A surface descaling device for a steel billet

Abstract

A surface descaling device suitable for steel billet rolling, including horizontal beam, drive part, descaling part, induction part and spray part, both ends of the horizontal beam are arranged on the ground through vertical support, the induction part is arranged on the vertical support, and the horizontal beam is located directly above the conveying roller way, the descaling part and the spray part are both arranged on the horizontal beam, the steel billet passes under the descaling part and the spray part in turn, and the drive part is arranged on the descaling part, the steel billet surface scale cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a descaling device, specifically a device capable of removing iron oxide scale from the surface of steel billets on conveyor rollers, belonging to the technical field of steel billet surface descaling equipment. Background Technology

[0002] During steel rolling production, a layer of oxide scale forms on the steel billet during heating and rolling. If this oxide scale is not thoroughly removed, it will not only affect the surface quality of the steel, leading to defects such as pitting and cratering, but also reduce the steel's appearance quality and corrosion resistance. Furthermore, the oxide scale may fall into the rolls during rolling, causing roll wear, affecting roll life, and increasing production costs. Traditional descaling methods mainly rely on high-pressure water descaling. However, high-pressure water descaling is not ideal for removing oxide layers with complex structures, such as dense and hard oxide layers formed on the surface of alloy steel billets due to the influence of alloying elements, or multi-layered and uneven oxide layers formed under special rolling processes. In addition, high-pressure water descaling alone is difficult to achieve precise and efficient descaling when dealing with steel billets of different materials, temperatures, and oxide layer thicknesses. Therefore, a descaling device is needed to achieve the goal of efficiently removing iron oxide scale from the surface of steel billets. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a surface descaling device suitable for rolled steel billets, which can effectively improve the removal efficiency of iron oxide scale on the surface of steel billets.

[0004] The problem described in this utility model is solved by the following technical solution: A surface descaling device for rolled steel billets includes a horizontal beam, a driving section, a descaling section, a sensing section, and a spraying section. The two ends of the horizontal beam are mounted on the ground via vertical supports, the sensing section is mounted on the vertical supports, and the horizontal beam is located directly above the conveyor roller conveyor. Both the descaling section and the spraying section are mounted on the horizontal beam, and the steel billet passes sequentially below the descaling section and the spraying section. The driving section is mounted on the descaling section.

[0005] The above-described surface descaling device for rolled steel billets includes a spraying section comprising a first horizontal plate, a first vertical plate, a hollow tube, a first drive motor, and an angle sensor. The first vertical plate is mounted on a horizontal beam via a bracket. Two first vertical plates are symmetrically arranged at both ends of the bottom surface of the first horizontal plate. A first round rod and a second round rod are respectively mounted at both ends of the hollow tube. Holes are provided on both first vertical plates, and the first and second round rods pass through holes on different first vertical plates. The first drive motor is mounted on the outer wall of the first vertical plate, and the angle sensor is mounted on... On the outer wall of the other first vertical plate, the output shaft of the first drive motor is connected to the end of the first round rod, and the angle sensor is connected to the end of the second round rod. A protective cover is provided on the outer wall of the first drive motor. An interface is provided on the side wall of the hollow tube, and a high-pressure water source is connected to the interface on the side wall of the hollow tube through a water pipe. Multiple nozzles are evenly arranged on the side wall of the hollow tube along its axis, and the nozzles are connected to the inner cavity of the hollow tube. The signal input terminal of the first drive motor is connected to the signal output terminal of the CPU. The signal output terminal of the angle sensor is connected to the signal input terminal of the CPU.

[0006] The above-described surface descaling device for rolled steel billets includes a second horizontal plate, a second vertical plate, a rotating roller, and chains. The second horizontal plate is mounted directly below a horizontal beam via a bracket. There are two second vertical plates, symmetrically arranged at both ends of the bottom surface of the second horizontal plate. Holes are provided on the side walls of the second vertical plates, and connecting rods are inserted into the holes of both second vertical plates. The two ends of the rotating roller are respectively connected to the ends of the connecting rods on both sides. There are multiple chains, which are arranged along the axis of the rotating roller on the outer wall of the rotating roller.

