Ionic membrane caustic soda resin regeneration wastewater treatment device

Abstract

The utility model discloses an ionic membrane caustic soda resin regeneration wastewater treatment device which comprises a treatment tank and a control host, a sealing cover is mounted at an opening in the top end of the treatment tank, a stirring assembly is mounted in the middle of the sealing cover, and the bottom of the stirring assembly is inserted into the treatment tank; a dosing tank is arranged on one side of the treatment tank, and a dosing end of the dosing tank is communicated with an inner cavity of the treatment tank; a drain pipe is arranged on the side surface of the treatment tank, the drain pipe is connected with a return pipe through a tee joint, electric control valves are arranged on the return pipe and the drain pipe, and a pH value detection sensor is arranged on the drain pipe. According to the utility model, the return pipe is arranged on the liquid discharge pipe of the treatment tank, and the pH value detection sensor is arranged on the liquid discharge pipe, so that the pH value of waste liquid in the liquid discharge pipe can be measured, and when the pH value is alkaline, the electric control valve on the liquid discharge pipe can be controlled to be opened, and the electric control valve on the return pipe can be closed at the same time.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an ion-exchange membrane caustic soda resin regeneration wastewater treatment device. Background Technology

[0002] In the ion-exchange membrane alkali production process, the chelating resin becomes saturated after adsorbing metal ions such as calcium, magnesium, and iron in the brine, resulting in a decrease in adsorption capacity and a risk of abnormal brine quality entering the electrolytic cell. To ensure that the brine quality is up to standard, the resin must be regenerated periodically using acid and alkali. However, the acidic wastewater generated after regeneration will corrode the equipment and pollute the environment.

[0003] In the prior art, utility model patent CN218453971U discloses an acidic wastewater treatment device, including a filter box. The inner wall of the filter box has an inclined groove, and a sliding strip is slidably connected inside the groove. A filter screen is fixedly connected to the side of the sliding strip, and a sealing plate is fixedly connected to one end of the filter screen. The sealing plate is bolted to the outside of the filter box. A slag discharge groove is provided inside the filter box, and a waste residue box is fixedly connected to one side of the filter box. This acidic wastewater treatment device, by installing the filter screen at an incline in the filter box and installing a first inlet pipe on the side of the filter box, allows waste residue in the acidic wastewater to be flushed into the filter box during filtration, reducing the impact of the wastewater on the filter screen and extending its service life. The filter screen can be pulled out through the groove for inspection and timely replacement, improving the practicality of the device.

[0004] The acidic wastewater treatment device provided by the aforementioned patent is mainly for treating waste residue in acidic wastewater. It is not suitable for treating wastewater from the regeneration of ion-exchange membrane caustic soda resin, because this wastewater contains virtually no waste residue. Furthermore, treating this wastewater requires neutralizing it to alkalinity and then injecting the alkaline wastewater into brine wells to dissolve underground rock salt, thus achieving wastewater reuse. Utility Model Content

[0005] The purpose of this invention is to provide an ion-exchange membrane caustic soda resin regeneration wastewater treatment device, which aims to improve the problem that existing acidic wastewater treatment devices are not suitable for treating ion-exchange membrane caustic soda resin regeneration wastewater and cannot neutralize the wastewater to alkalinity.

[0006] This utility model is implemented as follows:

[0007] A wastewater treatment device for ion-exchange membrane caustic soda resin regeneration includes a treatment tank and a control unit. A cover is installed at the top opening of the treatment tank, and a stirring assembly is installed in the middle of the cover, with its bottom inserted into the interior of the treatment tank. A dosing tank is located on one side of the treatment tank, with its discharge end communicating with the inner cavity of the treatment tank. A drain pipe is located on the side of the treatment tank, and the drain pipe is connected to a return pipe via a tee. Both the return pipe and the drain pipe are equipped with electrically controlled valves, and the drain pipe is equipped with a pH sensor. The pH sensor and the two electrically controlled valves are all connected to the control unit, which is mounted on the side of the treatment tank.

