Cleaning device for removing scale on surface of steel plate

Abstract

The utility model discloses a cleaning device for removing oxide scale on the surface of a steel plate, which comprises a roller bed machine, the roller bed machine is provided with a water spraying mechanism, and the water spraying mechanism is arranged at the upper end and the lower end of the roller bed machine, is positioned in a gap between movable rollers, and can spray water to the upper surface and the lower surface of a normalized steel plate conveyed on the roller bed machine; quickly cooling the oxide scale and stripping the oxide scale from the normalized steel plate; an air injection mechanism is arranged behind the water spraying mechanism and can inject air to the upper surface of the normalized steel plate conveyed on the roller bed machine; the device is simple in structure and convenient to operate, the surface of a normalized discharged steel plate is rapidly cooled by water mist cooling through the water spraying mechanism, and oxide scales are rapidly stripped from a steel plate body; spraying atomized cooling water by a water mist nozzle to cool the surface of the steel plate; and the stripped oxide scale can be blown off in time through compressed air sprayed by the air spraying mechanism, so that the product quality is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of removing iron oxide scale from normalized steel plates, in particular to a cleaning device for removing iron oxide scale from the surface of steel plates. Background Art

[0002] Steel plates are normalized in open-flame furnaces. After normalizing, they are covered with scale, making them difficult to clean. Normalized steel plates that have not been descaled often miss inspections. The scale falls off and accumulates during lifting or subsequent coiling, reacting against the steel plates, resulting in numerous pits on the surface. Furthermore, the working environment is harsh, severely affecting the appearance and leading to numerous customer complaints. Therefore, those skilled in the art have provided a cleaning device for removing scale from the surface of steel plates to address the problems raised in the aforementioned background art. Summary of the Invention

[0003] The purpose of the utility model is to provide a cleaning device for removing iron oxide scale on the surface of a steel plate, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cleaning device for removing iron oxide scale from the surface of a steel plate, comprising: a roller conveyor, on which a plurality of movable rollers are arranged side by side; the roller conveyor is used to transport steel plates that have completed normalizing from an open flame furnace, and the roller conveyor is provided with a water spraying mechanism, which is arranged at the upper and lower ends of the roller conveyor and located in the gap between the movable rollers, and can spray water on the upper and lower surfaces of the normalized steel plates transported on the roller conveyor, so that the iron oxide scale is quickly cooled and peeled off from the normalized steel plates; an air jet mechanism is provided behind the water spraying mechanism, and the air jet mechanism can spray air on the surface of the normalized steel plates transported on the roller conveyor.

[0005] Furthermore, the water spraying mechanism includes: a fixed frame, which is fixedly connected to the roller conveyor, and an upper water spray barrel and a lower water spray barrel are fixedly connected to the upper and lower ends of the fixed frame. The upper water spray barrel and the lower water spray barrel are provided with a number of evenly arranged water spray nozzles, and the water spray nozzles are arranged facing each other, and the water spray nozzles are facing the normalized steel plates transported on the roller conveyor. The upper water spray barrel and the lower water spray barrel are on the other side and connected to the main water pipe. The other end of the main water pipe is connected to a high-pressure water pump, and the high-pressure water pump is arranged in the water tank for pumping water out of the water tank and spraying it through the water spray nozzles.

[0006] Furthermore, the jet mechanism includes: a connecting plate, one side of the connecting plate is fixedly connected to the roller conveyor, an air cylinder is provided on the connecting plate, the air cylinder is located above the roller conveyor, an air jet pipe is provided at the bottom of the air cylinder, and the air jet pipe is arranged downwardly inclined toward the side of the water spray mechanism; the outer end of the air cylinder is connected to the air compressor through a connecting pipe.

[0007] Furthermore, the pressure of the compressed air ejected from the air jet pipe is 0.4 to 0.6 MPa.

[0008] Furthermore, the water spray nozzle is an atomizing nozzle capable of spraying atomized water.

[0009] Furthermore, a cleaning channel is provided behind the jet mechanism, and steel wire brushes are provided at the upper and lower ends of the cleaning channel. During operation, the normalized steel plate passes through the cleaning channel, and the steel wire brushes at the upper and lower ends of the cleaning channel abut against the upper and lower surfaces of the normalized steel plate.

