众所周知,磨矿是一个耗能耗资大的选矿准备作业,直接影响整个选矿技术经济指标,因此,寻求合理的细磨分级流程和设备匹配是决定胶磷矿选矿成败的关键,又是获得较好的细磨技术经济指标的重要因素。虽然某些专著、文献资料中对细磨分级有所论述,但研究和介绍具有微细结构硅钙质型的胶磷矿的细磨分级的系统试验和生产实际资料不多。本文论述了半工业试验条件下,石门磷矿两段连续磨矿分级流程及已经获得的细磨分级系统试验的结 As we all know, grinding is a large energy consumption preparation operation, a direct impact on the entire beneficiation technical and economic indicators, therefore, to find a reasonable fine grading process and equipment matching is the key to determining the success or failure of phosphate rock phosphate beneficiation, but also get better Fine grinding technical and economic indicators of the important factors. Although some monographs and literature have discussed the classification of fine grinding, there is not much practical data on the research and production of the system for the fine grading study and introduction of the fine grinding grade of dolomite with fine structure silicon-calcium type. This paper discusses the semi-industrial test conditions, Shimen phosphate rock two stages of continuous grinding and grading process and has been obtained fine grading system test knot