A surface descaling device for annealing stainless steel clad strip

Abstract

The utility model discloses a stainless steel composite board strip annealing surface descaling device, including strip steel, frame, electric push jar, lifting frame, phosphorus removal roller, blowing mechanism, centering mechanism, electric push jar sets up in frame upper portion, and the ejection end of electric push jar is connected lifting frame, and lifting frame is connected with the support stand column slidingly, and the support stand column is equipped with four groups and is fixed in the middle of frame, and the inside of lifting frame is equipped with the phosphorus removal roller, and the centering mechanism is connected between the two groups of lifting frame of up and down, and the rear part of lifting frame is equipped with blowing mechanism, the phosphorus removal roller makes the mill scale to produce microcrack and to peel off and falls off through mechanical shaking, and high temperature steam is spouted to both sides through steam jet simultaneously, and high temperature steam rapidly penetrates into the mill scale crack, and generates thermal expansion stress, and makes the mill scale further loose, peels off, blowing mechanism adjusts the blowing position, and the position of air pipe and jet head is adjusted through swing mechanism, and jet head sweeps the mill scale and impurity remaining on the surface of strip steel.

Description

Technical Field

[0001] This utility model belongs to the field of stainless steel descaling technology, and specifically relates to a descaling device for the annealed surface of stainless steel composite plate and strip. Background Technology

[0002] During the annealing process, the stainless steel composite plate reacts with oxygen at high temperature, and a dense oxide layer is generated on the surface. If it is directly put into the pickling process without treatment, it will lead to a long pickling time and a significant reduction in the service life of the pickling solution. Some dense oxide layers will also cause surface defects of the strip. It is difficult to completely clean the oxide layer on the surface of the strip through a single pickling process.

[0003] A search revealed a prior art patent publication number CN119615182A, which describes a surface pickling and descaling device for cold-rolled stainless steel strip. This device uses a spray method to pickle the cold-rolled stainless steel strip, and the waste liquid from the pickling process is directly discharged. However, this device does not perform surface treatment on the strip before pickling, and the spray pickling method cannot completely remove the oxide scale on the strip surface, resulting in oxide scale residue. Another prior art patent publication number CN222766976U describes a hot-rolled descaling device. This device uses two sets of straightening plates to clamp the steel for vertical and stable transport, and high-pressure nozzles simultaneously rinse and descal the two sides of the steel. However, using only high-pressure water rinsing is insufficient to remove the dense oxide layer formed on the steel surface. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a descaling device for the annealed surface of stainless steel composite strip. The descaling roller causes micro-cracks in the oxide scale through mechanical vibration and peels it off. At the same time, high-temperature steam is sprayed to both sides through steam nozzles. The high-temperature steam quickly penetrates into the oxide scale cracks and generates thermal expansion stress, which further loosens and peels off the oxide scale. The purging mechanism adjusts the purging position and adjusts the position of the branch pipe and the jet nozzle through the swing mechanism. The jet nozzle purifies the residual oxide scale and impurities on the surface of the strip.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A descaling device for the annealing surface of stainless steel composite strip includes a strip, a frame, an electric pusher cylinder, a lifting frame, a descaling roller, a purging mechanism, a centering mechanism, and a slag-blocking plate. The electric pusher cylinder is located on the upper part of the frame, and its top end is connected to the lifting frame. The lifting frame is slidably connected to a support column, and the support column has four sets fixed in the middle of the frame. A descaling roller is installed inside the lifting frame, and a main steam pipe passes through the upper part of the frame and connects to the descaling roller. The upper and lower sets of lifting frames are connected by a centering mechanism. A purging mechanism is located at the rear of the lifting frame, and a slag-blocking plate is installed between the purging mechanism and the descaling roller. The slag-blocking plate is also fixed on the lifting frame to prevent impurities from splashing during the rotation of the descaling roller. An impurity box is located at the lower part of the purging mechanism. The strip is descaled by the descaling roller, and then the residual impurities on the strip are blown off into the impurity box by the purging mechanism.

