A p-chlorobenzonitrile production wastewater treatment device

Abstract

The present application relates to the production field of p-chlorobenzonitrile, and particularly relates to a p-chlorobenzonitrile production wastewater treatment equipment, which comprises a main frame, an impurity storage tank and a wastewater storage tank are arranged at the bottom end of the main frame, support plates are respectively arranged on the main frame, and the equipment further comprises: an impurity filtration and synchronous electrolysis mechanism, the impurity filtration and synchronous electrolysis mechanism comprises a filter plate, a filter groove is formed at the top of the filter plate, and a sedimentation groove is formed at the bottom of the filter groove; electrolysis rods for electrolysis treatment of flowing wastewater are embedded at the two ends of the sedimentation groove, a plurality of aeration nozzles are formed at the bottom of the sedimentation groove; a gas supply assembly is arranged at the bottom of the filter plate; the filter plate is rotatably connected to the main frame through a rotating shaft, and a bearing assembly for bearing treatment of the filter plate is mounted on the support plate, in the process of slow flow and impurity sedimentation of the wastewater, the wastewater is synchronously subjected to electrolysis treatment, so that the safe production and environmental protection treatment of the p-chlorobenzonitrile are ensured.

Description

Technical Field

[0001] This invention relates to the field of p-chlorobenzonitrile production, specifically to a wastewater treatment device for p-chlorobenzonitrile production. Background Technology

[0002] p-Chlorobenzonitrile is an important organic chemical intermediate and fine chemical with wide applications in pesticides, pharmaceuticals, and other fields. It is a simple yet versatile organic synthesis intermediate. The cyano group and the chlorine atom at the para position in its molecule endow it with rich chemical reactivity, making it irreplaceable in the pesticide and pharmaceutical industries.

[0003] In traditional processes, large particulate impurities are removed after filtration, but a large amount of highly concentrated, recalcitrant toxic substances adsorbed on their surfaces are also transferred. These toxins enriched on the surface of the impurities cannot make sufficient contact with the subsequent electrolysis units, resulting in a significant reduction in electrolysis efficiency, creating a treatment blind spot, and restricting the effectiveness of subsequent deep treatment and overall purification efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater treatment device for the production of p-chlorobenzonitrile, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A wastewater treatment device for the production of p-chlorobenzonitrile includes a main frame. An impurity storage tank and a wastewater storage tank are located at the bottom of the main frame. Support plates are fixedly mounted on the main frame at the top of the impurity storage tank and the wastewater storage tank, respectively. The device also includes an impurity filtration and simultaneous electrolysis mechanism. This mechanism includes a filter plate with a filter groove at the top and several sedimentation grooves at the bottom. Electrolytic rods for electrolyzing the flowing wastewater are embedded at both ends of the sedimentation grooves. Several aeration nozzles are located at the bottom of the sedimentation grooves. An air supply assembly is located at the bottom of the filter plate to supply air to the aeration nozzles. The outer end of the filter plate is rotatably connected to the main frame via a rotating shaft, and a support assembly for supporting the filter plate is mounted on the support plate.

[0007] Preferably, the bottom of the main frame is further provided with an installation component; the installation component includes a mounting base, which is placed at the four corners of the bottom of the main frame, and the bottom of the mounting base is provided with mounting holes.

[0008] Preferably, an operation panel is installed on the main frame.

[0009] Preferably, the impurity filtration synchronous electrolysis mechanism further includes a first rotating assembly, which is placed on the side wall of the main frame; the first rotating assembly includes a first motor fixedly installed on the outer wall of the main frame, a first bevel gear is installed on the motor shaft of the first motor, a second bevel gear is meshed on the first bevel gear, and the second bevel gear is connected to the rotating shaft.

[0010] Preferably, the impurity filtration synchronous electrolysis mechanism further includes a support assembly, which includes a support frame that is slidably mounted on a support plate and has its bottom support placed at the bottom of the filter plate. It also includes a telescopic rod that is placed on the support plate and has its top telescopic end connected to the support frame.

[0011] Preferably, the air supply assembly includes a branch air supply pipe and a main air supply pipe, the branch air supply pipe being connected in a conductive manner to each aerator nozzle, and the main air supply pipe being located at the center of the branch air supply pipe.

