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A Partial Repair Method of Blast Furnace Hot Blast Stove Vault

A technology of hot blast furnace and vault, which is applied in the direction of brick blast furnace, etc. It can solve the problems of increasing the workload of dismantling and repairing, achieve the effect of reducing the workload of repairing and improving the effect of repairing

Active Publication Date: 2017-08-29
BEIJING SHOUGANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the workload of demolition and repair and may cause other adverse effects

Method used

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  • A Partial Repair Method of Blast Furnace Hot Blast Stove Vault
  • A Partial Repair Method of Blast Furnace Hot Blast Stove Vault

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Experimental program
Comparison scheme
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Embodiment Construction

[0021] The technical problem to be solved by the present invention is to provide a method for partial repair of the vault of the blast furnace hot blast stove. This method solves the problem that when the commonly used vault is partially damaged, it is difficult to reduce the demolition and repair due to the limitation of the location of the locally damaged part. Work load, improve repair technical effect and other issues.

[0022] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Such as figure 1 , figure 2 As shown, the present embodiment provides a partial repair method for the vault of a blast furnace hot blast stove, including:

[0024] Step S101 : According to the damage of the refractory material of the refractory lining of the hot blast stove vault and the damage of the furnace shell,...

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Abstract

The invention discloses a local repairing method for a blast furnace hot blast stove vault. The method comprises the steps that for each layer in a to-be-repaired area of a hot blast stove vault refractory lining, a bottom-to-top building manner is adopted in a traditional bricking method area, refractory bricks are integrally built till the final door closing position; a building manner from two sides to the top is adopted in the repairing areas on the two sides of the final door closing position till the topmost furnace inner original brick area, and a door closing area where door closing can be carried out on the outer ring is reserved; a building manner from top to bottom is adopted, and the door closing area is built; and door closing bricks are built at the final door closing position. Under the situation that the quality is guaranteed, the repairing processing workload is reduced.

Description

technical field [0001] The invention relates to the technical field of blast furnace hot blast stoves, in particular to a partial repair method for a blast furnace hot blast stove vault. Background technique [0002] The vault of the blast furnace hot blast stove is a spherical furnace roof made of multi-layer refractory materials. When building a new hot blast stove, the refractory materials are built layer by layer from bottom to top, and finally the masonry work is completed on the spherical top. The spherical arch of the hot blast stove The top is a stable structure. During the use of the hot blast stove, it will be subjected to alternating temperature and pressure, which will cause fatigue and structural stability degradation of the refractory material (furnace shell) of the hot blast stove vault, resulting in an increase in the temperature of the furnace shell or air leakage from the dome, seriously Occasionally, the vault of the hot blast stove will be damaged and bu...

Claims

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Application Information

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IPC IPC(8): C21B9/02
CPCC21B9/02
Inventor 郑敬先王桂才邵俊宁芦文凯常醒民杨晓婷张锦炳蔡景春
Owner BEIJING SHOUGANG CO LTD