Spraying device of finishing mill

Abstract

The utility model belongs to the technical field of steel rolling equipment, particularly relates to a spraying device of a finishing mill, and aims to solve the problems in the prior art that a shower head is easily blocked due to accumulation of scale and scale and the spraying uniformity is reduced if the shower head is not cleaned in time, the following scheme is provided: the spraying device of the finishing mill comprises spraying frames and a base, and the base is positioned between the spraying frames; storage boxes are fixedly mounted on the left side and the right side of the spraying frame; the spraying mechanism is arranged in the spraying frame and is used for spraying the surface of the finishing mill; the mounting boxes are fixedly mounted on the left and right sides of the bottom of the spraying frame; the recycling mechanism is arranged in the base and used for recycling a water source; the anti-blocking cleaning mechanism is arranged at the bottom of the spraying frame and used for cleaning or blocking prevention of the spraying mechanism; the shower head cleaning device can automatically clean the shower head, prevents the shower head from being blocked due to accumulation of oxide scale and incrustation scale, and prevents the spraying uniformity from being reduced due to untimely blockage cleaning.

Description

Technical Field

[0001] This application relates to the field of steel rolling equipment technology, and in particular to a spraying device for a finishing mill. Background Technology

[0002] High-speed wire rod mills use a roll group consisting of upper and lower rolls to roll and shape the workpiece. The area between the upper and lower rolls is the deformation zone of the workpiece. A mill exit guide is installed on the exit side of the roll group to stably guide the rolled workpiece out of the roll group. During the production of bar and wire rod in steel mills, changes in steel temperature and deformation cause oxidation on the steel surface, forming iron oxide. During rolling, the iron oxide is released into the air as dust, resulting in a gray and hazy production site. The harsh working conditions can have irreversible effects on the health of on-site workers, and the dust that falls onto the red-hot steel surface affects product quality.

[0003] CN216441379U discloses a spraying device for a finishing mill, including the mill equipment. The mill equipment has a first water tank with a first water pump inside. A spraying mechanism is located on one side of the first water pump, comprising a pumping pipe, a spray head, a filter, and a filter screen. The pumping pipe is threaded to one side of the filter, and the spray head is threaded to the other side. A filter screen is located inside the filter. The mill equipment also has a second water tank and a second water pump. A cooling water pipe is fixedly connected to the second water pump, with both its inlet and outlet fixedly connected to the upper end of the second water tank. A slot is provided on the cover plate. This structure prevents dust from scattering on-site, effectively improving on-site work, enhancing the quality of the red-hot steel surface, and protecting the health of workers.

[0004] CN211027519U discloses a spraying device for a finishing mill, including a controller and multiple spraying units for spraying lubricating oil. Each spraying unit has two states: spraying oil and not spraying oil. Each spraying unit includes a water pump, and the controller is electrically connected to each water pump. Each spraying unit switches to another state after a certain change cycle, and the change cycle of all spraying units is consistent. Using this technical solution, the operation of the spraying units presents a state that meets the actual production needs, which can better control the shape of the finishing mill pressure rolls, reduce the phenomenon of local looseness and edge formation of metal strip, and improve the product quality of metal strip.

[0005] In existing technologies, shower heads are prone to clogging due to the accumulation of iron oxide scale and limescale. If not cleaned in time, this will lead to a decrease in the uniformity of the spray. Utility Model Content

[0006] The purpose of this invention is to solve the problem that in the prior art, the shower head is easily clogged by the accumulation of iron oxide scale and water scale, which will lead to a decrease in the uniformity of spraying if it is not cleaned in time. Therefore, a spraying device for a finishing mill is proposed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A finishing mill spraying device, comprising:

[0009] The system includes a spray frame and a base, with the base located between the spray frames, and storage boxes fixedly installed on the left and right sides of the spray frames; it also includes:

[0010] The spraying mechanism, located inside the spraying frame, is used to spray the surface of the finishing mill.

[0011] The mounting box is fixedly installed on the bottom left and right sides of the spray frame;

[0012] The recycling mechanism, located inside the base, is used to recycle water.

[0013] The anti-clogging cleaning mechanism is located at the bottom of the spray frame and is used to clean or prevent clogging of the spray mechanism.

[0014] The power adjustment mechanism is located at the bottom of the spray frame.