[0008] Preferably, the treatment tank has an installation plate at the top opening, and the installation plate has a plurality of evenly distributed installation holes; the treatment tank has a support leg at the bottom, and the support leg has bolt holes at the bottom; and the treatment tank has a dosing pipe on its side near the top.

[0009] Preferably, the electric control valve has an actuator at its end, a connecting line on the side of the actuator, a connecting plug at the end of the connecting line, and a threaded hole near the treatment tank in the drain pipe.

[0010] Preferably, the cover has a bearing in the middle and a connecting plate at the bottom, the connecting plate has multiple connecting holes, the cover has a liquid inlet on the side, and the end of the liquid inlet has a flange.

[0011] Preferably, the stirring assembly includes a stirring motor and a stirring rod. The stirring motor is fixed to the top of the cover, and the stirring rod is rotatably connected to the cover. The output end of the stirring motor is connected to the stirring rod.

[0012] Preferably, the top end of the stirring rod is provided with an adapter shaft, the adapter shaft is interference-fitted with a bearing, the top end of the adapter shaft is provided with a drive slot, and the bottom end of the stirring rod is provided with multiple stirring blades.

[0013] Preferably, the end of the stirring motor that is attached to the cover is provided with multiple fixing feet, and the fixing feet are provided with fixing holes. The output end of the stirring motor is connected to the drive slot.

[0014] Preferably, the bottom end of the pH value detection sensor is threadedly connected to a threaded hole, and the bottom end of the pH value detection sensor is provided with a sensing probe. The top end of the pH value detection sensor is provided with a hexagon, and the top end of the pH value detection sensor is provided with a wire. The wire is provided with a connector, and the connector is connected to the control host.

[0015] Preferably, the top of the dosing tank is provided with a dosing port and an adapter cover is provided at the dosing port. The top of the dosing tank is provided with a suction pipe and a dosing pump. The suction end of the dosing pump is connected to the suction pipe, and the discharge end of the dosing pump is provided with a discharge pipe, which is connected to the dosing pipe.

[0016] Preferably, the processing tank has a mounting plate on its side, the mounting plate is L-shaped, the control host has multiple connecting slots on its side, the control host has a socket frame on its back, the socket frame is fitted onto the mounting plate, and the socket frame has a pressing knob on its back.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model has a return pipe installed on the drain pipe of the treatment tank, and a pH value detection sensor is installed on the drain pipe to measure the pH value of the waste liquid inside the drain pipe. When the pH value is alkaline, the electric control valve on the drain pipe can be opened and the electric control valve on the return pipe can be closed at the same time. This can effectively prevent the discharge of wastewater that has not been neutralized to alkalinity.

[0019] 2. The treatment tank of this utility model is equipped with a stirring component and a dosing tank. An alkaline neutralizing agent is added to the wastewater through the dosing tank, thereby facilitating the neutralization of acidic wastewater into alkaline wastewater. Under the action of the stirring component, the alkaline neutralizing agent and the acidic wastewater can react rapidly.

[0020] 3. The control host and the processing tank of this utility model can be flexibly disassembled and assembled, which makes it convenient for staff to disassemble and assemble the control host according to the usage needs, greatly improving the flexibility of the control host. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the processing tank of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the cap of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the stirring assembly of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the control host of this utility model;

[0026] Figure 6 This is a schematic diagram of the pH value detection sensor of this utility model;

[0027] Figure 7This is a schematic diagram of the structure of the dosing tank of this utility model.

