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A platform for research: civil engineering, architecture and urbanism
Cement prepared from tungsten tailings and preparation method thereof
The invention discloses cement prepared from tungsten tailings and a preparation method of the cement, the cement comprises the following components in percentage by weight: 30-50% of cement clinker, 40-60% of modified tungsten tailings, 6% of limestone and 4% of gypsum, and the modified tungsten tailings are powder formed by mixing and grinding tungsten tailings and industrial slag after adding an exciting agent. The preparation method comprises the following steps: S1, crushing and grinding limestone, and controlling the specific surface area to obtain a material I; s2, crushing cement clinker, adding gypsum, grinding, and controlling the specific surface area to obtain a material II; s3, tungsten tailings and industrial slag are dried and crushed, an exciting agent is added, mixing and grinding are conducted after 1 h, the specific surface area is controlled, and modified tungsten tailings are obtained; and S4, uniformly mixing the material I, the material II and the modified tungsten tailings to prepare the cement prepared from the tungsten tailings. The prepared cement is low-clinker prepared cement with various performance indexes meeting national standards, the clinker consumption can be reduced, carbon dioxide emission can be reduced, tungsten tailings can be recycled, and resource waste can be reduced.
本发明公开了一种钨尾矿配制水泥及其制备方法，所述水泥组分及重量百分比为：水泥熟料30～50%，改性钨尾矿40～60%，石灰石6%以及石膏4%，改性钨尾矿为钨尾矿和工业矿渣在加入激发剂后混合粉磨成的粉末。其制备步骤为：S1、将石灰石破碎、粉磨，控制比表面积，得到物料Ⅰ；S2、将水泥熟料破碎，加石膏粉磨，控制比表面积，得到物料Ⅱ；S3、将钨尾矿和工业矿渣烘干、破碎，加入激发剂，1h后混合粉磨，控制比表面积，得到改性钨尾矿；S4、将物料Ⅰ、物料Ⅱ和改性钨尾矿混合均匀后，制得钨尾矿配制水泥。本发明制得的水泥为各项性能指标满足国家标准的低熟料配制水泥，能降低熟料用量，减少二氧化碳排放，还能回收利用钨尾矿，减少资源浪费。
Cement prepared from tungsten tailings and preparation method thereof
The invention discloses cement prepared from tungsten tailings and a preparation method of the cement, the cement comprises the following components in percentage by weight: 30-50% of cement clinker, 40-60% of modified tungsten tailings, 6% of limestone and 4% of gypsum, and the modified tungsten tailings are powder formed by mixing and grinding tungsten tailings and industrial slag after adding an exciting agent. The preparation method comprises the following steps: S1, crushing and grinding limestone, and controlling the specific surface area to obtain a material I; s2, crushing cement clinker, adding gypsum, grinding, and controlling the specific surface area to obtain a material II; s3, tungsten tailings and industrial slag are dried and crushed, an exciting agent is added, mixing and grinding are conducted after 1 h, the specific surface area is controlled, and modified tungsten tailings are obtained; and S4, uniformly mixing the material I, the material II and the modified tungsten tailings to prepare the cement prepared from the tungsten tailings. The prepared cement is low-clinker prepared cement with various performance indexes meeting national standards, the clinker consumption can be reduced, carbon dioxide emission can be reduced, tungsten tailings can be recycled, and resource waste can be reduced.
本发明公开了一种钨尾矿配制水泥及其制备方法，所述水泥组分及重量百分比为：水泥熟料30～50%，改性钨尾矿40～60%，石灰石6%以及石膏4%，改性钨尾矿为钨尾矿和工业矿渣在加入激发剂后混合粉磨成的粉末。其制备步骤为：S1、将石灰石破碎、粉磨，控制比表面积，得到物料Ⅰ；S2、将水泥熟料破碎，加石膏粉磨，控制比表面积，得到物料Ⅱ；S3、将钨尾矿和工业矿渣烘干、破碎，加入激发剂，1h后混合粉磨，控制比表面积，得到改性钨尾矿；S4、将物料Ⅰ、物料Ⅱ和改性钨尾矿混合均匀后，制得钨尾矿配制水泥。本发明制得的水泥为各项性能指标满足国家标准的低熟料配制水泥，能降低熟料用量，减少二氧化碳排放，还能回收利用钨尾矿，减少资源浪费。
Cement prepared from tungsten tailings and preparation method thereof
一种钨尾矿配制水泥及其制备方法
LUO QINGWEI (author) / ZHANG BIN (author) / LYU ANCHEN (author) / TAN XINYU (author) / LIN YONGQUAN (author)
2023-02-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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