Floating disc type petrochemical engineering sewage lifting device

Abstract

The invention discloses a floating disc type petrochemical engineering sewage lifting device, and relates to the field of petrochemical engineering sewage treatment equipment.The floating disc type petrochemical engineering sewage lifting device comprises a floating disc, a cleaning assembly and a filtering assembly, an oil collecting groove is formed in the side wall of the floating disc, sliding guide grooves are formed in the upper end and the lower end of the oil collecting groove, and a plurality of oil inlet holes are formed in the oil collecting groove; an annular pipe is installed in the floating disc, a plurality of oil inlet pipes are arranged on the annular pipe, the annular pipe is communicated with the oil inlet holes through the oil inlet pipes, a liquid inlet pipe and a water pumping pipe are arranged on the floating disc, the water pumping pipe is communicated with the liquid inlet pipe through a first communicating pipe, and the annular pipe is communicated with the liquid inlet pipe; according to the floating oil collecting device, in the floating oil collecting process, through cooperation of teeth of the gear and the gear ring, the moving block moves in the sliding guide groove, the ball brush on the moving block cleans the oil inlet hole in the oil collecting groove, and the situation that floating objects block the oil inlet hole, and consequently the floating oil absorbing efficiency is reduced is avoided.

Description

Technical Field

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

[0002] The petrochemical industry generates a large amount of sewage during production and processing. The sewage contains oil, heavy metals and other harmful substances. If not treated in time, it may cause serious pollution to the environment. The traditional sewage lifting device effectively eliminates the waste gas layer between sewage and air by setting a floating plate on the water surface of the sewage lifting device. This design can not only adjust the volume of the oily sewage lifting device, but also prevent the exhaust gas emitted due to the breathing effect caused by liquid level fluctuations, thereby reducing pollution to the environment; the core components of the device include a grille pool, a connecting pipe, a sewage storage device, a floating plate and a sewage lifting pump. The grille pool is used to initially filter solid matter in the sewage, and the connecting pipe is responsible for connecting the grille pool with the sewage storage device;

[0003] However, in the prior art, when dealing with 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 dealing with sediment in sewage, traditional devices usually use a basket-type filter to filter the sediment in sewage. When the sediment in the basket 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 clogging by 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 sewage lifting device, comprising a floating plate, a cleaning component and a group of filtering components, an oil collecting groove is arranged on the side wall of the floating plate, sliding guide grooves are arranged at the upper and lower ends of the oil collecting groove, a plurality of oil inlet holes are opened on the oil collecting groove, an annular tube is installed in the floating plate, a plurality of oil inlet pipes are arranged on the annular tube, the annular tube is connected with the oil inlet holes through the oil inlet pipe, a liquid inlet pipe and a water pumping pipe are arranged on the floating plate, the water pumping pipe is connected with the liquid inlet pipe through a first connecting pipe, the annular tube is connected with the liquid inlet pipe, a fixed mounting frame is arranged on the floating plate, and a lifting part for lifting sewage is arranged on the fixed mounting frame;

[0007] The cleaning component 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 the filter components are arranged on the lifting part, and the filter components are used to automatically collect and process the filtered foreign particles without stopping the normal operation of the lifting part.

[0009] Furthermore, a first electrically controlled valve is provided on the liquid inlet pipe at a position between the first connecting pipe and the ring pipe, a second electrically controlled valve is provided on the first connecting pipe, 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 one end of a group of sewage lifting pumps away from the second motors is 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 comprises:

[0012] A group of guide rails, a moving block, a ball brush, a group of sliders, a plurality of groups of limit guide wheels and a first motor, wherein a group of the guide rails are respectively fixedly installed in a group of sliding guide grooves, a clamping groove is provided in 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 arranged between one group of limiting guide wheels located on the inner circle of the guide rail, and the teeth of the gear are meshed with the gear ring. A guide wheel is provided on the first motor, and the guide wheel is limitedly arranged in a slot. The output end of the first motor is coaxially fixedly connected 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 screen is provided on the oil inlet.

[0015] Furthermore, the filtering component comprises:

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

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

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

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

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

[0021] Furthermore, a plurality of floating 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 a group of gears between the 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 absorption efficiency of the 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 recoil cylinder is reversely flushed from top to bottom, and the intercepted foreign particles are washed into the sewage pipe. When a large number of foreign particles are accumulated in the sewage pipe, the third electric control valve is controlled to open through 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, thereby ensuring that the sewage lifting device continues to operate normally.

[0025] (3) The present 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 sound 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 a cleaning component and a 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 diagram of the cleaning component structure 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. Floating ball;

[0035] 2. Guide rail; 21. Gear ring; 22. Slot; 23. Moving block; 231. Ball brush; 24. Sliding block; 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. Recoil 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 technical solutions in the embodiments of the present invention will be clearly and completely described below 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, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention 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 comprises a floating plate 1, a cleaning component and a group of filtering components. An oil collecting tank 11 is arranged 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 a plurality of oil inlet holes 12. An annular tube 14 is installed in the floating plate 1. The annular tube 14 is provided with a plurality of oil inlet pipes 13. The annular tube 14 is connected with the oil inlet hole 12 through the oil inlet pipe 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 part for lifting sewage; 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 electric control valve 141, the second electric control valve 171 and the third electric control valve 35 by electrical signals, and the side wall of the floating plate 1 is connected to a plurality of floating balls 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 floating plate 1 to monitor multiple key indicators of 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 state according to the data, reducing the need for manual intervention; by arranging multiple floats 18 under the floating plate 1, the buoyancy of the floating plate 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 one end of the delivery pipe 37 away from the sewage lifting pump 32 is respectively connected with an oil storage device and a sewage storage and treatment device;

