Filtering device for oil content of chimney top downpipe of asphalt ship

Abstract

The invention relates to the technical field of asphalt ships, in particular to a filtering device for oil content of a chimney top downpipe of an asphalt ship, which comprises a filtering mechanism mounted on a chimney and a separation assembly connected to the filtering mechanism, the separation assembly comprises a separation tank, and a circular opening is formed in the outer wall of the top of the separation tank. A tank cover is fixedly connected to the inner wall of the circular opening, a water inlet is formed in the outer wall of the top of the tank cover, and a water inlet pipe is fixedly connected to the inner wall of the water inlet. The sewage discharge pipe and the water discharge pipe are arranged on the separation assembly, soot and grease on the upper layer can be directly discharged conveniently through the sewage discharge pipe, water on the lower portion of the separation tank can be directly discharged conveniently through the water discharge pipe, the filtering mechanism is arranged at the front end of the separation assembly, and water discharged from a chimney can be preliminarily filtered conveniently through the filtering mechanism; and when the separation assembly discharges the grease and the cigarette ash, the environment pollution caused by the grease and the cigarette ash is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt ships, in particular to an oil filtering device for a downpipe on a chimney top of an asphalt ship. Background Art

[0002] Asphalt tankers are mainly used to carry heavy oils with flash points ≥ 60°, such as petroleum asphalt and tar. Currently, each ship is generally equipped with 2 to 4 independent cargo holds, which are mainly transported at sea. The manufacturing method is to first manufacture the hull, then divide the hull into 2 to 4 cabins, and manufacture 2 to 4 cubic independent cargo holds for storing heavy oils such as petroleum asphalt and tar. The independent cargo holds are wrapped with insulation layers, and finally the independent cargo holds are installed in each cabin.

[0003] Asphalt tankers discharge steam from their chimneys while moving. However, the drainage water at the top of the chimney contains soot and oil. Discharging it directly onto the deck or into the water will cause environmental pollution and easily lead to blockage of the drainage pipes. Summary of the invention

[0004] The purpose of the present invention is to solve or at least alleviate the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for filtering oil in a downpipe on a chimney top of an asphalt ship, comprising a filtering mechanism installed on the chimney and a separation component connected to the filtering mechanism, the separation component comprising a separation tank, and a circular opening is provided on the outer wall of the top of the separation tank, a tank cover is fixedly connected to the inner wall of the circular opening, a water inlet is provided on the outer wall of the top of the tank cover, and a water inlet pipe is fixedly connected to the inner wall of the water inlet, an oil discharge port is provided on the outer wall of the separation tank, and a sewage pipe is fixedly connected to the inner wall of the oil discharge port, a water outlet is provided on the outer wall of the separation tank, and a drain pipe of an L-shaped structure is fixedly connected to the inner wall of the water outlet, a cleaning port is provided on the outer wall of the bottom of the separation tank, and a control valve is fixedly connected to the inner wall of the cleaning port, the filtering mechanism comprises a filter box, and the filter box is connected to the water inlet pipe.

[0006] By adopting the above structure, the setting of the filtering mechanism facilitates the preliminary filtration of the sewage in the chimney, the setting of the separation component facilitates the separation of grease and water in the sewage, the setting of the water inlet pipe facilitates the introduction of water filtered by the filtering mechanism into the separation component, the setting of the sewage pipe facilitates the direct discharge of grease, and the setting of the drain pipe facilitates the discharge of clean water in the lower layer.

[0007] The top outer wall of the filter box is provided with a rectangular opening, and the inner wall of the rectangular opening is fixedly connected with a top cover; one side outer wall of the filter box is provided with a water inlet, and the inner wall of the water inlet is fixedly connected with a drain pipe.

[0008] With the above structure, the drain pipe is arranged to conveniently introduce the falling water in the chimney into the filter box.

[0009] The inner walls on both sides of the filter box are fixedly connected with the same inclined partition, and a water outlet is opened at the center line of the outer wall at the top of the partition, and the inner wall of the water outlet is rotatably connected with a filter sleeve. An inspection port is opened on the outer wall of one side of the filter box, and the inner wall of the inspection port is rotatably connected with an inspection door.

[0010] With the above structure, filtered impurities can be easily introduced and discharged through the inclined partition, and the provision of the inspection door facilitates maintenance of the structure in the filter box.

