Steel slag hot decomposing roller with wear-resistant tooth sleeve head

CN122912952APending Publication Date: 2026-10-16YANCHENG LIANXIN IRON & STEEL CO LTD
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Patent Information

Application Number
CN202611414703.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-09-12
Publication Date
2026-10-16

AI Technical Summary

Technical Problem

目前国内钢厂已全面普及热闷渣处理生产线,碾压车的运行稳定性与配件寿命,直接影响整条生产线的生产效率与生产成本

Benefits of technology

(1)本发明中,耐磨方格与耐磨齿套通过焊接,之后再进行堆焊耐磨层的堆焊,利用耐磨方格的网格结构锁定堆焊耐磨层,提高了堆焊耐磨层的强度,提高堆焊耐磨层高温工况下的耐磨程度,大大降低了堆焊耐磨层的磨损,避免堆焊耐磨层脱落。

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Abstract

The present application relates to steel slag treatment equipment technical field, disclose a kind of wear-resistant tooth sleeve head's steel slag hot sweating is rolled with car, including shell, feed chute and discharge chute are set in shell, two groups of sliding platform are slidably installed in the shell, two groups of sliding platform are rotatably installed with rotating roller and one of the group of sliding platform is fixedly installed with first motor for driving rotating roller rotation, rotating roller is provided with multiple rows of wear-resistant tooth sleeve, each row of wear-resistant tooth sleeve is provided with multiple groups, wear-resistant tooth sleeve end is fixedly installed with wear-resistant square, wear-resistant square and four sides of wear-resistant tooth sleeve are provided with hardfacing wear-resistant layer, the end of shell bottom side wall away from discharge chute is set as arc shape for wear-resistant tooth sleeve cooperation use.The beneficial effects of the present application: wear-resistant square grid structure is used to lock hardfacing wear-resistant layer, improve the strength of hardfacing wear-resistant layer, improve the wear resistance of hardfacing wear-resistant layer under high temperature working condition.
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Description

Technical Field

[0001] This invention relates to the field of steel slag processing equipment technology, specifically to a steel slag hot quenching rolling mill equipped with a wear-resistant toothed sleeve. Background Technology

[0002] Hot quenching of steel slag is a crucial step in the resource recovery of steel slag from steelmaking. The hot quenching slag compactor is the core specialized equipment, primarily used for rolling, compacting, and crushing high-temperature hot quenching slag, reducing its volume and ensuring proper subsequent transportation, screening, and resource recovery. Currently, hot quenching slag processing production lines are widely used in domestic steel mills. The operational stability of the compactor and the lifespan of its components directly impact the overall production efficiency and costs of the entire line.

[0003] Wear-resistant gear sleeves are core vulnerable parts that come into direct contact with high-temperature steel slag in hot slag rolling mills. Existing wear-resistant gear sleeves generally have a wear-resistant layer welded onto their surface. However, since the surface of the wear-resistant gear sleeve has no adhesion points and lacks a support structure for the wear-resistant layer, the support for the wear-resistant layer is relatively weak. Consequently, the wear-resistant layer is prone to falling off and has weak adhesion under high-temperature operating conditions, affecting the use of the equipment and reducing its stability. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a device for steel slag treatment that achieves high stability in use.

[0005] The objective of this invention can be achieved through the following technical solutions: A steel slag hot quenching rolling mill equipped with wear-resistant toothed sleeves includes a housing with a feed chute and a discharge chute. Two sets of slides are slidably installed inside the housing, and a rotating roller is rotatably mounted on both sets of slides. A first motor that drives the rotating roller is fixedly installed on one set of slides. Multiple rows of wear-resistant toothed sleeves are arranged in a circumferential array around the rotating roller on the rotating roller. Multiple sets of wear-resistant toothed sleeves are arranged in each row. Wear-resistant squares are fixedly installed at the ends of the wear-resistant toothed sleeves. Wear-resistant layers are welded onto the wear-resistant squares and the four sides of the wear-resistant toothed sleeves. The bottom sidewall of the housing away from the discharge chute is set into an arc shape to cooperate with the wear-resistant toothed sleeves.