[0007] The centering mechanism includes a connecting shaft, connecting rod I, connecting rod II, and connecting rod III. The connecting shaft is fixed on the frame, and connecting rod I is mounted on the connecting shaft. Connecting rod I is rotatably connected to the connecting shaft. Connecting rod II is mounted at the lower end of connecting rod I, and connecting rod III is mounted at the upper end of connecting rod I. Connecting rod II is connected to the lower lifting frame, and connecting rod III is connected to the upper lifting frame. An electric pusher cylinder pushes the upper lifting frame downward, which in turn drives the descaling roller downward. Simultaneously, the upper lifting frame drives connecting rod III to rotate. Connecting rod III drives connecting rod I to rotate around the connecting shaft, and connecting rod III drives connecting rod II to rotate. Connecting rod II drives the lower lifting frame to rise, and the lower lifting frame drives the descaling roller to rise. The descaling rollers on both the upper and lower sides perform centering movements to descal the strip steel in the middle.

[0008] The dephosphorization roller includes a motor I, a drive shaft I, a vibrating roller, branch steam pipes, and steam nozzles. The motor I is mounted on one side of the lifting frame, and its output end is connected to the drive shaft I. Two sets of limiting plates are fixed on the drive shaft I. The limiting plates have multiple slots, and limiting columns are installed in the slots. Anti-fouling plates I are installed on both sides of the slots of the limiting plates. The anti-fouling plates I are telescopic. The two ends of the vibrating roller pass through the anti-fouling plates I and are installed in the slots of the limiting plates. The vibrating roller is also slidably connected to the limiting columns. Springs are sleeved on the limiting columns, and the vibrating roller is pushed out by the springs. Multiple branches are also provided between the two sets of limiting plates. The steam pipe has steam nozzles on its branches, which vent steam to both sides. Motor I controls the rotation of drive shaft I, which in turn drives the limit plate to rotate. The limit plate then drives the branch steam pipe and the vibrating roller to rotate. Springs push out the vibrating rollers to enhance the vibrating effect. During rotation, multiple sets of vibrating rollers mechanically vibrate the oxide scale, causing micro-cracks and peeling it off. The branch steam pipe sprays high-temperature steam to both sides through the steam nozzles. The high-temperature steam quickly penetrates the oxide scale cracks, generating thermal expansion stress, which further loosens and peels off the oxide scale. The combination of vibrating and steam makes the dephosphorization process more efficient.

[0009] The purging mechanism includes a connecting plate, a moving mechanism, a dirt-proof plate II, a support plate, and a swinging mechanism. The connecting plate is fixed to the lifting frame, and the connecting plate is equipped with a moving mechanism. The dirt-proof plate II is fixed inside the moving mechanism, and a telescopic protective plate is provided on the dirt-proof plate II. The dirt-proof plate II is also fixed to the slag-blocking plate. The moving mechanism is connected to the support plate, and the support plate is equipped with a swinging mechanism. The position of the support plate is adjusted by the moving mechanism. The dirt-proof plate II protects the transmission parts of the moving mechanism to prevent oxide scale debris from entering the mechanism and causing it to jam. The support plate drives the swinging mechanism to move, and the swinging mechanism purges the loose oxide scale and residual impurities on the strip steel. The purged impurities fall into the impurity box.

[0010] The moving mechanism includes a motor II, a transmission shaft II, a gear, a rack, and a limiting groove. The motor II is mounted on a connecting plate, and the output end of the motor II is connected to the transmission shaft II. The transmission shaft II is equipped with a gear that meshes with the rack. The rack is located in the limiting groove and is slidably connected to the limiting groove. The limiting groove is fixed to the connecting plate, and a support plate is provided between the two sets of racks. The motor I drives the transmission shaft II to rotate, and the transmission shaft II drives the gear to rotate. The gear meshes with the rack, and the gear drives the rack to move within the limiting groove. The rack drives the support plate to move.

