聚乙烯塑料–煤粉与铁精矿混合球团性能研究
Research on the Performance of Iron Ore Pellets Containing Coal and Polyethylene
作者: 刘 静 , 郭 锐 ：安徽工业大学，安徽 马鞍山; 刘良轩 ：安徽省东部矿山设计院，安徽 合肥; 刘 成 ：马钢集团四钢轧总厂，安徽 马鞍山; 李文文 ：马鞍山市工业经济联合会，安徽 马鞍山;
关键词: 聚乙烯塑料； 混合含碳球团； 直接还原； 还原度； 孔隙率； Polyethylene Plastic； Mixed Pellets Containing Carbon； Direct Reduction； Reducibility； Porosity
摘要:Abstract: Experimental researches on characteristics of the mixed pellets containing carbon which are made from pulverized coal mixed with polyethylene plastic and iron ore were carried out. The results show that under certain material particle size, moisture content percent and certain amount of bentonite conditions, cold state performance of pellets containing carbon mixed with addition of polyethylene plastic is reinforced, meaning that the more amount of plastic added in the mixed pellets, the better the cold strength to increase the strength of the dry bulb apparently. After the roasting reduction, strength of pulverized reductant polyethylene pellets with mixed rates of 1:1 (or 1:2) is better than that of pulverized coal pellet, and mineralogical analysis on polyethylene pellets shows that the addition of polyethylene plastic can improve the conditions of the reducing process heat and promote the reducing reaction, and the reducing area concentrates around the polyethylene plastic particles.
文章引用: 刘 静 , 刘良轩 , 刘 成 , 李文文 , 郭 锐 (2015) 聚乙烯塑料–煤粉与铁精矿混合球团性能研究。 冶金工程， 2， 49-56. doi: 10.12677/MEng.2015.22008
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