Petrochemical sewage treatment device

Abstract

The invention discloses a petrochemical engineering sewage treatment device, and relates to the technical field of sewage treatment.The petrochemical engineering sewage treatment device comprises a tank body, the top of the tank body is provided with a chemical adding pipe, the petrochemical engineering sewage treatment device further comprises a catalysis device, through the arrangement of the catalysis device, chemicals are stored in a chemical storage tank, and the bottom of a chemical collection tank is opened through a driving frame, a rotating rod, a crank rod, a push plate, a sliding groove frame and an L-shaped plate; by means of accurate quantitative feeding, waste of the medicament is avoided, the usage amount of the medicament is appropriate, the medicament purchasing and storing cost is reduced, under the condition that equipment is not used, the medicament is likely to cake in the medicament storage tank after being stored for a long time, at the moment, the caked medicament is smashed through rotation of the blade, and the medicament is prevented from being blocked. The contact area of medicament particles and water is increased through smashing, the medicament particles can be dissolved in sewage more quickly, the treatment efficiency is improved, and the medicament and the sewage are mixed through rotation of stirring blades driven by a rotating rod after entering.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and specifically to a petrochemical sewage treatment device. Background Art

[0002] During the petrochemical production process, a large amount of sewage is generated. This sewage contains a large amount of organic pollutants, petroleum substances, sulfides, ammonia nitrogen, etc. If directly discharged without treatment, it will cause great harm to the environment, such as water pollution, soil pollution, etc., and at the same time, it will also cause waste of resources.

[0003] The patent with the patent publication number CN215102595U relates to the technical field of sewage treatment. This patent discloses a petrochemical sewage treatment device, including a mixing tank and a filter rack. A buffer tank is arranged on one side of the mixing tank. A motor is installed at the top of the mixing tank. The output end of the motor is connected to a stirring rack. A water inlet pipe penetrates through the top of the buffer tank. A chemical dosing pipe is connected through the side of the mixing tank close to the motor. A through hole is opened above the side of the mixing tank close to the buffer tank. The filter rack is arranged inside the through hole, and a sealing rotating plate is movably connected to the inner side of the through hole. In this petrochemical sewage treatment device, the sewage passes through the filter rack along the water outlet on one side of the buffer tank to filter the impurities floating on the surface of the sewage, so that the sewage enters the mixing tank. The sealing rotating plate is rotated and opened inside the through hole by driving the pull plate, and the filter rack is pulled out of the through hole by pulling the pull ring, so as to facilitate the device to regularly clean the filtered floating impurities.

[0004] In the above patent, it is convenient for the device to regularly clean the filtered floating impurities. However, the current equipment has the following problems: it is necessary to manually monitor the water quality and adjust the chemical dosing amount frequently, which increases the labor cost, and it is difficult to ensure the timeliness and accuracy of chemical dosing by manual operation. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a petrochemical sewage treatment device to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A petrochemical sewage treatment device includes a tank body, a chemical adding pipe is arranged at the top of the tank body, and a catalytic device is also included; wherein, the catalytic device includes a push plate, a chute frame, an L-shaped plate, a medicine storage tank, a medicine collecting tank, a sealing plate, a connecting rod, a gear rod and a toothed rod. The push plate is slidably installed on the surface of the tank body, the chute frame is fixedly installed at the top of the tank body, the L-shaped plate is fixedly installed at the bottom of the chute frame, the medicine storage tank is fixedly installed at the top of the chute frame, the medicine collecting tank is slidably installed on the inner wall of the chute frame, a first spring is arranged between the medicine collecting tank and the chute frame, and the first spring drives the medicine collecting tank to reset. The sealing plate is rotatably installed on the surface of the medicine collecting tank, the connecting rod is fixedly installed at the rear side of the medicine collecting tank, the gear rod is rotatably installed on the inner wall of the medicine storage tank, one side of the toothed rod is slidably installed on the top of the medicine storage tank, and the other side of the toothed rod is fixedly installed at the front side of the connecting rod. When the sealing plate disengages from the L-shaped plate, the sealing plate rotates, so that the bottom of the medicine collecting tank is opened, and the medicine therein drops into the chemical adding pipe. After the first spring drives the medicine collecting tank to reset, at this time, the sealing plate contacts the L-shaped plate and returns to the initial state again; Wherein, a control device for discharging sewage and a sampling device for sampling sewage are arranged inside the tank body.