[0028] In the diagram: 1. Treatment tank; 11. Mounting plate; 12. Mounting hole; 13. Dosing pipe; 14. Hanging plate; 15. Support leg; 151. Bolt hole; 16. Drain pipe; 17. Return pipe; 18. Electrically controlled valve; 181. Actuator; 182. Connecting cable; 183. Connecting plug; 19. Threaded hole; 2. Cover; 21. Bearing; 22. Connecting plate; 23. Connecting hole; 24. Liquid inlet; 25. Flange; 3. Agitator assembly; 31. Agitator motor 311. Fixing foot; 312. Fixing hole; 32. Stirring rod; 321. Adapter shaft; 322. Drive slot; 323. Stirring blade; 4. Control unit; 41. Connecting slot; 42. Socket frame; 43. Clamping knob; 5. pH value detection sensor; 51. Sensor probe; 52. Hexagon; 53. Wire; 54. Connector; 6. Dosing tank; 61. Dosing port; 62. Adapter cover; 63. Suction pipe; 64. Dosing pump; 65. Discharge pipe. Detailed implementation method:

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0031] Example 1

[0032] like Figure 1As shown, an ion-exchange membrane caustic soda resin regeneration wastewater treatment device includes a treatment tank 1 and a control unit 4. The treatment tank 1 facilitates the dosing treatment of the ion-exchange membrane caustic soda resin regeneration wastewater, and the control unit 4 is used to control the entire wastewater treatment device. A cover 2 is installed at the top opening of the treatment tank 1 to seal the top opening. A stirring component 3 is installed in the middle of the cover 2, and the bottom of the stirring component 3 is inserted into the interior of the treatment tank 1; the stirring component 3 facilitates the stirring and mixing of wastewater and chemical solution inside the dosing tank 6. A dosing tank 6 is provided on one side of the treatment tank 1, and the discharge end of the dosing tank 6 communicates with the inner cavity of the treatment tank 1; this facilitates the addition of chemical solution into the treatment tank 1. A drain pipe 16 is provided on the side of the treatment tank 1. The drain pipe 16 is connected to a return pipe 17 via a tee. Both the return pipe 17 and the drain pipe 16 are equipped with electrically controlled valves 18, and the drain pipe 16 is equipped with a pH value detection sensor 5. The pH value detection sensor 5 and the two electrically controlled valves 18 are all connected to the control host 4, which is installed on the side of the treatment tank 1. This structure allows the pH value detection sensor 5 to detect that the pH value has not reached the alkaline standard, and then control the electrically controlled valve 18 on the drain pipe to close, while simultaneously opening the electrically controlled valve 18 on the return pipe 17. This allows the waste liquid to flow back into the treatment tank 1 for further neutralization until it is neutralized to alkalinity. After neutralization, the control host 4 controls the electrically controlled valve 18 on the return pipe 17 to close and the electrically controlled valve 18 on the drain pipe to open. This ensures the effective treatment of the ion-exchange membrane caustic soda resin regeneration wastewater.

[0033] like Figure 2 As shown, a mounting plate 11 is provided at the top opening of the treatment tank 1, and multiple mounting holes 12 are evenly distributed on the mounting plate 11; the mounting plate 11 and the mounting holes 12 cooperate to facilitate the connection between the cover 2 and the treatment tank 1. A support leg 15 is provided at the bottom of the treatment tank 1, and bolt holes 151 are provided at the bottom of the support leg 15; the support leg and bolt holes 151 facilitate the fixing of the treatment tank 1. A dosing pipe 13 is provided on the side of the treatment tank 1 near the top; the dosing pipe 13 facilitates the addition of alkaline neutralizing agent into the treatment tank 1 in conjunction with the dosing tank 6. An actuator 181 is provided at the end of the electric control valve 18; a connecting line 182 is provided on the side of the actuator 181; a connecting plug 183 is provided at the end of the connecting line 182; the actuator 181, in conjunction with the connecting line 182 and the connecting plug 183, facilitates the opening and closing and use of the actuator 181. A threaded hole 19 is provided on the drain pipe 16 near the treatment tank 1; the threaded hole 19 facilitates the installation of a pH detection sensor.

