摘要
为绿色应用鞍钢轧钢铁红资源,进行了球团中配加轧钢铁红的实验室研究及配入轧钢铁红的球团矿机理研究。结果表明:当膨润土配比一定时,铁红配比由0%逐渐增加至3%,生球落下强度、生球抗压强度和干球抗压强度均随铁红配比增加而降低,还原膨胀率略有增加;若保证相同的生球落下强度,球团每增加1%的铁红配比,膨润土配比需相应增加0.12个百分点。由于铁红连晶能力较强,球团内部磁铁矿也形成连晶,孔洞和裂隙减少,因而成品球的抗压强度随铁红的配加量增加而提高。
An experimental investigation on agglomeration with rolling dust （RD） has been done for environmental friendly utilization. The results show that as the RD rate increases from 0 % to 3 %, the dropping strength and compression strength of green ball and compression strength of baking ball decrease with a fixed bentonite, on the other hand, three index mentioned above are improved with a growing bentonite content, and the product pellets＇ compression strength and expanding rate increase with a decreasing RD proportion. Finally it was suggested that the RD is not used in agglomeration process.
出处
《中国冶金》
CAS
2009年第12期23-26,共4页
China Metallurgy
关键词
球团
铁红
膨润土
agglomeration
rolling dust
bentonite
