A device for removing slag buildup along the edge of a steel ladle

Abstract

A device for removing slag buildup along the edge of a steel ladle includes a lifting section, a rotating section, an opening and closing section, an inner slag-shoveling section, and an outer slag-receiving section. The lifting section is mounted on the ground. The rotating section is mounted on the lifting section. The opening and closing section is mounted on the rotating section. Both the inner slag-shoveling section and the outer slag-receiving section are mounted on the opening and closing section. This invention improves the efficiency of cleaning slag adhering to the edge of a steel ladle.

Description

Technical Field

[0001] This utility model relates to a slag removal device, and in particular to a device capable of removing steel slag adhering to the edge of the top of a steel ladle, belonging to the technical field of slag removal equipment for the top edge of a steel ladle. Background Technology

[0002] The ladle is the main equipment for holding molten steel in steelmaking. It is used repeatedly in multiple stages of steelmaking, from converter tapping, hoisting, refining, continuous casting, to hot repair. During converter tapping, molten steel slag adheres to the ladle rim, forming a large amount of solid slag after cooling. This slag hinders the ladle from entering the refining stage. Before the ladle is filled with molten steel and enters the refining station, the accumulated slag needs to be cleaned online. Currently, overhead cranes are used to lift and scraper the slag before it enters the refining station. However, this method is time-consuming, inefficient, and disrupts normal production. Furthermore, slag falling during cleaning can contaminate the molten steel inside the ladle, affecting its purity. Therefore, a more efficient device is needed to clean the slag adhering to the ladle rim. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for removing slag accumulation on the edge of a ladle, which can efficiently clean the slag adhering to the top edge of the ladle.

[0004] The problem described in this utility model is solved by the following technical solution: A device for removing slag accumulation along the edge of a steel ladle includes a lifting section, a rotating section, an opening and closing section, an inner slag-shoveling section, and an outer slag-receiving section; the lifting section is disposed on the ground; the rotating section is disposed on the lifting section; the opening and closing section is disposed on the rotating section; the inner slag-shoveling section and the outer slag-receiving section are both disposed on the opening and closing section.

[0005] The aforementioned device for removing slag accumulation along the edge of a steel ladle includes a lifting mechanism comprising a fixed top plate, guide rods, a winch, and a lifting plate. The four corners of the fixed top plate are mounted on the ground via L-shaped brackets. Each of the four corners of the fixed top plate has a vertical guide hole, and a guide rod passes through each guide hole. The four corners of the top surface of the lifting plate are connected to the bottom ends of the four guide rods. The winch is mounted on the top surface of the fixed top plate, and the end of its pull rope is connected to the top surface of the lifting plate.

[0006] The aforementioned device for removing slag accumulation along the edge of a steel ladle comprises a rotating part including a rotary motor, a bottom square plate, an upper turntable, a lower turntable, a long cylinder, an insert rod, an upper circular disc, a lower circular disc, and a vertical circular rod. Supports are connected between the four corners of the bottom end face of the lifting plate and the four corners of the top end face of the bottom square plate. The rotary motor is located on the bottom end face of the lifting plate. A hole is provided in the center of the bottom square plate, and a first circular rod passes through the hole. The top end of the first circular rod is provided with the upper turntable, and the bottom end of the first circular rod is provided with the lower turntable. The end of the output shaft of the rotary motor is connected to the center of the top end face of the upper turntable. One end of the long cylinder is connected to the circumferential side wall of the lower turntable. The insert rod is inserted into the interior of the long cylinder. A vertical circular hole is provided at the end of the insert rod away from the long cylinder, and a second circular rod passes through the hole. The top end of the second circular rod is provided with the upper circular disc, and the bottom end of the second circular rod is provided with the lower circular disc. The vertical circular rod is located at the center of the bottom end face of the lower circular disc.

