Continuous casting submersed nozzle centering device
By designing a continuous cast immersion water outlet centering device including arc segments and scales, the problem of inaccurate centering of immersion water outlets and crystallizers is solved, and a fast and simple centering judgment is achieved, ensuring uniform internal treatment of the casting billet and avoiding steel leakage accidents.
Patent Information
- Application Number
- CN202421432341.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-21
AI Technical Summary
In continuous casting process, the alignment between the immersion water port and the crystallizer is not accurate enough, resulting in uneven internal treatment of the casting billet and may even cause steel leakage accidents.
A continuous cast immersion water outlet centering device is designed, including an arc segment, a first side branch and a second side branch. The radius of curvature of all parts is the same as that of the immersion water outlet and the same scale is engraved. The centering state between the water outlet and the crystallizer is judged by the symmetry and position consistency of these scales.
The device is easy to use and easy to operate. It can quickly determine whether the immersion water port and the crystallizer are centered, avoiding the internal treatment of the casting billet and the occurrence of steel leakage accidents.
Smart Images
Figure CN222919634U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of continuous casting, in particular to a continuous casting submerged nozzle aligner. Background Art
[0002] As Figure 1 shown in the figure, in the continuous casting process, it is necessary to transfer the molten steel in the tundish 3 into the mold 4. The molten steel in the tundish 3 enters the mold 4 through the submerged nozzle 1. Before the continuous casting starts pouring, after the tundish car drives to the pouring position above the mold 3, the submerged nozzle 1 needs to be aligned with the upper opening 2 of the mold. The alignment of the submerged nozzle and the mold will directly affect the internal quality of the slab. The skew of the nozzle will cause uneven growth of the shell thickness in the mold, and even cause a breakout accident.
[0003] The utility model provides a continuous casting submerged nozzle aligner, which is convenient to use, easy to operate, and can quickly judge whether the submerged nozzle is aligned with the mold. Summary of the Utility Model
[0004] The utility model provides a continuous casting submerged nozzle aligner, which is convenient to use, easy to operate, and can quickly judge whether the submerged nozzle is aligned with the mold.
[0005] The utility model provides a continuous casting submerged nozzle aligner, comprising: an arc section, the radius of curvature of the arc section is the same as that of the submerged nozzle; a first side branch and a second side branch, the first side branch and the second side branch are respectively connected to both ends of the arc section, the first side branch and the second side branch are equal in length and are respectively engraved with the same scale, and the positions of the scales engraved on the first side branch and the second side branch are the same, and the first side branch and the second side branch are axisymmetric with respect to the axis of symmetry of the arc section; a handle, the handle connects the first side branch and the second side branch, and the arc section, the first side branch, the second side branch and the handle form a closed figure.
[0006] Further, the first side branch and the second side branch extend along the radial direction of the arc section.
[0007] Further, the central angle of the arc section is 60° - 90°.
[0008] Further, the central angle of the arc section is 60°.
[0009] Further, the continuous casting submerged nozzle aligner further comprises a central axis section, the central axis section is connected to the arc section, and the central axis section extends along the axis of symmetry of the arc section.
[0010] The continuous casting submerged nozzle aligner provided by the utility model is convenient to use, easy to operate, and can quickly judge whether the submerged nozzle is aligned with the mold. Brief Description of the Drawings
[0011] Figure 1 The figure shows a docking schematic diagram of a submerged nozzle and a mold.
[0012] Figure 2 The figure shows a structural schematic diagram of a continuous casting submerged nozzle aligner according to an embodiment of the present invention.
[0013] Figure 3 The figure shows a usage schematic diagram of a continuous casting submerged nozzle aligner according to the first embodiment of the present invention.
[0014] Figure 4 The figure shows a usage schematic diagram of a continuous casting submerged nozzle aligner according to the second embodiment of the present invention.
[0015] Reference Numerals:
[0016] 1: Submerged nozzle; 2: Upper opening of the mold; 3: Tundish; 4: Mold; 5: Continuous casting submerged nozzle aligner;
[0017] 51: First side branch; 52: Second side branch; 53: Arc section; 54: Handle; 55: Central axis section. Detailed Description of the Embodiments
[0018] To further understand the purpose, structure, features, and functions of the present invention, the following is a detailed description in conjunction with the embodiments.
[0019] Figure 2 The figure shows a structural schematic diagram of a continuous casting submerged nozzle aligner according to an embodiment of the present invention. Figure 3 The figure shows a usage schematic diagram of a continuous casting submerged nozzle aligner according to the first embodiment of the present invention. Figure 4 The figure shows a usage schematic diagram of a continuous casting submerged nozzle aligner according to the second embodiment of the present invention.