[0007] According to the above technical solution, the gear rod meshes with the toothed rod, and blades are arranged on the circumferential surface of the gear rod. The agglomerated medicine is broken by the rotation of the blades.

[0008] According to the above technical solution, the catalytic device further includes a driving frame, a rotating rod and a crank rod. The driving frame is arranged at the top of the tank body, the rotating rod is rotatably installed on the inner wall of the tank body, the rotating rod is in transmission connection with the output end of the driving frame through a first belt, one side of the crank rod is rotatably installed on the surface of the rotating rod, the other side of the crank rod is rotatably installed on the surface of the push plate, and stirring blades are arranged on the circumferential surface of the rotating rod. After the medicine and sewage enter, the rotation of the rotating rod drives the rotation of the stirring blades to mix the two.

[0009] According to the above technical solution, the control device includes an input port, a cover plate, a filter plate and a scraping plate. The input port is arranged on the inner wall of the tank body, the cover plate is rotatably installed on the surface of the input port, the filter plate is arranged on the inner wall of the input port, and the scraping plate is fixedly installed on the circumferential surface of the scraping plate. The mixed sewage passes through the filter plate and then enters from the input port. The rotation of the rotating rod drives the rotation of the scraping plate, and the rotation of the scraping plate scrapes off the impurities on the surface of the filter plate, improving the filtering effect.

[0010] According to the above technical solution, the control device further includes a fixed block, a centrifugal frame, a sliding frame and a connection button. The fixed block is fixedly installed on the circumferential surface of the rotating rod. The centrifugal frame is rotatably installed on the surface of the fixed block. The sliding frame is sleeved on the circumferential surface of the rotating rod. One side of the connection button is rotatably installed on the inner wall of the sliding frame, and the other side of the connection button is rotatably installed on the surface of the centrifugal frame. A counterweight ball is arranged at the bottom of the centrifugal frame. When the rotating rod rotates, it drives the fixed block to rotate. The rotation of the fixed block drives the centrifugal frame to rotate. The centrifugal frame generates centrifugal force under rapid rotation. At this time, under the action of the counterweight ball, the centrifugal frame performs centrifugal rotation. The rotation of the centrifugal frame drives the connection button to rotate downward, and the rotation of the connection button drives the sliding frame to move downward.

[0011] According to the above technical solution, the control device further includes a sliding button and a linkage rod. The sliding button is sleeved on the circumferential surface of the rotating rod. One side of the linkage rod is fixedly installed on the surface of the cover plate, and the other side of the linkage rod is fixedly installed on the surface of the sliding button. The movement of the sliding frame drives the sliding button to move downward. The movement of the sliding button causes the linkage rod to rotate downward. By the lever principle, the other side of the linkage rod moves upward, that is, it drives the cover plate to rotate upward until the input port is blocked.

[0012] According to the above technical solution, the sampling device includes a conduit, a sampling tube, a one-way valve and a piston rod. The conduit is fixedly installed on the inner wall of the tank. The sampling tube is fixedly installed on the inner wall of the tank. The one-way valve is arranged on the inner wall of the conduit. One side of the piston rod is slidably installed on the inner wall of the conduit, and the other side of the piston rod is fixedly installed on the surface of the linkage rod. When the piston rod moves upward, a negative pressure is formed in the conduit, and the sewage in the tank is pressed into the conduit under the action of the atmospheric pressure. When the piston rod moves downward, the one-way valve closes to prevent water from flowing back. At the same time, the piston rod squeezes the water in the tank upward, causing it to flow out of the conduit and into the sampling tube.

