Zheng Shaohua，T ao Zhendong，Liu Futian，Jiang Fenghua

（Departmen of M aterial Science and Engineering，Shandong

Institute of Building M atials Industry，Jinan 250022）

Abstract

The improvement and magnification of super-fine pow der jet classifier is carried out based on flow field analysis of the small classifier in laboratory．T he experimental study results prove that the classification properties of the improved classifier increase remarkably，and its flow field distribution is more reasonable．

Keywords：super-fine pow der；jet classifying；mathematics regression；flow field distribution

DOI：10.13732/j.issn.1008-5548.1999.02.003