金属矿山
金屬礦山
금속광산
METAL MINE
2015年
6期
171-174
,共4页
李正要%曹君磊%邓文翔%王维维%乐坤
李正要%曹君磊%鄧文翔%王維維%樂坤
리정요%조군뢰%산문상%왕유유%악곤
高硫氰化尾渣%还原焙烧%脱硫%磁选
高硫氰化尾渣%還原焙燒%脫硫%磁選
고류청화미사%환원배소%탈류%자선
High sulfur cyanide tailing%Reduction roasting%Desulfurization%Magnetic separation
江西某冶炼厂氧化焙烧氰化尾渣含铁43．15%，含硫1．97%，属高硫氰化尾渣，采用常规选矿方法、磁化焙烧—磁选工艺难以获得理想的铁回收率指标。为开发利用该尾渣，对其进行了还原焙烧同步脱硫回收铁工艺研究。试验确定的最佳焙烧条件为：烟煤用量20%、脱硫剂BK用量16%、还原焙烧温度1150℃、焙烧时间45 min。最佳焙烧条件获得的焙烧产品经两段阶段磨矿阶段弱磁选试验，获得了产率42．71%、铁品位92．05%、硫含量0．04%、磷含量0．04%、铁回收率91．11%的还原铁产品，为高硫氰化尾渣资源化提供了一种新途径。
江西某冶煉廠氧化焙燒氰化尾渣含鐵43．15%，含硫1．97%，屬高硫氰化尾渣，採用常規選礦方法、磁化焙燒—磁選工藝難以穫得理想的鐵迴收率指標。為開髮利用該尾渣，對其進行瞭還原焙燒同步脫硫迴收鐵工藝研究。試驗確定的最佳焙燒條件為：煙煤用量20%、脫硫劑BK用量16%、還原焙燒溫度1150℃、焙燒時間45 min。最佳焙燒條件穫得的焙燒產品經兩段階段磨礦階段弱磁選試驗，穫得瞭產率42．71%、鐵品位92．05%、硫含量0．04%、燐含量0．04%、鐵迴收率91．11%的還原鐵產品，為高硫氰化尾渣資源化提供瞭一種新途徑。
강서모야련엄양화배소청화미사함철43．15%，함류1．97%，속고류청화미사，채용상규선광방법、자화배소—자선공예난이획득이상적철회수솔지표。위개발이용해미사，대기진행료환원배소동보탈류회수철공예연구。시험학정적최가배소조건위：연매용량20%、탈류제BK용량16%、환원배소온도1150℃、배소시간45 min。최가배소조건획득적배소산품경량단계단마광계단약자선시험，획득료산솔42．71%、철품위92．05%、류함량0．04%、린함량0．04%、철회수솔91．11%적환원철산품，위고류청화미사자원화제공료일충신도경。
Experimental research on the reduction roasting and synchronous desulfurization for recovering iron from a high sulfur cyanide tailing with iron grade of 43. 15% and sulfur content of 1. 97% in Jiangxi Province was tested. The results indicated that the optimum parameters were proposed as follows:the mass ratio of the cyanide tailing,the bituminous coal,and desulfurizer BK of 100 ∶ 20 ∶ 16,the reduction temperature of 1 150 ℃,the roasting time of 45 min. The direct reduction iron with productivity of 42. 71%,iron grade of 92. 05%,sulfur content of 0. 04%,phosphorus content of 0. 04%,and iron recovery rate of 91. 11% was obtained through the process of two-stage grinding and magnetic separation for the reduction roasting prod-ucts. It provides a new way for the utilization of the high sulfur cyanide tailing.