[0013] According to the above technical solution, the sampling device further includes a braking frame, an output port and a sealing cover. The braking frame is fixedly installed on the circumferential surface of the piston rod. The output port is arranged at the bottom of the tank. One side of the sealing cover is slidably installed on the inner wall of the output port, and the other side of the sealing cover is fixedly installed on the bottom of the braking frame. The movement of the braking frame drives the sealing cover to move. The movement of the sealing cover will open the output port, allowing the sewage to be output from the tank.

[0014] The present invention provides a petrochemical sewage treatment device, which has the following beneficial effects: (1) In this invention, through the setting of the catalytic device, the medicament is stored in the medicine storage tank. Through the driving frame, rotating rod, crank rod, push plate, chute frame, and L-shaped plate, the bottom of the medicine collection tank is opened, and the medicament therein drops into the medicine adding pipe. The precise quantitative addition avoids the waste of the medicament, making the dosage of the medicament just right. It will neither require secondary treatment due to insufficient addition resulting in unqualified treatment effect, nor cause waste of the medicament and unnecessary cost increase due to excessive addition, thereby reducing the cost of medicament procurement and storage. When the equipment is not in use, the medicament may agglomerate in the medicine storage tank over a long period. At this time, the rotating blade breaks up the agglomerated medicament. The agglomeration of the medicament will lead to a decrease in its contact area with water and a slower dissolution rate. After being broken, the medicament particles become smaller, the contact area with water increases, and it can dissolve in the sewage faster, improving the treatment efficiency. After the medicament and sewage enter, the rotating rod drives the rotation of the mixing blades to mix the two.

[0015] (2) In this invention, through the setting of the control device, the mixed sewage passes through the filter plate and then is input from the input port. Through the rotating rod and scraper, the impurities on the surface of the filter plate are scraped off, improving the filtering effect. The cover plate is initially in an open state to allow the sewage to be input. Under the action of the fixed block and counterweight ball, the centrifugal frame rotates, cooperating with the connecting button, sliding frame, sliding button, and linkage rod to drive the cover plate to rotate upward until the input port is blocked. In this way, the input port is closed when the drug and sewage are mixed, and input is carried out when the mixing stops and output is carried out when it stops, which can prevent the treated sewage from staying in the device for too long and causing secondary pollution, ensuring that the output sewage meets the discharge standards.

[0016] (3) In this invention, through the setting of the sampling device, the movement of the sliding button drives the piston rod to move downward. When the piston rod moves upward, a negative pressure is formed in the conduit, and the sewage in the tank is pressed into the conduit under the action of atmospheric pressure; when the piston rod moves downward, the one-way valve closes to prevent water from flowing back. At the same time, the piston rod squeezes the water in the tank upward, causing it to flow out of the conduit and into the sampling tube. By automatically sampling at different stages of sewage treatment, the concentration changes of various pollutants in the sewage can be understood in real time, thereby judging the removal effect of the sewage treatment process on different pollutants and promptly discovering problems existing in the treatment process. The piston rod and the braking frame cause the sealing cover to move, opening the output port, allowing the sewage to be output from the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the sectional structure of the tank body of the present invention; Figure 3 It is a schematic diagram of the position structure of the rotating rod and the crank rod of the present invention; Figure 4Schematic diagram of the position structure of the L-shaped plate and the connecting rod of the present invention; Figure 5 Schematic diagram of the structure of the sealing plate and the medicine collecting tank of the present invention; Figure 6 Schematic diagram of the position structure of the scraping plate and the rotating rod of the present invention; Figure 7 Schematic diagram of the internal structure of the conduit of the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure of part A in; Figure 9 Schematic diagram of the position structure of the output port and the sealing cover of the present invention.

