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Steel tapping hole assembled outside converter and masonry method thereof

A technology of tapping hole and converter, which is applied in the direction of manufacturing converters, etc., can solve the problems of shortening the installation time of the tapping hole in the furnace, and achieve the effect of shortening the installation time, convenient construction and preventing steel penetration.

Inactive Publication Date: 2010-03-10
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of the prior art, the present invention provides an integral assembly of the converter taphole outside the furnace. After baking, when the converter body is built to the taphole, the overall installation in the furnace is carried out, which improves the safety of the converter taphole. Masonry quality, which solves the quality defects and safety hazards in the existing tapping hole masonry process, and can shorten the installation time of the tapping hole in the furnace by more than 3 hours

Method used

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  • Steel tapping hole assembled outside converter and masonry method thereof
  • Steel tapping hole assembled outside converter and masonry method thereof
  • Steel tapping hole assembled outside converter and masonry method thereof

Examples

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Embodiment 1

[0044] The converter taphole assembled outside the furnace of the present invention has been successfully used in a 120-ton top-bottom combined blowing converter in the Laiwu Iron and Steel Group Yinshan Sectional Steel Co., Ltd. steelmaking plant. Such as figure 1 , 2 As shown in , 3 and 4, a converter tap hole is assembled outside the furnace, which consists of a large brick 1 inside the tap hole, a large brick 2 outside the tap hole, a cover brick 3 for the tap hole, a filler material 4, a steel pipe 5, and an internal fixing plate 6 , outer fastening plate 7, the large brick 1 inside the tapping hole and the large brick 2 outside the tapping hole are set on the set brick 3 of the tapping hole, the female opening of the large brick 1 inside the tapping hole and the sub-mouth of the large brick 2 outside the tapping hole For butt jointing, the center line of the round hole coincides, and the annular seam between it and the taphole brick 3 is filled with filler material 4 an...

Embodiment 2

[0064] Other is with embodiment 1, and difference is:

[0065] The large brick 1 in the tapping hole has an inner hole diameter ￠ of 400 mm, and the inner hole diameter ￠ is 60 mm larger than the outer diameter D of the tapping hole set brick. The large brick 2 outside the tapping hole is divided into 9 sections along the length direction, and the length of each section is 120mm. The diameter D is 100mm larger;

[0066] The taphole brick 3 has a circular section in section, with an outer diameter D of 300mm, an inner diameter d of 135mm, and a length L of 1600mm. It is divided into 8 sections along the horizontal centerline of the hole, and the length of each section is 200mm. The connection mode of the sub-mother port.

[0067] The steel pipe 5 has an outer diameter of 132 mm and a wall thickness of 10 mm. The length of the left end of the steel pipe 5 is 400 mm longer than that of the tapping hole brick L; External fastening plate.

[0068] The internal fixing plate 6 an...

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Abstract

The invention relates to a steel tapping hole assembled outside a converter and a masonry method thereof. The steel tapping hole comprises a steel tapping hole inner large brick (1), a steel tapping hole outer large brick (2), a steel tapping hole sleeve brick (3), stuffing (4), a steel pipe (5), an inner fixing plate (6) and an outer mounting plate (7) and is characterized in that the steel tapping hole inner large brick (1) and the steel tapping hole outer large brick (2) are sleeved on the steel tapping hole sleeve brick (3); and after the steel tapping hole is integrally assembled and roasted outside the converter, the internal assemblying is carried out when the converter body of the converter is masoned to the position of the steel tapping hole. The invention enhances the masonry quality of the converter steel tapping hole, solves the problem of quality defects and potential safety hazards in the prior steel tapping hole masonry technique and can shorten the installation time ofthe steel tapping hole inside the converter by more than 3 hours under an equal masonry technology condition.

Description

technical field [0001] The invention relates to a converter tap hole assembled outside the furnace and a masonry method, belonging to the technical field of iron and steel metallurgy and steelmaking technology. Background technique [0002] The converter taphole is the tapping channel for molten steel smelted in the converter, consisting of large bricks inside the taphole, large bricks outside the taphole, and taphole set bricks. When building the new lining of the converter, there are currently two main masonry techniques for the large bricks of the tap hole and the bricks of the tap hole at home and abroad: one is to build the large bricks inside the tap hole when the furnace body is built to the tap hole 1. The large bricks inside the taphole, after the furnace body is built, the large bricks outside the taphole and the taphole cover bricks are built, that is, the assembly of the large taphole bricks and the taphole cover bricks is in the converter furnace and the masonry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/46
Inventor 武光君张盈杨继刚
Owner SHANDONG IRON & STEEL CO LTD
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