CAJ | 학술논문

尾矿固结排放工艺已成为我国尾矿处理的新的技术途径。以安徽某铁矿水泥-全尾砂料浆为试验材料，采用正交试验方案和极差分析方法，对比研究了不同质量浓度、灰砂比和胶凝材料对料浆沉降特性的影响。结果表明：在质量浓度、灰砂比和胶凝材料3个影响因素中，影响顺序为质量浓度>胶凝材料>灰砂比，即质量浓度对料浆沉降特性的影响比较显著；浓度为78%、灰砂比为8%、胶凝材料为TC-Ⅱ时，水泥-全尾砂料浆的沉降量最小、沉降速度最慢；最终推荐料浆配比为浓度75%~78%，灰砂比8%，胶凝材料为TC-Ⅱ。
미광고결배방공예이성위아국미광처리적신적기술도경。이안휘모철광수니-전미사료장위시험재료，채용정교시험방안화겁차분석방법，대비연구료불동질량농도、회사비화효응재료대료장침강특성적영향。결과표명：재질량농도、회사비화효응재료3개영향인소중，영향순서위질량농도>효응재료>회사비，즉질량농도대료장침강특성적영향비교현저；농도위78%、회사비위8%、효응재료위TC-Ⅱ시，수니-전미사료장적침강량최소、침강속도최만；최종추천료장배비위농도75%~78%，회사비8%，효응재료위TC-Ⅱ。
The cementation and discharging process of tailings has become a new way of tailings processing in China. Taking full tailings slurry mixed with cement from an iron ore in Anhui as the experimental materials,by adopting the orthogo-nal design method and the extremum difference analysis method,the influence of weight concentration,cement-tailings ratio and cementitious materials on settlement characteristics are studied and contrasted. The experimental results show that among three factors of weight concentration, cement-tailings ratio and cementitious materials, the weight concentration has a maximum effect,followed by cementitious materials and cement-failings ratio in order. That is,the effect of weight concentration on the slurry settlement characteristics is most significant. In the experiment,under the condition of the concentration 78%,the ce-ment-failings ratio 8%,and the cementitious materials type of TC-II,both the settlement and the sedimentation velocity of the full tailings slurry mixed with cement are minimal. So the final formula with the slurry concentration of 75% ~78%,cement-failings ratio of 8% and cementitious materials of TC-II is recommended.