[0007] The aforementioned device for removing slag accumulation along the edge of a steel ladle comprises an opening and closing section including a crossbeam, horizontal rods, a double-headed cylinder, an outer arc-shaped plate, and an inner arc-shaped plate. The bottom end of the vertical round rod is connected to the center of the top surface of the crossbeam. There are two horizontal rods, with their centers connected to both ends of the crossbeam, and their centerlines parallel. The double-headed cylinder is located on the bottom surface of the crossbeam, and the axis of the piston rod of the double-headed cylinder is parallel to the centerline of the horizontal rods. Both the outer and inner arc-shaped plates have two guide holes at their top ends. The same end of each horizontal rod passes through one of the two guide holes in the outer arc-shaped plate, and the other end of each horizontal rod passes through one of the two guide holes in the inner arc-shaped plate. A spring connects the crossbeam to the outer arc-shaped plate and another spring connects the crossbeam to the inner arc-shaped plate.

[0008] The aforementioned device for removing slag accumulation along the edge of a steel ladle includes an inner slag receiving plate, a hydraulic cylinder, a shovel plate, a slide rail, and an inner baffle. The inner slag receiving plate is located at the bottom end of the inner arc-shaped plate near the outer arc-shaped plate. Inner baffles are provided at both ends of the inner slag receiving plate. The end face of the inner slag receiving plate near the outer arc-shaped plate is a convex arc-shaped surface. The slide rail is vertically mounted on the side wall of the inner arc-shaped plate near the outer arc-shaped plate, and the shovel plate is provided with a sliding groove, allowing the shovel plate to slide on the slide rail. The hydraulic cylinder is located at the top end of the side wall of the inner arc-shaped plate near the outer arc-shaped plate, and the end of its piston rod is connected to the top end of the shovel plate via a connecting rod.

[0009] The aforementioned device for removing slag accumulation along the edge of a steel ladle includes an outer slag receiving section comprising an annular frame, an outer baffle, and a slag receiving hopper. The annular frame is located at the bottom end of the outer arc-shaped plate near the inner arc-shaped plate. The slag receiving hopper is located at the bottom end of the annular frame. There are two outer baffles, which are located on both sides of the top surface of the annular frame.

[0010] This invention uses a lifting mechanism to move the remaining parts downwards, thus smoothly contacting the slag adhering to the top of the ladle; through the cooperation of the rotating and opening / closing parts, the inner slag-shoveling part and the outer slag-receiving part can smoothly press against the ladle and clean the upper edge of the ladle; the function of the inner slag-shoveling part is to remove the adhering slag; the function of the outer slag-receiving part is to collect the slag that has been shoveled off. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partially enlarged structural diagram of component A of this utility model.

[0012] The following are the labels in the diagram: 1. Fixed top plate, 2. Guide rod, 3. Winch, 4. Lifting plate, 5. Rotary motor, 6. Bottom square plate, 7. Upper turntable, 8. Lower turntable, 9. Long cylinder, 10. Insert rod, 11. Upper disc, 12. Vertical round rod, 13. Crossbeam, 14. Horizontal rod, 15. Double-headed cylinder, 16. Outer arc plate, 17. Inner arc plate, 18. Inner slag receiving plate, 19. Hydraulic cylinder, 20. Shovel plate, 21. Inner side baffle, 22. Annular frame, 23. Outer side baffle, 24. Slag receiving hopper. Detailed Implementation

[0013] See Figure 1 and Figure 2 This utility model includes a lifting part, a rotating part, an opening and closing part, an inner slag-shoveling part, and an outer slag-receiving part. The lifting part is located on the ground and can drive the other parts to rise and fall, thereby allowing the inner slag-shoveling part and the outer slag-receiving part to smoothly press against the side wall of the ladle. The rotating part is located on the lifting part and can drive the inner slag-shoveling part and the outer slag-receiving part to move circumferentially along the upper edge of the ladle to clean the slag adhering along the upper edge. The opening and closing part is located on the rotating part and both the inner slag-shoveling part and the outer slag-receiving part are located on the opening and closing part. The opening and closing part allows the inner slag-shoveling part and the outer slag-receiving part to smoothly clamp the side wall of the ladle, and the inner slag-shoveling part removes the slag adhering to the upper edge of the ladle. The cleaned-off slag is pushed into the outer slag-receiving part.

