A kind of dichlorobenzidine salt production wastewater resource utilization equipment and method

Abstract

The invention relates to the technical field of sewage treatment, and provides a resource utilization device for dichlorobenzidine salt production sewage and a method thereof. The device comprises a sewage purification tank body, a first rotating assembly, a second rotating assembly and a microorganism attachment assembly, wherein the first rotating assembly comprises a rotating part, the rotating part comprises a first driving member, a central column, a first transmission gear and a curved guide rail, the second rotating assembly comprises a central tube shell, an axial guide rail, a rotating tube, a second transmission gear and a second driving member, and the microorganism attachment assembly comprises a base plate, a microorganism attachment part, a radial tube, a ball head protrusion and a limit ring, which can not only control the microorganism attachment assembly to continuously switch positions between the bottom and the top of the sewage purification tank body along the axial guide rail, but also adjust the position of the microorganism attachment assembly with the rotating tube as the axis, thereby achieving the purpose of uniformly distributing microorganisms in sewage of different heights or different pollutant concentrations, and having the characteristics of uniform contact between microorganisms and pollutants and high sewage purification efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a resource utilization device and a method for sewage produced by dichlorobenzidine salt. Background Art

[0002] Since the production process of dichlorobenzidine salt involves multiple chemical reactions and raw materials, wastewater with multiple components will be produced. Since the wastewater produced by dichlorobenzidine salt may contain multiple harmful substances, it usually needs to undergo multiple treatment processes such as physical, chemical and biological treatments, such as using sedimentation to remove suspended matter, using neutralization to treat acidic and alkaline wastewater, and using microorganisms to degrade organic matter.

[0003] After searching, the existing announcement number CN118405788B discloses an anaerobic treatment device and method for resource utilization of rural domestic sewage, including a tank body, an anaerobic treatment mechanism and a negative pressure mechanism, the anaerobic treatment mechanism includes a spiral guide spiral plate welded on the inner surface of the anaerobic tank, and a biological attachment bed for anaerobic attachment is installed in the hole opened on the surface of the guide spiral plate; a negative pressure mechanism, the negative pressure mechanism includes a negative pressure air pump for exhaust installed at the upper end of the anaerobic tank, and a pressure controller for pressure monitoring is also installed at the upper end of the anaerobic tank; through the anaerobic treatment device composed of the tank body, the anaerobic treatment mechanism and the negative pressure mechanism, it is convenient for the negative pressure mechanism to form negative pressure in the tank body, thereby facilitating anaerobic organisms to attach to the anaerobic treatment mechanism in the anaerobic tank to treat rural domestic sewage, so that the rural domestic sewage can be utilized as a resource after anaerobic treatment.

[0004] The above-mentioned sewage resource utilization anaerobic treatment device also has the following defects when in use: In the sewage treatment system, microorganisms at different locations may face different nutrient concentrations. For example, microorganisms near the sewage inlet may be exposed to higher concentrations of pollutants, while microorganisms near the drain outlet may face lower concentrations of nutrients and organic matter. If the microorganisms are unevenly distributed, some areas may suffer from malnutrition. Microbial communities at different locations may have different types and functions, which not only leads to a decrease in microbial activity, but also affects the efficiency of sewage treatment and the overall treatment effect. Summary of the invention

[0005] The object of the present invention is to provide a device and method for resource utilization of wastewater produced by dichlorobenzidine salt, aiming to solve the problem that the position of microorganisms between the sewage inlet and the sewage outlet cannot be adjusted in the existing anaerobic treatment device for resource utilization of sewage.

