Filter interception device for ladle

Abstract

The present invention relates to a filtering and intercepting device for a ladle, which has an intercepting frame that can be self-locked on the ladle and can filter and intercept the solidified slag into blocks when pouring liquid slag; the intercepting frame is provided with locking hooks that are relatively arranged and rotatably connected to the intercepting frame, and each locking hook forms a hook-locking fit with the ladle after being pressed and rotated against the edge of the ladle; the intercepting frame is provided with locking blocks corresponding to each locking hook and can be slidably arranged on the intercepting frame under the drive of a driving device, and each locking block extends out of the intercepting frame under the drive of the driving device and forms a fixed fit with the locking hook. The intercepting frame is self-locked on the ladle through the rotation of the locking hook and the fixed fit between the locking block and the locking hook. The present invention has an ingenious structure, which can timely filter and intercept the solidified slag into blocks in the ladle when pouring liquid slag, and prevent the block slag from pouring into the heat exchanger. The structure is ingenious, safe and practical.

Description

Technical Field

[0001] The invention patent relates to the field of ladle, and in particular to a filtering and intercepting device for a ladle. Background Art

[0002] Ladles are used in steel mills and foundries to receive molten steel and liquid slag for pouring operations before open-hearth furnaces, electric furnaces, or converters. After the steel is refined in the steelmaking furnace, the ladle receives the molten steel or liquid slag and transports it to the argon blowing, refining, and continuous casting platforms to complete the steel pouring task in conjunction with continuous casting. During this period, the ladle's functions are: (1) to hold and transport molten steel; (2) to deoxidize and alloy the molten steel; (3) to adjust the molten steel temperature, homogenize its composition, and float out inclusions; and (4) to perform refining and vacuum treatment outside the furnace.

[0003] The conveying liquid contained in the current ladle is generally high-temperature liquid steel slag or other high-temperature pouring liquid. The high-temperature liquid steel slag or high-temperature pouring liquid in the existing ladle is generally poured into the heat exchanger by direct dumping. Then, some large pieces of steel blocks that have not yet melted at high temperatures will still remain in the existing high-temperature liquid steel slag or high-temperature pouring liquid. In the existing technology, when pouring high-temperature liquid steel slag or high-temperature pouring liquid into the heat exchanger, these steel slags that have solidified into blocks will enter the heat exchanger together with the liquid steel slag. When the large pieces of steel slag that have not yet melted enter the heat exchanger, the force generated by the inertia during dumping will impact the inner wall or bottom of the heat exchanger. Under long-term use, the inner wall and bottom of the heat exchanger can be easily worn or damaged by the impact force, thereby affecting the overall use effect and service life of the heat exchanger, which is very inconvenient. Summary of the Invention

[0004] The purpose of this patent is to provide a filtering and intercepting device for a ladle, which can effectively filter the liquid slag poured into the exchanger and intercept the slag solidified into blocks, greatly reducing or even avoiding the impact and damage of the solidified slag to the heat exchanger, ensuring the use effect and service life of the heat exchanger. The structure is ingenious, safe and practical.

[0005] The technical solution for achieving the purpose of the patent of the present invention is: the patent of the present invention has an interception frame that can be self-locked on the ladle and can filter and intercept the steel slag solidified into blocks when pouring liquid steel slag; the interception frame is provided with locking hooks that are relatively arranged and rotatably connected to the interception frame, and each locking hook forms a hook lock with the ladle after being pressed and rotated against the edge of the ladle. The interception frame is provided with locking blocks corresponding to each locking hook and can be slidably arranged on the interception frame under the drive of the driving device. Each locking block is extended out of the interception frame and forms a fixed fit with the locking hook under the drive of the driving device. The interception frame is self-locked on the ladle through the rotation of the locking hook and the fixed fit between the locking block and the locking hook.

[0006] The cam is fixedly provided with a locking plate, and the locking plate is fixedly mounted on the locking plate, wherein the locking plate is pivotally connected to the locking plate and the locking cam is fixedly mounted on the locking plate.

