傲牛铁矿三采区全尾砂胶结充填试验研究
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摘要
傲牛铁矿三采区采用分段凿岩阶段矿房法开采,矿房回采即将结束,下一步将回采矿柱以接续生产。基于此,需要对原有矿房的采空区进行嗣后充填,因此亟待开展全尾砂胶结充填试验研究,为制定采空区充填方案提供基础数据。基于傲牛铁矿全尾砂的粒度组成、输送性能、沉降性能等基础实验,提出了合理的充填料浆浓度范围,并对不同灰砂比、不同浓度的胶结充填体强度进行了对比分析,确定了灰砂比1∶6、料浆浓度76%为最优充填工艺参数,为制定现场的采空区充填方案提供了理论依据。
Sublevel Drilling Stage Room Stoping has been applied in No.3 mining area of Aoniu Iron Mine,and the accomplishment of stoping is followed by pillar recover for subsequent production.Based on this,it is necessary to carry out the post-filling of the goaf of the original mine,therefore cemented filling experiment on unclassified tailings is essential to be carried out to providing basic data for formulating a filling scheme.Tailings granularity,transportation performance and settling performance were measured to propose reasonable range of filling slurry concentration,and cemented backfill strengthin different cement-sand ratios and concentrationswere compared and analyzed,the lime sand ratio of 1∶6 and the slurry concentration of 76% were determined as the optimal filling process parameters,providing a theoretical basis for the development of the goaf filling scheme on site.
Sublevel Drilling Stage Room Stoping has been applied in No.3 mining area of Aoniu Iron Mine,and the accomplishment of stoping is followed by pillar recover for subsequent production.Based on this,it is necessary to carry out the post-filling of the goaf of the original mine,therefore cemented filling experiment on unclassified tailings is essential to be carried out to providing basic data for formulating a filling scheme.Tailings granularity,transportation performance and settling performance were measured to propose reasonable range of filling slurry concentration,and cemented backfill strengthin different cement-sand ratios and concentrationswere compared and analyzed,the lime sand ratio of 1∶6 and the slurry concentration of 76% were determined as the optimal filling process parameters,providing a theoretical basis for the development of the goaf filling scheme on site.
引文
[1]王青.采矿学[M].北京:冶金工业出版社,2011.
[2]刘可任.充填理论基础[M].北京:冶金工业出版社,1982.
[3]刘明.内蒙查干银矿3#矿体上向进路尾砂胶结充填采矿方法试验研究[D].长沙:中南大学,2002.
[4]李欣,郭利杰,许文远.某铁矿全尾砂充填体特性研究[J].中国矿业,2017,26(5):98-101.
[5]刘龙,华超,杨晓军.张庄铁矿全尾砂充填料浆胶结试验[J].现代矿业,2017,33(10):157-158.
[6]郭利杰,许文远,谭钦文,等.废石尾砂胶结充填体材料力学特性研究[J].矿物学报,2010(增刊1):74.
[7]王正辉,张丰田,莫亚斌.尾砂充填料浆的配合比试验研究[J].矿业研究与开发,2006(1):11-13.
[8]李家明,张兆仁,牛文杰,等.特大型铁矿全尾砂胶结充填试验[J].有色金属(矿山部分),2013,65(3):4-7.
[9]唐礼忠,彭续承.尾砂胶结充填体变形及强度试验研究[J].中南工业大学学报,1996,27(2):145-148.
[10]邱景平,张国联,邢军,等.小官庄铁矿试验矿块胶结充填试验研究[J].有色金属(矿山部分),2011,63(5):11-14.
[11]郭廷儒,李占金.铁矿尾砂胶结充填体的合理配比试验研究[J].中国金属通报,2017(9):112-113.
[12]孙凯年,刘可任.尾砂粒度对充填体物理力学性质的影响[J].有色金属,1983,35(3):16-24.
[13]赵彬.焦家金矿尾砂固结材料配比试验及工艺改造方案研究[D].长沙:中南大学,2009.
[2]刘可任.充填理论基础[M].北京:冶金工业出版社,1982.
[3]刘明.内蒙查干银矿3#矿体上向进路尾砂胶结充填采矿方法试验研究[D].长沙:中南大学,2002.
[4]李欣,郭利杰,许文远.某铁矿全尾砂充填体特性研究[J].中国矿业,2017,26(5):98-101.
[5]刘龙,华超,杨晓军.张庄铁矿全尾砂充填料浆胶结试验[J].现代矿业,2017,33(10):157-158.
[6]郭利杰,许文远,谭钦文,等.废石尾砂胶结充填体材料力学特性研究[J].矿物学报,2010(增刊1):74.
[7]王正辉,张丰田,莫亚斌.尾砂充填料浆的配合比试验研究[J].矿业研究与开发,2006(1):11-13.
[8]李家明,张兆仁,牛文杰,等.特大型铁矿全尾砂胶结充填试验[J].有色金属(矿山部分),2013,65(3):4-7.
[9]唐礼忠,彭续承.尾砂胶结充填体变形及强度试验研究[J].中南工业大学学报,1996,27(2):145-148.
[10]邱景平,张国联,邢军,等.小官庄铁矿试验矿块胶结充填试验研究[J].有色金属(矿山部分),2011,63(5):11-14.
[11]郭廷儒,李占金.铁矿尾砂胶结充填体的合理配比试验研究[J].中国金属通报,2017(9):112-113.
[12]孙凯年,刘可任.尾砂粒度对充填体物理力学性质的影响[J].有色金属,1983,35(3):16-24.
[13]赵彬.焦家金矿尾砂固结材料配比试验及工艺改造方案研究[D].长沙:中南大学,2009.