A method and system for aligning a tundish with a mold

Abstract

The present invention discloses a method and a system for centering a tundish and a mold, including: taking both sides of the center line of the wide face of the tundish car as target sides, and performing the following target steps: obtaining the first actual shortest distance between the first reference position on the target side and the calibration plane and the theoretical shortest distance between the first reference position and the calibration plane; determining whether there is uneven wear of the wheels on the target side according to the first actual shortest distance and the theoretical shortest distance; if so, determining the wear offset of the wheels on the target side according to the first actual shortest distance and the theoretical shortest distance; and adjusting and limiting the position of the tundish on the target side in the tundish car; after performing the target steps on both sides of the center line of the wide face of the tundish car, centering of the tundish and the mold is achieved. After determining the uneven wear of the wheels of the tundish car, the present invention can overcome the influence of the uneven wear of the wheels of the tundish car on the centering of the tundish to the mold by adjusting and limiting the position of the tundish.

Description

Technical Field

[0001] The present invention relates to the technical field of metallurgy, and particularly to a method and system for aligning a tundish with a mold. Background Art

[0002] The tundish is an intermediate device located between the rotary tower and the mold, mainly used to hold molten steel. One or more nozzles are designed below the tundish. Before casting, it is necessary to use the transverse and longitudinal movements of the tundish carriage to align the tundish on the tundish carriage, so that the tundish nozzle is aligned in the width and length directions of the mold, thereby avoiding the occurrence of molten steel flow deviation caused by misalignment of the nozzle during the casting process and improving the quality of the slab product.

[0003] Under normal conditions, since the width of the mold does not change and its position is relatively fixed, the tundish is generally aligned in the width direction of the mold at the baking position. However, due to uneven wear of the traveling wheels of the tundish carriage, the tundish on the tundish carriage will be displaced in the width direction of the mold, resulting in misalignment of the tundish nozzle in the width direction of the mold, causing molten steel flow deviation and disorder, generating batch quality defects of the slab. In severe cases, it may cause accidents such as breakage of the nozzle when the tundish nozzle is inserted into the mold, resulting in inability to start casting normally, which has a very adverse impact on the stable operation of production.

[0004] Therefore, there is an urgent need for a technology that can align the tundish with the mold even when the wheels are unevenly worn. Summary of the Invention

[0005] By providing a method and system for aligning a tundish with a mold, the embodiments of the present application solve the technical problem in the prior art that the tundish and the mold cannot be aligned when the wheels are unevenly worn, and achieve the technical effect of aligning the tundish with the mold even when the wheels are unevenly worn.

[0006] In a first aspect, the present application provides a method for aligning a tundish with a mold, the method comprising:

[0007] Taking both sides of the center line of the wide face of the tundish carriage as target sides, and performing the following target steps:

[0008] Obtaining a first actual shortest distance between a first reference position on the target side and a calibration plane, and obtaining a theoretical shortest distance between the first reference position and the calibration plane; the calibration plane refers to a plane parallel to the wide face of the mold;

[0009] Determining whether there is uneven wear of the wheels on the target side according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position;

[0010] If so, determine the wheel wear offset on the target side according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position;

[0011] Adjust and limit the tundish position on the target side in the tundish carriage according to the wheel wear offset;

[0012] After performing the target steps on both sides of the wide-face center line of the tundish carriage, the alignment of the tundish and the mold is achieved.

[0013] Further, obtaining the first actual shortest distance between the first reference position on the target side and the calibration plane includes:

[0014] Measure the first actual shortest distance between the first reference position and the calibration plane by a distance measuring device.

[0015] Further, obtaining the theoretical shortest distance between the first reference position and the calibration plane includes:

[0016] Determine the theoretical shortest distance between the first reference position and the calibration plane according to the specific position of the first reference position on the tundish carriage, the dimensional parameters of the tundish carriage, and the theoretical positional relationship between the calibration plane and the tundish carriage.

[0017] Further, determining whether there is uneven wear of the wheels on the target side according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position includes:

[0018] If the absolute value of the difference between the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position is less than the first preset difference, determine that there is no uneven wear of the wheels on the target side;

[0019] If the absolute value of the difference between the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position is greater than the first preset difference, determine that there is uneven wear of the wheels on the target side.

[0020] Further, adjusting and limiting the tundish position on the target side in the tundish carriage according to the wheel wear offset includes:

[0021] Control the position fine-tuning device in the tundish carriage to reserve a preset space for the tundish according to the wheel wear offset, and control the tundish to be placed in the preset space to achieve the adjustment and limitation of the tundish position on the target side; or,

[0022] Control the position fine-tuning device in the tundish carriage to drive the tundish to move in the tundish carriage according to the wheel wear offset to achieve the adjustment and limitation of the tundish position on the target side.

[0023] Further, before the tundish carriage reaches the casting position, perform the target steps, and the target steps further include:

[0024] After the tundish carriage moves to the casting position, the target steps further include:

[0025] Obtain the third actual shortest distance between the second reference position and the calibration plane;

[0026] Determine whether the track where the tundish carriage is located is deformed according to the second actual shortest distance and the third actual shortest distance;

[0027] If so, determine the track deformation offset of the target side according to the second actual shortest distance and the third actual shortest distance;

[0028] Adjust and limit the position of the tundish on the target side in the tundish carriage according to the track deformation offset.

[0029] In a second aspect, the present application provides a centering system for a tundish and a mold, the system including:

[0030] At least two distance measuring devices, which are respectively arranged on both sides of the center line of the wide face of the tundish carriage, and the target distance measuring device on each side is used to measure the first actual shortest distance between its own position and the calibration plane; the calibration plane refers to a plane parallel to the wide face of the mold;

[0031] A controller, which is connected to each distance measuring device, is used to receive the first actual shortest distance sent by the target distance measuring device on each side, and obtain the theoretical shortest distance between the position where the target distance measuring device on each side is located and the calibration plane; according to the first actual shortest distance and the theoretical shortest distance corresponding to the target distance measuring device on each side, determine whether there is uneven wear of the wheels on each side of the tundish carriage. If so, determine the wheel wear offset of that side according to the first actual shortest distance and the theoretical shortest distance corresponding to the target distance measuring device on each side;

[0032] At least two position fine-tuning devices, which are respectively arranged on both sides of the center line of the wide face of the tundish carriage and are respectively connected to the controller. The position fine-tuning device on each side is used to receive the drive signal of that side sent by the controller, and adjust and limit the position of the tundish on that side in the tundish carriage according to the wheel wear offset included in the drive signal corresponding to each side, so as to achieve centering of the tundish and the mold.

[0033] Furthermore, a limiting rim is arranged on the wheels of the tundish carriage.

[0034] Furthermore, if the at least two position fine-tuning devices include four position fine-tuning devices, two of the position fine-tuning devices are arranged on one wide-face wall of the tundish carriage, and the other two position fine-tuning devices are arranged on the other wide-face wall of the tundish carriage, and the two position fine-tuning devices on the same wide-face wall are respectively on both sides of the center line of the wide face of the tundish carriage.

