A floating disc type petrochemical wastewater lifting device

Abstract

The present invention discloses a floating plate type petrochemical wastewater lifting device, which relates to the field of petrochemical wastewater treatment equipment. The device comprises a floating plate, a cleaning component and a group of filter components. An oil collecting trough is provided on the side wall of the floating plate. Sliding guide grooves are provided at the upper and lower ends of the oil collecting trough. A plurality of oil inlet holes are opened on the oil collecting trough. An annular tube is installed in the floating plate. A plurality of oil inlet pipes are provided on the annular tube. The annular tubes are connected with the oil inlet holes through the oil inlet pipes. A liquid inlet pipe and a water suction pipe are provided on the floating plate. The water suction pipe is connected with the liquid inlet pipe through a first connecting pipe. The annular tube is connected with the liquid inlet pipe. In the process of collecting floating oil, the present application realizes the movement of the moving block in the sliding guide groove through the cooperation of the teeth and the gear ring of the gear, so that the ball brush on the moving block cleans the oil inlet hole on the oil collecting trough, thereby preventing floating objects from clogging the oil inlet hole and reducing the absorption efficiency of the floating oil.

Description

Technical Field

[0001] The present invention relates to the field of petrochemical wastewater treatment equipment, and more particularly to a floating disc type petrochemical wastewater lifting device. Background Art

[0002] The petrochemical industry generates large amounts of wastewater during production and processing. This wastewater contains oil, heavy metals, and other harmful substances. If not treated promptly, it can cause serious environmental pollution. Traditional sewage lifting devices effectively eliminate the waste gas layer between the sewage and the air by installing a float on the water surface of the sewage lifting device. This design not only regulates the volume of the oily sewage lifting device but also prevents the exhaust gas emitted by the breathing effect caused by liquid level fluctuations, thereby reducing environmental pollution. The core components of this device include a screen tank, a connecting pipe, a sewage storage device, a float, and a sewage lifting pump. The screen tank is used to initially filter solid matter from the sewage, and the connecting pipe is responsible for connecting the screen tank to the sewage storage device.

[0003] However, in the existing technology, when treating floating oil, the oil collecting tank on the floating plate will be clogged by floating objects, thereby reducing the absorption efficiency of the floating oil. At the same time, when treating sediment in sewage, traditional devices usually use a basket-type filter to filter the sediment in sewage. When the sediment in the basket-type filter is full, the staff needs to manually clean or replace the filter screen in the filter, and the operation of the device needs to be stopped, which in turn affects the operation of the entire sewage treatment system. Summary of the Invention

[0004] In view of the problem in the prior art that the absorption efficiency of floating oil is reduced due to blockage of floating objects, and when filtering the sediment in the sewage, the staff needs to manually clean or replace the filter screen in the filter, which affects the operation of the entire sewage treatment system, the purpose of the present invention is to provide a floating plate petrochemical sewage lifting device.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A floating plate type petrochemical wastewater lifting device comprises a floating plate, a cleaning assembly and a group of filter assemblies, an oil collecting trough is provided on the side wall of the floating plate, a sliding guide groove is provided at the upper and lower ends of the oil collecting trough, a plurality of oil inlet holes are opened on the oil collecting trough, an annular pipe is installed in the floating plate, a plurality of oil inlet pipes are provided on the annular pipe, the annular pipe is connected to the oil inlet holes through the oil inlet pipes, a liquid inlet pipe and a water suction pipe are provided on the floating plate, the water suction pipe is connected to the liquid inlet pipe through a first connecting pipe, the annular pipe is connected to the liquid inlet pipe, a fixed mounting frame is provided on the floating plate, and a lifting part for lifting sewage is provided on the fixed mounting frame;

[0007] The cleaning assembly is arranged in the oil collecting tank and is used to clean the oil inlet hole on the oil collecting tank to ensure the normal absorption efficiency of the floating oil;

[0008] A group of filtering components is arranged on the lifting part, and the filtering components are used to automatically collect and process the filtered foreign particles without stopping the normal operation of the lifting part.

[0009] Furthermore, the liquid inlet pipe is provided with a first electrically controlled valve at a position between the first connecting pipe and the ring pipe, the first connecting pipe is provided with a second electrically controlled valve, and the liquid inlet pipe is connected to the lifting part.