[0012] Preferably, the impurity filtration synchronous electrolysis mechanism further includes an electrolytic battery, which is placed at the bottom of the filter plate, and the two ends of the electrolytic battery are connected to each of the electrolytic rods through power supply lines.

[0013] Preferably, a wastewater treatment device for the production of p-chlorobenzonitrile further includes: an activated carbon adsorption mechanism, the activated carbon adsorption mechanism including a filter tank, the filter tank being placed on a main frame located on both sides of an impurity storage tank and a wastewater storage tank; a liquid extraction assembly, the liquid extraction assembly drawing wastewater from inside the wastewater storage tank into the filter tank for activated carbon adsorption; the liquid extraction assembly including a liquid extraction pump fixedly installed on the outer wall of the wastewater storage tank, the top of the liquid extraction pump being connected to a filter cover via a liquid extraction pipe, the filter cover being placed at the bottom of the wastewater storage tank; and a liquid supply pipe, one end of the liquid supply pipe being connected to the liquid extraction pump, and the other end of the liquid supply pipe being connected to the filter tank via a connecting pipe.

[0014] Preferably, the filter tank contains a filter element with several connecting cavities. Activated carbon adsorption plates are installed inside the connecting cavities. A rotating cleaning assembly for cleaning the activated carbon adsorption plates is located at the center of the filter element. The rotating cleaning assembly includes a stirring shaft positioned at the center of the filter element and the activated carbon adsorption plates. A stirring cleaning rod is mounted on the stirring shaft and positioned on top of the activated carbon adsorption plates. The assembly also includes a sealing cover positioned at the bottom center of the filter element. A third motor is installed inside the sealing cover, and the motor shaft of the third motor is connected to the stirring shaft.

[0015] Preferably, the activated carbon adsorption mechanism further includes a drain assembly, which is located at the bottom of the main frame; the drain assembly includes a first drain pipe that is connected to the bottom of each filter tank, and a second drain pipe is provided at the center of the first drain pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a simple overall structure and is convenient for wastewater treatment, thus facilitating the treatment of wastewater from the production of chlorobenzonitrile;

[0017] This invention features a rotatable filter plate on its impurity filtration and simultaneous electrolysis mechanism. The filter plate has filter tanks and sedimentation grooves that allow for the sedimentation and filtration of impurities in slowly flowing wastewater. During the wastewater flow, a power supply component powers each electrolysis rod to electrolyze the wastewater, and an air supply component powers aeration nozzles to aerate the wastewater during electrolysis. This aeration process simultaneously initiates a highly efficient electrochemical oxidation process in the core area where impurities settle and accumulate. This structure fully utilizes the impurity residence time to degrade organic pollutants enriched on the impurity surface and in the aqueous phase in situ. Specifically, it targets and detoxifies the cyano group (-CN) and benzene ring structure in the p-chlorobenzonitrile molecule during the pretreatment stage. Simultaneously, the microbubbles generated by aeration effectively prevent impurities from caking in the grooves, ensuring the continuous penetration of the electrolysis reaction and providing the necessary gaseous oxidant (oxygen) for the electrochemical reaction, resulting in a significant synergistic effect.

[0018] This invention, in conjunction with a support component and a rotating shaft, drives the bottom end of the filter plate to rotate onto the impurity storage tank, thereby achieving the collection and storage of filtered impurities. This realizes automated filtration and collection of impurities, avoiding the problem of manual cleaning required by traditional fixed filter screens, resulting in higher processing efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a wastewater treatment device for the production of p-chlorobenzonitrile provided by the present invention.

[0020] Figure 2 This is a schematic diagram of the connection between the filter plate and the main frame in a wastewater treatment device for the production of p-chlorobenzonitrile provided by the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the impurity storage tank and the wastewater storage tank in a wastewater treatment device for the production of p-chlorobenzonitrile provided by the present invention.

[0022] Figure 4 This is a schematic diagram of the connection between the load-bearing component and the support plate in a wastewater treatment device for the production of p-chlorobenzonitrile provided by the present invention.

