黄金科学技术 ›› 2018, Vol. 26 ›› Issue (3): 305-311.doi: 10.11872/j.issn.1005-2518.2018.03.305
王新民,赵茂阳,荣帅,王浩,张云海
WANG Xinmin,ZHAO Maoyang,RONG Shuai,WANG Hao,ZHANG Yunhai
摘要: 为探究阴离子型聚丙烯酰胺(APAM)对全尾砂胶结充填体早期强度的影响,采用动态浓密实验装置向全尾砂浆中添加不同单耗和相对分子量的APAM,将所得底流制备成质量浓度为70%、72%、74%,灰砂比为1∶4和1∶8的胶结充填体试块并进行7d抗压强度测试,并借助扫描电镜(SEM)对充填体微观结构进行观察分析。结果表明:APAM对充填体早期强度具有一定的影响,当灰砂比越小、料浆质量浓度越高时,APAM相对分子量越大,对充填体强度影响越大,强度降低越显著;充填体强度随APAM单耗增加先增大后减小;SEM结果表明,APAM引入封闭气孔到充填体中,但适量的APAM能够促进水泥水化反应的进行,充填体内部水化产物黏结更紧密,使充填体早期强度增加;在实验范围内,APAM的最佳单耗为5 g/t。
中图分类号:
[1] | 周爱民,古德生.基于工业生态学的矿山充填模式[J].中南大学学报(自然科学版),2004,35(3):468-472.<br /> |
Zhou Aimin,Gu Desheng.Mine-filling model based on industrial ecology[J].Journal of Central South University of Technology(Sciences and Technology),2004,35(3):468-472.<br /> | |
[2] | Khaldoun A,Ouadif L,Baba K,et al.Valorization of mining waste and tailings through paste backfilling solution,imiter operation,Morocco[J].International Journal of Mining Science and Technology,2016,26(3):511-516.<br /> |
[3] | Sivakugan N,Rankine R M,Rankine K J,et al. Geotechnical considerations in mine backfilling in Australia[J]. Journal of Cleaner Production,2006,14(12/13):1168-1175.<br /> |
[4] | Wang X M,Zhao J W,Xue J H,et al.Features of pipe transportation of paste-like backfilling in deep mine[J].Journal of Central South University of Technology,2011,18(5):1413-1417.<br /> |
[5] | 吴爱祥,焦华喆,王洪江,等.深锥浓密机搅拌刮泥耙扭矩力学模型[J].中南大学学报(自然科学版),2012,43(4):1469-1474.<br /> |
Wu Aixiang,Jiao Huajie,Wang Hongjiang,et al.Mechanical model of scraper rake torque in deep-cone thickener[J].Journal of Central South University (Science and Technology),2012,43(4):1469-1474.<br /> | |
[6] | Usher S P,Scales P J.Steady state thickener modelling from the compressive yield stress and hindered settling function[J].Chemical Engineering Journal,2005,111(2/3):253-261.<br /> |
[7] | Wang X M,Zhao B,Zhang Q L,et al.Cemented backfilling technology with unclassified tailings based on vertical sand silo[J].Journal of Central South University of Technology,2008,15(6):801-807.<br /> |
[8] | 王勇,吴爱祥,王洪江,等. 絮凝剂用量对尾矿浓密的影响机理[J].北京科技大学学报,2013,35(11):1419-1423.<br /> |
Wang Yong,Wu Aixiang,Wang Hongjiang,et al.The mechanism of flocculation on sedimentation[J].Journal of University of Science and Technology Beijing,2013,35(11):1419-1423.<br /> | |
[9] | 何哲祥.絮凝剂对胶结充填体强度的影响[J].长沙矿山研究院季刊,1990,10(1):48-53.<br /> |
He Zhexiang.Flocculant’s influence on the strength of cementing filling body[J].Quarterly of Changsha Mining Research Institute,1990,10(1):48-53.<br /> | |
[10] | 史秀志,胡海燕,杜向红,等.立式砂仓尾砂浆液絮凝沉降试验研究[J].矿冶工程,2010,30(3):1-3.<br /> |
Shi Xiuzhi,Hu Haiyan,Du Xianghong,et al.Experimental study on flocculating sedimentation of tailings slurry in a vertical sand tank[J].Mining and Metallurgical Engineering,2010,30(3):1-3.<br /> | |
[11] | Selomuya C,Jia X,Williams R A.Direct Prediction of structure and permeability of flocculated structures and sediments using 3D tomographic imaging[J].Chemical Engineering Research and Design,2005,83(7):844-852.<br /> |
[12] | Eswaraiah C,Biswal S K,Mishra B K.Settling characteristics of ultrafine iron ore slimes[J].Internation Journal of Minerals Metallurgy and Materials,2012,19(2):95-99.<br /> |
[13] | 吴文.添加絮凝药剂的尾矿砂浆充填材料的单轴抗压强度试验研究[J].岩土力学,2010,31(11):3367-3372.<br /> |
Wu Wen.Investigation on uniaxial compressive strength of flocculated slurry backfill materials for minefill applications[J].Rock and Soil Mechanics,2010,31(11):3367-3372.<br /> | |
[14] | Wang Y,Gao B,Yue Q,et al.Effect of viscosity,basicity and organic content of composite flocculant on the decolorization performance and mechanism for reactive dyeing wastewater[J].Journal of Environmental Sciences,2011,23(10):1626-1633.<br /> |
[15] | 刘志祥,李夕兵.尾砂分形级配与胶结强度的知识库研究[J].岩石力学与工程学报,2005,24(10):1789-1793.<br /> |
Liu Zhixiang,Li Xibing. Study on fractal gradation of tailings and the knowledge bank of cementation strength[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(10):1789-1793.<br /> | |
[16] | 张玉佩,申向东.聚丙烯酰胺对水泥土强度影响的试验研究[J].硅酸盐通报,2012,31(6):1636-1640.<br /> |
Zhang Yupei,Shen Xiangdong.Experiment study of AP-AM on cement toil strength[J].Bulletin of the Chinese Ceramic Society,2012,31(6):1636-1640.<br /> | |
[17] | Patrick T S,Sotiris E P.Shear-induced flocculation:The Eveolution of floc structure and the shape of the size distribution at steady state[J].Water Resource,1996,30(5):1049-1056.<br /> |
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