[0006] To achieve the above object, the present invention provides the following technical solution: a dichlorobenzidine salt production wastewater resource utilization equipment, comprising a wastewater purification tank, wherein the upper and lower ends of the wastewater purification tank are respectively provided with a wastewater inlet pipe and a sludge discharge pipe, and the side wall of the wastewater purification tank is provided with a purified water circulation pipe, and further comprising:

[0007] A first rotating assembly, the first rotating assembly comprises a rotating part, the rotating part comprises a first driving member, a center column, a first transmission gear and a curved guide rail, the first transmission gear is fixedly connected to the center column, the first driving member is in transmission connection with the first transmission gear, and a curved guide rail is arranged on the surface of the center column;

[0008] A second rotating assembly, the second rotating assembly includes a central tube shell, an axial guide rail, a rotating tube, a second transmission gear and a second driving member, the rotating tube is fixedly connected to the central tube shell, the second transmission gear is fixedly connected to the rotating tube, the central column runs through the central tube shell and the rotating tube, the first driving member and the second driving member are respectively fixedly connected to the second transmission gear and the sewage purification tank body, the second driving member is transmission-connected to the second transmission gear, a plurality of axial guide rails are arranged on the surface of the central tube shell, and the rotating tube and the central column are both connected to the sewage purification tank body;

[0009] A microorganism attachment component, the microorganism attachment component includes a substrate, a microorganism attachment portion, a radial tube, a ball head protrusion and a limit ring, the ball head protrusion and the limit ring are both fixedly connected to the radial tube, the ball head protrusion is slidably connected in the curved guide rail, the radial tube is slidably connected to the axial guide rail, the two limit rings are symmetrically distributed on the inner and outer sides of the central tube shell, the substrate is arranged at one end of the radial tube away from the central tube shell, and the microorganism attachment portion is fixedly connected to both sides of the substrate.

[0010] A method for resource utilization of wastewater produced by dichlorobenzidine salt, comprising:

[0011] S100, sewage is injected into the sewage purification tank through the sewage inlet pipe, and the first driving member is used to control the rotation of the central column. The rotating central column drives the radial tube and the base plate to move along the axial guide rail by means of a sliding connection between the curved guide rail and the ball head protrusion. After the central column rotates for several circles, a plurality of microorganism attachment assemblies that are symmetrically distributed about the central column axis and uniformly distributed along the curved guide rail can continuously switch positions between the bottom and the top of the sewage purification tank along the axial guide rail.

[0012] S200. While adjusting the axial positions of several microorganism attachment assemblies based on the method of step S100, the second driving member is used to control the central tube shell, the first rotating assembly and the microorganism attachment assembly to rotate around the axis of the rotating tube, so that the positions of several microorganism attachment assemblies can be adjusted with the rotating tube as the axis, thereby achieving the purpose of uniform distribution of microorganisms in sewage of different heights or different pollutant concentrations, while improving the microbial activity and sewage purification efficiency.

[0013] The beneficial effect of the present invention is that it can not only control a plurality of microorganism attachment assemblies to continuously change positions between the bottom and the top of the sewage purification tank along the axial guide rail, but also can adjust the positions of a plurality of microorganism attachment assemblies with the rotating tube as the axis, thereby achieving the purpose of uniform distribution of microorganisms in sewage of different heights or different pollutant concentrations, and has the characteristics of uniform contact between microorganisms and pollutants and high sewage purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a plan cross-sectional view of the present invention.

[0015] Figure 2 It is an exploded view of the present invention.

[0016] Figure 3 FIG. 4 is an exploded view of the first rotating assembly according to an embodiment of the present invention.

[0017] Figure 4 It is a three-dimensional diagram of the sealing portion of an embodiment of the present invention.

[0018] Figure 5 It is a stereoscopic diagram of a microorganism attachment assembly according to an embodiment of the present invention.

[0019] Figure 6 It is an assembly diagram of the first rotating component and the microorganism attachment component according to an embodiment of the present invention.

[0020] Figure 7 It is a three-dimensional diagram of the second rotating assembly according to an embodiment of the present invention.

[0021] Figure 8 It is an assembly diagram of the first rotating assembly, the second rotating assembly and the microorganism attachment assembly according to an embodiment of the present invention.

[0022] Fig. 9 It is a stereogram of the present invention.