[0007] Furthermore, a limiting slot is provided on the end of the rotating plate away from the connecting rod, and the extension direction of the limiting slot is perpendicular to the rotation axis of the rotating plate and the rotation axis of the connecting plate. At least one limiting slot is provided in the limiting slot in the same direction as the extension direction of the limiting slot, and the connecting plate is provided with limiting sliders corresponding to each limiting slot. The connecting plate is slidably connected to one end of the rotating plate through sliding cooperation with the limiting slot and sliding cooperation between each limiting slider and the limiting slot.

[0008] Furthermore, the above-mentioned intercepting frame is provided with a telescopic groove for the locking block to slide, and the sliding direction of the telescopic groove is arranged parallel to the rotation axis of the rotating rod. The lock hook is provided with a lock groove that can be connected with the telescopic groove after rotation. After the lock hook is rotated, it is fixed to the intercepting frame through the plug-in cooperation between the locking block and the lock groove.

[0009] Furthermore, the locking block is provided with a mounting groove, in which a plurality of guide bearings capable of guiding the sliding in the telescopic groove are installed, and each guide bearing is pressed against the side wall of the telescopic groove.

[0010] Furthermore, the above-mentioned locking hook includes a top hook body that can be pressed against the top of the edging, a bottom hook body that can be pressed against the bottom of the edging, and a connecting body that connects the top hook body and the bottom hook body and can be pressed against the side wall of the edging. The top hook body, the bottom hook body and the connecting body are integrally formed and form a buckle groove that can be used to fasten the edging of the ladle. The top hook body is also provided with a reinforcing rib, and the reinforcing rib is integrally formed with the top hook body.

[0011] Furthermore, the intercepting frame is provided with limiting bolts corresponding to each locking hook and capable of limiting the rotation of the locking hook.

[0012] Furthermore, the above-mentioned interception frame includes a positioning frame mounted on the ladle, a side frame fixed on the positioning frame, and a plurality of interception rods fixed in the side frame. One end of each interception rod is fixed on the positioning frame and is arranged perpendicular to the positioning frame, and the other end of each interception rod extends out of the side frame. The positioning frame, the side frame and the interception rods form an interception net that can intercept and filter the steel slag solidified into blocks in the liquid steel slag.

[0013] Furthermore, each intercepting rod is provided with a pressing block at one end away from the positioning frame for pressing the end face of the ladle. Each pressing block is fixed on the corresponding intercepting rod, and each pressing block is evenly distributed along the contour of the ladle.

[0014] Furthermore, the positioning frame is fixed with extension rods corresponding to each locking hook, each extension rod is arranged in parallel and each extension rod is fixed with a pressing rod that can press the hanging ear of the ladle, and each pressing rod is provided with a pressing surface that can press the side wall of the hanging ear.

[0015] The patent of the present invention has positive effects: (1) The present invention sets an intercepting frame on the ladle, and when the intercepting frame is pressed against the ladle, the locking hook is driven to automatically rotate and form a self-locking fit with the edge of the ladle, and the locking block is driven by the driving device to lock the locking hook, thereby ensuring the fixed connection between the locking hook and the intercepting frame. On the one hand, it can effectively solve the problem of the slag solidified into blocks in the liquid slag in the prior art colliding and impacting the inner wall of the heat exchanger, and the intercepting net is used to filter and intercept the slag solidified into blocks in the liquid slag, thereby ensuring the quality and purity of the liquid slag, and greatly reducing the impact on the heat exchanger, thereby ensuring the safety of the inner wall and bottom of the heat exchanger, and further ensuring the service life of the heat exchanger. On the other hand, the locking block is driven by the driving device to lock the locking hook, which can effectively ensure the stability of the intercepting frame on the ladle, thereby effectively avoiding the displacement of the intercepting frame during use. The structure is ingenious and safe and stable.

