A cleaning device for hot-rolled strip after laminar flow cooling

Abstract

This utility model discloses a cleaning device for hot-rolled strip steel after laminar flow cooling, including a frame, multiple conveyor rollers, and a transmission mechanism. Upper support frames are installed on both sides of the upper part of the frame. Multiple sets of downward-facing upper cleaners are arranged at equal intervals above the conveyor rollers. Upper connecting frames are symmetrically installed at both ends of each upper cleaner. An upper lifting mechanism connected to the upper connecting frames is installed on the outer side of the upper support frames. Lower support frames are installed on both sides below the frame. Multiple sets of upward-facing lower cleaners are arranged at equal intervals below the conveyor rollers. Lower connecting frames are symmetrically installed at both ends of each lower cleaner. A lower lifting mechanism connected to the lower connecting frames is installed on the outer side of the lower support frames. The air inlet pipes at the top of the upper cleaners and the bottom of the lower cleaners are respectively connected to compressed air storage tanks via air inlet pipes. This utility model can thoroughly dry the residual moisture on the surface of hot-rolled steel strip, with a faster cleaning speed and better cleaning effect.

Description

Technical Field

[0001] This utility model belongs to the field of steel rolling production and processing technology, specifically relating to a cleaning device for hot-rolled strip steel after laminar flow cooling. Background Technology

[0002] Laminar flow cooling is a process technology used to control cooling on hot-rolled steel strip production lines. It achieves uniform and rapid cooling by spraying water in a layered manner onto the steel strip surface using low-pressure, high-volume water. Its core principle is to break through the vapor film on the steel strip surface using laminar water flow, achieving highly efficient cooling. Laminar flow cooling has the advantages of uniform cooling and high cooling efficiency. After being cooled by the laminar flow device, residual moisture remains on the surface of the hot-rolled steel strip. If this moisture is left on the surface and directly coiled or processed, it can lead to surface oxidation or corrosion. Cleaning can promptly remove this residual moisture and maintain surface cleanliness. Currently, cleaning devices for hot-rolled steel strip mainly include a cooling roller conveying mechanism and upper and lower spray pipes positioned above the conveying mechanism. The upper spray pipe blows air onto the upper surface of the hot-rolled steel strip, while the lower spray pipe blows air onto the lower surface. However, the installation positions and airflow angles of these pipes are fixed, limiting cleaning to only one direction. This results in a relatively small cleaning angle range, which cannot thoroughly remove residual moisture from the steel strip surface, leading to unsatisfactory cleaning results. Therefore, it is objectively necessary to develop a cleaning device for hot-rolled steel strip after laminar flow cooling that features a reasonable structural design, convenient operation, and effectively improves cleaning performance. Summary of the Invention

[0003] The purpose of this utility model is to provide a cleaning device for hot-rolled strip steel after laminar cooling that has a reasonable structural design, convenient function, and can effectively improve the cleaning effect.

[0004] The purpose of this utility model is achieved as follows: It includes a frame, multiple conveying rollers equally spaced on the frame, and a transmission mechanism for driving the conveying rollers to rotate. Upper support frames are symmetrically installed on both sides of the upper frame along the conveying direction of the conveying rollers. Multiple sets of downward-facing upper cleaners are arranged equally spaced above the conveying rollers. Upper connecting frames are symmetrically installed at both ends of each upper cleaner. An upper lifting mechanism connected to the upper connecting frame is installed on the outer side of the upper support frame. Lower support frames are symmetrically installed on both sides of the lower frame along the conveying direction of the conveying rollers. Multiple sets of upward-facing lower cleaners are arranged equally spaced below the conveying rollers. The lower cleaners are positioned between adjacent conveying rollers, and the lower cleaners are staggered with the upper cleaners. Lower connecting frames are symmetrically installed at both ends of each lower cleaner. A lower lifting mechanism connected to the lower connecting frame is installed on the outer side of the lower support frame. Air inlet pipes are provided at the top of the upper cleaners and the bottom of the lower cleaners, and each air inlet pipe is connected to a compressed air storage tank via an air inlet pipeline.