[0023] Figure 5 This is a schematic diagram of the filter plate in a wastewater treatment device for the production of p-chlorobenzonitrile provided by the present invention.

[0024] Figure 6This is a schematic diagram of the connection between the gas supply component and the electrolytic cell and the filter plate in a wastewater treatment device for the production of p-chlorobenzonitrile provided by the present invention.

[0025] Figure 7 This is a schematic diagram of the activated carbon adsorption mechanism in a wastewater treatment device for the production of p-chlorobenzonitrile provided by the present invention.

[0026] Figure 8 This is a schematic diagram of the filter tank in a wastewater treatment device for the production of p-chlorobenzonitrile provided by the present invention.

[0027] Figure 9 This is a cross-sectional view of a filter tank in a wastewater treatment device for the production of p-chlorobenzonitrile provided by the present invention.

[0028] Reference numerals: 1. Main frame; 2. Impurity filtration and synchronous electrolysis mechanism; 3. Activated carbon adsorption mechanism; 11. Mounting assembly; 111. Mounting base; 112. Mounting hole; 12. Operation panel; 13. Impurity storage tank; 14. Wastewater storage tank; 15. Support plate; 21. Filter plate; 22. Filter tank; 23. Sedimentation groove; 24. Rotating shaft; 25. First rotating assembly; 251. First motor; 252. First bevel gear; 253. Second bevel gear; 26. Bearing assembly; 261. Telescopic rod; 262. Bearing frame; 27. Aeration nozzle; 28. Air supply assembly; 281. Air supply... 282. Gas distribution pipe; 29. ​​Gas supply main pipe; 210. Electrolysis rod; 211. Electrolytic cell; 211. Power supply line; 31. Filter tank; 311. Mounting sleeve; 312. Filter element; 313. Connecting cavity; 314. Activated carbon adsorption plate; 315. Rotary cleaning assembly; 3151. Sealing cover; 3152. Third motor; 3153. Stirring shaft; 3154. Stirring and cleaning rod; 32. Liquid extraction assembly; 321. Liquid extraction pump; 322. Liquid extraction pipe; 323. Filter cover; 324. Liquid supply pipe; 33. Connecting pipe; 34. Liquid drainage assembly; 341. First liquid drainage pipe; 342. Second liquid drainage pipe. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of the present invention to facilitate a better understanding of this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] See Figures 1-9 In this embodiment of the invention, a wastewater treatment device for the production of p-chlorobenzonitrile includes a main frame 1. The bottom end of the main frame 1 is provided with an impurity storage tank 13 and a wastewater storage tank 14. Support plates 15 are respectively fixedly provided on the main frame 1 at the top of the impurity storage tank 13 and the wastewater storage tank 14. The impurity storage tank 13 is provided to store and treat the filtered impurities, while the wastewater storage tank 14 is provided to electrolyze the filtered wastewater.

[0033] It also includes: an impurity filtration synchronous electrolysis mechanism 2, which includes a filter plate 21, a filter groove 22 is provided on the top of the filter plate 21, and a plurality of sedimentation grooves 23 are provided on the bottom of the filter groove 22.

[0034] The filter tank 22 facilitates the slow-flow drainage of wastewater, while the several sedimentation tanks 23 enable the sedimentation and filtration of impurities in the slow-flowing wastewater, thus facilitating the filtration of impurities in the wastewater.

[0035] Electrolytic rods 29 for electrolyzing flowing wastewater are embedded at both ends of the sedimentation groove 23.

[0036] The bottom of the sedimentation groove 23 is provided with a number of aeration nozzles 27;

[0037] The bottom of the filter plate 21 is provided with an air supply component 28, which is used to supply air to each aeration nozzle 27.

[0038] The outer end of the filter plate 21 is rotatably connected to the main frame 1 via a rotating shaft 24, and a support assembly 26 for bearing the filter plate 21 is installed on the support plate 15.

[0039] The filter plate 21 is rotatably connected to the main frame 1 via the rotating shaft 24, while the bearing component 26 is provided to support the bottom end of the filter plate 21, thereby ensuring the drainage filtration process of the filter plate 21.