[0011] The swing mechanism includes a motor III, a transmission shaft III, a swing bracket, a branch pipe, jet nozzles, and a main air pipe. Motor III is mounted on the upper part of the support plate, and its output end is connected to the transmission shaft III. Two sets of connecting rods IV are mounted on the transmission shaft III. Connecting rods IV are connected to connecting rod V, and connecting rod V is connected to the swing bracket. The swing bracket is rotatably connected to connecting rod V. The swing bracket is also located at the lower part of the support plate and is rotatably connected to the support plate. A branch pipe, which is a flexible hose, is installed inside the swing bracket. Multiple jet nozzles are mounted on the branch pipe, which is connected to the main air pipe. The air tube is fixed to the support plate; motor III controls the rotation of transmission shaft III, which drives connecting rod IV to rotate, which in turn drives connecting rod V to rotate, which in turn drives the swing bracket to rotate. The swing bracket drives the air tube to swing. The air tube is a flexible hose, which can achieve free swinging at multiple angles while ensuring stable gas transmission. This effectively avoids equipment jamming caused by excessive pipeline rigidity, ensuring smooth and reliable system operation. The air tube drives the jet head to swing, and the jet head blows away residual oxide scale and impurities on the surface of the strip steel to complete the dephosphorization work.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] The descaling roller mechanically vibrates the oxide scale to create micro-cracks and peel it off. Then, high-temperature steam is sprayed out to both sides through steam nozzles. The high-temperature steam quickly penetrates into the oxide scale cracks, generating thermal expansion stress, which further loosens and peels off the oxide scale. The combination of vibration and steam makes the descaling process more efficient. The purging mechanism adjusts the position of the swing mechanism through the moving mechanism, and then adjusts the position of the branch pipe and the jet nozzle through the swing mechanism. The jet nozzle blows away the residual oxide scale and impurities on the surface of the strip steel. The impurities after purging fall into the impurity box. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of the structure of a descaling device for the annealing surface of stainless steel composite plate and strip according to this utility model. Figure 1 ;

[0015] Appendix Figure 2 This is a schematic diagram of the structure of a descaling device for the annealing surface of stainless steel composite plate and strip according to this utility model. Figure 2 ;

[0016] Appendix Figure 3 It is attached Figure 1 Schematic diagram of the center-to-center mechanism;

[0017] Appendix Figure 4 It is attached Figure 1 Schematic diagram of dephosphorization roller structure Figure 1 ;

[0018] Appendix Figure 5 It is attached Figure 1 Schematic diagram of dephosphorization roller structure Figure 2 ;

[0019] Appendix Figure 6 It is attached Figure 1 Schematic diagram of the central purging mechanism;

[0020] Appendix Figure 7 It is attached Figure 6 Schematic diagram of China Mobile's organizational structure;

[0021] Appendix Figure 8 It is attached Figure 6 Schematic diagram of the swing mechanism;

[0022] In the diagram: 11. Strip steel; 12. Frame; 13. Electric pusher cylinder; 14. Support column; 15. Lifting frame; 16. Dephosphorizing roller; 17. Main steam pipe; 18. Blowing mechanism; 19. Impurity box; 20. Centering mechanism; 21. Slag baffle plate; 101. Connecting shaft; 102. Connecting rod I; 103. Connecting rod II; 104. Connecting rod III; 201. Motor I; 202. Drive shaft I; 203. Limiting plate; 204. Vibrating roller; 205. Branch steam pipe; 206. Steam nozzle; 207. Limiting column; 2 08. Spring; 209. Anti-fouling plate I; 301. Connecting plate; 302. Moving mechanism; 303. Anti-fouling plate II; 304. Support plate; 305. Swinging mechanism; 1101. Motor II; 1102. Drive shaft II; 1103. Gear; 1104. Rack; 1105. Limiting groove; 2101. Motor III; 2102. Drive shaft III; 2103. Connecting rod IV; 2104. Connecting rod V; 2105. Swinging bracket; 2106. Bronchial pipe; 2107. Jet nozzle; 2108. Main air pipe. Detailed Implementation

[0023] To facilitate understanding by those skilled in the art, the following is in conjunction with the appendix. Figure 1-8 The technical solution of this utility model will be further described in detail below.

