A multi-stage industrial wastewater treatment equipment for environmental protection projects

Abstract

The present invention discloses a multi-stage treatment device for industrial wastewater used in environmental protection projects, which relates to the technical field of environmental protection projects. The device comprises a housing and a drug dispensing assembly. A liquid inlet assembly is provided on the top of the housing, and the drug dispensing assembly is provided inside the housing. The drug dispensing assembly comprises a motor, a first bevel gear set, a driving shaft, a drug storage box, a stirring rod, a mixing chamber, a bracket, a counterweight rod, a sealing plug, a compression spring, and a liquid outlet. During the drug addition process, the present invention realizes dynamic control of the drug flow rate through an adaptive adjustment mechanism that links the compression spring with centrifugal force. When the impeller speed changes, the driving shaft speed is synchronously adjusted, and the centrifugal force change is used to drive the sealing plug to open and close, so that the drug liquid output is automatically matched with the wastewater flow rate. This design not only ensures that the drug is evenly dispersed in the mixing chamber, improving the wastewater mixing efficiency, but also avoids waste caused by excessive drug. In addition, the distributed liquid outlet holes on the stirring rod further enhance the drug diffusion effect.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection engineering, in particular to a multi-stage industrial wastewater treatment device for environmental protection engineering. Background Art

[0002] Currently, when treating wastewater, it is necessary to add flocculants and other chemicals to the wastewater to assist in the sedimentation of impurity particles in the wastewater. However, in actual operation, the position of adding the chemicals is usually fixed, which is not convenient for sufficient mixing between the chemical solution and the wastewater, resulting in a problem that affects the overall wastewater treatment efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-stage industrial wastewater treatment equipment for environmental protection engineering to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The gear train is connected with the gear train by the gear train control device, and the gear train is connected with ...

[0006] Furthermore, the liquid inlet assembly includes a volute, a suction pipe, an impeller, a rotating shaft and a synchronous gear. The top of the box body is connected to the volute, and a suction pipe is provided on one side of the volute. The internal rotation of the volute is connected to the impeller, and the middle part of one side of the impeller is fixedly connected to the rotating shaft. The end of the rotating shaft is provided with a synchronous gear, and the synchronous gear is engaged with the first bevel gear set.

[0007] Furthermore, the lower end of the driving shaft is rotatably connected to a transmission box, and the transmission box is fixedly connected to the box body, and a sewage pipe is fixed at the center of the bottom of the box body.

[0008] Furthermore, the lower end of the stirring rod is connected to a compression assembly, which includes a central gear, planetary gears and a ring gear. A central gear is fixed to the bottom of the stirring rod, and the outer side of the central gear is engaged with a planetary gear, and the planetary gear is rotatably connected to the transmission box. The outer side of the planetary gear is engaged with a ring gear, and the ring gear is rotatably connected to the transmission box.

[0009] Furthermore, the compression assembly also includes a driven shaft, a spiral blade and a splash shield. The driven shaft is fixed to the bottom of the ring gear, and the spiral blade is placed on the outer side of the lower end of the driven shaft. The splash shield is fixed to the outer side of the lower part of the transmission box, and the lower end of the splash shield is connected to a hanger.

[0010] Furthermore, the compression assembly also includes a hanger, a spring seat, a pressure plate and a scraper. The spring seat is placed on the middle top surface of the hanger, and the pressure plate is fixed on the top of the spring seat. The scraper is placed on the outer side of the upper end of the driven shaft, and the scraper is slidably connected to the box.

[0011] Furthermore, a flow guide assembly is connected to one side of the box body, and filter screens are arranged on both sides of the upper end of the box body, and one side of the filter screen is connected to a collecting pipe.

