Method for detecting leakage of cooing walls by using self-made pressurization leakage detector

A stave and leak detection technology, applied in the direction of cooling devices, etc., can solve the problems that affect the blast furnace condition, the long life of the blast furnace, the stave damage, etc.

Inactive Publication Date: 2018-01-16
XINJIANG BAYI IRON & STEEL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Insufficient: 1. Three-way valve leak detection method is installed between each stave. The staves of each layer are hard connection. External reasons such as installation and construction, as well as internal reasons such as changes in gas flow in the furnace and large fluctuations in stave temperature, etc., lead to frequent shearing of stave cooling water pipes and stave damage, which affects the smooth operation of the blast furnace and the longevity of the blast furnace

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  • Method for detecting leakage of cooing walls by using self-made pressurization leakage detector

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Embodiment Construction

[0009] A method for leak detection of staves using a self-made pressure leak detection device. First, the hard connection of the "U" steel pipes for the inlet and outlet water pipes of the staves between the 10th and 16th staves of the blast furnace is replaced by quick connectors The flexible connection structure is used for connection: that is to install and weld the soft connection pin of the quick joint at the root of the water inlet and outlet respectively, and then use the self-made stave pressure leak detection device to connect with the added and welded quick joint pin, and carry out layer by layer Pressure leak detection, if the leak detection result is intact, use the metal hose quick connector to connect, and continue the normal circulation cooling, if the leak detection result is severely damaged, grouting is carried out to suffocate, and if the damage is small, the industrial water pipe maintenance is carried out; stave pressure leak detection device, such as figu...

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Abstract

The invention discloses a method for detecting the leakage of cooing walls by using a self-made pressurization leakage detector. The method comprises the following steps: changing the hard connectionof a U-shaped steel pipe of a cooling wall water inlet and outlet tube between a tenth-stage cooling wall and a sixteenth-stage cooling wall of a blast furnace into connection using the flexible connection structure of a quick connector, carrying out pressurization leakage detection layer by layer, using a metal flexible tube quick connector and continuing normal circulation cooling if the leakagedetection result is good in order to carry out connection, carrying out grouting sealing if a leakage detection result is severe damage, and carrying out industrial water poling maintenance if the damage degree is small. The cooling wall pressurization leakage detector comprises a quick connector female buckle, the outside end of the quick connector female buckle is connected with a flange through a flexible tube, the center of the flange is connected with a steel tube with the diameter being 32 mm and the length being 200 mm, a ball valve is arranged at the tail end of the steel tube, the tube body of the middle part of the steel tube is connected with a steel tube with the diameter being 15 mm and the length being 100 mm, and the steel tube is sequentially provided with a ball valve anda pressure gauge from bottom to top.

Description

technical field [0001] The invention relates to a method for leak detection of staves by using a self-made pressure leak detection device. Background technique [0002] The maintenance level of the stave of the ironmaking blast furnace directly affects the smooth operation of the blast furnace and the longevity of the first generation of the blast furnace. The main body of the blast furnace is cooled by closed circulation of soft water, and each cooling water pipe between the staves of each layer is also cooled by series circulation. There are no valves between the cooling staves of the first section and the cooling staves of the 16th section, all of which are connected by "U" steel pipes, and no leak detection valves are installed in the middle. When performing horizontal leak detection between the 10th stave and the 16th stave of the blast furnace, the custom repair of the blast furnace is usually used to install a DN65mm three-way valve and a DN15mm leak detection valve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/10
Inventor 张文庆任贵河舒艺李刚义付涛
Owner XINJIANG BAYI IRON & STEEL
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