[0040] This invention involves adding wastewater from the production of p-chlorobenzonitrile to a filter plate 21 for slow flow. The filter plate 21 has filter grooves 22 and several sedimentation grooves 23 to filter the wastewater. The filtered wastewater flows into a wastewater storage tank 14. During the filtration and sedimentation process, the flowing wastewater undergoes aerobic electrolysis via an electrolysis rod 29 in conjunction with an air supply component 28 and an aeration nozzle 27. This electrolysis process controls the presence of cyano groups (-CN) and recalcitrant aromatic compounds in the p-chlorobenzonitrile production wastewater. The electrolysis rod 29 directly electrochemically oxidizes the wastewater, while the air supply component 28 and aeration nozzle 27 introduce air or oxygen. This produces a dual synergistic effect: firstly, oxygen may participate on the electrode surface and generate more oxidizing reactive oxygen species (such as ·OH), enhancing the destruction of cyanide and benzene ring structures; secondly, the agitation of the bubbles prevents the electrode surface from being covered by contaminants, ensuring continuous and efficient electrolysis and creating favorable conditions for subsequent deep adsorption.

[0041] See Figure 1 and Figure 2 In one embodiment of the present invention, an installation component 11 is further provided at the bottom of the main frame 1;

[0042] The mounting component 11 includes a mounting base 111, which is placed at the four bottom corners of the main frame 1, and the bottom of the mounting base 111 is provided with mounting holes 112.

[0043] The mounting base 111 can be fixedly installed by passing mounting bolts through the mounting hole 112 and connecting it to the ground.

[0044] See Figure 1 and Figure 2 In one embodiment of the present invention, an operation panel 12 is installed on the main frame 1. The operation panel 12 is configured to control the operation of each drive device on the entire device.

[0045] In this invention, the operation panel 12 is electrically connected to each driving device via wires.

[0046] See Figure 1 and Figure 2 In one embodiment of the present invention, the impurity filtration synchronous electrolysis mechanism 2 further includes a first rotating component 25, which is placed on the side wall of the main frame 1.

[0047] The first rotating assembly 25 includes a first motor 251 fixedly installed on the outer wall of the main frame 1. A first bevel gear 252 is installed on the motor shaft of the first motor 251. A second bevel gear 253 is meshed on the first bevel gear 252. The second bevel gear 253 is connected to the rotating shaft 24.

[0048] The first motor 251 operates, driving the first bevel gear 252 to rotate. The first bevel gear 252 drives the meshing second bevel gear 253 to rotate. The second bevel gear 253 can drive the rotating shaft 24 to adjust the rotation angle. The rotating shaft 24 drives the filter plate 21 to rotate. The bottom end of the filter plate 21 rotates into the impurity storage tank 13. The inclined surface of the filter plate 21 discharges the impurities filtered in the sedimentation groove 23 into the impurity storage tank 13 for impurity storage treatment.

[0049] See Figure 1 and Figure 2 The supporting component 26 includes a support frame 262, which is slidably mounted on the support plate 15, and the bottom support of the support frame 262 is placed at the bottom of the filter plate 21.

[0050] It also includes a telescopic rod 261, which is placed on the support plate 15 and the top telescopic end of the telescopic rod 261 is connected to the support frame 262;

[0051] The telescopic rod 261 works to drive the support frame 262 to move up and down, thereby enabling the angle adjustment of the filter plate 21.

[0052] See Figure 1 and Figure 8 In one embodiment of the present invention, the air supply assembly 28 includes an air supply branch pipe 281 and an air supply main pipe 282. The air supply branch pipe 281 is electrically connected to each aeration nozzle 27, and the air supply main pipe 282 is provided at the center of the air supply branch pipe 281. The air supply main pipe 282 enables the moving air supply to each air supply branch pipe 281, thereby realizing the aeration treatment of each aeration nozzle 27. This not only facilitates the electrolysis treatment of the equipment, but also makes it convenient to blow out the impurities deposited inside each sedimentation groove 23, thereby facilitating the discharge treatment of the deposited impurities.

