A multi-stage treatment device for industrial wastewater

Abstract

The utility model discloses a kind of multistage processing device of industrial wastewater, including processing bin, filter area, stirring area, filter mechanism, stirring mechanism;Processing bin is equipped with water intake, water intake is divided into two areas in processing bin, water intake top is equipped as filter area, water intake bottom is equipped as stirring area, filter mechanism is located in filter area, stirring mechanism is located in stirring area;Processing bin filter area top is equipped with water inlet and medicine inlet, stirring area bottom is equipped with auger I, auger I bottom side is equipped with blow-off port, stirring area side bottom is equipped with drain outlet.The utility model is cleaned to garbage in filter plate and filter hole by scraper mechanism and the vibration of filter plate, realizes the efficient, automatic cleaning of filter hole, effectively prevents the blockage of filter plate, significantly improves wastewater treatment efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of industrial wastewater treatment technology, and specifically relates to a multi-stage treatment device for industrial wastewater. Background Technology

[0002] Industrial wastewater has a complex composition and variable properties, containing various industrial raw materials, intermediate products, and pollutants that are washed away with it. This complexity often makes it difficult for a single treatment technology to achieve the desired treatment effect, thus requiring a multi-stage treatment approach.

[0003] A search revealed prior art publication number CN 219709328 U, which describes a multi-stage sedimentation tank for industrial wastewater treatment. This invention relates to the field of multi-stage sedimentation tank technology, and includes a sedimentation tank body. The sedimentation tank body is internally divided by baffles into a primary sedimentation tank, a secondary sedimentation tank, a tertiary sedimentation tank, a quaternary sedimentation tank, and a clear water tank. A first partition is provided between the primary and secondary sedimentation tanks, with a filter device fixedly connected to its upper end. A second partition is provided between the secondary and tertiary sedimentation tanks, with water channels on both sides of its upper end. A fixing frame is fixedly connected to the middle of the upper end of the second partition, and a stirring motor is fixedly mounted on the upper end of the fixing frame via a motor base. The output end of the stirring motor extends into the tertiary sedimentation tank and is fixedly connected to stirring blades. A third partition is provided between the quaternary sedimentation tank and the clear water tank, with a grid fixedly connected to its upper end. A cover plate is bolted to the upper end of the clear water tank. However, the filter screen in this sedimentation tank lacks a cleaning mechanism, which can easily cause filter screen blockage and reduce filtration efficiency.

[0004] Further search revealed that prior art announcement number CN 220656748 U describes a multi-stage treatment machine for industrial wastewater, comprising a filter box, an inlet tank fixedly connected to the filter box, a filter screen fixedly connected inside the inlet tank, the filter screen being arranged in a sloping shape, a connection port provided at the connection between the inlet tank and the filter box, an inlet at the bottom of the inlet tank, multiple sets of filling chambers fixedly connected inside the filter box, each filling chamber being filled with an adsorption component, the filter box being divided into multiple treatment chambers by the inlet tank, the bottom of the filter box being a settling chamber, a suction pipe fixedly connected to the bottom of each filling chamber, a pump suction component connected to the top of the filter pipe, a drain pipe provided at the top of the filter box, and a one-way sealing component provided inside the suction pipe and the drain pipe; however, this device lacks a cleaning mechanism for the filter screen, which easily causes filter screen clogging and reduces filtration efficiency. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-stage treatment device for industrial wastewater. By using a scraper mechanism and the vibration of the filter plate to clean the waste in the filter plate and filter holes, the device effectively prevents the filter plate from clogging and significantly improves the wastewater treatment efficiency.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A multi-stage treatment device for industrial wastewater includes a treatment chamber, a filtration zone, a mixing zone, a filtration mechanism, and a mixing mechanism. The treatment chamber is equipped with a water inlet hopper, which divides the treatment chamber into two areas. The top of the water inlet hopper is designated as the filtration zone, and the bottom of the water inlet hopper is designated as the mixing zone. The filtration mechanism is located within the filtration zone, and the mixing mechanism is located within the mixing zone.

