A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Portland slag cement clinker prepared from stone coal vanadium extraction tailings and preparation method
The invention discloses a Portland slag cement clinker prepared from stone coal vanadium extraction tailings and a preparation method thereof, and is characterized in that the preparation method comprises the following steps: mixing vanadium extraction tailings, calcium carbonate, clay and iron powder to prepare a mixture A; carrying out pressure forming on the mixture A to obtain a sample block, fully drying the sample block, and sintering; and cooling the sintered sample block, and grinding to obtain the Portland slag cement clinker. The cement clinker can directly consume a large amount of vanadium extraction tailings, non-carbonate calcareous materials in the vanadium extraction tailings are utilized, carbon dioxide emission in the skilled firing decomposition stage of the Portland cement clinker is reduced, the firing temperature is reduced, coal consumption is reduced, the quality of the Portland cement clinker is not affected, and carbon dioxide emission is greatly reduced.
本发明公开了一种利用石煤提钒尾矿制备矿渣硅酸盐水泥熟料及制备方法，其特征在于，所述制备方法包括以下步骤：将提钒尾矿渣、碳酸钙、粘土和铁粉进行混合制得混合物A；将混合物A压力成型为样块，将样块充分干燥后，烧成；将烧成的样块冷却、粉磨制得矿渣硅酸盐水泥熟料。该水泥熟料可以直接消耗大量提钒尾矿，利用提钒尾矿中等非碳酸盐钙质材料，减少硅酸盐水泥熟料熟练烧制分解阶段二氧化碳排放，降低烧成温度，减少煤炭消耗，且不影响硅酸盐水泥熟料质量，大幅降低二氧化排放。
Portland slag cement clinker prepared from stone coal vanadium extraction tailings and preparation method
The invention discloses a Portland slag cement clinker prepared from stone coal vanadium extraction tailings and a preparation method thereof, and is characterized in that the preparation method comprises the following steps: mixing vanadium extraction tailings, calcium carbonate, clay and iron powder to prepare a mixture A; carrying out pressure forming on the mixture A to obtain a sample block, fully drying the sample block, and sintering; and cooling the sintered sample block, and grinding to obtain the Portland slag cement clinker. The cement clinker can directly consume a large amount of vanadium extraction tailings, non-carbonate calcareous materials in the vanadium extraction tailings are utilized, carbon dioxide emission in the skilled firing decomposition stage of the Portland cement clinker is reduced, the firing temperature is reduced, coal consumption is reduced, the quality of the Portland cement clinker is not affected, and carbon dioxide emission is greatly reduced.
本发明公开了一种利用石煤提钒尾矿制备矿渣硅酸盐水泥熟料及制备方法，其特征在于，所述制备方法包括以下步骤：将提钒尾矿渣、碳酸钙、粘土和铁粉进行混合制得混合物A；将混合物A压力成型为样块，将样块充分干燥后，烧成；将烧成的样块冷却、粉磨制得矿渣硅酸盐水泥熟料。该水泥熟料可以直接消耗大量提钒尾矿，利用提钒尾矿中等非碳酸盐钙质材料，减少硅酸盐水泥熟料熟练烧制分解阶段二氧化碳排放，降低烧成温度，减少煤炭消耗，且不影响硅酸盐水泥熟料质量，大幅降低二氧化排放。
Portland slag cement clinker prepared from stone coal vanadium extraction tailings and preparation method
一种利用石煤提钒尾矿制备矿渣硅酸盐水泥熟料及制备方法
ZHU JUN (author) / BAO YANRU (author) / LIU JINGTIAN (author) / ZHANG XUAN (author) / WANG XUE (author) / LI XIAOPENG (author) / HAN MEI (author)
2023-01-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022
Preparation method for phosphorous slag Portland cement clinker
| European Patent Office | 2015
| European Patent Office | 2022
Preparation and characterization of Portland cement clinker from iron ore tailings
| British Library Online Contents | 2019
Ordinary Portland cement clinker preparation method using molybdenum tailings to replace clay
| European Patent Office | 2016