[0006] As a further embodiment of the present invention: two sets of side plates are fixedly installed inside the housing, and the wear-resistant toothed sleeve is located between the two sets of side plates, with one end of the side plate fitting against the arc-shaped section of the bottom side wall of the housing.

[0007] As a further embodiment of the present invention: two sets of guide rails are fixedly installed inside the housing, the slide is slidably installed on the guide rails, and two sets of servo modules that drive the corresponding slide to move are provided inside the housing.

[0008] As a further embodiment of the present invention: a mounting frame is fixedly installed at the bottom of the housing, a lifting plate is fixedly installed on the mounting frame, and multiple sets of spaced limiting plates are provided on the lifting plate. The limiting plates penetrate the bottom sidewall of the housing and are in a sealed sliding connection with the bottom of the housing.

[0009] As a further aspect of the present invention: multiple sets of spaced fixed plates are fixedly installed on the lifting plate, and the limiting plate is fixedly installed on the fixed plate by fixing screws.

[0010] As a further aspect of the present invention: multiple sets of rotating shafts are rotatably installed inside the housing, spaced apart from the wear-resistant toothed sleeves. A baffle plate is fixedly installed on the rotating shaft. A groove is provided at the end of the baffle plate away from the rotating shaft for the limiting plate to extend into. When the baffle plate is in a vertical state, there is a gap between the bottom of the baffle plate and the inner bottom surface of the housing. A second motor is fixedly installed on the housing to drive the multiple sets of rotating shafts to rotate synchronously.

[0011] As a further aspect of the present invention: the second motor is fixedly installed on the outer side of the housing, the output shaft of the second motor is fixedly connected to a power shaft, and multiple sets of second bevel gears are fixedly installed on the power shaft. The shaft extends out of the housing and the second bevel gear meshes with the first bevel gear fixedly installed at the end of the shaft.

[0012] As a further embodiment of the present invention: multiple sets of substrates are slidably mounted on the side plate, the substrates are in contact with each other, the substrates penetrate the side plate, two sets of support plates are fixedly installed inside the housing, and multiple sets of springs corresponding to the substrates are fixedly installed on the support plates. The ends of the springs away from the substrates are fixedly connected to the corresponding substrates, and the ends of the substrates away from the support plates abut against the outermost shielding plate.

[0013] As a further aspect of the present invention: a slot is provided at one end of the substrate near the contact of the shielding plate, and a sealing plate is fixedly installed at the ends of the two sets of shielding plates in contact with the substrate. The sealing plate is located in the slot, and one side of the sealing plate is flush with the side of the substrate.

[0014] As a further embodiment of the present invention: a second electric telescopic rod is fixedly installed on the arc-shaped section of the side plate, and a push plate is fixedly installed on the output end of the second electric telescopic rod.

[0015] The beneficial effects of this invention are: (1) In this invention, the wear-resistant grid and the wear-resistant tooth sleeve are welded together, and then the wear-resistant layer is welded. The grid structure of the wear-resistant grid is used to lock the welded wear-resistant layer, which improves the strength of the welded wear-resistant layer, improves the wear resistance of the welded wear-resistant layer under high temperature conditions, greatly reduces the wear of the welded wear-resistant layer, and avoids the welded wear-resistant layer from falling off.

[0016] (2) In this invention, when the rotating roller drives the wear-resistant toothed sleeve to rotate and push the steel slag to move, the presence of the limiting plate will block and jam the steel slag, restricting the steel slag between the welded wear-resistant layer and the limiting plate. The welded wear-resistant layer can effectively bite the steel slag, fully realize impact, splitting and squeezing crushing, reduce the slippage and escape of steel slag, improve the success rate of crushing large pieces of steel slag, and effectively improve the crushing efficiency and crushing effect of steel slag.

[0017] (3) In this invention, the rotating shaft drives the baffle plate to rotate back and forth. Since all the steel slag is located between the baffle plates and the moving path of the welded wear-resistant layer is located between the two sets of baffle plates, when the baffle plate swings back and forth, it can push the steel slag to the middle position onto the moving trajectory of the welded wear-resistant layer, push the steel slag on both sides to the middle and gather it, so that the steel slag is forced into the rolling path of the welded wear-resistant layer, eliminating the edge leakage and dead corner, and all the steel slag can be crushed by roller pressing, reducing the residue of uncrushed large pieces of steel slag, and further improving the crushing effect of steel slag.