[0008] The top of the filtration zone of the treatment chamber is provided with a water inlet and a chemical inlet. The water inlet is located at the top of the filtration mechanism, and the chemical inlet is located on one side of the top of the filtration mechanism. A slag discharge port II is provided on one side of the filtration zone. A slag collection bin is provided on one side of the bottom of the slag discharge port II. The slag collection bin is fixedly connected to the outer wall of the treatment chamber. A slag discharge port I is provided at the bottom of the slag collection bin. A suction port is provided on one side of the mixing zone of the treatment chamber. An auger I is provided at the bottom of the mixing zone. A motor I is provided on one side of the auger I. The output end of the motor I is fixedly connected to the auger I. A protective shell is provided on the outside of the motor I. A sewage discharge port is provided on one side of the bottom of the auger I. A drain outlet is provided at the bottom of one side of the mixing zone.

[0009] The side wall of the treatment chamber is equipped with a sealing plate, which is fixedly connected to the treatment chamber by bolts and nuts. A sealing strip is provided at the contact end between the sealing plate and the side wall of the treatment chamber. The filtration mechanism and stirring mechanism inside the treatment chamber can be installed and maintained by disassembling the sealing plate.

[0010] The filtration mechanism includes a motor II, an auger II, a filter plate I, a filter plate II, a motor III, a support rod II, a fixed plate, a connecting rod I, an electric push rod, and a coupling. The filter plate II is installed in the filtration area of ​​the processing chamber and is fixedly connected to the inner wall of the filtration area. A scraper mechanism is provided on one side of the filter plate II. Sliding grooves are provided on one side of the inner wall of the filtration area and the inner side of the sealing plate. The filter plate I is slidably connected to the processing chamber and the sealing plate on both sides within the sliding grooves. A conveying channel is provided on one side of the filter plate I, with both ends fixedly connected to the inner wall of the filtration area. One end of the conveying channel corresponds to the slag discharge port II. Both ends of the filter plate I are respectively attached to one side of the filter plate II and one side of the conveying channel to ensure stability during sliding. A baffle is provided at the bottom of the filter plate I near the conveying channel, and the baffle is attached to one side of the conveying channel to prevent gaps from forming between the filter plate I and the conveying channel when the filter plate I slides. This causes waste to get stuck between filter plate I and the conveying channel, damaging the filtration mechanism. The auger II is rotatably installed in the conveying channel, and motor II is fixedly installed on the outside of the sealing plate. The output end of motor II is fixedly connected to auger II through a coupling. A protective shell is provided on the outside of motor II. A support rod I is provided at the bottom of filter plate I. The top of support rod II is designed to be spherical. The bottom of support rod I is movably connected to the top of support rod II. A connecting rod I is located at the bottom of support rod II. The bottom end of support rod I is fixedly connected to the middle of the top of connecting rod I. A fixing plate is located on one side of connecting rod I. The fixing plate is fixedly connected to the inner wall of the filtration area of ​​the treatment chamber and the top of the water hopper. One end of connecting rod I is rotatably connected to the fixing plate. An eccentric wheel is provided at the bottom of one end of connecting rod I. The side wall of the eccentric wheel fits against the bottom end of connecting rod I. Motor III is fixedly installed on one side of the fixing plate. The output end of motor III is fixedly connected to the eccentric wheel. A protective shell is provided on the outside of motor III.

[0011] The scraper mechanism includes a scraper and a spring I. One side of the scraper is in close contact with the inner wall of the filter plate II. Several slots are provided on one side of the scraper, and the positions of the slots correspond to the positions of the filter holes in the filter plate II. The spring I is fixedly installed at the bottom of the slots. A pin is provided at the top of the spring I. The pin is slidably connected to the slot. The protruding end of the pin is spherical, ensuring that after the pin is inserted into the filter hole, it slides out of the filter hole along the spherical top. Telescopic rods are provided at both ends of the top of the scraper. The telescopic rods are installed at the top of the filtration area of ​​the treatment chamber. The telescopic ends of the telescopic rods pass through the top of the filtration area of ​​the treatment chamber and are fixedly connected to the scraper. An electric push rod is provided between the two sets of telescopic rods. The telescopic ends of the electric push rod are fixedly connected to the scraper. A protective shell is provided on the outside of the electric push rod.