[0014] The lifting mechanism includes a fixed top plate 1, guide rods 2, a winch 3, and a lifting plate 4. The four corners of the fixed top plate 1 are mounted on the ground via L-shaped brackets. Each of the four corners of the fixed top plate 1 has a vertical guide hole, and a guide rod 2 passes through each guide hole. The four corners of the top surface of the lifting plate 4 are connected to the bottom ends of the four guide rods 2 respectively. The presence of the guide rods 2 provides a guarantee for the lifting of the lifting plate 4, ensuring its reliable lifting. The winch 3 is mounted on the top surface of the fixed top plate 1, and the end of its pull rope is connected to the top surface of the lifting plate 4. The winch drives the lifting plate 4 to rise and fall by winding and unwinding the wire rope.

[0015] The rotating part includes a rotary motor 5, a bottom square plate 6, an upper turntable 7, a lower turntable 8, a long cylinder 9, a rod 10, an upper circular plate 11, a lower circular plate 12, and a vertical circular rod 12. Supports are connected between the four corners of the bottom end face of the lifting plate 4 and the four corners of the top end face of the bottom square plate 6. The rotary motor 5 is located on the bottom end face of the lifting plate 4. A hole is provided in the center of the bottom square plate 6, and a first circular rod passes through the hole. The top end of the first circular rod is provided with the upper turntable 7, and the bottom end of the first circular rod is provided with the lower turntable 8. The end of the output shaft of the rotary motor 5 is connected to the center of the top end face of the upper turntable 7. The rotary motor 5 can drive the combination of the upper turntable, the first circular rod, and the lower turntable 8 to rotate, thereby driving the upper turntable 7, the lower circular plate 8, and the vertical circular rod 12. The long cylinder 9 and the insert rod 10 on the plate rotate synchronously, ultimately driving the opening and closing part, the inner slag-shoveling part, and the outer slag-receiving part to move circumferentially along the upper edge of the ladle; one end of the long cylinder 9 is connected to the circumferential side wall of the lower turntable 8; the insert rod 10 is inserted into the inside of the long cylinder 9; the length of the combination of the insert rod 10 and the long cylinder 9 can be varied; a vertical circular hole is provided at the end of the insert rod 10 away from the long cylinder 9, and a second circular rod is inserted through the circular hole. An upper circular plate 11 is provided at the top of the second circular rod, and a lower circular plate is provided at the bottom of the second circular rod; the vertical circular rod 12 is located at the center of the bottom end face of the lower circular plate; the combination of the second circular rod, the upper circular plate, the vertical circular rod 12, and the lower circular plate can rotate at the circular hole of the insert rod 10.

[0016] The opening and closing section includes a crossbeam 13, horizontal rods 14, a double-headed cylinder 15, an outer arc plate 16, and an inner arc plate 17. The bottom end of the vertical round rod 12 is connected to the center of the top surface of the crossbeam 13. There are two horizontal rods 14, and the centers of the two horizontal rods 14 are respectively connected to the two ends of the crossbeam 13, with the center lines of the two horizontal rods 14 being parallel. The double-headed cylinder 15 is located on the bottom surface of the crossbeam 13, and the axis of the piston rod of the double-headed cylinder 15 is parallel to the center line of the horizontal rod 14. The function of the double-headed cylinder 15 is to push the outer arc plate 16 and the inner arc plate 17 on both sides away from each other. Each of the two horizontal rods 14 has two guide holes at its top. The same end of each horizontal rod 14 passes through the two guide holes of the outer arc plate 16, and the other end of each horizontal rod 14 passes through the two guide holes of the inner arc plate 17. The horizontal rods 14 serve as guides to ensure that the outer arc plate 16 and the inner arc plate 17 can smoothly approach or move away from each other. A spring is connected between the crossbeam 13 and the outer arc plate 16, and a spring is connected between the crossbeam 13 and the inner arc plate 17. The function of the spring is to provide a force for the outer arc plate 16 and the inner arc plate 17 to approach each other, ensuring that the inner slag receiving plate 18 and the annular frame 22 can be tightly pressed against the inner and outer walls of the ladle, respectively.