[0016] (2) The present invention sets a driving component, and drives the rotating rod to rotate through an external driving vehicle. The rotation of the rotating rod drives the rotation of the driven rod, the connecting rod, the rotating plate, and the connecting plate in turn, thereby controlling the plug-in fit between the lock block and the lock hook. The first through groove on the positioning base can effectively ensure the up and down swing of the driven rod, and the second through groove can effectively ensure the swing of the rotating plate. The sliding connection between the rotating plate and the connecting plate can effectively offset the change in the length of the connecting plate during the sliding process, thereby ensuring that the connecting plate is only subjected to horizontal tension when driving the lock block to slide, and will not generate longitudinal or other direction forces, ensuring the sliding direction of the lock block and ensuring that the lock block will not be locked during the sliding process, and can effectively control the sliding of the lock block, further ensuring the fit between the lock block and the hook lock, as well as the smoothness of plug-in locking and loosening, which is efficient and practical.

[0017] (3) The present invention sets a limit slide on the rotating plate, sets a plurality of limit grooves on the limit slide, and through the sliding cooperation between the connecting plate and the limit slide, and the cooperation between the limit slider and the limit groove, on the one hand, the sliding of the connecting plate can be limited, and the locking block can be driven to move horizontally. On the other hand, the sliding cooperation can offset the length change of the connecting plate during the sliding process, thereby ensuring that the locking block is only subjected to horizontal tension without generating resistance in other directions, thereby ensuring the smoothness of the sliding of the locking block. The structure is ingenious, efficient and convenient.

[0018] (4) The present invention provides a telescopic slot on the intercepting frame and a locking slot on the locking hook. The cooperation between the telescopic slot and the locking slot ensures a smooth connection between the locking block and the locking hook. At the same time, a travel guide is provided for the locking block to avoid displacement of the locking block during the sliding process, thereby ensuring that the locking block is accurately and efficiently inserted into the locking slot, which is stable and practical.

[0019] (5) The present invention provides a mounting groove on the lock block and multiple guide bearings in the mounting groove to ensure the smooth sliding of the lock block in the telescopic groove, thereby preventing the lock block from getting stuck when sliding in the telescopic groove or from being worn due to overcoming resistance when sliding, and further guiding the sliding of the lock block, which is efficient and practical.

[0020] (6) The present invention ensures the firmness and stability of the connection between the lock hook and the edge of the ladle by configuring the lock hook to be a combination of a top hook body, a connector and a bottom hook body, and by configuring a reinforcing rib body on the top hook body. The buckle groove is formed to form a locked state with the edge, thereby effectively avoiding the lock hook from being separated from the edge of the ladle, which is safe and practical.

[0021] (7) The present invention sets a limit bolt on the intercepting frame to limit the rotation of the lock hook, thereby preventing the lock hook from rotating excessively, and ensuring that the buckle slot rotates smoothly when in contact with the edge of the ladle and engages with the edge of the ladle.

[0022] (8) The present invention arranges the interception frame into a combination of a positioning frame, a side frame and an interception rod. The interception net formed between the positioning frame, the side frame and the interception rod can intercept and filter the steel slag solidified into blocks in the liquid steel slag, while ensuring the overall stability of the interception frame.

[0023] (9) The present invention further ensures the overall stability of the interception frame by arranging multiple pressure blocks on the interception rod and evenly distributing the pressure blocks along the contour of the ladle. The bottom surfaces of the pressure blocks are coplanar with the bottom surface of the positioning frame, which effectively avoids the interception frame from shifting during use, further ensuring the overall stability of the interception frame, and making it efficient and practical.

