以磷渣—磷尾矿为主要原料的保温板研制  

Preparation of Thermal Insulation Board Used Phosphorus Slag and Phosphate Tailings as the Main Raw Materials

作　　者：向兴[1] 薛俊[1,2] 曾维[1] 曹宏[1,2] 

机构地区：[1]武汉工程大学材料学院,湖北武汉430074 [2]国家磷资源开发利用工程技术研究中心,湖北武汉430074

出　　处：《中国非金属矿工业导刊》2013年第3期9-11,23,共4页China Non-Metallic Minerals industry

基　　金：国家磷资源开发利用工程技术研究中心开放基金

摘　　要：磷渣和磷尾矿都是工业废弃物,它们的堆放不仅占用土地而且对环境构成潜在危害。通过研究磷渣与生石灰的比,水灰比,磷尾矿掺量,水泥用量等得到制备保温板的最佳配比:膨胀珍珠岩10%、磷尾矿60%、水泥3%、磷渣∶生石灰(质量比)=4∶1、水灰比0.24。按此配方配料,成型后经174.5℃、8h蒸压养护所制得的保温板,其容重为1.49g/cm3、抗折强度3.56MPa、抗压强度12.5MPa、导热系数0.143W/(m.K),超过了国标规定的指标。Abstraet： Both phosphorus slag and phosphate tailings are industrial wastes, which not only occupy the land but also have the potential harm to the environment. In this paper, by research the ratio of phosphorus slag to quicklime, the percentage of water, phosphate tailings and cement, concluded that at the 174.5℃, 8 hours for autoclave curing, the expanded perlite is 10%, phosphorus tailing for 60%, cement for 3%, phosphorus slag to lime is 4：1, the percentage of water is 0.24, the board＇ apparent density is 1.49g/ cm3, flexural strength is 3.56MPa, the compressive strength is 12.5MPa, thermal conductivity coefficient is 0.143W/（m. K）, which is up to the chinese standard. Key words： phosphorus slag; phosphate tailings; quicklime; thermal insulation

关 键 词：磷渣 磷尾矿 生石灰 保温板 

分 类 号：TD926.4[矿业工程—选矿] P619.213[天文地球—矿床学]