[0018] (4) In this invention, the end of the substrate and the hole of the shielding plate are blocked by the sealing plate. Thus, the entrance of the area between the outermost shielding plate and the side plate can be sealed by multiple sets of substrates and sealing plates, so as to prevent steel slag from entering the area between the shielding plate and the side plate. Subsequently, the steel slag at this position can be pushed to the inner position by the second electric telescopic rod to continue to participate in the subsequent crushing operation, further improving the overall crushing effect of steel slag. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the shell in this invention.

[0022] Figure 3 This is a schematic diagram of the rotating roller in this invention.

[0023] Figure 4 This is a schematic diagram of the wear-resistant gear sleeve in this invention.

[0024] Figure 5 This is a schematic diagram of the mounting bracket in this invention.

[0025] Figure 6 This is a left view of the mounting bracket in this invention.

[0026] Figure 7 This is a schematic diagram of the side plate structure in this invention.

[0027] Figure 8 This is a schematic diagram of the substrate structure in this invention.

[0028] In the diagram: 1. Housing; 2. Feed chute; 3. Discharge chute; 4. Guide rail; 5. Slide table; 6. Servo module; 7. Rotating roller; 8. Wear-resistant gear sleeve; 9. Wear-resistant grid; 10. Wear-resistant overlay layer; 11. Mounting bracket; 12. First electric telescopic rod; 13. Lifting plate; 14. Fixing plate; 15. Limiting plate; 16. First motor; 17. Side plate; 18. Rotating shaft; 19. Baffle plate; 20. First bevel gear; 21. Second motor; 22. Power shaft; 23. Second bevel gear; 24. Support plate; 25. Spring; 26. Base plate; 27. Sealing plate; 28. Slot; 29. ​​Second electric telescopic rod; 30. Push plate. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-8 As shown, this invention is a steel slag hot quenching rolling mill with wear-resistant toothed sleeves, comprising a housing 1, a feed chute 2 and a discharge chute 3 on the housing 1, two sets of sliding tables 5 slidably installed inside the housing 1, two sets of guide rails 4 fixedly installed inside the housing 1, the sliding tables 5 slidably mounted on the guide rails 4, two sets of servo modules 6 installed inside the housing 1 to drive the corresponding sliding tables 5 to move, the two sets of sliding tables 5 jointly rotating and mounting rotating rollers 7, and a first motor 16 fixedly mounted on one set of sliding tables 5 to drive the rotating rollers 7 to rotate, the rotating rollers 7 being provided with... Multiple rows of wear-resistant toothed sleeves 8 are arranged in a circumferential array around the rotating roller 7. Each row of wear-resistant toothed sleeves 8 is provided with multiple sets. Wear-resistant squares 9 are fixedly installed at the ends of the wear-resistant toothed sleeves 8. Wear-resistant layers 10 are welded on the four sides of the wear-resistant squares 9 and the wear-resistant toothed sleeves 8. The end of the bottom side wall of the housing 1 away from the discharge chute 3 is set as an arc shape to cooperate with the wear-resistant toothed sleeves 8. Two sets of side plates 17 are fixedly installed inside the housing 1. The wear-resistant toothed sleeves 8 are located between the two sets of side plates 17. One end of the side plate 17 is attached to the arc-shaped section of the bottom side wall of the housing 1.

[0031] In practical application, steel slag is conveyed into the housing 1 through the feed chute 2. The steel slag falls between two sets of limiting plates 15. Then, the first motor 16 drives the rotating roller 7 to rotate through the reducer. The rotating roller 7 drives the wear-resistant toothed sleeve 8 to rotate. At the same time, the servo module 6 drives the slide table 5 to move back and forth. The slide table 5 drives the rotating roller 7 to move. When the rotating roller 7 rotates, the wear-resistant toothed sleeve 8 and the wear-resistant overlay 10 on it will push the steel slag in the housing 1 to move. When the wear-resistant overlay 10 approaches the bottom surface of the housing 1, the wear-resistant overlay 10 will squeeze the steel slag against the bottom surface of the housing 1, so that large pieces of steel slag are crushed. Continuous crushing is achieved by changing the rotation direction and movement direction of the rotating roller 7. The operation involves using the arc-shaped section at the bottom of the shell 1 to push the steel slag outward by the welded wear-resistant layer 10, avoiding crushing dead corners and preventing a large amount of steel slag residue. During subsequent crushing, the steel slag is redistributed. After crushing, the welded wear-resistant layer 10 pushes the steel slag towards the discharge chute 3 and discharges it from the shell 1. The wear-resistant grid 9 and the wear-resistant tooth sleeve 8 are welded together, and then the welded wear-resistant layer 10 is welded on. The grid structure of the wear-resistant grid 9 locks the welded wear-resistant layer 10, which improves the strength of the welded wear-resistant layer 10, enhances its wear resistance under high-temperature conditions, greatly reduces wear on the welded wear-resistant layer 10, and prevents the welded wear-resistant layer 10 from falling off.

