云南省滇池地区磷矿资源十分丰富，是我国最大的磷化工矿山基地，先后建设了许多磷矿石擦洗厂，如海口、安宁、晋宁、尖山、中滩洗厂等。磷矿石经擦洗之后，产生部分细粒级物料，其中有用矿物是用水力旋流器分级的，底流浓度大致在40％～50％，这部分物料的脱水晋宁磷矿是采用 Dianchi Lake in Yunnan Province is rich in phosphate rock resources, is China’s largest base of phosphorus chemical mine, has constructed a number of phosphate rock scrubber factory, such as Haikou, peace, Jinning, Jianshan, Zhongtan washing plant. Phosphate rock after scrubbing, resulting in part of the fine-grained material, of which the useful minerals are hydroclone grading, underflow concentration of about 40% to 50%, this part of the material Jinning phosphate rock is used