Fine adjustment centering device for ladle filler sand guide pipe and filler sand filling device
By using a fine-tuning alignment device for the ladle drainage sand guide pipe, precise alignment between the guide pipe and the bottom drain of the ladle is achieved through the adjustment screw and lifting device. This solves the problem of drainage sand accumulation contaminating the molten steel, and improves the quality of the molten steel and filling efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAYE SPECIAL STEEL CO LTD
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-14
AI Technical Summary
In the existing technology, it is difficult to accurately align the drainage sand guide pipe with the bottom drain of the ladle, causing the drainage sand to accumulate at the bottom of the ladle and contaminate the molten steel.
A fine-tuning and centering device for the sand-draining guide tube of the ladle is adopted. The position of the sand-draining guide tube in the horizontal direction is adjusted by the first and second adjusting screws. Combined with the lifting device and the flow guide cover design, the guide tube is aligned with the bottom drain outlet of the ladle.
It improves the accuracy and stability of diversion sand filling, reduces steel molten material contamination, and enhances steel molten material quality and filling efficiency.
Smart Images
Figure CN224115179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of adjusting the ladle drainage sand guide tube, and in particular to a fine-tuning centering device for the ladle drainage sand guide tube and a drainage sand filling device. Background Technology
[0002] In the smelting of special steels, a ladle refining process is used to purify the molten steel. Before the ladle is filled with molten steel, it must be filled with guiding sand in the ladle nozzle. After the molten steel is refined, the ladle nozzle slide is opened, and the guiding sand flows out of the ladle nozzle and is discharged. The molten steel naturally flows out from the bottom nozzle of the ladle and is continuously cast into steel billets or ingots. After the molten steel is poured, the ladle is replaced with a new nozzle and filled with guiding sand for molten steel refining again. This process is repeated continuously, allowing the ladle to be reused multiple times, improving efficiency and reducing costs. The quality of the guiding sand filling is a very important factor in ensuring the quality of the molten steel.
[0003] Existing technology uses a steel pipe with the same diameter at both ends as a sand guide to fill the ladle nozzle with sand. However, the lower end of the sand guide is not easily aligned with the drain channel at the bottom of the ladle, causing the sand flowing downstream to accumulate on the bottom surface of the ladle. During the pouring process, the sand enters the molten steel and forms foreign inclusions, contaminating the molten steel. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a fine-tuning and centering device for a steel ladle drainage sand guide tube.
[0005] The fine-tuning and centering device for the steel ladle drainage sand guide provided by this utility model adopts the following technical solution:
[0006] A fine-tuning and centering device for a ladle drainage sand guide tube includes an installation platform, a fixed plate, a movable frame, a first translation component, a second translation component, and two guide rails. The installation platform is horizontally fixed above the ladle and has a guide hole for the drainage sand guide tube to pass through. The two guide rails are parallel to each other on the upper side of the installation platform, with the guide hole located between them. The movable frame is slidably horizontally positioned above the two guide rails and can slide along the length of the two guide rails. The fixed plate is vertically positioned above the installation platform. The guide rails are perpendicular to the plane of the fixed plate. The first translation component includes a first adjusting screw, an adjusting nut, and a first positioning pin. The first adjusting screw passes sequentially through the fixed plate and the movable frame along a direction parallel to the length of the guide rails and is threadedly connected to the fixed plate. The adjusting nut... A threaded connection is made to one end of the first adjusting screw that protrudes from the movable frame; the first positioning pin passes through the first adjusting screw to limit the relative movement between the first adjusting screw and the movable frame; the second translation assembly includes a support rod, a fixed half-ring, a movable half-ring, a sleeve, a locking element, and a second adjusting screw; the second adjusting screw is inserted into the movable frame from the outside in a direction perpendicular to the length of the guide rail and is threadedly engaged with the movable frame; the sleeve is coaxially sleeved on the end of the second adjusting screw that protrudes from the movable frame; the second adjusting screw and the sleeve can be locked together by the locking element; the fixed half-ring is fixedly connected to the support rod; the movable half-ring is detachably mounted on the support rod; the fixed half-ring and the movable half-ring are mated together, forming an installation space between them that can vertically encircle the drainage sand guide tube.