[0023] Reference numerals: 1-sewage purification tank, 11-sewage inlet pipe, 12-purified water circulation pipe, 13-sludge discharge pipe;

[0024] 2 - First rotating assembly, 21 - Rotating part, 211 - First driving part, 212 - Central column, 213 - Filter disc, 214 - Curved guide rail, 215 - First transmission gear, 216 - Particulate emission channel, 217 - Limiting hole, 22 - Sealing part, 221 - Collar, 222 - C - shaped rod, 223 - Sealing plug, 224 - Return spring, 225 - Piston rod;

[0025] 3 - Second rotating assembly, 31 - Central tube housing, 311 - Axial guide rail, 32 - Rotating housing, 321 - Axial rod, 3211 - Tooth - groove rail, 322 - Radial rod, 33 - Second driving part, 34 - Rotating tube, 35 - Second transmission gear, 36 - Cleaning rod;

[0026] 4 - Microbial attachment assembly, 41 - Substrate, 42 - Microbial attachment part, 421 - Rubber column, 422 - Rubber cluster, 43 - Radial tube, 44 - Ball - head protrusion, 45 - Limiting ring, 46 - Rotating shaft, 47 - Third transmission gear, 48 - Push rod;

[0027] 5 - Angle sensor, 6 - Control display. Detailed implementation mode

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further details the present invention in combination with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] The following describes the specific implementation of the present invention in detail in combination with specific embodiments.

[0030] Please refer to Figures 1 to 9 , in an embodiment of the present invention, a device for resource utilization of sewage in the production of dichlorobenzidine salt includes a sewage purification tank body 1. Sewage inlet pipes 11 and sludge discharge pipes 13 are respectively arranged at the upper and lower ends of the sewage purification tank body 1. A purified water circulation pipe 12 is arranged on the side wall of the sewage purification tank body 1. It further includes:

[0031] The first rotating assembly 2, the first rotating assembly 2 includes a rotating part 21. The rotating part 21 includes a first driving part 211, a central column 212, a first transmission gear 215 and a curved guide rail 214. The first transmission gear 215 is fixedly connected to the central column 212. The first driving part 211 is in transmission connection with the first transmission gear 215. A curved guide rail 214 is arranged on the surface of the central column 212;

[0032] The second rotating assembly 3 comprises a central tube shell 31, an axial guide rail 311, a rotating tube 34, a second transmission gear 35 and a second driving member 33. The rotating tube 34 is fixedly connected to the central tube shell 31, the second transmission gear 35 is fixedly connected to the rotating tube 34, the central column 212 passes through the central tube shell 31 and the rotating tube 34, the first driving member 211 and the second driving member 33 are respectively fixedly connected to the second transmission gear 35 and the sewage purification tank body 1, the second driving member 33 is transmission-connected to the second transmission gear 35, a plurality of axial guide rails 311 are arranged on the surface of the central tube shell 31, the rotating tube 34 and the central column 212 are both connected to the sewage purification tank body 1;

[0033] A microorganism attachment component 4 includes a substrate 41, a microorganism attachment portion 42, a radial tube 43, a ball head protrusion 44 and a limit ring 45. The ball head protrusion 44 and the limit ring 45 are both fixedly connected to the radial tube 43. The ball head protrusion 44 is slidably connected in the curved guide rail 214. The radial tube 43 is slidably connected to the axial guide rail 311. The two limit rings 45 are symmetrically distributed on the inner and outer sides of the central tube shell 31. The substrate 41 is arranged at one end of the radial tube 43 away from the central tube shell 31. The microorganism attachment portion 42 is fixedly connected to both sides of the substrate 41.

[0034] See also Figure 1 and Figure 7 Furthermore, the second rotating assembly 3 also includes radial rods 322 , and a plurality of the radial rods 322 are fixedly connected between the rotating shell 32 and the central tube shell 31 , and the bottom of the sewage purification tank body 1 is in sliding contact with the radial rods 322 .

[0035] See also Figure 5 Furthermore, the microorganism attachment portion 42 includes a rubber column 421 and a rubber cluster 422 , a plurality of the rubber clusters 422 are embedded on the surface of the rubber column 421 , the rubber cluster 422 has a snowflake shape, and the rubber column 421 is embedded in the surface of the substrate 41 .