[0035] Further, before the tundish car reaches the casting position, the controller is further configured to: receive the second actual shortest distance measured by the target distance measuring device on each side between its own position and the calibration plane;

[0036] After the tundish car moves to the casting position, the controller is further configured to: receive the third actual shortest distance measured by the target distance measuring device on each side between its own position and the calibration plane; determine whether the track where the tundish car is located is deformed according to the second actual shortest distance and the third actual shortest distance; if so, determine the track deformation offset on each side of the tundish car according to the second actual shortest distance and the third actual shortest distance;

[0037] The position fine-tuning device on each side is further configured to receive the driving signal of the corresponding side sent by the controller, and adjust and limit the position of the tundish on the corresponding side in the tundish car according to the track deformation offset included in the driving signal of each side, so as to realize the alignment of the tundish and the mold.

[0038] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0039] In the present application, the left side and the right side of the tundish car are respectively used as the target sides, and the first actual shortest distance and the theoretical shortest distance between the first reference position of the target side and the calibration plane are obtained. Whether the wheels on the target side are unevenly worn is determined by the first actual shortest distance and the theoretical shortest distance of the target side. If the wheels on the target side are unevenly worn, the wheel wear offset of the target side is determined according to the first actual shortest distance and the theoretical shortest distance of the target side, and the position of the tundish on the target side of the tundish car is adjusted and limited according to the wheel wear offset of the target side. After the target steps are executed on both the left side and the right side of the tundish car, that is, the positions at both ends of the tundish in the tundish car are adjusted and limited, the influence of the uneven wear of the wheels of the tundish car on the alignment of the tundish and the mold can be overcome, so that the tundish can be aligned with the mold.

[0040] The present application also determines whether the corresponding track has been deformed (or uneven in height) when the tundish car moves from the current position to the casting position by the second actual shortest distance between the second reference position of the target side before reaching the casting position and the calibration plane and the third actual shortest distance between the second reference position of the target side and the calibration plane after the tundish car moves to the casting position. If the track where the wheels of the tundish car are located has been deformed (or uneven in height), the track deformation offset of the target side is determined according to the second actual shortest distance and the third actual shortest distance, and the position of the tundish on the target side is adjusted and limited according to the track deformation offset of the target side. After the positions of the tundishes on the left side and the right side in the tundish car are adjusted and limited, the influence of the uneven height of the track on the alignment of the tundish and the mold can be overcome, so that the tundish can be aligned with the mold. Description of the Drawings

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0042] Figure 1 It is a schematic flow chart of a method for aligning a tundish with a mold provided by this application;

[0043] Figure 2 It is a top view of a ladle car provided by this application;

[0044] Figure 3 It is a top view of a ladle car with a tundish placed thereon provided by this application;

[0045] Figure 4 It is a top view of a ladle car at the baking position and the casting position respectively provided by this application;

[0046] Figure 5 It is a schematic diagram of the first alignment system for a tundish and a mold provided by this application;

[0047] Figure 6 It is a schematic diagram of the second alignment system for a tundish and a mold provided by this application;

[0048] Figure 7 It is a schematic diagram of the third alignment system for a tundish and a mold provided by this application.

[0049] Reference numerals:

[0050] 1 - Distance measuring device, 2 - Ladle car wheel, 3 - Rail, 4 - Tundish, 5 - Limiting flange, 6, 7, 8, 9, 10, 11, 12, 13 - Position fine-tuning device, 14 - Stop limit, 15, 16 - Distance measuring device, 17 - Mold, 18 - Ladle car, L1 - Plane where the vertical center lines corresponding to the two wide faces of the ladle car are located, L2 - Calibration plane, L3 - Center line. Detailed implementation manners

[0051] By providing a method for aligning a tundish with a mold in the embodiments of this application, the technical problem in the prior art that the tundish 4 and the mold 17 cannot be aligned when the wheels 2 are unevenly worn is solved.

[0052] The technical solutions of the embodiments of this application to solve the above technical problems are generally as follows:

[0053] A method for aligning a tundish with a mold, the method comprising: taking both sides of the center line of the wide face of the tundish car 18 as target sides, and performing the following target steps: obtaining a first actual shortest distance between a first reference position of the target side and a calibration plane L2, and obtaining a theoretical shortest distance between the first reference position and the calibration plane L2; the calibration plane L2 refers to a plane parallel to the wide face of the mold 17; determining whether there is uneven wear of the wheels 2 on the target side according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position; if so, determining the wheel wear offset of the target side according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position; adjusting and limiting the position of the tundish on the target side in the tundish car 18 according to the wheel wear offset; after performing the target steps on both sides of the center line of the wide face of the tundish car 18, the alignment of the tundish and the mold 17 is achieved.

[0054] In this application, by taking the left and right sides of the tundish car 18 as target sides respectively, and obtaining the first actual shortest distance and the theoretical shortest distance between the first reference position of the target side and the calibration plane L2, it is determined whether the wheels 2 on the target side are unevenly worn through the first actual shortest distance and the theoretical shortest distance of the target side. If the wheels 2 on the target side are unevenly worn, the wheel wear offset of the target side is determined according to the first actual shortest distance and the theoretical shortest distance of the target side, and the position of the tundish on the target side in the tundish car 18 is adjusted and limited according to the wheel wear offset of the target side. After performing the target steps on both the left and right sides of the tundish car 18, that is, adjusting and limiting the positions of both ends of the tundish in the tundish car 18, the influence of the uneven wear of the wheels 2 of the tundish car 18 on the alignment of the tundish 4 with the mold 17 can be overcome, enabling the tundish 4 to be aligned with the mold 17.

[0055] This application also determines whether the corresponding track has been deformed (or uneven) when the tundish car 18 moves from the current position to the casting position through the second actual shortest distance between the second reference position corresponding to the target side before reaching the casting position and the calibration plane L2, and the third actual shortest distance between the second reference position of the target side and the calibration plane L2 after the tundish car 18 moves to the casting position. If the track where the wheels 2 of the tundish car 18 are located has been deformed (or uneven), the track deformation offset of the target side is determined according to the second actual shortest distance and the third actual shortest distance, and the position of the tundish on the target side is adjusted and limited according to the track deformation offset of the target side. After adjusting and limiting the positions of the tundish on both the left and right sides in the tundish car 18, the influence of the uneven track on the alignment of the tundish 4 with the mold 17 can be overcome, so that the tundish 4 can be aligned with the mold 17.

[0056] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0057] First, it should be noted that the term "and / or" appearing in this text is merely a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this text, the character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0058] This application provides a Figure 1 centering method for a tundish and a mold as shown, and the method includes step S11.

[0059] Step S11: Take both sides of the center line of the wide face of the tundish carriage (the tundish carriage refers to the carriage for carrying the tundish) as the target sides, and perform the following target steps. The target steps include steps S110 - S113. After performing the target steps on both sides of the center line of the wide face of the tundish carriage, the centering of the tundish and the mold is achieved.

[0060] Step S110: Obtain the first actual shortest distance between the first reference position on the target side and the calibration plane, and obtain the theoretical shortest distance between the first reference position and the calibration plane; the calibration plane refers to a plane parallel to the wide face of the mold.

