Electroplating cadmium-containing wastewater treatment device

Abstract

The utility model discloses an electroplating cadmium-containing wastewater treatment device which comprises a first filter cartridge, a rotatable second filter cartridge is arranged in an inner cavity of the first filter cartridge, the second filter cartridge can rotate through a driving assembly, a plurality of groups of filter screens are arranged on the outer wall of the second filter cartridge at equal intervals, and a sealing piece is rotationally arranged in an inner cavity of the second filter cartridge in a sealed mode. A through hole is formed in the position, corresponding to the filter screen, of the outer wall of the sealing part, the sealing part is connected with the output end of the first motor, the first motor is installed at the top end of the first cover plate, and the first cover plate is in sealed threaded connection with the second filter cartridge. After precipitates are generated in the reaction, the first motor is started, the sealing piece is driven to rotate, the through hole is overlapped with the filter screen, the filter screen is opened, at the moment, the driving assembly is used for driving the second filter cylinder to rotate in an accelerated mode, and discharging of the cadmium-containing wastewater can be accelerated under the action of centrifugal force.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a device for treating cadmium-containing electroplating wastewater. Background Technique

[0002] The device for treating cadmium-containing electroplating wastewater is a comprehensive wastewater treatment system, which combines physical, chemical and biological treatment technologies to remove suspended solids, heavy metal ions (such as cadmium) and other harmful substances in the wastewater, ensuring that the wastewater meets the environmental protection discharge standards.

[0003] When treating cadmium-containing wastewater, by adding chemical agents (such as coagulants, oxidants, reductants, etc.), the precipitation and decomposition of harmful substances in the wastewater are promoted. And for the wastewater treatment device, generally, a stirring member is used to accelerate the reaction efficiency, and then the precipitate is filtered by a filter screen. However, the stirring member is not effectively combined with the filter screen, resulting in a relatively low separation efficiency of the precipitate and the wastewater. Therefore, we propose a device for treating cadmium-containing electroplating wastewater. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for treating cadmium-containing electroplating wastewater to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A device for treating cadmium-containing electroplating wastewater, including a first filter cylinder, a rotatable second filter cylinder is arranged in the inner cavity of the first filter cylinder, the second filter cylinder can be rotated by a driving component, a plurality of groups of filter screens are equidistantly arranged on the outer wall of the second filter cylinder, a sealing member is rotatably arranged in the inner cavity of the second filter cylinder in a sealed manner, through holes are arranged on the outer wall of the sealing member corresponding to the filter screens, the sealing member is connected with the output end of a first motor, the first motor is installed on the top end of a first cover plate, and the first cover plate is in sealed threaded connection with the second filter cylinder.

[0006] Preferably, water inlets are respectively and throughly arranged at the top end of the sealing member and the top end of the first cover plate.

[0007] Preferably, a rotating rod is integrally formed at the bottom end of the second filter cylinder, the rotating rod is in sealed rotational connection with the first filter cylinder, and the bottom end of the rotating rod is connected with the driving component.

[0008] Preferably, the driving component includes a first belt pulley, a belt, a second belt pulley and a second motor. The first belt pulley is installed at the bottom end of the rotating rod, the first belt pulley is connected with the second belt pulley through the belt, the second belt pulley is connected with the output end of the second motor, and the second motor is installed on one side of the outer wall of the first filter cylinder.

[0009] Preferably, a drain port is arranged at the lower end of the outer wall of the first filter cylinder, and a support member is installed at the bottom end of the first filter cylinder.

[0010] Preferably, the top end of the first filter cartridge can be sealed by a second cover plate, and a handle is installed at the top end of the second cover plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By starting the first motor of the present utility model, the closing member is driven to rotate, so that the through hole is misaligned with the filter screen, and the filter screen can be closed. At this time, by driving the second filter cartridge to rotate uniformly through the driving component, the cadmium-containing wastewater inside can be driven to flow, accelerating the reaction efficiency between the wastewater and the chemical agent. After the reaction generates precipitates, start the first motor to drive the closing member to rotate, so that the through hole coincides with the filter screen, and the filter screen is opened. At this time, use the driving component to drive the second filter cartridge to rotate at an accelerated speed. Under the action of centrifugal force, the discharge of cadmium-containing wastewater can be accelerated, and the precipitates are left inside the second filter cartridge. And when the closing member rotates, the filter screen can be scraped by the hole position formed by the through hole, which can effectively prevent the filter screen from being blocked. Compared with the prior art, while accelerating the reaction efficiency, the stirring member formed by the second filter cartridge and the filter screen can improve the separation efficiency of the precipitates and the wastewater.

[0013] 2. By starting the second motor of the present utility model, the second belt pulley is driven to rotate. Through the transmission of the belt, the first belt pulley is driven to rotate, and the rotating rod rotates, so that the second filter cartridge can be rotated. The rotating rod can leave a part of the space between the second filter cartridge and the first filter cartridge for storing the discharged wastewater.