[0017] The inner slag-shoveling section includes an inner slag-receiving plate 18, a hydraulic cylinder 19, a slag-shoveling plate 20, a slide rail, and an inner baffle 21; the inner slag-receiving plate 18 is located at the bottom end of the inner arc-shaped plate 17 near the outer arc-shaped plate 16; the function of the inner slag-receiving plate 18 is to ensure that the slag-shoveling plate 20 avoids slag sticking and falling into the ladle during the slag-shoveling process. Both ends of the inner slag receiving plate 18 are provided with inner side baffles 21; the end face of the inner slag receiving plate 18 near the outer arc plate 16 is a convex arc surface, which is to ensure that the surface of the inner slag receiving plate 18 in contact with the inner wall of the ladle fits the inner wall of the ladle more closely, and to prevent slag from passing through the gap between the inner slag receiving plate 18 and the inner wall of the ladle and falling into the ladle as much as possible; the slide rail is vertically set on the side wall of the inner arc plate 17 near the outer arc plate 16, and the shovel plate 20 is provided with a sliding groove, and the shovel plate 20 is slidably set on the slide rail through the sliding groove; the shovel plate 20 moves vertically under the guidance of the slide rail; the hydraulic cylinder 19 is set at the top of the side wall of the inner arc plate 17 near the outer arc plate 16, and the end of its piston rod is connected to the top of the shovel plate 20 through a connecting rod; the extension and retraction of the piston rod of the hydraulic cylinder 19 drives the shovel plate 20 to rise and fall vertically, thereby enabling the shovel plate 20 to shovel the sticky slag upward and shovel it into the slag receiving hopper 24 on the opposite side.

[0018] The external slag receiving section includes an annular frame 22, an outer baffle 23, and a slag receiving hopper 24. The annular frame 22 is located at the bottom end of the outer arc plate 16 near the inner arc plate 17. The slag receiving hopper 24 is located at the bottom end of the annular frame 22. There are two outer baffles 23, which are located on both sides of the top surface of the annular frame 22. The sticky slag shoveled off by the shovel plate 20 is poured into the slag receiving hopper 24 and collected to avoid contaminating the ladle car and the site environment.

[0019] Operating principle: Move the ladle directly below the device, aligning its axis as closely as possible with the axis of the lower turntable. The double-headed cylinder 15 actuates, moving the outer and inner arc-shaped plates away from each other. The winch then releases the wire rope, causing the inner slag-shoveling section and the outer slag-receiving section to descend until the vertical height of the slag-shoveling plate is below the lowest point of the slag adhesion. The double-headed cylinder 15 then resets, and the arc-shaped plates on both sides move closer together under the action of springs. This allows the inner slag-receiving plate 18 and the annular frame 22 to clamp the sidewall of the ladle. The rotary motor 5 is then started, moving the inner slag-shoveling section and the outer slag-receiving section along the upper edge of the ladle. The movement of the insertion rod 10 and the rotation of the vertical round rod 12 are adaptively adjusted to ensure that the inner slag-receiving plate 18 and the annular frame 22 are properly aligned. The frame 22 reliably clamps the side wall of the ladle. When the shovel plate 20 moves directly below the slag, the rotary motor 5 stops operating. Then, the hydraulic cylinder is activated, driving the shovel plate upward. The shovel plate lifts the slag upward and pushes it into the slag receiving hopper on the opposite side. Then, the hydraulic cylinder resets, and the rotary motor continues to operate. This process is repeated until all the slag is cleaned into the slag receiving hopper 24. Finally, the double-headed cylinder 15 operates, causing the arc plates on both sides to move away from each other, which in turn moves the inner slag receiving plates 18 and the annular frame 22 away from the ladle, no longer contacting it. Then, the winch 3 retracts the wire rope, and the inner slag receiving plates 18 and the annular frame 22 are pulled away from the ladle. The ladle is then removed, and the slag in the slag receiving hopper is cleaned, ready for the next ladle to be cleaned. The ladle slag cleaning operation is now complete.

Claims

1. A device for removing slag accumulation along the edge of a steel ladle, characterized in that: It includes a lifting section, a rotating section, an opening and closing section, an inner slag-shoveling section, and an outer slag-receiving section; the lifting section is located on the ground; the rotating section is located on the lifting section; the opening and closing section is located on the rotating section; the inner slag-shoveling section and the outer slag-receiving section are both located on the opening and closing section.

