Circulating type advanced treatment device for chemical wastewater

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a circulating deep treatment device for chemical wastewater, which comprises a treatment tank, a screen filter mechanism, an extrusion mechanism, a pushing mechanism and a transmission mechanism. The three connecting boxes are driven by the connecting sleeves to rotate in the treatment tank, so that the working effect of stirring wastewater in the treatment tank is achieved, sufficient reaction between the wastewater and a treatment agent is guaranteed, the treatment effect is guaranteed, the filter bags are driven by the rotating connecting boxes to clean flocculated impurities generated in the wastewater, and the treatment effect is improved. The two extrusion rollers are used for intermittently extruding the filter bag to form a filter pressing effect, so that the effect that the filter bag can clean flocculate is ensured, the flocculate is prevented from overflowing, finally, wastewater is filtered again through the filter plate at the bottom and then is discharged, and a small amount of impurities gathered on the surface of the filter plate are cleaned and scraped through rotation of the shifting piece and the filter plate, so that the filter effect is improved. The filter plate is prevented from being blocked, and normal discharge of wastewater is ensured.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a circulating deep treatment device for chemical wastewater. Background Technology

[0002] Water resources are needed to assist in some industrial production processes, especially in chemical production. This results in a large amount of industrial wastewater. If this wastewater is discharged directly without proper treatment, it will cause serious pollution to the environment and natural ecosystem. Therefore, appropriate treatment equipment is needed to treat industrial wastewater.

[0003] Existing technology, patent document CN202510542124.0, discloses a deep treatment device for chemical wastewater, relating to the field of water pollution control technology. This deep treatment device includes a main body of the treatment equipment. A blower aerator is mounted on the top of the main body, and a servo motor is mounted on the side of the main body. A power rod is driven to the side of the servo motor, and a bevel gear is fixedly connected to the side of the power rod. A stirring rod is rotatably connected inside the main body of the treatment equipment. When the device is connected to an external power source, the blower aerator and servo motor operate. In conjunction with a fixed base, a first sprocket, a chain, a reciprocating screw, a second sprocket, a sliding block, a pressing plate, a torsion spring rod, a first force plate, and a guide plate, the air blown in by the blower aerator can be directed to various positions on the surface of the wastewater, increasing the contact area between the air and the wastewater, thereby improving the treatment efficiency of the equipment.

[0004] The aforementioned existing patents still have the following problems: Existing technologies treat wastewater chemically through aeration. In this process, a blower mechanism is used to ensure the contact effect between wastewater and airflow during aeration, thereby ensuring the treatment effect of wastewater. However, in the process of treating chemical wastewater, it is often necessary to add corresponding treatment agents. These agents will react chemically or physically with substances in the wastewater to produce a large amount of flocculent sediment. If these impurities are not cleaned in time, the accumulation of flocculent sediment during multi-stage treatment will cause pipe blockage. In some cases, the excessive amount of flocculent sediment floating in the wastewater may prevent newly added agents from reacting fully with the wastewater, thus affecting both the efficiency and effectiveness of wastewater treatment. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the background art by proposing a circulating deep treatment device for chemical wastewater.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a circulating deep treatment device for chemical wastewater, comprising a treatment tank, a support column fixedly connected inside the treatment tank, a connecting sleeve rotatably connected inside the treatment tank, the connecting sleeve being rotatably sleeved with the support column, a motor fixedly connected to the top of the connecting sleeve via a coupling, the motor being fixedly connected to the top of the treatment tank, and further comprising: The three mesh filter mechanisms are evenly and fixedly connected to the surface of the connecting sleeve, and the three mesh filter mechanisms are staggered vertically. The mesh filter mechanism is used to clean the flocculated impurities generated during the wastewater treatment process. An extrusion mechanism is slidably connected inside the mesh filter mechanism and is used to perform pressure filtration on the mesh filter mechanism. A pushing mechanism is provided inside the screen filter mechanism and is used to drive the extrusion mechanism to slide. The transmission mechanism is located inside the connecting sleeve and is used to drive the extrusion mechanism to slide along the mesh filter mechanism and to drive the extrusion mechanism to slide back to its original position.