[0034] like Figure 3As shown, a bearing 21 is provided in the middle of the cover 2, which facilitates rotational connection with the stirring assembly 3. A connecting plate 22 is provided at the bottom of the cover 2, and multiple connecting holes 23 are provided on the connecting plate 22. The connecting plate 22 and the connecting holes 23 facilitate connection of the cover 2 to the treatment tank 1 via bolts. A liquid inlet 24 is provided on the side of the cover 2, and a flange 25 is provided at the end of the liquid inlet 24. The liquid inlet 24, in conjunction with the flange 25, facilitates connection to a wastewater conveying pipeline.

[0035] like Figure 4 As shown, the stirring assembly 3 includes a stirring motor 31 and a stirring rod 32. The stirring motor 31 is fixed to the top of the cover 2, and the stirring rod 32 is rotatably connected to the cover 2. The output end of the stirring motor 31 is connected to the stirring rod 32. This structure facilitates the stirring motor 31 to drive the stirring rod 32 to rotate, thereby achieving the purpose of stirring. The top of the stirring rod 32 is provided with a transition shaft 321, which is interference-fitted with the bearing 21 to facilitate the rotation of the stirring rod 32. The top of the transition shaft 321 is provided with a drive slot 322, which facilitates the connection between the stirring motor 31 and the stirring rod 32. The bottom of the stirring rod 32 is provided with multiple stirring blades 323, which facilitate stirring in the processing tank 1. The end of the stirring motor 31 that is in contact with the cover 2 is provided with multiple fixing feet 311, and the fixing feet 311 are provided with fixing holes 312. The cooperation between the fixing feet 311 and the fixing holes 312 facilitates the fixing of the stirring motor 31 with bolts. The output end of the stirring motor 31 is connected to the drive slot 322. This structure facilitates the stirring motor 31 to drive the stirring rod 32 to rotate.

[0036] like Figure 6 As shown, the bottom end of the pH sensor 5 is threadedly connected to the threaded hole 19, and a sensing probe 51 is provided at the bottom end of the pH sensor 5 for convenient detection of the pH value of wastewater. A hexagonal body 52 is provided at the top of the pH sensor 5 for easy rotation. A wire 53 is provided at the top of the pH sensor 5, and a connector 54 is provided on the wire 53. The connector 54 is connected to the control host 4, facilitating the connection between the pH sensor 5 and the control host 4.

[0037] like Figure 7 As shown, the top of the dosing tank 6 is equipped with a dosing port 61, and an adapter cover 62 is provided at the dosing port 61. The dosing port 61 facilitates the injection of liquid medicine into the dosing tank 6. The top of the dosing tank 6 is equipped with a suction pipe 63, and a dosing pump 64 is also located at the top of the dosing tank 6. The suction end of the dosing pump 64 is equipped with a discharge pipe 65, which is connected to the dosing pipe 13. The discharge pipe 65 facilitates the discharge of liquid medicine from the treatment tank 1.

[0038] Example 2

[0039] like Figure 1 As shown, an ion-exchange membrane caustic soda resin regeneration wastewater treatment device includes a treatment tank 1 and a control unit 4. The treatment tank 1 facilitates the dosing treatment of the ion-exchange membrane caustic soda resin regeneration wastewater, and the control unit 4 is used to control the entire wastewater treatment device. A cover 2 is installed at the top opening of the treatment tank 1 to seal the top opening. A stirring component 3 is installed in the middle of the cover 2, and the bottom of the stirring component 3 is inserted into the interior of the treatment tank 1; the stirring component 3 facilitates the stirring and mixing of wastewater and chemical solution inside the dosing tank 6. A dosing tank 6 is provided on one side of the treatment tank 1, and the discharge end of the dosing tank 6 communicates with the inner cavity of the treatment tank 1; this facilitates the addition of chemical solution into the treatment tank 1. A drain pipe 16 is provided on the side of the treatment tank 1. The drain pipe 16 is connected to a return pipe 17 via a tee. Both the return pipe 17 and the drain pipe 16 are equipped with electrically controlled valves 18, and the drain pipe 16 is equipped with a pH value detection sensor 5. The pH value detection sensor 5 and the two electrically controlled valves 18 are all connected to the control host 4, which is installed on the side of the treatment tank 1. This structure allows the pH value detection sensor 5 to detect that the pH value has not reached the alkaline standard, and then control the electrically controlled valve 18 on the drain pipe to close, while simultaneously opening the electrically controlled valve 18 on the return pipe 17. This allows the waste liquid to flow back into the treatment tank 1 for further neutralization until it is neutralized to alkalinity. After neutralization, the control host 4 controls the electrically controlled valve 18 on the return pipe 17 to close and the electrically controlled valve 18 on the drain pipe to open. This ensures the effective treatment of the ion-exchange membrane caustic soda resin regeneration wastewater.