2. The device for removing slag accumulation on the edge of a steel ladle according to claim 1, characterized in that: The lifting mechanism includes a fixed top plate (1), guide rods (2), a winch (3), and a lifting plate (4). The four corners of the fixed top plate (1) are set on the ground by L-shaped brackets. Each of the four corners of the fixed top plate (1) is provided with a vertical guide hole, and a guide rod (2) is inserted into each guide hole. The four corners of the top surface of the lifting plate (4) are respectively connected to the bottom ends of the four guide rods (2). The winch (3) is set on the top surface of the fixed top plate (1), and the end of its pull rope is connected to the top surface of the lifting plate (4).

3. The device for removing slag accumulation along the edge of a steel ladle according to claim 2, characterized in that: The rotating part includes a rotary motor (5), a bottom square plate (6), an upper turntable (7), a lower turntable (8), a long cylinder (9), a plug rod (10), an upper disc (11), a lower disc, and a vertical round rod (12); the four corners of the bottom end face of the lifting plate (4) and the four corners of the top end face of the bottom square plate (6) are connected by brackets; the rotary motor (5) is set on the bottom end face of the lifting plate (4); a hole is set in the center of the bottom square plate (6), and a first round rod is inserted through the hole; the top end of the first round rod is set with the upper turntable (7), and the bottom end of the first round rod is set with the lower end of the first round rod. A lower turntable (8) is provided; the end of the output shaft of the rotary motor (5) is connected to the center of the top surface of the upper turntable (7); one end of the long cylinder (9) is connected to the circumferential side wall of the lower turntable (8); the insert rod (10) is inserted into the inside of the long cylinder (9); a vertical circular hole is provided at the end of the insert rod (10) away from the long cylinder (9), and a second round rod is inserted through the circular hole. The top of the second round rod is provided with an upper disc (11), and the bottom of the second round rod is provided with a lower disc; the vertical round rod (12) is located at the center of the bottom surface of the lower disc.

4. The device for removing slag accumulation on the edge of a steel ladle according to claim 3, characterized in that: The opening and closing part includes a crossbeam (13), horizontal rods (14), a double-headed cylinder (15), an outer arc plate (16), and an inner arc plate (17); the bottom end of the vertical round rod (12) is connected to the center of the top surface of the crossbeam (13); there are two horizontal rods (14), and the centers of the two horizontal rods (14) are respectively connected to the two ends of the crossbeam (13), and the center lines of the two horizontal rods (14) are parallel; the double-headed cylinder (15) is set on the bottom surface of the crossbeam (13), and the double-headed cylinder... (15) The centerline of the piston rod is parallel to the centerline of the horizontal rod (14); the top of the outer arc plate (16) and the inner arc plate (17) are provided with two guide holes, the same end of the two horizontal rods (14) passes through the two guide holes of the outer arc plate (16) respectively, and the other end of the two horizontal rods (14) passes through the two guide holes of the inner arc plate (17) respectively; a spring is connected between the crossbeam (13) and the outer arc plate (16), and a spring is connected between the crossbeam (13) and the inner arc plate (17).

5. The device for removing slag accumulation along the edge of a steel ladle according to claim 4, characterized in that: The inner slag-shoveling part includes an inner slag-receiving plate (18), a hydraulic cylinder (19), a shovel plate (20), a slide rail, and an inner side baffle (21); the inner slag-receiving plate (18) is located at the bottom end of the inner arc plate (17) near the outer arc plate (16); both ends of the inner slag-receiving plate (18) are provided with inner side baffles (21); the end face of the inner slag-receiving plate (18) near the outer arc plate (16) is an outwardly convex arc surface; the slide rail is vertically arranged on the side wall of the inner arc plate (17) near the outer arc plate (16), and the shovel plate (20) is provided with a sliding groove, and the shovel plate (20) is slidably arranged on the slide rail through the sliding groove; the hydraulic cylinder (19) is located at the top end of the side wall of the inner arc plate (17) near the outer arc plate (16), and the end of its piston rod is connected to the top end of the shovel plate (20) through a connecting rod.

6. The device for removing slag accumulation on the edge of a steel ladle according to claim 5, characterized in that: The external slag receiving part includes an annular frame (22), an outer baffle (23), and a slag receiving hopper (24); the annular frame (22) is located at the bottom end of the outer arc plate (16) near the inner arc plate (17); the slag receiving hopper (24) is located at the bottom end of the annular frame (22); there are two outer baffles (23), which are located on both sides of the top surface of the annular frame (22).

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