Steel ladle slag avoiding device

Abstract

The invention discloses a steel ladle slag-avoiding device which is used for conveying slag-avoiding steel plates to a steel ladle and comprises a steel coil, a discharging assembly, a cutting assembly and a hoisting assembly. A steel plate is coiled on the steel coil; the discharging assembly is arranged on the side face of the steel ladle and used for pulling the steel plate out of the steel coil to the specified length. The cutting assembly is arranged above the discharging assembly and used for cutting off the steel plate pulled out to the specified length, and the slag-avoiding steel plate is obtained. The hoisting assembly is arranged above the steel ladle and used for taking the slag-avoiding steel plate and releasing the slag-avoiding steel plate after the slag-avoiding steel plate moves from the waiting position to the working position so that the slag-avoiding steel plate can be transferred to the corresponding position of the steel ladle. Due to the fact that the distance between the waiting position and the working position is preset, the slag-avoiding steel plate can be accurately placed in the corresponding position of the steel ladle only by moving the hoisting assembly from the waiting position to the working position, the accuracy rate is high, and the slag-avoiding effect is good. And the operations are automatically carried out, so that the labor capacity and the safety risk of workers are reduced.

Description

Technical Field

[0001] The present application belongs to the field of RH steelmaking technology, and specifically relates to a ladle slag avoidance device. Background Art

[0002] As high-quality steel production demands increasingly stringent requirements for molten steel cleanliness and inclusions, RH vacuum furnaces are increasingly being used as a necessary smelting method. The RH method, or molten steel vacuum cycle degassing, is a steel refining process developed jointly by Ruhrstahl and Hereaeus in Germany. During the RH smelting process, preventing top slag from the ladle from entering the RH vacuum chamber and adversely affecting the cleanliness of the molten steel is a pressing issue.

[0003] At present, after the molten steel enters the station, the steel plates need to be manually sheared. Through the collaboration of multiple people, the sheared steel plates are slowly placed in the appropriate position in the ladle through the tether and covered on the slag. Then, when the ladle is lifted, the bottom of the RH immersion tube contacts the steel plate to prevent the top slag from entering the vacuum chamber. Although it has the effect of avoiding slag and improving the cleanliness of the molten steel, it requires manual shearing of the steel plates and the collaboration of multiple people. The position of the steel plates cannot be accurately positioned, which affects the slag avoidance effect. In addition, the operators work under the high-temperature radiation of the molten steel, which leads to low labor efficiency and great safety risks. Summary of the Invention

[0004] In order to solve the technical problems in the existing technology that manual shearing of steel plates and collaboration of multiple people are required, the steel plates cannot be accurately positioned, which affects the slag avoidance effect, has low labor efficiency and high safety risks, the present application provides a ladle slag avoidance device.

[0005] The present application provides a ladle slag avoidance device for conveying slag avoidance steel plates to a ladle, comprising a steel coil, a discharging assembly, a cutting assembly, and a lifting assembly, wherein:

[0006] The steel coil contains steel plates;

[0007] The discharging assembly is arranged on the side of the ladle and is used to pull the steel plate out of the steel coil to a specified length;

[0008] The cutting assembly is arranged above the discharging assembly and is used to cut the steel plate drawn out to a specified length to obtain the slag-avoiding steel plate;

[0009] The lifting assembly is arranged above the ladle, and is used to take the slag avoidance steel plate, and release the slag avoidance steel plate after moving from the waiting position to the working position, so as to transfer the slag avoidance steel plate to the corresponding position of the ladle.

[0010] In some optional embodiments, the lifting assembly includes a lifting unit and a grabbing unit. The lifting unit is arranged above the ladle and is used to move from a waiting position to a working position to transfer the slag-avoiding steel plate to the ladle. The picking and placing unit is arranged on the lifting unit and is used to pick and place the slag-avoiding steel plate.

[0011] During operation, the lifting unit moves from the waiting position to the first working position, the lifting unit lowers the pick-up and placement unit onto the slag-avoiding steel plate, and the pick-up and placement unit takes the slag-avoiding steel plate; the lifting unit raises the pick-up and placement unit to a high position, the lifting unit moves from the first working position to the second working position, the lifting unit lowers the pick-up and placement unit to a low position, and the pick-up and placement unit releases the slag-avoiding steel plate.