[0005] Compared with existing technologies, the advantages of this device are as follows: First, this device uses an upper and lower cleaner to replace the traditional blowpipe and lower blowpipe structure. The air output from the upper and lower cleaners is more uniform, enabling even cleaning of the upper and lower surfaces of the hot-rolled steel strip, thus improving the cleaning effect. Second, the installation structure of the upper and lower cleaners is optimized. The upper cleaner is mounted on the upper support frame using an upper lifting mechanism, and the lower cleaner is mounted on the lower support frame using a lower lifting mechanism. The upper lifting mechanism can adjust the cleaning height and cleaning angle of the upper cleaner in real time, while the lower cleaning mechanism... The lifting mechanism can adjust the cleaning height and angle of the lower sweeper in a timely manner. By adjusting the height and angle of the upper and lower sweepers, the cleaning angle and range of the upper and lower sweepers can be changed, allowing the cleaning range of the upper and lower sweepers to cover the width of the hot-rolled steel strip. This ensures that all residual moisture on the surface of the hot-rolled steel strip can be blown away, achieving all-round cleaning of the upper and lower surfaces of the hot-rolled steel strip. The upper and lower sweepers working together can thoroughly dry the residual moisture on the surface of the hot-rolled steel strip. The cleaning speed is fast, the cleaning effect is better, and it is easy to promote and use. Attached Figure Description

[0006] Figure 1 This is a front view schematic diagram of the present invention;

[0007] Figure 2 This is a side view of the present invention;

[0008] Figure 3 This is a front view schematic diagram of the upper connecting frame 5 and the upper lifting mechanism 6 in this utility model;

[0009] Figure 4 This is a side view of the upper connecting frame 5 and the upper lifting mechanism 6 in this utility model;

[0010] Figure 5 This is a top view of the upper cleaner 4 and the upper connecting frame 5 in this utility model;

[0011] Figure 6 for Figure 2 An enlarged schematic diagram of part A in the middle;

[0012] Figure 7 This is a schematic diagram of the upper cleaner 4 in this utility model;

[0013] In the diagram: 1-Frame, 2-Conveyor roller, 3-Upper support frame, 4-Upper sweeper, 41-Upper air inlet box, 42-Lower sweeping box, 43-Upper guide rod, 5-Upper connecting frame, 51-Connecting plate, 52-Rotating shaft, 53-Drive motor, 54-Driving bevel gear, 55-Driven bevel gear, 6-Upper lifting mechanism, 61-Fixed housing, 62-Lifting cylinder, 63-Moving housing, 64-Positioning plate, 7-Lower support frame 8-Lower sweeper, 81-Lower guide rod, 9-Lower connecting frame, 10-Lower lifting mechanism, 11-Inlet pipe, 12-Compressed air tank, 13-Main distribution pipe, 14-Branch distribution pipe, 15-Connecting pipe, 16-First hose, 17-Side spray pipe, 18-Nozzle, 19-Mounting plate, 20-Rotating joint, 21-Second hose, 22-Drive cylinder, 23-Gear plate, 24-Gear, 25-Wastewater tank. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings, but this description is not intended to limit the present invention in any way. Any changes or improvements made based on the teachings of the present invention shall fall within the protection scope of the present invention.

[0015] like Figures 1-7As shown, this utility model includes a frame 1, multiple conveying rollers 2 evenly spaced on the frame 1, and a transmission mechanism for driving the conveying rollers 2 to rotate. The transmission mechanism can use the sprocket drive structure used in the prior art. The sprocket rotation structure includes sprockets fitted on the conveying rollers 2, with several sprockets corresponding one-to-one with the conveying rollers 2. The several conveying rollers are connected by chain drive. The machine body is also equipped with a motor that drives one of the sprockets to rotate. Upper support frames 3 are symmetrically installed on both sides of the upper part of the frame 1 along the conveying direction of the conveying rollers 2. The structure of the upper support frame 3 includes... The side plates on both sides and the crossbeams installed between the top of the side plates, etc., have multiple sets of downward-facing upper cleaners 4 arranged at equal intervals above the conveyor roller 2. Upper connecting frames 5 are symmetrically installed at both ends of each upper cleaner 4. An upper lifting mechanism 6 connected to the upper connecting frame 5 is installed on the outer side of the upper support frame 3. The upper lifting mechanism 6 drives the upper cleaner 4 to move up and down or rotate through the upper connecting frame 5, thereby adjusting the lifting and cleaning angle of the upper cleaner 4. Lower supports are symmetrically installed on both sides below the frame 1 along the conveying direction of the conveyor roller 2. The lower support frame 7 and the upper support frame 3 have the same structure and are arranged symmetrically. The structure of the lower support frame 7 includes side plates on both sides and a crossbeam installed between the tops of the side plates. Multiple sets of downward-facing lower cleaners 8 are arranged at equal intervals below the conveyor rollers 2. The lower cleaners 8 are positioned between adjacent conveyor rollers 2, and are staggered with the upper cleaners 4. This staggered arrangement of the lower cleaners 8 and upper cleaners 4 can reduce the impact force on the hot-rolled steel strip. Lower connecting frames 9 are symmetrically installed at both ends of the lower cleaners 8. The lower support frame 7 is equipped with a lower lifting mechanism 10 connected to the lower connecting frame 9. The lower lifting mechanism 10 drives the lower sweeper 8 to move up and down or rotate through the lower connecting frame 9, thereby adjusting the lifting and sweeping angle of the lower sweeper 8. The top of the upper sweeper 4 and the bottom of the lower sweeper 8 are both provided with air inlet pipes 11. The air inlet pipes 11 are respectively connected to compressed air tanks 12 through air inlet pipelines. The compressed air tanks 12 store compressed air and are equipped with corresponding pressure gauges, safety valves and other structural components.