[0041] The effect of such 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, and the control system controls the second electrically controlled valve 171 to be closed and the first electrically controlled valve 141 to be opened, and 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 is reduced 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 arranged in the oil collecting tank 11, and the cleaning assembly is used to clean the oil inlet hole 12 on the oil collecting tank 11 to ensure the normal absorption efficiency of the floating oil; the cleaning assembly includes: 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 guide rails 2 are respectively fixedly installed in a group of sliding guide grooves 111, a card slot 22 is opened in 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 with 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 arranged 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 arranged between one group of limiting guide wheels 242 located on the inner circle of the guide rail 2, and the teeth of the gear are meshed with the gear ring 21. A guide wheel 251 is provided on the first motor 25, and the guide wheel 251 is limitedly arranged in the card slot 22. The output end of the first motor 25 is coaxially fixedly connected with the gear, and the limiting guide wheel 242 is rotatably connected with the slider 24. A ball brush 231 is arranged 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 such arrangement is that in 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, and at the same time, the first motor 25 is slidably installed through the guide wheel 251 and the card slot 22, and then the teeth of the gear cooperate with the gear ring 21 to realize the movement of the moving block 23 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, so as to avoid floating objects blocking the oil inlet hole 12 and reducing the absorption efficiency of the floating oil.

[0045] like Figure 6 and Figure 7 As shown, a group of filter components are arranged on the lifting part, and the filter components are used to automatically collect and process the filtered impurity particles without stopping the normal operation of the lifting part. The filter components include: a mounting pipe 34, a recoil cylinder 341, a sewage pipe 342, a filter plate 343 and a third electric control 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 on 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 tilted in the mounting pipe 34, and the opening of the recoil cylinder 341 is directly opposite to the tilted filter plate 343.

[0046] The sewage pipe 342 is arranged at the bottom of the installation pipe 34, and the sewage pipe 342 is connected with the installation pipe 34, and the third electric control valve 35 is arranged on the sewage pipe 342; a sewage collecting box 38 is arranged below the sewage pipe 342, and a through hole is opened on the fixed installation frame 3 to facilitate pulling out the sewage collecting box 38;

[0047] The effect of such 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 under the filter plate 343. At the same time, the floating oil or sewage in the recoil 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 number of foreign particles are accumulated in the sewage pipe 342, the third electric control valve 35 is controlled to open by the control system. 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, thereby 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 floating plate 1 floats along with the change of water level. By respectively setting a water level sensor, a pH sensor, a turbidity sensor, an oil level sensor and a temperature sensor on the floating plate 1, multiple key indicators of sewage are monitored in real time. In this process, the sensor system monitors the change of 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 by wireless means for remote monitoring. The control system automatically adjusts the working state according to the data, reducing the need for manual intervention.

[0050] 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 electric control valve 171 to be closed and the first electric control 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 volume sensor detects that the floating oil concentration is reduced to a preset value, the control system automatically issues an alarm, controls the first electric control valve 141 to be closed, and the second electric control 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;

[0051] In the process of collecting the 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, and at the same time, the first motor 25 is slidably installed through the guide wheel 251 and the card slot 22, and then the teeth of the gear cooperate with the gear ring 21 to realize the movement of the moving block 23 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, so as to avoid the floating objects blocking the oil inlet hole 12 and reducing the absorption efficiency of 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 recoil cylinder 341 is reversely flushed from top to bottom, and the intercepted foreign particles are washed into the sewage pipe 342. When a large number of foreign particles are accumulated in the sewage pipe 342, the third electric control valve 35 is controlled to open by the control system. At this time, the accumulated foreign particles follow 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 is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope 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 filtering components, wherein an oil collecting groove (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 groove (11), and a plurality of oil inlet holes (12) are opened on the oil collecting groove (11), and 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 with 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 suction pipe (16), and the water suction pipe (16) is connected with the liquid inlet pipe (15) through a first connecting pipe (17), and the annular tube (14) is connected with 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 the filter assembly is used for automatically collecting and processing the filtered foreign particles without stopping the normal operation of the lifting part.

2. A floating plate 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 part.

3. The floating plate type petrochemical wastewater lifting device according to claim 1 is 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 fixed frame (36) is fixedly connected to the fixed mounting frame (3); a delivery pipe (37) is installed on the fixed frame (36); and the delivery pipe (37) is respectively connected with a group of sewage lifting pumps (32).

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

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

6. A 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 obliquely arranged in the mounting pipe (34), and the opening of the recoil cylinder (341) is directly opposite to the obliquely arranged filter plate (343); The sewage discharge pipe (342) is arranged at the bottom of the installation pipe (34), and the sewage discharge pipe (342) is communicated with the installation pipe (34), and the third electric control valve (35) is arranged on the sewage discharge pipe (342).

7. A 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 pulling out 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 electric control valve (141), the second electric control valve (171), and the third electric control 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 respectively 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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