[0012] Furthermore, the guide assembly includes a second bevel gear set, a synchronous shaft, a cam divider, a third bevel gear set and a crankshaft. A second bevel gear set is provided on the outer side of the upper end of the driven shaft. A synchronous shaft is fixed to one end of the second bevel gear set. The end of the synchronous shaft is connected to the cam divider, and the cam divider is fixedly connected to the housing. The output shaft of the cam divider is connected to the third bevel gear set, and a crankshaft is fixed inside one side of the third bevel gear set, and the crankshaft is rotatably connected to the housing.

[0013] Furthermore, the guide assembly also includes a rotating plate, a vertical rod, a connecting rod and a rack rack. The middle part of the crankshaft is rotatably connected to the rotating plate, and the top of the rotating plate is rotatably connected to the vertical rod. One side of the vertical rod is rotatably connected to the connecting rod, and the end of the connecting rod is rotatably connected to the rack rack.

[0014] Furthermore, the guide assembly also includes a limit plate, a drive gear and a guide plate. One side of the rack frame is slidably connected to the limit plate, and the limit plate is fixedly connected to the box body. The outer side of the rack frame is engaged with a drive gear, and the guide plate is fixed on one side of the drive gear, and the guide plate is rotatably connected to the box body. Beneficial effects

[0015] 1. During the dosing process, the present invention realizes dynamic control of the drug flow rate through an adaptive adjustment mechanism that links the compression spring with the centrifugal force. When the impeller speed changes, the driving shaft speed is adjusted synchronously, and the change in centrifugal force is used to drive the sealing plug to open and close, so that the drug output volume is automatically matched with the wastewater flow rate. This design not only ensures that the drug is evenly dispersed in the mixing chamber and improves the wastewater mixing efficiency, but also avoids waste caused by excessive drug. In addition, the distributed liquid outlet holes on the stirring rod further enhance the drug diffusion effect. Combined with the continuous water delivery function of the impeller, a dynamically balanced dosing and mixing system is formed.

[0016] 2. The transmission box of the present invention will divert the wastewater and spread it around to prevent it from directly rushing into the sewage pipe and flushing out the internal sediment. At the same time, the scraper is driven by the reduction gear group to make the bottom sediment gather towards the center of the sewage pipe. The spiral blade can also be used in conjunction with the spring pressure plate to achieve efficient solid-liquid separation. When the spiral blade rotates at a low speed, the liquid flows back through the gap, and the flocculent matter is compressed to form a dense layer to prevent liquid leakage. When the sludge pressure exceeds the spring threshold, the pressure plate automatically opens to discharge the sludge, and the deceleration structure can also reduce water flow disturbances to ensure stability during the sedimentation process. This design significantly simplifies the frequency of manual cleaning, realizes automatic control of sludge discharge, and greatly improves treatment efficiency.

[0017] 3. The layered guide structure of the guide plate of the present invention can effectively extend the flow path of wastewater and promote the sedimentation of impurities. At the same time, it can automatically remove the sediment on the plate surface through the linked intermittent flipping mechanism. Since the cam divider will drive the guide plate to flip periodically, the top sediment will fall off to the sewage pipe, and maintain stable diversion in the horizontal state. Then, the overflow filtration of the filter screen and the synchronous regulation of the liquid level are combined to ensure the efficient purification of the upper layer of clean water. This dual-mode design takes into account continuous diversion and self-cleaning functions, reduces maintenance requirements, and the layered treatment further reduces the mutual interference of the upper and lower water qualities, which is beneficial to improving the overall treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a multi-stage industrial wastewater treatment equipment for environmental protection engineering of the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the box body of a multi-stage industrial wastewater treatment equipment for environmental protection engineering of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of a box of a multi-stage industrial wastewater treatment equipment for environmental protection engineering of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of a stirring shaft of a multi-stage industrial wastewater treatment device for environmental protection engineering of the present invention;

[0022] Figure 5This is a schematic diagram of the internal structure of a transmission box of a multi-stage industrial wastewater treatment equipment for environmental protection engineering of the present invention;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of a compression component of a multi-stage industrial wastewater treatment equipment for environmental protection engineering of the present invention;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the diversion component of a multi-stage industrial wastewater treatment equipment for environmental protection engineering according to the present invention.

