高效矿渣微粉磨机的开发

Development of efficient slag micronizer

普通开路长磨(三仓)过粉磨现象严重,比表面积虽然较大,但产品颗粒不集中,粒径分布宽,影响矿渣微粉活性的发挥和产量提高。针对矿渣入磨粒度小、易磨性差等特点,对开流长磨机进行相应改造。一仓采用钢棒作为研磨体,以提高粉碎能力和粒度均匀性,降低进入二仓的粒度,减少过粉磨现象。针对一仓钢棒粉碎能力大的情况,重新设计磨内有关参数(仓长、衬板及研磨体装载量等),采用筛分技术改造磨内隔仓板,平衡系统的粉磨能力,从而达到提高矿渣微粉产质量的目的。

There is over-grinding in ordinary open-circuit long micronizer(three-bin).Despite of large specific surface area,the product size distributed widely,which made against the activity display and yield increase of slag micro-powder.In view of small size and poor grindability of feeding slag,the open-circuit long micronizer was reconstructed.In bin one,steel bars were applied to enhance the grinding ability and size uniformity,so as to reduce the size of products entering bin two and lessen over-grinding.In view of large grinding ability by using steel bars in bin one,related parameters(length of the bin,loading of liners and grinding media,etc.) of the micronizer were determined again.In addition,sieving technology was applied to reconstruct the bin partition in the micronizer so as to balance the grinding ability of the system,thus the yield and quality of slag micro-powder improved.