[0036] In the embodiment of the present invention, an angle sensor and a control display 6 are also included. The center column 212 and the rotating tube 34 are fixedly connected with angle sensors. The angle sensor is used to monitor the rotation angle of the center column 212 and the rotating tube 34 in real time, and then obtain the spatial coordinates of the microorganism attachment part 42 according to the rotation angle. The control display 6 is fixedly connected to the sewage purification tank body 1, and the angle sensor is communicatively connected to the control display 6.

[0037] See also Figure 7 and Figure 8, in an embodiment of the present invention, the second rotating assembly 3 further includes a rotating shell 32, an axial rod 321, and a tooth groove rail 3211. The rotating shell 32 is fixedly connected to the central pipe shell 31. An axial rod 321 is provided on the side wall of the rotating shell 32, and a plurality of tooth groove rails 3211 are uniformly arranged on the surface of the axial rod 321.

[0038] Please refer to Figures 5 to 8 , further, the microorganism attachment assembly 4 further includes a rotating shaft 46 and a third transmission gear 47. One end of the rotating shaft 46 is movably connected inside the radial pipe 43, the third transmission gear 47 is fixedly connected to the other end of the rotating shaft 46, the substrate 41 is fixedly connected to the rotating shaft 46, and the tooth groove rail 3211 is in transmission connection with the third transmission gear 47.

[0039] In an embodiment of the present invention, the third transmission gear 47 reciprocally moving along the axial guide rail 311 can also achieve the purpose of driving the substrate 41 to rotate about the axis of the rotating shaft 46 by being in transmission connection with the tooth groove rail 3211.

[0040] Please refer to Figure 3 and Figure 8 , in an embodiment of the present invention, the rotating part 21 further includes a filter disc 213, a particulate matter discharge channel 216, and a limiting hole 217. The filter disc 213 is fixedly connected to one end of the central column 212 close to the sewage inlet pipe 11. A particulate matter discharge channel 216 is provided at the central positions of the central column 212 and the filter disc 213, and limiting holes 217 are provided on the surface of the filter disc 213.

[0041] Please refer to Figure 4 and Figure 6 , Figure 8 , further, the first rotating assembly 2 further includes a sealing part 22. The sealing part 22 includes a collar 221, a U-shaped rod 222, a sealing plug 223, a return spring 224, and a piston rod 225. Both ends of the U-shaped rod 222 are fixedly connected to the collar 221. The collar 221 is movably sleeved on the surface of the central column 212. The U-shaped rod 222 penetrates through the limiting hole 217. The return spring 224 is connected between the filter disc 213 and the collar 221. The piston rod 225 is fixedly connected between the U-shaped rod 222 and the sealing plug 223. The sealing plug 223 is inserted and connected to the particulate matter discharge channel 216.

[0042] Please refer to Figure 5 and Figure 6 , further, the microorganism attachment assembly 4 further includes a push rod 48. Two or four push rods 48 are fixedly connected to the surface of the radial pipe 43. The push rod 48 close to the sewage inlet pipe 11 is in sliding contact with the surface of the collar 221.

[0043] Further, the second rotating assembly 3 further includes a radial rod 322 and a cleaning rod 36. The cleaning rod 36 is in sliding contact with the surface of the filter disc 213. A plurality of the radial rods 322 are fixedly connected between the rotating shell 32 and the central tube shell 31. The bottom of the sewage purification tank body 1 is in sliding contact with the radial rod 322.

[0044] In the embodiment of the present invention, the number of the ejector rods 48 is less than the number of the radial tubes 43 or the substrate 41, aiming to reduce the frequency of opening the sealing plug 223, clean large particle impurities while minimizing the discharge of untreated sewage as much as possible. During the process of injecting sewage into the sewage purification tank body 1 through the sewage inlet pipe 11, the filter disc 213 is used to filter large particle impurities in the sewage to prevent large particle impurities from blocking microorganisms and reducing the purification efficiency. The cleaning rod 36 rotating relative to the filter disc 213 is used to clean the attached large particle impurities. With the impact force of the sewage, the large particle impurities flow along the conical filter disc 213 to the particulate matter discharge channel 216.