[0015] Preferably, the spraying mechanism includes two water pumps disposed inside two storage tanks, and the output ends of the two water pumps are fixedly installed with pipes.

[0016] Preferably, the exterior of the two pipes is fixedly connected to the interior of the two storage boxes and the interior of the spray rack, respectively, and a shower head is fixedly installed at one end of each of the two pipes.

[0017] Preferably, the recycling mechanism includes recycling troughs disposed on the left and right sides inside the base, the top of the base is provided with multiple through holes, recycling pumps are disposed inside the two recycling troughs, and installation pipes are fixedly installed at the output ends of the two recycling pumps.

[0018] Preferably, the anti-clogging cleaning mechanism includes a drive motor installed inside the mounting box, a fan blade fixedly mounted on the output shaft of the drive motor, a connecting pipe fixedly mounted on the bottom of the mounting box, and a spray box fixedly mounted on the bottom of the connecting pipe.

[0019] Preferably, a plurality of nozzles are fixedly installed at one end of the spray box, and a connecting seat is fixedly installed at the bottom of the mounting box.

[0020] Preferably, the adjusting power mechanism includes a rotating shaft rotatably mounted inside the connecting seat, a winding roller and a first bevel gear fixedly mounted on the outside of the rotating shaft, the connecting pipe being wound on the winding roller, and the first bevel gear meshing with a second bevel gear.

[0021] Preferably, a rotating rod is fixedly installed at one end of the second bevel gear, the outside of the rotating rod is rotatably connected to the connecting seat and the spray frame, a third bevel gear is fixedly installed on the outside of the rotating rod, the third bevel gear meshes with a fourth bevel gear, a screw is fixedly installed at the bottom of the fourth bevel gear, the outside of the screw is rotatably connected to the inside of the spray frame, a connecting block is threadedly connected to the outside of the screw, the outside of the connecting block is slidably connected to the inside of the spray frame, and an L-plate is fixedly installed at the other end of the connecting block, the L-plate is located at one end of the spray frame, and the L-plate is fixedly connected to the spray box.

[0022] The beneficial effects of the spraying device for a finishing mill described in this utility model are as follows:

[0023] Thanks to the spraying mechanism, a water pump provides stable pressure for the cooling medium, which is then precisely delivered to the spray nozzles via pipelines. This allows for a uniform and comprehensive flow of medium to be sprayed onto the rolling mill rolls and the surface of the rolled workpiece, achieving efficient cooling and lubrication. This not only quickly removes the large amount of heat generated during the rolling process, preventing the rolls from deforming due to overheating and affecting rolling accuracy, but also reduces the frictional resistance between the rolled workpiece and the rolls, lowering energy consumption while improving the surface roughness of the rolled workpiece, effectively enhancing the product's shape accuracy and surface quality stability.

[0024] Because of the recycling mechanism, the cooling medium after spraying can quickly flow into the recycling tank through the through hole at the top of the base, and then return to the storage tank through the recycling pump and installation pipe to achieve recycling and reuse. On the one hand, it greatly reduces the amount of fresh cooling medium replenishment, reduces water waste and production costs, and on the other hand, it reduces the discharge of industrial waste liquid, alleviates the pressure of environmental protection treatment, and conforms to the concept of green production. At the same time, the medium circulation process can reduce production interruptions caused by frequent medium replacement and ensure rolling continuity.

[0025] Thanks to the anti-clogging cleaning mechanism, the fan blades, driven by a motor, generate a high-pressure airflow that is directed through the connecting pipe, spray box, and nozzles to back-blow the shower head under high pressure. This quickly removes clogging materials such as iron oxide scale and limescale from the shower head, and the entire cleaning process can be completed without stopping the machine. This effectively solves the problems of uneven spraying and cooling failure caused by nozzle clogging in traditional spraying devices, significantly improving the uniformity and stability of the spraying. At the same time, it reduces the frequency and time of manual disassembly and cleaning, lowers maintenance costs, increases equipment uptime, and avoids quality problems such as insufficient local cooling of rolled parts and surface defects caused by clogging.

