Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mariupol I Metallurgical WorksfiledCriticalMariupol I Metallurgical Works
Priority to UAA200709487ApriorityCriticalpatent/UA82974C2/en
Publication of UA82974C2publicationCriticalpatent/UA82974C2/en
The invention relates to metallurgy. A protection of tuyere area of blast furnace comprises installed tuyere stave on furnace mantle with telescopic tuyere arch and a tuyere placed in it a, at that it is additionally equipped, with a layer of heat-resisting concrete located around of the arch and tuyere, insertedinto metal mantle, which is made with a gap to external surfaces of the arch and the tuyere, fixed to tuyere stave, at that on a place of a leaving aperture of tuyere a layer of heat resisting concrete is remote from its end of nozzle part in space of a blast furnace. The invention allows increasing of serive life peiod of the tuyere and the tuyere arch.
UAA200709487A2007-08-212007-08-21Method for protection of tuyere area of blast furnace
UA82974C2
(en)
Wear-resistant steel sheet having excellent wear resistnace at high temperatures and excellent bending workability and method for manufacturing the same