[0045] A method for resource utilization of sewage in the production of dichlorobenzidine salt, comprising:

[0046] S100. Using the first driving member 211 to control the central column 212 to rotate a certain angle at a certain frequency. The rotating central column 212 drives the radial tube 43 and the substrate 41 to move a certain distance along the axial guide rail 311 in a manner of sliding connection between the curved guide rail 214 and the ball head protrusion 44. After the central column 212 rotates several weeks, a plurality of microorganism attachment assemblies 4 that are axially symmetrically distributed about the central column 212 and evenly distributed along the curved guide rail 214 can continuously switch positions between the bottom and the top of the sewage purification tank body 1 along the axial guide rail 311. When the ejector rod 48 drives the C-shaped rod 222 to move a certain distance along the axis through the collar 221, the sealing plug 223 disengages from the particulate matter discharge channel 216. At this time, the sewage flushes the particulate impurities into the particulate matter discharge channel 216 and discharges them. As the central column 212 rotates, the ejector rod 48 disengages from the collar 221, and the elastic force of the return spring 224 drives the sealing plug 223 to automatically insert into the particulate matter discharge channel 216. During a certain period of time when the sewage is stationary in the sewage purification tank body 1, again according to the above method of controlling the movement of the microorganism attachment assembly 4 by the first driving member 211, control the substrate 41 and the microorganism attachment portion 42 to continuously switch positions between the bottom and the top of the sewage purification tank body 1 along the axial guide rail 311;

[0047] S200, while adjusting the axial positions of several microorganism attachment components 4 based on the method of step S100, the second driving member 33 is used to control the central tube shell 31, the first rotating component 2 and the microorganism attachment component 4 to rotate around the axis of the rotating tube 34 at a certain frequency, so that the positions of several microorganism attachment components 4 can be adjusted with the rotating tube 34 as the axis. The third transmission gear 47 that reciprocates along the axial guide rail 311 can also achieve the purpose of driving the substrate 41 to rotate with the rotating shaft 46 as the axis through the transmission connection with the toothed rail 3211. On the one hand, the rotating substrate 41 can exchange the positional relationship of the microorganism attachment parts 42 on both sides, and on the other hand, it can stir the sewage, so that the microorganisms attached to the surface of the rubber cluster 422 are evenly contacted with the pollutants in the sewage, thereby achieving the purpose of uniform distribution of microorganisms in sewage with different heights or different pollutant concentrations, while improving the microbial activity and sewage purification efficiency.

[0048] S300. After the sewage purification is completed, the purified water in the sewage purification tank 1 is transported to other tanks or the purified water discharge terminal by using the purified water circulation pipe 12, and the sludge deposited at the bottom that cannot be treated is discharged by using the sludge discharge pipe 13. When the second rotating component 3 is controlled to rotate by the second driving member 33, the rotating radial rod 322 can clean the sludge attached to the bottom of the tank into the sludge discharge pipe 13.

[0049] In summary, the present application utilizes a structural design in which the center column 212, the curved guide rail 214, the center tube shell 31, the axial guide rail 311, the second drive member 33 and the microorganism attachment assembly 4 cooperate with each other. It can not only control a number of microorganism attachment assemblies 4 to continuously change positions between the bottom and the top of the sewage purification tank 1 along the axial guide rail 311, but also can adjust the positions of a number of microorganism attachment assemblies 4 with the rotating tube 34 as the axis, thereby achieving the purpose of uniform distribution of microorganisms in sewage of different heights or different pollutant concentrations, and has the characteristics of uniform contact between microorganisms and pollutants and high sewage purification efficiency.

[0050] The present application utilizes a structural design in which the axial guide rail 311, the toothed rail 3211, the rotating shaft 46, the base plate 41 and the third transmission gear 47 cooperate with each other. On the one hand, it can exchange the positional relationship of the microorganism attachment parts 42 on both sides, and on the other hand, it can stir the sewage, so that the microorganisms attached to the surface of the rubber cluster 422 are in uniform contact with the pollutants in the sewage.