[0012] The stirring mechanism includes a motor IV, a rotating shaft I, a fixed rod II, and a stirring shaft. The fixed rod II is configured in two sets, one set is fixedly connected to the water inlet bucket, and the other set is fixedly connected to the bottom of the stirring zone of the treatment chamber. The stirring shaft is rotatably connected to the middle of the fixed rod II. A bevel gear is provided on the stirring shaft. The motor IV is fixedly installed on the outside of the sealing plate. The output shaft of the motor IV is fixedly connected to the rotating shaft I through a coupling. One end of the rotating shaft I passes through the side wall of the stirring zone of the treatment chamber. The bevel gear at one end of the rotating shaft I meshes with the bevel gear on the stirring shaft. A protective shell is provided on the outside of the meshing point between the bevel gear at one end of the rotating shaft I and the bevel gear on the stirring shaft. The stirring shaft is provided with a stirring plate II, which is cross-shaped.

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] 1) Motor III drives the eccentric wheel to rotate, causing connecting rod I to swing around its connection point with the fixed plate, which in turn drives support rod I and support rod II to vibrate up and down. This causes filter plate I to slide up and down along the sliding groove, thus achieving a vibration effect. The garbage and large suspended particles on filter plate I are vibrated into the conveying channel. During the vibration process, the garbage and particles stuck in the filter holes of filter plate I will also fall into the mixing zone under the action of vibration. Vibrating filter plate I effectively prevents the filter holes from clogging and significantly improves the wastewater treatment efficiency.

[0015] 2) The electric push rod drives the scraper to move from top to bottom, pushing the garbage and large suspended particles on filter plate II towards filter plate I. When the groove of the scraper is aligned with the filter hole, spring I relaxes, pushing the ejector pin into the filter hole, pushing the particles in the hole into the mixing zone for subsequent flocculation treatment; this achieves efficient and automated cleaning of the filter hole, reduces interference, and improves wastewater treatment efficiency. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the structure of a multi-stage treatment device for industrial wastewater according to this utility model;

[0017] Appendix Figure 2 It is attached Figure 1 Schematic diagram of CIMC slag box location;

[0018] Appendix Figure 3 It is attached Figure 1 Schematic diagram of the middle filtration mechanism;

[0019] Appendix Figure 4 It is attached Figure 3 Schematic diagram of the location of the middle filter plate I;

[0020] Appendix Figure 5 It is attached Figure 2 Schematic diagram of the center sealing plate structure;

[0021] Appendix Figure 6 It is attached Figure 3 Schematic diagram of the scraper mechanism;

[0022] Appendix Figure 7 It is attached Figure 1 Schematic diagram of the stirring mechanism;

[0023] Appendix Figure 8 This is a schematic diagram of the appearance of a multi-stage treatment device for industrial wastewater according to this utility model.

[0024] In the diagram: 1. Processing chamber; 101. Water inlet; 102. Sewage outlet; 103. Chemical inlet; 104. Motor I; 105. Slag collection chamber; 106. Slag outlet I; 107. Water hopper; 108. Screw conveyor I; 109. Slag outlet II; 110. Filtration zone; 111. Mixing zone; 112. Suction port; 113. Drainage outlet; 114. Sealing plate;

[0025] 2. Filtering mechanism; 21. Motor II; 22. Screw II; 23. Conveying channel; 24. Filter plate I; 25. Filter plate II; 26. Sliding groove; 27. Support rod I; 28. Motor III; 29. ​​Support rod II; 210. Fixing plate; 211. Eccentric wheel; 212. Connecting rod I; 213. Scraper mechanism; 2131. Telescopic rod; 2132. Scraper; 2133. Groove; 2134. Ejector pin; 2135. Spring I; 215. Electric push rod; 216. Coupling;

[0026] 3. Stirring mechanism; 31. Motor IV; 32. Rotating shaft I; 315. Stirring plate II; 319. Stirring shaft; 318. Fixing rod II. Detailed Implementation

[0027] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-8 The technical solution of this utility model will be further described in detail below.