[0007] Optionally, the movable half-ring includes a ring body, a first ear plate, and a second ear plate; the ring body is half of a circular ring; the first ear plate and the second ear plate are respectively fixedly connected to the two ends of the ring body; the first ear plate is connected to the support rod by a movable bolt, so that the movable half-ring is hinged to the support rod by the movable bolt, and the axis of the movable bolt is the hinge axis; the second ear plate is connected to the support rod by a second locating pin.
[0008] Optionally, the second translation component further includes a guide tube; one end of the guide tube is fixedly connected to the inner wall of the movable frame and is coaxial with the support rod; one end of the support rod, which passes through the movable frame, is inserted into the guide tube and can slide along its own axis or rotate around its own axis within the guide tube.
[0009] Based on the above concept, this utility model also provides a sand-filling device, including the above-mentioned ladle sand-filling guide fine-tuning and centering device, and further including a crossbeam, a lifting device, a suspension cable, and a sand-filling guide; wherein, the crossbeam is fixedly mounted above the ladle; the lifting device is mounted on the crossbeam and connected to the upper end of the sand-filling guide via the suspension cable, which can drive the sand-filling guide to rise and fall; the ladle sand-filling guide fine-tuning and centering device is located between the lifting device and the ladle; the sand-filling guide descends to the upper water inlet of the ladle after passing through the ladle sand-filling guide fine-tuning and centering device.
[0010] Optionally, the drainage sand conduit includes a pipe body and a funnel disposed at the upper end of the pipe body; the funnel is conical, and its smaller diameter opening communicates with the upper end of the pipe body; the volume of the funnel is greater than the total volume of drainage sand required for the ladle.
[0011] Optionally, the drainage sand guide tube further includes a safety ring; the safety ring is sleeved on the outer wall of the tube body; the safety ring is located between the lower end of the tube body and the second translation component; the diameter of the safety ring is larger than the diameter of the installation space to limit the upward stroke of the drainage sand guide tube.
[0012] Optionally, the sand guide pipe further includes a flow guide shroud; the flow guide shroud is conical; the flow guide shroud is connected to the lower end opening of the pipe body, and its larger diameter opening faces the upper water inlet of the ladle, for concentrating the sand discharged from the lower end of the pipe body.
[0013] Optionally, the flow guide is fitted onto the outer wall of the tube body through its small-diameter opening and can slide along the axial direction of the tube body; the tube body is provided with a limiting member for restricting the sliding of the flow guide.
[0014] Optionally, the limiting component includes a limiting ring; the limiting ring is fixedly sleeved on the lower end of the tube body, and its outer diameter is larger than the diameter of the smaller opening of the flow guide, so that the flow guide cannot slip off from the lower end of the tube body.
[0015] Optionally, the lifting device includes an electric hoist; the electric hoist is located on the lower side of the crossbeam and is used to wind and unwind the hoisting cable.
[0016] As described above, the steel ladle drainage sand guide fine-tuning and centering device of this utility model has at least the following beneficial effects:
[0017] This utility model discloses a fine-tuning and centering device for the drainage sand guide tube in a ladle. A first adjusting screw adjusts the position of the drainage sand guide tube in a first direction, and a second adjusting screw adjusts its position in a second direction. Since both the first and second directions are horizontal and perpendicular to each other, the position of the drainage sand guide tube's axis can be precisely adjusted, allowing for convenient and accurate centering of the guide tube with the drain channel at the bottom of the ladle, thus improving the quality of the drainage sand filling. Attached Figure Description
[0018] Figure 1 This is a top view of an embodiment of the present invention, illustrating the structure of the fine-tuning and centering device for the steel ladle drainage sand guide.