[0051] This application utilizes the structural design in which the collar 221, the U-shaped rod 222, the ejector rod 48, the sealing plug 223, and the return spring 224 cooperate with each other. By means of the reciprocating linear motion of the ejector rod 48 following the microbial attachment component 4 along the axial guide rail 311, the sealing plug 223 can be driven to disengage from the particulate discharge channel 216 at a certain frequency, thus having the characteristics of automatically cleaning and discharging large particulate impurities, thereby preventing large particulate impurities from blocking the microorganisms and reducing the purification efficiency.

[0052] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.

[0053] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dichlorobenzidine salt production wastewater resource utilization device, comprising a wastewater purification tank (1), wherein the wastewater purification tank (1) is provided with a wastewater inlet pipe (11) and a sludge discharge pipe (13) at the upper and lower ends thereof, respectively, and a purified water circulation pipe (12) is provided on the side wall of the wastewater purification tank (1), characterized in that: Also includes: A first rotating assembly (2), the first rotating assembly (2) comprising a rotating part (21), the rotating part (21) comprising a first driving member (211), a center column (212), a first transmission gear (215) and a curved guide rail (214), the first transmission gear (215) being fixedly connected to the center column (212), the first driving member (211) being transmission-connected to the first transmission gear (215), and a curved guide rail (214) being provided on a surface of the center column (212); A second rotating assembly (3), the second rotating assembly (3) comprising a central tube shell (31), an axial guide rail (311), a rotating tube (34), a second transmission gear (35) and a second driving member (33); the rotating tube (34) is fixedly connected to the central tube shell (31); the second transmission gear (35) is fixedly connected to the rotating tube (34); the central column (212) passes through the central tube shell (31) and the rotating tube (34); the first driving member (211) and the second driving member (33) are respectively fixedly connected to the second transmission gear (35) and the sewage purification tank body (1); the second driving member (33) is transmission-connected to the second transmission gear (35); a plurality of axial guide rails (311) are provided on the surface of the central tube shell (31); the rotating tube (34) and the central column (212) are both connected to the sewage purification tank body (1); A microorganism attachment assembly (4), the microorganism attachment assembly (4) comprising a substrate (41), a microorganism attachment portion (42), a radial tube (43), a ball head protrusion (44) and a limiting ring (45), the ball head protrusion (44) and the limiting ring (45) are both fixedly connected to the radial tube (43), the ball head protrusion (44) is slidably connected in a curved guide rail (214), the radial tube (43) is slidably connected to an axial guide rail (311), two limiting rings (45) are symmetrically distributed on both sides of the center tube shell (31), the substrate (41) is arranged at one end of the radial tube (43) away from the center tube shell (31), and the microorganism attachment portion (42) is fixedly connected to both sides of the substrate (41); After the central column (212) rotates several times, a plurality of microorganism attachment assemblies (4) that are symmetrically distributed about the central column (212) and evenly distributed along the curved guide rail (214) can continuously switch positions between the bottom and the top of the sewage purification tank (1) along the axial guide rail (311).

2. The dichlorobenzidine salt production wastewater resource utilization equipment according to claim 1, characterized in that: The second rotating assembly (3) further comprises a rotating shell (32), an axial rod (321) and a toothed rail (3211); the rotating shell (32) is fixedly connected to the central tube shell (31); the side wall of the rotating shell (32) is provided with an axial rod (321); and a plurality of toothed rails (3211) are evenly arranged on the surface of the axial rod (321).

3. The resource utilization equipment for dichlorobenzidine salt production wastewater according to claim 2, characterized in that: The microbial attachment component (4) further includes a rotating shaft (46) and a third transmission gear (47). One end of the rotating shaft (46) is movably connected inside the radial pipe (43), the third transmission gear (47) is fixedly connected to the other end of the rotating shaft (46), the substrate (41) is fixedly connected to the rotating shaft (46), and the tooth groove track (3211) is in transmission connection with the third transmission gear (47).

