Pore channel cooling method of damaged cooling wall of blast furnace and device thereof

A cooling method and technology of cooling wall, applied in the direction of cooling device, etc., can solve the problem of small passage, achieve the effect of stable airflow, conducive to maintenance, and avoid enlargement

Inactive Publication Date: 2010-05-12
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: Aiming at the shortcomings of the above prior art, a method and device for cooling the blast furnace damaged stave channel are proposed, which can well solve the problem that a part of the coolin

Method used

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  • Pore channel cooling method of damaged cooling wall of blast furnace and device thereof
  • Pore channel cooling method of damaged cooling wall of blast furnace and device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] The cooling method of the blast furnace damaged stave channel is carried out according to the following steps:

[0018] (1) Separate the damaged cooling wall for the cooling wall that is blocked or close to blocking the cooling channel;

[0019] (2) Insert a metal corrugated hose into the water inlet pipe and outlet pipe of the cooling wall, and plug the front end of the metal corrugated hose with a plug;

[0020] (3) Insert a metal corrugated hose with a smaller diameter into the metal corrugated hose, plug the front end of the hose with a plug, and open several small holes on the plug;

[0021] (4) Fill the slurry with high thermal conductivity between the cooling wall and the large metal corrugated hose. The slurry with high thermal conductivity can be silicon carbide, silicon nitride or carbon material.

[0022] (5) The water supply pipe is connected to the rear end of the large metal corrugated hose, and the cooling water passes through the cavity formed between t...

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Abstract

The invention belongs to the reformation field of damaged cooling walls of blast furnaces, relating to a pore channel cooling method of a damaged cooling wall of a blast furnace and a device thereof. The damaged cooling wall is independently separated, a metal corrugated flexible pipe are respectively inserted into a water inlet pipe and a water outlet pipe of the cooling wall, the front end of each metal corrugated flexible pipe is blocked by a core plug, metal corrugated flexible pipes with smaller pipe diameters are then inserted in the metal corrugated flexible pipes, the front ends of the flexible pipes are blocked by core plugs, a plurality of pores are arranged on the core plugs, slurry with high heat conduction factor is filled between the cooling wall and the large metal corrugated flexible pipes, cooling water passes through a cavity formed between the large and small metal corrugated flexible pipes, passes through the pore channels of the small metal corrugated flexible pipes and then flows out of the small metal corrugated flexible pipes, and then the cooling effect is achieved. The invention can improve the phenomena that one part of the cooling pore channels of the cooling wall is burnt out or the channels are small, solve the problem of water leakage, ensure cooling intensity, prolong the service life of the damaged cooling wall and solve a thorny problem restricting the production of the blast furnace.

Description

technical field [0001] The invention belongs to the field of reconstruction of blast furnace damaged cooling staves, in particular to a cooling method and device for the channel of blast furnace damaged cooling staves. Background technique [0002] Blast furnace stave damage and water leakage is the enemy of blast furnace production, which restricts the production of blast furnace and the improvement of technical and economic indicators, and even affects the furnace life of blast furnace. At present, the commonly used cooling treatment methods after the blast furnace stave is damaged are as follows: (1) Separate the damaged stave pipeline from the system and use separate water supply to facilitate water control and reduce the amount of water leaking into the furnace; ( 2) Through pipe cooling, metal hose is inserted into the damaged cooling wall channel, and a high thermal conductivity slurry is filled between the outside of the metal hose and the inner wall of the cooling w...

Claims

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Application Information

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IPC IPC(8): C21B7/10
Inventor 杜卫中肖国才
Owner NANJING IRON & STEEL CO LTD
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