[0026] Thanks to the adjustable power mechanism, the L-plate can be driven to precisely adjust the position of the spray box through the linkage of components such as bevel gear sets, screws, and connecting blocks. This allows for flexible adjustment of the high-pressure backflushing position according to the cleaning needs of different rolling zones and different specifications of rolled products in the finishing mill, significantly improving the targeting and adaptability of anti-clogging cleaning. At the same time, the cooperation between the rotating shaft and the winding roller enables the orderly extension and retraction of the connecting pipe, avoiding pipe entanglement and jamming during adjustment, ensuring smooth and stable adjustment, further improving the reliability and service life of the equipment, and broadening the applicability of the device.

[0027] This invention can automatically clean the shower head, preventing it from becoming clogged due to the accumulation of iron oxide scale and limescale, and preventing reduced spray uniformity caused by untimely cleaning. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a spraying device for a finishing mill proposed in this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the spray frame of the finishing mill spray device proposed in this utility model;

[0030] Figure 3 This is a rear view structural schematic diagram of a spraying device for a finishing mill proposed in this utility model;

[0031] Figure 4 This is a schematic diagram of the adjusting power mechanism and structure of a finishing mill spraying device proposed in this utility model;

[0032] Figure 5 This utility model proposes a spraying device for a finishing mill. Figure 3 Enlarged structural diagram of section A;

[0033] Figure 6 This utility model proposes a spraying device for a finishing mill. Figure 3 Enlarged structural diagram of part B.

[0034] Reference numerals: 1. Sprayer frame; 2. Base; 3. Storage box; 4. Through hole one; 5. Recycling tank; 6. Water pump; 7. Pipe; 8. Shower head; 9. Mounting box; 10. Drive motor one; 11. Fan blade; 12. Connecting seat; 13. Recycling pump; 14. Rotating shaft; 15. Winding roller; 16. Connecting pipe; 17. Spray box; 18. Nozzle; 19. First bevel gear; 20. Second bevel gear; 21. Rotating rod; 22. Third bevel gear; 23. Fourth bevel gear; 24. Screw; 25. Connecting block one; 26. L-plate. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0036] Example 1:

[0037] Reference Figures 1-6 A finishing mill spraying device, comprising:

[0038] The system includes a spray frame 1 and a base 2, with the base 2 positioned between the spray frame 1 and storage boxes 3 fixedly installed on the left and right sides of the spray frame 1; it also includes:

[0039] The spraying mechanism is located inside the spraying frame 1 and is used to spray the surface of the finishing mill.

[0040] Mounting box 9 is fixedly installed on the bottom left and right sides of the spray frame 1;

[0041] A recycling mechanism, located inside base 2, is used to recycle water.

[0042] An anti-clogging cleaning mechanism is installed at the bottom of the spray frame 1 and is used to clean or prevent clogging of the spray mechanism;

[0043] The power adjustment mechanism is located at the bottom of the spray frame 1.

[0044] In this embodiment, the spraying mechanism includes two water pumps 6 disposed inside two storage tanks 3, and pipes 7 are fixedly installed at the output ends of the two water pumps 6.

[0045] In this embodiment, the exterior of the two pipes 7 is fixedly connected to the interior of the two storage boxes 3 and the interior of the spray frame 1, respectively. A shower head 8 is fixedly installed at one end of each of the two pipes 7. The shower head 8 is used to spray the cooling medium evenly onto the surface of the finishing mill.

[0046] In this embodiment, the recycling mechanism includes recycling tanks 5 located on the left and right sides inside the base 2. The top of the base 2 is provided with multiple through holes 4, which are used to guide the sprayed medium into the recycling tanks 5. The recycling pump 13 is used to return the recycled medium to the storage tank 3. The two recycling tanks 5 are each provided with a recycling pump 13, and the output ends of the two recycling pumps 13 are fixedly installed with installation pipes.

[0047] In this embodiment, the anti-clogging cleaning mechanism includes a drive motor 10 disposed inside the mounting box 9. The output shaft of the drive motor 10 is fixedly mounted with a fan blade 11. The drive motor 10 drives the fan blade 11 to generate a high-pressure airflow, which is used to back-blow and clear the blockage of the shower head 8. A connecting pipe 16 is fixedly mounted at the bottom of the mounting box 9, and a spray box 17 is fixedly mounted at the bottom of the connecting pipe 16.

[0048] In this embodiment, a plurality of nozzles 18 are fixedly installed at one end of the spray box 17. The nozzles 18 are used to spray high-pressure airflow into the shower head 8 in a directional manner. A connecting seat 12 is fixedly installed at the bottom of the mounting box 9.