[0024] (10) The present invention provides an extension rod on the positioning frame, and uses the pressure rod on the extension rod and the pressure surface on the pressure rod to press the hanging ear, thereby further ensuring the horizontal stability of the intercepting frame and the stability of the pressure against the ladle, which is stable and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein

[0026] Figure 1 This is a schematic diagram of the overall structure of the ladle filtering and intercepting device and the ladle locking device in the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of the ladle filtering and intercepting device in the present invention when it is in a locked state;

[0028] Figure 3 This is a front view of the overall structure of the ladle filtering and intercepting device of the present invention when it is in a locked state;

[0029] Figure 4 This is a schematic diagram of the overall structure of the ladle filtering and intercepting device separated from the ladle in the present invention;

[0030] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0031] Figure 6 This is a schematic diagram of the overall structure of the ladle filtering and intercepting device in the present invention when it is in a disengaged state;

[0032] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0033] Figure 8 This is a front view of the overall structure of the ladle filtering and intercepting device of the present invention when it is in a disengaged state;

[0034] Figure 9 A top view of the overall structure of the interception frame of the present invention;

[0035] Figure 10 Schematic diagram of the overall structure of the driving device in the present invention;

[0036] Figure 11 It is a front view of the overall structure of the driving device of the present invention;

[0037] Figure 12 It is a side view of the overall structure of the driving device of the present invention;

[0038] Figure 13Schematic diagram of the overall structure of the lock hook in the present invention;

[0039] Figure 14 It is a side view of the overall structure of the locking block in the present invention. DETAILED DESCRIPTION

[0040] See Figures 1 to 14 The patent of the present invention relates to a filtering and intercepting device for a ladle, which has an intercepting frame 1 that can be reliably pressed and self-locked on the ladle G, and can filter and intercept the solidified slag into blocks when pouring liquid slag; the intercepting frame 1 is provided with locking hooks 2 that are relatively arranged and rotatably connected to the intercepting frame 1, and each locking hook 2 forms a hook lock with the ladle G after being pressed and rotated against the edge of the ladle G. The intercepting frame 1 is provided with locking blocks 3 corresponding to each locking hook 2 and can be slidably arranged on the intercepting frame 1 under the drive of the driving device 4. Each locking block 3 extends out of the intercepting frame 1 under the drive of the driving device 4 and forms a fixed fit with the locking hook 2. The intercepting frame 1 is self-locked on the ladle G through the rotation of the locking hook 2 and the fixed fit between the locking block 3 and the locking hook 2.

[0041] The driving device 4 includes a positioning base 41 fixed on the intercepting frame 1, a rotating rod 42 rotatably connected to the positioning base 41, a rotating plate 45 rotatably connected to the positioning base 41, a connecting rod 44 connecting the rotating rod 42 and the rotating plate 45, and a connecting plate 46 connecting the rotating plate 45 and the locking block 3. The rotating rod 42 and the rotating plate 45 are respectively located on both sides of the positioning base 41, and the rotating axes of the rotating rod 42 and the rotating plate 45 are both horizontally arranged. The rotating axis of the rotating rod 42 is perpendicular to the rotating axis of the rotating plate 45. A driven rod 43 is fixed to one end of the rotating rod 42. A driven rod 43 is provided on the positioning base 41 for the driven rod 43 to pass through, and the driven rod 43 can be moved up and down under the drive of the rotating rod 42. The first through slot 411 is swung, and the driven rod 43 is rotatably connected to one end of the connecting rod 44 after passing through the first through slot 411, and the other end of the connecting rod 44 is rotatably connected to one end of the rotating plate 45. The positioning base 41 is also provided with a second through slot 412 for the rotating plate 45 to swing, and the end of the rotating plate 45 away from the connecting rod 44 passes through the second through slot 412 and is slidably connected to the connecting plate 46, and the other end of the connecting plate 46 is rotatably connected to the locking block 3. The locking block 3 is slidably arranged on the intercepting frame 1 through the rotation of the rotating rod 42, the rotation cooperation of the connecting rod 44 with the driven rod 43 and the rotating plate 45, the sliding cooperation of the rotating plate 45 and the connecting plate 46, and the rotational connection between the connecting plate 46 and the locking block 3.