[0007] In the above-mentioned circulating deep treatment device for chemical wastewater, the filter mechanism includes a connecting box and a filter bag. Three connecting boxes are uniformly and fixedly connected to the inside of the connecting sleeve in a circular manner, and the three connecting boxes are staggered vertically. The connecting boxes are rotatably connected to the inside of the treatment tank through the connecting sleeve. The two ends of the connecting boxes are provided with through openings. The filter bag is embedded in the inside of the connecting box. Several leakage holes are opened at the bottom of the connecting box.

[0008] In the aforementioned circulating deep treatment device for chemical wastewater, the mechanism includes two squeezing rollers, two connecting wheels, two guide wheels, and two connecting belts. The two squeezing rollers are symmetrically arranged on both sides of the filter bag, and the squeezing rollers are located on both sides inside the connecting box. The two connecting wheels are symmetrically rotatably connected to one side inside the connecting box, and the two guide wheels are symmetrically rotatably connected to the other side inside the connecting box. The connecting belts are rotatably connected to the inside of the connecting box through one connecting wheel and one guide wheel on the same side. The two squeezing rollers are slidably connected to both sides inside the connecting box through the two connecting belts.

[0009] In the aforementioned circulating deep treatment device for chemical wastewater, the pushing mechanism includes a connecting arm, a connecting pin, and a rack. The connecting arm is fixedly connected to the top of one of the extrusion rollers. One end of the connecting arm penetrates through the outside of the connecting box. Three top bars are evenly arranged on the inner wall of the treatment tank. The three top bars are slidably connected to the ends of the three connecting arms that penetrate through the outside of the connecting box. The other end of the connecting arm is fixedly connected to the connecting pin. The connecting pin can be inserted into both sides of two connecting strips. A connecting strip is fixedly connected to the end of the connecting pin away from the connecting arm. The rack is fixedly connected to the top of another extrusion roller. Guide teeth mesh between the connecting strip and the rack. The connecting arm, connecting pin, and rack are all slidably connected inside the connecting box.

[0010] In the aforementioned circulating deep treatment device for chemical wastewater, the transmission mechanism includes transmission teeth, reset teeth, and bevel teeth. The transmission teeth and reset teeth are symmetrically fixedly connected to the surface of the support column, and are arranged vertically aligned. The bevel teeth can alternately mesh with the transmission teeth and reset teeth. A rotating wheel is fixedly connected to the side of the bevel teeth away from the support column. A transmission wheel is connected to one side of the rotating wheel via a belt drive. A rotating shaft is fixedly connected to the side of the transmission wheel away from the bevel teeth. The rotating shaft passes through the connecting sleeve, and one end of the rotating shaft that passes through the outside of the connecting sleeve is rotatably connected to the inside of the connecting box.

[0011] In the above-mentioned circulating deep treatment device for chemical wastewater, a rotating tooth is fixedly connected to one end of the rotating shaft inside the connecting box. The bottom of the rotating tooth meshes with an intermediate tooth, and gears are symmetrically meshed on both sides of the surface of the intermediate tooth. The bottoms of the two gears are respectively fixedly connected to the tops of the two connecting wheels.

[0012] In the above-mentioned circulating deep treatment device for chemical wastewater, a fixed shaft is rotatably connected inside the guide tooth. One end of the fixed shaft passes through one end of the guide tooth, and the end of the fixed shaft that passes through to the outside of the guide tooth is fixedly connected to the inside of the connecting box. A return spring is fixedly connected to the surface of the fixed shaft inside the guide tooth, and the other end of the return spring is fixedly connected to the inside of the guide tooth.

[0013] In the above-mentioned circulating deep treatment device for chemical wastewater, a filter plate is provided at the bottom of the treatment tank, the bottom of the support column is fixedly connected to the top of the filter plate, and a number of levers are evenly provided at the bottom of the connecting sleeve, with the levers slidingly connected to the filter plate.

[0014] Compared with existing technologies, the advantages of this circulating deep treatment device for chemical wastewater are: The connecting sleeve drives the three connecting boxes to rotate in the treatment tank, thereby creating a stirring effect on the wastewater in the treatment tank, ensuring that the wastewater and the treatment agent can react fully and guarantee the treatment effect. The rotating connecting box drives the filter bag to clean the flocculated impurities generated in the wastewater. Two squeezing rollers intermittently squeeze the filter bag to create a pressure filtration effect, ensuring that the filter bag can effectively clean the flocculated material and preventing the flocculated material from overflowing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the filter plate structure of the present invention; Figure 3 This is a cross-sectional view of the processing tank of the present invention; Figure 4 This is a schematic diagram of the leakage hole structure of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the leakage hole of the present invention; Figure 6 This is a cross-sectional view of the connecting box structure of the present invention; Figure 7 This is a schematic cross-sectional view of the rotating wheel structure of the present invention; Figure 8 This is the invention Figure 7 A magnified view of the structure at point A in the middle; Figure 9 This is a schematic diagram of the cross-sectional structure of the guide tooth of the present invention; Figure 10 This is a schematic cross-sectional view of the connecting sleeve of the present invention; Figure 11 This is a schematic cross-sectional view of the support structure of the present invention.

