Device and method for accurate leak checking on blast furnace tuyere small sleeves

Abstract

The invention provides a device and method for accurate leak checking on blast furnace tuyere small sleeves, and belongs to the technical field of blast furnace inspection tools and methods. The device and method are used for leak checking on blast furnace tuyere small sleeves. According to the technical scheme, a water inlet pipe chuck front connecting part is connected with one end of an unfastened water inlet pipe chuck trough front threads, a water inlet pipe chuck rear connecting part is connected with the other end of the unfastened water inlet pipe chuck through rear threads, and a steam trap is installed between the water inlet pipe chuck front connecting part and the water inlet pipe chuck rear connecting part. According to the checking method, the characteristic that the potassium permanganate changes the color after dissolving in water is utilized, which sleeve is leaking water can be determined according to the changes of the color of leaking water, and the results of leak checking are visual and accurate. The device is simple in structure and convenient to operate. The device and the method are the pioneering technologies for checking leak of blast furnace tuyere small sleeves, the problem, which is not effectively solved for a long time, that whether water leak happens cannot be judged is solved with the simple checking device and method, the problem that in the prior art, the sleeve which is leaking cannot be accurately positioned is further solved, and therefore, the device and the method have completely positive practical effect on production.

Description

technical field [0001] The invention relates to a leak checking device and method for a blast furnace tuyere small sleeve, and belongs to the technical field of blast furnace maintenance tools and methods. Background technique [0002] The small blast furnace tuyere is an important equipment in the blast furnace air intake system, and its function is to send hot air into the blast furnace. The working environment of the small tuyeres is extremely harsh. The front end of the small tuyeres is a high-temperature environment of nearly 2000°C, and the temperature of the slag-iron melt is above 1400°C. The small tuyere cover is made of copper material, and the inside is cooled by water. The front end of the small tuyere cover extends into the furnace to prevent hot air and coal powder from directly washing the furnace wall. The small tuyere cover will leak water during use. The current methods for leak detection of the small tuyere cover mainly include: water temperature differen...

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Problems solved by technology

[0005] The above two methods have the following deficiencies in the leak checking work of staves: First, when the water leakage is large, these two methods can judge the water leakage. Accurate judgment; Secondly, even if the water leakage is found by the water temperature difference method or direct observation method, it is difficult to judge the water leakage point and locate the water leakage point, so it is difficult to formulate a treatment and solution, which affects the smooth progress of production

[0006] In view of the above deficiencies in the current method for detecting the leakage of the small tuyere casing of the blast furnace, it is impossible to quickly and accurately detect the water leakage of the small tuyere casing, so it is difficult to effectively deal with the leakage of the small tuyere casing, which is not conducive to the production of the blast furnace. Improvement of the Existing Water Leakage Method of the Blast Furnace Tuyere Small Cover

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