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0.08mm,-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22mm×58mm×50mm的空心试块,自然干燥后,在1080～1170℃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。
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.
出处
《金属矿山》
CAS
北大核心
2010年第5期186-188,共3页
Metal Mine
关键词
铁矿尾矿
多孔砖
烧结
Iron ore tailings
Perforated brick
Sintering
