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金属矿山 ›› 2010, Vol. 39 ›› Issue (05): 186-189.

• 综合利用 • 上一篇    

铁矿尾矿制备烧结多孔砖的研究

孙天虎, 任京成, 吕丽华   

  1. 山东理工大学
  • 出版日期:2010-05-15 发布日期:2010-11-09

Study of Sintering Perforated Brick Technology Using Iron Ore Tail

Sun Tianhu,Ren Jingcheng,Lu Lihua   

  1. Shandong University of Technology
  • Online:2010-05-15 Published:2010-11-09

摘要: 某尾矿属邯郸型高钙、镁尾矿,主要组成矿物为石英、白云石、绿泥石、云母、方解石等;平均粒度为0.08 mm,-200目的含量为45.82%,粘性粒级含量约为28%;尾矿的可塑性较好,干燥敏感性低。全尾矿在水分为17%的条件下,经混匀、挤出为22 mm×58 mm×50 mm的空心试块,自然干燥后,在1 080~1 170 ℃下烧结。实验表明,采用该铁矿全尾矿烧制多孔砖是可行的,其性能完全达到GB13544—2000标准中强度等级为MU15的要求。

关键词:  铁矿尾矿, 多孔砖, 烧结

Abstract: The tailing belongs to Handan-tailing which is a high calcium and magnesium tailings.The main mineral componentis are quartz,dolomite,chlorite,mica,calcite,etc.; The average partical size of the mineral is 0.08 mm,-0.037 mm for the purpose of 45.82%,viscous particle content of 28%.The plasticity of the tailings is better,and drying sensitivity of the tailings is lower.All tailings in condition of the 17% increase water,by mixing,extrusion and forming could make 22 mm×58 mm×50 mm cylindrical samples,sintering at the temperature of 1 080~1 170 ℃ after natural dry.After experimental evidence,it's feasible to produce fired perforated brick using all the iron ore mining that company tailings,and its performance fully meet the requirements of GB13544-2000 standard and the middle strength for the MU15.

Key words: Iron ore tailings, Perforated brick, Sintering