[0011] The outer wall of the filter sleeve is provided with a plurality of arc-shaped openings which are distributed at equal distances, and the inner wall of the arc-shaped opening is fixedly connected with a filter net.

[0012] With the above structure, the sewage can be initially filtered through the filter net on the filter sleeve.

[0013] A cleaning component in contact with the filter sleeve is installed on one inner wall of the filter box, a sewage outlet is opened on one outer wall of the filter box, and a discharge pipe is fixedly connected to the inner wall of the sewage outlet.

[0014] With the above structure, the filter screen on the filter sleeve can be cleaned conveniently through the provision of the cleaning component, and the provision of the discharge pipe can facilitate the cleaning of filtered impurities.

[0015] The top outer wall of the top cover is rotatably connected to a pulley 1, the top outer wall of the top cover is fixedly connected to an L-shaped seat, and a servo motor is fixedly connected to the L-shaped seat, and a pulley 2 is fixedly connected to the output shaft of the servo motor, and the same belt is connected between the pulley 2 and the pulley 1.

[0016] With the above structure, the servo motor is conveniently arranged to cooperate with the belt to directly drive the filter sleeve to rotate.

[0017] The inner wall of the filter box on one side close to the discharge pipe is slidably connected with a sliding plate, and the outer wall of the top cover is equipped with two driving components passing through the top cover. The driving component includes a driving tube fixedly connected to the top cover, and the inner wall of the driving tube is slidably connected with a driving column, and one end of the driving column is fixedly connected to the sliding plate.

[0018] With the above structure, the sliding plate can be easily driven to rise and fall by setting the driving assembly, and the filtered impurities can be directly cleaned out when the sliding plate rises.

[0019] The cleaning assembly includes a cleaning box fixedly connected to the inner wall of the filter box, and the inner wall of the cleaning box is slidably connected to a sliding seat, the outer wall of the sliding seat is fixedly connected to a cleaning brush, and the cleaning brush is in contact with the outer wall of the filter sleeve, the inner walls on both sides of the cleaning box are rotatably connected to the same bidirectional screw, and the outer wall of the bidirectional screw is screwed on two symmetrically arranged threaded sleeves, the outer walls of the two threaded sleeves are rotatably connected to support plates, and one end of the two support plates is rotatably connected to the sliding seat, the inner wall of the cleaning box is fixedly connected to a servo motor, and the output shaft of the servo motor is fixedly connected to gear two, and the midpoint of the bidirectional screw is fixedly connected to gear one, and gear one and gear two are meshed with each other.

[0020] By adopting the above structure, the cleaning brush is in contact with the filter screen, so that impurities adhered to the filter screen can be cleaned conveniently. When the cleaning brush is worn, the position of the cleaning brush needs to be adjusted. During adjustment, the servo motor starts and drives gear one through gear two to drive the bidirectional screw to rotate. When the bidirectional screw rotates, the two threaded sleeves are driven to move toward or away from each other. When the two threaded sleeves move toward each other, the cleaning brush is directly pushed close to the filter sleeve through the support plate, and vice versa.

[0021] The inner wall of the driving tube is fixedly connected with a reduction motor, and the output shaft of the reduction motor is fixedly connected with a screw rod, and the driving column is screwed on the outer wall of the screw rod.

[0022] With the above structure, the screw is driven to rotate by the reduction motor, and the screw directly drives the driving column to move when rotating, so that the position of the sliding plate can be adjusted conveniently, and the filtered impurities can be cleaned out conveniently when the sliding plate is raised.

[0023] The inner wall of the driving tube is fixedly connected with an electric telescopic rod, and the output shaft of the electric telescopic rod is fixedly connected to the driving column.

[0024] With the above structure, the movement of the sliding plate is adjusted by directly pulling the driving column through the electric telescopic rod, and the filtered impurities can be easily cleaned out when the sliding plate is raised.

[0025] In a possible implementation, the.