[0040] like Figure 2 As shown, a mounting plate 11 is provided at the top opening of the treatment tank 1, and multiple mounting holes 12 are evenly distributed on the mounting plate 11; the mounting plate 11 and the mounting holes 12 cooperate to facilitate the connection between the cover 2 and the treatment tank 1. A support leg 15 is provided at the bottom of the treatment tank 1, and bolt holes 151 are provided at the bottom of the support leg 15; the support leg and bolt holes 151 facilitate the fixing of the treatment tank 1. A dosing pipe 13 is provided on the side of the treatment tank 1 near the top; the dosing pipe 13 facilitates the addition of alkaline neutralizing agent into the treatment tank 1 in conjunction with the dosing tank 6. An actuator 181 is provided at the end of the electric control valve 18; a connecting line 182 is provided on the side of the actuator 181; a connecting plug 183 is provided at the end of the connecting line 182; the actuator 181, in conjunction with the connecting line 182 and the connecting plug 183, facilitates the opening and closing and use of the actuator 181. A threaded hole 19 is provided on the drain pipe 16 near the treatment tank 1; the threaded hole 19 facilitates the installation of a pH detection sensor.

[0041] like Figure 3As shown, a bearing 21 is provided in the middle of the cover 2, which facilitates rotational connection with the stirring assembly 3. A connecting plate 22 is provided at the bottom of the cover 2, and multiple connecting holes 23 are provided on the connecting plate 22. The connecting plate 22 and the connecting holes 23 facilitate connection of the cover 2 to the treatment tank 1 via bolts. A liquid inlet 24 is provided on the side of the cover 2, and a flange 25 is provided at the end of the liquid inlet 24. The liquid inlet 24, in conjunction with the flange 25, facilitates connection to a wastewater conveying pipeline.

[0042] like Figure 4 As shown, the stirring assembly 3 includes a stirring motor 31 and a stirring rod 32. The stirring motor 31 is fixed to the top of the cover 2, and the stirring rod 32 is rotatably connected to the cover 2. The output end of the stirring motor 31 is connected to the stirring rod 32. This structure facilitates the stirring motor 31 to drive the stirring rod 32 to rotate, thereby achieving the purpose of stirring. The top of the stirring rod 32 is provided with a transition shaft 321, which is interference-fitted with the bearing 21 to facilitate the rotation of the stirring rod 32. The top of the transition shaft 321 is provided with a drive slot 322, which facilitates the connection between the stirring motor 31 and the stirring rod 32. The bottom of the stirring rod 32 is provided with multiple stirring blades 323, which facilitate stirring in the processing tank 1. The end of the stirring motor 31 that is in contact with the cover 2 is provided with multiple fixing feet 311, and the fixing feet 311 are provided with fixing holes 312. The cooperation between the fixing feet 311 and the fixing holes 312 facilitates the fixing of the stirring motor 31 with bolts. The output end of the stirring motor 31 is connected to the drive slot 322. This structure facilitates the stirring motor 31 to drive the stirring rod 32 to rotate.

[0043] like Figure 6 As shown, the bottom end of the pH sensor 5 is threadedly connected to the threaded hole 19, and a sensing probe 51 is provided at the bottom end of the pH sensor 5 for convenient detection of the pH value of wastewater. A hexagonal body 52 is provided at the top of the pH sensor 5 for easy rotation. A wire 53 is provided at the top of the pH sensor 5, and a connector 54 is provided on the wire 53. The connector 54 is connected to the control host 4, facilitating the connection between the pH sensor 5 and the control host 4.