[0019] Figure 2 This is a schematic diagram illustrating the structure of the fine-tuning and centering device for the steel ladle drainage sand guide tube in this embodiment of the present invention.
[0020] Reference numerals: 001, Fine-tuning and centering device for steel ladle drainage sand guide pipe; 1, Installation platform; 2, Fixing plate; 3, Movable frame; 4, Guide rail; 5, Guide hole; 6, First adjusting screw; 7, Adjusting nut; 8, First positioning pin; 9, Support rod; 10, Fixed half ring; 11, Movable half ring; 111, Ring body; 112, First ear plate; 1121, Movable bolt; 113, Second ear plate; 1131, Second positioning pin; 12, Sleeve; 13, Locking element; 14, Second adjusting screw; 15, Guide tube; 16, Crossbeam; 17, Lifting device; 18, Suspension cable; 19, Drainage sand guide pipe; 191, Pipe body; 192, Funnel; 193, Flow guide cover; 194, Safety ring. Detailed Implementation
[0021] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.
[0022] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.
[0023] Please refer to Figure 1 , 2 This utility model first discloses a fine-tuning and centering device for a steel ladle drainage sand guide tube, including an installation platform 1, a fixing plate 2, a movable frame 3, a first translation component, a second translation component, and two guide rails 4.
[0024] Specifically, the installation platform 1 is horizontally fixed directly above the steel ladle, and a guide hole 5 is provided on it for the sand drainage conduit 19 to pass through. The installation platform 1 can be constructed from steel plates, and workers can perform operations on it.
[0025] Two guide rails 4 are arranged parallel to each other on the upper side of the mounting platform 1, with the guide hole 5 located between them. The movable frame 3 is horizontally mounted on the upper side of the two guide rails 4 and can slide along the length of the two guide rails 4. The fixed plate 2 is vertically mounted on the upper side of the mounting platform 1. The guide rails 4 are perpendicular to the plane of the fixed plate 2. The sliding engagement between the movable frame 3 and the guide rails 4 can be achieved in various ways. For example, a groove is formed on the guide rail 4 along its length, and two sliders are provided on the lower side of the movable frame 3 corresponding to the two grooves. The two sliders are respectively embedded in their corresponding grooves. The sliding engagement between the movable frame 3 and the guide rails 4 can also be achieved through the cooperation of rollers with the guide rails 4. Preferably, in this embodiment, the movable frame 3 slides through the cooperation of sliders with the grooves on the guide rails 4.
[0026] The first translation component includes a first adjusting screw 6, an adjusting nut 7, and a first locating pin 8. The first adjusting screw 6 passes sequentially through the fixed plate 2 and the movable frame 3 along a direction parallel to the length of the guide rail 4, and is threadedly connected to the fixed plate 2. The adjusting nut 7 is threadedly connected to the end of the first adjusting screw 6 that extends out of the movable frame 3. The first locating pin 8 passes through the first adjusting screw 6 to limit the relative movement between the first adjusting screw 6 and the movable frame 3. After the first locating pin 8 is inserted into the first adjusting screw 6, it is located in the gap between the opposite sides of the movable frame 3 and the fixed plate 2, thus preventing interference with either the movable frame 3 or the fixed plate 2.
[0027] The working principle of the first translation component is as follows: Since the fixed plate 2 is fixed, and the first adjusting screw 6 is threadedly engaged with the fixed plate 2, turning the first adjusting screw 6 will cause it to move along a direction parallel to the length of the guide rail 4. To adjust the position of the movable frame 3 along the length of the guide rail 4, first loosen the adjusting nut 7, pull out the first positioning pin 8, and turn the first adjusting screw 6 to adjust its position. Then, move the movable frame 3 to the preset position. Finally, insert the first positioning pin 8 into the first adjusting screw 6 and reinstall the adjusting nut 7 into the first adjusting screw 6 to fix the position of the movable frame 3.