[0014] 3. The first cover plate of the present utility model is in sealed threaded connection with the second filter cartridge and can be disassembled. Water inlets are respectively and throughly opened at the top end of the closing member and the top end of the first cover plate for adding wastewater and chemical agents. The water inlet on the first cover plate can be closed by a plugging member in the prior art, which will not affect the rotation of the closing member. The treated wastewater is discharged through the drain port. The support member is used to support the first filter cartridge and will not affect the installation of the driving component. The first filter cartridge can be closed by using the second cover plate to prevent the discharged wastewater from flowing out. The installed handle facilitates the opening and closing of the second cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded view of the overall structure of the present utility model;

[0016] Figure 2 is a cross-sectional view of the overall structure of the present utility model;

[0017] Figure 3 is a schematic diagram of the overall structure of the present utility model.

[0018] In the figure: 1. First filter cartridge, 2. Second filter cartridge, 3. Filter screen, 4. Sealing member, 5. Through hole, 6. First motor, 7. First cover plate, 8. Rotating rod, 9. First pulley, 10. Belt, 11. Second pulley, 12. Second motor, 13. Water inlet, 14. Drain outlet, 15. Support member, 16. Second cover plate, 17. Handle. Specific implementation mode

[0019] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1

[0021] Please refer to Figures 1-3 As shown, the present invention provides a cadmium-containing electroplating wastewater treatment device, including a first filter cartridge 1. A rotatable second filter cartridge 2 is arranged in the inner cavity of the first filter cartridge 1. The second filter cartridge 2 can be rotated through a driving assembly. A plurality of groups of filter screens 3 are equidistantly arranged on the outer wall of the second filter cartridge 2. A sealing member 4 is rotatably arranged in the inner cavity of the second filter cartridge 2 in a sealed manner. Through holes 5 are formed in the outer wall of the sealing member 4 corresponding to the filter screens 3. The sealing member 4 is connected to the output end of a first motor 6. The first motor 6 is installed at the top of a first cover plate 7. The first cover plate 7 is hermetically and threadedly connected to the second filter cartridge 2.

[0022] In this embodiment, by starting the first motor 6, the sealing member 4 is driven to rotate, so that the through holes 5 are misaligned with the filter screens 3, and thus the filter screens 3 can be sealed. At this time, by driving the second filter cartridge 2 to rotate at a constant speed through the driving assembly, the cadmium-containing wastewater inside can be driven to flow, accelerating the reaction efficiency between the wastewater and the chemical agent. After the reaction generates precipitates, the first motor 6 is started to drive the sealing member 4 to rotate, so that the through holes 5 coincide with the filter screens 3, and the filter screens 3 are opened. At this time, by driving the second filter cartridge 2 to rotate at an accelerated speed through the driving assembly, under the action of centrifugal force, the discharge of the cadmium-containing wastewater can be accelerated, and the precipitates are left inside the second filter cartridge 2. And when the sealing member 4 rotates, the filter screens 3 can be scraped by the holes formed by the through holes 5, effectively preventing the filter screens 3 from being blocked. Compared with the prior art, while accelerating the reaction efficiency, the stirring member formed by the second filter cartridge 2 and the filter screens 3 can improve the separation efficiency of the precipitates and the wastewater.

[0023] Please refer to Figures 1-3As shown, a rotating rod 8 is integrally formed at the bottom end of the second filter cartridge 2, and the rotating rod 8 is sealed and rotatably connected to the first filter cartridge 1, and the bottom end of the rotating rod 8 is connected to a driving assembly, and the driving assembly includes a first pulley 9, a belt 10, a second pulley 11 and a second motor 12. The first pulley 9 is installed at the bottom end of the rotating rod 8, and the first pulley 9 is connected to the second pulley 11 through the belt 10, and the second pulley 11 is connected to the output end of the second motor 12, and the second motor 12 is installed on one side of the outer wall of the first filter cartridge 1.

[0024] In this embodiment, by starting the second motor 12, the second pulley 11 is driven to rotate, and through the transmission of the belt 10, the first pulley 9 is driven to rotate, and the rotating rod 8 is rotated, which can drive the second filter cartridge 2 to rotate. The rotating rod 8 can leave a part of space between the second filter cartridge 2 and the first filter cartridge 1 for holding the discharged wastewater.

[0025] Please refer to Figures 1-3 As shown, a water inlet 13 is provided at the top of the closure member 4 and the top of the first cover plate 7, a drain outlet 14 is provided at the lower end of the outer wall of the first filter cartridge 1, a support member 15 is installed at the bottom end of the first filter cartridge 1, the top of the first filter cartridge 1 can be sealed by a second cover plate 16, and a handle 17 is installed at the top of the second cover plate 16.

