低品位锰尾矿渣强度和碱度试验研究  

Experimental Study on Strength and Alkalinity of Low Grade Manganese Tailings

作　　者：吕洪淼 王华庆[1] Lü Hongmiao;Wang Huaqing(1 School of Civil Engineering, Liaoning Technical University, Fuxin, Liaoning 123000;School of City Construction, Eastern Liaoning University, Dandong, Liaoning 118000)

机构地区：[1]辽宁工程技术大学土木工程学院,辽宁阜新123000 [2]辽东学院城市建设学院,辽宁丹东118000

出　　处：《非金属矿》2019年第4期47-50,共4页Non-Metallic Mines

摘　　要：采用X射线荧光探针和微机控制电子万能试验机对低品位锰尾矿渣强度和碱度进行测试,分别研究不同掺量的生石灰、氢氧化钠、硅酸钠及石膏对低品位锰尾矿渣强度和碱度的影响,得到各添加试剂的最佳掺量。结果表明:该菱锰矿渣属于酸性尾矿渣,潜在水化反应性能相对较差。在单因素试验分析中,发现当生石灰掺量为20%、氢氧化钠为1%、硅酸钠为4%、石膏为6%时,试样的胶砂强度均达到最佳状态。The strength and alkalinity of low-grade manganese tailings slag were tested by X-ray fluorescence probe and computer controlled electronic universal testing machine. The strength of low-grade manganese tailings slag was studied by using different amounts of quicklime, sodium hydroxide, sodium silicate and gypsum. And the effect of alkalinity, thereby obtaining the optimum amount of each added reagent. The results show that the rhombohedral slag belongs to acidic tailings slag and the potential hydration reaction performance is relatively poor. In the single factor test analysis, it was found that when the amount of quicklime was 20%, the amount of sodium hydroxide was 1%, the amount of sodium silicate was about 4%, and the amount of gypsum was about 6%, the strength of the mortar of the sample reached the optimum state.

关 键 词：低品位锰尾矿渣 强度 碱度 生石灰 氢氧化钠 硅酸钠 石膏 

分 类 号：TD973[矿业工程—选矿]