[0061] Step S111: Determine whether there is uneven wear of the wheels on the target side according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position.

[0062] Step S112: If so, determine the wear offset of the wheels on the target side according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position.

[0063] Step S113: Adjust and limit the position of the tundish in the tundish carriage on the target side according to the wheel wear offset.

[0064] Regarding step S11, take both sides of the center line of the wide face of the tundish carriage as the target sides, and perform the target steps. The target steps include steps S110 - S113.

[0065] The wide face of the tundish carriage 18 refers to the side of the carriage wall parallel to the track 3 where it is located (compared with other sides not parallel to the track 3, this side is wider, so it is recorded as the wide face), and the center line of the wide face of the tundish carriage 18 refers to the vertical center line on the wide face side. As Figure 2As shown in the figure, it is a top view schematic diagram of a certain tundish car 18. L1 is the plane where the vertical center lines corresponding to the two wide faces of the tundish car 18 are located. L1 divides the tundish car 18 into left and right parts from the wide face center line (which can be denoted as the left side of the tundish car 18 and the right side of the tundish car 18). For the left side of the tundish car 18 and the right side of the tundish car 18, the target steps (i.e., steps S110 - step S113) are respectively executed to adjust the position of the tundish 4 in the tundish car 18 ( Figure 2 The tundish 4 is not shown), so as to overcome the problem that the tundish 4 cannot be centered with the mold 17 due to uneven wear of the wheels 2 of the tundish car 18. The principle of how to overcome the problem that the tundish 4 cannot be centered with the mold 17 due to uneven wear of the wheels 2 of the tundish car 18 will be described in the subsequent process of describing steps S110 - step S113.

[0066] The wide face center line L1 divides the top view of the tundish car 18 as shown in Figure 2 into the left side of the tundish car 18 and the right side of the tundish car 18 ( Figure 2 The mold 17 is not shown). The left side of the tundish car 18 and the right side of the tundish car 18 are respectively used as the target sides, and the target steps S110 - S113 are respectively executed for each target side.

[0067] Furthermore, both the left side of the tundish car 18 and the right side of the tundish car 18 need to execute the target steps S110 - S113. It can be that the left side of the tundish car 18 executes the target steps S110 - S113 first, or the right side of the tundish car 18 executes the target steps S110 - S113 first, or the left side of the tundish car 18 and the right side of the tundish car 18 execute the target steps S110 - S113 simultaneously. There is no limit here.

[0068]

Explanation of Executing Steps S110 - Step S113 for the Left Side of the Tundish Car 18

[0069] Regarding step S110, obtain the first actual shortest distance between the first reference position of the target side and the calibration plane, and obtain the theoretical shortest distance between the first reference position and the calibration plane; the calibration plane L2 is the plane parallel to the wide face of the mold 17.

[0070] The wide face of the mold 17 refers to the wider side surface. Usually, the wide face of the mold 17 is basically parallel to the wide face of the tundish car 18. The calibration plane L2 is the plane parallel to the wide face of the mold 17. As shown in Figure 3 set L2 as the calibration plane ( Figure 3 The mold 17 is not shown in the figure).

[0071] Relative to the wide face of the mold 17, there is also the narrow face of the mold 17. The purpose of this embodiment is to align the mold 17 with the tundish 4, that is, to make the vertical plane where the center line on the narrow face side of the mold 17 coincide with the vertical plane where the center line L3 on the narrow face side of the tundish 4 is located (the coincidence here is not a strict coincidence and there can be a certain error).

[0072] The left side of the ladle car 18 is the target side. A first reference position is specified on the target side. The first reference position can be any position on the left body part of the ladle car 18. Regarding the distance between the first reference position and the calibration plane L2, it specifically includes the measured distance and the theoretical distance. The measured distance is the first actual shortest distance (i.e., the perpendicular distance) between the first reference position and the calibration plane L2 measured by the distance measuring device 1 (or other measuring methods).

[0073] The theoretical distance is determined according to the specific position of the first reference position on the ladle car 18, the dimensional parameters of the ladle car 18, and the theoretical position relationship between the calibration plane L2 and the ladle car 18. That is to say, the theoretical distance is the corresponding distance without considering the wear of the wheels 2 of the ladle car 18.

[0074] For example, as Figure 3 shown, taking point K as the first reference position as an example for illustration, the distance measuring device 1 can directly measure the first actual shortest distance between point K and the calibration plane L2. In addition, the position of point K on the ladle car 18, the dimensional parameters of the ladle car 18, and the shortest distance between the ladle car 18 and the calibration plane L2 are currently known. Among them, the shortest distance between point K and the side wall of the ladle car 18 close to the calibration plane L2 is 5m, and the shortest distance between the ladle car 18 and the calibration plane L2 is 2m. Furthermore, the theoretical shortest distance between point K and the calibration plane L2 can be theoretically obtained as 7m based on 5m and 2m.

[0075] Regarding step S111, based on the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position, determine whether there is uneven wear of the wheels on the target side.

[0076] After determining the first actual shortest distance and the theoretical shortest distance of the first reference position on the left side of the ladle car 18, determine whether there is uneven wear of the wheels 2 on the left side of the ladle car 18 according to the first actual shortest distance and the theoretical shortest distance of the first reference position on the left side of the ladle car 18. The specific method is as follows:

[0077] If the absolute value of the difference between the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position is less than the first preset difference, it is determined that there is no uneven wear of the wheels 2 on the target side.

[0078] If the absolute value of the difference between the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position is greater than the first preset difference, it is determined that the wheels 2 on the target side are unevenly worn.

[0079] Taking the K point on the left side of the tundish car 18 shown above Figure 3 as an example (i.e., the K point is used as the first reference position on the left side of the tundish car 18), the first preset difference is 0.05 m, the theoretical shortest distance of the K point is 7 m. If the first actual shortest distance of the K point is 6.85 m, the absolute value of the difference between the first actual shortest distance and the theoretical shortest distance of the K point is |6.85 m - 7 m| = 0.15 > 0.05 m, then it is determined that the wheels 2 on the left side of the tundish car 18 are unevenly worn; if the first actual shortest distance of the K point is 7.01 m, the absolute value of the difference between the first actual shortest distance and the theoretical shortest distance of the K point is |7.01 m - 7 m| = 0.01 < 0.05 m, then it is determined that the wheels 2 on the left side of the tundish car 18 are not unevenly worn.

[0080] It should be noted that when the absolute value of the difference between the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position on the left side of the tundish car 18 is less than the first preset difference, the wheels 2 on the left side of the tundish car 18 may also be unevenly worn, but the degree of uneven wear does not affect the alignment of the tundish 4 on the left side with the medium mold 17 (or its influence degree can be ignored, Figure 3 the mold 17 is not shown), and this situation is also recorded as the wheels 2 on the left side of the tundish car 18 not being unevenly worn.

[0081] The preset difference can be set according to the actual situation. If a high precision requirement for the alignment of the tundish 4 and the mold 17 is required, the preset difference can be set to relatively small values such as 0.05 m, 0.03 m, 0.01 m, 0 m, etc.