[0028] A multi-stage treatment device for industrial wastewater includes a treatment chamber 1, a filtration zone 110, a stirring zone 111, a filtration mechanism 2, and a stirring mechanism 3. The treatment chamber 1 is equipped with a water inlet hopper 107, which divides the treatment chamber 1 into two areas. The top of the water inlet hopper 107 is the filtration zone 110, and the bottom of the water inlet hopper 107 is the stirring zone 111. The filtration mechanism 2 is located in the filtration zone 110, and the stirring mechanism 3 is located in the stirring zone 111.

[0029] The top of the filtration zone 110 of the treatment chamber 1 is provided with a water inlet 101 and a chemical inlet 103. The water inlet 101 is located at the top of the filtration mechanism 2, and the chemical inlet 103 is located on one side of the top of the filtration mechanism 2. A slag discharge port II 109 is provided on one side of the filtration zone 110. A slag collection bin 105 is provided on one side of the bottom of the slag discharge port II 109. The slag collection bin 105 is fixedly connected to the outer wall of the treatment chamber 1. A slag discharge port I 106 is provided at the bottom of the slag collection bin 105. A suction port 112 is provided on one side of the stirring zone 111 of the treatment chamber 1. An auger I 108 is provided at the bottom of the stirring zone 111. A motor I 104 is provided on one side of the auger I 108. The output end of the motor I 104 is fixedly connected to the auger I 108. A protective shell is provided on the outside of the motor I 104. A sewage discharge port 102 is provided on one side of the bottom of the auger I 108. A drain outlet 113 is provided at the bottom of one side of the stirring zone 111.

[0030] The side wall of the processing chamber 1 is provided with a sealing plate 114. The sealing plate 114 is fixedly connected to the processing chamber 1 by bolts and nuts. The end of the sealing plate 114 that contacts the side wall of the processing chamber 1 is provided with a sealing strip. The filter mechanism 2 and the stirring mechanism 3 inside the processing chamber 1 can be installed and maintained by disassembling the sealing plate 114.

[0031] As described above, wastewater enters the filtration zone 110 through inlet 101. The filtration mechanism 2 intercepts the garbage and large suspended particles in the wastewater. The garbage and large suspended particles enter the slag collection bin 105 through slag discharge port II 109 and are finally discharged from slag discharge port I 106. The filtered wastewater enters the mixing zone 111. The medicine enters the mixing zone 111 through the medicine inlet 103. The mixing mechanism 3 is activated to accelerate the mixing of wastewater and medicine, so that the small suspended particles in the wastewater can quickly flocculate and settle and separate from the wastewater. After separation, the supernatant is extracted through the suction port 112 on one side of the mixing zone 111. A small portion of the wastewater that cannot be separated from the sediment is discharged through the drain port 113. The settled suspended particles settle to the bottom of the mixing zone 111. The motor I 104 rotates the auger I 108 to discharge the settled suspended particles from the sewage outlet 102.