[0012] In some optional embodiments, the lifting unit includes a lifting bracket, a lifting trolley and a wire rope, and the grabbing unit adopts an electromagnetic suction cup; the lifting trolley is slidably installed on the lifting bracket, and the two ends of the wire rope are respectively connected to the lifting trolley and the electromagnetic suction cup, and the lifting trolley is used to wind or release the wire rope and move along the discharging assembly toward the direction of the ladle; when the lifting unit is in the first working position, the wire rope and the center line of the slag-avoiding steel plate along the length direction are located in the same plane; when the lifting unit is in the second working position, the wire rope and the axis of the ladle are located in the same plane.

[0013] In some optional embodiments, the lifting trolley includes a frame, a walking wheel, a walking motor, a winding motor and a winding shaft; the walking wheel is arranged under the frame and is slidably mounted on the lifting bracket; the walking motor is connected to the walking wheel to drive the walking wheel to rotate; the wire rope is wound on the winding shaft; the winding motor is connected to the winding shaft to drive the winding shaft to rotate.

[0014] In some optional embodiments, the discharging assembly includes fixed rollers, reducer rollers, pressure rollers and a counter, a plurality of fixed rollers are supported under the steel plate, the pressure rollers and the reducer rollers are clamped on the upper and lower sides of the steel plate, the reducer rollers are arranged close to the steel coil so that the steel plate can be pulled out from the steel coil by rotating the reducer rollers; the counter is arranged on the reducer rollers to record the number of rotations of the reducer rollers, and when the reducer rollers rotate the preset number of rotations, the steel plate is pulled out to the specified length.

[0015] In some optional embodiments, the cutting assembly includes a pad, a shearing knife, a shearing bracket and a cylinder; the pad is arranged under the slag-avoiding steel plate; the shearing bracket includes a horizontal frame and two vertical frames, the two vertical frames are spaced apart on both sides of the slag-avoiding steel plate, and the two ends of the horizontal frame are respectively connected to the two vertical frames; the cylinder is installed on the horizontal frame, and the output end of the cylinder is connected to the shearing knife for driving the shearing knife to move in the vertical direction.

[0016] In some optional embodiments, a controller is further included, wherein the controller is electrically connected to the discharging assembly, the cutting assembly, and the lifting assembly, respectively, wherein:

[0017] The controller is used to control the discharging assembly to pull the steel plate out of the steel coil to a specified length;

[0018] The controller is further used to control the cutting assembly to cut the steel plate pulled out to a specified length to obtain the slag-avoiding steel plate;

[0019] The controller is also used to control the lifting assembly to pick up the slag-avoiding steel plate, and release the slag-avoiding steel plate after moving it from the waiting position to the working position, so as to transfer the slag-avoiding steel plate to a corresponding position of the ladle.

[0020] In some optional embodiments, the controller is used to control the rotation of the reducer roller and receive the number on the counter of the discharging component. When it is determined that the number on the counter reaches a preset value, the reducer roller is controlled to stop rotating so that the steel plate is pulled out from the steel coil to a specified length; the reducer roller is used to feed back a signal of completion of the stop rotation operation to the controller.

[0021] In some optional embodiments, the controller is used to control the cylinder-driven shearing knife of the cutting assembly to descend after receiving the operation completion signal of the reducer roller, so as to cut the steel plate to obtain the slag-avoiding steel plate, and control the cylinder-driven shearing knife to rise to the initial position after cutting the steel plate; the cylinder is used to feed back the cutting end signal to the controller.

[0022] In some optional embodiments, the controller is used to control the lifting trolley of the lifting assembly to release the wire rope to above the slag-avoiding steel plate after receiving the cutting end signal, control the electromagnetic suction cup of the lifting assembly to be energized to absorb the slag-avoiding steel plate, control the lifting trolley to wind the wire rope to make the electromagnetic suction cup rise to a high position, and then move the lifting trolley from the first working position to the second working position. The lifting trolley releases the wire rope to make the electromagnetic suction cup drop to a low position, and controls the electromagnetic suction cup to be de-energized to release the slag-avoiding steel plate, so as to transfer the slag-avoiding steel plate to the corresponding position of the ladle.

[0023] A ladle slag avoidance device provided according to one or more embodiments of the present application has the following beneficial effects compared to the prior art:

[0024] The steel plate is pulled out from the steel coil to a specified length by the discharging assembly; the steel plate pulled out to the specified length is cut off by the cutting assembly to obtain the slag-avoiding steel plate; the lifting assembly takes the slag-avoiding steel plate and releases the slag-avoiding steel plate after moving from the waiting position to the working position to transfer the slag-avoiding steel plate to the corresponding position of the ladle. The distance between the waiting position and the working position is pre-set. The lifting assembly only needs to move from the waiting position to the working position to accurately place the slag-avoiding steel plate in the corresponding position of the ladle with high accuracy and good slag-avoiding effect. The above operations are performed automatically to reduce the workload and safety risks of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a ladle slag avoidance device in one or more embodiments of the present application is shown;

[0026] Figure 2 Shows the application Figure 1 Middle, partial enlarged view of part A;

[0027] Figure 3 A schematic structural diagram of a lifting trolley of a ladle slag avoidance device in one or more embodiments of the present application is shown.

