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A platform for research: civil engineering, architecture and urbanism
Industrial waste residue low-heat Portland cement and preparation method thereof
The invention discloses an industrial waste residue low-heat Portland cement. The specific surface area of the low-heat Portland cement is 300-350 m<2>/Kg; the low-heat Portland cement comprises the following components in percentage by mass: 1-5% of tricalcium silicate, 0.2-0.7% of insoluble substances, 0.5-3% of magnesium oxide, 0-3.5% of sulfur trioxide, 0-0.6% of an alkali and the balance being dicalcium silicate, and the sum of the mass percentages is 100%. The invention further discloses a preparation method of the industrial waste residue low-heat Portland cement. The preparation methodspecifically comprises the following steps: drying wet carbide slag produced in industry to prepare carbide slag dry powder; metering and conveying raw materials including carbide slag dry powder, steel slag, yellow gangue and waste silicon stone, feeding the raw materials into a raw material grinding system for grinding, and then feeding the raw materials into a homogenizing silo for storage, homogenizing and firing to obtain clinker; adding gypsum into the sintered clinker, uniformly mixing, and grinding the cement into powder to obtain the low-heat Portland cement.
本发明公开了一种工业废渣低热硅酸盐水泥，低热硅酸盐水泥比表面积为300‑350m/Kg，所述低热硅酸盐水泥按照质量百分比包括1‑5％的硅酸三钙、0.2‑0.7％的不溶物、0.5‑3％的氧化镁、0‑3.5％的三氧化硫、0‑0.6％碱，其余为硅酸二钙，以上质量百分比之和为100％。本发明还公开了一种工业废渣低热硅酸盐水泥的制备方法，具体包括将工业产生的湿电石渣经过烘干制成电石渣干粉；将原料电石渣干粉、钢渣、黄矸石、硅废石通过计量、输送，进入生料粉磨系统进行粉磨，然后进入均化库内储存、均化、烧成熟料；在烧成的熟料中外掺石膏混合均匀，再进行水泥磨粉，得到低热硅酸盐水泥。
Industrial waste residue low-heat Portland cement and preparation method thereof
The invention discloses an industrial waste residue low-heat Portland cement. The specific surface area of the low-heat Portland cement is 300-350 m<2>/Kg; the low-heat Portland cement comprises the following components in percentage by mass: 1-5% of tricalcium silicate, 0.2-0.7% of insoluble substances, 0.5-3% of magnesium oxide, 0-3.5% of sulfur trioxide, 0-0.6% of an alkali and the balance being dicalcium silicate, and the sum of the mass percentages is 100%. The invention further discloses a preparation method of the industrial waste residue low-heat Portland cement. The preparation methodspecifically comprises the following steps: drying wet carbide slag produced in industry to prepare carbide slag dry powder; metering and conveying raw materials including carbide slag dry powder, steel slag, yellow gangue and waste silicon stone, feeding the raw materials into a raw material grinding system for grinding, and then feeding the raw materials into a homogenizing silo for storage, homogenizing and firing to obtain clinker; adding gypsum into the sintered clinker, uniformly mixing, and grinding the cement into powder to obtain the low-heat Portland cement.
本发明公开了一种工业废渣低热硅酸盐水泥，低热硅酸盐水泥比表面积为300‑350m/Kg，所述低热硅酸盐水泥按照质量百分比包括1‑5％的硅酸三钙、0.2‑0.7％的不溶物、0.5‑3％的氧化镁、0‑3.5％的三氧化硫、0‑0.6％碱，其余为硅酸二钙，以上质量百分比之和为100％。本发明还公开了一种工业废渣低热硅酸盐水泥的制备方法，具体包括将工业产生的湿电石渣经过烘干制成电石渣干粉；将原料电石渣干粉、钢渣、黄矸石、硅废石通过计量、输送，进入生料粉磨系统进行粉磨，然后进入均化库内储存、均化、烧成熟料；在烧成的熟料中外掺石膏混合均匀，再进行水泥磨粉，得到低热硅酸盐水泥。
Industrial waste residue low-heat Portland cement and preparation method thereof
一种工业废渣低热硅酸盐水泥及制备方法
CHEN PENG (author) / MA SHAOHUA (author) / CAO HUIHUI (author) / DONG HENGHENG (author) / ZHANG XIAOJIAN (author) / YOU WENJUN (author)
2020-05-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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