[0028] Please continue to refer to Figure 1 The second translational assembly includes a support rod 9, a fixed half-ring 10, a movable half-ring 11, a sleeve 12, a locking element 13, and a second adjusting screw 14. The second adjusting screw 14 inserts into the movable frame 3 from the outside inwards along the length of the vertical guide rail 4 and is threaded into the movable frame 3. The sleeve 12 is coaxially fitted onto the end of the second adjusting screw 14 that extends out of the movable frame 3. The second adjusting screw 14 and the sleeve 12 can be locked together by the locking element 13. The fixed half-ring 10 is fixedly connected to the support rod 9. The movable half-ring 11 is detachably mounted on the support rod 9. The fixed half-ring 10 and the movable half-ring 11 are mated, forming an installation space between them that allows the drainage sand guide tube 19 to be vertically encircled within it.
[0029] Taking the length direction of guide rail 4 as the first direction and the direction that is horizontal and perpendicular to the length direction of guide rail 4 as the second direction, the working principle of the second translation component is as follows: Loosen the locking piece 13 to allow relative sliding between the sleeve 12 and the second adjusting screw 14, then turn the second adjusting screw 14 to adjust the length of the second screw inserted into the movable frame 3. Then, adjust the position of the support rod 9 in the second direction by sliding it in the sleeve 12, thereby adjusting the position of the drainage sand guide tube 19 in the second direction. After adjustment, lock the sleeve 12 and the second adjusting screw 14 with the locking piece 13.
[0030] Specifically, the movable semi-ring 11 includes a ring body 111, a first ear plate 112, and a second ear plate 113. The ring body 111 is half of a circular ring. The first ear plate 112 and the second ear plate 113 are respectively fixedly connected to both ends of the ring body 111. The first ear plate 112 is connected to the support rod 9 by a movable bolt 1121, so that the movable semi-ring 11 is hinged to the support rod 9 by the movable bolt 1121, and the axis of the movable bolt 1121 is the hinge axis. The second ear plate 113 is connected to the support rod 9 by a second positioning pin 1131. In a preferred embodiment of this utility model, the axis of the movable bolt 1121 and the axis of the second positioning pin 1131 are both vertical.
[0031] A first receiving groove and a second receiving groove are respectively formed along the support rod 9 at the connection points with the first ear plate 112 and the second ear plate 113. The depth of the first receiving groove is adapted to the thickness of the first ear plate 112. The depth of the second receiving groove is adapted to the thickness of the second ear plate 113. This ensures that after the first ear plate 112 and the second ear plate 113 are connected to the support rod 9, they will not protrude from the upper surface of the support rod 9.
[0032] When installing the drainage sand guide tube 19 for the first time, first place the drainage sand guide tube 19 into the fixed half-ring 10, then install the movable half-ring 11 onto the support rod 9, and connect the first ear plate 112 to the support rod 9 through the movable bolt 1121, and connect the second ear plate 113 to the support rod 9 through the second positioning pin 1131, thus fixing the drainage sand guide tube 19. For subsequent disassembly and assembly of the drainage sand guide tube 19, simply pull out the second positioning pin 1131, and the movable half-ring 11 can be easily opened or closed using the movable bolt 1121 as a hinge axis, achieving quick disassembly and assembly of the drainage sand guide tube 19.
[0033] After the support rod 9 is inserted into the movable frame 3, its stability is insufficient due to the threaded engagement with the movable frame 3. Therefore, in a preferred embodiment of this invention, the second translation component further includes a guide tube 15. One end of the guide tube 15 is fixedly connected to the inner wall of the movable frame 3 and is coaxial with the support rod 9. The end of the support rod 9 that is inserted into the movable frame 3 is inserted into the guide tube 15 and can slide along its own axis or rotate around its own axis within the guide tube 15. The guide tube 15 can be a round tube or a square tube; a square tube is used in this embodiment. After the end of the support rod 9 is inserted into the movable frame 3, the support rod 9 neither affects its rotation nor causes its axis to tilt.
