1) is connected to a connecting frame (6) and a driving device connected to one end of the connecting frame (6). One end of the connecting frame (6) is connected to a centrifugal water pump (9) and an inlet (10) set at one end of the centrifugal water pump (9). A water outlet pipe (11) is rotatably installed at the bottom of the centrifugal water pump (9). A transmission mechanism is fixedly sleeved on the outer periphery of the water outlet pipe (11). A cleaning mechanism is connected to the bottom of the water outlet pipe (11). A vibration component is connected to the bottom of the water outlet pipe (11).

2. The membrane treatment device for enriching and concentrating iodine-containing wastewater according to claim 1, characterized in that, The driving device includes a drive motor (7) connected to one end of the connecting frame (6) and a rotating shaft (8) connected to the output shaft of the drive motor (7). The rotating shaft (8) is fixed to the impeller inside the centrifugal water pump (9).

3. The membrane treatment device for enriching and concentrating iodine-containing wastewater according to claim 2, characterized in that, The transmission mechanism includes a bevel gear set (12) connected to one end of the rotating shaft (8) and a transmission rod connected to the bevel gear set (12). The transmission rod is rotatably mounted on the connecting frame (6).

4. The membrane treatment device for enriching and concentrating iodine-containing wastewater according to claim 3, characterized in that, The bottom end of the transmission rod is fixedly fitted with a drive gear (13) and a driven gear (14) meshing on one side of the drive gear (13). The driven gear (14) is fixedly fitted on the outside of the water outlet pipe (11).

5. The membrane treatment device for enriching and concentrating iodine-containing wastewater according to claim 4, characterized in that, The cleaning mechanism includes a water guide pipe (15) connected to the bottom of the water outlet pipe (11) and a cleaning brush plate (16) connected to the bottom of the water guide pipe (15), the cleaning brush plate (16) being in contact with the surface of the membrane treatment assembly (4).

6. The membrane treatment device for enriching and concentrating iodine-containing wastewater according to claim 5, characterized in that, A high-pressure nozzle (17) is connected to the cleaning brush plate (16), and the high-pressure nozzle (17) is connected to the water guide pipe (15).

7. A membrane treatment device for enriching and concentrating iodine-containing wastewater according to claim 6, characterized in that, The vibration assembly includes a convex tooth (18) connected to one end of the water pipe (15) and an annular tooth (19) that cooperates with the convex tooth (18). A connecting sleeve (20) is connected to the outside of the annular tooth (19), and the connecting sleeve (20) is connected to the top of the membrane treatment assembly (4).

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