[0010] Furthermore, the lifting part includes: a group of second motors, a group of sewage lifting pumps, and a group of second connecting pipes. The output ends of a group of second motors are respectively installed with a group of sewage lifting pumps, and the ends of a group of sewage lifting pumps away from the second motors are respectively connected with a group of second connecting pipes. A fixed frame is fixedly connected to the fixed mounting frame, and a delivery pipe is installed on the fixed frame. The delivery pipe is respectively connected with a group of sewage lifting pumps.

[0011] Furthermore, the cleaning component includes:

[0012] A set of guide rails, a moving block, a ball brush, a set of sliders, a plurality of sets of limiting guide wheels and a first motor, wherein a set of guide rails are respectively fixedly installed in a set of sliding guide grooves, a clamping groove is formed on the inner ring of the guide rail, and a gear ring is coaxially fixedly connected to the inner side wall of the guide rail;

[0013] The two ends of the moving block are respectively fixedly connected with sliders, and the slider is provided with a limiting guide block. The moving block is slidably connected to the guide rail through the limiting guide block. Multiple limiting guide wheels are respectively arranged on a group of sliders, and multiple groups of limiting guide wheels are symmetrically arranged on the inner and outer sides of the guide rail. A gear is coaxially provided between one group of limiting guide wheels located on the inner ring of the guide rail, and the teeth of the gear are meshed with the gear ring. The first motor is provided with a guide wheel, and the guide wheel is limited in the slot. The output end of the first motor is coaxially fixed with the gear, and the limiting guide wheel is rotatably connected to the slider. The ball brush is arranged on one end of the moving block close to the oil collecting tank.

[0014] Furthermore, a filter is provided on the oil inlet.

[0015] Furthermore, the filtering component includes:

[0016] A mounting pipe, a recoil cylinder, a sewage pipe, a filter plate and a third electrically controlled valve, wherein both ends of the mounting pipe are connected to the second connecting pipe and the sewage lifting pump respectively, the recoil cylinder is arranged on the top of the outer wall of the mounting pipe, and the recoil cylinder is connected to the mounting pipe, the filter plate is arranged obliquely in the mounting pipe, and the opening of the recoil cylinder is directly opposite to the obliquely arranged filter plate;

[0017] The sewage pipe is arranged at the bottom of the installation pipe, and the sewage pipe is communicated with the installation pipe. The third electric-controlled valve is arranged on the sewage pipe.

[0018] Furthermore, a sewage collecting box is provided below the sewage pipe, and a through hole is provided on the fixed mounting frame for facilitating pulling out the sewage collecting box.

[0019] Furthermore, a control system is provided on the fixed mounting frame, and the control system is respectively connected to the first motor, the second motor, the first electrically controlled valve, the second electrically controlled valve and the third electrically controlled valve via electrical signals.

[0020] Furthermore, one end of the delivery pipe away from the sewage lifting pump is connected to an oil storage device and a sewage storage and treatment device.

[0021] Furthermore, a plurality of float balls are connected to the side wall of the floating plate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) In the process of collecting floating oil, the present application drives the gears between a group of limiting guide wheels below the first motor to rotate through the output end of the first motor, and at the same time, the first motor is slidably installed through the guide wheel and the slot, and then the teeth of the gear and the gear ring cooperate to realize the movement of the moving block in the sliding guide groove, so that the ball brush on the moving block cleans the oil inlet hole on the oil collecting tank, thereby preventing floating objects from clogging the oil inlet hole and reducing the efficiency of absorbing floating oil.

[0024] (2) In the present application, when the collected floating oil or sewage enters the installation pipe, the floating oil or sewage is filtered by the inclined filter plate, and the foreign particles are intercepted under the filter plate. At the same time, the floating oil or sewage in the backwash cylinder is reversely flushed from top to bottom, and the intercepted foreign particles are flushed into the sewage pipe. When a large amount of foreign particles accumulate in the sewage pipe, the third electric control valve is controlled to open by the control system. At this time, the accumulated foreign particles flow into the sewage collecting box along the sewage pipe. There is no need to stop the operation of the device, ensuring that the sewage lifting device continues to operate normally.

