利用锰矿酸浸废渣制备免烧砖的研究.pdf
文档页数：4文档大小：1.14MB文档格式：pdf粉煤灰综合利用 2013No.6 FLY ASH COMPREHENSIVE UTILVZATION墙材革新 利用锰矿酸浸废渣制备免烧砖的研究 Experimental Study on Preparation of Non-burnt Brick from Acid Leaching Manganese Residue袁明亮,刘维荣,赖颖明,明宪权2,黎贵亮2,陈南雄2 (1.中南大学资源加工与生物工程学院,长沙410083;2.中信大锰矿业有限责任公司,南宁410006 摘要:以酸浸锰渣、石灰和水泥为主要原料,用河砂作为骨料,采用压力成型的方法制备锰渣免蒸免烧砖的研究。 采用单因子试验法确定了最佳的成型压力并对影响强度的胶砂比进行了分析采用正交试验法研究了原料的最佳配 合比。通过测试免烧砖的抗压强度和利用扫描电镜、X射线衍射分析(XRD)研究了免烧砖性能与强度形成机理。最佳 成型压力为25MPa,原料配比为:酸浸锰渣35%、河砂45%、水泥13%、生石灰7%,水固比0.3。 关键词:酸浸锰渣;免烧砖;最佳配合比;抗压;正交法 中图分类号:TU522.1+9 文献标识码:A 文章编号:1005-8249(2013)06-0042-04 Abstract :The acid leaching manganese residue non-burnt is developed by using electrolytic manganese residue-lime-cement as the mainmaterial ,added with certain quantities of aggregates-river sand and moulded by press Orthogonal experimental method is used to determine the op - timal ratio of material .The factors which are affecting the strength of product are analyzed ,such as plastic sand ratio and molding pressure .By tes - ting the pressive strength of it ,doing XRD and Scanning Electron Microscopy (SEM ),it showed the mechanism .The optimal molding pressureis 25 MPa ,The optimum positions of raw materials have been remended as the following :...
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