[0016] The working process of this device is as follows: During use, the transmission roller 2 rotates under the action of the transmission mechanism. The hot-rolled steel strip, after laminar flow cooling, enters the conveyor roller 2, which drives the hot-rolled steel strip forward. The air inlet pipe delivers compressed air from the compressed air storage tank 12 to the upper cleaner 4 and the lower cleaner 8. During the conveying process, the upper cleaner 4 blows compressed air toward the upper surface of the hot-rolled steel strip, and the lower cleaner 8 blows compressed air toward the lower surface of the hot-rolled steel strip. The compressed air blown out by the upper cleaner 4 can blow away the moisture remaining on the surface of the conveyor steel strip to both sides of the parallel steel strip. By using the upper cleaner 8 to blow air clean the upper surface of the conveyor steel strip, the residual moisture on the upper surface of the conveyor steel strip can be removed. Similarly, the compressed air blown out by the lower cleaner 8 can blow away the moisture remaining on the surface of the conveyor steel strip to both sides of the parallel steel strip. By using the lower cleaner 8 to blow air clean the lower surface of the conveyor steel strip, the residual moisture on the upper surface of the conveyor steel strip can be removed. The residual moisture on the lower surface of the conveyor belt is blown away. During the air cleaning process of the conveyor belt by the upper cleaner 4 and the lower cleaner 8, the upper cleaner 4 is mounted on the upper support frame 3 using an upper lifting mechanism 6, and the lower cleaner 8 is mounted on the lower support frame 7 using a lower lifting mechanism 10. The upper lifting mechanism 6 can adjust the cleaning height and cleaning angle of the upper cleaner 4 in a timely manner, and the lower lifting mechanism 10 can adjust the cleaning height and cleaning angle of the lower cleaner 8 in a timely manner. The height and adjustment of the upper and lower sweepers 4 and 8 can change the angle and range of the upper and lower sweepers 8, allowing the sweeping range of the upper and lower sweepers 4 and 8 to cover the width of the hot-rolled steel strip. This ensures that all residual moisture on the surface of the hot-rolled steel strip can be blown away, achieving all-round cleaning of the upper and lower surfaces of the hot-rolled steel strip. The upper and lower sweepers 4 and 8 working together can thoroughly dry the residual moisture on the surface of the hot-rolled steel strip, with a faster cleaning speed and better cleaning effect.