[0049] In this embodiment, the adjusting power mechanism includes a rotating shaft 14 rotatably installed inside the connecting seat 12. A winding roller 15 and a first bevel gear 19 are fixedly installed on the outside of the rotating shaft 14. The connecting pipe 16 is wound on the winding roller 15. The first bevel gear 19 meshes with a second bevel gear 20. The winding roller 15 is used to adjust the winding and unwinding of the connecting pipe 16 according to its position to avoid pipe entanglement.

[0050] In this embodiment, a rotating rod 21 is fixedly installed at one end of the second bevel gear 20. The outside of the rotating rod 21 is rotatably connected to the connecting seat 12 and the spray frame 1. A third bevel gear 22 is fixedly installed on the outside of the rotating rod 21. The third bevel gear 22 meshes with a fourth bevel gear 23. A screw 24 is fixedly installed at the bottom of the fourth bevel gear 23. The outside of the screw 24 is rotatably connected to the inside of the spray frame 1. A connecting block 25 is threadedly connected to the outside of the screw 24. The outside of the connecting block 25 is slidably connected to the inside of the spray frame 1. An L-plate 26 is fixedly installed at the other end of the connecting block 25. The L-plate 26 is located at one end of the spray frame 1 and is fixedly connected to the spray box 17. The rotation of the screw 24 drives the connecting block 25 to move horizontally to adjust the unblocking position of the spray box 17.

[0051] In this invention, during use, the storage tank 3 pre-stores cooling medium. When the finishing mill needs cooling: the water pump 6 inside the storage tank 3 is started, and the water pump 6 pressurizes the medium and delivers it through the pipe 7 to the spray nozzle 8 inside the spray frame 1. The spray nozzle 8 sprays a uniform flow of medium onto the surface of the finishing mill, completing the cooling, lubrication, and removal of iron oxide scale. Cooling medium recycling: the sprayed medium flows naturally into the recycling tank 5 inside the base 2 through the through hole 4 at the top of the base 2. The recycling pump 13 inside the recycling tank 5 is started, and the recycling pump 13 delivers the medium in the recycling tank 5 back to the storage tank 3 through the installation pipe, realizing the recycling and reuse of the cooling medium and reducing resource consumption. Anti-clogging and cleaning of the spray system: when the spray nozzle 8 becomes clogged and the spray uniformity decreases: the drive motor 10 inside the installation box 9 is started, and the drive motor 10 drives the fan blade 11 to rotate at high speed, generating a high-pressure airflow. The high-pressure airflow is delivered to the spray box 17 through the connecting pipe 16, and then sprayed out through the nozzle 18 on the spray box 17. It can perform directional high-pressure back-blowing on the shower head 8 to blow out the blockage in the opposite direction; after cleaning, the drive motor 10 automatically stops, and the spraying mechanism resumes normal spraying. The entire cleaning process does not require stopping, ensuring continuous and uniform spraying; cleaning position adjustment: when it is necessary to adapt to the cleaning needs of different precision rolling areas, the drive screw 24 rotates: the screw 24 drives the connecting block 25 connected to it to move along the sliding structure inside the spray frame 1; the connecting block 25 drives the L plate 26 to move synchronously, and the L plate 26 in turn drives the spray box 17 to adjust its position, so as to achieve precise adaptation of the cleaning area; at the same time, the rotation of the screw 24 drives the fourth bevel gear 23, the fourth bevel gear 23 meshes with the third bevel gear 22 to drive the rotating rod 21 to rotate, and the rotating rod 21 drives the rotating shaft 14 to rotate through the second bevel gear 20 and the first bevel gear 19. The winding roller 15 on the rotating shaft 14 then retracts and extends the connecting pipe 16, ensuring that the connecting pipe 16 moves and extends and retracts in an orderly manner with the spray box 17, avoiding pipe entanglement and jamming.

[0052] Example 2:

[0053] The difference between this embodiment and embodiment one is that a pad is fixedly installed at the bottom of the base 2, which can provide stable support for the base 2 and effectively prevent the spraying device from shifting or shaking due to vibration during operation, thus ensuring the accuracy of the spraying operation. The pad is made of wear-resistant and elastic rubber material, which can not only buffer the impact force generated during the operation of the equipment, but also reduce the frictional wear between the base 2 and the mounting surface.