[0018] In the figure: 1, tank body; 2, medicine adding pipe; 3, push plate; 4, chute frame; 5, L-shaped plate; 6, medicine storage tank; 7, medicine collecting tank; 8, sealing plate; 9, connecting rod; 10, gear rod; 11, rack; 12, driving frame; 13, rotating rod; 14, crank rod; 20, input port; 21, cover plate; 22, filter plate; 23, scraping plate; 24, fixing block; 25, centrifugal frame; 26, sliding frame; 27, connecting button; 28, sliding button; 29, linkage rod; 30, conduit; 31, sampling pipe; 32, one-way valve; 33, piston rod; 34, braking frame; 35, output port; 36, sealing cover. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 5An embodiment of the present invention is: a petrochemical wastewater treatment device, including a tank body 1, a dosing pipe 2 is arranged on the top of the tank body 1, and also includes a catalytic device; wherein the catalytic device includes a push plate 3, a slide frame 4, an L-shaped plate 5, a medicine storage tank 6, a medicine collecting tank 7, a sealing plate 8, a connecting rod 9, a gear rod 10 and a gear rod 11, the push plate 3 is slidably mounted on the surface of the tank body 1, the slide frame 4 is fixedly mounted on the top of the tank body 1, the L-shaped plate 5 is fixedly mounted on the bottom of the slide frame 4, the medicine storage tank 6 is fixedly mounted on the top of the slide frame 4, the medicine collecting tank 7 is slidably mounted on the inner wall of the slide frame 4, and a No. 1 spring is arranged between the medicine collecting tank 7 and the slide frame 4 The medicine collecting tank 7 is reset by the spring No. 1 set, the sealing plate 8 is rotatably installed on the surface of the medicine collecting tank 7, the connecting rod 9 is fixedly installed on the rear side of the medicine collecting tank 7, the gear rod 10 is rotatably installed on the inner wall of the medicine storage tank 6, one side of the gear rod 11 is slidably installed on the top of the medicine storage tank 6, and the other side of the gear rod 11 is fixedly installed on the front side of the connecting rod 9. Accurate quantitative addition avoids the waste of medicine and makes the use of medicine just right. There is no need for secondary treatment due to insufficient addition, and there is no waste of medicine and unnecessary cost increase due to excessive addition, thereby reducing the purchase and storage costs of medicine.

[0021] The gear rod 10 is meshed with the gear rod 11, and a blade is provided on the circumferential surface of the gear rod 10. When the equipment is not used, the medicine may clump in the medicine storage tank 6 due to long-term storage. At this time, the rotation of the blade breaks up the clumped medicine, making the medicine particles smaller and increasing the contact area with water, so that it can be dissolved in sewage more quickly, thereby improving the treatment efficiency.

[0022] The catalytic device also includes a driving frame 12, a rotating rod 13 and a crank rod 14. The driving frame 12 is arranged on the top of the tank body 1, and the rotating rod 13 is rotatably installed on the inner wall of the tank body 1. The rotating rod 13 is transmission-connected to the output end of the driving frame 12 through a No. 1 belt. One side of the crank rod 14 is rotatably installed on the surface of the rotating rod 13, and the other side of the crank rod 14 is rotatably installed on the surface of the push plate 3. The circumferential surface of the rotating rod 13 is provided with a stirring blade. After the medicine and sewage enter, the stirring blade is driven to rotate by the rotating rod 13 to mix the two.