[0053] See Figure 1 , Figure 5 and Figure 6 In one embodiment of the present invention, the impurity filtration synchronous electrolysis mechanism 2 further includes an electrolytic battery 210. The electrolytic battery 210 is placed at the bottom of the filter plate 21, and both ends of the electrolytic battery 210 are connected to each of the electrolytic rods 29 through power supply lines 211. Power is supplied to each of the electrolytic rods 29 through the electrolytic battery 210 and the power supply lines 211, thereby facilitating the electrolysis of the electrolytic rods 29.

[0054] See Figure 1 , Figure 7 , Figure 8 and Figure 9In one embodiment of the present invention, a wastewater treatment device for the production of p-chlorobenzonitrile further includes:

[0055] Activated carbon adsorption mechanism 3, the activated carbon adsorption mechanism 3 includes a filter tank 31, the filter tank 31 is placed on the main frame 1 located on both sides of the impurity storage tank 13 and the wastewater storage tank 14;

[0056] The filter tank 31 is designed to allow for sequential filtration of the wastewater after electrolysis.

[0057] It also includes a liquid extraction component 32, which extracts wastewater from the wastewater storage tank 14 into the filter tank 31 for activated carbon adsorption.

[0058] See Figure 1 and Figure 8 In one embodiment of the present invention, the filter tank 31 is provided with mounting sleeves 311 at both ends, and the mounting sleeves 311 are stably connected to the main frame 1.

[0059] See Figure 1 and Figure 9 In one embodiment of the present invention, a filter element 312 is provided inside the filter tank 31. A plurality of connecting cavities 313 are opened inside the filter element 312. An activated carbon adsorption plate 314 is provided inside the connecting cavities 313. A rotating cleaning component 315 for cleaning the activated carbon adsorption plate 314 is provided at the center of the filter element 312. The wastewater after electrolysis is pumped into the filter tank 31 and filtered through the filter element 312. The filtered wastewater is then filtered and adsorbed through the activated carbon adsorption plate 314. The rotating cleaning component 315 is used to rotate and clean the top of the activated carbon adsorption plate 314, thereby achieving the wastewater adsorption treatment of the activated carbon adsorption plate 314.

[0060] See Figure 1 and Figure 9 In one embodiment of the present invention, the rotating cleaning assembly 315 includes a stirring shaft 3153, which is located at the center of the filter element 312 and the activated carbon adsorption plate 314. A stirring cleaning rod 3154 is installed on the stirring shaft 3153 and is located on the top of the activated carbon adsorption plate 314.

[0061] It also includes a sealing cover 3151, which is placed at the bottom center of the filter element 312. A third motor 3152 is installed inside the sealing cover 3151, and the motor shaft of the third motor 3152 is connected to the stirring shaft 3153.

[0062] The stirring shaft 3153 is driven to rotate by the third motor 3152. The stirring shaft 3153 drives the stirring and cleaning rod 3154 to perform rotational cleaning and filtration on the top surface of the activated carbon adsorption plate 314. This removes and disperses the flocculent matter or soft blockages attached to the surface of the activated carbon adsorption plate 314. Some of these cleaned substances are discharged with the water flow, while the denser ones settle at the bottom of the filter tank 31 and can be cleaned during regular maintenance.

[0063] See Figure 1 and Figure 7 In one embodiment of the present invention, the liquid extraction assembly 32 includes a liquid extraction pump 321 fixedly installed on the outer wall of the wastewater storage tank 14. The top of the liquid extraction pump 321 is connected to the filter cover 323 through the liquid extraction pipe 322. The filter cover 323 is placed at the bottom of the inside of the wastewater storage tank 14.

[0064] It also includes a liquid supply pipe 324, one end of which is connected to a liquid pump 321, and the other end of which is connected to a filter tank 31 via a connecting pipe 33.

[0065] The pump 321 operates and extracts wastewater through the extraction pipe 322 and the filter cover 323. The extracted wastewater is then discharged into each filter tank 31 for filtration and adsorption through the supply pipe 324 and the connecting pipe 33.

[0066] See Figure 1 and Figure 7 In one embodiment of the present invention, the activated carbon adsorption mechanism 3 further includes a drain assembly 34, which is placed at the bottom of the main frame 1. The drain assembly 34 includes a first drain pipe 341 that is connected to the bottom of each filter tank 31. A second drain pipe 342 is provided at the center of the first drain pipe 341. The treated wastewater is discharged through the first drain pipe 341 and the second drain pipe 342.