[0032] Please see Figure 2 , Figure 5 , Figure 6 As shown, the present invention is a steel slag hot quenching rolling mill with wear-resistant toothed sleeve head. A mounting frame 11 is fixedly installed at the bottom of the housing 1. A lifting plate 13 is fixedly installed on the mounting frame 11. Multiple sets of spaced limiting plates 15 are provided on the lifting plate 13. The limiting plates 15 penetrate the bottom side wall of the housing 1 and are slidably and sealed to the bottom of the housing 1.

[0033] Specifically, multiple sets of spaced fixed plates 14 are fixedly installed on the lifting plate 13, and the limiting plate 15 is fixedly installed on the fixed plate 14 by fixing screws.

[0034] In practical application, when crushing steel slag, the first electric telescopic rod 12 drives the lifting plate 13 to move upward, causing the limiting plate 15 to enter the housing 1 upward. The top of the limiting plate 15 is spaced from the lowest position of the welded wear-resistant layer 10. When the rotating roller 7 drives the wear-resistant toothed sleeve 8 to rotate and push the steel slag to move, the presence of the limiting plate 15 will block and jam the steel slag, restricting it between the welded wear-resistant layer 10 and the limiting plate 15. The welded wear-resistant layer 10 can effectively hold the steel slag, fully realizing impact, splitting, and crushing, reducing steel slag slippage and escape, improving the success rate of crushing large pieces of steel slag, and effectively improving the crushing efficiency and crushing effect of steel slag. After subsequent crushing, the limiting plate 15 moves downward so that its upper surface is flush with the inner bottom surface of the housing 1, avoiding affecting the movement and discharge of steel slag.

[0035] Please see Figure 2 , Figure 7 , Figure 8 As shown, the present invention is a steel slag hot quenching rolling mill equipped with wear-resistant toothed sleeves. Multiple sets of rotating shafts 18 are rotatably installed inside the housing 1, which are spaced apart from the wear-resistant toothed sleeves 8. A baffle plate 19 is fixedly installed on the rotating shaft 18. A groove is opened at the end of the baffle plate 19 away from the rotating shaft 18 for the limiting plate 15 to extend into. When the baffle plate 19 is in a vertical state, there is a gap between the bottom of the baffle plate 19 and the inner bottom surface of the housing 1. A second motor 21 is fixedly installed on the housing 1 to drive the multiple sets of rotating shafts 18 to rotate synchronously.

[0036] Specifically, the second motor 21 is fixedly installed on the outer side of the housing 1. The output shaft of the second motor 21 is fixedly connected to the power shaft 22. Multiple sets of second bevel gears 23 are fixedly installed on the power shaft 22. The rotating shaft 18 extends out of the housing 1 and the second bevel gears 23 mesh with the first bevel gear 20 fixedly installed at the end of the rotating shaft 18.