[0007] The above-described surface descaling device for rolled steel billets includes a driving component comprising a second drive motor, a driving gear, a driven gear, and a gear chain. The second drive motor is located at the top end of the horizontal beam, and a driving gear is mounted on its output shaft. A driven gear is located at the end of the connecting rod closest to the second drive motor. The driving gear and the driven gear are connected by a gear chain meshing transmission. A protective cover is fitted over the assembly of the second drive motor, driving gear, driven gear, and gear chain. The signal input terminal of the second drive motor is connected to the signal output terminal of the CPU.

[0008] The above-described surface descaling device for rolled steel billets includes a sensing component comprising a horizontal long rod, a first infrared rangefinder, and a second infrared rangefinder. The horizontal long rod is mounted on the side wall of a vertical support. The first and second infrared rangefinders are respectively mounted on the ends of the horizontal long rod near the roller conveyor. The steel billet passes sequentially through the first and second infrared rangefinders. The signal output terminals of both the first and second infrared rangefinders are connected to the signal input terminal of a CPU.

[0009] This invention uses a drive unit to rotate the descaling unit's rotating roller, which in turn causes the chain to swing and slap against the surface of the steel billet, thereby removing the iron oxide scale from the billet surface. The subsequent spraying unit further removes the iron oxide scale from the steel billet. The spraying unit can also spray high-pressure water onto the chain of the rotating roller to clean the chain and prevent iron oxide scale from accumulating on the chain and affecting the subsequent cleaning effect. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the drive unit of this utility model after the external protective cover has been removed.

[0011] The list of labels in the diagram is as follows: 1. Horizontal beam, 2. First horizontal plate, 3. First vertical plate, 4. Hollow tube, 5. First drive motor, 6. Angle sensor, 7. Second horizontal plate, 8. Second vertical plate, 9. Rotating roller, 10. Chain, 11. Second drive motor, 12. Drive gear, 13. Driven gear, 14. Toothed chain, 15. Sensing part. Detailed Implementation

[0012] See Figure 1 and Figure 2 This utility model includes a horizontal beam 1, a driving part, a descaling part, a sensing part 15, and a spraying part; the two ends of the horizontal beam 1 are set on the ground by vertical supports, the sensing part 15 is set on the vertical supports, and the horizontal beam 1 is located directly above the conveyor roller; the function of the sensing part is to sense the coming and going of the steel billet; the descaling part and the spraying part are both set on the horizontal beam 1, and the steel billet passes under the descaling part and the spraying part in sequence; the driving part is set on the descaling part; the steel billet is beaten by the chain and then washed by the spraying part; the spraying part can re-brush the chain 10 after the steel billet passes through, so as to avoid iron oxide scale adhering to the chain as much as possible.

[0013] The spraying section includes a first horizontal plate 2, a first vertical plate 3, a hollow tube 4, a first drive motor 5, and an angle sensor 6. The first vertical plate 3 is mounted on a horizontal beam 1 via a bracket. There are two first vertical plates 3, symmetrically arranged at both ends of the bottom surface of the first horizontal plate 2. The hollow tube 4 has a first round rod and a second round rod at its two ends, respectively. Both first vertical plates 3 have holes, and the first and second round rods pass through different holes in the first vertical plates 3. This ensures that the hollow tube 4 can rotate between the two first vertical plates to adjust its spraying angle. The first drive motor 5 is mounted on the outer wall of the first vertical plate 3, and the angle sensor 6 is mounted on the outer wall of the other first vertical plate 3. The output shaft of the first drive motor 5 is connected to the end of the first round rod. Angle sensor 6 is connected to the end of the second round rod, and a protective cover is provided on the outer wall of the first drive motor 5. The first drive motor can drive the hollow tube 4 to tilt at an angle. Angle sensor 6 can monitor the tilt direction of the hollow tube 4 in real time, thereby determining the direction of spraying. An interface is provided on the side wall of the hollow tube 4, and a high-pressure water source is connected to the interface on the side wall of the hollow tube 4 through a water pipe. A solenoid valve is provided on the water pipe, and the signal input terminal of the solenoid valve is connected to the signal output terminal of the CPU. Multiple nozzles are evenly arranged on the side wall of the hollow tube 4 along its axis, and the nozzles are connected to the inner cavity of the hollow tube 4. The signal input terminal of the first drive motor 5 is connected to the signal output terminal of the CPU. The signal output terminal of the angle sensor 6 is connected to the signal input terminal of the CPU.

