一、概况 篦子沟选矿厂原设计磨矿流程为两段磨矿,根据可选性报告和原设计磨矿细度要求达到-200网目70％以上方能获得较好的技术指标。 但1960年要求简易试生产,将原设计改为φ3200×3100格子型球磨机和φ2400高堰式双螺旋分级机组成的一段磨矿作业,如图1,由于短筒型φ3200×3100格子型球磨机排矿速度快、磨矿时间短,给篦子沟矿粗细不均匀的矿石的细磨带来了很大困难。该机从 First, an overview Gobizou concentrator original design grinding process for the two grinding, according to the optional report and the original design of grinding fineness required -200 mesh reached more than 70% in order to obtain better technical indicators. But in 1960 requires a simple trial production, the original design to φ3200 × 3100 lattice type ball mill and φ2400 high weir type double helix grader composed of a grinding operation, as shown in Figure 1, due to the short tube type φ3200 × 3100 grid ball mill row Mine speed, grinding time is short, to Gouzi ditch uneven thickness of ore fine grinding brought great difficulty. The machine from