[0028] Description of reference numerals: 100 - working table, 110 - storage bracket, 111 - fixing wheel; 200 - ladle;

[0029] 1-Steel coil; 2-Discharging assembly, 21-Fixed roller, 22-Reducer roller, 23-Pressing roller, 24-Counter; 3-Cutting assembly, 31-Spacer, 32-Shear knife, 33-Shearing bracket, 331-Horizontal frame, 332-Vertical frame, 34-Cylinder; 4-Lifting assembly, 41-Lifting bracket, 42-Lifting trolley, 421-Frame, 422-Traveling wheel, 423-Traveling motor, 424-Winding motor, 425-Winding shaft, 43-Wire rope, 44-Electromagnetic suction cup; 5-Controller. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to understand the present application more clearly, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0031] See also Figure 1-Figure 3 In an embodiment of the present application, a ladle slag avoidance device is provided. The slag avoidance device is placed as a whole on a workbench 100 and is used to transport slag-avoiding steel plates to a ladle 200. The device includes a steel coil 1, a discharging assembly 2, a cutting assembly 3, and a lifting assembly 4, wherein:

[0032] The steel coil 1 is rolled with steel plates; a storage bracket 110 is provided on the workbench 100, and a fixed wheel 111 is provided on the storage bracket 110. The steel coil 1 is sleeved on the fixed wheel 111 and can rotate along the fixed wheel 111;

[0033] The discharging assembly 2 is provided on the side of the ladle 200 and is used to pull the steel plate out of the steel coil 1 to a specified length;

[0034] The cutting assembly 3 is arranged above the discharging assembly 2 and is used to cut the steel plate drawn out to a specified length to obtain the slag-avoiding steel plate;

[0035] The lifting assembly 4 is arranged above the ladle 200 and is used to take the slag-avoiding steel plate and release the slag-avoiding steel plate after moving it from the waiting position to the working position to transfer the slag-avoiding steel plate to the corresponding position of the ladle 200.

[0036] The ladle slag avoidance device provided in the embodiment of the present application pulls the steel plate from the steel coil 1 to a specified length through the discharging component 2; the cutting component 3 cuts the steel plate pulled out to the specified length to obtain the slag avoidance steel plate; the lifting component 4 takes the slag avoidance steel plate and releases the slag avoidance steel plate after moving from the waiting position to the working position to transfer the slag avoidance steel plate to the corresponding position of the ladle 200. The distance between the waiting position and the working position is pre-set. The lifting component 4 only needs to move from the waiting position to the working position to accurately place the slag avoidance steel plate into the corresponding position of the ladle 200, with high accuracy and good slag avoidance effect; and the above operations are performed automatically, reducing the workload and safety risks of the staff.

[0037] In some optional embodiments, the lifting assembly 4 includes a lifting unit and a grabbing unit, the lifting unit is arranged above the ladle 200, and is used to move from the waiting position to the working position to transfer the slag-avoiding steel plate to the ladle 200; the picking and placing unit is arranged on the lifting unit, and is used to pick and place the slag-avoiding steel plate; when working, the lifting unit moves from the waiting position to the first working position, the lifting unit lowers the picking and placing unit onto the slag-avoiding steel plate, and the picking and placing unit takes the slag-avoiding steel plate; the lifting unit raises the picking and placing unit to a high position, the lifting unit moves from the first working position to the second working position, the lifting unit lowers the picking and placing unit to a low position, and the picking and placing unit releases the slag-avoiding steel plate.

[0038] In some optional embodiments, the lifting unit includes a lifting bracket 41, a lifting trolley 42 and a wire rope 43, and the grabbing unit adopts an electromagnetic suction cup 44; the lifting bracket 41 is arranged above the workbench 100, and a guide rail is provided on the lifting bracket 41, and the length direction of the guide rail is arranged along the discharging assembly 2 toward the ladle 200, and the lifting trolley 42 is slidably installed on the guide rail of the lifting bracket 41, and the two ends of the wire rope 43 are respectively connected to the lifting trolley 42 and the electromagnetic suction cup 44, and the lifting trolley 42 is used to wind or release the wire rope 43 and move along the discharging assembly 2 toward the ladle 200; when the lifting unit is in the first working position, the wire rope 43 and the center line of the slag-avoiding steel plate along the length direction are in the same plane; when the lifting unit is in the second working position, the wire rope 43 and the axis of the ladle 200 are in the same plane.