[0014] The descaling section includes a second horizontal plate 7, a second vertical plate 8, a rotating roller 9, and chains 10. The second horizontal plate 7 is mounted directly below the horizontal beam 1 via a bracket. There are two second vertical plates 8, which are symmetrically arranged at both ends of the bottom surface of the second horizontal plate 7. Holes are provided on the side walls of the second vertical plates 8, and connecting rods are inserted into the holes of both second vertical plates 8. The two ends of the rotating roller 9 are respectively connected to the ends of the connecting rods on both sides. The connecting rods allow the rotating tube 9 to rotate between the two second vertical plates 8. There are multiple chains 10, which are arranged along the axis of the rotating roller 9 on the outer wall of the rotating roller 9. When the rotating roller 9 rotates, it drives the chains 10 to move, thereby causing the chains 10 to be thrown onto the steel billet, striking the iron oxide scale and peeling it off the steel billet.

[0015] The driving section includes a second drive motor 11, a driving gear 12, a driven gear 13, and a gear chain 14. The second drive motor 11 is located at the top end of the horizontal beam 1, and the driving gear 12 is mounted on its output shaft. The driven gear 13 is located at the end of the connecting rod closest to the second drive motor 11. The driving gear 12 and the driven gear 13 are connected by meshing transmission through the gear chain 14. The second drive motor 11 can drive the driving gear 12 to rotate, and the rotating driving gear 12 drives the driven gear 13 to rotate through the gear chain 14, ultimately driving the rotating roller 9 to rotate. A protective cover is fitted over the assembly of the second drive motor 11, the driving gear 12, the driven gear 13, and the gear chain 14. The signal input terminal of the second drive motor 11 is connected to the signal output terminal of the CPU.

[0016] The sensing part 15 includes a horizontal long rod, a first infrared rangefinder, and a second infrared rangefinder; the horizontal long rod is set on the side wall of the vertical support; the first infrared rangefinder and the second infrared rangefinder are respectively set at the two ends of the horizontal long rod near the roller conveyor; the steel billet passes through the first infrared rangefinder and the second infrared rangefinder in sequence; the first infrared rangefinder can sense the arrival of the steel billet, and the second infrared rangefinder can sense the departure of the steel billet; the signal output terminals of the first infrared rangefinder and the second infrared rangefinder are both connected to the signal input terminal of the CPU; when the distance sensed by the two infrared rangefinders is less than half the length of the conveyor roller, it indicates that there is a steel billet in front of the infrared rangefinder at this time.

[0017] The CPU module in this invention is model 87C196KC.

[0018] Operating principle: When the steel billet receives a signal from the first infrared rangefinder, the second drive motor is activated, driving the rotating roller 9 to rotate. The rotating roller 9 drives the chain 10 to swing and strike the surface of the steel billet, dislodging the iron oxide scale. Simultaneously, the solenoid valve on the water pipe connecting the hollow tube 4 and the high-pressure water source is opened, and a row of nozzles at the bottom of the hollow tube 4 sprays high-pressure water onto the steel billet to wash it. Once the second infrared rangefinder detects the steel billet signal and the signal disappears, the first drive motor 5 activates, driving the hollow tube 4 to rotate, causing the nozzles of the hollow tube 4 to face the rotating roller 9, washing the rotating roller 9 and the chain on it, and washing the iron oxide scale off the chain. Then, the second drive motor is turned off. The first drive motor reverses, driving the hollow tube to reset, so that the nozzles return to their initial vertical downward position, and the solenoid valve on the water pipe is closed. At this point, the iron oxide scale removal operation on the steel billet is completed. When the next steel billet arrives, the above actions are repeated.

