摘要
本文对粉矿悬浮磁化焙烧供料流程进行优化研究,利用生产现场高梯度立环强磁选机进行粗选和抛尾,并结合实验室螺旋溜槽开展粗精矿再选后,在精矿品位和精矿SiO2含量分别为48.46%和6.95%的条件下,按照强磁流程考查数据计算最终强磁+螺旋溜槽的精矿产率为15.38%、精矿量为39.98t/h和供悬浮的中矿产率为80.76%,中矿量为209.73t/h,强磁最终尾矿产率为3.96%,尾矿量为10.29t/h。比较原供料流程,在处理强磁原矿给矿量都为260t/h的条件下,经过强磁提精抛尾流程选别后,悬浮磁化焙烧系统负荷降低了50.27t/h。
This paper optimizes the feeding process of fine ore suspension magnetization roasting.After using the high gradient vertical ring strong magnetic separator on the production site for rough separation and tailing,and combining the laboratory spiral chute to carry out the coarse concentrate re-selection,under the conditions of 48.46%concentrate grade and 6.95%SiO2 content of the concentrate,the final production rate of the concentrate of the strong magnetic+spiral chute is 15.38%,the concentrate amount is 39.98t/h and the middings production rate for suspension is 80.76%,the middings amount is 209.73t/h,the final strong magnetic tailings yield is 3.96%,and the tailing amount is 10.29t/h.Comparing with the original material supply process,under the condition that the feeding capacity of strong magnetic raw ore is 260t/h,the load of the suspension magnetization roasting system is reduced by 50.27t/h after the selection of the strong magnetic extraction and polishing process.
作者
李宁
李广文
Li Ning;Li Guangwen(Minareal Processing and Sintering Plant of Hongxing Iron&Steel Co.Ltd.,Jiuquan Iron and Steel(Group)Corporation,Jiayuguan,Gansu,735100)
关键词
粉矿悬浮磁化焙烧
供料
流程优化
suspension magnetization roasting of fine ore
feeding
process optimization
作者简介
李宁(1984-)男,汉,甘肃瓜州人,工程师,2007年毕业于武汉工程大学矿物加工专业,现在酒钢集团宏兴股份公司选烧厂主要从事选矿技术方面工作,邮箱:lining1@jiugang.com。
