Cylindrical continuous-casting tundish

A continuous casting tundish, barrel-shaped technology, applied in foundry equipment, casting melt containers, metal processing equipment, etc., can solve the problems of uneven distribution of molten steel composition and inclusion content, large molten steel temperature difference, etc. The effect of reducing the possibility of secondary pollution, reducing corrosion and saving costs

Inactive Publication Date: 2010-03-03
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems that the existing multi-strand continuous casting tundish has a large temperature difference between the inner and outer sides of the molten steel, and the serious uneven distribution of molten steel composition and inclusion content, the present invention provides a drum-shaped continuous casting tundish

Method used

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  • Cylindrical continuous-casting tundish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The structure of the barrel-shaped continuous casting tundish is as follows: figure 1 and figure 2 As shown, it includes a circular bottom surface and a cylindrical side wall. The middle part of the circular bottom surface is provided with a cylindrical dam, and the bottom end of the cylindrical dam is connected with the circular bottom surface. Each tapping hole is evenly distributed on the circular bottom surface and has the same diameter, and the center of each tapping hole is located on a circle coaxial with the circular dam; the axis of the cylindrical dam is in line with the circular bottom surface Axes are the same axis.

[0022] The inner diameter of the cylindrical side wall is 1.635m, the height of the cylindrical side wall is 0.85m, the ratio of the height to the inner diameter is 1:1.92, the inner diameter of the cylindrical retaining dam is 0.9m, and the ratio of the inner diameter of the cylindrical side wall is 1 : 1.82; the height of the cylindrical r...

Embodiment 2

[0031] The structure of the barrel-shaped continuous casting tundish is the same as that in Embodiment 1, the difference is that there are four tap holes on the circular bottom surface around the cylindrical dam, and the center of each tap hole is located in a center coaxial with the circular dam. circle on.

[0032] The inner diameter of the cylindrical side wall is 1.68m, the ratio of the height of the cylindrical side wall to the inner diameter is 1:2.2, and the ratio of the inner diameter of the cylindrical side wall to the inner diameter of the cylindrical retaining dam is 1:2; the height of the cylindrical retaining dam and The height ratio of the cylindrical side wall is 1:3.2; the horizontal distance between the center of each tapping hole and the cylindrical side wall is 1 / 100 of the inner diameter of the cylindrical side wall.

[0033] During continuous casting production, the steel taps of the drum-shaped continuous casting tundish are respectively connected with th...

Embodiment 3

[0036] The structure of the barrel-shaped continuous casting tundish is the same as that of Embodiment 1, except that there are 12 tapping ports on the circular bottom surface, and the center of each tapping port is located on a circle coaxial with the circular retaining dam.

[0037] The inner diameter of the cylindrical side wall is 1.7m, the ratio of the height of the cylindrical side wall to the inner diameter is 1:1.8, the ratio of the inner diameter of the cylindrical side wall to the inner diameter of the cylindrical dam is 1:1.5; the height of the cylindrical dam and The height ratio of the cylindrical side wall is 1:3.8; the horizontal distance between the center of each tapping hole and the cylindrical side wall is 1 / 120 of the inner diameter of the cylindrical side wall.

[0038] In order to reduce the heat loss on the molten steel surface, a cover is provided in the barrel-shaped continuous casting tundish. The lower end of the cover is connected to the top of the c...

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Abstract

The invention relates to a cylindrical continuous-casting tundish which is composed of a cylindrical bottom surface and a cylindrical side wall; the middle part of the cylindrical bottom surface is provided with a cylindrical blocking dam, 4-12 steel taping holes are uniformly distributed on a circular bottom surface at the periphery of the cylindrical blocking dam, the centers of the steel tapingholes are arranged at the same circumference on the circular bottom surface. The invention saves cost of the device by arranging the simple blocking dam, reduces the corrosion of fireproofing material, is beneficial to the production of high-quality steel products, radically solves the metallurgy problem that a rectangle or T-shaped continuous-casting tundish can not solve no matter any one current controlled structure is adopted and has wide developing prospect and great social and economic benefits.

Description

technical field [0001] The invention relates to continuous casting tundish equipment, in particular to a barrel-shaped continuous casting tundish. Background technique [0002] The continuous casting production process of steel is an important metallurgical container connecting the casting ladle and the continuous casting mold—the shape of the tundish can be described as various, including rectangle, triangle, V shape, T shape, H shape, etc., mainly according to the continuous casting machine and the continuous casting mold. It is designed according to the specific situation of the workshop. In order to meet the needs of multi-strand casting, the tundish of billet continuous casting machine generally arranges multiple tapping ports (nozzles) along the length direction of the rectangular tundish, with 4, 6 or even 8 ports. In this way, the horizontal distances between the tapholes and the molten steel flow injected into the tundish are different, resulting in a large tempera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/08
Inventor 朱苗勇曹磊胡建东路东柱
Owner NORTHEASTERN UNIV
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