[0042] When the intercepting frame 1 is placed on the ladle G, the locking hook 2 is rotated by pressing against the edge of the ladle G and is fixed to the ladle G by the hook lock. The rotating rods 42 at both ends of the driving device 4 can be rotated downward by the driving of the crane, and drive the driven rod 43 to flip upward. During the upward flipping of the driven rod 43, the driven rod 43 drives the connecting rod 44 to move up and drives the rotating plate 45 to flip upward. The rotating plate 45 is "V" shaped, and the rotation center of the rotating plate 45 is in the middle of the rotating plate 45. Therefore, during the rotation of the rotating plate 45, the other end of the rotating plate 45 will also rotate with it. The other end of the rotating plate 45 is slidably connected to the connecting plate 46. Therefore, during the rotation of the rotating plate 45, the connecting plate 46 starts to swing. During the swinging process of the connecting plate 46, the sliding connection between the connecting plate 46 and the rotating plate 45 offsets the length margin generated by the connecting plate 46 during the swinging process, thereby ensuring that the locking block 3 will only move in the horizontal direction and will not generate longitudinal force or longitudinal displacement.

[0043] A limiting groove is provided on the end of the rotating plate 45 away from the connecting rod 44, and the extension direction of the limiting groove is perpendicular to the rotation axis of the rotating plate 45 and the rotation axis of the connecting plate 46. At least one limiting groove 451 is provided in the limiting groove in the same direction as the extension direction of the limiting groove, and a limiting slider 461 corresponding to each limiting groove 451 is provided on the connecting plate 46. The connecting plate 46 is slidably connected to one end of the rotating plate 45 through sliding cooperation with the limiting groove and sliding cooperation between each limiting slider 461 and the limiting groove 451.

[0044] The intercepting frame 1 is provided with a telescopic groove 122 for the locking block 3 to slide, and the sliding direction of the telescopic groove 122 is set parallel to the rotation axis of the rotating rod 42. The locking hook 2 is provided with a locking groove that can be connected with the telescopic groove 122 after rotation. After the locking hook 2 is rotated, it is fixed to the intercepting frame 1 through the plug-in cooperation between the locking block 3 and the locking groove.

[0045] The locking block 3 is provided with a mounting groove 31 , in which a plurality of guide bearings 32 are mounted for guiding the sliding movement in the telescopic groove 122 . Each guide bearing 32 is pressed against a side wall of the telescopic groove 122 .

[0046] The locking hook 2 includes a top hook body 21 that can press against the top of the edging, a bottom hook body 23 that can press against the bottom of the edging, and a connecting body 22 that connects the top hook body 21 and the bottom hook body 23 and can press against the side wall of the edging. The top hook body 21, the bottom hook body 23 and the connecting body 22 are integrally formed and form a buckle groove 25 that can fasten the edging of the ladle G. A reinforcing rib 24 is also provided on the top hook body 21, and the reinforcing rib 24 is integrally formed with the top hook body 21.

[0047] The intercepting frame 1 is provided with a limiting bolt 121 corresponding to each locking hook 2 and capable of limiting the rotation of the locking hook 2.

[0048] The interception frame 1 includes a positioning frame 11 mounted on the ladle G, a side frame 12 fixed on the positioning frame 11, and a plurality of interception rods 13 fixed in the side frame 12. One end of each interception rod 13 is fixed on the positioning frame 11 and is arranged perpendicular to the positioning frame 11, and the other end of each interception rod 13 extends out of the side frame 12. The positioning frame 11, the side frame 12 and the interception rods 13 form an interception net that can intercept and filter the steel slag solidified into blocks in the liquid steel slag.

[0049] Each intercepting rod 13 is provided with a pressing block 14 on the end away from the positioning frame 11, which can press the end face of the ladle G. Each pressing block 14 is fixed on the corresponding intercepting rod 13, and each pressing block 14 is evenly distributed along the contour of the ladle G.

