METHOD OF BURNING-IN LINING IN BOTTOM BLOWN STEELMAKING FURNACE

摘要

1510390 Method of preheating new converter lining USS ENGS & CONSULTANTS Inc 10 Feb 1976 [30 July 1975] 05199/76 Heading F4B In a method for preheating newly installed refractory material 16 and 23 in a bottomblown steel making converter having tuyeres 22 with axial passages 26 and annular passages 28, oxygen from a manifold 38 and a gaseous hydrocarbon from a manifold 40 is passed through the passages 26 and 28 respectively at a controlled rate and combusted in the converter to preheat or "burn in" the new refractory material. Simultaneously neutral gas from a source 42 is fed to the manifolds 38 and 42 to provide total gas flows in tuyere passages 26 and 28 of sufficient magnitude to prevent entry of foreign materials such as loose refractories and flowing pitch.