[0010] Furthermore, the inclination angle between the air jet pipe and the roller conveyor is 30° to 60°.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model has a simple structure and is easy to operate. By utilizing the large difference in linear expansion coefficients between the steel plate body and the adhered iron oxide scale, the surface of the normalized steel plate is rapidly cooled by water mist through a water spray mechanism, and the iron oxide scale is quickly peeled off from the steel plate body. A water mist nozzle is used to spray atomized cooling water to cool the steel plate surface, and the cooling intensity is moderate, which can not only peel off the iron oxide scale but also does not change the ferrite and pearlite structure of the normalized steel plate. By adjusting the cooling intensity of the upper and lower surfaces of the steel plate, it is ensured that the steel plate is cooled evenly and not deformed. The peeled iron oxide scale can be blown off in time by the compressed air sprayed by the jet mechanism, thereby greatly improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0015] Figure 3 It is a main schematic diagram of the utility model;

[0016] Figure 4 It is a left side schematic diagram of the utility model;

[0017] Figure 5 for Figure 4 A local enlarged schematic diagram of point A;

[0018] In the figure: 1. Roller conveyor; 101. Movable roller; 2. Water spray mechanism; 201. Fixed frame; 203. Water nozzle; 204. Upper water spray cylinder; 205. Lower water spray cylinder; 206. Main water pipe; 207. High-pressure water pump; 208. Water tank; 3. Jet mechanism; 301. Connecting plate; 302. Air cylinder; 303. Jet pipe; 304. Connecting pipe; 305. Air compressor; 4. Cleaning channel; 401. Wire brush. DETAILED DESCRIPTION

[0019] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 5 A cleaning device for removing iron oxide scale from the surface of a steel plate comprises: a roller conveyor 1, on which a plurality of movable rollers 101 are arranged side by side; the roller conveyor 1 is used to transport steel plates that have completed normalizing from an open flame furnace, and the roller conveyor 1 is provided with a water spraying mechanism 2, which is arranged at the upper and lower ends of the roller conveyor 1 and located in the gap between the movable rollers 101, and can spray water on the upper and lower surfaces of the normalized steel plates transported on the roller conveyor 1, so that the iron oxide scale is quickly cooled and peeled off from the normalized steel plates; an air jet mechanism 3 is provided behind the water spraying mechanism 2, and the air jet mechanism 3 can spray air on the surface of the normalized steel plates transported on the roller conveyor 1.

[0021] In this embodiment, the water spraying mechanism 2 includes: a fixed frame 201, the fixed frame 201 is fixedly connected to the roller conveyor 1, and the upper and lower ends of the fixed frame 201 are fixedly connected with an upper water spray barrel 204 and a lower water spray barrel 205, and the upper water spray barrel 204 and the lower water spray barrel 205 are provided with a plurality of evenly arranged water spray nozzles 203, and the water spray nozzles 203 are arranged facing each other, and the water spray nozzles 203 are facing the normalized steel plates transported on the roller conveyor 1, the upper water spray barrel 204 and the lower water spray barrel 205 are on the other side and connected to the main water pipe 206, and the other end of the main water pipe 206 is connected to a high-pressure water pump 207, and the high-pressure water pump 207 is arranged in the water tank 208, for pumping out water in the water tank 208 and spraying it through the water spray nozzles 203.

[0022] In this embodiment, the jet mechanism 3 includes: a connecting plate 301, one side of the connecting plate 301 is fixedly connected to the roller conveyor 1, an air cylinder 302 is provided on the connecting plate 301, the air cylinder 302 is located above the roller conveyor 1, and an air jet pipe 303 is provided at the bottom of the air cylinder 302, and the air jet pipe 303 is arranged downwardly and tilted toward the side of the water spray mechanism 2; the outer end of the air cylinder 302 is connected to the air compressor 305 through a connecting pipe 304.

[0023] In this embodiment, the pressure of the compressed air ejected from the air injection pipe 303 is 0.4 to 0.6 MPa.

[0024] In this embodiment, the water spray nozzle 203 is an atomizing nozzle capable of spraying atomized water.

[0025] In this embodiment, a cleaning channel 4 is provided behind the jet mechanism 3, and wire brushes 401 are provided at the upper and lower ends of the cleaning channel 4. During operation, the normalized steel plate passes through the cleaning channel 4, and the wire brushes 401 at the upper and lower ends of the cleaning channel 4 abut against the upper and lower surfaces of the normalized steel plate.

