摘要
介绍了采用回转窑—电炉法(RKEF)处理缅甸达贡山镍红土矿生产镍铁的中试试验过程,得到了下述最佳工艺参数:干燥后原矿含水20%～22%、回转窑预还原温度900℃、还原剂煤的配入量7%、镍品位19%,烟尘制粒时湿矿配入量为烟尘的25%、尘球含水30%,电炉熔炼时放渣温度1 550～1 600℃、镍铁合金放出温度1 450～1 500℃。
The pilot plant test on ferronickel alloy production from Myanmar Dagon Hill nickel laterite by rotary kiln-electric furnace smelting process （RKEF） was introduced. The optimum process parameters in- clude moisture of 20-22% in dried ore, pre-reduction temperature of 900 ℃, reductant dosage of 7%, nickel grade in ferronickel alloy of 19%; 25% of dust as dosage of wet laterite, the moisture of dustball of 30% in palletizing process, slag and ferronickel alloy discharging temperature in electric furnace smelting process of 1 550-1 600 ℃ and 1 450-1500 ℃, respectively.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2013年第1期8-10,16,共4页
Nonferrous Metals（Extractive Metallurgy)
关键词
镍红土矿
干燥
还原焙烧
镍铁合金
制粒
回转窑
电炉
nickel laterite
drying
reduction roasting
ferronickel alloy
pelletizing
rotary kiln
electric furnace