[0017] Furthermore, the lifting mechanism 6 includes a fixed housing 61, lifting cylinders 62, and a movable housing 63. The lifting cylinder 62 is a structure used in the prior art, and finished products are directly purchased based on the usage stroke, pressure, etc. The fixed housing 61 has an open top and is fixedly installed on the outside of the upper support frame 3. The movable housing 63 has an open bottom and is slidably installed inside the fixed housing 61. There are multiple lifting cylinders 62. The fixed end of the lifting cylinder 62 is installed at the bottom inside the fixed housing 61, and the movable end of the lifting cylinder 62 is fixedly connected to the top inside the movable housing 63. A positioning plate 64 is installed on the top of the body 61, and the upper connecting frame 5 is installed on the positioning plate 64. The structure of the lower lifting mechanism 10 is the same as that of the upper lifting mechanism 6. In use, by controlling the shortening or extension of the movable end of the lifting cylinder 62, the movable box 63 can be controlled to rise or fall within the fixed box 61, thereby driving the positioning plate 64, the upper connecting frame 5, and the upper cleaner 4 to rise or fall synchronously. The rise or fall of the upper cleaner 4 can adjust the height relative to the upper surface of the hot-rolled steel strip in a timely manner. By adjusting the height of the upper cleaner 4 for air blowing cleaning, it is beneficial to improve the cleaning effect of residual moisture in the hot-rolled steel strip. Preferably, the... The upper connecting frame 5 includes a connecting plate 51 and a rotating shaft 52. The connecting plate 51 is installed at the end of the upper sweeper 4. One end of the rotating shaft 52 is connected to the connecting plate 51, and the other end is rotatably connected to the positioning plate 64. A drive motor 53 is installed on the outside of the movable housing 63. The drive motor 53 is a structure used in the prior art, and finished products are directly purchased according to the power required. A drive bevel gear 54 is installed on the output shaft of the drive motor 53, and a driven bevel gear 55, which is driven by the drive bevel gear 54, is installed at the end of the rotating shaft 52. The structure of the lower connecting frame 9 is the same as that of the upper connecting frame 5. In use, the drive motor 53 drives the main... The rotating bevel gear 54 drives the driven bevel gear 55 to rotate, which in turn drives the rotating shaft 52, connecting plate 51, and upper cleaner 4 to rotate. After the air outlet of the upper cleaner 4 rotates to the moving angle, the drive motor 53 stops running, and the upper cleaner 4 can then blow air to clean the upper surface of the hot-rolled steel strip. By adjusting the cleaning angle of the upper cleaner 4, the air blowing range of the upper cleaner 4 can be increased, which can further improve the cleaning effect of residual moisture. The upper lifting mechanism 6 and the lower lifting mechanism 10 are symmetrically arranged. The operating principle of the lower lifting mechanism 10 is the same as that of the upper lifting mechanism 6, and will not be described here.

[0018] Furthermore, in order to evenly deliver the compressed air in the compressed air tank 12 to the upper cleaner 4 and the lower cleaner 8, the air intake pipeline includes a main distribution pipe 13 and branch distribution pipes 14. The main distribution pipe 13 is connected to the compressed air tank 12 through a connecting pipe 15. A control valve and an air pump are installed on the connecting pipe 15. There are multiple branch distribution pipes 14, which are installed at equal intervals on the main distribution pipe 13. Each branch distribution pipe 14 is connected to the corresponding air intake pipe 11 through a first flexible hose 16. In use, the control valve and air pump on the connecting pipe 15 are opened, and the compressed air in the compressed air tank 12 enters the main distribution pipe 13 through the connecting pipe 15, then enters each branch distribution pipe 14, and finally enters the corresponding upper cleaner 4 and lower cleaner 8 through the first flexible hose 16 and the air intake pipe 11.

[0019] Furthermore, the upper cleaner 4 includes an upper air intake box 41 and a lower cleaning box 42. The upper air intake box 41 has a rectangular longitudinal section. The air intake pipe 11 is installed on the top of the upper air intake box 41. The lower cleaning box 42 is installed at the bottom of the upper air intake box 41 and communicates with it. The air outlet at the bottom of the lower cleaning box 42 is arranged along the length of the lower cleaning box 42. The longitudinal section of the lower cleaning box 42 is conical. The width of the internal cavity of the lower cleaning box 42 gradually decreases from top to bottom. The width of the air outlet at the bottom of the lower cleaning box 42 is 3-6 mm. The structure of the lower cleaner 8... Similar to the structure of the upper cleaner 4, compressed air enters the upper air inlet box 41 through the air inlet pipe 11. After the compressed air flows in, it enters the lower cleaner box 42. Since the inner cavity of the lower cleaner box 42 gradually decreases from top to bottom, it can pressurize the compressed air flow, so that the air outlet at the bottom of the lower cleaner box 42 ejects a high-speed airflow at high pressure and high speed. The ejected high-speed airflow uses the surrounding air to amplify the airflow and form a sheet-like laminar airflow. The sheet-like laminar airflow can thoroughly blow away the residual moisture on the surface of the hot-rolled steel strip. The usage method of the lower cleaner 8 is the same as that of the upper cleaner 4.