[0025] Figure: 1, housing; 2, liquid inlet assembly; 201, volute; 202, liquid suction pipe; 203, impeller; 204, rotating shaft; 205, synchronous gear; 3, spraying assembly; 301, motor; 302, first bevel gear set; 303, driving shaft; 304, medicine storage box; 305, stirring rod; 306, mixing chamber; 307, bracket; 308, counterweight rod; 309, sealing plug; 310, compression spring; 311, liquid outlet; 4, transmission box; 5, drain pipe; 6, compression assembly; 601, central gear; 602, Planetary gear; 603, ring gear; 604, driven shaft; 605, spiral blade; 606, splash shield; 607, hanger; 608, spring seat; 609, pressure plate; 610, scraper; 7, guide assembly; 701, second bevel gear set; 702, synchronization shaft; 703, cam divider; 704, third bevel gear set; 705, crankshaft; 706, rotating plate; 707, vertical rod; 708, connecting rod; 709, rack; 710, limit plate; 711, driving gear; 712, guide plate; 8, filter screen; 9, collecting pipe. DETAILED DESCRIPTION

[0026] See also Figures 1 to 4The multi-stage treatment equipment for industrial wastewater used in environmental protection projects provided by the present invention includes a box body 1 and a medicine dispensing component 3. The top of the box body 1 is provided with a liquid inlet component 2, and the medicine dispensing component 3 is arranged inside the box body 1. The medicine dispensing component 3 includes a motor 301, a first bevel gear group 302, a driving shaft 303, a medicine storage box 304, a stirring rod 305, a mixing chamber 306, a bracket 307, a counterweight rod 308, a sealing plug 309, a compression spring 310 and a liquid outlet 311. The motor 301 is arranged on the top of the box body 1, and one end of the motor 301 is connected to the first bevel gear group 302. The driving shaft 303 is fixed in the middle of the first bevel gear group 302, and the top of the driving shaft 303 is rotatably connected to the medicine storage box 304, and a stirring rod 305 is arranged on the outside of the middle of the driving shaft 303. The driving shaft 303 is rotatably connected to the box body 1. The upper end of the driving shaft 303 is hollow, and a mixing chamber 306 is provided in the center of the interior of the box body 1. A bracket 307 is fixed to the inside of the stirring rod 305, and a counterweight rod 308 is slidably connected to the inside of the bracket 307. A sealing plug 309 is provided at one end of the counterweight rod 308, and a compression spring 310 is provided on one side of the sealing plug 309. The liquid inlet assembly 2 includes a volute 201, a suction pipe 202, an impeller 203, a rotating shaft 204 and a synchronous gear 205. The top of the box body 1 is connected to the volute 201, and a suction pipe 202 is provided on one side of the volute 201. The inside of the volute 201 is rotatably connected to the impeller 203, and the middle part of one side of the impeller 203 is fixedly connected to the rotating shaft 204. The end of the rotating shaft 204 is provided with a synchronous gear 205, and the synchronous gear 205 is meshed with the first bevel gear set 302.

