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New Developments for Powder Coal Injection into the Blast Furnaces
Author(s) -
Assis Paulo Santos,
Vieira Cláudio Batista,
Nolasco Sobrinho Pedro José
Publication year - 2004
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.200405950
Subject(s) - blast furnace , tuyere , coal , waste management , combustion , metallurgy , materials science , environmental science , engineering , chemistry , organic chemistry
Experiments and results concerning Powder Coal Injection into blast furnaces are presented. A pilot plant, similar to a blast furnace tuyere, with a high thermal gradient, developed at Escola de Minas‐UFOP, Brazil, is described. Several tests have been performed in this pilot plant, using a mixture of three coals and preheating the coal, giving the following conclusions: preheating of coal and the mixture of more than two coals, not commonly practised by now, are appropriate for improving the combustion rate and thus enhancing the coal injection technique.