[0032] The filtration mechanism 2 includes a motor II 21, an auger II 22, a filter plate I 24, a filter plate II 25, a motor III 28, a support rod II 29, a fixing plate 210, a connecting rod I 212, an electric push rod 215, and a coupling 216. The filter plate II 25 is installed in the filtration zone 110 of the treatment chamber 1 and is fixedly connected to the inner wall of the filtration zone 110. A scraper mechanism 213 is provided on one side of the filter plate II 25. A sliding groove 26 is provided on one side of the inner wall of the filtration zone 110 of the treatment chamber 1 and on the inner side of the sealing plate 114. The filter plate I 24 is provided with sliding grooves 26 on both sides. The filter plate I 24 is slidably connected to the processing chamber 1 and the sealing plate 114. A conveying channel 23 is provided on one side of the filter plate I 24. Both ends of the conveying channel 23 are fixedly connected to the inner wall of the filtration area 110 of the processing chamber 1. One end of the conveying channel 23 corresponds to the slag discharge port II 109. Both ends of the filter plate I 24 are respectively attached to one side of the filter plate II 25 and one side of the conveying channel 23 to ensure the filter plate I 24 remains stable during sliding. A baffle is provided at the bottom of the end of the filter plate I 24 near the conveying channel 23, and the baffle is attached to one side of the conveying channel 23 to prevent friction between the filter plate I 24 and the conveying channel 23 during sliding. Gaps can form, causing debris to get stuck between the filter plate I 24 and the conveying channel 23, damaging the filter mechanism 2. The auger II 22 is rotatably installed in the conveying channel 23. The motor II 21 is fixedly installed on the outside of the sealing plate 114. The output end of the motor II 21 is fixedly connected to the auger II 22 via a coupling 216. A protective shell is provided on the outside of the motor II 21. The bottom of the filter plate I 24 is provided with a support rod I 27. The top of the support rod II 29 is designed to be spherical. The bottom of the support rod I 27 is movably connected to the top of the support rod II 29. The connecting rod I 212 is located at the bottom of the support rod II 29. The bottom end of I27 is fixedly connected to the middle of the top end of the connecting rod I212. The fixing plate 210 is located on one side of the connecting rod I212. The fixing plate 210 is fixedly connected to the inner wall of the filter area 110 of the treatment chamber 1 and the top end of the water inlet 107. One end of the connecting rod I212 is rotatably connected to the fixing plate 210. An eccentric wheel 211 is provided at the bottom of one end of the connecting rod I212. The side wall of the eccentric wheel 211 is in contact with the bottom end of the connecting rod I212. The motor III28 is fixedly installed on one side of the fixing plate 210. The output end of the motor III28 is fixedly connected to the eccentric wheel 211. A protective shell is provided on the outside of the motor III28.

[0033] As described above, after the wastewater enters the filtration zone 110, it first flows into the mixing zone 111 through the filter holes on filter plates I 24 and II 25, while garbage and large suspended particles adhere to filter plates I 24 and II 25. Subsequently, the scraper mechanism 213 is activated to scrape the garbage attached to filter plate II 25 onto filter plate I 24. Then, motor III 28 drives the eccentric wheel 211 to rotate, causing the connecting rod I 212 to swing around its connection point with the fixed plate 210, thereby causing the support rods I 27 and II 29 to vibrate up and down. The filter plate I24 slides up and down along the sliding groove 26, thereby achieving a vibration effect. The garbage and large suspended particles on the filter plate I24 are vibrated into the conveying channel 23. The motor II21 drives the auger II22 to rotate, and the garbage and large suspended particles in the conveying channel 23 are conveyed into the slag collection bin 105 through the slag discharge port II109. During the vibration of the filter plate I24, some garbage and particles that were originally stuck in the filter holes of the filter plate I24 will also fall into the mixing zone 111 under the action of vibration, and mix with the wastewater for subsequent flocculation and sedimentation treatment.

[0034] The scraper mechanism 213 includes a scraper 2132 and a spring I 2135. One side of the scraper 2132 is tightly attached to the inner wall of the filter plate II 25. A plurality of slots 2133 are provided on one side of the scraper 2132, the positions of which correspond to the positions of the filter holes in the filter plate II 25. The spring I 2135 is fixedly installed at the bottom of the slots 2133, and a pin 2134 is provided at the top of the spring I 2135. The pin 2134 is slidably connected to the slot 2133, and the protruding end of the pin 2134 is spherical. After the ejector pin 2134 is inserted into the filter hole, it slides out of the filter hole along the spherical head. The scraper 2132 is provided with telescopic rods 2131 at both ends of the top. The telescopic rods 2131 are installed on the top of the filter area 110 of the processing chamber 1. The telescopic ends of the telescopic rods 2131 pass through the top of the filter area 110 of the processing chamber 1 and are fixedly connected to the scraper 2132. An electric push rod 215 is provided between the two sets of telescopic rods 2131. The telescopic ends of the electric push rod 215 are fixedly connected to the scraper 2132. A protective shell is provided on the outside of the electric push rod 215.