[0027] The specific operation is as follows: first, the medicine is placed in the medicine storage box 304. At this time, the compression spring 310 will push the rack rack 709 under the limit of the bracket 307, so that it is tightly attached to the through hole on the outside of the driving shaft 303, which can seal it to prevent the medicine from continuously leaking and causing excessive flow. After that, the motor 301 is started, so that it drives the driving shaft 303 to rotate through the first bevel gear set 302, and it can drive the impeller 203 to rotate in the volute 201 through the synchronous gear 205 and the rotating shaft 204, so that the pipette 202 continuously transports the external waste water into the mixing chamber 306. At the same time, the counterweight rod 308 will also pull the sealing plug 309 under the action of centrifugal force, so that it is separated from the through hole on the driving shaft 303, so that the medicine will flow out from the liquid outlet holes 311 evenly distributed on the stirring rod 305. Out, so that during stirring and mixing, the medicine is evenly distributed in various positions of the mixing chamber 306, so that it is fully mixed with the wastewater, thereby improving the effect of wastewater treatment, and in the process of continuously transporting external wastewater to the mixing chamber 306, the dosage can also be adaptively adjusted. When the speed of the impeller 203 is accelerated to increase the flow rate of the added wastewater, the speed of the driving shaft 303 will also be accelerated, and the larger centrifugal force can be used to increase the rate of dosing. When the speed is reduced according to demand to reduce the flow rate of wastewater during addition, the centrifugal force on the counterweight rod 308 becomes smaller. Under the action of the compression spring 310, the gap between the sealing plug 309 and the driving shaft 303 will also be reduced, thereby reducing the flow rate of dosing. Therefore, in the process of continuous dosing, waste due to excessive dosing can be avoided.

[0028] See also Figure 5 and Figure 6 The lower end of the driving shaft 303 is rotatably connected to the transmission box 4, and the transmission box 4 is fixedly connected to the box body 1, and a sewage pipe 5 is fixed at the center of the bottom of the box body 1, and the lower end of the stirring rod 305 is connected to the compression assembly 6.

[0029] In some embodiments, the above-mentioned compression assembly 6 includes a central gear 601, a planetary gear 602 and a ring gear 603. The central gear 601 is fixed to the bottom of the stirring rod 305, and the outer side of the central gear 601 is engaged with the planetary gear 602, and the planetary gear 602 is rotatably connected to the transmission box 4. The outer side of the planetary gear 602 is engaged with the ring gear 603, and the ring gear 603 is rotatably connected to the transmission box 4.

[0030] The compression assembly 6 also includes a driven shaft 604, a spiral blade 605 and a splash shield 606. The driven shaft 604 is fixed to the bottom of the ring gear 603, and the spiral blade 605 is placed on the outer side of the lower end of the driven shaft 604. The splash shield 606 is fixed to the outer side of the lower part of the transmission case 4, and the lower end of the splash shield 606 is connected to the hanger 607. The compression assembly 6 also includes a hanger 607, a spring seat 608, a pressure plate 609 and a scraper 610. The spring seat 608 is placed on the top surface of the middle part of the hanger 607, and the pressure plate 609 is fixed on the top of the spring seat 608. The scraper 610 is placed on the outer side of the upper end of the driven shaft 604, and the scraper 610 is slidably connected to the box body 1;

[0031] The specific operation is as follows: the wastewater after adding medicine will gradually flow to the lower end of the box body 1. At this time, the transmission box 4 will divert the wastewater to spread it around to avoid directly rushing into the sewage pipe 5 to flush out the internal sediment. After that, the sediment precipitated in the wastewater will slide into the sewage pipe 5 under the action of gravity. During this process, the driving shaft 303 will also drive the driven shaft 604 to rotate through the central gear 601, the planetary gear 602 and the ring gear 603, so that the scraper 610 can scrape the bottom of the box body 1, which is conducive to the sediment gathering to the center. At the same time, the central gear 601, the planetary gear 602 and the ring gear 603 form a deceleration structure, which reduces the impact on the wastewater sedimentation treatment by reducing the rotation speed. At the same time, the driving shaft 303 will also drive the spiral blade 605 to rotate slowly, and because the spring seat 608 will push the pressure plate 609 under the limit of the hanger 607, so that it is in close contact with the bottom of the sewage pipe 5, it can be sealed. Therefore, in the process of slow rotation of the spiral blade 605, due to its strong fluidity, the liquid will flow back to the lower end of the interior of the box 1 from the spiral gap, and the settled flocculent will be pushed to the bottom by the spiral blade 605. At the same time, the solid density is increased through gradual compression, and a "sealing layer" is formed to prevent direct leakage of the liquid. When the pressure is greater than the elastic force of the spring seat 608, the pressure plate 609 will be pushed open, thereby automatically discharging the sludge, which is conducive to improving the convenience of handling internal sediments.