[0034] This utility model discloses a fine-tuning and centering device for the drainage sand guide tube of a steel ladle. The position of the drainage sand guide tube 19 in a first direction is adjusted by a first adjusting screw 6, and its position in a second direction is adjusted by a second adjusting screw 14. Since both the first and second directions are horizontal and perpendicular to each other, the position of the axis of the drainage sand guide tube 19 can be precisely adjusted, allowing for convenient and accurate centering of the drainage sand guide tube 19 with the drain channel at the bottom of the steel ladle, thus improving the quality of the drainage sand filling.
[0035] Secondly, please refer to Figure 2 This utility model also discloses a sand-filling device, including the aforementioned ladle sand-filling guide fine-tuning and centering device 001, and further including a crossbeam 16, a lifting device 17, a suspension cable 18, and a sand-filling guide 19. The crossbeam 16 is fixedly mounted above the ladle. The lifting device 17 is mounted on the crossbeam 16 and connected to the upper end of the sand-filling guide 19 via the suspension cable 18, which can drive the sand-filling guide 19 to rise and fall. The ladle sand-filling guide fine-tuning and centering device 001 is located between the lifting device 17 and the ladle. After passing through the ladle sand-filling guide fine-tuning and centering device 001, the sand-filling guide 19 descends to the upper inlet of the ladle.
[0036] Specifically, in this embodiment, the lifting device 17 is an electric hoist, which is located on the lower side of the crossbeam 16 and is used to wind and unwind the lifting cable 18. That is, one end of the lifting cable 18 is coiled inside the electric hoist, and the other end is connected to the upper end of the drainage sand conduit 19. The electric hoist has a simple structure, is easy to operate, safe and reliable, and is conducive to improving the efficiency of drainage sand filling. The lifting device 17 can also be an overhead crane, a winding machine, or other equipment with winding and unwinding functions.
[0037] The drainage sand conduit 19 has a small diameter, making it difficult for drainage sand to enter and prone to spillage during drainage. To facilitate the entry of drainage sand into the drainage sand conduit 19, it includes a pipe body 191 and a funnel 192 located at the upper end of the pipe body 191. The funnel 192 is conical, with its smaller diameter opening communicating with the upper end of the pipe body 191. The volume of the funnel 192 is larger than the total volume of drainage sand required for the ladle. The lower end of the lifting cable 18 can be connected to the funnel 192 via a hook.
[0038] When the diverting sand falls from the lower end of the diverting sand guide pipe 19, it needs to land precisely within the range of the ladle's inlet. Therefore, the diverting sand guide pipe 19 also includes a guide shroud 193. The guide shroud 193 is conical in shape. The guide shroud 193 is connected to the lower opening of the pipe body 191, with its larger diameter opening facing the ladle's inlet, used to collect the diverting sand discharged from the lower end of the pipe body 191. During operation, the guide shroud 193 can partially enter the ladle's inlet, allowing the diverting sand to directly enter the filling area, reducing sand spillage and waste.
[0039] Furthermore, the flow guide 193 is fitted onto the outer wall of the pipe body 191 through its smaller diameter opening and can slide along the axis of the pipe body 191. A limiting member is provided on the pipe body 191 to restrict the sliding of the flow guide 193. The flow guide 193 is designed to slide on the pipe body 191, allowing it to slide upwards when in contact with the ladle's water inlet, thereby reducing the likelihood of damage due to impact. The limiting member includes a limiting ring. The limiting ring is fixedly fitted onto the lower end of the pipe body 191, and its outer diameter is larger than the diameter of the smaller opening of the flow guide 193, preventing the flow guide 193 from slipping off the lower end of the pipe body 191. In other embodiments of this invention, the limiting member can also be other suitable components capable of preventing the flow guide 193 from slipping off the lower end of the pipe body 191.
