黄麦岭磷矿是一个大型沉积变质中低品位的磷灰岩矿床,地质勘探阶段定为硅质易选矿石。经过几年生产探矿及选矿研究发现,由于原岩沉积与后期变质条件的差异,形成磷矿石在不同层位、地段中,矿石的结构构造、脉石矿物、矿物嵌布都有较大差异,可选性变化也较大。 近年来在采选计划的编制中,采取了分类勘探、分类安排采选作业、产品分别利用的技术方案,使企业的技术管理、经济指标都获得了较好的效果。 一、矿石的自然类型及矿物成分 黄麦岭磷矿石可分为三种自然类型: 浅粒磷灰岩:矿石呈灰白色,风化矿为 Huangmeiling phosphate rock is a large sedimentary metamorphism of low-grade phosphorite deposits, geological prospecting stage for the easy-selected silicon ore. After several years of production prospecting and mineral processing studies found that due to the difference between the original rock deposition and late metamorphism, the formation of phosphate rock in different layers, lots, the structural structure of ore, gangue minerals, mineral embedded are quite different , Optional changes are larger. In recent years in the preparation of mining plans, adopted a classification of exploration, classification of mining operations, products, respectively, the use of technical solutions to enable enterprises to achieve technical management, economic indicators have achieved good results. First, the natural type of ore and mineral composition Huangmeiling phosphate rock can be divided into three types of natural: shallow phosphorite: ore is gray, weathered ore