[0025] (3) This application uses a sensor system to monitor water quality changes in real time. When the oil level sensor detects that the floating oil concentration reaches a preset value, the control system will automatically issue an alarm and control the output end of the second motor to drive the sewage lift pump to work. At the same time, the data is uploaded to the management platform wirelessly to facilitate remote monitoring. The control system automatically adjusts the working status according to the data, reducing the need for manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1A schematic diagram of the overall structure of a floating disc type petrochemical wastewater lifting device provided in an embodiment of the present application;

[0027] Figure 2 A front view of a floating plate type petrochemical wastewater lifting device provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the internal structure of a floating plate of a floating plate type petrochemical wastewater lifting device provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the cleaning assembly and floating plate installation structure of a floating plate type petrochemical wastewater lifting device provided in an embodiment of the present application;

[0030] Figure 5 A schematic structural diagram of a cleaning component of a floating disc type petrochemical wastewater lifting device provided in an embodiment of the present application;

[0031] Figure 6 A schematic diagram of the structure of a filter assembly of a floating disc type petrochemical wastewater lifting device provided in an embodiment of the present application;

[0032] Figure 7 A schematic diagram of the internal structure of a filter assembly of a floating disc type petrochemical wastewater lifting device provided in an embodiment of the present application.

[0033] Description of the numbers in the figure:

[0034] 1. Floating plate; 11. Oil collecting tank; 111. Sliding guide groove; 12. Oil inlet hole; 13. Oil inlet pipe; 14. Ring pipe; 141. First electric control valve; 15. Liquid inlet pipe; 16. Water pumping pipe; 17. First connecting pipe; 171. Second electric control valve; 18. Float;

[0035] 2. Guide rail; 21. Ring gear; 22. Slot; 23. Moving block; 231. Ball brush; 24. Slider; 241. Position limiting guide block; 242. Position limiting guide wheel; 25. First motor; 251. Guide wheel;

[0036] 3. Fixed mounting frame; 31. Second motor; 32. Sewage lifting pump; 33. Second connecting pipe; 34. Mounting pipe; 341. Backflush cylinder; 342. Sewage pipe; 343. Filter plate; 35. Third electric control valve; 36. Fixed frame; 37. Delivery pipe; 38. Sewage collecting box. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 7 A floating plate type petrochemical wastewater lifting device includes a floating plate 1, a cleaning component and a set of filter components. An oil collecting tank 11 is provided on the side wall of the floating plate 1. The upper and lower ends of the oil collecting tank 11 are provided with sliding guide grooves 111. The oil collecting tank 11 is provided with multiple oil inlet holes 12. An annular pipe 14 is installed in the floating plate 1. The annular pipe 14 is provided with multiple oil inlet pipes 13. The annular pipe 14 is connected to the oil inlet holes 12 through the oil inlet pipes 13. The floating plate 1 is provided with a liquid inlet pipe 15 and a water pumping pipe 16. The water pumping pipe 16 is connected to the liquid inlet pipe 15 through the first connecting pipe 17, and the ring pipe 14 is connected to the liquid inlet pipe 15. The floating plate 1 is provided with a fixed mounting frame 3, and the fixed mounting frame 3 is provided with a lifting portion for lifting sewage; the fixed mounting frame 3 is provided with a control system, and the control system is electrically connected to the first motor 25, the second motor 31, the first electrically controlled valve 141, the second electrically controlled valve 171, and the third electrically controlled valve 35 respectively. The side wall of the floating plate 1 is connected to a plurality of floats 18;

[0039] By adopting the above technical solution, a water level sensor, a pH sensor, a turbidity sensor, an oil level sensor and a temperature sensor are respectively arranged on the float 1 to monitor multiple key indicators of the sewage in real time. In this process, the sensor system monitors the changes in water quality in real time. When the oil level sensor detects that the floating oil concentration reaches a preset value, the control system will automatically issue an alarm and control the output end of the second motor 31 to drive the sewage lifting pump 32 to work. At the same time, the data is uploaded to the management platform wirelessly to facilitate remote monitoring. The control system automatically adjusts the working status according to the data, reducing the need for manual intervention. By arranging multiple floats 18 under the float 1, the buoyancy of the float 1 is enhanced, and a flexible pipe design is adopted between the sewage lifting pump 32 and the connected pipe to reduce the impact of vibration on the pipe, ensuring that the sewage is efficiently and smoothly transported to the subsequent treatment equipment.

[0040] like Figure 1 and Figure 2As shown, the lifting part includes: a group of second motors 31, a group of sewage lifting pumps 32, and a group of second connecting pipes 33. The liquid inlet pipe 15 is provided with a first electrically controlled valve 141 at a position between the first connecting pipe 17 and the ring pipe 14. The first connecting pipe 17 is provided with a second electrically controlled valve 171. The liquid inlet pipe 15 is connected to the lifting part; the output ends of a group of second motors 31 are respectively installed with a group of sewage lifting pumps 32, and one end of a group of sewage lifting pumps 32 away from the second motor 31 is respectively connected with a group of second connecting pipes 33. A fixing frame 36 is fixedly connected to the fixed mounting frame 3, and a delivery pipe 37 is installed on the fixing frame 36. The delivery pipe 37 is respectively connected with a group of sewage lifting pumps 32, and the ends of the delivery pipes 37 away from the sewage lifting pumps 32 are respectively connected with an oil storage device and a sewage storage and treatment device.

