采用尾矿固结排放技术处理西石门铁矿尾矿,可以不建尾矿库.尾矿固结排放工艺流程主要包括泵砂、添加胶凝材料、尾矿脱水和脱水后尾矿堆排.通过实验室和工业试验,优选出适用的胶凝材料并得到胶凝材料配比规律,得出浓缩脱水设备的技术参数.根据试验结果提出50万t/a尾矿固结排放系统优化方案.根据试验和分析计算,预计西石门铁矿尾矿固结排尾的综合成本低于尾矿库排尾.此外,尾矿固结排尾不需要建尾矿库,同时治理了塌陷区,因此经济效益和社会效益显著.%The tailing's cementation and discharging technology is adopted to deal with the mine tailings of Xishimen iron ore, so that tailings dam does not need to build. The cementation of tailings mainly includes the process of pumping sand, adding cementation material, tailings'dehydrating, and piling after dehydration. Through the laboratoiy tests and the industrial experiments, the applicable cementation material is optimized and the mixing ratio and the technical parameters of dehydration equipment are obtained. According to the results, the systematic optimal plan of tailings cementation and discharging system with capacity of 500,000 t/a is put forward. According to the tests and calculation, the overall costs of tailings'cementation and discharging of Xishimen iron ore are lower than the costs of discharging tailings. In addition, this technology does not require the construction of the tailings dams, meanwhile it can also treat the collapse area, with great economic and social benefits brought
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