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

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 ...

AI Technical Summary

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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