[0032] See also Figure 1 、 Figure 2 and Figure 7 A flow guide assembly 7 is connected to one side of the box body 1, and filter screens 8 are placed on both sides of the upper end of the box body 1, and a collecting pipe 9 is connected to one side of the filter screen 8.

[0033] Specifically, the guide assembly 7 includes a second bevel gear set 701, a synchronous shaft 702, a cam divider 703, a third bevel gear set 704 and a crankshaft 705. The second bevel gear set 701 is provided on the outer side of the upper end of the driven shaft 604. One end of the second bevel gear set 701 is fixed with a synchronous shaft 702. The end of the synchronous shaft 702 is connected with a cam divider 703, and the cam divider 703 is fixedly connected to the housing 1. The output shaft of the cam divider 703 is connected to the third bevel gear set 704, and a crankshaft 705 is fixed inside one side of the third bevel gear set 704, and the crankshaft 705 is rotatably connected to the housing 1. The guide assembly 7 also includes a rotating plate 706, a vertical rod 7 07, connecting rod 708 and rack rack 709, the middle part of the crankshaft 705 is rotatably connected to the rotating plate 706, and the top of the rotating plate 706 is rotatably connected to the vertical rod 707, one side of the vertical rod 707 is rotatably connected to the connecting rod 708, and the end of the connecting rod 708 is rotatably connected to the rack rack 709, the guide assembly 7 also includes a limit plate 710, a driving gear 711 and a guide plate 712, one side of the rack rack 709 is slidably connected to the limit plate 710, and the limit plate 710 is fixedly connected to the box body 1, the outer side of the rack rack 709 is engaged with the driving gear 711, and the guide plate 712 is fixed on one side of the driving gear 711, and the guide plate 712 is rotatably connected to the box body 1.

[0034] The specific operation is as follows: the guide plate 712 is used to extend the path of the wastewater inside the box 1, thereby separating the water in the upper and lower parts at the same time, reducing the mutual influence effect, and facilitating the sedimentation of impurities in the water. At this time, the water at the top of the box 1 is relatively clear, and as the external wastewater continues to enter the box 1, the internal liquid level will rise, so the overflowed water will pass through the filter 8 and enter the collecting pipe 9, so that the wastewater can be finally filtered and treated, further improving the effect of wastewater treatment, and after a period of use, there will be a layer of sediment on the top of the guide plate 712. At the same time, the driven shaft 604 will pass through the second bevel gear set 701 and the synchronous shaft 702, the cam divider 703 and the third bevel gear set 704 drive the crankshaft 705 to rotate half a circle, so that the rotating plate 706 drives the vertical rod 707 to move upward, so that the connecting rod 708 pushes the rack racks 709 on both sides, which can make all the driving gears 711 drive the guide plate 712 to rotate half a circle for flipping operation. The sediment on the top of the guide plate 712 will fall to the lower end, so after multiple operations, it will settle again in the sewage pipe 5, which is convenient for sewage discharge operation. Moreover, since the cam divider 703 is an intermittent transmission mechanism, the guide plate 712 can maintain a horizontal state for a long time after rotation to play a diversion role, and it can also switch quickly during rotation to reduce interference.

[0035] In summary, when using this multi-stage industrial wastewater treatment equipment for environmental protection projects, first, the medicine is placed in the medicine storage box 304. At this time, the compression spring 310 will push the rack rack 709 under the limit of the bracket 307, so that it is in close contact with the through hole on the outside of the driving shaft 303. Secondly, the motor 301 is started, so that it drives the driving shaft 303 to rotate through the first bevel gear set 302, and the impeller 203 can be driven to rotate in the volute 201 through the synchronous gear 205 and the rotating shaft 204, so that the pipette 202 continuously transports the external wastewater to the inside of the mixing chamber 306. At the same time, the counterweight rod 308 will pull the sealing plug 309 under the action of centrifugal force, so that it is separated from the through hole on the driving shaft 303, so that the medicine will flow out from the liquid outlet holes 311 evenly distributed on the stirring rod 305, so that it is fully mixed with the wastewater.

