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Tundish of small square billet continuous caster and mounting method of slag dam of tundish

A billet continuous casting and tundish technology, which is applied in casting equipment, casting molten material containers, metal processing equipment, etc., can solve problems such as easy fall of slag retaining wall, floating inclusions, and large temperature difference of seven-flow tundish, etc. To achieve the effect of convenient construction, low cost, and reduce the incidence of production accidents

Active Publication Date: 2015-10-07
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent solves the technical problem that the slag retaining wall of the slab tundish is easy to fall, but the shape of the seven-strand billet tundish is different from that of the slab tundish, and this patented technology cannot solve the large temperature difference in the narrow and long seven-strand tundish , The drift of the slag retaining wall caused the middle flow plug rod to be resisted by the slag retaining wall and lost control, and the inclusions floated up and other technical problems

Method used

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  • Tundish of small square billet continuous caster and mounting method of slag dam of tundish
  • Tundish of small square billet continuous caster and mounting method of slag dam of tundish
  • Tundish of small square billet continuous caster and mounting method of slag dam of tundish

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Effect test

Embodiment 1

[0027] This embodiment provides a tundish for a billet continuous casting machine. The tundish 10 is elongated as a whole, and seven pouring holes 1 are sequentially arranged inside along its length direction, and dams are also arranged between the pouring holes 1. 2. There is an impact area 3 inside the tundish 10, and a slag retaining wall 4 is provided in the impact area 3. The slag retaining wall 4 and the impact area 3 are arranged in the middle area of ​​the tundish. The slag retaining wall 4 includes a vertical main wall 5 and the side walls 6 bent and extended on both sides of the main wall 5, the slag retaining wall 4 is U-shaped, and the side walls 6 are provided with straight holes 7 and first diversion holes 8, the first diversion holes 8 Along the thickness direction of the side wall 6, it is arranged obliquely upward from the inside to the outside, and the straight hole 7 is arranged horizontally; the straight hole 7 is located above the first diversion hole 8, an...

Embodiment 2

[0037]This embodiment provides a tundish for a billet continuous casting machine. The tundish 10 is elongated as a whole, and seven pouring holes 1 are sequentially arranged inside along its length direction, and dams are also arranged between the pouring holes 1. 2. There is an impact area 3 inside the tundish 10, and a slag retaining wall 4 is provided in the impact area 3. The slag retaining wall 4 and the impact area 3 are arranged in the middle area of ​​the tundish. The slag retaining wall 4 includes a vertical main wall 5 and the side walls 6 bent and extended on both sides of the main wall 5, the slag retaining wall 4 is U-shaped, and the side walls 6 are provided with straight holes 7 and first diversion holes 8, the first diversion holes 8 Along the thickness direction of the side wall 6, it is arranged obliquely upward from the inside to the outside, and the straight hole 7 is arranged horizontally; the straight hole 7 is located above the first diversion hole 8, and...

Embodiment 3

[0047] This embodiment provides a tundish for a billet continuous casting machine. The tundish 10 is elongated as a whole, and seven pouring holes 1 are sequentially arranged inside along its length direction, and dams are also arranged between the pouring holes 1. 2. There is an impact area 3 inside the tundish 10, and a slag retaining wall 4 is provided in the impact area 3. The slag retaining wall 4 and the impact area 3 are arranged in the middle area of ​​the tundish. The slag retaining wall 4 includes a vertical main wall 5 and the side walls 6 bent and extended on both sides of the main wall 5, the slag retaining wall 4 is U-shaped, and the side walls 6 are provided with straight holes 7 and first diversion holes 8, the first diversion holes 8 It is an inclined hole and the angle with the horizontal plane is 10-45°. The first diversion hole 8 is arranged obliquely upward from the inside to the outside along the thickness direction of the side wall 6, and the straight hol...

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Abstract

The invention discloses a tundish of a small square billet continuous caster. The tundish is strip-shaped on the whole, wherein a plurality of casting holes are sequentially formed in the tundish in the length direction; dams are arranged between the casting holes; an impact area is arranged in the tundish; a slag dam is arranged in the impact area; both the slag dam and the impact area are arranged in the middle area of the tundish; the slag dam comprises a vertical main wall body and side wall bodies bending and extending from two sides of the main wall body; the cross section of the slag dam is U-shaped; a straight hole and a first flow guiding hole are formed in each of the side wall bodies; the first flow guiding holes are inclined holes, and the included angle between each first flow guiding hole and the horizontal plane is 10-45 degrees; the first flow guiding holes are obliquely and upwardly arranged from the inner side to the outer side in the thickness directions of the side wall bodies; and the straight holes are horizontally arranged.

Description

technical field [0001] The invention relates to the field of iron and steel smelting, in particular to a billet continuous casting machine tundish and an installation method thereof. Background technique [0002] The application number is CN201110102385.9, and the patent name is a continuous casting tundish slag retaining wall insert and its embedded installation method. It mainly introduces a slab continuous casting tundish slag retaining wall insert and its embedded installation method. According to the installation position and size of the tundish slag retaining wall, two inlays are made of heat-resistant cast steel, which are symmetrically welded on the side of the dry material working lining construction film, and when the dry material working lining construction film construction tundish When the working lining is used, the inserts welded on the construction film of the dry material working lining will form two grooves at the position where the working lining of the tu...

Claims

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Application Information

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IPC IPC(8): B22D41/00B22D41/02
Inventor 李明陈兴华胡道峰翟卫江倪小勇周士北
Owner NANJING IRON & STEEL CO LTD