[0023] During the operation of this embodiment, the medicament is stored in the medicament storage tank 6. When the medicament storage tank 6 overlaps with the medicament collection tank 7, the medicament enters the medicament collection tank 7. And in the initial state of the medicament collection tank 7, its sealing plate 8 always seals the bottom of the medicament collection tank 7 until it disengages from the contact with the L-shaped plate 5. The output end of the driving frame 12 drives the first belt driving rotating rod 13 to rotate. The rotation of the rotating rod 13 drives the crank rod 14 to move. The movement of the crank rod 14 will drive the push plate 3 to slide. The sliding of the push plate 3 will contact the medicament collection tank 7 and push the medicament collection tank 7 to move along the chute frame 4 while stretching the first spring. When the medicament collection tank 7 moves, its rear side will block the bottom of the medicament storage tank 6 to prevent the medicament from falling. When the sealing plate 8 disengages from the L-shaped plate 5, the sealing plate 8 will rotate, opening the bottom of the medicament collection tank 7 and causing the medicament therein to fall into the dosing pipe 2. After the first spring drives the medicament collection tank 7 to reset, at this time the sealing plate 8 contacts the L-shaped plate 5 and returns to the initial state again. Precise quantitative dosing avoids the waste of medicament, making the dosage of the medicament just right. It will neither require secondary treatment due to insufficient dosing resulting in unqualified treatment effect, nor cause waste of medicament and unnecessary cost increase due to excessive dosing, thus reducing the medicament procurement and storage costs. When the medicament collection tank 7 moves, it drives the connecting rod 9 to move. The movement of the connecting rod 9 drives the toothed rod 11 to move. The movement of the toothed rod 11 will drive the gear rod 10 to rotate. The rotation of the gear rod 10 drives the blade to rotate. When the equipment is not in use, the medicament may caking in the medicament storage tank 6 for a long time. At this time, the caked medicament is broken by the rotation of the blade. The caking of the medicament will lead to a reduction in its contact area with water and a slower dissolution rate. After being broken, the medicament particles become smaller, the contact area with water increases, and it can be dissolved in the sewage faster, improving the treatment efficiency. After the medicament and sewage enter, the rotation of the stirring piece is driven by the rotating rod 13 to mix the two.

[0024] Please refer to Figures 1 - 9 , on the basis of the above embodiment, in another embodiment of the present invention, a control device for discharging sewage and a sampling device for sampling sewage are provided inside the tank body 1. The control device includes an input port 20, a cover plate 21, a filter plate 22 and a scraper 23. The input port 20 is arranged on the inner wall of the tank body 1. The cover plate 21 is rotatably installed on the surface of the input port 20. The filter plate 22 is arranged on the inner wall of the input port 20. The scraper 23 is fixedly installed on the circumferential surface of the scraper 23. The rotation of the scraper 23 causes the impurities on the surface of the filter plate 22 to be scraped off, improving the filtering effect.

[0025] The control device further includes a fixing block 24, a centrifugal frame 25, a sliding frame 26 and a connection button 27. The fixing block 24 is fixedly installed on the circumferential surface of the rotating rod 13. The centrifugal frame 25 is rotatably installed on the surface of the fixing block 24. The sliding frame 26 is sleeved on the circumferential surface of the rotating rod 13. One side of the connection button 27 is rotatably installed on the inner wall of the sliding frame 26, and the other side of the connection button 27 is rotatably installed on the surface of the centrifugal frame 25. A counterweight ball is arranged at the bottom of the centrifugal frame 25. When the centrifugal frame 25 rotates rapidly, a centrifugal force is generated. At this time, under the action of the counterweight ball, the centrifugal frame 25 rotates.

[0026] The control device further includes a sliding button 28 and a linkage rod 29. The sliding button 28 is sleeved on the circumferential surface of the rotating rod 13. One side of the linkage rod 29 is fixedly installed on the surface of the cover plate 21, and the other side of the linkage rod 29 is fixedly installed on the surface of the sliding button 28. In this way, when the drug is mixed with the sewage, the input port 20 is closed, and when the mixing stops, the input is carried out, and the output is carried out when it stops.

[0027] The sampling device includes a conduit 30, a sampling tube 31, a one-way valve 32 and a piston rod 33. The conduit 30 is fixedly installed on the inner wall of the tank body 1. The sampling tube 31 is fixedly installed on the inner wall of the tank body 1. The one-way valve 32 is arranged on the inner wall of the conduit 30. One side of the piston rod 33 is slidably installed on the inner wall of the conduit 30, and the other side of the piston rod 33 is fixedly installed on the surface of the linkage rod 29. By automatically sampling at different stages of sewage treatment, the concentration changes of various pollutants in the sewage can be understood in real time.