[0039] In some optional embodiments, the lifting trolley 42 includes a frame 421, a walking wheel 422, a walking motor 423, a winding motor 424 and a winding shaft 425; the walking wheel 422 is arranged under the frame 421 and is slidably installed on the lifting bracket 41; the walking motor 423 is connected to the walking wheel 422 to drive the walking wheel 422 to rotate; the wire rope 43 is wound on the winding shaft 425; the winding motor 424 is connected to the winding shaft 425 to drive the winding shaft 425 to rotate.

[0040] In some optional embodiments, the discharging assembly 2 includes fixed rollers 21, reducer rollers 22, pressure rollers 23 and counters 24, multiple fixed rollers 21 are supported under the steel plate, the pressure rollers 23 and the reducer rollers 22 are clamped on the upper and lower sides of the steel plate, the reducer rollers 22 are arranged close to the steel coil 1, so that the steel plate can be pulled out from the steel coil 1 by rotating the reducer rollers 22; the counter 24 is arranged on the reducer rollers 22 to record the number of rotations of the reducer rollers 22. When the reducer rollers 22 rotate the preset number of rotations, the steel plate is pulled out to the specified length.

[0041] In some optional embodiments, the cutting assembly 3 includes a pad 31, a shearing knife 32, a shearing bracket 33 and a cylinder 34; the pad 31 is arranged under the slag-avoiding steel plate; the shearing bracket 33 includes a horizontal frame 331 and two vertical frames 332, and the two vertical frames 332 are spaced apart on both sides of the slag-avoiding steel plate, and the two ends of the horizontal frame 331 are respectively connected to the two vertical frames 332; the cylinder 34 is installed on the horizontal frame 331, and the output end of the cylinder 34 is connected to the shearing knife 32, for driving the shearing knife 32 to move in the vertical direction.

[0042] In some optional embodiments, the ladle slag avoidance device further includes a controller 5, and the controller 5 is electrically connected to the discharging component 2, the cutting component 3 and the lifting component 4, respectively, wherein:

[0043] The controller 5 is used to control the discharging assembly 2 to pull the steel plate from the steel coil 1 to a specified length;

[0044] The controller 5 is further used to control the cutting assembly 3 to cut the steel plate pulled out to a specified length to obtain the slag-avoiding steel plate;

[0045] The controller 5 is further configured to control the lifting assembly 4 to pick up the slag-avoiding steel plate, and release the slag-avoiding steel plate after moving it from the waiting position to the working position, so as to transfer the slag-avoiding steel plate to a corresponding position of the ladle 200 .

[0046] In some optional embodiments, the controller 5 is configured to control the discharging assembly 2 to pull the steel plate from the steel coil 1 to a specified length, specifically including:

[0047] The controller 5 is used to control the rotation of the reducer roller 22 and receive the number on the counter 24 of the discharging component 2. When it is judged that the number on the counter 24 reaches a preset value, the reducer roller 22 is controlled to stop rotating so that the steel plate is pulled out from the steel coil 1 to a specified length; the reducer roller 22 is used to feed back a stop rotation operation completion signal to the controller 5.

[0048] In some optional embodiments, the controller 5 is further configured to control the cutting assembly 3 to cut the steel plate pulled out to a specified length to obtain the slag-avoiding steel plate, specifically comprising:

[0049] The controller 5 is used to control the cylinder 34 of the cutting component 3 to drive the shear knife 32 to descend after receiving the operation completion signal of the reducer roller 22, so as to cut the steel plate to obtain the slag-avoiding steel plate, and control the cylinder 34 to drive the shear knife 32 to rise to the initial position after cutting the steel plate; the cylinder 34 is used to feed back the cutting end signal to the controller 5.