[0041] The effect of this arrangement is that the floating oil floating on the sewage in a natural state enters the annular pipe 14 through the oil collecting tank 11 and the multiple oil inlet holes 12 on the floating plate 1. The control system controls the second electrically controlled valve 171 to be closed and the first electrically controlled valve 141 to be opened. The sewage lifting pump 32 is driven to work through the output end of the second motor 31 to suck the floating oil collected in the annular pipe 14 into the corresponding oil storage equipment. When the oil level sensor detects that the floating oil concentration drops to a preset value, the control system automatically issues an alarm, controls the first electrically controlled valve 141 to be closed, and the second electrically controlled valve 171 to be opened, and then the sewage is lifted into the delivery pipe 37 through the pumping pipe 16, and finally enters the sewage storage and treatment equipment.

[0042] like Figures 3 to 5 As shown, the cleaning assembly is disposed in the oil collecting tank 11 and is used to clean the oil inlet hole 12 on the oil collecting tank 11 to ensure normal absorption efficiency of floating oil. The cleaning assembly includes: a set of guide rails 2, a moving block 23, a ball brush 231, a set of sliders 24, multiple sets of limiting guide wheels 242, and a first motor 25. A set of guide rails 2 are respectively fixedly mounted in a set of sliding guide grooves 111. A clamping groove 22 is formed on the inner ring of the guide rail 2, and a gear ring 21 is coaxially fixedly connected to the inner side wall of the guide rail 2.

[0043] Both ends of the moving block 23 are fixedly connected to sliders 24, and a limiting guide block 241 is provided on the slider 24. The moving block 23 is slidably connected to the guide rail 2 through the limiting guide block 241. A plurality of limiting guide wheels 242 are respectively provided on a group of sliders 24, and a plurality of groups of limiting guide wheels 242 are symmetrically arranged on the inner and outer sides of the guide rail 2. A gear is coaxially provided between one group of limiting guide wheels 242 located on the inner ring of the guide rail 2, and the teeth of the gear are engaged with the ring gear 21. A guide wheel 251 is provided on the first motor 25, and the guide wheel 251 is limitedly set in the slot 22. The output end of the first motor 25 is coaxially fixedly connected to the gear, and the limiting guide wheel 242 is rotatably connected to the slider 24. A ball brush 231 is provided on one end of the moving block 23 close to the oil collecting tank 11, and a filter is provided on the oil inlet 12. The ball brush 231 contacts the filter on the oil inlet 12.

[0044] The effect of this arrangement is that during the process of collecting floating oil, the output end of the first motor 25 drives the gears between a group of limiting guide wheels 242 below the first motor 25 to rotate. At the same time, the first motor 25 is slidably installed through the guide wheel 251 and the card slot 22. Then, through the cooperation between the teeth of the gear and the ring gear 21, the moving block 23 is moved in the sliding guide groove 111, so that the ball brush 231 on the moving block 23 cleans the oil inlet hole 12 on the oil collecting tank 11, thereby preventing floating objects from clogging the oil inlet hole 12 and reducing the efficiency of absorbing floating oil.

[0045] like Figure 6 and Figure 7 As shown, a set of filter components is arranged on the lifting part, and the filter components are used to automatically collect and process filtered impurity particles without stopping the normal operation of the lifting part. The filter components include: a mounting pipe 34, a backwash cylinder 341, a sewage pipe 342, a filter plate 343 and a third electrically controlled valve 35. The two ends of the mounting pipe 34 are respectively connected to the second connecting pipe 33 and the sewage lifting pump 32. The backwash cylinder 341 is arranged at the top of the outer wall of the mounting pipe 34, and the backwash cylinder 341 is connected to the mounting pipe 34. The filter plate 343 is tilted in the mounting pipe 34, and the opening of the backwash cylinder 341 is directly opposite to the tilted filter plate 343.

[0046] A drain pipe 342 is provided at the bottom of the mounting pipe 34 and is in communication with the mounting pipe 34. A third electrically controlled valve 35 is provided on the drain pipe 342. A sewage collecting box 38 is provided below the drain pipe 342, and a through hole is provided on the fixed mounting frame 3 to facilitate pulling out the sewage collecting box 38.

