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Method for repairing cooling water pipe of blast furnace on line

A technology for cooling water pipes and blast furnaces, used in cooling devices and other directions, can solve problems such as high cost, complicated operation, and unfavorable industrial production, and achieve the effect of extending service life and ensuring sealing.

Inactive Publication Date: 2017-03-15
SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is complicated to operate, and requires the outer diameter of the metal hose to be smaller than the inner diameter of the leaking cooling water pipe, which changes the flow rate of the original cooling water pipe and affects the cooling effect. Industrial production

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  • Method for repairing cooling water pipe of blast furnace on line

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Embodiment Construction

[0031] The invention discloses an online repair method for a blast furnace cooling water pipe. The method realizes online repair without stopping the blast furnace, prolongs the service life of the blast furnace, ensures the sealing performance of the cooling water pipe, and has good repair effect.

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0033] Such as figure 1 Described, a method for online repair of a blast furnace cooling water pipe, the method includes the following steps:

[0034] Use an ind...

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Abstract

The invention discloses a method for repairing a cooling water pipe of a blast furnace on line. The method comprises the following steps of: searching a damaged cooling water pipe, carrying out a pressure leakage test on the damaged cooling water pipe to search a water leaking point; carrying out shot-basting rust-removing on the damaged cooling water pipe; closing a water inlet valve and a water outlet valve which correspond to the damaged cooling water pipe, cutting off one section, which comprises the water leaking point, of the damaged cooling water pipe, and keeping a water inlet section of the damaged cooling water pipe and a water outlet section of the damaged cooling water pipe; cutting a metal hose, and filing a cut; connecting the water inlet section of the damaged cooling water pipe, the water inlet end of the metal hose and the water inlet end of a pressure-resistant hose with a quick joint, and connecting the water outlet section of the damaged cooling water pipe, the water outlet end of the metal hose and the water outlet end of the pressure-resistant hose with the quick joint; and opening the water inlet valve and the water outlet valve to form a novel cooling water channel. The method is good in repair effect, and realizes online repair on the premise of not needing the blast furnace to shut down.

Description

technical field [0001] The invention relates to the field of blast furnace metallurgy, in particular to an online repair method for a blast furnace cooling water pipe. Background technique [0002] Blast furnace cooling equipment is used to maintain a reasonable operating furnace type and protect the furnace body, and is an essential equipment for blast furnace operation. Most of the existing blast furnace cooling equipment adopts a bottom-up series constant flow water supply method. The blast furnace cooling water pipe is an important water-cooling part of the blast furnace lining, and the cooling water pipe is prone to rupture, causing water seepage in the cooling wall and reducing the service life of the cooling wall. , Increase the amount of equipment maintenance, reduce the normal production efficiency of the blast furnace, and affect the output of the blast furnace. [0003] At present, the method of repairing the blast furnace cooling water pipe is generally adopted,...

Claims

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Application Information

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IPC IPC(8): C21B7/10
CPCC21B7/10
Inventor 曾长刚刘德安杨波何益先张杰徐瑜
Owner SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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