CAJ | 학술논문

利用灰熔融温度测定仪、XRD、SEM-EDX探究了高温弱还原性气氛下，Fe2O3对林南仓煤灰熔融温度、渣样矿物组成，微观形貌的影响。结果表明，随Fe2O3含量增加，煤灰特征熔融温度呈先下降后缓慢上升的趋势。灰渣中赤铁矿主要转化为铁尖晶石等低温共熔物导致煤灰熔融温度降低；在高Fe2O3添加量下，剩余的赤铁矿转化为磁铁矿，导致灰熔融温度升高。
이용회용융온도측정의、XRD、SEM-EDX탐구료고온약환원성기분하，Fe2O3대림남창매회용융온도、사양광물조성，미관형모적영향。결과표명，수Fe2O3함량증가，매회특정용융온도정선하강후완만상승적추세。회사중적철광주요전화위철첨정석등저온공용물도치매회용융온도강저；재고Fe2O3첨가량하，잉여적적철광전화위자철광，도치회용융온도승고。
The influence of Fe2O3 on ash fusion temperature, mineral constituents and surface morphologies of Linnancang coal were investigated under reducing atmosphere at high temperature by Ash Fusion Detector, XRD and SEM-EDX. The results show that, the fusibility temperatures of coal ashes decrease and then increase with increasing addition amount of Fe2O3. The hematite mainly transformed into spinel to form eutectic mixture which decreases coal ash fusion temperature. Under high Fe2O3 content, the rest of hematite transformed into magnetite will increase the ash fusion temperature.