Quick fluid injection assembly replacement in metallurgical reac

Details Quick fluid injection assembly replacement in metallurgical reac Quick fluid injection assembly replacement in metallurgical reac

1991-07-22

1992-05-12

Kastler, Scott

Metallurgical apparatus

Process

Tuyere operation

266265, 266270, C21B 716

Patent

active

051120291

ABSTRACT:
The present invention relates to a method and a fluid injection device for quick replacement, even in the red hot conditions, in a metallurgical reactor. The method comprises the external extraction of the injection device which is composed of an inner extractable blowing element and wear resistant block, element the blowing element secured in the wear resistant block and forming together the injection device. The quick interchange is first performed by extracting the inner blowing element, then installing a special extractor device in the space where the blowing element was and then extracting the wear resistant block by applying a force, in the opposite direction of the gas flow, through the bottom end of the extractor device. The extractor device has a special design so, when a force is applied at its bottom end, an expansive occurs at the upper end making the external extraction of said wear resistant block easier.

REFERENCES:
patent: 4522376 (1985-06-01), Langenfeld
patent: 5649043 (1985-09-01), Miyawaki et al.

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