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.