[0047] The effect of this arrangement is that when the collected floating oil or sewage enters the installation pipe 34, the floating oil or sewage is filtered by the inclined filter plate 343, and the foreign particles are intercepted below the filter plate 343. At the same time, the floating oil or sewage in the backflush cylinder 341 is reversely flushed from top to bottom, and the intercepted foreign particles are flushed into the sewage pipe 342. When a large number of foreign particles accumulate in the sewage pipe 342, the control system controls the third electric control valve 35 to open. At this time, the accumulated foreign particles flow along the sewage pipe 342 into the sewage collecting box 38. There is no need to stop the operation of the device, ensuring that the sewage lifting device continues to operate normally.

[0048] From the above, we can see that the working principle of this application is as follows:

[0049] The float 1 floats with changes in the water level. By installing a water level sensor, a pH sensor, a turbidity sensor, an oil level sensor, and a temperature sensor on the float 1, multiple key indicators of the sewage are monitored in real time. During this process, the sensor system monitors changes in water quality in real time. When the oil level sensor detects that the floating oil concentration reaches a preset value, the control system automatically issues an alarm and controls the output end of the second motor 31 to drive the sewage lift pump 32. At the same time, the data is uploaded to the management platform via wireless means for remote monitoring. The control system automatically adjusts its working state based on the data, reducing the need for manual intervention.

[0050] Floating oil naturally floating on the sewage enters the annular pipe 14 through the oil collecting tank 11 and multiple oil inlet holes 12 on the floating plate 1. The control system controls the second electrically controlled valve 171 to close and the first electrically controlled valve 141 to open. The sewage lifting pump 32 is driven by the output end of the second motor 31 to work, and the floating oil collected in the annular pipe 14 is sucked into the corresponding oil storage equipment. When the oil level sensor detects that the floating oil concentration drops to a preset value, the control system automatically issues an alarm, controls the first electrically controlled valve 141 to close, and the second electrically controlled valve 171 to open. The sewage is then lifted into the delivery pipe 37 through the pumping pipe 16, and finally enters the sewage storage and treatment equipment.

[0051] During the process of collecting the floating oil, the output end of the first motor 25 drives the gears between a set of limiting guide wheels 242 below the first motor 25 to rotate. At the same time, the first motor 25 is slidably mounted through the guide wheel 251 and the clamping slot 22. The teeth of the gear cooperate with the gear ring 21 to realize the movement of the moving block 23 within the sliding guide slot 111, so that the ball brush 231 on the moving block 23 cleans the oil inlet hole 12 on the oil collecting tank 11, thereby preventing floating objects from clogging the oil inlet hole 12 and reducing the efficiency of absorbing the floating oil.

[0052] When the collected floating oil or sewage enters the installation pipe 34, the floating oil or sewage is filtered by the inclined filter plate 343, and the foreign particles are intercepted under the filter plate 343. At the same time, the floating oil or sewage in the backflush cylinder 341 is reversely flushed from top to bottom, and the intercepted foreign particles are washed down into the sewage pipe 342. When a large amount of foreign particles accumulate in the sewage pipe 342, the control system controls the third electric control valve 35 to open. At this time, the accumulated foreign particles flow along the sewage pipe 342 into the sewage collecting box 38. There is no need to stop the operation of the device, ensuring that the sewage lifting device continues to operate normally.

[0053] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A floating plate type petrochemical wastewater lifting device, characterized in that: include: A floating plate (1), a cleaning component and a group of filter components, wherein an oil collecting trough (11) is provided on the side wall of the floating plate (1), and sliding guide grooves (111) are provided at both upper and lower ends of the oil collecting trough (11), and a plurality of oil inlet holes (12) are opened on the oil collecting trough (11), an annular tube (14) is installed in the floating plate (1), and a plurality of oil inlet pipes (13) are provided on the annular tube (14), and the annular tube (14) is connected to the oil inlet holes (12) through the oil inlet pipes (13), and the floating plate (1) is provided with a liquid inlet pipe (15) and a water pumping pipe (16), and the water pumping pipe (16) is connected to the liquid inlet pipe (15) through a first connecting pipe (17), and the annular tube (14) is connected to the liquid inlet pipe (15), and the floating plate (1) is provided with a fixed mounting frame (3), and the fixed mounting frame (3) is provided with a lifting part for lifting sewage; The cleaning component is arranged in the oil collecting tank (11), and is used to clean the oil inlet hole (12) on the oil collecting tank (11) to ensure normal absorption efficiency of floating oil; The filter assembly is arranged on the lifting part, and is used to automatically collect and process the filtered foreign particles without stopping the normal operation of the lifting part; The cleaning assembly comprises: a group of guide rails (2), a moving block (23), a ball brush (231), a group of sliders (24), a plurality of groups of limiting guide wheels (242) and a first motor (25); a group of the guide rails (2) are respectively fixedly mounted in a group of sliding guide grooves (111); a clamping groove (22) is provided on the inner ring of the guide rail (2), and a gear ring (21) is coaxially fixedly connected to the inner side wall of the guide rail (2); The output end of the first motor (25) is coaxially fixedly connected to the gear, the limiting guide wheel (242) is rotatably connected to the slider (24), and the ball brush (231) is arranged on one end of the moving block (23) close to the oil collecting tank (11).