[0044] like Figure 7 As shown, the top of the dosing tank 6 is equipped with a dosing port 61, and an adapter cover 62 is provided at the dosing port 61. The dosing port 61 facilitates the injection of liquid medicine into the dosing tank 6. The top of the dosing tank 6 is equipped with a suction pipe 63, and a dosing pump 64 is also located at the top of the dosing tank 6. The suction end of the dosing pump 64 is equipped with a discharge pipe 65, which is connected to the dosing pipe 13. The discharge pipe 65 facilitates the discharge of liquid medicine from the treatment tank 1.

[0045] like Figure 1 and Figure 5 As shown, the treatment tank 1 has a mounting plate 14 on its side. The mounting plate 14 is L-shaped, which facilitates the installation of the control host 4 and allows for flexible assembly, disassembly, and use of the control host 4. The control host 4 has multiple connecting slots 41 on its side, which facilitate the connection of the control host 4 with the electric control valve 18 and the pH value detection sensor 5. The control host 4 has a socket frame 42 on its back, which fits onto the mounting plate 14. The socket frame 42 has a clamping knob 43 on its back. The socket frame 42 is conveniently fitted onto the mounting plate 14, and the clamping knob 43 is conveniently used to fix the control host 4.

[0046] Working principle: In use, the inlet 24 at the top of the cap 2 is connected to the discharge pipe of the ion-exchange membrane caustic soda resin regeneration wastewater. At the same time, sufficient alkaline neutralizing agent is injected into the dosing tank 6, and the dosage of the dosing pump 64 is adjusted. Then, wastewater is injected into the treatment tank 1, and alkaline neutralizing agent is added. Under the output of the stirring motor 31, the stirring rod 32 mixes the wastewater and the agent in the middle of the treatment tank 1 evenly, so that the acid and base are neutralized. At the same time, the pH value detection sensor 5 will detect the pH value of the wastewater. When the pH value does not reach the alkaline standard, the electric control valve 18 on the drain pipe 16 is closed, and the electric control valve 18 on the return pipe 17 is opened. The return pipe 17 is equipped with a return pump, which allows the wastewater to return to the treatment tank 1 for continued neutralization until the pH value of the wastewater reaches the alkaline standard. Then the drain pipe 16 is opened and the return pipe 17 is closed.

[0047] In summary, compared with the prior art, this application, by installing a return pipe 17 on the drain pipe of the treatment tank 1 and setting a pH value detection sensor 5 on the drain pipe, can measure the pH value of the waste liquid inside the drain pipe. When the pH value is alkaline, the solenoid valve 18 on the drain pipe can be opened, and the solenoid valve 18 on the return pipe 17 can be closed simultaneously. This can effectively prevent the discharge of wastewater that has not been neutralized to alkalinity. At the same time, the treatment tank 1 with this structure is equipped with a stirring assembly 3 and a dosing tank 6. Alkaline neutralizing agent is added to the wastewater through the dosing tank 6, thereby facilitating the neutralization of acidic wastewater into alkaline wastewater. Under the action of the stirring assembly 3, the alkaline neutralizing agent and acidic wastewater can react rapidly.

[0048] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wastewater treatment device for ion-exchange membrane caustic soda resin regeneration, comprising a treatment tank (1) and a control unit (4), characterized in that, The treatment tank (1) is equipped with a cover (2) at the top opening, and a stirring assembly (3) is installed in the middle of the cover (2). The bottom of the stirring assembly (3) is inserted into the treatment tank (1). A dosing tank (6) is provided on one side of the treatment tank (1), and the discharge end of the dosing tank (6) is connected to the inner cavity of the treatment tank (1). A drain pipe (16) is provided on the side of the treatment tank (1). The drain pipe (16) is connected to a return pipe (17) through a tee. Both the return pipe (17) and the drain pipe (16) are equipped with an electric control valve (18). A pH value detection sensor (5) is provided on the drain pipe (16). The pH value detection sensor (5) and the two electric control valves (18) are connected to the control host (4). The control host (4) is installed on the side of the treatment tank (1).

