甘肃冶金
甘肅冶金
감숙야금
GANSU METALLURGY
2014年
5期
4-7
,共4页
菱铁矿%磁化焙烧%弱磁选
蔆鐵礦%磁化焙燒%弱磁選
릉철광%자화배소%약자선
siderite%magnetization roasting%weak magnetic separation
在中性气氛中，对以菱铁矿为主的某复杂难选铁矿石进行了磁化焙烧-磁选工艺研究。试验结果表明，最优工艺条件为：焙烧温度700℃，焙烧时间60 min，磨矿细度95％-0．044 mm，粗选作业磁场强度均为151．24 kA/m，精选磁场强度39．80 kA/m。获得TFe品位55．55％，回收率720．1％的铁精矿。
在中性氣氛中，對以蔆鐵礦為主的某複雜難選鐵礦石進行瞭磁化焙燒-磁選工藝研究。試驗結果錶明，最優工藝條件為：焙燒溫度700℃，焙燒時間60 min，磨礦細度95％-0．044 mm，粗選作業磁場彊度均為151．24 kA/m，精選磁場彊度39．80 kA/m。穫得TFe品位55．55％，迴收率720．1％的鐵精礦。
재중성기분중，대이릉철광위주적모복잡난선철광석진행료자화배소-자선공예연구。시험결과표명，최우공예조건위：배소온도700℃，배소시간60 min，마광세도95％-0．044 mm，조선작업자장강도균위151．24 kA/m，정선자장강도39．80 kA/m。획득TFe품위55．55％，회수솔720．1％적철정광。
Magnetizing roast and magnetic concentration was studied under neutral atmosphere on some refractory iron ore dominated by siderite .The test results show that the optimal technological conditions for calcination temperature are 700℃, 60 min magnetizing roast time ,grinding fineness 95%-0.044mm , magnetic field strength for roughing of 151.24 kA/m, magnetic field strength for selection of 39.80 kA/m.The iron concentrate TFe grade of 55.55%, and the recovery rate of 72. 01 %were gained under laboratory condition .
