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金属矿山 ›› 2008, Vol. 38 ›› Issue (10): 67-69+75.

• 矿物工程 • 上一篇    下一篇

提高大冶铁精矿球团质量的试验研究

康兴东1,夏春才2,陈志英3,刘建朋4,马蕾5,张华丽5   

  1. 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
  • 收稿日期:2008-08-10 出版日期:2008-10-15 发布日期:2011-07-13

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

Kang Xingdong1,Xia Chuncai2,Chen Zhiying3,Liu Jianpeng4,Ma Lei5,Zhang Huali5   

  1. 1.MCC Beris Engineering and Research Corporation;2.MCC Changtian International Engineering and Research Corporation;3.Shaoguan Iron and Steel Group Company;4. Tangshan Iron and Steel Design  Institute;5.Wuhan University of Science and Technology
  • Received:2008-08-10 Online:2008-10-15 Published:2011-07-13

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-0.074 mm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。

关键词: 大冶铁精矿, 球团, -0.074 mm粒级含量, 膨润土用量, 水分

Abstract: 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.

Key words: Daye iron concentrate, Pellet, -0.074 mm fraction content, Benotite dosage, Moisture