[0026] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides a sewage pipe and a drainage pipe on the separation component. The sewage pipe is convenient for directly discharging the ash and grease on the upper layer. The drainage pipe is convenient for directly discharging the water at the bottom of the separation tank. A filtering mechanism is provided at the front end of the separation component. The filtering mechanism is convenient for preliminarily filtering the water discharged from the chimney, thereby preventing large particles of impurities in the water from clogging the pipe. When the separation component discharges grease and ash, the grease and ash are prevented from causing environmental pollution. (2) The present invention uses a filter screen on the filter sleeve in the filter assembly to filter out large particles of impurities in the water, thereby preventing large impurities from entering the separation tank. At the same time, the servo motor cooperates with the belt to directly drive the filter sleeve to rotate, and cooperates with the cleaning assembly to clean the surface of the filter screen, thereby preventing impurities from clogging the filter screen. (3) The present invention facilitates cleaning of impurities adhering to the filter screen by bringing the cleaning brush in the cleaning assembly into contact with the filter screen. The servo motor in the cleaning assembly drives the bidirectional screw to rotate, thereby facilitating driving the threaded sleeve to drive the support plate to push the sliding seat to move, thereby facilitating adjustment of the spacing between the cleaning brush and the filter screen. The arrangement of the driving assembly facilitates the lifting and lowering of the sliding plate, and when the sliding plate is opened, it is convenient to clean out the filtered impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the separation component structure of the present invention; Figure 3 It is a schematic diagram of the structure of the filtering mechanism of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the filter box of the present invention; Figure 5 It is a schematic diagram of the internal structure of the filter box of the present invention; Figure 6 It is a schematic diagram of the partition structure of the present invention; Figure 7 It is a schematic diagram of the structure of the cleaning component of the present invention; Figure 8 This is a schematic diagram of the structure of a driving component in accordance with the first embodiment of the present invention; Fig. 9 This is a schematic diagram of the structure of a drive assembly according to Embodiment 2 of the present invention.

[0028] In the figure: 1. Filter mechanism; 2. Separation assembly; 3. Separation tank; 4. Tank cover; 5. Water inlet pipe; 6. Drain pipe; 7. Control valve; 8. Drain pipe; 9. Filter box; 10. Top cover; 11. Inspection door; 12. Discharge pipe; 13. Drive assembly; 14. Pulley 1; 15. Belt; 16. Servo motor; 17. Drain pipe; 18. Partition; 19. Filter sleeve; 20. Cleaning assembly; 21. Sliding plate; 22. Filter screen; 23. Cleaning box; 24. Sliding seat; 25. Cleaning brush; 26. Support plate; 27. Bidirectional screw; 28. Threaded sleeve; 29. ​​Gear 1; 30. Gear 2; 31. Servo motor; 32. Drive pipe; 33. Drive column; 34. Reducer motor; 35. Screw; 36. Electric telescopic rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1 See also Figure 1-8 A device for filtering oil in a chimney downpipe of an asphalt ship, comprising a filtering mechanism 1 installed on the chimney and a separation assembly 2 connected to the filtering mechanism 1, wherein the separation assembly 2 comprises a separation tank 3, and a circular opening is formed on the top outer wall of the separation tank 3, a tank cover 4 is fixedly connected to the inner wall of the circular opening, a water inlet is formed on the top outer wall of the tank cover 4, a water inlet is fixedly connected to the inner wall of the water inlet, an oil discharge port is formed on the outer wall of the separation tank 3, a sewage discharge pipe 6 is fixedly connected to the inner wall of the oil discharge port, a water outlet is formed on the outer wall of the separation tank 3, and the inner wall of the water outlet is fixedly connected to There is an L-shaped drain pipe 8, a cleaning port is provided on the outer wall at the bottom of the separation tank 3, and a control valve 7 is fixedly connected to the inner wall of the cleaning port, the filtering mechanism 1 includes a filter box 9, and the filter box 9 is connected to the water inlet pipe 5. The setting of the filtering mechanism 1 facilitates the preliminary filtration of the sewage in the chimney, the setting of the separation component 2 facilitates the separation of grease and water in the sewage, the setting of the water inlet pipe 5 facilitates the introduction of water filtered by the filtering mechanism 1 into the separation component 2, the setting of the sewage pipe 6 facilitates the direct discharge of grease, and the setting of the drain pipe 8 facilitates the discharge of clean water from the lower layer.

