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Mounting method of bottom blowing air supplying element

A technology of gas supply components and installation methods, applied in the metallurgical field, can solve problems such as affecting the arrangement of security measures

Active Publication Date: 2019-08-09
CENT IRON & STEEL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a bottom blowing air supply element installation method to solve the need to build high-altitude supports or platforms in existing installation methods. On the one hand, there are potential safety hazards, and on the other hand, the construction of supports or platforms will also Problems that affect the arrangement of other security measures

Method used

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  • Mounting method of bottom blowing air supplying element
  • Mounting method of bottom blowing air supplying element
  • Mounting method of bottom blowing air supplying element

Examples

Experimental program
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Effect test

Embodiment 1

[0074] The installation method of the annular seam bottom blowing air supply element includes the following steps:

[0075] (1) Shake the blowing hole at the bottom of the empty rotary furnace to be built to the position facing the converter platform;

[0076] (2) Build a protective frame from the converter platform to the converter bottom of step (1);

[0077] (3) Insert the bottom blowing gas supply element into the blowing hole at the bottom of the converter through the protective frame described in step (2) and fix it;

[0078] (4) Remove the protective frame built in step (2);

[0079] (5) Shake the furnace to the 0 position, and start to build the furnace lining;

[0080] (6) Insert the lower protective brick from the top of the bottom blowing gas supply element, and fit it with the furnace shell;

[0081] (7) Permanent layer masonry at the bottom of the converter;

[0082] (8) Fill the gap between the lower protective brick and the bottom blowing air supply element ...

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Abstract

The invention relates to a mounting method of a bottom blowing air supplying element, and belongs to the technical field of metallurgy. The problems that an existing mounting method needs to build high-altitude brackets or platforms, on the one hand, safety risks exist, on the other hand, construction of the brackets or platforms also affects arrangement of other security and protection measures are solved. The mounting method of the bottom blowing air supplying element includes the following steps that (1) a furnace bottom blowing hole to be constructed is shaken to a converter platform position; (2) the bottom blowing air supplying element is inserted into the furnace bottom blowing hole and fixed; and (3) a furnace lining is constructed. According to the mounting method of the bottom blowing air supplying element, mounting of the bottom blowing air supplying element is finished under the condition of not erecting the high-altitude brackets.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method for installing a bottom blowing gas supply element. Background technique [0002] The basic principle of the converter double blowing steelmaking process is to install a bottom blowing gas supply element at the bottom of the converter, and the bottom blowing gas supply element injects inert gas into the converter to stir the molten metal pool. Bottom-blowing gas stirring promotes the slag-steel reaction balance in the molten pool, which has obvious technical and economic advantages. In the long-term development process of the compound blowing converter, various gas supply components such as slit type, capillary tube type and circular gap type have been derived successively. At present, the most widely used gas supply components of the domestic iron and steel enterprises are bottom blown gas supply components of the circular gap type. [0003] The existing converter b...

Claims

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Application Information

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IPC IPC(8): C21C5/35C21C5/48
CPCC21C5/35C21C5/48
Inventor 王杰杨利彬杨勇赵进宣赵舸王思福汪成义
Owner CENT IRON & STEEL RES INST
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