[0082] If the wheels 2 on the left side of the tundish car 18 are not unevenly worn, it means that the wheels 2 on the left side of the tundish 4 do not affect the alignment of the tundish 4 with the mold 17, and thus there is no need to continue executing steps S112 - S113 for the left side of the tundish 4. If the wheels 2 on the left side of the tundish car 18 are unevenly worn, then steps S112 - S113 are continued for the left side of the tundish 4.

[0083] Regarding step S112, if the wheels on the target side of the tundish car 18 are unevenly worn, then according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position, the wear offset of the wheels on the target side is determined.

[0084] Taking such as Figure 3Taking point K on the left side of the mid-sized package car 18 as an example (i.e., point K is used as the first reference position on the left side of the mid-sized package car 18), the theoretical shortest distance between point K and the calibration plane L2 is 7m, the first actual shortest distance between point K and the calibration plane L2 is 6.85m, the first preset difference is 0.05m, and the absolute value of the difference between the first actual shortest distance and the theoretical shortest distance of point K is |6.85m-7m|=0.15m>0.05m, indicating that the wheel 2 on the left side of the mid-sized package car 18 is unevenly worn.

[0085] The wheel wear deviation on the left side of the medium-sized truck 18 is 6.85m-7m=-0.15. Figure 3 It can be seen that the wheel 2 on the left side of the middle package car 18 is unevenly worn, causing the middle package car 18 to be tilted downward as a whole (here, downward refers to Figure 3 The top view of the mid-sized truck 18 shown in the figure is offset by 0.15 m (that is, the left side of the mid-sized truck 18 as a whole is closer to the calibration plane L2 by 0.15 m. If the wheel wear offset is a positive value, it means that the left side of the mid-sized truck 18 is offset upward as a whole).

[0086] Step S113, adjusting and limiting the position of the tundish 4 on the target side in the tundish car according to the wheel wear deviation.

[0087] The specific method of adjusting and limiting the position of the tundish 4 on the target side in the tundish car 18 can refer to [Method 1] or [Method 2].

[0088]

Method 1

[0089] The position fine-tuning device in the tundish car 18 is controlled to reserve a preset space for the tundish 4 according to the wheel wear deviation, and the tundish 4 is controlled to be placed in the preset space to achieve the adjustment limit of the position of the tundish 4 on the target side.

[0090] In [Method 1], there are {Method 1} and {Method 2}.

[0091] {Method 1}

[0092] When the left side of the middle ladle car 18 is the target measurement, the position fine-tuning device on the left side of the middle ladle car 18 is controlled to reserve a preset space for the tundish 4 according to the wheel wear offset on the left side of the middle ladle car 18, and then the tundish 4 is controlled to be placed in the preset space. Then, according to the size of the middle ladle car 18, the size of the tundish 4 and the wheel wear offset on the left side of the middle ladle car 18, the theoretical elongation of the position fine-tuning device on the left side of the middle ladle car 18 is determined, and the position fine-tuning device on the left side of the middle ladle car 18 is controlled to be extended according to the theoretical elongation, thereby realizing the adjustment limit of the position of the tundish 4 on the left side of the middle ladle car 18.

[0093] {Method 2}

[0094] When the left side of the tundish car 18 is the target side for timing, based on the dimensions of the tundish car 18, the dimensions of the tundish 4, and the wear offset of the wheels on the left side of the tundish car 18, determine the theoretical elongation of the position fine-tuning device on the left side of the tundish car 18. After controlling the position fine-tuning device on the left side of the tundish car 18 to elongate according to the theoretical elongation, control the tundish 4 to be placed within the preset space to achieve the adjustment and limit of the position of the tundish 4 on the left side of the tundish car 18.

[0095]

Method 2

[0096] Control the position fine-tuning device within the tundish car 18 to drive the tundish 4 to move within the tundish car 18 according to the wheel wear offset, so as to achieve the adjustment and limit of the position of the tundish 4 on the target side.

[0097] When the left side of the tundish car 18 is the target side for timing, after the tundish 4 has been placed within the tundish car 18, based on the dimensions of the tundish car 18, the dimensions of the tundish 4, and the wear offset of the wheels on the left side of the tundish car 18, determine the theoretical elongation of the position fine-tuning device on the left side of the tundish car 18. Control the position fine-tuning device on the left side of the tundish car 18 to elongate according to the theoretical elongation, and control the tundish 4 to be placed within the preset space to achieve the adjustment and limit of the position of the tundish 4 on the left side of the tundish car 18.

[0098]

Explanation of performing steps S110 - S113 for the right side of the tundish car 18

[0099] The method of performing steps S110 - S113 for the right side of the tundish car 18 is similar to the method of performing steps S110 - S113 for the left side of the tundish car 18 above. Specifically, it can refer to

Explanation of performing steps S110 - S113 for the left side of the tundish car 18

[0100] More preferably, when the left side of the tundish car 18 needs to perform "step S113" and the right side of the tundish car 18 also needs to perform "step S113" (that is, the wheels 2 on both the left and right sides of the tundish car 18 have uneven wear), the left and right sides of the tundish car 18 need to simultaneously perform "step S113, adjust and limit the position of the tundish 4 on the target side within the tundish car 18 according to the wheel wear offset" to ensure that the displacements at both ends will not affect each other.

[0101] On the premise that the wheels 2 on both the left and right sides of the tundish car 18 have uneven wear, compared with performing "step S113" on the left side of the tundish car 18 first or performing "step S113" on the right side of the tundish car 18 first, simultaneously performing "step S113" on the left and right sides of the tundish car 18 respectively can save the time of the tundish 4 aligning with the mold 17, improve the efficiency of the tundish 4 aligning with the mold 17, and thus improve the production efficiency.

[0102] After the target steps are executed on both sides of the center line of the wide surface of the tundish car 18, the tundish 4 and the mold 17 are centered. That is, after steps S110 - S113 are executed for both the left side and the right side of the tundish car 18, the influence of uneven wear of the wheels 2 of the tundish car 18 on the centering of the tundish 4 with the mold 17 is overcome, and the tundish 4 and the mold 17 are centered.

[0103] The above steps S110 - S113 can overcome the defect of misalignment caused by uneven wear of the wheels 2 of the tundish car 18. When executing steps S110 - S113, it can be carried out when the tundish car 18 is in the casting position, or it can be carried out before the tundish car 18 reaches the casting position. When steps S110 - S113 are executed when the tundish car 18 is in the casting position, the centering of the mold 17 and the tundish 4 can be directly achieved. However, when steps S110 - S113 are implemented before the tundish car 18 reaches the casting position, the influence of the deformation of the track 3 where the wheels 2 of the tundish car 18 are located on the centering also needs to be considered. In order to overcome the influence of the deformation of the track 3 where the wheels 2 of the tundish car 18 are located on the centering, steps S01 - S05 are provided in this embodiment.

[0104] It should be emphasized that when executing steps S01 - S05 and steps S110 - S113, the tundish car 18 needs to be in the same position. And in most actual situations, step S01 can be executed at the baking position. Steps S110 - S113 can be executed first, or steps S01 - S05 can be executed first, and there is no restriction here.