[0054] Example 3:

[0055] The difference between this embodiment and Embodiment 1 is that push rod motors are installed on the left and right sides inside the spray frame 1. The output shaft of the push rod motor is fixedly equipped with a cleaning brush, which can clean the water on the surface of the base 2 into the through hole 4. The bristles of the cleaning brush are made of high-elasticity nylon material, which has good cleaning ability and can effectively remove residual water stains, iron filings, oil stains and other debris on the surface of the base 2 without scratching or damaging the surface of the base 2. When the spraying operation is completed or the equipment is idle, the push rod motor is started, and its output shaft drives the cleaning brush to move laterally along the surface of the base 2, pushing the water and impurities on the surface of the base 2 into the through hole 4, so that they can be quickly discharged through the through hole 4, keeping the surface of the base 2 clean and dry, and avoiding corrosion of the base 2 or affecting subsequent equipment maintenance operations due to water residue.

[0056] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spraying device for a finishing mill, characterized in that: include: The spray frame (1) and base (2) are located between the spray frame (1), and storage boxes (3) are fixedly installed on the left and right sides of the spray frame (1); it also includes: The spraying mechanism is located inside the spraying frame (1) and is used to spray the surface of the finishing mill. Mounting box (9) is fixedly installed on the bottom left and right sides of the spray frame (1); The recycling mechanism, located inside the base (2), is used to recycle water. The anti-clogging cleaning mechanism is located at the bottom of the spray frame (1) and is used to clean or prevent clogging of the spray mechanism; Adjust the power mechanism, which is located at the bottom of the spray frame (1).

2. The spraying device for a finishing mill according to claim 1, characterized in that: The spraying mechanism includes two water pumps (6) installed inside two storage tanks (3), and the output ends of the two water pumps (6) are fixedly installed with pipes (7).

3. The spraying device for a finishing mill according to claim 2, characterized in that: The exterior of the two pipes (7) is fixedly connected to the interior of the two storage boxes (3) and the interior of the spray rack (1), respectively, and a shower head (8) is fixedly installed at one end of each of the two pipes (7).

4. The spraying device for a finishing mill according to claim 1, characterized in that: The recycling mechanism includes recycling tanks (5) located on the left and right sides inside the base (2). The top of the base (2) is provided with multiple through holes (4). Each of the two recycling tanks (5) is equipped with a recycling pump (13). The output ends of the two recycling pumps (13) are fixedly installed with installation pipes.

5. A finishing mill spraying device according to claim 4, characterized in that: The anti-clogging cleaning mechanism includes a drive motor (10) installed inside the mounting box (9), the output shaft of the drive motor (10) is fixedly mounted with a fan blade (11), the bottom of the mounting box (9) is fixedly mounted with a connecting pipe (16), and the bottom of the connecting pipe (16) is fixedly mounted with a spray box (17).

6. A finishing mill spraying device according to claim 5, characterized in that: Multiple nozzles (18) are fixedly installed at one end of the spray box (17), and a connecting seat (12) is fixedly installed at the bottom of the mounting box (9).

7. A finishing mill spraying device according to claim 6, characterized in that: The adjusting power mechanism includes a rotating shaft (14) rotatably installed inside the connecting seat (12). A winding roller (15) and a first bevel gear (19) are fixedly installed on the outside of the rotating shaft (14). The connecting pipe (16) is wound on the winding roller (15). The first bevel gear (19) meshes with a second bevel gear (20).

8. A finishing mill spraying device according to claim 7, characterized in that: A rotating rod (21) is fixedly installed at one end of the second bevel gear (20). The outside of the rotating rod (21) is rotatably connected to the connecting seat (12) and the spray frame (1). A third bevel gear (22) is fixedly installed on the outside of the rotating rod (21). The third bevel gear (22) meshes with a fourth bevel gear (23). A screw (24) is fixedly installed at the bottom of the fourth bevel gear (23). The outside of the screw (24) is rotatably connected to the inside of the spray frame (1). A connecting block (25) is threadedly connected to the outside of the screw (24). The outside of the connecting block (25) is slidably connected to the inside of the spray frame (1). An L-plate (26) is fixedly installed at the other end of the connecting block (25). The L-plate (26) is located at one end of the spray frame (1). The L-plate (26) is fixedly connected to the spray box (17).

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