Decarburization prevention spraying device for steel billet rolling

Abstract

The utility model relates to the field of steel rolling equipment, in particular to an anti-decarburization spraying device for steel billet rolling, which comprises a shell, a spraying cabin and a cleaning cabin are arranged in the shell, a plurality of support rollers are arranged in the shell, four first telescopic rods are arranged in the spraying cabin, spray guns are arranged at the end parts of the first telescopic rods, and a spraying component is arranged outside the spraying cabin. The spraying assembly is provided with a hose connected with the spraying gun, four telescopic assemblies are arranged in the cleaning cabin, and steel wire brushes are arranged at the ends of the telescopic assemblies. The device has the function of removing steel billet oxide scales before spraying, steel billet decarburization in the heating process is avoided, and the steel surface quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of steel rolling equipment, in particular to an anti-decarburization spraying device for steel billet rolling. Background Art

[0002] Steel decarburization refers to the process in which the carbon content on the surface of steel decreases when it is heated. The principle is that the carbon in the steel reacts with hydrogen or oxygen at high temperature to generate methane or carbon monoxide. After decarburization, the surface plasticity of the steel will decrease, it will be easy to crack, affect wear resistance, reduce hardness, and be prone to fatigue damage. In order to solve this problem, anti-decarburization coating is sprayed on the surface of the steel billet before rolling. However, there is oxide scale on the surface of the steel billet. If the oxide scale is not removed, the anti-decarburization coating will be sprayed to the outside of the oxide scale, and the oxide scale will fall off or cause the anti-decarburization coating to fall off. Therefore, it is particularly necessary to develop an anti-decarburization spraying device for billet rolling that can remove the oxide scale of the steel billet before spraying. Summary of the invention

[0003] The utility model aims to provide an anti-decarburization spraying device for steel billet rolling, which has the function of removing the oxide scale of the steel billet before spraying, and avoiding the decarburization of the steel billet during the rolling process.

[0004] The technical solutions adopted are as follows:

[0005] A decarburization prevention spraying device for billet rolling comprises a shell, a spraying cabin and a cleaning cabin are arranged in the shell, a plurality of supporting rollers are arranged in the shell, four first telescopic rods are arranged in the spraying cabin, spray guns are arranged at the ends of the first telescopic rods, a spraying assembly is arranged outside the spraying cabin, the spraying assembly is provided with a hose connected to the spray gun, four telescopic assemblies are arranged in the cleaning cabin, and wire brushes are arranged at the ends of the telescopic assemblies.

[0006] Preferably, the telescopic assembly includes a second telescopic rod and a spring telescopic rod, a pressure roller is rotatably provided at the end of the spring telescopic rod, a wire brush is provided on the side of the pressure roller, and a steel cable is connected to the end of the second telescopic rod, which is connected to the end of the spring telescopic rod.

[0007] Preferably, the telescopic components are staggered and adjacent telescopic components are perpendicular to each other.

[0008] Preferably, a plurality of third telescopic rods are provided in the cleaning cabin, high-pressure air nozzles are provided at the ends of the third telescopic rods, a high-pressure air pump is provided outside the cleaning cabin, and the high-pressure air pump is provided with air pipes connected to each high-pressure air nozzle.

[0009] Preferably, the high-pressure air nozzle is at 45 degrees to the vertical direction.

[0010] Preferably, a partition is provided between the third telescopic rod and the telescopic assembly, and a through hole is provided on the partition for the steel billet to pass through.

[0011] Preferably, the first telescopic rods are all arranged along the diagonal lines of the steel billet.

[0012] Compared with the prior art, the beneficial effects are:

[0013] 1. Before spraying the steel billet, the utility model uses a telescopic component to press a steel wire brush onto the surface of the steel billet, uses the steel wire brush to remove the oxide layer on the surface of the steel billet, and then uses each spray gun to spray anti-decarburization coating on the surface of the steel billet to avoid decarburization of the steel billet during rolling.

[0014] 2. The utility model is provided with a high-pressure air nozzle, which is used to spray the steel billet after the oxide scale is removed, so as to blow off the impurities on the surface of the steel billet, which is conducive to the close combination of the anti-decarburization coating and the steel billet.

[0015] 3. In the utility model, the first telescopic mechanism, the telescopic assembly and the third telescopic assembly can all adjust the length, thereby changing the distance between the spray gun, the wire brush and the high-pressure air nozzle and the steel billet, thereby adapting to steel billets of different sizes, and having strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural diagram of a decarburization prevention spraying device for steel billet rolling according to the utility model.

[0017] Figure 2 yes Figure 1 The structural diagram at A in the middle,

[0018] Figure 3 This is a side view structural diagram of a decarburization prevention spraying device for steel billet rolling according to the utility model.

[0019] In the figure: 1, shell, 2, spraying cabin, 3, cleaning cabin, 4, support roller, 5, first telescopic rod, 6, spray gun, 7, spray assembly, 8, wire brush, 9, second telescopic rod, 10, spring telescopic rod, 11, pressure roller, 12, steel cable, 13, third telescopic rod, 14, high-pressure jet nozzle, 15, high-pressure air pump, 16, air pipe, 17, partition, 18, through hole. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with specific embodiments. Figures 1 to 3 As shown:

[0021] Embodiment 1: A decarburization prevention spraying device for billet rolling comprises a shell 1, a spraying cabin 2 and a cleaning cabin 3 are arranged in the shell 1, a plurality of support rollers 4 are arranged in the shell 1, the support rollers 4 are used to support the billet to move in the shell 1, four first telescopic rods 5 are arranged in the spraying cabin 2, and spray guns 6 are arranged at the ends of the first telescopic rods 5, a spraying assembly 7 is arranged outside the spraying cabin 2, and the spraying assembly 7 is provided with a hose connected to the spray gun 6, and the spraying assembly 7 transports the pressurized paint from the hose to each spray gun 6, and the spray gun 6 is used to spray the billet.