[0105] Furthermore, when executing steps S01 - S05 for the left side and the right side of the tundish car 18, the tundish car 18 also needs to be in the same position. But specifically whether steps S01 - S05 are executed first on the left side of the tundish car 18, or steps S01 - S05 are executed first on the right side of the tundish car 18, or steps S01 - S05 are executed simultaneously on the left side and the right side of the tundish car 18 can be unrestricted.

[0106] Step S01, obtain the second actual shortest distance between the second reference position on the target side and the calibration plane.

[0107] After the tundish car 18 moves to the casting position, steps S02 - S05 are also included.

[0108] Step S02, obtain the third actual shortest distance between the second reference position and the calibration plane.

[0109] Step S03, determine whether the track where the tundish car is located is deformed according to the second actual shortest distance and the third actual shortest distance.

[0110] In step S04, if the track where the tundish carriage is located is deformed, determine the track deformation offset of the target side based on the second actual shortest distance and the third actual shortest distance.

[0111] In step S05, adjust and limit the position of the tundish 4 on the target side in the tundish carriage according to the track deformation offset.

[0112]

Explanation of executing steps S01 - S05 for the left side of the tundish carriage 18

[0113] Regarding step S01, obtain the second actual shortest distance between the second reference position on the target side and the calibration plane.

[0114] The second reference position can be the same as the first reference position or different from the first reference position. For example, Figure 3 As shown, point K on the left side of the tundish carriage 18 is the first reference position. The second reference position can be point K or any position on the left side of the tundish carriage 18.

[0115] The second actual shortest distance between the second reference position on the left side of the tundish carriage 18 and the calibration plane L2 is measured by the distance measuring device 1 (or other measuring methods). When the second reference position is the same as the first reference position, the second actual shortest distance is equal to the first actual shortest distance.

[0116] After the tundish carriage 18 moves to the casting position, step S02 can be executed.

[0117] Regarding step S02, obtain the third actual shortest distance between the second reference position and the calibration plane.

[0118] After the tundish carriage 18 moves to the casting position, the third actual shortest distance between the third reference position on the left side of the tundish carriage 18 and the calibration plane L2 is measured by the distance measuring device 1 (or other measuring methods).

[0119] Regarding step S03, determine whether the track where the tundish carriage is located is deformed based on the second actual shortest distance and the third actual shortest distance.

[0120] When the left side of the tundish carriage 18 is the target side, the following method can be used to determine whether the track 3 corresponding to the moving part of the wheel 2 on the left side of the tundish carriage 18 on the track 3 has been deformed.

[0121] If the absolute value of the difference between the second actual shortest distance and the third actual shortest distance is less than the preset deformation difference, the track 3 corresponding to the moving part of the wheel 2 on the left side of the tundish carriage 18 on the track 3 has not been deformed.

[0122] If the absolute value of the difference between the second actual shortest distance and the third actual shortest distance is greater than the preset deformation difference, the track 3 corresponding to the moving part of the wheel 2 on the left side of the tundish car 18 has been deformed.

[0123] For example, as Figure 4 shown in the figure, on the left side, the tundish car 18 is in the baking position, and on the right side, the tundish car 18 is in the casting position, and then the tundish car 18 moves to Figure 4 the casting position on the right side in the figure. The preset deformation difference is denoted as 0.01 m.

[0124] In Figure 4 the baking position on the left side in the figure, the second actual shortest distance on the left side of the tundish car 18 is 6.85 m. When the tundish car 18 moves to the casting position, the third actual shortest distance is 6.80 m. The absolute value of the difference between the second actual shortest distance and the third actual shortest distance is |6.85 m - 6.80 m| = 0.05 m > 0.01 m, which indicates that the track 3 corresponding to the moving part H4 of the wheel 2 on the left side of the tundish car 18 has been deformed.

[0125] It should be noted that when the absolute value of the difference between the second actual shortest distance and the third actual shortest distance corresponding to the second reference position on the left side of the tundish car 18 is less than the preset deformation difference, the track 3 corresponding to the moving part of the wheel 2 on the left side of the tundish car 18 may also have been deformed, but the degree of its deformation does not affect the alignment of the left side of the tundish 4 with the mold 17 (or its influence degree can be ignored), and this situation is also recorded as the track 3 corresponding to the moving part of the wheel 2 on the left side of the tundish car 18 has not been deformed.

[0126] The preset deformation difference can be set according to the actual situation. If the accuracy requirement for the alignment of the tundish 4 and the mold 17 is high, the preset deformation difference can be set to relatively small values such as 0.05 m, 0.03 m, 0.01 m, 0 m, etc.

[0127] Regarding step S04, if the track where the tundish car is located has been deformed, then determine the track deformation offset of the target side according to the second actual shortest distance and the third actual shortest distance.

[0128] For example, as Figure 4 shown in the figure, the track corresponding to the moving part H4 of the wheel 2 on the left side of the tundish car 18 has been deformed. The second actual shortest distance on the left side of the tundish car 18 is 6.85 m, the third actual shortest distance is 6.80 m, and the difference between the second actual shortest distance and the third actual shortest distance is 6.85 m - 6.80 m = 0.05 m, that is, the track deformation offset on the left side of the tundish car 18 is 0.05 m. Combining Figure 4It can be seen that the corresponding track deformation in the H4 section causes the left side of the tundish car 18 to be displaced downward as a whole by 0.05 m (the downward here refers to the up, down, left, and right in the top view of the tundish car 18 in Figure 4 ).

[0129] Regarding step S05, the position of the tundish 4 on the target side in the tundish car is adjusted and limited according to the track deformation offset.

[0130] As Figure 4 shown in, the position fine-tuning device on the left side of the tundish car 18 adjusts and limits the position of the tundish 4 in the tundish car 18 on the left side of the tundish car 18 by 0.05 m according to the track deformation offset on the left side of the tundish car 18.

[0131]

Description of Executing Steps S01 - S05 for the Right Side of the Tundish Car 18

[0132] The method of executing steps S01 - S05 for the right side of the tundish car 18 is similar to the method of executing steps S01 - S05 for the left side of the tundish car 18 above. Specifically, reference can be made to

Description of Executing Steps S01 - S05 for the Left Side of the Tundish Car 18

[0133] More preferably, when the tundish car 18 is at the same position, control the left side and the right side of the tundish car 18 to simultaneously execute "step S05, adjust and limit the position of the tundish 4 on the target side in the tundish car 18 according to the track deformation offset" to ensure that the displacements at both ends do not affect each other.

[0134] On the premise that the tracks corresponding to the moving parts of the left side and the right side of the tundish car 18 on the track 3 have both deformed, compared with executing "step S05" first for the left side of the tundish car 18 or executing "step S05" first for the right side of the tundish car 18, simultaneously executing "step S05" for the left side and the right side of the tundish car 18 respectively can save the time of the tundish 4 aligning with the mold 17 and improve the efficiency of the tundish 4 aligning with the mold 17.