[0028] The sampling device further includes a braking frame 34, an output port 35 and a sealing cover 36. The braking frame 34 is fixedly installed on the circumferential surface of the piston rod 33. The output port 35 is arranged at the bottom of the tank body 1. One side of the sealing cover 36 is slidably installed on the inner wall of the output port 35, and the other side of the sealing cover 36 is fixedly installed on the bottom of the braking frame 34. The movement of the braking frame 34 drives the movement of the sealing cover 36, and the movement of the sealing cover 36 will open the output port 35, so that the sewage is output from the tank body 1.

[0029] When this embodiment works, the mixed sewage passes through the filter plate 22 and then is input from the input port 20. The rotation of the rotating rod 13 drives the rotation of the scraper 23. The rotation of the scraper 23 causes the impurities on the surface of the filter plate 22 to be scraped off, improving the filtering effect. The cover plate 21 is in an open state initially to allow the sewage to be input. While the rotating rod 13 rotates, it drives the rotation of the fixed block 24. The rotation of the fixed block 24 drives the rotation of the centrifugal frame 25. The centrifugal frame 25 generates centrifugal force under rapid rotation. At this time, under the action of the counterweight ball, the centrifugal frame 25 rotates centrifugally. The rotation of the centrifugal frame 25 drives the connecting button 27 to rotate downward. The rotation of the connecting button 27 drives the sliding frame 26 to move downward. The movement of the sliding frame 26 drives the sliding button 28 to move downward. The movement of the sliding button 28 causes the linkage rod 29 to rotate downward. Through the lever principle, the other side of the linkage rod 29 moves upward, that is, drives the cover plate 21 to rotate upward until the input port 20 is blocked. In this way, the input port 20 is closed when the drug is mixed with the sewage, input is carried out when the mixing stops, and output is carried out when it stops, which can avoid secondary pollution caused by the treated sewage staying in the device for too long and ensure that the output sewage meets the discharge standards; The movement of the sliding button 28 drives the piston rod 33 to move downward. Through the movement of the piston rod 33, when the piston rod 33 moves upward, a negative pressure is formed in the conduit 30, and the sewage in the tank 1 is pressed into the conduit 30 under the action of the atmospheric pressure; when the piston rod 33 moves downward, the one-way valve 32 closes to prevent water from flowing back. At the same time, the piston rod 33 squeezes the water in the tank 1 upward, causing it to flow out of the conduit 30 and into the sampling tube 31. By automatically sampling at different stages of sewage treatment, the concentration changes of various pollutants in the sewage can be understood in real time, so as to judge the removal effect of the sewage treatment process on different pollutants and timely discover the problems existing in the treatment process. While the piston rod 33 moves, it drives the brake frame 34 to move. The movement of the brake frame 34 drives the sealing cover 36 to move. The movement of the sealing cover 36 will open the output port 35, allowing the sewage to be output from the tank 1.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A petrochemical wastewater treatment device, comprising a tank (1), characterized in that: The tank body (1) is provided with a dosing pipe (2) on the top thereof, and also includes a catalytic device; The catalytic device comprises a push plate (3), a slide groove frame (4), an L-shaped plate (5), a medicine storage tank (6), a medicine collecting tank (7), a sealing plate (8), a connecting rod (9), a gear rod (10) and a gear rod (11), wherein the push plate (3) is slidably mounted on the surface of the tank body (1), the slide groove frame (4) is fixedly mounted on the top of the tank body (1), the L-shaped plate (5) is fixedly mounted on the bottom of the slide groove frame (4), the medicine storage tank (6) is fixedly mounted on the top of the slide groove frame (4), and the collecting tank (7) is fixedly mounted on the top of the slide groove frame (4). The medicine tank (7) is slidably mounted on the inner wall of the slide frame (4), a No. 1 spring is provided between the medicine collecting tank (7) and the slide frame (4), the sealing plate (8) is rotatably mounted on the surface of the medicine collecting tank (7), the connecting rod (9) is fixedly mounted on the rear side of the medicine collecting tank (7), the gear rod (10) is rotatably mounted on the inner wall of the medicine storage tank (6), one side of the gear rod (11) is slidably mounted on the top of the medicine storage tank (6), and the other side of the gear rod (11) is fixedly mounted on the front side of the connecting rod (9); Wherein, a control device for discharging sewage and a sampling device for sampling sewage are arranged inside the tank body (1).