Claims

1. A surface descaling device suitable for rolled steel billets, characterized in that: It includes a horizontal beam (1), a drive section, a descaling section, a sensing section (15), and a spraying section; the two ends of the horizontal beam (1) are set on the ground by vertical supports, the sensing section (15) is set on the vertical supports, and the horizontal beam (1) is located directly above the conveyor roller; the descaling section and the spraying section are both set on the horizontal beam (1), and the steel billet passes under the descaling section and the spraying section in sequence; the drive section is set on the descaling section.

2. The surface descaling device for rolled steel billets according to claim 1, characterized in that: The spray section includes a first horizontal plate (2), a first vertical plate (3), a hollow tube (4), a first drive motor (5), and an angle sensor (6); the first vertical plate (3) is mounted on a horizontal beam (1) via a bracket; there are two first vertical plates (3), which are symmetrically arranged at both ends of the bottom surface of the first horizontal plate (2); the hollow tube (4) is provided with a first round rod and a second round rod at both ends; both first vertical plates (3) are provided with holes, and the first round rod and the second round rod pass through the holes on different first vertical plates (3); the first drive motor (5) is mounted on the outer wall of the first vertical plate (3), and the angle sensor (6) is mounted on the other... On the outer wall of a first vertical plate (3), the output shaft of the first drive motor (5) is connected to the end of the first round rod, and the angle sensor (6) is connected to the end of the second round rod. A protective cover is provided on the outer wall of the first drive motor (5). An interface is provided on the side wall of the hollow tube (4), and a high-pressure water source is connected to the interface on the side wall of the hollow tube (4) through a water pipe. Multiple nozzles are evenly arranged on the side wall of the hollow tube (4) along its axis, and the nozzles are connected to the inner cavity of the hollow tube (4). The signal input end of the first drive motor (5) is connected to the signal output end of the CPU. The signal output end of the angle sensor (6) is connected to the signal input end of the CPU.

3. The surface descaling device for rolled steel billets according to claim 2, characterized in that: The descaling section includes a second horizontal plate (7), a second vertical plate (8), a rotating roller (9), and a chain (10); the second horizontal plate (7) is set directly below the horizontal beam (1) by a bracket; there are two second vertical plates (8), which are symmetrically arranged at both ends of the bottom surface of the second horizontal plate (7); holes are provided on the side walls of the second vertical plates (8), and connecting rods are inserted into the holes of the two second vertical plates (8), and the two ends of the rotating roller (9) are respectively connected to the ends of the connecting rods on both sides; there are multiple chains (10), which are arranged along the axis of the rotating roller (9) on the outer wall of the rotating roller (9).

4. The surface descaling device for rolled steel billets according to claim 3, characterized in that: The drive unit includes a second drive motor (11), a drive gear (12), a driven gear (13), and a gear chain (14); the second drive motor (11) is located at the top end of the horizontal beam (1), and a drive gear (12) is provided on its output shaft; a driven gear (13) is provided at the end of the connecting rod closest to the second drive motor (11); the drive gear (12) and the driven gear (13) are connected by meshing transmission through the gear chain (14); a protective cover is provided on the outside of the assembly of the second drive motor (11), the drive gear (12), the driven gear (13), and the gear chain (14); the signal input terminal of the second drive motor (11) is connected to the signal output terminal of the CPU.

5. The surface descaling device for rolled steel billets according to claim 4, characterized in that: The sensing part (15) includes a horizontal long rod, a first infrared rangefinder, and a second infrared rangefinder; the horizontal long rod is set on the side wall of the vertical support; the first infrared rangefinder and the second infrared rangefinder are respectively set at both ends of the horizontal long rod near the roller conveyor; the steel billet passes through the first infrared rangefinder and the second infrared rangefinder in sequence; the signal output terminals of the first infrared rangefinder and the second infrared rangefinder are both connected to the signal input terminal of the CPU.

Images