[0031] For details, please refer to Figure 3 A rectangular opening is provided on the top outer wall of the filter box 9, and a top cover 10 is fixedly connected to the inner wall of the rectangular opening. A water inlet is provided on one side outer wall of the filter box 9, and a drain pipe 17 is fixedly connected to the inner wall of the water inlet. The drain pipe 17 is provided to facilitate the introduction of falling water in the chimney into the filter box 9.

[0032] For details, please refer to Figure 4-6 The inner walls on both sides of the filter box 9 are fixedly connected with the same inclined partition 18, and a water outlet is opened at the center line of the outer wall at the top of the partition 18, and the inner wall of the water outlet is rotatably connected with a filter sleeve 19. An inspection port is opened on the outer wall of one side of the filter box 9, and the inner wall of the inspection port is rotatably connected with an inspection door 11. The filtered impurities can be easily imported and exported through the inclined partition 18. The setting of the inspection door 11 facilitates the maintenance of the structure in the filter box 9.

[0033] For details, please refer to Figure 5-6 The outer wall of the filter sleeve 19 is provided with a plurality of equally spaced arc-shaped openings, and the inner wall of the arc-shaped opening is fixedly connected with a filter net 22, so that the sewage can be initially filtered through the filter net 22 on the filter sleeve 19.

[0034] For details, please refer to Figure 4-6 A cleaning component 20 in contact with the filter sleeve 19 is installed on the inner wall of one side of the filter box 9, and a sewage outlet is opened on the outer wall of one side of the filter box 9, and a discharge pipe 12 is fixedly connected to the inner wall of the sewage outlet. The setting of the cleaning component 20 facilitates the cleaning of the filter screen 22 on the filter sleeve 19, and the setting of the discharge pipe 12 facilitates the cleaning of the filtered impurities.

[0035] For details, please refer to Figure 3-4 The top outer wall of the top cover 10 is rotatably connected with a pulley 14, the top outer wall of the top cover 10 is fixedly connected with an L-shaped seat, and a servo motor 16 is fixedly connected to the L-shaped seat, and a pulley 2 is fixedly connected to the output shaft of the servo motor 16, and the same belt 15 is connected between the pulley 2 and the pulley 14. The setting of the servo motor 16 facilitates the cooperation with the belt 15 to directly drive the filter sleeve 19 to rotate.

[0036] For details, please refer to Figure 5 A sliding plate 21 is slidably connected to the inner wall of one side of the filter box 9 close to the discharge pipe 12, and two driving components 13 penetrating the top cover 10 are installed on the top outer wall of the top cover 10. The driving component 13 includes a driving tube 32 fixedly connected to the top cover 10, and a driving column 33 is slidably connected to the inner wall of the driving tube 32, and one end of the driving column 33 is fixedly connected to the sliding plate 21. The setting of the driving component 13 is convenient for driving the sliding plate 21 to rise and fall, and when the sliding plate 21 is raised, it is convenient to directly clean out the filtered impurities.

[0037] For details, please refer to Figure 7The cleaning assembly 20 includes a cleaning box 23 fixedly connected to the inner wall of the filter box 9, and the inner wall of the cleaning box 23 is slidably connected to a sliding seat 24, and the outer wall of the sliding seat 24 is fixedly connected to a cleaning brush 25, and the cleaning brush 25 is in contact with the outer wall of the filter sleeve 19, and the inner walls of both sides of the cleaning box 23 are rotatably connected to the same bidirectional screw 27, and the outer wall of the bidirectional screw 27 is screwed with two symmetrically arranged threaded sleeves 28, and the outer walls of the two threaded sleeves 28 are rotatably connected to support plates 26, and one end of the two support plates 26 is rotatably connected to the sliding seat 24, and the inner wall of the cleaning box 23 is fixedly connected to a servo motor 31, and the output shaft of the servo motor 31 is fixedly connected to the servo motor 31. It is connected to gear 2 30, and gear 1 29 is fixedly connected to the midpoint of the bidirectional screw 27, and gear 1 29 and gear 2 30 are meshed with each other, and the cleaning brush 25 is in contact with the filter screen 22, so as to facilitate the cleaning of impurities adhering to the filter screen 22. When the cleaning brush 25 is worn, the position of the cleaning brush 25 needs to be adjusted. During the adjustment, the servo motor 31 starts to drive gear 1 29 through gear 2 30 to drive the bidirectional screw 27 to rotate. When the bidirectional screw 27 rotates, it drives the two threaded sleeves 28 to move toward or away from each other. When the two threaded sleeves 28 move toward each other, the cleaning brush 25 is directly pushed close to the filter sleeve 19 through the support plate 26, and vice versa.