[0026] Specifically, after the normalized steel plate passes through the water spray mechanism 2 and the air jet mechanism 3, the iron oxide scale has been removed, but in actual work, there will still be some uncleaned areas remaining. At this time, when the steel plate passes through the cleaning channel 4, the wire brushes 401 at the upper and lower ends of the cleaning channel 4 abut against the upper and lower surfaces of the normalized steel plate. Through the friction between the wire brush 401 and the surface of the normalized steel plate, the areas where the iron oxide scale has not been cleaned can be thoroughly cleaned. As a secondary cleaning component, it greatly improves work efficiency.

[0027] In this embodiment, the inclination angle between the air jet pipe 303 and the roller conveyor 1 is 30° to 60°.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] The utility model has a simple structure and is easy to operate. By utilizing the large difference in linear expansion coefficients between the steel plate body and the adhered iron oxide scale, the surface of the normalized steel plate is rapidly cooled by water mist through a water spray mechanism 2, and the iron oxide scale is quickly peeled off from the steel plate body. A water mist nozzle is used to spray atomized cooling water to cool the steel plate surface, and the cooling intensity is moderate, which can not only peel off the iron oxide scale, but also does not change the ferrite and pearlite structure of the normalized steel plate. By adjusting the cooling intensity of the upper and lower surfaces of the steel plate, it is ensured that the steel plate is cooled evenly and not deformed. The peeled iron oxide scale can be blown off in time by the compressed air sprayed by the jet mechanism 3, thereby greatly improving the product quality.

Claims

1. A cleaning device for removing iron oxide scale from the surface of a steel plate, comprising: A roller conveyor is provided with a plurality of movable rollers arranged side by side; the roller conveyor is used to transport steel plates that have completed normalizing from an open flame furnace, and is characterized in that: the roller conveyor is provided with a water spraying mechanism, which is arranged at the upper and lower ends of the roller conveyor and located in the gap between the movable rollers, and can spray water on the upper and lower surfaces of the normalized steel plates transported on the roller conveyor, so that the iron oxide scale can be quickly cooled and peeled off from the normalized steel plates; an air jet mechanism is provided behind the water spraying mechanism, and the air jet mechanism can spray air on the surface of the normalized steel plates transported on the roller conveyor.

2. The cleaning device for removing iron oxide scale from the surface of a steel plate according to claim 1, characterized in that: The water spraying mechanism includes: a fixed frame, which is fixedly connected to the roller conveyor, and an upper water spraying cylinder and a lower water spraying cylinder are fixedly connected to the upper and lower ends of the fixed frame. The upper water spraying cylinder and the lower water spraying cylinder are provided with a plurality of evenly arranged water spraying nozzles, and the water spraying nozzles are arranged facing each other, and the water spraying nozzles are directed toward the normalized steel plates transported on the roller conveyor. The upper water spraying cylinder and the lower water spraying cylinder are on the other side and connected to the main water pipe. The other end of the main water pipe is connected to a high-pressure water pump, and the high-pressure water pump is arranged in a water tank for pumping water out of the water tank and spraying it through the water spraying nozzles.

3. The cleaning device for removing iron oxide scale from the surface of a steel plate according to claim 1, characterized in that: The jet mechanism includes: a connecting plate, one side of which is fixedly connected to the roller conveyor, an air cylinder is provided on the connecting plate, the air cylinder is located above the roller conveyor, an air jet pipe is provided at the bottom of the air cylinder, and the air jet pipe is arranged downwardly and inclined toward the side of the water spray mechanism; the outer end of the air cylinder is connected to the air compressor through a connecting pipe.

4. The cleaning device for removing iron oxide scale from the surface of a steel plate according to claim 3, characterized in that: The air pressure of the compressed air ejected from the air jet pipe is 0.4 to 0.6 MPa.

5. The cleaning device for removing iron oxide scale from the surface of a steel plate according to claim 2, characterized in that: The water spray nozzle is an atomizing nozzle that can spray atomized water.

6. The cleaning device for removing iron oxide scale from the surface of a steel plate according to claim 1, characterized in that: A cleaning channel is provided behind the jet mechanism, and steel wire brushes are provided at the upper and lower ends of the cleaning channel. During operation, the normalized steel plate passes through the cleaning channel, and the steel wire brushes at the upper and lower ends of the cleaning channel abut against the upper and lower surfaces of the normalized steel plate.

7. The cleaning device for removing iron oxide scale from the surface of a steel plate according to claim 3, characterized in that: The inclination angle between the air jet pipe and the roller conveyor is 30° to 60°.

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