[0067] The wastewater treatment process of the p-chlorobenzonitrile production wastewater treatment equipment includes:

[0068] S1. By slowly adding the wastewater from the production of p-chlorobenzonitrile to the filter tank 22 opened in the filter plate 21, the wastewater flows slowly in the filter tank 22, and the sedimentation groove 23 opened in the filter tank 22 achieves the filtration and sedimentation treatment of impurities in the wastewater.

[0069] S2. During the slow flow and sedimentation of wastewater, air is supplied to the aeration nozzle 27 through the air supply branch pipe 281 and the air supply main pipe 282 set on the air supply component 28, which works in conjunction with the electrolytic battery 210. The electrolytic battery 210 supplies power to the electrolytic rod 29 through the power supply line 211, and the electrolytic rod 29 realizes synchronous aeration and electrolysis of wastewater during the slow flow.

[0070] S3. The wastewater after filtration and electrolysis flows into the wastewater storage tank 14. The pump 321 installed on the pumping assembly 32 works. The pump 321 filters and extracts the wastewater after electrolysis through the pumping pipe 322 and the filter cover 323. The extracted wastewater solution is supplied to each filter tank 31 through the supply pipe 324 and the connecting pipe 33.

[0071] S4. Wastewater is treated by activated carbon adsorption through the filter element 312 and activated carbon adsorption plate 314 set inside the filter tank 31. During the adsorption process, the activated carbon adsorption plate 314 is operated by the third motor 3152. The third motor 3152 drives the stirring shaft 3153 to rotate. The stirring shaft 3153 drives the stirring and cleaning rod 3154 to rotate and clean the impurities filtered on the surface of the activated carbon adsorption plate 314, thereby realizing the continuous adsorption treatment of the activated carbon adsorption plate 314.

[0072] S5. The support frame 262 is driven to move downward by the telescopic rod 261 of the support component 26. The bottom of the support frame 262 separates from the bottom of the filter plate 21 and works in conjunction with the first motor 251 in the first rotating component 25. The first motor 251 drives the first bevel gear 252 to drive the meshing second bevel gear 253 to rotate. The second bevel gear 253 drives the rotating shaft 24 to rotate. The rotating shaft 24 drives the filter plate 21 to rotate. During the rotation, the impurities settled in the sedimentation groove 23 at the bottom of the filter groove 22 on the filter plate 21 will fall into the impurity storage tank 13 along the inclined surface of the filter groove 22 for impurity storage. During the discharge of the settled impurities, the impurities settled and filtered in the sedimentation groove 23 are blown out by the air supply component 28 and the aeration nozzle 27, thereby facilitating the cleaning of the impurities in the sedimentation groove 23.

[0073] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A p-chlorobenzonitrile production wastewater treatment device, comprising a main frame (1), the bottom end of the main frame (1) is provided with an impurity storage tank (13) and a wastewater storage tank (14), and a support plate (15) is fixedly arranged on the main frame (1) at the top of the impurity storage tank (13) and the wastewater storage tank (14) respectively, characterized in that, Also includes: Impurity filtration synchronous electrolysis mechanism (2), the impurity filtration synchronous electrolysis mechanism (2) includes a filter plate (21), a filter groove (22) is provided on the top of the filter plate (21), and a plurality of sedimentation grooves (23) are provided on the bottom of the filter groove (22). Electrolytic rods (29) for electrolyzing flowing wastewater are embedded at both ends of the sedimentation groove (23). The bottom of the sedimentation groove (23) is provided with several aeration nozzles (27); The filter plate (21) is provided with an air supply component (28) at the bottom, and the air supply component (28) is connected to each aeration nozzle (27); The outer end of the filter plate (21) is rotatably connected to the main frame (1) via a rotating shaft (24), and a support assembly (26) for bearing the filter plate (21) is installed on the support plate (15). The impurity filtration synchronous electrolysis mechanism (2) further includes a first rotating component (25), which is placed on the side wall of the main frame (1); The first rotating assembly (25) includes a first motor (251) fixedly installed on the outer wall of the main frame (1), a first bevel gear (252) is installed on the motor shaft of the first motor (251), a second bevel gear (253) is meshed on the first bevel gear (252), and the second bevel gear (253) is connected to the rotating shaft (24); The impurity filtration synchronous electrolysis mechanism (2) also includes a support component (26); The support assembly (26) includes a support frame (262), which is slidably disposed on the support plate (15), and the bottom support of the support frame (262) is placed at the bottom of the filter plate (21); It also includes a telescopic rod (261), which is placed on the support plate (15), and the top telescopic end of the telescopic rod (261) is connected to the support frame (262).