[0026] In this embodiment, the first cover plate 7 is sealingly threadedly connected to the second filter cartridge and can be disassembled. The top of the closure member 4 and the top of the first cover plate 7 are both provided with a water inlet 13 for adding wastewater and chemicals. The water inlet 13 on the first cover plate 7 can be closed by a plugging member in the prior art without affecting the rotation of the closure member 4. The treated wastewater is discharged through the drain port 14. The support member 15 is used to support the first filter cartridge 1 and will not affect the installation of the drive assembly. The second cover plate 16 can be used to close the first filter cartridge 1 to prevent the thrown wastewater from flowing out, and the installed handle 17 is used to facilitate the opening and closing of the second cover plate 16.

[0027] Working principle: First, by starting the first motor 6, the closure 4 is driven to rotate, so that the through hole 5 is misaligned with the filter screen 3, and the filter screen 3 can be closed. At this time, the second filter cylinder 2 is driven to rotate at a constant speed by the driving component, which can drive the cadmium-containing wastewater inside to flow, accelerating the reaction efficiency between the wastewater and the chemical agent. After the reaction generates precipitates, the first motor 6 is started to drive the closure 4 to rotate, so that the through hole 5 coincides with the filter screen 3, and the filter screen 3 is opened. At this time, the driving component is used to drive the second filter cylinder 2 to rotate at an accelerated speed. Under the action of centrifugal force, the discharge of cadmium-containing wastewater can be accelerated, and the precipitates are left inside the second filter cylinder 2. And when the closure 4 rotates, the filter screen 3 can be scraped by the hole position formed by the through hole 5, which can effectively prevent the filter screen 3 from being blocked. Compared with the prior art, while accelerating the reaction efficiency, the stirring member formed by the second filter cylinder 2 and the filter screen 3 can improve the separation efficiency of the precipitates and the wastewater. By starting the second motor 12, the second belt pulley 11 is driven to rotate. Through the transmission of the belt 10, the first belt pulley 9 is driven to rotate, and the rotating rod 8 rotates, so that the second filter cylinder 2 can be driven to rotate. The rotating rod 8 can leave a part of the space between the second filter cylinder 2 and the first filter cylinder 1 for storing the discharged wastewater. Water inlets 13 are provided through the top ends of the closure 4 and the first cover plate 7 for adding wastewater and chemical agents. The water inlet 13 on the first cover plate 7 can be closed by a plugging member in the prior art, which will not affect the rotation of the closure 4. The treated wastewater is discharged through the drain port 14.

[0028] The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for treating electroplating wastewater containing cadmium, comprising a first filter cartridge (1), characterized in that: The inner cavity of the first filter cartridge (1) is provided with a rotatable second filter cartridge (2), and the second filter cartridge (2) can be rotated by a driving component. The outer wall of the second filter cartridge (2) is provided with a plurality of groups of filter screens (3) at equal intervals. The inner cavity of the second filter cartridge (2) is provided with a sealing member (4) for sealing rotation. The outer wall of the sealing member (4) is provided with a through hole (5) corresponding to the filter screen (3). The sealing member (4) is connected to the output end of the first motor (6). The first motor (6) is mounted on the top end of the first cover plate (7), and the first cover plate (7) is sealed and threadedly connected to the second filter cartridge (2).

2. The electroplating cadmium-containing wastewater treatment device according to claim 1, characterized in that: A water inlet (13) is provided through the top of the sealing member (4) and the top of the first cover plate (7).

3. The electroplating cadmium-containing wastewater treatment device according to claim 1 is characterized in that: A rotating rod (8) is integrally formed at the bottom end of the second filter cartridge (2), the rotating rod (8) is sealingly rotatably connected to the first filter cartridge (1), and the bottom end of the rotating rod (8) is connected to the driving assembly.

4. The electroplating cadmium-containing wastewater treatment device according to claim 3 is characterized in that: The driving assembly comprises a first pulley (9), a belt (10), a second pulley (11) and a second motor (12); the first pulley (9) is installed at the bottom end of the rotating rod (8); the first pulley (9) is connected to the second pulley (11) via the belt (10); the second pulley (11) is connected to the output end of the second motor (12); and the second motor (12) is installed on one side of the outer wall of the first filter cartridge (1).

5. The electroplating cadmium-containing wastewater treatment device according to claim 1 is characterized in that: A drainage port (14) is provided at the lower end of the outer wall of the first filter cartridge (1), and a support member (15) is installed at the bottom end of the first filter cartridge (1).

6. The electroplating cadmium-containing wastewater treatment device according to claim 1 is characterized in that: The top end of the first filter cartridge (1) can be sealed by a second cover plate (16), and a handle (17) is installed at the top end of the second cover plate (16).

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