[0016] In the picture: 1. Processing tank; 2. Support column; 3. Connecting sleeve; 4. Motor; 5. Filtering mechanism; 501. Connecting box; 502. Filter bag; 6. Extrusion mechanism; 601. Extrusion roller; 602. Connecting wheel; 603. Guide wheel; 604. Connecting belt; 7. Pushing mechanism; 701. Connecting arm; 702. Connecting pin; 703. Rack; 8. Transmission mechanism; 801. Transmission gear; 802. Reset gear; 803. Bevel gear; 9. Leakage hole; 10. Top bar; 11. Connecting bar; 12. Guide gear; 13. Rotating wheel; 14. Transmission wheel; 15. Rotating shaft; 16. Rotating gear; 17. Intermediate gear; 18. Gear; 19. Fixed shaft; 20. Reset spring; 21. Filter plate; 22. Paddle. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0019] Reference Figures 1-11 A circulating deep treatment device for chemical wastewater includes a treatment tank 1, a support column 2 fixedly connected inside the treatment tank 1, a connecting sleeve 3 rotatably connected inside the treatment tank 1, the connecting sleeve 3 being rotatably sleeved with the support column 2, and a motor 4 fixedly connected to the top of the connecting sleeve 3 via a coupling, the motor 4 being fixedly connected to the top of the treatment tank 1, and further includes: Three mesh filter mechanisms 5 are evenly and fixedly connected to the surface of the connecting sleeve 3, and the three mesh filter mechanisms 5 are staggered vertically. The mesh filter mechanism 5 is used to clean the flocculated impurities generated during the wastewater treatment process. The mesh filter mechanism 5 includes a connecting box 501 and a filter bag 502. The three connecting boxes 501 are evenly and fixedly connected to the inside of the connecting sleeve 3 in a circumferential manner, and the three connecting boxes 501 are staggered vertically. The connecting boxes 501 are rotatably connected to the inside of the treatment tank 1 through the connecting sleeve 3. The two ends of the connecting box 501 are set with through openings. The filter bag 502 is embedded in the inside of the connecting box 501. Several leakage holes 9 are opened at the bottom of the connecting box 501. A filter plate 21 is set at the bottom of the treatment tank 1. The bottom of the support column 2 is fixedly connected to the top of the filter plate 21. Several levers 22 are evenly set at the bottom of the connecting sleeve 3. The levers 22 are slidably connected to the filter plate 21. The motor 4 drives the connecting sleeve 3 to rotate around the support column 2, which in turn drives the three connecting boxes 501 and the filter bag 502 to rotate in the treatment tank 1. This agitates the wastewater that reacts with the treatment agent and collects the generated flocculent matter through the filter bag 502. As the rotation continues, the filter bag 502 continuously collects and filters the flocculent matter in the wastewater. Finally, the wastewater is filtered again through the filter plate 21 at the bottom before being discharged. Furthermore, the rotation of the lever 22 and the filter plate 21 cleans the small amount of impurities accumulated on the surface of the filter plate 21, preventing the filter plate 21 from clogging and ensuring the normal discharge of wastewater.