[0135] In summary, in the present application, the left side and the right side of the tundish carriage 18 are respectively used as the target sides, and the first actual shortest distance and the theoretical shortest distance between the first reference position of the target side and the calibration plane L2 are obtained. Whether the wheels 2 on the target side are unevenly worn is determined based on the first actual shortest distance and the theoretical shortest distance of the target side. If the wheels 2 on the target side are unevenly worn, the wear offset of the wheels 2 on the target side is determined according to the first actual shortest distance and the theoretical shortest distance of the target side, and the tundish position on the target side of the tundish carriage 18 is adjusted and limited according to the wear offset of the wheels 2 on the target side. After adjusting and limiting the tundish positions in both the left side and the right side of the tundish carriage 18, the influence of the uneven wear of the wheels 2 of the tundish carriage 18 on the alignment of the tundish 4 with the mold 17 can be overcome, enabling the tundish to be aligned with the mold 17.

[0136] The present application also determines whether the corresponding track has deformed (or is uneven) when the tundish carriage 18 moves from the current position to the casting position, based on the second actual shortest distance between the second reference position of the target side and the calibration plane L2, and the third actual shortest distance between the second reference position of the target side and the calibration plane L2 after the tundish carriage 18 moves to the casting position. If the track where the wheels 2 of the tundish carriage 18 are located has deformed (or is uneven), the track deformation offset of the target side is determined according to the second actual shortest distance and the third actual shortest distance, and the tundish position on the target side is adjusted and limited according to the track deformation offset of the target side. After adjusting and limiting the tundish positions on both the left side and the right side within the tundish carriage 18, the influence of the uneven track on the alignment of the tundish 4 with the mold 17 can be overcome, thereby enabling the tundish 4 to be aligned with the mold 17.

[0137] The present application also provides Figure 5 a tundish and mold alignment system as shown

[0138] At least two distance measuring devices 1 are respectively arranged on both sides of the center line of the wide face of the tundish carriage 18, and the target distance measuring device 1 on each side is used to measure the first actual shortest distance between its own position and the calibration plane L2; the calibration plane L2 refers to a plane parallel to the wide face of the mold 17.

[0139] The distance measuring device 1 can be set at any position on the left side of the center line of the wide surface of the tundish car 18, or it can also be set at any position on the right side of the center line of the wide surface of the tundish car 18. When the distance measuring device 1 is set on the left side of the center line of the wide surface of the tundish car 18, the distance measuring device 1 is used to measure the first actual shortest distance between its own position and the calibration plane L2; when the distance measuring device 1 is set on the right side of the center line of the wide surface of the tundish car 18, the distance measuring device 1 is used to measure the first actual shortest distance between its own position and the calibration plane L2. The distance measuring device 1 can be a rangefinder or other distance measuring instrument, which is not limited here. It can be understood that in the description of the above method for centering the tundish and the mold, the distance measuring device 1 is set at Figures 2 - 4 the K point, which can also indirectly illustrate that the distance measuring device 1 can be set at any position on the tundish car 18.

[0140] The calibration plane L2 is a plane parallel to the wide surface of the mold 17. The calibration plane L2 can be specifically embodied in the form of a calibration plate, or it can also be embodied in other forms, which is not limited here.

[0141] A controller, which is connected to each distance measuring device 1, is used to receive the first actual shortest distance sent by the target distance measuring device 1 on each side, and obtain the theoretical shortest distance between the actual position of the target distance measuring device 1 on each side and the calibration plane L2; according to the first actual shortest distance and the theoretical shortest distance corresponding to the target distance measuring device 1 on each side, determine whether the wheels 2 on each side of the tundish car 18 are unevenly worn. If so, determine the wear offset of the wheels on that side according to the first actual shortest distance and the theoretical shortest distance corresponding to the target distance measuring device 1 on that side.

[0142] Such as Figure 5 In, taking the left side of the tundish car 18 as the target side as an example, the controller is connected to the distance measuring device 1. The controller receives the first actual shortest distance between the position measured by the distance measuring device 1 and the calibration plane L2, and moreover, the controller obtains the theoretical shortest distance between the actual position of the distance measuring device 1 on the tundish car 18 and the calibration plane L2.

[0143] The theoretical shortest distance obtained by the controller can be stored in the controller, or it can be determined by the controller according to the actual position of the target distance measuring device 1 itself, the size of the tundish car 18, and the theoretical positional relationship between the tundish car 18 and the calibration plane L2.

[0144] For example, such as Figure 5As shown, the current known position of the distance measuring device 1 on the tundish car 18, the dimensional parameters of the tundish car 18, and the shortest distance between the tundish car 18 and the calibration plane L2 are known. Among them, the shortest distance between the distance measuring device 1 and the side wall of the tundish car 18 close to the calibration plane is 5m, and the shortest distance between the tundish car 18 and the calibration plane L2 is 2m. Therefore, the controller can theoretically know that the theoretical shortest distance between the distance measuring device 1 and the calibration plane is 7m based on 5m and 2m.

[0145] The controller determines whether the left wheel 2 of the tundish car 18 is unevenly worn based on the first actual shortest distance between the distance measuring device 1 and the calibration plane L2 and the theoretical shortest distance between the actual position of the distance measuring device 1 on the tundish car 18 and the calibration plane L2.

[0146] If the left wheel 2 of the tundish car 18 is unevenly worn, the controller determines the wear offset of the left wheel of the tundish car 18 based on the first actual shortest distance between the distance measuring device 1 and the calibration plane L2 and the theoretical shortest distance between the actual position of the distance measuring device 1 on the tundish car 18 and the calibration plane L2, and the controller sends the drive signal of the wear offset of the left wheel of the tundish car 18 to the corresponding position fine-tuning device 6 on the left side of the following tundish car 18.

[0147] At least two position fine-tuning devices 6 and 7 are respectively arranged on both sides of the midline of the wide surface of the tundish car 18 and are respectively connected to the controller. Each side's position fine-tuning device is used to receive the drive signal of this side sent by the controller and adjust and limit the position of the tundish 4 on this side in the tundish car 18 according to the wheel wear offset included in the drive signal of each side, so as to realize the centering of the tundish 4 and the mold 17.

[0148] The position fine-tuning device can be a transverse drive system or other position adjustment devices, which are not limited here. If at least two position fine-tuning devices include two position fine-tuning devices 6 and 7, the position fine-tuning device 6 can be arranged at any position on the left side of the tundish car 18, and the position fine-tuning device 7 can be arranged at any position on the right side of the tundish car 18, and can be specifically selected according to the actual situation.

[0149] Such as Figure 5 In, taking the left side of the tundish car 18 as the target side as an example, the position fine-tuning device 6 is arranged on the wide surface of the tundish car 18 closer to the calibration plane L2, and the position fine-tuning device 6 is arranged on the left side of the wide surface. The position fine-tuning device 6 can be connected to the tundish 4 for fixing the tundish 4 and adjusting the position of the tundish 4. It can be understood that when at least two position fine-tuning devices include two position fine-tuning devices 1, each fine-tuning device not only needs to be fixed to the tundish, but also needs to have the function of pushing and pulling the tundish 4 from different directions.

[0150] After the position fine-tuning device 6 is connected to the tundish 4, the left position of the tundish 4 is adjusted and limited by extending or shortening the telescopic rod member inside the fine-tuning device 6. It can be understood that when the telescopic rod member of the position fine-tuning device 6 adjusts and limits the left position of the tundish 4 in a vertical telescopic manner, it is the most labor-saving.