[0040] On the other hand, the guide shroud 193 can slide on the tube body 191, and the limiting member can prevent the guide shroud 193 from slipping off the lower end of the tube body 191, so that the guide shroud 193 is always located at the lower end of the sand guide 19 during the rising process of the sand guide 19, which can reduce the situation where the sand guide 19 is thrown onto the bottom surface of the ladle during the rising process of the sand guide 19, thereby helping to improve the purity of the molten steel.
[0041] Please continue to refer to Figure 2 The drainage sand guide 19 also includes a safety ring 194. The safety ring 194 is fitted onto the outer wall of the tube body 191. The safety ring 194 is located between the lower end of the tube body 191 and the second translational assembly. The diameter of the safety ring 194 is larger than the diameter of the installation space to limit the upward stroke of the drainage sand guide 19. The safety ring 194 prevents the drainage sand guide 19 from rising further after it contacts the edge of the lower opening of the installation space, thus avoiding the risk of the drainage sand guide 19 falling out of the installation space due to excessive rising height and improving the safety of the drainage sand guide 19 during ascent.
[0042] The sand-filling device of this invention utilizes the aforementioned ladle sand-filling guide pipe fine-tuning and centering device 001 to accurately and quickly adjust the position of the sand-filling guide pipe 19. This reduces the likelihood of the sand-filling guide pipe 19 shaking and failing to accurately enter the ladle water inlet, improving the stability during sand-filling and reducing waste caused by sand spillage. The device also has the function of fixing the sand-filling guide pipe 19, preventing it from falling and causing danger.
[0043] Secondly, the diversion sand filling device of this utility model can effectively improve the filling quality of the diversion sand at the ladle nozzle, achieve the precise control requirement of filling the diversion sand at the ladle nozzle into a bun shape, prevent the diversion sand from accumulating at the edge of the ladle nozzle, and improve the self-opening rate of the diversion sand at the ladle nozzle.
[0044] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A fine-tuning and centering device for a steel ladle drainage sand guide tube, characterized in that: It includes an installation platform (1), a fixed plate (2), a movable frame (3), a first translation component, a second translation component, and two guide rails (4); among which, The installation platform (1) is horizontally fixed above the ladle, and a guide hole (5) is provided on it for the sand drainage pipe to pass through; two guide rails (4) are arranged parallel to each other on the upper side of the installation platform (1), and the guide hole (5) is located between the two. The movable frame (3) is slidably and horizontally arranged on the upper side of the two guide rails (4), and can slide along the length direction of the two guide rails (4); the fixing plate (2) is vertically arranged on the upper side of the mounting platform (1); the guide rails (4) are perpendicular to the plane where the fixing plate (2) is located; The first translation component includes a first adjusting screw (6), an adjusting nut (7), and a first positioning pin (8); the first adjusting screw (6) passes sequentially through the fixed plate (2) and the movable frame (3) in a direction parallel to the length direction of the guide rail (4), and is threadedly connected to the fixed plate (2); the adjusting nut (7) is threadedly connected to one end of the first adjusting screw (6) that extends out of the movable frame (3); the first positioning pin (8) passes through the first adjusting screw (6) to limit the relative movement between the first adjusting screw (6) and the movable frame (3); The second translation component includes a support rod (9), a fixed half-ring (10), a movable half-ring (11), a sleeve (12), a locking element (13), and a second adjusting screw (14); the second adjusting screw (14) is inserted into the movable frame (3) from the outside to the inside along a direction perpendicular to the length of the guide rail (4), and is threadedly engaged with the movable frame (3); the sleeve (12) is coaxially sleeved on the end of the second adjusting screw (14) that extends out of the movable frame (3); the second adjusting screw (14) and the sleeve (12) can be locked together by the locking element (13); The fixed half-ring (10) is fixedly connected to the support rod (9); the movable half-ring (11) is detachably mounted on the support rod (9); the fixed half-ring (10) and the movable half-ring (11) are connected to form an installation space between them in which the drainage sand guide can be vertically embraced.