[0020] Furthermore, in order to ensure that the upper sweeper 4 and the lower sweeper 8 always maintain a vertical movement during the rising or falling process, the upper sweeper 4 is vertically equipped with upper guide rods 43 at both ends of its top. The upper guide rods 43 are slidably disposed through the upper support frame 3. An upper limit block is installed at the top of the upper guide rods 43. The lower sweeper 8 is vertically equipped with lower guide rods 81 at both ends of its bottom. The lower guide rods 81 are slidably disposed through the lower support frame 7. A lower limit block is installed at the bottom of the lower guide rods 81.

[0021] Furthermore, to improve the cleaning effect on the hot-rolled steel strip, side spray pipes 17 are provided on both sides above the upper conveyor roller 2. Multiple nozzles 18 are installed at equal intervals along the length of the side spray pipe 17 facing the conveyor roller 2. Two mounting plates 19 are symmetrically installed on one side of the frame 1. The side spray pipe 17 is rotatably mounted between the two mounting plates 19. One end of the side spray pipe 17 is sealed by an end plate, and the other end is sealed by a rotating joint 20. One end of the rotating joint 20 is connected to a compressed air tank 12 via a second hose 21. A control valve is installed on the second hose 21. A gear 24 is installed on the outside of the rotating joint 20. A drive cylinder 22 is installed on the outside of the frame 1. A toothed plate 23 that meshes with the gear 24 is installed on the top of the movable end of the drive cylinder 22. The drive cylinder 22 is a prior art... The equipment used is purchased as a finished product according to the usage requirements. When the upper cleaner 4 blows the residual moisture to both sides of the hot-rolled steel strip and it cannot be removed, the side spray pipe 17 can be used to spray the side of the hot-rolled steel strip to separate the residual moisture from the side of the hot-rolled steel strip. During use, compressed air is delivered to the side spray pipe 17 through the second hose 21. The compressed air is sprayed out from the nozzle 18, and the compressed air sprayed out from the nozzle 18 can be used to blow away the residual moisture opposite the nozzle 18, so that it is separated from the side of the hot-rolled steel strip. During use, the drive cylinder 22 can be used to drive the toothed plate 23 to move. The movement of the toothed plate 23 drives the gear 24 to rotate at a certain angle. The rotation of the gear 24 drives the side spray pipe 17 to rotate, thereby adjusting the spray angle between the nozzle 18 and the hot-rolled steel strip. By adjusting the spray angle of the nozzle 18, the residual moisture on the side of the hot-rolled steel strip can be cleaned better.

[0022] Furthermore, in order to collect residual moisture, wastewater tanks 25 are provided below both sides of the conveyor roller 2, and the wastewater tanks 25 are installed on the lower support frame 7.

Claims

1. A cleaning device for hot-rolled strip after laminar flow cooling, comprising a frame (1), a plurality of conveyor rollers (2) equally spaced on the frame (1), and a transmission mechanism for driving the conveyor rollers (2) to rotate, characterized in that: On the upper sides of the frame (1), upper support frames (3) are symmetrically installed along the conveying direction of the conveyor roller (2). Multiple sets of upper cleaners (4) with downward-facing air outlets are arranged at equal intervals above the conveyor roller (2). Upper connecting frames (5) are symmetrically installed at both ends of the upper cleaners (4). An upper lifting mechanism (6) connected to the upper connecting frame (5) is installed on the outer side of the upper support frame (3). On the lower sides of the frame (1), lower support frames (7) are symmetrically installed along the conveying direction of the conveyor roller (2). Multiple sets of air outlets are arranged at equal intervals below the conveyor roller (2). The lower cleaner (8) with its opening facing upwards is positioned between two adjacent conveyor rollers (2). The lower cleaner (8) and the upper cleaner (4) are arranged alternately. Lower connecting frames (9) are symmetrically installed at both ends of the lower cleaner (8). A lower lifting mechanism (10) connected to the lower connecting frame (9) is installed on the outside of the lower support frame (7). An air inlet pipe (11) is provided at the top of the upper cleaner (4) and the bottom of the lower cleaner (8). The air inlet pipe (11) is connected to a compressed air storage tank (12) through an air inlet pipeline.