[0037] In practical application, after the steel slag enters the bottom of the shell 1, it is located between the two outermost sets of baffles 19. When the rotating roller 7 moves and crushes, the second motor 21 drives the power shaft 22 to rotate. The power shaft 22 drives multiple sets of rotating shafts 18 to rotate synchronously through the meshing first bevel gear 20 and second bevel gear 23. The rotating shafts 18 drive the baffles 19 to rotate back and forth. Since the steel slag is entirely located between the baffles 19 and the movement path of the welded wear-resistant layer 10 is located between the two sets of baffles 19, when the baffles 19 swing back and forth, they can push the steel slag towards the middle position onto the movement trajectory of the welded wear-resistant layer 10, thus removing the steel slag from the two edges. The steel slag is pushed and gathered towards the center, forcing it into the crushing path of the welded wear-resistant layer 10. This eliminates dead corners where the steel slag is missed during crushing, ensuring that all steel slag is crushed by rollers. This reduces the amount of large, uncrushed steel slag remaining and further improves the crushing effect. At the same time, multiple sets of baffles 19 swing synchronously to re-distribute the steel slag, resulting in a more uniform distribution of the steel slag layer inside the shell 1. This avoids excessive local stockpiling, reduces the number of reciprocating crushing cycles of the rotating rollers 7, and improves the equipment's processing efficiency. Furthermore, when discharging the steel slag, all of it can be pushed into the movement trajectory of the welded wear-resistant layer 10, ensuring that all steel slag can be discharged and greatly reducing the amount of steel slag remaining in the shell 1.

[0038] Please see Figure 2 , Figure 7 , Figure 8 As shown, the present invention is a steel slag hot quenching rolling mill with wear-resistant toothed sleeve head. Multiple sets of base plates 26 are slidably installed on the side plate 17. The base plates 26 are in contact with each other and penetrate through the side plate 17. Two sets of support plates 24 are fixedly installed inside the housing 1. Multiple sets of springs 25 corresponding to the base plates 26 are fixedly installed on the support plates 24. The end of the spring 25 away from the base plate 26 is fixedly connected to the corresponding base plate 26. The end of the base plate 26 away from the support plate 24 abuts against the outermost baffle plate 19.

[0039] Specifically, a slot 28 is provided at the end of the substrate 26 that is in contact with the shielding plate 19, and a sealing plate 27 is fixedly installed at the ends of the two sets of shielding plates 19 that are in contact with the substrate 26. The sealing plate 27 is located in the slot 28, and one side of the sealing plate 27 is flush with the side of the substrate 26.

[0040] Specifically, a second electric telescopic rod 29 is fixedly installed on the arc-shaped section of the side plate 17, and a push plate 30 is fixedly installed at the output end of the second electric telescopic rod 29.

[0041] In practical application, the rotation of the rotating roller 7 causes the welded wear-resistant layer 10 to move the steel slag. When the steel slag moves to the arc-shaped section at the bottom of the shell 1, it will slide down again, thus the steel slag may slide into the area between the outermost baffle plate 19 and the side plate 17. When the baffle plate 19 swings, it will push the substrate 26 to move synchronously, causing the corresponding spring 25 to be compressed or released. Under the action of the spring 25, the end of the substrate 26 is kept in contact with the baffle plate 19. When the baffle plate 19 is tilted, the end of the substrate 26 cannot fully contact the baffle plate 19. The sealing plate 27 controls the end of the substrate 26 and the baffle plate 17. The holes flowing out of the baffle 19 are blocked, and the entrance between the outermost baffle 19 and the side plate 17 can be sealed off by multiple sets of base plates 26 and sealing plates 27, preventing steel slag from entering the area between the baffle 19 and the side plate 17. Subsequently, the push plate 30 is moved by the second electric telescopic rod 29 to push the steel slag at this position to the inner position to continue to participate in the subsequent crushing operation, further improving the overall crushing effect of the steel slag. At the same time, when a large amount of steel slag accumulates in the arc section of the shell 1, the push plate 30 can push the steel slag to move and redistribute the steel slag again, further improving the subsequent crushing efficiency.

Claims

1. A steel slag hot quenching rolling mill equipped with a wear-resistant toothed sleeve, comprising a housing (1), wherein a feed chute (2) and a discharge chute (3) are provided on the housing (1), characterized in that, Two sets of slide tables (5) are slidably installed inside the housing (1). The two sets of slide tables (5) are rotatably mounted with a rotating roller (7). A first motor (16) that drives the rotating roller (7) is fixedly installed on one of the slide tables (5). Multiple rows of wear-resistant tooth sleeves (8) are arranged in a circular array around the rotating roller (7). Multiple sets of wear-resistant tooth sleeves (8) are arranged in each row. Wear-resistant squares (9) are fixedly installed at the ends of the wear-resistant tooth sleeves (8). Wear-resistant layers (10) are welded on the four sides of the wear-resistant squares (9) and the wear-resistant tooth sleeves (8). The bottom side wall of the housing (1) away from the discharge chute (3) is set as an arc shape to cooperate with the wear-resistant tooth sleeves (8).