[0024] A descaling device for the annealing surface of stainless steel composite strip includes a strip 11, a frame 12, an electric pusher cylinder 13, a lifting frame 15, a descaling roller 16, a purging mechanism 18, a centering mechanism 20, and a slag-blocking plate 21. The electric pusher cylinder 13 is disposed on the upper part of the frame 12, and its top end is connected to the lifting frame 15. The lifting frame 15 is slidably connected to a support column 14, and the support column 14 has four sets of fixed parts in the middle of the frame 12. The descaling roller 16 is disposed inside the lifting frame 15, and a main steam pipe 17 passes through the upper part of the frame 12 and connects to... The upper and lower sets of lifting frames 15 are connected by a centering mechanism 20 and a dephosphorization roller 16. A purging mechanism 18 is provided at the rear of the lifting frame 15. A slag baffle 21 is provided between the purging mechanism 18 and the dephosphorization roller 16. The slag baffle 21 is fixed on the lifting frame 15. The slag baffle 21 prevents impurities from splashing during the rotation of the dephosphorization roller 16. An impurity box 19 is provided at the lower part of the purging mechanism 18. The strip steel 11 is dephosphorized by the dephosphorization roller 16 and then the residual impurities on the strip steel 11 are blown off into the impurity box 19 by the purging mechanism 18.

[0025] The centering mechanism 20 includes a connecting shaft 101, connecting rod I 102, connecting rod II 103, and connecting rod III 104. The connecting shaft 101 is fixed on the frame 12. Connecting rod I 102 is mounted on the connecting shaft 101 and is rotatably connected to the connecting shaft 101. Connecting rod II 103 is located at the lower end of connecting rod I 102, and connecting rod III 104 is located at the upper end of connecting rod I 102. Connecting rod II 103 is connected to the lower lifting frame 15, and connecting rod III 104 is connected to the upper lifting frame 15. An electric push cylinder 1... 3. Push the upper lifting frame 15 down, the lifting frame 15 drives the descaling roller 16 down, the upper lifting frame 15 simultaneously drives the connecting rod Ⅲ 104 to rotate, the connecting rod Ⅲ 104 drives the connecting rod Ⅰ 102 to rotate around the connecting shaft 101, the connecting rod Ⅲ 104 drives the connecting rod Ⅱ 103 to rotate, the connecting rod Ⅱ 103 drives the lower lifting frame 15 to rise, the lower lifting frame 15 drives the descaling roller 16 to rise, the descaling rollers 16 on both the upper and lower sides make centering movements, and perform descaling work on the middle strip steel 11.

[0026] The dephosphorization roller 16 includes a motor I 201, a drive shaft I 202, a vibrating roller 204, a branch steam pipe 205, and a steam nozzle 206. The motor I 201 is installed on one side of the lifting frame 15, and the output end of the motor I 201 is connected to the drive shaft I 202. Two sets of limiting plates 203 are fixed on the drive shaft I 202. The limiting plates 203 are provided with multiple slots, and limiting columns 207 are provided in the slots. Anti-fouling plates I 209 are provided on both sides of the slots of the limiting plates 203. The anti-fouling plates I 209 are telescopic. The two ends of the vibrating roller 204 pass through the anti-fouling plates I 209 and are set in the slots on the limiting plates 203. The vibrating roller 204 is simultaneously connected to the limiting columns 205 and 206. 7. A sliding connection is used, with spring 208 sleeved on the limiting column 207. Spring 208 pushes out the vibrating roller 204. Multiple sets of branch steam pipes 205 are also provided between the two sets of limiting plates 203. Steam nozzles 206 are provided on the branch steam pipes 205, and steam nozzles 206 vent air to both sides. Motor I 201 controls the rotation of transmission shaft I 202, which drives the limiting plate 203 to rotate. The limiting plate 203 drives the branch steam pipes 205 and vibrating roller 204 to rotate. Spring 208 pushes out the vibrating roller 204 to enhance the vibrating effect. During the rotation, multiple sets of vibrating rollers 204 mechanically vibrate to cause micro-cracks in the oxide scale and peel it off. High-temperature steam is sprayed to both sides through steam nozzles 206. The high-temperature steam quickly penetrates into the oxide scale cracks, generating thermal expansion stress, which further loosens and peels off the oxide scale. The combination of vibrating and steam makes the dephosphorization process more efficient.