[0022] Four telescopic components are arranged in the cleaning cabin 3, and wire brushes 8 are arranged at the ends of the telescopic components. The telescopic components control the movement of the wire brushes 8, and the wire brushes 8 are pressed on the surface of the steel billet by the telescopic components. The oxide layer on the surface of the steel billet is removed by the wire brushes 8, and then the surface of the steel billet is sprayed with anti-decarburization coating by each spray gun 6 to prevent decarburization of the steel billet during rolling;

[0023] Embodiment 2: A decarburization prevention spraying device for billet rolling comprises a shell 1, a spraying cabin 2 and a cleaning cabin 3 are arranged in the shell 1, a plurality of support rollers 4 are arranged in the shell 1, and the support rollers 4 are used to support the billet to move in the shell 1, four first telescopic rods 5 are arranged in the spraying cabin 2, and spray guns 6 are arranged at the ends of the first telescopic rods 5, and the first telescopic rods 5 are arranged along the diagonal line of the billet.

[0024] A spray assembly 7 is provided outside the spray cabin 2. The spray assembly 7 is provided with a hose connected to the spray gun 6. The spray assembly 7 transports the pressurized paint from the hose to each spray gun 6, and the spray gun 6 is used to spray the steel billet.

[0025] Four telescopic components are arranged in the cleaning cabin 3, and wire brushes 8 are arranged at the ends of the telescopic components. The telescopic components control the movement of the wire brushes 8. The telescopic components include a second telescopic rod 9 and a spring telescopic rod 10. A pressure roller 11 is rotatably arranged at the end of the spring telescopic rod 10. The wire brush 8 is arranged on the side of the pressure roller 11. A steel cable 12 is connected to the end of the second telescopic rod 9. The steel cable 12 is connected to the end of the spring telescopic rod 10. The telescopic components adjust the distance between the wire brush 8 and the billet to adapt to billets of different sizes. The telescopic components are staggered, and adjacent telescopic components are perpendicular to each other.

[0026] A plurality of third telescopic rods 13 are arranged in the cleaning chamber 3, and a high-pressure air nozzle 14 is arranged at the end of the third telescopic rod 13. A high-pressure air pump 15 is arranged outside the cleaning chamber 3. The high-pressure air pump 15 is provided with an air pipe 16 connected to each high-pressure air nozzle 14. The high-pressure air nozzle 14 is 45 degrees to the vertical direction. A partition 17 is arranged between the third telescopic rod 13 and the telescopic assembly. A through hole 18 for the steel billet to pass through is opened on the partition 17. The high-pressure air nozzle 14 is used to spray the steel billet after removing the oxide scale to blow off the impurities on the surface of the steel billet, which is conducive to the close bonding of the anti-decarburization coating and the steel billet.

[0027] The specific working process is as follows: the steel billet enters the shell 1, and the support roller 4 supports the steel billet to move in the shell 1. The steel billet first enters the cleaning cabin 3, and the telescopic assembly controls the wire brush 8 to press on the surface of the steel billet. The wire brush 8 is used to remove the oxide layer on the surface of the steel billet, and then the impurities on the surface of the steel billet are blown off by each high-pressure air nozzle 14. After the steel billet enters the spraying cabin 2, each spray gun 6 is used to spray anti-decarburization coating on the surface of the steel billet to avoid decarburization of the steel billet during rolling.

[0028] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A decarburization prevention spraying device for steel billet rolling, characterized in that: It includes a shell, a spraying cabin and a cleaning cabin are arranged in the shell, a plurality of supporting rollers are arranged in the shell, four first telescopic rods are arranged in the spraying cabin, spray guns are arranged at the ends of the first telescopic rods, a spraying assembly is arranged outside the spraying cabin, the spraying assembly is provided with a hose connected to the spray gun, four telescopic assemblies are arranged in the cleaning cabin, and wire brushes are arranged at the ends of the telescopic assemblies.

2. The anti-decarburization spraying device for steel billet rolling according to claim 1, characterized in that: The telescopic assembly comprises a second telescopic rod and a spring telescopic rod, a pressure roller is rotatably arranged at the end of the spring telescopic rod, a wire brush is arranged on the side of the pressure roller, a steel cable is connected to the end of the second telescopic rod, and the steel cable is connected to the end of the spring telescopic rod.

3. The anti-decarburization spraying device for steel billet rolling according to claim 2, characterized in that: The telescopic components are arranged in a staggered manner, and adjacent telescopic components are perpendicular to each other.

4. The anti-decarburization spraying device for steel billet rolling according to claim 1, characterized in that: A plurality of third telescopic rods are arranged in the cleaning cabin, and high-pressure jet nozzles are arranged at the ends of the third telescopic rods. A high-pressure air pump is arranged outside the cleaning cabin, and the high-pressure air pump is provided with air pipes connected to each high-pressure jet nozzle.

5. The anti-decarburization spraying device for steel billet rolling according to claim 4, characterized in that: The high-pressure air nozzle is 45 degrees to the vertical direction.

6. The anti-decarburization spraying device for steel billet rolling according to claim 4, characterized in that: A partition is arranged between the third telescopic rod and the telescopic assembly, and a through hole for the steel billet to pass through is opened on the partition.

7. The anti-decarburization spraying device for steel billet rolling according to claim 1, characterized in that: The first telescopic rods are all arranged along the diagonal lines of the steel billet.

Images