Crystallizer centering device of continuous casting flat type submersed nozzle

Abstract

The utility model relates to a crystallizer centering device of a continuous casting flat type submersed nozzle, and belongs to the technical field of the metallurgical industry. Comprising a fixing fork, and a triangular center indicating piece is arranged in the center of one side of the fixing fork; a horizontally arranged grab handle is arranged in the center of the other side of the fixed fork, one end of the grab handle is fixed on the fixed fork through a connecting piece, and the other end of the grab handle is placed on the outer edge of the crystallizer; the center indicating piece is arranged at the center of the crystallizer, and the thickness center of the flat submersed nozzle abuts against the center indicating piece. The center line of the grab handle is parallel to the wide edge of the crystallizer; the width of the fixing fork is matched with the height of an inner cavity of the crystallizer, and the fork teeth are attached to the inner wall of the crystallizer. Scale marks are carved on the grab handle, and the distance between the starting position of the scale marks and the fixing fork is half of the width of the crystallizer. According to the centering device, centering of the flat submersed nozzle can be rapidly and accurately completed, and the centering accuracy is improved.

Description

Technical Field

[0001] The utility model relates to a crystallizer centering device for a continuous casting flat submerged nozzle, belonging to the technical field of the metallurgical industry. Background Art

[0002] Centering the submerged nozzle in the crystallizer for square billets, rectangular billets or slab billets has a crucial impact on the stability of the flow field in the crystallizer. The centering of the submerged nozzle is directly related to the control of inclusions and cracks. At present, due to the lack of a reference point in the crystallizer, the centering of the flat submerged nozzle often relies on visual judgment based on manual experience, and it is difficult to ensure the accuracy. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a crystallizer centering device for a continuous casting flat submerged nozzle aiming at the above-mentioned prior art, which can quickly and accurately complete the centering of the flat submerged nozzle and improve the centering accuracy.

[0004] The technical solution adopted by the utility model to solve the above problems is as follows: a crystallizer centering device for a continuous casting flat submerged nozzle, including a fixed fork, and a triangular center indicator is arranged at the center on one side of the fixed fork; a horizontally arranged handle is provided at the center on the other side of the fixed fork, one end of the handle is fixed to the fixed fork through a connecting piece, and the other end of the handle is placed on the outer edge of the crystallizer; the center indicator is provided with the center of the crystallizer, and the thickness center of the flat submerged nozzle abuts against the center indicator.

[0005] The center line of the handle is parallel to the wide side of the crystallizer; the width of the fixed fork matches the height of the inner cavity of the crystallizer, and the fork teeth are attached to the inner wall of the crystallizer.

[0006] A non-metallic wear-resistant lining is provided on the outer side of the fork teeth.

[0007] The non-metallic wear-resistant lining is one of a wooden piece or a piece made of a polymer material.

[0008] Scale lines are engraved on the handle, and the distance between the starting position of the scale lines and the fixed fork is half of the width of the crystallizer.

[0009] The center indicator is an isosceles triangle structural member.

[0010] Compared with the prior art, the advantages of the present utility model are as follows: A mold centering device for a continuous casting flat submerged nozzle. After the fixed fork with a center indicating member is leveled, it is fixed to the mold, which is the center of the mold. When moving the tundish, the thickness center of the flat submerged nozzle abuts against the center indicating member, realizing the complete centering of the flat submerged nozzle in the mold. This application can accurately determine the plane center of the mold and the installation point of the flat submerged nozzle, improve the centering accuracy of the continuous casting nozzle, and further reduce the influence brought by the unstable flow of the molten metal during continuous casting. Brief Description of the Drawings

[0011] Figure 1 It is a schematic diagram of a mold centering device for a continuous casting flat submerged nozzle according to an embodiment of the present utility model;

[0012] In the figure, 1 is the mold, 2 is the fork teeth, 3 is the fixed fork, 4 is the connecting member, 5 is the handle, 6 is the center indicating member, and 7 is the nozzle. Detailed Embodiment

[0013] The following further describes the present utility model in detail with reference to the embodiments of the drawings.