[0151] The position fine-tuning device 6 receives the driving signal on the left side of the ladle car 18 sent by the controller, and adjusts and limits the position of the tundish 4 on the left side of the ladle car 18 in the ladle car 18 according to the wheel wear offset included in the driving signal corresponding to the left side of the ladle car 18, so as to achieve the alignment of the left side of the tundish 4 and the left side of the mold 17.

[0152] The position fine-tuning device 6 can be set at any position on the left narrow-side wall of the ladle car 18. The position fine-tuning device 6 is used to fix the left side of the tundish 4 and adjust the left position of the tundish 4; the position fine-tuning device 7 can be set at any position on the right narrow-side wall of the ladle car 18. The position fine-tuning device 7 is used to fix the right side of the tundish 4 and adjust the right position of the tundish 4. For example Figure 5 in, the position fine-tuning device is set on the right side of the wide surface of the ladle car 18 far from the calibration plane L2.

[0153] More preferably, if at least two position fine-tuning devices include four position fine-tuning devices, two of the position fine-tuning devices are set on one wide-side wall of the ladle car 18, and the other two position fine-tuning devices are set on the other wide-side wall of the ladle car 18, and the two position fine-tuning devices on the same wide-side wall are respectively on both sides of the wide-side center line of the ladle car 18.

[0154] As Figure 6 shown, the position fine-tuning devices 6 and 9 are set on the wide-side wall of the ladle car 18 close to the calibration plane L2 and are respectively on both sides of the wide-side center line of the ladle car 18; the position fine-tuning devices 8 and 7 are set on the wide-side wall of the ladle car 18 far from the calibration plane L2 and are respectively on both sides of the wide-side center line of the ladle car 18.

[0155] It can be understood that the position fine-tuning devices 6, 7, 8, and 9 can fix the tundish 4 and adjust the limit of the tundish 4 only by telescoping the telescopic rod member inside the position fine-tuning device itself (it can be understood that the telescopic rod member can push the tundish 4 and also pull the tundish 4). Therefore, the position fine-tuning devices 6, 7, 8, and 9 can be not connected to the tundish 4, and the operation is simpler.

[0156] Before the ladle car 18 reaches the casting position, the controller is further used for: receiving the second actual shortest distance between its own position and the calibration plane L2 measured by the target distance measuring device 1 on each side;

[0157] After the tundish car 18 is moved to the casting position, the controller is further configured to: receive the third actual shortest distance measured by the target distance measuring device 1 on each side between its own position and the calibration plane L2; determine whether the track 3 where the tundish car 18 is located is deformed according to the second actual shortest distance and the third actual shortest distance; if the track 3 where the tundish car 18 is located is deformed, determine the track deformation offset on each side of the tundish car 18 according to the second actual shortest distance and the third actual shortest distance.

[0158] The position fine-tuning device on each side is further configured to receive the driving signal of this side sent by the controller, and adjust and limit the position of the tundish 4 on this side in the tundish car 18 according to the track deformation offset included in the driving signal corresponding to each side, so as to achieve the centering of the tundish 4 and the mold 17.

[0159] In summary, the present application also provides a centering system for a tundish and a mold. Corresponding to the above-mentioned centering method for a tundish and a mold, the centering system for a tundish and a mold provided by the present application at least includes two distance measuring devices, a controller, and two position fine-tuning devices. The centering system for a tundish and a mold provided by the present application can overcome the influence of uneven wear of the wheels 2 on the centering of the tundish to the mold 17 after adopting the above-mentioned centering method for a tundish and a mold, and can also overcome the influence of the uneven height of the track where the tundish car 18 is located on the centering of the tundish to the mold 17.

[0160] The present application also provides a Figure 7 centering system for a tundish and a mold as shown. Corresponding to the above-mentioned centering method for a tundish and a mold, the system includes:

[0161] Distance measuring devices 15, 16 for measuring the distance between their own positions and the calibration plane L2;

[0162] Position fine-tuning devices 10, 11, 12, 13 for adjusting and limiting the tundish 4;

[0163] A displacement sensor for detecting the elongation of the position fine-tuning device (not shown in Figure 7 )

[0164] A controller, connected to the position fine-tuning device, and capable of executing a centering method for the tundish 4 and the mold 17, which has been described above and will not be elaborated here.

[0165] As Figure 7On the left side in it, the ladle car 18 stops at the left baking position. The position fine-tuning devices 10, 11, 12, and 13 are all in the contraction limit state. The position fine-tuning devices 10 and 11 are arranged on the wide-side wall of the ladle car 18 close to the calibration plane L2 and are respectively located on both sides of the wide-side center line of the ladle car 18. The position fine-tuning devices 12 and 13 on the ladle car 18 are arranged on the wide-side wall of the ladle car 18 far from the calibration plane L2 and are respectively located on both sides of the wide-side center line of the ladle car 18.

[0166] The rangefinders 15 and 16 are respectively arranged on both sides of the center line of the wide-side wall of the ladle car 18 on the side close to the calibration plane L2. The perpendicular distance between the distance measuring device 15 and the position fine-tuning device 10 and the perpendicular distance between the distance measuring device 16 and the position fine-tuning device 11 are both fixed values and are both L. The perpendicular distances between the position fine-tuning devices 10 and 11 and the calibration plane L2 are both fixed values and are both H. When the ladle car 18 is at the baking position, the distances between the distance measuring devices 15 and 16 and the calibration plane L2 are respectively denoted as a and b.

[0167] The controller judges the relationship between a and (H - L). If a > H - L, then the absolute value of the difference between a and H - L is denoted as g, that is, |a - (H - L)| = g, and controls the position fine-tuning device 12 to vertically extend into the ladle car 18 by g. If a < H - L, then the absolute value of the difference between a and H - L is denoted as g, that is, |a - (H - L)| = g, and controls the position fine-tuning device 10 to vertically extend into the ladle car 18 by g.

[0168] The controller judges the relationship between b and (H - L). If b > H - L, then the absolute value of the difference between b and H - L is also denoted as G, that is, |b - (H - L)| = G, and controls the position fine-tuning device 13 to vertically extend into the ladle car 18 by G. If b < H - L, then the absolute value of the difference between b and H - L is denoted as G, that is, |b - (H - L)| = G, and controls the position fine-tuning device 11 to vertically extend into the ladle car 18 by G.

[0169] If a = (H - L) and b = (H - L), then the controller directly executes the following steps. If a = (H - L) and b ≠ (H - L), or a ≠ (H - L) and b = (H - L), then after the controller makes the corresponding position fine-tuning device extend according to the corresponding elongation amount according to the relationship between a and (H - L) or the relationship between b and (H - L) as described above, the following steps are executed.

[0170] After the controller controls the tundish 4 to be placed in the ladle car 18, the controller controls the position fine-tuning devices 10, 11, 12, and 13 to extend into the ladle car 18, and displacement sensors are respectively arranged in the position fine-tuning devices 10, 11, 12, and 13 to detect the elongation amounts of the position fine-tuning devices 10, 11, 12, and 13.