[0036] In addition, when the motor 301 controls the impeller 203 to speed up so that the flow of added wastewater increases, the speed of the driving shaft 303 will also increase, and the larger centrifugal force can be used to increase the rate of dosing. When the speed is reduced to reduce the flow of wastewater during addition, the centrifugal force on the counterweight rod 308 becomes smaller. Under the action of the compression spring 310, the gap between the sealing plug 309 and the driving shaft 303 will also be reduced, so the amount of dosing can be adaptively adjusted. Then, the wastewater after dosing will gradually flow to the lower end of the box body 1. At this time, the transmission box 4 will divert the wastewater to spread it around to avoid directly rushing into the sewage pipe 5 to flush out the internal sediment. After that, the sediment precipitated in the wastewater will slide into the sewage pipe 5 under the action of gravity.

[0037] It should be noted that during this process, the driving shaft 303 will also drive the driven shaft 604 to rotate through the central gear 601, the planetary gear 602 and the ring gear 603, so that the scraper 610 can scrape the bottom of the box body 1, which is conducive to the sediment gathering to the center. At the same time, the driving shaft 303 will also drive the spiral blade 605 to rotate slowly, and because the spring seat 608 will push the pressure plate 609 under the limit of the hanger 607, it will be in close contact with the bottom of the sewage pipe 5, so that it can be sealed. Therefore, in the process of slow rotation of the spiral blade 605, due to its strong fluidity, the liquid will flow back to the lower end of the interior of the box body 1 from the spiral gap, and the settled flocculent matter will be pushed to the bottom by the spiral blade 605. At the same time, the solid density is increased through progressive compression, and a "sealing layer" is formed. When the pressure is greater than the elastic force of the spring seat 608, the pressure plate 609 will be pushed open, thereby automatically discharging the sludge.

[0038] Then, the guide plate 712 is used to extend the path of the wastewater inside the box 1, thereby separating the upper and lower parts of the water at the same time, reducing the mutual influence effect, and facilitating the sedimentation of impurities in the water. At this time, the water at the top of the box 1 is relatively clear, and as the external wastewater continues to enter the box 1, the internal liquid level will rise, so the overflowed water will pass through the filter 8 into the collecting pipe 9, so that the wastewater can be finally filtered and treated.

[0039] After a period of use, there will be a layer of sediment on the top of the guide plate 712. At the same time, the driven shaft 604 will drive the crankshaft 705 to rotate half a circle through the second bevel gear set 701, the synchronous shaft 702, the cam divider 703 and the third bevel gear set 704, so that the rotating plate 706 drives the vertical rod 707 to move upward, thereby causing the connecting rod 708 to push the rack racks 709 on both sides, so that all the driving gears 711 can drive the guide plate 712 to rotate half a circle for flipping over. The sediment on the top of the guide plate 712 will fall to the lower end, so after multiple operations, it will settle again in the sewage pipe 5, which is convenient for sewage discharge operations.

