| 大红山微细粒铁尾矿沉降特性研究 |
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| 引用本文： | 罗钧耀,张召述,王金博,伍祥,唐国栋.大红山微细粒铁尾矿沉降特性研究[J].硅酸盐通报,2012,31(2):275-279. |
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| 作者姓名： | 罗钧耀 张召述 王金博 伍祥 唐国栋 |
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| 作者单位： | 昆明理工大学化学工程学院,昆明,650224;玉溪大红山矿业有限公司,玉溪,653405 |
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| 基金项目： | 国家安监总局2010年度重大事故预防重点科技计划项目 |
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| 摘 要： | 本文以大红山铁尾矿的充填为研究对象,研究了尾矿的粒度分布和自然沉降特性,比较了PAM和CBC-T对矿浆的沉降效果.研究结果表明:大红山铁尾矿属于微细粒尾矿的范畴,由于颗粒细、沉降速度慢、含水率高,很难满足充填要求；采用PAM进行絮凝处理,可以提高沉降速度,但絮体结构疏松,对胶结体强度有不良影响；采用CBC-T处理矿浆,能够显著地提高沉降速度和改善水质,在1 h内使沉降体浓度提高到60％以上,能够满足充填工程对尾矿的技术要求.
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| 关 键 词： | 铁尾矿 沉降 尾矿充填 |
Study on the Sedimentation Speciality of Dahongshan Minuteness Iron Tailings |
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| LUO Jun-yao
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ZHANG Zhao-shu
,
WANG Jin-bo
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WU xiang
,
TANG Guo-dong.Study on the Sedimentation Speciality of Dahongshan Minuteness Iron Tailings[J].Bulletin of the Chinese Ceramic Society,2012,31(2):275-279. |
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| Authors: | LUO Jun-yao ZHANG Zhao-shu WANG Jin-bo WU xiang TANG Guo-dong |
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| Affiliation: | 1.Faculty of Chemistry Engineering,Kunming University of Science and Technology,Kunming 650224,China; 2.Yuxi Dahongshan Mining Ltd,Yuxi 653405,China) |
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| Abstract: | The granularity distributing and sedimentation speciality of Dahongshan iron tailings was studied according to the need of filling in this paper.The sedimentation results between PAM and CBC-T was researched.The result indicated that this tailings belong to minute granule level and it was difficult to use in mine filling because of high moisture rate,slow sedimentation rate and minuteness granule.The PAM could increase the sedimentation rate,but structure of flocculate body was loose and had bad affection on the cementation.The CBC-T could increase the sedimentation rate and improve the water quality,could make the concentration exceed 60% within 1 h and could meet the technological need of mine filling. |
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| Keywords: | iron tailings sedimentation tailings filling |
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