[0038] For details, please refer to Figure 8 The inner wall of the driving tube 32 is fixedly connected with a reduction motor 34, and a screw 35 is fixedly connected to the output shaft of the reduction motor 34. The driving column 33 is screwed on the outer wall of the screw 35. The screw 35 is driven to rotate by the reduction motor 34. When the screw 35 rotates, it directly drives the driving column 33 to move, thereby facilitating the adjustment of the position of the sliding plate 21. When the sliding plate 21 is raised, it is convenient to clean out the filtered impurities.

[0039] Embodiment 2 Based on Example 1, this example introduces a specific structure of a driving component 13 in an oil filtering device for a chimney top downpipe of an asphalt ship. Fig. 9 As shown, the inner wall of the driving tube 32 is fixedly connected with an electric telescopic rod 36, and the output shaft of the electric telescopic rod 36 is fixedly connected to the driving column 33. The electric telescopic rod 36 directly pulls the driving column 33 to move to adjust the movement of the sliding plate 21. When the sliding plate 21 is raised, it is convenient to clean out the filtered impurities.

[0040] Working principle: When in use, the water discharged from the chimney enters the filter box 9 through the drain pipe 17, is filtered through the filter screen 22 on the filter sleeve 19 in the filter box 9, and enters the separation tank 3 through the water inlet pipe 5. The sewage is stored in the separation tank 3. Since the soot and grease float on the upper layer of the water, it is convenient to directly discharge the grease through the sewage pipe 6. The setting of the drainage pipe 8 is convenient for directly discharging the water in the lower layer, so as to facilitate the discharge of the soot and grease in the sewage; After filtering for a period of time, the filter screen 22 on the filter sleeve 19 needs to be cleaned. During cleaning, the servo motor 16 drives the filter sleeve 19 to rotate through the belt 15. When the filter sleeve 19 rotates, the cleaning brush 25 cleans the impurities adhered to the surface of the filter sleeve 19. When the position of the cleaning brush 25 needs to be adjusted, the servo motor 31 is servoed. When the servo motor 31 is started, the bidirectional screw 27 is directly driven to rotate. When the bidirectional screw 27 rotates, the two threaded sleeves 28 are driven to move toward or away from each other. When the two threaded sleeves 28 move toward each other, the cleaning brush 25 is directly pushed to approach the filter sleeve 19 through the support plate 26, and vice versa, away from the filter sleeve 19. When cleaning the filtered impurities, the reduction motor 34 is started to directly drive the screw 35 to rotate. When the screw 35 rotates, the driving column 33 is directly driven to move. When the driving column 33 moves, the sliding plate 21 is directly driven to move. When the sliding plate 21 moves, the impurities can be directly discharged through the discharge pipe 12, or the driving column 33 is directly pulled to move by the electric telescopic rod 36 to adjust the movement of the sliding plate 21.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for filtering oil in a chimney downpipe of an asphalt ship, comprising a filtering mechanism (1) mounted on the chimney and a separation assembly (2) connected to the filtering mechanism (1), characterized in that: The separation assembly (2) comprises a separation tank (3), and a circular opening is formed on the top outer wall of the separation tank (3), and a tank cover (4) is fixedly connected to the inner wall of the circular opening; a water inlet is formed on the top outer wall of the tank cover (4), and a water inlet pipe (5) is fixedly connected to the inner wall of the water inlet; an oil discharge port is formed on the outer wall of the separation tank (3), and a sewage discharge pipe (6) is fixedly connected to the inner wall of the oil discharge port; a water outlet is formed on the outer wall of the separation tank (3), and a drain pipe (8) of an L-shaped structure is fixedly connected to the inner wall of the water outlet; a cleaning port is formed on the bottom outer wall of the separation tank (3), and a control valve (7) is fixedly connected to the inner wall of the cleaning port; and the filtering mechanism (1) comprises a filter box (9), and the filter box (9) is connected to the water inlet pipe (5).

