湿法堆存工艺中磷石膏固结特性研究  

Study on consolidation characteristics of phosphogypsum in wet storage process

作　　者：吴鹏程[1,2] 房定旺[1,2] 毛权生[1,2] WU Pengcheng;FANG Dingwang;MAO quansheng(National Key Laboratory {or Sa{ety and Health of Metal Mines,Maanshan Anhui 243000,China;China Steel Group Maanshan Mining Research Institute Co.,Ltd.,Maanshan Anhui 243000,China)

机构地区：[1]金属矿山安全与健康国家重点实验室,安徽马鞍山243000 [2]中钢集团马鞍山矿山研究院有限公司,安徽马鞍山243000

出　　处：《化工矿物与加工》2019年第1期56-59,共4页Industrial Minerals & Processing

摘　　要：从磷石膏生成过程分析磷石膏的化学特性和物理力学特性,由分析可知湿法堆存工艺中堆积体透水性较强,固结速度较快,力学强度较高。磷石膏独特的形貌特征和粒径分布,决定其水力冲积填筑规律与尾矿有明显的差异。在排水和蒸发作用下,磷石膏堆积体表层固结速度非常快。在深部压缩与结晶共同作用下,磷石膏堆积体能够在较短的时间内固结为半成岩。The chemical and physical mechanical properties of phosphogypsum are analyzed from the formation process of phosphogypsum.It can be seen from the analysis that the wet storage technology has strong permeability,fast consolidation speed and high mechanical strength.The unique morphological characteristics and particle size distribution of phosphogypsum determine that its hydraulic alluvial filling law is significantly different from that of tailings.Under the action of drainage and evaporation,the surface consolidation speed of phosphogypsum deposits is very fast.Under the combined action of deep compression and crystallization,phosphogypsum deposits can consolidate into semi-diagenetic rocks in a relatively short time.

关 键 词：磷石膏 湿法堆存 固结 结晶 半成岩 

分 类 号：X781[环境科学与工程—环境工程]