2. A petrochemical wastewater treatment device according to claim 1, characterized in that: The gear rod (10) is meshed with a gear rod (11), and a blade is provided on the circumferential surface of the gear rod (10).

3. A petrochemical wastewater treatment device according to claim 2, characterized in that: The catalytic device further comprises a driving frame (12), a rotating rod (13) and a crank rod (14); the driving frame (12) is arranged on the top of the tank body (1); the rotating rod (13) is rotatably mounted on the inner wall of the tank body (1); the rotating rod (13) is transmission-connected to the output end of the driving frame (12) via a No. 1 belt; one side of the crank rod (14) is rotatably mounted on the surface of the rotating rod (13); the other side of the crank rod (14) is rotatably mounted on the surface of the push plate (3); and a stirring blade is arranged on the circumferential surface of the rotating rod (13).

4. A petrochemical wastewater treatment device according to claim 3, characterized in that: The control device comprises an input port (20), a cover plate (21), a filter plate (22) and a scraper (23); the input port (20) is arranged on the inner wall of the tank body (1); the cover plate (21) is rotatably mounted on the surface of the input port (20); the filter plate (22) is arranged on the inner wall of the input port (20); and the scraper (23) is fixedly mounted on the circumferential surface of the scraper (23).

5. A petrochemical wastewater treatment device according to claim 4, characterized in that: The control device further comprises a fixed block (24), a centrifugal frame (25), a sliding frame (26) and a connecting button (27); the fixed block (24) is fixedly mounted on the circumferential surface of the rotating rod (13); the centrifugal frame (25) is rotatably mounted on the surface of the fixed block (24); the sliding frame (26) is sleeved on the circumferential surface of the rotating rod (13); one side of the connecting button (27) is rotatably mounted on the inner wall of the sliding frame (26); the other side of the connecting button (27) is rotatably mounted on the surface of the centrifugal frame (25); and a counterweight ball is arranged at the bottom of the centrifugal frame (25).

6. A petrochemical wastewater treatment device according to claim 5, characterized in that: The control device further comprises a sliding button (28) and a linkage rod (29), wherein the sliding button (28) is sleeved on the circumferential surface of the rotating rod (13), one side of the linkage rod (29) is fixedly mounted on the surface of the cover plate (21), and the other side of the linkage rod (29) is fixedly mounted on the surface of the sliding button (28).

7. A petrochemical wastewater treatment device according to claim 6, characterized in that: The sampling device comprises a catheter (30), a sampling tube (31), a one-way valve (32) and a piston rod (33); the catheter (30) is fixedly mounted on the inner wall of the tank body (1); the sampling tube (31) is fixedly mounted on the inner wall of the tank body (1); the one-way valve (32) is arranged on the inner wall of the catheter (30); one side of the piston rod (33) is slidably mounted on the inner wall of the catheter (30); and the other side of the piston rod (33) is fixedly mounted on the surface of the linkage rod (29).

8. A petrochemical wastewater treatment device according to claim 7, characterized in that: The sampling device further comprises a brake frame (34), an output port (35) and a sealing cover (36), wherein the brake frame (34) is fixedly mounted on the circumferential surface of the piston rod (33), the output port (35) is arranged at the bottom of the tank body (1), one side of the sealing cover (36) is slidably mounted on the inner wall of the output port (35), and the other side of the sealing cover (36) is fixedly mounted on the bottom of the brake frame (34).

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