2. The fine-tuning and centering device for the steel ladle drainage sand guide tube according to claim 1, characterized in that: The movable semi-ring (11) includes a ring body (111), a first ear plate (112), and a second ear plate (113); The ring body (111) is half of a circular ring; the first ear plate (112) and the second ear plate (113) are respectively fixedly connected to the two ends of the ring body (111); The first ear plate (112) is connected to the support rod (9) by a movable bolt (1121) so that the movable half ring (11) is hinged to the support rod (9) by the movable bolt (1121); the axis of the movable bolt (1121) is the hinge axis; The second ear plate (113) is connected to the support rod (9) via the second positioning pin (1131).
3. The fine-tuning and centering device for the steel ladle drainage sand guide tube according to claim 1, characterized in that: The second translation component also includes a guide tube (15); One end of the guide tube (15) is fixedly connected to the inner wall of the movable frame (3) and is coaxial with the support rod (9); one end of the support rod (9) that passes through the movable frame (3) is inserted into the guide tube (15) and can slide along its own axis or rotate around its own axis within the guide tube (15).
4. A sand-filling device for drainage, characterized in that, The device includes the fine-tuning and centering device for the ladle drainage sand guide as described in any one of claims 1-3, and further includes a crossbeam (16), a lifting device (17), a suspension cable (18), and a drainage sand guide (19); wherein, The crossbeam (16) is fixedly mounted above the steel ladle; The lifting device (17) is installed on the crossbeam (16) and is connected to the upper end of the drainage sand conduit (19) through the suspension cable (18), which can drive the drainage sand conduit to rise and fall. The fine-tuning and centering device for the ladle drainage sand guide pipe is located between the lifting device (17) and the ladle; the drainage sand guide pipe (19) extends down to the upper water inlet of the ladle after passing through the fine-tuning and centering device for the ladle drainage sand guide pipe.
5. The sand-filling device according to claim 4, characterized in that: The drainage sand conduit (19) includes a tube body (191) and a funnel (192) disposed at the upper end of the tube body (191); The funnel (192) is conical in shape, and its smaller diameter opening is connected to the upper end of the tube (191); the volume of the funnel (192) is greater than the total volume of the drainage sand required for the ladle.
6. The sand-filling device according to claim 5, characterized in that, The drainage sand guide (19) also includes a safety ring (194); The safety ring (194) is sleeved on the outer wall of the tube body (191); the safety ring (194) is located between the lower end of the tube body (191) and the second translation component; the diameter of the safety ring (194) is larger than the diameter of the installation space to limit the upward stroke of the drainage sand guide tube (19).
7. The sand-filling device according to claim 6, characterized in that, The drainage sand conduit (19) also includes a flow guide shroud (193); The flow guide shroud (193) is conical in shape; the flow guide shroud (193) is connected to the lower opening of the pipe body (191), and its larger diameter opening faces the upper water inlet of the ladle, which is used to concentrate the drainage sand discharged from the lower end of the pipe body (191).
8. The sand-filling device according to claim 7, characterized in that, The flow guide (193) is fitted onto the outer wall of the tube (191) through its small diameter opening and can slide on the tube (191) along the axial direction of the tube (191); The tube body (191) is provided with a limiting member for restricting the sliding of the flow guide (193).
9. The sand-filling device according to claim 8, characterized in that, The limiting component includes a limiting ring; The limiting ring is fixedly sleeved on the lower end of the tube body (191), and its outer diameter is larger than the diameter of the smaller opening of the flow guide (193) so that the flow guide (193) cannot slip off from the lower end of the tube body (191).
10. The sand-filling device according to claim 4, characterized in that, The lifting device (17) includes an electric hoist; The electric hoist is located on the lower side of the crossbeam (16) and is used to wind and unwind the hoisting cable (18).