| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: agglomerate oxidised nickel ore and fuel reducing agent are loaded into the furnace. Oxygenated blasting is fed to the combustion zone and recovery-sulfided melting is carried out. Supply of oxygenated blasting is performed through the blast tuyeres placed at least at two levels Through the first level of the tuyeres the main blast is supplied, and through the second level of the tuyeres, located above the first level, additional oxygenated blasting is supplied. The distance between the tuyeres of the first and second levels is 660-1000 mm, while the number of primary blasting is greater than the number of additional blasting. ^ EFFECT: increased efficiency and sustainability of work of the furnace, as well as the melt-through of nickel alongside with reduction of coke consumption. ^ 5 cl, 1 tbl |