[0040] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A multi-stage industrial wastewater treatment equipment for environmental protection engineering, characterized in that: The invention comprises a box body and a medicine-dispensing component, wherein a liquid inlet component is provided on the top of the box body, and the medicine-dispensing component is arranged inside the box body, and the medicine-dispensing component comprises a motor, a first bevel gear set, a driving shaft, a medicine storage box, a stirring rod, a mixing chamber, a bracket, a counterweight rod, a sealing plug, a compression spring and a liquid outlet. The motor is arranged on the top of the box body, and one end of the motor is connected to the first bevel gear set, a driving shaft is fixed to the middle part of the first bevel gear set, and the top of the driving shaft is rotatably connected to the medicine storage box, and a stirring rod is arranged on the outer side of the middle part of the driving shaft, the driving shaft is rotatably connected to the box body, and the upper end of the driving shaft is hollow, a mixing chamber is opened in the center of the interior of the box body, a bracket is fixed to the interior of the stirring rod, and the interior of the bracket is slidably connected to the counterweight rod, a sealing plug is arranged on one end of the counterweight rod, and the sealing plug A compression spring is provided on one side, and a guide assembly is connected to the box body on one side, and filters are placed on both sides of the upper end of the box body, and one side of the filter is connected to the collecting pipe, the guide assembly includes a second bevel gear set, a synchronous shaft, a cam divider, a third bevel gear set and a crankshaft, the guide assembly also includes a rotating plate, a vertical rod, a connecting rod and a rack rack, the middle of the crankshaft is rotatably connected to the rotating plate, and the top of the rotating plate is rotatably connected to the vertical rod, one side of the vertical rod is rotatably connected to the connecting rod, and the end of the connecting rod is rotatably connected to the rack rack, the guide assembly also includes a limit plate, a driving gear and a guide plate, one side of the rack rack is slidably connected to the limit plate, and the limit plate is fixedly connected to the box body, the outer side of the rack rack is meshed with a driving gear, and the guide plate is fixed on one side of the driving gear, and the guide plate is rotatably connected to the box body.

2. The multi-stage industrial wastewater treatment equipment for environmental protection engineering according to claim 1, characterized in that: The liquid inlet assembly includes a volute, a suction pipe, an impeller, a rotating shaft and a synchronous gear. The top of the box body is connected to the volute, and a suction pipe is provided on one side of the volute. The inside of the volute is rotatably connected to the impeller, and the middle part of one side of the impeller is fixedly connected to the rotating shaft. The end of the rotating shaft is provided with a synchronous gear, and the synchronous gear is meshed with the first bevel gear set.

3. The multi-stage industrial wastewater treatment equipment for environmental protection engineering according to claim 2, characterized in that: The lower end of the driving shaft is rotatably connected to a transmission box, and the transmission box is fixedly connected to the box body, and a sewage pipe is fixed at the bottom center of the box body.

4. The multi-stage industrial wastewater treatment equipment for environmental protection engineering according to claim 3 is characterized in that: The lower end of the stirring rod is connected to a compression assembly, which includes a central gear, planetary gears and a ring gear. The central gear is fixed to the bottom of the stirring rod, and the outer side of the central gear is engaged with a planetary gear, and the planetary gear is rotatably connected to the transmission box. The outer side of the planetary gear is engaged with a ring gear, and the ring gear is rotatably connected to the transmission box.

5. The multi-stage industrial wastewater treatment equipment for environmental protection engineering according to claim 4, characterized in that: The compression assembly also includes a driven shaft, a spiral blade and a splash shield. The driven shaft is fixed to the bottom of the gear ring, and the spiral blade is placed on the outer side of the lower end of the driven shaft. The splash shield is fixed to the outer side of the lower part of the transmission box, and the lower end of the splash shield is connected to a hanger.

6. The multi-stage industrial wastewater treatment equipment for environmental protection engineering according to claim 5, characterized in that: The compression assembly also includes a hanger, a spring seat, a pressure plate and a scraper. The middle top surface of the hanger is provided with a spring seat, and the top of the spring seat is fixed with a pressure plate. The scraper is provided on the outer side of the upper end of the driven shaft, and the scraper is slidably connected to the box.

7. The multi-stage industrial wastewater treatment equipment for environmental protection engineering according to claim 6, characterized in that: A second bevel gear set is provided on the outer side of the upper end of the driven shaft, a synchronous shaft is fixed to one end of the second bevel gear set, the end of the synchronous shaft is connected to a cam divider, and the cam divider is fixedly connected to the housing, the output shaft of the cam divider is connected to the third bevel gear set, and a crankshaft is fixed inside one side of the third bevel gear set, and the crankshaft is rotatably connected to the housing.

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