2. A steel slag hot quenching rolling mill with wear-resistant toothed sleeves according to claim 1, characterized in that, Two sets of side plates (17) are fixedly installed inside the housing (1). The wear-resistant toothed sleeve (8) is located between the two sets of side plates (17). One end of the side plate (17) is fitted with the arc-shaped section of the bottom side wall of the housing (1).

3. A steel slag hot quenching rolling mill with wear-resistant toothed sleeves as described in claim 1, characterized in that, Two sets of guide rails (4) are fixedly installed inside the housing (1), and the slide (5) is slidably installed on the guide rails (4). Two sets of servo modules (6) that drive the corresponding slide (5) to move are provided inside the housing (1).

4. A steel slag hot quenching rolling mill with wear-resistant toothed sleeves as described in claim 1, characterized in that, The bottom of the housing (1) is fixedly installed with a mounting bracket (11), and a lifting plate (13) is fixedly installed on the mounting bracket (11). Multiple sets of spaced limiting plates (15) are provided on the lifting plate (13). The limiting plates (15) penetrate the bottom side wall of the housing (1) and are in a sealed sliding connection with the bottom of the housing (1).

5. A steel slag hot quenching rolling mill with wear-resistant toothed sleeves according to claim 4, characterized in that, Multiple sets of spaced fixed plates (14) are fixedly installed on the lifting plate (13), and the limiting plate (15) is fixedly installed on the fixed plate (14) by fixing screws.

6. A steel slag hot quenching rolling mill with wear-resistant toothed sleeves according to claim 2, characterized in that, Multiple sets of rotating shafts (18) are rotatably installed inside the housing (1) and spaced apart from the wear-resistant toothed sleeve (8). A baffle plate (19) is fixedly installed on the rotating shaft (18). A groove for the limiting plate (15) to extend into is opened at the end of the baffle plate (19) away from the rotating shaft (18). When the baffle plate (19) is in a vertical state, there is a gap between the bottom of the baffle plate (19) and the inner bottom surface of the housing (1). A second motor (21) that drives the multiple sets of rotating shafts (18) to rotate synchronously is fixedly installed on the housing (1).

7. A steel slag hot quenching rolling mill with wear-resistant toothed sleeves according to claim 6, characterized in that, The second motor (21) is fixedly installed on the outer side of the housing (1). The output shaft of the second motor (21) is fixedly connected to the power shaft (22). Multiple sets of second bevel gears (23) are fixedly installed on the power shaft (22). The rotating shaft (18) extends out of the housing (1) and the second bevel gear (23) meshes with the first bevel gear (20) fixedly installed at the end of the rotating shaft (18).

8. A steel slag hot quenching rolling mill with wear-resistant toothed sleeves according to claim 6, characterized in that, Multiple sets of base plates (26) are slidably installed on the side plate (17). The base plates (26) are in contact with each other and penetrate the side plate (17). Two sets of support plates (24) are fixedly installed inside the housing (1). Multiple sets of springs (25) corresponding to the base plates (26) are fixedly installed on the support plates (24). The end of the spring (25) away from the base plate (26) is fixedly connected to the corresponding base plate (26). The end of the base plate (26) away from the support plate (24) abuts against the outermost shielding plate (19).

9. A steel slag hot quenching rolling mill with wear-resistant toothed sleeves according to claim 8, characterized in that, The substrate (26) has a slot (28) at one end that is in contact with the shield (19). The ends of the two sets of shields (19) that are in contact with the substrate (26) are fixedly installed with a sealing plate (27). The sealing plate (27) is located in the slot (28), and one side of the sealing plate (27) is flush with the side of the substrate (26).

10. A steel slag hot quenching rolling mill with wear-resistant toothed sleeves according to claim 9, characterized in that, A second electric telescopic rod (29) is fixedly installed on the arc-shaped section of the side plate (17), and a push plate (30) is fixedly installed at the output end of the second electric telescopic rod (29).