[0020] The extrusion mechanism 6 is slidably connected inside the filter filter mechanism 5. The extrusion mechanism 6 is used to press and filter the filter filter mechanism 5. The mechanism includes two extrusion rollers 601, two connecting wheels 602, two guide wheels 603, and two connecting belts 604. The two extrusion rollers 601 are symmetrically arranged on both sides of the filter bag 502, and the extrusion rollers 601 are located on both sides inside the connecting box 501. The two connecting wheels 602 are symmetrically rotatably connected to one side inside the connecting box 501, and the two guide wheels 603 are symmetrically rotatably connected to the other side inside the connecting box 501. The connecting belts 604 are rotatably connected to the inside of the connecting box 501 through one connecting wheel 602 and one guide wheel 603 on the same side. The two extrusion rollers 601 are slidably connected to both sides inside the connecting box 501 through the two connecting belts 604. The pushing mechanism 7 is located inside the filter filter mechanism 5 and is used to drive... The extrusion mechanism 6 slides, and the pushing mechanism 7 includes a connecting arm 701, a connecting pin 702, and a rack 703. The connecting arm 701 is fixedly connected to the top of one of the extrusion rollers 601. One end of the connecting arm 701 is inserted through the outside of the connecting box 501. Three top bars 10 are evenly arranged on the inner wall of the processing tank 1. The three top bars 10 are slidably connected to the ends of the three connecting arms 701 that extend to the outside of the connecting box 501. The other end of the connecting arm 701 is fixedly connected to the connecting pin 702. The connecting pin 702 can be inserted into both sides of the two connecting strips 604 respectively. A connecting strip 11 is fixedly connected to the end of the connecting pin 702 away from the connecting arm 701. The rack 703 is fixedly connected to the top of another extrusion roller 601. A guide tooth 12 meshes between the connecting strip 11 and the rack 703. The connecting arm 701, the connecting pin 702, and the rack 703 are all slidably connected inside the connecting box 501.

[0021] As the connecting box 501 rotates toward the top bar 10, the top bar 10 pushes the end of the connecting arm 701 that extends to the outside of the connecting box 501, forcing the connecting arm 701 and the connecting pin 702 to slide toward the other side inside the connecting box 501. At this time, the connecting pin 702 will separate from one side of the two connecting belts 604 and insert into the other side of the two connecting belts 604. As the connecting pin 702 slides, it will drive the guide tooth 12 to rotate through the connecting bar 11. The guide tooth 12 can drive the rack 703 to slide in the opposite direction, thereby driving the two extrusion rollers 601 to move closer to each other and extrude pressure on the filter bag 502.

[0022] The transmission mechanism 8 is located inside the connecting sleeve 3. The transmission mechanism 8 drives the extrusion mechanism 6 to slide along the filter mechanism 5 and to slide back to its original position. The transmission mechanism 8 includes a transmission tooth 801, a return tooth 802, and a bevel tooth 803. The transmission tooth 801 and return tooth 802 are symmetrically fixedly connected to the surface of the support column 2, and are vertically aligned. The bevel tooth 803 can alternately mesh with the transmission tooth 801 and return tooth 802. A rotating part is fixedly connected to the side of the bevel tooth 803 away from the support column 2. Wheel 13, a drive wheel 14 is connected to one side of the drive wheel 13 via a belt drive, a shaft 15 is fixedly connected to the side of the drive wheel 14 away from the bevel tooth 803, the shaft 15 is through the connecting sleeve 3, one end of the shaft 15 that extends to the outside of the connecting sleeve 3 is rotatably connected to the inside of the connecting box 501, a tooth 16 is fixedly connected to one end of the shaft 15 inside the connecting box 501, an intermediate tooth 17 is meshed at the bottom of the tooth 16, gears 18 are symmetrically meshed on both sides of the surface of the intermediate tooth 17, and the bottoms of the two gears 18 are fixedly connected to the tops of the two connecting wheels 602 respectively.

[0023] In this process, the rotation of the connecting sleeve 3 causes the bottom of the bevel gear 803 to mesh with the top of the transmission gear 801. The rotation of the bevel gear 803 then drives the transmission wheel 14 to rotate synchronously via the rotating wheel 13. This, in turn, drives the rotating gear 16 to rotate via the rotating shaft 15. Through the meshing transmission effect between the rotating gear 16 and the intermediate gear 17, the intermediate gear 17 drives the two gears 18 on both sides to rotate, thereby driving the two connecting wheels 602 to rotate. Finally, through the insertion effect of the connecting belt 604 and the connecting pin 702, the two extrusion rollers 601 are driven from... The connecting box 501 slides from one side to the other to fully compress the filter bag 502, squeezing out the wastewater and forcing the flocculent material to remain inside the filter bag 502, thus creating a pressure filtration effect. As the connecting sleeve 3 continues to rotate, the conical tooth 803 will separate from the transmission tooth 801, and the top of the conical tooth 803 will gradually mesh with the bottom of the reset tooth 802. At this time, the reverse rotation of the conical tooth 803 can drive the intermediate tooth 17 to rotate in the opposite direction through the rotating shaft 15, which can drive the two squeezing rollers 601 to slide back to their original positions.