[0050] In some optional embodiments, the controller 5 is further configured to control the lifting assembly 4 to pick up the slag-avoiding steel plate and release the slag-avoiding steel plate after moving it from the waiting position to the working position, specifically including:

[0051] The controller 5 is used to control the lifting trolley 42 of the lifting assembly 4 to release the wire rope 43 to the top of the slag-avoiding steel plate after receiving the cutting end signal, control the electromagnetic suction cup 44 of the lifting assembly 4 to be energized to absorb the slag-avoiding steel plate, control the lifting trolley 42 to wind the wire rope 43 so that the electromagnetic suction cup 44 rises to a high position, and then move the lifting trolley 42 from the first working position to the second working position. The lifting trolley 42 releases the wire rope 43 so that the electromagnetic suction cup 44 drops to a low position, and controls the electromagnetic suction cup 44 to be de-energized to release the slag-avoiding steel plate, so as to transfer the slag-avoiding steel plate to the corresponding position of the ladle 200.

[0052] The working principle of the ladle slag avoidance device proposed in the embodiment of the present application is:

[0053] Step 1: After the molten steel enters the station, the operator places the ladle on the ladle 200 car, and then drives the ladle 200 car to the waiting limit position of the device to perform the slag avoidance and steel plate placement operation;

[0054] Step 2: When the ladle 200 is driven to the slag avoidance operation waiting limit position, the operator presses the start button of the device controller 5, and the device automatically starts to operate;

[0055] Step 3: After the device starts running, the controller 5 controls the reducer roller 22 to drive the steel plate to move forward. When the counter 24 on the reducer roller 22 displays the set length, the reducer roller 22 automatically stops running and returns the operation completion signal to the controller 5;

[0056] Step 4: After the controller 5 receives the steel plate operation stop signal, it controls the cylinder 34 to drive the shear knife 32 to descend to the low position. After cutting the steel plate, the shear knife 32 is raised to the high position, ending the cutting operation and returning the end signal to the controller 5;

[0057] Step 5: After receiving the cutting completion signal, the controller 5 sends a command signal to the lifting trolley 42. The wire rope 43 of the lifting trolley 42 descends, and the electromagnetic suction cup 44 at the bottom of the lifting trolley 42 generates suction force through electromagnetic action to absorb the steel plate. After that, the steel plate is slowly lifted to the high waiting position, and then the lifting trolley 42 moves forward to the working position limit.

[0058] Step 6: After the lifting trolley 42 moves forward to the limit of the working position, the wire rope 43 descends, driving the electromagnetic chuck 44 and the steel plate to fall together. When they fall to the lower position, the electromagnetic chuck 44 is controlled to cancel the electromagnetic effect, and the steel plate is separated from the electromagnetic chuck 44 and placed at a designated position above the top slag of the ladle 200, covering the required top slag part;

[0059] Step 7: After the steel plate is placed, the steel wire rope 43 drives the electromagnetic suction cup 44 to rise to the upper limit, and the lifting trolley 42 moves to the waiting position to end the slag-avoiding steel plate placement operation and returns a signal to the controller 5 to end this operation;

[0060] Step 8: After the slag-avoiding steel plate operation is completed, the ladle 200 car is driven to the RH treatment position, and the ladle 200 car is lifted so that the vacuum chamber immersion tube contacts the steel plate, and then the steel plate is used to avoid the slag and enter the vacuum chamber, thereby achieving the purpose of the slag-avoiding operation.

[0061] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0063] In this application, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood broadly. For example, "fix" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0064] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0065] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A ladle slag avoidance device for conveying slag avoidance steel plates to the ladle, characterized in that: It includes steel coils, discharging components, cutting components and lifting components, including: The steel coil contains steel plates; The discharging assembly is arranged on the side of the ladle and is used to pull the steel plate out of the steel coil to a specified length; The cutting assembly is arranged above the discharging assembly and is used to cut the steel plate drawn out to a specified length to obtain the slag-avoiding steel plate; The lifting assembly is arranged above the ladle, and is used to take the slag avoidance steel plate, and release the slag avoidance steel plate after moving from the waiting position to the working position, so as to transfer the slag avoidance steel plate to the corresponding position of the ladle.

2. The ladle slag avoidance device according to claim 1, characterized in that: The lifting assembly includes a lifting unit and a grabbing unit. The lifting unit is arranged above the ladle and is used to move from a waiting position to a working position to transfer the slag-avoiding steel plate to the ladle. The picking and placing unit is arranged on the lifting unit and is used to pick and place the slag-avoiding steel plate. During operation, the lifting unit moves from the waiting position to the first working position, the lifting unit lowers the pick-up and placement unit onto the slag-avoiding steel plate, and the pick-up and placement unit takes the slag-avoiding steel plate; the lifting unit raises the pick-up and placement unit to a high position, the lifting unit moves from the first working position to the second working position, the lifting unit lowers the pick-up and placement unit to a low position, and the pick-up and placement unit releases the slag-avoiding steel plate.