[0050] The positioning frame 11 is fixed with an extension rod 15 corresponding to each locking hook 2. The extension rods 15 are arranged in parallel and each extension rod 15 is fixed with a pressing rod 16 that can press the hanging ear of the ladle G. Each pressing rod 16 is provided with a pressing surface 17 that can press the side wall of the hanging ear.

[0051] Working principle of the present invention: When the present invention is used, the interception frame 1 is first placed on the ladle G. During the placement process, the positioning frame 11 on the interception frame 1 is placed across the ladle G, and the pressing blocks 14 on each interception stem are pressed against the ladle G along the wheel of the ladle G. At the same time, the pressing rod 16 on the rear end extension rod 15 of the positioning frame 11 is pressed against the hanging ear of the ladle G, so that the interception frame 1 is stably pressed against the ladle G. The interception rod 13, the side frame 12, and the positioning frame 11 form an interception net that can intercept and filter the slag solidified into blocks in the liquid slag, thereby improving the purity of the liquid slag and reducing the impact of the slag solidified into blocks in the liquid slag on the inner wall or bottom of the heat exchanger, thereby ensuring the safety and service life of the heat exchanger;

[0052] When the interception frame 1 is erected on the ladle G, the lock hook 2 on the interception frame 1 is pressed against the edge of the ladle G. After the top hook body 21 and the reinforcing rib body 24 on the lock hook 2 are pressed against the edge, the lock hook 2 starts to rotate, and the connecting body 22 of the lock hook 2 is pressed against the side wall of the edge, and the bottom hook body 23 is pressed against the bottom of the edge, thereby realizing the hook lock cooperation between the lock hook 2 and the edge and forming self-locking, thereby ensuring the stability of the connection between the lock hook 2 and the ladle G, and further ensuring the stability of the connection between the interception frame 1 and the ladle G;

[0053] When the locking hook 2 on the intercepting frame 1 is fixedly locked with the ladle G, the operator can control the driving machine to drive the rotating rods 42 at both ends of the intercepting frame 1 to start to rotate downward. During the downward rotation of each rotating rod 42, each driven rod 43 is driven to flip upward. During the upward flipping of the driven rod 43, the driven rod 43 drives the connecting rod 44 to move up and drives the rotating plate 45 to flip upward. The rotating plate 45 is in a "V" shape, and the rotation center of the rotating plate 45 is in the middle of the rotating plate 45. Therefore, during the rotation of the rotating plate 45, the other end of the rotating plate 45 will also rotate along with it, and the other end of the rotating plate 45 is slidably connected to the connecting plate 46. Therefore, during the rotation of the rotating plate 45, the connecting plate 46 is driven to start to swing. During the swinging process of the connecting plate 46, the sliding connection between the connecting plate 46 and the rotating plate 45 offsets the length margin generated by the swinging process of the connecting plate 46, thereby ensuring that the locking block 3 can only The locking hook 2 is connected with the expansion slot 122 after the rotation of the rotating plate 45, and the guide bearing 32 on the locking block 3 can drive the locking block 3 to smoothly extend out of the expansion slot 122 and enter the locking slot. After the locking block 3 enters the locking slot, the locking hook 2 is fixedly connected to the interception frame 1 and firmly fixes the interception frame 1 on the ladle G, ensuring the stability of the interception frame 1 on the ladle G, and effectively solving the problem in the prior art that the steel slag solidified into blocks in the liquid steel slag impacts and damages the inner wall of the heat exchanger. The steel slag solidified into blocks can be effectively intercepted and filtered out by filtering and intercepting, ensuring the purity of the liquid steel slag while also ensuring the safety of the inner wall and bottom of the heat exchanger and the service life of the heat exchanger. The structure is ingenious and safe and practical.