2. The oil filtering device for the chimney top downpipe of an asphalt ship according to claim 1 is characterized by: The top outer wall of the filter box (9) is provided with a rectangular opening, and the inner wall of the rectangular opening is fixedly connected to a top cover (10); one side outer wall of the filter box (9) is provided with a water inlet, and the inner wall of the water inlet is fixedly connected to a drain pipe (17).

3. The oil filtering device for the chimney top downpipe of an asphalt ship according to claim 2 is characterized by: The inner walls of both sides of the filter box (9) are fixedly connected to the same inclined partition (18), and a water outlet is provided at the center line of the outer wall at the top of the partition (18), and the inner wall of the water outlet is rotatably connected to a filter sleeve (19), and an inspection port is provided on the outer wall of one side of the filter box (9), and the inner wall of the inspection port is rotatably connected to an inspection door (11).

4. The oil filtering device for the chimney top downpipe of an asphalt ship according to claim 3 is characterized by: The outer wall of the filter sleeve (19) is provided with a plurality of arc-shaped openings distributed at equal distances, and the inner walls of the arc-shaped openings are fixedly connected to a filter screen (22).

5. The oil filtering device for the chimney top downpipe of an asphalt ship according to claim 4, characterized in that: A cleaning assembly (20) in contact with the filter sleeve (19) is installed on one inner wall of the filter box (9), a sewage outlet is provided on one outer wall of the filter box (9), and a discharge pipe (12) is fixedly connected to the inner wall of the sewage outlet.

6. The oil filtering device for the chimney top downpipe of an asphalt ship according to claim 5, characterized in that: The top outer wall of the top cover (10) is rotatably connected to a pulley 1 (14), the top outer wall of the top cover (10) is fixedly connected to an L-shaped seat, and a servo motor (16) is fixedly connected to the L-shaped seat, the output shaft of the servo motor (16) is fixedly connected to a pulley 2, and the same belt (15) is connected between the pulley 2 and the pulley 1 (14).

7. The oil filtering device for the chimney top downpipe of an asphalt ship according to claim 6, characterized in that: A sliding plate (21) is slidably connected to the inner wall of one side of the filter box (9) close to the discharge pipe (12), and two drive components (13) penetrating the top cover (10) are installed on the top outer wall of the top cover (10), and the drive component (13) includes a drive tube (32) fixedly connected to the top cover (10), and a drive column (33) is slidably connected to the inner wall of the drive tube (32), and one end of the drive column (33) is fixedly connected to the sliding plate (21).

8. The oil filtering device for the chimney top downpipe of an asphalt ship according to claim 7, characterized in that: The cleaning assembly (20) comprises a cleaning box (23) fixedly connected to the inner wall of the filter box (9), and the inner wall of the cleaning box (23) is slidably connected to a sliding seat (24), the outer wall of the sliding seat (24) is fixedly connected to a cleaning brush (25), and the cleaning brush (25) is in contact with the outer wall of the filter sleeve (19), the inner walls on both sides of the cleaning box (23) are rotatably connected to the same bidirectional screw (27), and the outer wall of the bidirectional screw (27) is screwed to two symmetrically arranged threaded sleeves (28), the outer walls of the two threaded sleeves (28) are both rotatably connected to support plates (26), and one end of the two support plates (26) is rotatably connected to the sliding seat (24), the inner wall of the cleaning box (23) is fixedly connected to a servo motor (31), and the output shaft of the servo motor (31) is fixedly connected to a gear 2 (30), and the midpoint of the bidirectional screw (27) is fixedly connected to a gear 1 (29), and the gear 1 (29) and the gear 2 (30) are meshed with each other.

9. The oil filtering device for the chimney top downpipe of an asphalt ship according to claim 8, characterized in that: The inner wall of the driving tube (32) is fixedly connected to a reduction motor (34), and the output shaft of the reduction motor (34) is fixedly connected to a screw rod (35), and the driving column (33) is screwed onto the outer wall of the screw rod (35).

10. The oil filtering device for the chimney top downpipe of an asphalt ship according to claim 8, characterized in that: An electric telescopic rod (36) is fixedly connected to the inner wall of the driving tube (32), and an output shaft of the electric telescopic rod (36) is fixedly connected to the driving column (33).

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