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DOI:
有色金属(矿山部分):2020,72(3):93-98
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全尾砂改性固化力学性能研究
崔益源1, 梅国栋1, 常宝孟2, 王雅莉1
(1.北京矿冶科技集团有限公司;2.北京科技大学)
Study on Mechanical Properties of Modified Solidification Tailings
CUI Yiyuan1, MEI Guodong1, CHANG Baomeng2, WANG Yali1
(1.BGRIMM Technology Group;2.University Of Science Technology Beijing)
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投稿时间:2020-03-03    修订日期:2020-03-05
中文摘要: 为实现浓缩全尾砂固化堆存,达到地表无害化处理目的,选用矿渣粉、生石灰、工业石膏和膨润土开发尾砂改性固化剂。以三山岛金矿全尾砂为研究对象,测定了尾砂的物化性质;设计了改性固化剂配比试验和正交试验,对固结体强度的影响因素进行了分析,确定了改性固化剂的最佳配比。结果表明:随着生石灰、工业石膏和膨润土占比的增加,尾砂固结体强度变化为先增大后减小,尾砂料浆浓度越大,固结体强度越大;工业石膏的含量变化对尾砂固结体的强度影响最显著;在灰砂比1:20条件下,适合三山岛全尾砂固结的最佳改性固化剂配比为:矿渣粉68.8%、生石灰13%、工业石膏7%、膨润土1.2%。
Abstract:To achieve the purpose of solidifying and stacking the tailings and surface harmless disposal, the slag powder, quicklime, industrial gypsum and bentonite are selected as component to develop the tailing modifying and solidifying agent. The concentrated tailings of Sanshandao gold mine samples are used to test the physical and chemical properties. The ratio test and of orthogonal test are designed to analyze the influence factors of the strength of the consolidated body, and the best ratio of the agent is determined. The results show that with the increase of the proportion of quicklime, industrial gypsum and bentonite, the strength of the consolidated body of tailings increases first and then decreases. The strength of the consolidated body increases with the increase of tailings slurry concentration. The content of industrial gypsum has the most significant influence on the strength of the consolidated body. When the ratio of lime to sand is 1:20, the best ratio of the modifier for the consolidation of the whole tailings of Sanshan island is slag Powder 68.8%, quicklime 13%, industrial gypsum 7%, bentonite 1.2%.
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基金项目:国家重点研发计划项目“浓缩全尾砂地表无害化堆存技术研究”(编号:2018YFC0604605)
引用文本:
崔益源,梅国栋,常宝孟,王雅莉.全尾砂改性固化力学性能研究[J].有色金属(矿山部分),2020,72(3):93-98.
CUI Yiyuan,MEI Guodong,CHANG Baomeng,WANG Yali.Study on Mechanical Properties of Modified Solidification Tailings[J].NONFERROUS METALS(Mining Section),2020,72(3):93-98.

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