[0171] It should be noted that although there may be a situation where some of the position fine-tuning devices have already extended at this time, the displacement sensors corresponding to the extended position fine-tuning devices are all reset at this time. That is to say, the controller resets the displacement sensors corresponding to the extended position fine-tuning devices, but the actual extension amount of the extended position fine-tuning devices remains unchanged.

[0172] The controller records the extension amounts of the position fine-tuning devices 10, 11, 12, and 13 in real time, and the controller determines the maximum and minimum values of the extension amounts corresponding to the transverse movement drive systems 10, 11, 12, and 13 at the same moment in real time, records the maximum value as c, and the minimum value as d. The controller monitors in real time whether c - d is greater than e (e is the maximum allowable difference in extension, usually taking a value of 2 mm - 5 mm). If the controller monitors that c - d > e, then at this time, the controller controls the position fine-tuning device corresponding to the extension amount c to stop extending, and controls the other 3 position fine-tuning devices to continue extending until the extension amounts are all c. In actual situations, the actual extension amounts of the position fine-tuning devices 10, 11, 12, and 13 may be different. Through this step, the probability of different actual extension amounts of the position fine-tuning devices 10, 11, 12, and 13 can be reduced or avoided.

[0173] The controller controls the position fine-tuning devices 10, 11, 12, and 13 to extend in the above manner until the tundish 4 is fixed in the tundish car 18. At this time, the tundish 4 can already be centered with the mold 17.

[0174] Through the above steps, the influence of uneven wear of the wheels 2 of the tundish car 18 on the centering of the tundish 4 with the mold 17 can be overcome.

[0175] The influence of the uneven height of the track 3 of the tundish car 18 on the centering of the tundish 4 with the mold 17 can be overcome through the following description.

[0176] As Figure 7 shown, after the controller controls the tundish car 18 to move from the baking position to the casting position, the distance measuring devices 15 and 16 respectively measure the distances from the calibration plane L2, which are recorded as A and B respectively.

[0177] The controller judges the relationship between a and A. If a is greater than A, then the difference a - A is recorded as a1. The controller first controls the position fine-tuning device 12 to extend outward from the tundish car 18 by a1, and then controls the position fine-tuning device 10 to extend inward into the tundish car 18 by a1.

[0178] If a is less than A, then the difference a - A is recorded as a2. The controller first controls the position fine-tuning device 10 to extend outward from the tundish car 18 by a2, and then controls the position fine-tuning device 12 to extend inward into the tundish car 18 by a2. If a is equal to A, then the controller does not need to operate on the control of the position fine-tuning devices 10 and 12.

[0179] The controller determines the relationship between b and B. If b is greater than B, the difference between b and B is denoted as b1. First, the controller controls the position fine-tuning device 13 to extend outward from the tundish car 18 by b1, and then controls the position fine-tuning device 11 to extend inward into the tundish car 18 by b1.

[0180] If b is less than B, the difference between b and B is denoted as b2. First, the controller controls the position fine-tuning device 11 to extend outward from the tundish car 18 by b2, and then controls the position fine-tuning device 13 to extend inward into the tundish car 18 by b2. If b is equal to B, the controller does not need to operate on the position fine-tuning devices 11 and 13.

[0181] It should be noted that a limiting flange 5 is provided on the wheel 2 of the tundish car 18 to limit the derailment of the wheel 2 of the tundish car 18; there is a stop limit 14 on the left side of the track of the tundish car 18 to make the tundish car 18 stop at the baking position, and there is a stop limit 14 on the right side of the track of the tundish car 18 to make the tundish car 18 stop at the casting position.

[0182] Through the above steps, when the tundish car 18 moves from the baking position to the casting position, the influence of the unevenness of the corresponding track 3 on the alignment of the tundish 4 with the mold 17 can be overcome.

[0183] Since the electronic device introduced in this embodiment is the electronic device used for implementing the information processing method in the embodiments of the present application, based on the information processing method introduced in the embodiments of the present application, those skilled in the art can understand the specific implementation manners and various forms of changes of the electronic device in this embodiment. Therefore, the specific implementation of how this electronic device implements the method in the embodiments of the present application will not be described in detail here. As long as the electronic device used by those skilled in the art to implement the information processing method in the embodiments of the present application belongs to the scope protected by the present application.

[0184] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0185] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices produce means for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0186] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory produce a manufactured article including instruction means that implement the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0187] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0188] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0189] Obviously, those skilled in the art can make various changes and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A method for aligning a tundish with a mold, characterized in that, The method includes: Taking both sides of the center line of the wide surface of the tundish car as the target sides, and performing the following target steps: Obtaining a first actual shortest distance between a first reference position on the target side and a calibration plane, and obtaining a theoretical shortest distance between the first reference position and the calibration plane; the calibration plane refers to a plane parallel to the wide surface of the mold; Determining whether the wheels on the target side are unevenly worn according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position; If so, determining the wheel wear offset on the target side according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position; Adjusting and limiting the position of the tundish in the tundish car on the target side according to the wheel wear offset; After performing the target steps on both sides of the center line of the wide surface of the tundish car, the tundish and the mold are centered; Before the tundish car reaches the casting position, the target steps further include: Obtaining a second actual shortest distance between a second reference position on the target side and the calibration plane; After the tundish car moves to the casting position, the target steps further include: Obtaining a third actual shortest distance between the second reference position and the calibration plane; Determining whether the track where the tundish car is located is deformed according to the second actual shortest distance and the third actual shortest distance; If so, determining the track deformation offset on the target side according to the second actual shortest distance and the third actual shortest distance; Adjusting and limiting the position of the tundish in the tundish car on the target side according to the track deformation offset.

2. The method according to claim 1, characterized in that, The obtaining of the first actual shortest distance between the first reference position on the target side and the calibration plane includes: Measuring the first actual shortest distance between the first reference position and the calibration plane by a distance measuring device.

3. The method according to claim 1, characterized in that, The obtaining of the theoretical shortest distance between the first reference position and the calibration plane includes: Determining the theoretical shortest distance between the first reference position and the calibration plane according to the specific position of the first reference position on the tundish car, the dimensional parameters of the tundish car, and the theoretical positional relationship between the calibration plane and the tundish car.

4. The method according to claim 1, wherein The determining of whether the wheels on the target side are unevenly worn according to the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position includes: If the absolute value of the difference between the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position is less than a first preset difference, determining that the wheels on the target side are not unevenly worn; If the absolute value of the difference between the first actual shortest distance and the theoretical shortest distance corresponding to the first reference position is greater than the first preset difference, determining that the wheels on the target side are unevenly worn.

5. The method according to claim 1, wherein The adjusting and limiting of the position of the tundish in the tundish car on the target side according to the wheel wear offset includes: Control the position fine-tuning device in the tundish car to reserve a preset space for the tundish according to the wheel wear offset, and control the tundish to be placed in the preset space to realize the adjustment and limit of the tundish position on the target side; or, Control the position fine-tuning device in the tundish car to drive the tundish to move in the tundish car according to the wheel wear offset to realize the adjustment and limit of the tundish position on the target side.

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