2. The floating disc type petrochemical wastewater lifting device according to claim 1, characterized in that: The liquid inlet pipe (15) is provided with a first electrically controlled valve (141) at a position between the first connecting pipe (17) and the ring pipe (14); the first connecting pipe (17) is provided with a second electrically controlled valve (171); and the liquid inlet pipe (15) is connected to the lifting portion.

3. The floating plate type petrochemical wastewater lifting device according to claim 1, characterized in that: The lifting part comprises: a group of second motors (31), a group of sewage lifting pumps (32), and a group of second connecting pipes (33); the output ends of a group of the second motors (31) are respectively installed with a group of sewage lifting pumps (32); one end of a group of the sewage lifting pumps (32) away from the second motors (31) is respectively connected with a group of second connecting pipes (33); a fixing frame (36) is fixedly connected to the fixing frame (3); a delivery pipe (37) is installed on the fixing frame (36); and the delivery pipe (37) is respectively connected with a group of sewage lifting pumps (32).

4. The floating plate type petrochemical wastewater lifting device according to claim 3, characterized in that: Both ends of the moving block (23) are fixedly connected to a slider (24), and a limiting guide block (241) is provided on the slider (24). The moving block (23) is slidably connected to the guide rail (2) through the limiting guide block (241). A plurality of limiting guide wheels (242) are respectively provided on a group of sliders (24), and a plurality of groups of limiting guide wheels (242) are respectively symmetrically provided on the inner and outer sides of the guide rail (2). A gear is coaxially provided between one group of limiting guide wheels (242) located on the inner ring of the guide rail (2), and the teeth of the gear are meshed with the gear ring (21). The first motor (25) is provided with a guide wheel (251), and the guide wheel (251) is limitedly provided in the slot (22).

5. The floating plate type petrochemical wastewater lifting device according to claim 4, characterized in that: A filter is provided on the oil inlet hole (12).

6. The floating plate type petrochemical wastewater lifting device according to claim 4, characterized in that: The filter assembly comprises: A mounting pipe (34), a recoil cylinder (341), a sewage pipe (342), a filter plate (343) and a third electrically controlled valve (35); the two ends of the mounting pipe (34) are respectively connected to the second connecting pipe (33) and the sewage lifting pump (32); the recoil cylinder (341) is arranged at the top of the outer wall of the mounting pipe (34), and the recoil cylinder (341) is connected to the mounting pipe (34); the filter plate (343) is tiltedly arranged in the mounting pipe (34), and the opening of the recoil cylinder (341) is directly opposite to the tilted filter plate (343); The sewage pipe (342) is arranged at the bottom of the installation pipe (34), and the sewage pipe (342) is connected to the installation pipe (34). The third electrically controlled valve (35) is arranged on the sewage pipe (342).

7. The floating plate type petrochemical wastewater lifting device according to claim 6, characterized in that: A sewage collecting box (38) is provided below the sewage discharge pipe (342), and a through hole is provided on the fixed mounting frame (3) for facilitating the pulling out of the sewage collecting box (38).

8. The floating plate type petrochemical wastewater lifting device according to claim 6, characterized in that: The fixed mounting frame (3) is provided with a control system, and the control system is respectively connected to the first motor (25), the second motor (31), the first electrically controlled valve (141), the second electrically controlled valve (171), and the third electrically controlled valve (35) via electrical signals.

9. The floating plate type petrochemical wastewater lifting device according to claim 3, characterized in that: One end of the delivery pipe (37) away from the sewage lifting pump (32) is connected to an oil storage device and a sewage storage and treatment device.

10. The floating plate type petrochemical wastewater lifting device according to claim 1, characterized in that: A plurality of floating balls (18) are connected to the side wall of the floating plate (1).

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