2. The wastewater treatment equipment for the production of p-chlorobenzonitrile according to claim 1, characterized in that, The main frame (1) is also provided with an installation component (11) at its bottom. The mounting component (11) includes a mounting base (111), which is placed at the four bottom corners of the main frame (1), and mounting holes (112) are provided at the bottom of the mounting base (111).

3. The wastewater treatment equipment for the production of p-chlorobenzonitrile according to claim 1, characterized in that, An operation panel (12) is installed on the main frame (1).

4. The wastewater treatment equipment for the production of p-chlorobenzonitrile according to claim 1, characterized in that, The gas supply assembly (28) includes a gas supply branch pipe (281) and a gas supply main pipe (282); The gas supply branch pipe (281) is connected to each aeration nozzle (27), and a gas supply main pipe (282) is provided at the center of the gas supply branch pipe (281).

5. The wastewater treatment equipment for the production of p-chlorobenzonitrile according to claim 1, characterized in that, The impurity filtration synchronous electrolysis mechanism (2) also includes an electrolytic battery (210), which is placed at the bottom of the filter plate (21), and the two ends of the electrolytic battery (210) are connected to each of the electrolytic rods (29) through power supply lines (211).

6. The wastewater treatment equipment for the production of p-chlorobenzonitrile according to claim 1, characterized in that, A wastewater treatment device for the production of p-chlorobenzonitrile further includes: The activated carbon adsorption mechanism (3) includes a filter tank (31), which is placed on the main frame (1) located on both sides of the impurity storage tank (13) and the wastewater storage tank (14). It also includes a liquid extraction component (32), which extracts wastewater from the wastewater storage tank (14) into the filter tank (31) for activated carbon adsorption. The liquid extraction assembly (32) includes a liquid extraction pump (321) fixedly installed on the outer wall of the wastewater storage tank (14). The top of the liquid extraction pump (321) is connected to the filter cover (323) through the liquid extraction pipe (322). The filter cover (323) is placed at the bottom inside the wastewater storage tank (14). It also includes a liquid supply pipe (324), one end of which is connected to a liquid pump (321), and the other end of which is connected to a filter tank (31) via a connecting pipe (33).

7. The wastewater treatment equipment for the production of p-chlorobenzonitrile according to claim 1, characterized in that, The filter tank (31) is equipped with a filter element (312), and the filter element (312) has several connecting cavities (313) inside. The connecting cavities (313) are equipped with activated carbon adsorption plates (314). A rotating cleaning assembly (315) for cleaning the activated carbon adsorption plates (314) is provided at the center of the filter element (312). The rotating cleaning assembly (315) includes a stirring shaft (3153), which is located at the center of the filter element (312) and the activated carbon adsorption plate (314). A stirring cleaning rod (3154) is installed on the stirring shaft (3153) and is located on the top of the activated carbon adsorption plate (314). It also includes a sealing cover (3151), which is placed at the bottom center of the filter element (312). A third motor (3152) is installed inside the sealing cover (3151), and the motor shaft of the third motor (3152) is connected to the stirring shaft (3153).

8. The wastewater treatment equipment for the production of p-chlorobenzonitrile according to claim 1, characterized in that, The activated carbon adsorption mechanism (3) also includes a drain assembly (34), which is located at the bottom of the main frame (1); The drainage assembly (34) includes a first drainage pipe (341) that is connected to the bottom of each filter tank (31), and a second drainage pipe (342) is provided at the center of the first drainage pipe (341).

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