摘要
试验分析表明 ,立式冲击分级磨可以用于大长径比超细硅灰石针状粉的加工制备 ;系统的给料量、冲击转子转速和分级转子转速等主要参数的变化 ,对产品的长径比和颗粒直径影响显著。经合理选择上述参数 ,可得到平均直径约 3.3μm、长径比接近 15的硅灰石针状粉。
Ultrafine needle_shaped wollastonite powder with large aspect ratio has immense application value in industry. There are two ways of increasing aspect ratio of needle_shaped wollastonite powder. One is the good selection of preparation machine with suitable comminution mechenism. The other is the proper processing condition. The authors used a vertical impact_classified mill in the experiment. For the purpose of attaining the preparation aim of large aspect ratio, the main technological parameter was adjusted. It is indicated that the mill is quite suitable for the preparation of needle_shaped wollastonite powder, and the adjustment of main parameters (federate, impact rotational speed and classified rotational speed) has a strong influence upon the aspect ratio and the grain diameter of the product. Through the experiment, the authors have succeeded in preparation of needle_shaped wollastonite powder whose average diameter is 3.3 μm and whose aspect ratio is 15.
出处
《岩石矿物学杂志》
CAS
CSCD
北大核心
2002年第3期272-277,共6页
Acta Petrologica et Mineralogica