[0035] As described above, the electric push rod 215 drives the scraper 2132 to move, pushing large suspended particles on the filter plate II 25 toward the filter plate I 24. When the slot 2133 of the scraper 2132 is not aligned with the filter hole of the filter plate II 25, the spring I 2135 is in a compressed state, and the spherical head of the ejector pin 2134 remains parallel to the scraper 2132. As the scraper 2132 continues to move, the slot 2133 aligns with the filter hole, the spring I 2135 relaxes, and pushes the ejector pin 2134 into the filter hole, pushing the particles in the hole into the stirring zone 111 for subsequent flocculation treatment.

[0036] The stirring mechanism 3 includes a motor IV 31, a rotating shaft I 32, a fixed rod II 318, and a stirring shaft 319. The fixed rod II 318 is configured in two sets, one set is fixedly connected to the water hopper 107, and the other set is fixedly connected to the bottom of the stirring zone 111 of the treatment chamber 1. The stirring shaft 319 is rotatably connected to the middle of the fixed rod II 318. A bevel gear is provided on the stirring shaft 319. The motor IV 31 is fixedly installed on the outside of the sealing plate 114. The output shaft of the motor IV 31 is fixedly connected to the rotating shaft I 32 through a coupling 216. One end of the rotating shaft I 32 passes through the side wall of the stirring zone 111 of the treatment chamber 1. The bevel gear at one end of the rotating shaft I 32 meshes with the bevel gear on the stirring shaft 319. A protective shell is provided on the outside of the meshing point between the bevel gear at one end of the rotating shaft I 32 and the bevel gear on the stirring shaft 319. The stirring shaft 319 is provided with a stirring plate II 315, which is cross-shaped.

[0037] As described above, after the drug enters the stirring zone 111, the motor IV 31 rotates the stirring shaft 319, and the stirring plate II 315 rotates to mix and stir the wastewater and the drug, thereby accelerating the formation of sediment.

[0038] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this invention, the connection methods are divided into fixed connection and movable connection. Fixed connection methods include, but are not limited to, welding and bolting. Movable connection methods include, but are not limited to, sliding connection, rotating connection, and threaded connection. The connection method to achieve the desired effect should be selected according to the application of the solution. Washers are provided in the connection process of the bolts, fixing bolts, studs and nuts. At the same time, the connection of the bolts, fixing bolts, studs and nuts is fixed by thread locking.

[0040] In summary, the power systems, including but not limited to motors, electric actuators, and their respective transmission systems, are equipped with protective covers according to their actual installation locations to prevent wear or damage to the power and transmission systems caused by the external environment, thereby ensuring the normal operation of the power and transmission systems.

[0041] In summary, the electronic or electrical components, including but not limited to electric actuators and motors, are existing components that are custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this invention.

[0042] The above description is merely an example and illustration of the structure created by this invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, they should all fall within the protection scope of this invention.

