提高大冶铁精矿球团质量的试验研究  

Experimental Research on Improving the Quality of Pellet Made of Daye Iron Concentrate

作　　者：康兴东 夏春才 陈志英 刘建朋[4] 马蕾[5] 张华丽[5] 

机构地区：[1]中冶东方工程技术有限公司 [2]中冶长天国际工程有限公司 [3]韶关钢铁集团公司 [4]唐山钢铁设计研究院 [5]武汉科技大学

出　　处：《金属矿山》2008年第10期67-69,75,共4页Metal Mine

摘　　要：通过球团试验,得出用大冶铁精矿生产高质量球团矿的措施。试验结果表明:在大冶铁精矿-0.074mm粒级含量为93.35%、粘结剂临安膨润土用量为2%、水分为8.0%条件下,通过严格控制造球时间、给料与给水速度和给料与给水方式等,可获得优质球团矿,其生球0.5 m落下强度>3.8次,抗压强度12.0 N个/,爆裂温度>450℃,成品球抗压强度>2.5 kN/个。The measures for producing high quality pellets from Daye iron concentrate are found through pelletizing test. The test result indicates that when using a Daye iron concentrate which contains 93.35 % -0.074 mm fraction, 2% Linan betonite as binder and 8.0% moisture, through strict control of the pelletizing time and the material and water feeding rate and mode, fine quality pellets can be produced. The green balls have a drop strength at 0.5 m greater than 3.8 times, a compressive strength of 12.0 N per ball and a burst temperature of higher than 450 ℃. The compressive strength of the pellet product is greater than 2.5 kN per pellet.

关 键 词：大冶铁精矿 球团 -0.074 mm粒级含量 膨润土用量 水分 

分 类 号：TF046[冶金工程—冶金物理化学] TF822