[0024] A fixed shaft 19 is rotatably connected inside the guide tooth 12. One end of the fixed shaft 19 passes through one end of the guide tooth 12. The end of the fixed shaft 19 that passes through to the outside of the guide tooth 12 is fixedly connected to the inside of the connecting box 501. A return spring 20 is fixedly connected to the surface of the fixed shaft 19 inside the guide tooth 12. The other end of the return spring 20 is fixedly connected to the inside of the guide tooth 12.

[0025] As the connecting box 501 continues to rotate, the connecting arm 701 will separate from the top bar 10. At this time, the return spring 20 inside the guide tooth 12 will elastically return, thereby driving the rack 703 and the top bar 10 to return to their original positions, thereby forcing the two squeezing rollers 601 to separate from each other, ensuring that the opening of the filter bag 502 is open, and ensuring normal water inlet filtration effect.

[0026] The working principle and usage of this invention are explained in detail below: In use, firstly, the motor 4 drives the connecting sleeve 3 to rotate around the support column 2, which in turn drives the three connecting boxes 501 and the filter bag 502 to rotate in the treatment tank 1, stirring the wastewater that reacts with the treatment agent, and collecting the generated flocculent matter through the filter bag 502. As it rotates continuously, the filter bag 502 continuously collects and filters the flocculent matter in the wastewater. Finally, the wastewater is filtered again through the filter plate 21 at the bottom and then discharged. Furthermore, the rotation of the paddle 22 and the filter plate 21 cleans the small amount of impurities accumulated on the surface of the filter plate 21, preventing the filter plate 21 from clogging and ensuring the normal discharge of wastewater. In the second step, as the connecting box 501 rotates towards the top bar 10, the top bar 10 pushes the end of the connecting arm 701 that extends to the outside of the connecting box 501, forcing the connecting arm 701 and the connecting pin 702 to slide towards the other side inside the connecting box 501. At this time, the connecting pin 702 will separate from one side of the two connecting belts 604 and insert into the other side of the two connecting belts 604. As the connecting pin 702 slides, it will drive the guide tooth 12 to rotate through the connecting bar 11. The guide tooth 12 can drive the rack 703 to slide in the opposite direction, which will drive the two extrusion rollers 601 to move closer to each other and extrude pressure on the filter bag 502. Thirdly, the rotation of the connecting sleeve 3 causes the bottom of the bevel gear 803 to mesh with the top of the transmission gear 801. At this time, the rotation of the bevel gear 803 drives the transmission wheel 14 to rotate synchronously via the rotating wheel 13, which in turn drives the rotating gear 16 to rotate via the rotating shaft 15. Through the meshing transmission effect of the rotating gear 16 and the intermediate gear 17, the intermediate gear 17 drives the two gears 18 on both sides to rotate, thereby driving the two connecting wheels 602 to rotate. Finally, through the insertion effect of the connecting belt 604 and the connecting pin 702, the two extrusion rollers 601 are driven. The filter bag 502 is fully squeezed by sliding from one side to the other inside the connecting box 501. This squeezes out the wastewater from the filter bag 502 and forces the flocculent material to remain inside the filter bag 502, creating a pressure filtration effect. As the connecting sleeve 3 continues to rotate, the conical tooth 803 will separate from the transmission tooth 801, and the top of the conical tooth 803 will gradually mesh with the bottom of the reset tooth 802. At this time, the reverse rotation of the conical tooth 803 can drive the intermediate tooth 17 to rotate in the opposite direction through the rotating shaft 15, which can drive the two squeezing rollers 601 to slide back to their original positions.

[0027] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A circulating deep treatment device for chemical wastewater, comprising a treatment tank, characterized in that: The processing tank is internally fixedly connected to a support column, and internally rotatably connected to a connecting sleeve. The connecting sleeve is rotatably sleeved with the support column. A motor is fixedly connected to the top of the connecting sleeve via a coupling. The motor is fixedly connected to the top of the processing tank. The tank also includes: The three mesh filter mechanisms are evenly and fixedly connected to the surface of the connecting sleeve, and the three mesh filter mechanisms are staggered vertically. The mesh filter mechanism is used to clean the flocculated impurities generated during the wastewater treatment process. An extrusion mechanism is slidably connected inside the mesh filter mechanism and is used to perform pressure filtration on the mesh filter mechanism. A pushing mechanism is provided inside the screen filter mechanism and is used to drive the extrusion mechanism to slide. The transmission mechanism is located inside the connecting sleeve and is used to drive the extrusion mechanism to slide along the mesh filter mechanism and to drive the extrusion mechanism to slide back to its original position.