[0054] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ladle filtering and intercepting device, characterized in that: The invention provides an interception frame which can be self-locked on the ladle and can filter and intercept the steel slag solidified into blocks when pouring liquid steel slag; the interception frame is provided with locking hooks which are relatively arranged and rotatably connected to the interception frame, and each locking hook forms a hook lock cooperation with the ladle after being pressed against the edge of the ladle and rotated; the interception frame is provided with locking blocks which correspond to each locking hook and can be slidably arranged on the interception frame under the drive of the driving device, and each locking block extends out of the interception frame and forms a fixed cooperation with the locking hook under the drive of the driving device, and the interception frame is self-locked on the ladle through the rotation of the locking hook and the fixed cooperation between the locking block and the locking hook; The locking block is slidably connected to the intercepting frame through the rotation of the rotating rod, the rotation cooperation of the connecting rod with the driven rod and the rotating plate, the sliding cooperation of the rotating plate and the connecting plate, and the rotation connection of the connecting plate and the locking block.

2. The ladle filtering and intercepting device according to claim 1, characterized in that: A limiting slot is provided on the end of the rotating plate away from the connecting rod, and the extension direction of the limiting slot is perpendicular to the rotation axis of the rotating plate and the rotation axis of the connecting plate. At least one limiting slot is provided in the limiting slot in the same direction as the extension direction of the limiting slot, and a limiting slider corresponding to each limiting slot is provided on the connecting plate. The connecting plate is slidably connected to one end of the rotating plate through sliding cooperation with the limiting slot and sliding cooperation between each limiting slider and the limiting slot.

3. The ladle filtering and intercepting device according to claim 2, characterized in that: The intercepting frame is provided with a telescopic slot for the locking block to slide, and the sliding direction of the telescopic slot is arranged parallel to the rotation axis of the rotating rod. The locking hook is provided with a locking slot that can be connected with the telescopic slot after rotation. After the locking hook is rotated, it is fixed to the intercepting frame through the plug-in cooperation between the locking block and the lock slot.

4. The ladle filtering and intercepting device according to claim 3, characterized in that: The locking block is provided with an installation through groove, in which a plurality of guide bearings capable of guiding the sliding in the telescopic slot are installed, and each guide bearing is pressed against the side wall of the telescopic slot.

5. The ladle filtering and intercepting device according to claim 4, characterized in that: The locking hook includes a top hook body that can press against the top of the edging, a bottom hook body that can press against the bottom of the edging, and a connecting body that connects the top hook body and the bottom hook body and can press against the side wall of the edging. The top hook body, the bottom hook body and the connecting body are integrally formed and form a buckle groove that can fasten the edging of the ladle. The top hook body is also provided with a reinforcing rib, and the reinforcing rib is integrally formed with the top hook body.

6. The ladle filtering and intercepting device according to claim 5, characterized in that: The intercepting frame is provided with a limiting bolt corresponding to each locking hook and capable of limiting the rotation of the locking hook.

7. The ladle filtering and intercepting device according to claim 6, characterized in that: The interception frame includes a positioning frame mounted on the ladle, a side frame fixed on the positioning frame, and a plurality of interception rods fixed in the side frames, one end of each interception rod is fixed on the positioning frame and arranged perpendicularly to the positioning frame, and the other end of each interception rod extends out of the side frame. The positioning frame, the side frame and the interception rods form an interception net that can intercept and filter the steel slag solidified into blocks in the liquid steel slag.

8. The ladle filtering and intercepting device according to claim 7, characterized in that: Each intercepting rod is provided with a pressing block on one end away from the positioning frame for pressing the end face of the ladle. Each pressing block is fixed on the corresponding intercepting rod and is evenly distributed along the contour of the ladle.

9. The ladle filtering and intercepting device according to claim 8, characterized in that: The positioning frame is fixed with extension rods corresponding to each locking hook, each extension rod is arranged in parallel and each extension rod is fixed with a pressing rod that can press the hanging ear of the ladle, and each pressing rod is provided with a pressing surface that can press the side wall of the hanging ear.

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