[0020] As Figures 2 - 4As shown in the figure, the present utility model provides a continuous casting submerged nozzle centering device 5, which includes: an arc section 53, the curvature radius of the arc section 53 is the same as that of the submerged nozzle 1, so that the arc section 53 can coincide with the arc line of the cross-section of the submerged nozzle 1. Considering that the curvature radii of the cross-sections at different positions of the submerged nozzle may be different, specifically, the curvature radius of the arc section 53 is the same as the curvature radius of the docking position when the submerged nozzle 1 and the upper opening 2 of the mold are normally centered; a first side branch 51 and a second side branch 52, the first side branch 51 and the second side branch 52 are respectively connected to both ends of the arc section 53, the first side branch 51 and the second side branch 52 are of equal length and are respectively engraved with the same scale, and the positions where the first side branch 51 and the second side branch 52 are engraved with the scale are the same, and the first side branch 51 and the second side branch 52 are axisymmetric with respect to the symmetry axis of the arc section 53; a handle 54, the handle 54 connects the first side branch 51 and the second side branch 52, and the arc section 53, the first side branch 51, the second side branch 52 and the handle 54 form a closed figure.
[0021] Figure 3 The figure shows a schematic diagram of the use of the continuous casting submerged nozzle centering device according to the first embodiment of the present utility model. Refer to Figure 3 , when in use, the arc section 53 is fitted to the docking part of the submerged nozzle 1 and the upper opening 2 of the mold. In Figure 3 , the shape of the upper opening 2 of the mold is circular. If the submerged nozzle 1 and the upper opening 2 of the mold are normally centered, the scales at the intersections of the first side branch 51 and the second side branch 52 with the circular contour line of the upper opening of the mold should be the same. If the submerged nozzle 1 and the upper opening 2 of the mold are not normally centered, the arc section 53 cannot be normally fitted to the docking part of the submerged nozzle 1 and the upper opening 2 of the mold, resulting in different scales at the intersections of the first side branch 51 and the second side branch 52 with the circular contour line of the upper opening of the mold. In this way, measure at each position around the submerged nozzle 1. If the scales at the intersections of the first side branch 51 and the second side branch 53 with the circular contour line of the upper opening of the mold are all the same, it proves that the submerged nozzle 1 and the upper opening 2 of the mold are normally centered; otherwise, they are not centered and need to be adjusted. The adjustment can be made according to the deviation degree of the scales at the intersections of the first side branch 51 and the second side branch 53 with the circular contour line of the upper opening of the mold. Further, the first side branch 51 and the second side branch 52 can extend radially along the arc section for easy observation. The central angle of the arc section 53 can be 60° to 90°, preferably 60°, which is convenient for operation and observation.
[0022] Figure 4 The figure shows a schematic diagram of the use of the continuous casting submerged nozzle centering device according to the second embodiment of the present utility model. As Figure 4 shown, further, the continuous casting submerged nozzle centering device 5 may further include a central axis section 55, the central axis section 55 is connected to the arc section 53, and the central axis section 55 extends along the symmetry axis of the arc section 53. As Figure 4As shown, sometimes the upper opening 2 of the mold is square or rectangular. At this time, during measurement, not only should the arc section 53 be fitted to the joint between the submerged nozzle 1 and the upper opening 2 of the mold as before, but also it is necessary to ensure that the central axis section is perpendicular to the sides of the square of the upper opening 2 of the mold before measurement can be carried out. If, after measuring the four sides of the square or rectangular contour line, the scales at the intersections of the first side branch 51 and the second side branch 52 with the square contour line of the upper opening of the mold are the same, it proves that the submerged nozzle 1 and the upper opening 2 of the mold are properly centered. Otherwise, they are not centered and need to be adjusted, and the corresponding adjustment can be made according to the deviation degree of the scales at the intersections of the first side branch 51 and the second side branch 52 with the square contour line of the upper opening of the mold.
[0023] The continuous casting submerged nozzle centering device provided by the present utility model is convenient to use and easy to operate, and can quickly judge whether the submerged nozzle and the mold are centered.
[0024] In the description of the present utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" orientation or positional relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0025] The present utility model has been described by the above related embodiments. However, the above embodiments are only examples for implementing the present utility model. It must be pointed out that the disclosed embodiments do not limit the scope of the present utility model. On the contrary, modifications and refinements made without departing from the spirit and scope of the present utility model fall within the scope of patent protection of the present utility model.
Claims
1. A continuous casting submerged nozzle centering device, characterized in that: include: An arc segment, the radius of curvature of the arc segment being the same as the radius of curvature of the submerged nozzle; A first side branch and a second side branch, wherein the first side branch and the second side branch are respectively connected to two ends of the arc segment, the first side branch and the second side branch are equal in length and are respectively engraved with the same scale, and the positions of the scales engraved on the first side branch and the second side branch are the same, and the first side branch and the second side branch are symmetrical with respect to the symmetry axis of the arc segment; A handle connects the first side branch and the second side branch, and the arc segment, the first side branch, the second side branch and the handle form a closed figure.
2. The continuous casting submerged nozzle centering device according to claim 1, characterized in that: The first side branch and the second side branch extend along the radial direction of the arc segment.
3. The continuous casting submerged nozzle centering device according to claim 1, characterized in that: The center angle of the arc segment is 60° to 90°.
4. The continuous casting submerged nozzle centering device according to claim 3, characterized in that: The center angle of the arc segment is 60°.
5. The continuous casting submerged nozzle centering device according to claim 1, characterized in that: It also includes a central axis segment, which is connected to the circular arc segment and extends along the symmetry axis of the circular arc segment.