2. The circulating deep treatment device for chemical wastewater according to claim 1, characterized in that: The filter mechanism includes connecting boxes and filter bags. Three connecting boxes are evenly and circumferentially fixed inside the connecting sleeve, and the three connecting boxes are staggered vertically. The connecting boxes are rotatably connected to the inside of the treatment tank through the connecting sleeve. The two ends of the connecting boxes are set with through openings. The filter bags are embedded inside the connecting boxes. Several leakage holes are opened at the bottom of the connecting boxes.

3. The circulating deep treatment device for chemical wastewater according to claim 1, characterized in that: The mechanism includes two squeezing rollers, two connecting wheels, two guide wheels, and two connecting belts. The two squeezing rollers are symmetrically arranged on both sides of the filter bag and are located inside the connecting box on both sides. The two connecting wheels are symmetrically rotatably connected to one side of the connecting box, and the two guide wheels are symmetrically rotatably connected to the other side of the connecting box. The connecting belts are rotatably connected to the inside of the connecting box through one connecting wheel and one guide wheel on the same side. The two squeezing rollers are slidably connected to both sides of the inside of the connecting box through the two connecting belts.

4. A circulating deep treatment device for chemical wastewater according to claim 1, characterized in that: The pushing mechanism includes a connecting arm, a connecting pin, and a rack. The connecting arm is fixedly connected to the top of one of the extrusion rollers. One end of the connecting arm penetrates through the outside of the connecting box. Three top bars are evenly arranged on the inner wall of the processing tank. The three top bars are slidably connected to the ends of the three connecting arms that penetrate through the outside of the connecting box. The other end of the connecting arm is fixedly connected to the connecting pin. The connecting pin can be inserted into both sides of two connecting belts. A connecting strip is fixedly connected to the end of the connecting pin away from the connecting arm. The rack is fixedly connected to the top of another extrusion roller. Guide teeth mesh between the connecting strip and the rack. The connecting arm, connecting pin, and rack are all slidably connected inside the connecting box.

5. A circulating deep treatment device for chemical wastewater according to claim 1, characterized in that: The transmission mechanism includes transmission teeth, reset teeth, and bevel teeth. The transmission teeth and reset teeth are symmetrically fixedly connected to the surface of the support column, and the transmission teeth and reset teeth are arranged vertically. The bevel teeth can alternately mesh with the transmission teeth and reset teeth. A rotating wheel is fixedly connected to the side of the bevel teeth away from the support column. A transmission wheel is connected to the side of the rotating wheel via a belt drive. A rotating shaft is fixedly connected to the side of the transmission wheel away from the bevel teeth. The rotating shaft passes through the connecting sleeve, and one end of the rotating shaft that passes through the outside of the connecting sleeve is rotatably connected to the inside of the connecting box.

6. A circulating deep treatment device for chemical wastewater according to claim 5, characterized in that: The rotating shaft is fixedly connected to a rotating tooth at one end inside the connecting box. The bottom of the rotating tooth meshes with a middle tooth, and gears mesh symmetrically on both sides of the surface of the middle tooth. The bottoms of the two gears are fixedly connected to the tops of the two connecting wheels respectively.

7. A circulating deep treatment device for chemical wastewater according to claim 4, characterized in that: The guide tooth is rotatably connected to a fixed shaft. One end of the fixed shaft passes through one end of the guide tooth. The end of the fixed shaft that passes through the outside of the guide tooth is fixedly connected to the inside of the connecting box. A return spring is fixedly connected to the surface of the fixed shaft inside the guide tooth. The other end of the return spring is fixedly connected to the inside of the guide tooth.

8. A circulating deep treatment device for chemical wastewater according to claim 1, characterized in that: The bottom of the treatment tank is equipped with a filter plate, the bottom of the support column is fixedly connected to the top of the filter plate, and a number of levers are evenly arranged at the bottom of the connecting sleeve, with the levers slidingly connected to the filter plate.

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