[0027] The purging mechanism 18 includes a connecting plate 301, a moving mechanism 302, a dirt-proof plate II 303, a support plate 304, and a swing mechanism 305. The connecting plate 301 is fixed on the lifting frame 15. The moving mechanism 302 is provided on the connecting plate 301. The dirt-proof plate II 303 is fixed inside the moving mechanism 302. The dirt-proof plate II 303 is provided with a telescopic protective plate. The dirt-proof plate II 303 is also fixed on the slag-blocking plate 21. The moving mechanism 302 is connected to the support plate 304. The swing mechanism 305 is provided on the support plate 304. The position of the support plate 304 is adjusted by the moving mechanism 302. The dirt-proof plate II 303 protects the transmission parts of the moving mechanism 302 to prevent oxide scale debris from entering the mechanism and causing it to jam. The support plate 304 drives the swing mechanism 305 to move. The swing mechanism 305 purifies the loose oxide scale and residual impurities on the strip steel 11. The purged impurities fall into the impurity box 19.

[0028] The moving mechanism 302 includes a motor II 1101, a transmission shaft II 1102, a gear 1103, a rack 1104, and a limiting groove 1105. The motor II 1101 is mounted on the connecting plate 301, and the output end of the motor II 1101 is connected to the transmission shaft II 1102. The transmission shaft II 1102 is provided with a gear 1103, which meshes with the rack 1104. The rack 1104 is disposed in the limiting groove 1105. 4. It is slidably connected to the limiting groove 1105, which is fixed on the connecting plate 301. A support plate 304 is provided between the two sets of racks 1104. The motor I 201 drives the transmission shaft II 1102 to rotate, which drives the gear 1103 to rotate. The gear 1103 meshes with the rack 1104, which drives the rack 1104 to move in the limiting groove 1105. The rack 1104 drives the support plate 304 to move.

[0029] The swing mechanism 305 includes a motor III 2101, a drive shaft III 2102, a swing bracket 2105, a branch pipe 2106, a jet nozzle 2107, and a main air pipe 2108. The motor III 2101 is mounted on the upper part of the support plate 304. The output end of the motor III 2101 is connected to the drive shaft III 2102. Two sets of connecting rods IV 2103 are provided on the drive shaft III 2102. Connecting rods IV 2103 are connected to connecting rod V 2104. Connecting rod V 2104 is connected to the swing bracket 2105. The swing bracket 2105 is rotatably connected to connecting rod V 2104. The swing bracket 2105 is also located at the lower part of the support plate 304 and is rotatably connected to the support plate 304. A branch pipe 2106 is provided inside the swing bracket 2105. The branch pipe 2106 is a flexible hose and has multiple jet nozzles. 2107, the bronchus 2106 connects to the main air pipe 2108, and the main air pipe 2108 is fixed on the support plate 304; the motor Ⅲ 2101 controls the rotation of the transmission shaft Ⅲ 2102, the transmission shaft Ⅲ 2102 drives the connecting rod Ⅳ 2103 to rotate, the connecting rod Ⅳ 2103 drives the connecting rod Ⅴ 2104 to rotate, the connecting rod Ⅴ 2104 drives the swing bracket 2105 to rotate, the swing bracket 2105 drives the bronchus 2106 to swing, the bronchus 2106 is made of flexible rubber material, which can achieve free swing at multiple angles while ensuring stable gas transmission, effectively avoiding equipment jamming caused by excessive pipeline rigidity, ensuring smooth and reliable system operation, the bronchus 2106 drives the jet head 2107 to swing, the jet head 2107 blows away the residual oxide scale and impurities on the surface of the strip steel 11 to complete the dephosphorization work.

[0030] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] In summary, the electronic or electrical components, including but not limited to motors and electric cylinders, are existing components that were custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this utility model.