2. The cleaning device for hot-rolled strip after laminar flow cooling according to claim 1, characterized in that: The upper lifting mechanism (6) includes a fixed housing (61), a lifting cylinder (62), and a movable housing (63). The fixed housing (61) has an open top and is fixedly installed on the outside of the upper support frame (3). The movable housing (63) has an open bottom and is slidably installed inside the fixed housing (61). There are multiple lifting cylinders (62). The fixed end of the lifting cylinder (62) is installed at the bottom inside the fixed housing (61), and the movable end of the lifting cylinder (62) is fixedly connected to the top inside the movable housing (63). A positioning plate (64) is installed on the top of the fixed housing (61), and the upper connecting frame (5) is installed on the positioning plate (64). The structure of the lower lifting mechanism (10) is the same as that of the upper lifting mechanism (6).

3. The cleaning device for hot-rolled strip steel after laminar flow cooling according to claim 2, characterized in that: The upper connecting frame (5) includes a connecting plate (51) and a rotating shaft (52). The connecting plate (51) is installed at the end of the upper cleaner (4). One end of the rotating shaft (52) is connected to the connecting plate (51), and the other end is rotatably connected to the positioning plate (64). A drive motor (53) is installed on the outside of the movable housing (63). An active bevel gear (54) is installed on the output shaft of the drive motor (53). A driven bevel gear (55) that is connected to the active bevel gear (54) is installed at the end of the rotating shaft (52). The structure of the lower connecting frame (9) is the same as that of the upper connecting frame (5).

4. The cleaning device for hot-rolled strip after laminar flow cooling according to claim 1, characterized in that: The air intake pipeline includes a main distribution pipe (13) and branch distribution pipes (14). The main distribution pipe (13) is connected to the compressed air storage tank (12) through a connecting pipe (15). A control valve and an air pump are installed on the connecting pipe (15). There are multiple branch distribution pipes (14), which are installed at equal intervals on the main distribution pipe (13). Each branch distribution pipe (14) is connected to the corresponding air intake pipe (11) through a first flexible hose (16).

5. A cleaning device for hot-rolled strip steel after laminar flow cooling according to claim 1, characterized in that: The upper cleaner (4) includes an upper air intake box (41) and a lower cleaning box (42). The upper air intake box (41) has a rectangular longitudinal section. The air intake pipe (11) is installed on the top of the upper air intake box (41). The lower cleaning box (42) is installed at the bottom of the upper air intake box (41) and communicates with the upper air intake box (41). The air outlet at the bottom of the lower cleaning box (42) is set along the length of the lower cleaning box (42). The longitudinal section of the lower cleaning box (42) is cone-shaped. The width of the internal cavity of the lower cleaning box (42) gradually decreases from top to bottom. The width of the air outlet at the bottom of the lower cleaning box (42) is 3-6 mm. The structure of the lower cleaner (8) is the same as that of the upper cleaner (4).

6. The cleaning device for hot-rolled strip after laminar flow cooling according to claim 1, characterized in that: The upper sweeper (4) has upper guide rods (43) vertically installed at both ends of its top. The upper guide rods (43) slide through the upper support frame (3). An upper limit block is installed at the top of the upper guide rods (43). The lower sweeper (8) has lower guide rods (81) vertically installed at both ends of its bottom. The lower guide rods (81) slide through the lower support frame (7). A lower limit block is installed at the bottom of the lower guide rods (81).

7. A cleaning device for hot-rolled strip steel after laminar flow cooling according to claim 1, characterized in that: Side blow pipes (17) are provided on both sides above the upper conveyor roller (2). Multiple nozzles (18) are installed at equal intervals along the length of the side blow pipe (17) facing the conveyor roller (2). Two mounting plates (19) are symmetrically installed on one side of the frame (1). The side blow pipe (17) is rotatably installed between the two mounting plates (19). One end of the side blow pipe (17) is sealed by an end plate, and the other end is sealed by a rotating joint (20). One end of the rotating joint (20) is connected to the compressed air tank (12) through a second hose (21). A control valve is installed on the second hose (21). A gear (24) is installed on the outside of the rotating joint (20). A drive cylinder (22) is installed on the outside of the frame (1). A toothed plate (23) that meshes with the gear (24) is installed on the top of the movable end of the drive cylinder (22).

8. A cleaning device for hot-rolled strip steel after laminar flow cooling according to claim 1, characterized in that: Wastewater tanks (25) are provided below both sides of the conveyor roller (2), and the wastewater tanks (25) are installed on the lower support frame (7).

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