Claims

1. A multi-stage treatment device for industrial wastewater, comprising a treatment chamber, a filtration zone, a mixing zone, a filtration mechanism, and a mixing mechanism; the treatment chamber is provided with a water inlet hopper, which divides the treatment chamber into two areas, the top of the water inlet hopper is designated as the filtration zone, the bottom of the water inlet hopper is designated as the mixing zone, the filtration mechanism is located in the filtration zone, and the mixing mechanism is located in the mixing zone. Its features The top of the filtration zone of the treatment chamber is provided with a water inlet and a chemical inlet. The water inlet is located at the top of the filtration mechanism, and the chemical inlet is located on one side of the top of the filtration mechanism. A slag discharge port II is provided on one side of the filtration zone. A slag collection bin is provided on one side of the bottom of the slag discharge port II. The slag collection bin is fixedly connected to the outer wall of the treatment chamber. A slag discharge port I is provided at the bottom of the slag collection bin. A suction port is provided on one side of the mixing zone of the treatment chamber. An auger I is provided at the bottom of the mixing zone. A motor I is provided on one side of the auger I. The output end of the motor I is fixedly connected to the auger I. A protective shell is provided on the outside of the motor I. A sewage discharge port is provided on one side of the bottom of the auger I. A drain outlet is provided at the bottom of one side of the mixing zone. The filtration mechanism includes a motor II, an auger II, a filter plate I, a filter plate II, a motor III, a support rod II, a fixed plate, a connecting rod I, an electric push rod, and a coupling. The filter plate II is installed in the filtration area of ​​the treatment chamber and is fixedly connected to the inner wall of the filtration area. A scraper mechanism is provided on one side of the filter plate II. Sliding grooves are provided on one side of the inner wall of the filtration area and the inner side of the sealing plate. The filter plate I is slidably connected to the treatment chamber and the sealing plate on both sides within the sliding grooves. A conveying channel is provided on one side of the filter plate I, with both ends fixedly connected to the inner wall of the filtration area. One end of the conveying channel corresponds to the slag discharge port II. Both ends of the filter plate I are respectively attached to one side of the filter plate II and one side of the conveying channel. A baffle is provided at the bottom of the filter plate I near the conveying channel, and the baffle is attached to one side of the conveying channel. The auger II rotates... The filter plate I is installed in the conveying channel. Motor II is fixedly installed on the outside of the sealing plate. The output end of motor II is fixedly connected to auger II through a coupling. A protective shell is provided on the outside of motor II. A support rod I is provided at the bottom of filter plate I. The top of support rod II is designed to be spherical. The bottom of support rod I is movably connected to the top of support rod II. Connecting rod I is located at the bottom of support rod II. The bottom end of support rod I is fixedly connected to the middle of the top of connecting rod I. A fixing plate is located on one side of connecting rod I. The fixing plate is fixedly connected to the inner wall of the filtration area of ​​the treatment chamber and the top of the water hopper. One end of connecting rod I is rotatably connected to the fixing plate. An eccentric wheel is provided at the bottom of one end of connecting rod I. The side wall of the eccentric wheel fits against the bottom end of connecting rod I. Motor III is fixedly installed on one side of the fixing plate. The output end of motor III is fixedly connected to the eccentric wheel. A protective shell is provided on the outside of motor III.

2. The multi-stage treatment device for industrial wastewater according to claim 1, characterized in that... The side wall of the processing chamber is provided with a sealing plate, which is fixedly connected to the processing chamber by bolts and nuts. A sealing strip is provided at the contact end between the sealing plate and the side wall of the processing chamber.

3. The multi-stage treatment device for industrial wastewater according to claim 1, characterized in that... The scraper mechanism includes a scraper and a spring I. One side of the scraper is in close contact with the inner wall of the filter plate II. Several slots are provided on one side of the scraper, and the positions of the slots correspond to the positions of the filter holes in the filter plate II. The spring I is fixedly installed at the bottom of the slots. A pin is provided at the top of the spring I. The pin is slidably connected to the slot. The protruding end of the pin is spherical, ensuring that after the pin is inserted into the filter hole, it slides out of the filter hole along the spherical top. Telescopic rods are provided at both ends of the top of the scraper. The telescopic rods are installed at the top of the filter area of ​​the treatment chamber. The telescopic ends of the telescopic rods pass through the top of the filter area of ​​the treatment chamber and are fixedly connected to the scraper. An electric push rod is provided between the two sets of telescopic rods. The telescopic ends of the electric push rod are fixedly connected to the scraper. A protective shell is provided on the outside of the electric push rod.

4. The multi-stage treatment device for industrial wastewater according to claim 1, characterized in that... The stirring mechanism includes a motor IV, a rotating shaft I, a fixed rod II, and a stirring shaft. The fixed rod II is configured in two sets, one set is fixedly connected to the water inlet bucket, and the other set is fixedly connected to the bottom of the stirring zone of the treatment chamber. The stirring shaft is rotatably connected to the middle of the fixed rod II. A bevel gear is provided on the stirring shaft. The motor IV is fixedly installed on the outside of the sealing plate. The output shaft of the motor IV is fixedly connected to the rotating shaft I through a coupling. One end of the rotating shaft I passes through the side wall of the stirring zone of the treatment chamber. The bevel gear at one end of the rotating shaft I meshes with the bevel gear on the stirring shaft. A protective shell is provided on the outside of the meshing point between the bevel gear at one end of the rotating shaft I and the bevel gear on the stirring shaft. The stirring shaft is provided with a stirring plate II, which is cross-shaped.

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