[0032] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A descaling device for the annealed surface of stainless steel composite strip, comprising strip steel, frame, electric pusher cylinder, lifting frame, descaling roller, blowing mechanism, centering mechanism, and slag baffle plate; characterized in that... The electric pusher cylinder is installed on the upper part of the frame. The top end of the electric pusher cylinder is connected to the lifting frame. The lifting frame is slidably connected to the support column. The support column has four sets fixed in the middle of the frame. The lifting frame is equipped with a dephosphorization roller. The main steam pipe passes through the upper part of the frame and connects to the dephosphorization roller. The upper and lower sets of lifting frames are connected by a centering mechanism. The rear of the lifting frame is equipped with a purging mechanism. A slag baffle is provided between the purging mechanism and the dephosphorization roller. The slag baffle is also fixed on the lifting frame. An impurity box is provided at the bottom of the purging mechanism. The dephosphorization roller includes a motor I, a drive shaft I, a vibrating roller, branch steam pipes, and steam nozzles. The motor I is installed on one side of the lifting frame, and the output end of the motor I is connected to the drive shaft I. Two sets of limiting plates are fixed on the drive shaft I. The limiting plates have multiple slots, and limiting columns are installed in the slots. Anti-fouling plates I are provided on both sides of the slots of the limiting plates. The anti-fouling plates I are telescopic. The two ends of the vibrating roller pass through the anti-fouling plates I and are set in the slots of the limiting plates. The two ends of the vibrating roller are set in the slots of the limiting plates. The vibrating roller is also slidably connected to the limiting columns. A spring is sleeved on the limiting columns, and the vibrating roller is pushed out by the spring. Multiple sets of branch steam pipes are also provided between the two sets of limiting plates, and steam nozzles are installed on the branch steam pipes.

2. The stainless steel composite plate and strip annealing surface descaling device according to claim 1, characterized in that... The centering mechanism includes a connecting shaft, connecting rod I, connecting rod II, and connecting rod III. The connecting shaft is fixed on the frame, and connecting rod I is provided on the connecting shaft. Connecting rod I is rotatably connected to the connecting shaft. Connecting rod II is provided at the lower end of connecting rod I, and connecting rod III is provided at the upper end of connecting rod I. Connecting rod II is connected to the lower lifting frame, and connecting rod III is connected to the upper lifting frame.

3. The stainless steel composite plate and strip annealing surface descaling device according to claim 1, characterized in that... The purging mechanism includes a connecting plate, a moving mechanism, a dirt-proof plate II, a support plate, and a swinging mechanism. The connecting plate is fixed on the lifting frame, and the connecting plate is equipped with a moving mechanism. The dirt-proof plate II is fixed inside the moving mechanism, and a telescopic protective plate is provided on the dirt-proof plate II. The dirt-proof plate II is also fixed on the slag-blocking plate. The moving mechanism is connected to the support plate, and the support plate is equipped with a swinging mechanism.

4. The stainless steel composite plate and strip annealing surface descaling device according to claim 3, characterized in that... The swing mechanism includes a motor III, a transmission shaft III, a swing bracket, a branch pipe, jet nozzles, and a main air pipe. The motor III is mounted on the upper part of the support plate, and the output end of the motor III is connected to the transmission shaft III. The transmission shaft III is provided with two sets of connecting rods IV, which are connected to connecting rod V. Connecting rod V is connected to the swing bracket, and the swing bracket is rotatably connected to connecting rod V. The swing bracket is also located at the lower part of the support plate and is rotatably connected to the support plate. The swing bracket is provided with a branch pipe, which is a flexible hose. Multiple jet nozzles are provided on the branch pipe, which is connected to the main air pipe. The main air pipe is fixed on the support plate.

5. A descaling device for the annealing surface of stainless steel composite plate and strip according to claim 3, characterized in that... The moving mechanism includes a motor II, a transmission shaft II, a gear, a rack, and a limiting groove. The motor II is mounted on a connecting plate, and the output end of the motor II is connected to the transmission shaft II. The transmission shaft II is equipped with a gear that meshes with the rack. The rack is located in the limiting groove and is slidably connected to the limiting groove. The limiting groove is fixed on the connecting plate, and a support plate is provided between the two sets of racks.

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