4. The equipment for resource utilization of wastewater produced by dichlorobenzidine salt according to claim 3, characterized in that: The rotating part (21) further includes a filter disc (213), a particulate matter discharge channel (216), and a limiting hole (217). The filter disc (213) is fixedly connected to one end of the central column (212) close to the sewage inlet pipe (11). A particulate matter discharge channel (216) is arranged at the central positions of the central column (212) and the filter disc (213), and limiting holes (217) are arranged on the surface of the filter disc (213).

5. The equipment for resource utilization of wastewater produced by dichlorobenzidine salt according to claim 4, characterized in that: The first rotating assembly (2) further includes a sealing part (22). The sealing part (22) includes a collar (221), a U-shaped rod (222), a sealing plug (223), a return spring (224), and a piston rod (225). Both ends of the U-shaped rod (222) are fixedly connected to the collar (221). The collar (221) is movably sleeved on the surface of the central column (212). The U-shaped rod (222) passes through the limiting hole (217). The return spring (224) is connected between the filter disc (213) and the collar (221). The piston rod (225) is fixedly connected between the U-shaped rod (222) and the sealing plug (223). The sealing plug (223) is in plug-in connection with the particulate matter discharge channel (216).

6. The equipment for resource utilization of wastewater from dichlorobenzidine salt production according to claim 5, characterized in that: The microbial attachment component (4) further includes a push rod (48). The push rod (48) is fixedly connected to the surface of two or four of the radial pipes (43). The push rod (48) close to the sewage inlet pipe (11) is in sliding contact with the surface of the collar (221).

7. The equipment for resource utilization of wastewater from dichlorobenzidine salt production according to claim 6, characterized in that: The second rotating assembly (3) further includes a radial rod (322) and a cleaning rod (36). A plurality of the radial rods (322) are fixedly connected between the rotating shell (32) and the central pipe shell (31). The bottom of the sewage purification tank body (1) is in sliding contact with the radial rod (322). The cleaning rod (36) is in sliding contact with the surface of the filter disc (213).

8. The equipment for resource utilization of wastewater from dichlorobenzidine salt production according to claim 1, characterized in that: The microbial attachment part (42) includes a rubber column (421) and a rubber cluster (422). A plurality of the rubber clusters (422) are embedded on the surface of the rubber column (421). The rubber cluster (422) is in the shape of a snowflake. The rubber column (421) is embedded on the surface of the substrate (41).

9. The equipment for resource utilization of wastewater produced by dichlorobenzidine salt according to claim 1, characterized in that: It further includes an angle sensor and a control display (6). Angle sensors are fixedly connected to the surfaces of the central column (212) and the rotating pipe (34). The control display (6) is fixedly connected to the sewage purification tank body (1). The angle sensor is in communication connection with the control display (6).

10. A method for resource utilization of wastewater from dichlorobenzidine salt production, applied to a device for resource utilization of wastewater from dichlorobenzidine salt production as claimed in any one of claims 1 to 9, characterized in that: Comprising: S100, sewage is injected into the sewage purification tank (1) through the sewage inlet pipe (11), and the first driving member (211) is used to control the rotation of the central column (212). The rotating central column (212) drives the radial tube (43) and the base plate (41) to move along the axial guide rail (311) through the sliding connection between the curved guide rail (214) and the ball head protrusion (44). After the central column (212) rotates for several circles, a plurality of microorganism attachment assemblies (4) that are symmetrically distributed about the axis of the central column (212) and uniformly distributed along the curved guide rail (214) can continuously switch positions between the bottom and the top of the sewage purification tank (1) along the axial guide rail (311); S200, while adjusting the axial positions of a plurality of microorganism attachment assemblies (4) based on the method of step S100, the second driving member (33) is used to control the central tube shell (31), the first rotating assembly (2) and the microorganism attachment assembly (4) to rotate around the axis of the rotating tube (34), so that the positions of the plurality of microorganism attachment assemblies (4) can be adjusted with the rotating tube (34) as the axis, thereby achieving the purpose of uniformly distributing microorganisms in sewage of different heights or different pollutant concentrations, while improving the microbial activity and sewage purification efficiency.

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