[0014] As Figure 1 shown, a mold centering device for a continuous casting flat submerged nozzle in this embodiment includes a fixed fork 3 made of metal. The fixed fork 3 has two symmetrically arranged fork teeth 2, and the fork teeth 2 are arranged parallel to the width direction of the mold 1. A center indicating member 6 is provided at the center of one side of the fixed fork 3. The cross-section of the center indicating member 6 is a horizontally lying isosceles triangle structural member, and one plane of the center indicating member 6 is fixed to the center of one side of the fixed fork 3. A horizontally arranged handle 5 is provided at the center of the other side of the fixed fork 3. One end of the handle 5 is fixed to the fixed fork 3 through a connecting member 4. The length of the handle 5 is 10 - 100 mm longer than the width of the mold 1, ensuring that the other end of the handle naturally lies on the outer edge of the mold, and the center line of the handle is parallel to the wide side of the mold. The width of the fixed fork 3 matches the inner cavity of the mold 1, so that the two fork teeth are in contact with the inner wall of the mold, that is, the center line of the center indicating member is the height center of the mold.

[0015] Scale lines are engraved on the handle 5. The distance between the starting position of the scale lines and the fixed fork is half of the width of the mold. When the handle horizontally extends into the inner cavity of the mold to the starting position of the scale lines, the center indicating member is at the center position of the width of the mold.

[0016] The outer sides of the above fork teeth are wrapped with a non-metallic wear-resistant lining. The material of the non-metallic wear-resistant lining is one of wood and polymer materials, which improves the service life of the fixed fork.

[0017] After leveling the fixing fork with a center indicator and fixing it to the mold, it is the center of the mold. When moving the tundish, the thickness center of the flat submerged nozzle abuts against the center indicator, achieving complete alignment of the flat submerged nozzle in the mold. This application can accurately determine the plane center of the mold and the installation point of the flat submerged nozzle, improving the alignment accuracy of the continuous casting nozzle, and thus reducing the impact of the unstable flow of the molten metal during continuous pouring.

[0018] In addition to the above embodiments, the present utility model also includes other implementation manners. Any technical solutions formed by equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present utility model.

Claims

1. A mold centering device for a continuous casting flat submerged nozzle, characterized in that: It comprises a fixed fork, which has two symmetrically arranged fork teeth, which are arranged parallel to the width direction of the crystallizer, and a triangular center indicator is arranged at the center of one side of the fixed fork; a horizontally arranged handle is arranged at the center of the other side of the fixed fork, one end of the handle is fixed to the fixed fork through a connecting piece, and the other end of the handle is placed on the outer edge of the crystallizer; the center indicator is provided with the center of the crystallizer, and the thickness center of the flat immersion water outlet is pressed against the center indicator.

2. The mold centering device for a continuous casting flat submerged nozzle according to claim 1, characterized in that: The center line of the handle is parallel to the wide side of the crystallizer; the width of the fixed fork matches the height of the inner cavity of the crystallizer, and the fork teeth fit the inner wall of the crystallizer.

3. The mold centering device for a continuous casting flat submerged nozzle according to claim 1, characterized in that: The outer side surface of the fork tine is provided with a non-metallic wear-resistant lining.

4. The mold centering device for a continuous casting flat submerged nozzle according to claim 3, characterized in that: The non-metallic wear-resistant lining is made of wood or polymer materials.

5. The mold centering device for a continuous casting flat submerged nozzle according to claim 1, characterized in that: The handle is engraved with scale lines, and the distance between the starting position of the scale lines and the fixed fork is half of the width of the crystallizer.

6. The mold centering device for a continuous casting flat submerged nozzle according to claim 1, characterized in that: The center indicator is an isosceles triangle structure.

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