FIELD: metallurgic industry. SUBSTANCE: invention relates to production of refractory groove mass used for blast furnace grooves. Refractory mass comprises, wt.-%: a filling agent as crumbs of pitch-dolomite fettling waste from ladles, chamotte crumbs or waste of blast furnace groove fettling, 10-30; antioxidant as SiO2, 7-15; refractory clay, 3-16; modified lignosulfate with addition of coal pitch, (0.5-20); coal-tar chemical industry waste as cake crumbs, the balance. EFFECT: decreased cost of refractory mass, enhanced stability of grooves, improved conditions of workers labor.
Title | Year | Author | Number |
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Authors
Dates
2002-09-27—Published
2000-01-31—Filed