2. The ion-exchange membrane caustic soda resin regeneration wastewater treatment device according to claim 1, characterized in that, The treatment tank (1) has an installation plate (11) at the top opening, and the installation plate (11) has a plurality of installation holes (12) evenly distributed on it; the treatment tank (1) has a support leg (15) at the bottom, and the support leg (15) has a bolt hole (151) at the bottom; the treatment tank (1) has a dosing pipe (13) on its side near the top.

3. The ion-exchange membrane caustic soda resin regeneration wastewater treatment device according to claim 2, characterized in that, The electric control valve (18) is provided with an actuator (181) at its end, and a connecting line (182) is provided on the side of the actuator (181). A connecting plug (183) is provided at the end of the connecting line (182). A threaded hole (19) is provided on the drain pipe (16) near the treatment tank (1).

4. The ion-exchange membrane caustic soda resin regeneration wastewater treatment device according to claim 1, characterized in that, The cover (2) has a bearing (21) in the middle and a connecting plate (22) at the bottom. The connecting plate (22) has multiple connecting holes (23). The cover (2) has a liquid inlet (24) on its side and a flange (25) at the end of the liquid inlet (24).

5. The ion-exchange membrane caustic soda resin regeneration wastewater treatment device according to claim 4, characterized in that, The stirring assembly (3) includes a stirring motor (31) and a stirring rod (32). The stirring motor (31) is fixed to the top of the cover (2), and the stirring rod (32) is rotatably connected to the cover (2). The output end of the stirring motor (31) is connected to the stirring rod (32).

6. The ion-exchange membrane caustic soda resin regeneration wastewater treatment device according to claim 5, characterized in that, The top end of the stirring rod (32) is provided with a transition shaft (321), the transition shaft (321) is interference-fitted with the bearing (21), the top end of the transition shaft (321) is provided with a drive slot (322), and the bottom end of the stirring rod (32) is provided with multiple stirring blades (323).

7. The ion-exchange membrane caustic soda resin regeneration wastewater treatment device according to claim 6, characterized in that, The stirring motor (31) has multiple fixing feet (311) at one end that fits into the cover (2). The fixing feet (311) have fixing holes (312). The output end of the stirring motor (31) is connected to the drive slot (322).

8. The ion-exchange membrane caustic soda resin regeneration wastewater treatment device according to claim 3, characterized in that, The bottom end of the pH value detection sensor (5) is threadedly connected to the threaded hole (19), and the bottom end of the pH value detection sensor (5) is provided with a sensing probe (51). The top end of the pH value detection sensor (5) is provided with a hexagon (52), and the top end of the pH value detection sensor (5) is provided with a wire (53). The wire (53) is provided with a connector (54), and the connector (54) is connected to the control host (4).

9. The ion-exchange membrane caustic soda resin regeneration wastewater treatment device according to claim 2, characterized in that, The dosing tank (6) has a dosing port (61) at the top and an adapter cover (62) at the dosing port (61). The dosing tank (6) has a suction pipe (63) at the top and a dosing pump (64) at the top. The suction end of the dosing pump (64) is connected to the suction pipe (63), and the discharge end of the dosing pump (64) has a discharge pipe (65) connected to the dosing pipe (13).

10. A wastewater treatment device for ion-exchange membrane caustic soda resin regeneration according to any one of claims 1-9, characterized in that, The processing tank (1) has a mounting plate (14) on its side, which is L-shaped. The control host (4) has multiple connecting slots (41) on its side, and a socket frame (42) on its back. The socket frame (42) is fitted onto the mounting plate (14), and a pressing knob (43) is provided on the back of the socket frame (42).

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