3. The ladle slag avoidance device according to claim 1, characterized in that: The lifting unit includes a lifting bracket, a lifting trolley and a wire rope, and the grabbing unit adopts an electromagnetic suction cup; the lifting trolley is slidably installed on the lifting bracket, and the two ends of the wire rope are respectively connected to the lifting trolley and the electromagnetic suction cup, and the lifting trolley is used to wind or release the wire rope and move along the discharging assembly toward the ladle; when the lifting unit is in the first working position, the wire rope and the center line of the slag-avoiding steel plate along the length direction are located in the same plane; when the lifting unit is in the second working position, the wire rope and the axis of the ladle are located in the same plane.

4. The ladle slag avoidance device according to claim 3, characterized in that: The lifting trolley includes a frame, a travel wheel, a travel motor, a winding motor and a winding shaft; the travel wheel is arranged under the frame and is slidably mounted on the lifting bracket; The travel motor is connected to the travel wheel and is used to drive the travel wheel to rotate; the steel wire rope is wound on the winding shaft; The winding motor is connected to the winding shaft and is used for driving the winding shaft to rotate.

5. The ladle slag avoidance device according to claim 1, characterized in that: The discharging assembly includes fixed rollers, reducer rollers, pressure rollers and counters. Multiple fixed rollers are supported under the steel plate. The pressure rollers and the reducer rollers are clamped on the upper and lower sides of the steel plate. The reducer rollers are arranged close to the steel coil to pull the steel plate out of the steel coil through the rotation of the reducer rollers; the counter is arranged on the reducer rollers to record the number of rotations of the reducer rollers. When the reducer rollers rotate the preset number of rotations, the steel plate is pulled out to the specified length.

6. The ladle slag avoidance device according to claim 1, characterized in that: The cutting assembly includes a pad, a shearing knife, a shearing bracket and a cylinder; the pad is arranged under the slag-avoiding steel plate; the shearing bracket includes a horizontal frame and two vertical frames, the two vertical frames are spaced apart on both sides of the slag-avoiding steel plate, and the two ends of the horizontal frame are respectively connected to the two vertical frames; the cylinder is installed on the horizontal frame, and the output end of the cylinder is connected to the shearing knife for driving the shearing knife to move in the vertical direction.

7. The ladle slag avoidance device according to any one of claims 1 to 6, characterized in that: It also includes a controller, which is electrically connected to the discharging assembly, the cutting assembly, and the lifting assembly, wherein: The controller is used to control the discharging assembly to pull the steel plate out of the steel coil to a specified length; The controller is further used to control the cutting assembly to cut the steel plate pulled out to a specified length to obtain the slag-avoiding steel plate; The controller is also used to control the lifting assembly to pick up the slag-avoiding steel plate, and release the slag-avoiding steel plate after moving it from the waiting position to the working position, so as to transfer the slag-avoiding steel plate to a corresponding position of the ladle.

8. The ladle slag avoidance device according to claim 7, characterized in that: The controller is used to control the rotation of the reducer roller and receive the number on the counter of the discharging component. When it is determined that the number on the counter reaches a preset value, the controller controls the reducer roller to stop rotating so that the steel plate is pulled out from the steel coil to a specified length; the reducer roller is used to feed back a stop rotation operation completion signal to the controller.

9. The ladle slag avoidance device according to claim 8, characterized in that: The controller is used to control the cylinder-driven shearing knife of the cutting assembly to descend after receiving the operation completion signal of the reducer roller, so as to cut the steel plate to obtain the slag-avoiding steel plate, and control the cylinder-driven shearing knife to rise to the initial position after cutting the steel plate; the cylinder is used to feed back the cutting end signal to the controller.

10. The ladle slag avoidance device according to claim 9, characterized in that: The controller is used to control the lifting trolley of the lifting assembly to release the wire rope to above the slag-avoiding steel plate after receiving the cutting end signal, control the electromagnetic suction cup of the lifting assembly to be energized to absorb the slag-avoiding steel plate, control the lifting trolley to wind the wire rope to make the electromagnetic suction cup rise to a high position, and then move the lifting trolley from the first working position to the second working position. The lifting trolley releases the wire rope to make the electromagnetic suction cup drop to a low position, and controls the electromagnetic suction cup to be de-energized to release the slag-avoiding steel plate, so as to transfer the slag-avoiding steel plate to the corresponding position of the ladle.

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