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Preparation method of cement active additive
The invention discloses a preparation method of a cement active additive, which is characterized by comprising the following preparation steps: (1) raw material preparation, (2) crushing, (3) preheating, (4) heat treatment, (5) cooling and (6) scattering. The cement active additive has the beneficial effects that the coal gangue containing the kaolinite phase structure is prepared into the cement active additive with a large number of metakaolinite structures and an amorphous silicon dioxide phase through the procedures of crushing, grinding, preheating, heat treatment and the like, the metakaolinite phase content of the additive is larger than or equal to 95%, the fineness is smaller than or equal to 300 meshes, the ignition loss is smaller than or equal to 1%, and the specific surface area is larger than or equal to 0.2 m < 2 >/g; the coal gangue-containing cement has the advantages of high cement activity, full utilization of the heat value of the coal gangue, no need of an external heat source in the production process, short firing time, low energy consumption in the production process, low manufacturing cost and high production efficiency.
本发明公开了一种水泥活性添加剂的制备方法，其特征在于，包括以下制备步骤：(1)原料准备、(2)破碎、(3)预热、(4)热处理、(5)冷却、(6)打散；本发明的有益效果：本发明利用含有高岭石相结构的煤矸石经破碎、粉磨、预热、热处理等工序制成具有大量偏高岭石结构和无定形二氧化硅相的水泥活性添加剂，该添加剂偏高岭石相含量≧95％、细度≦300目、烧失≦1％、比表面积≧0.2m2/g，并含有少量无定形二氧化硅，具有较高的水泥活性，充分利用煤矸石自身的热值，生产过程不需要外加热源，烧成时间短，生产工艺具有能耗低、制造成本低、生产效率高的优点。
Preparation method of cement active additive
The invention discloses a preparation method of a cement active additive, which is characterized by comprising the following preparation steps: (1) raw material preparation, (2) crushing, (3) preheating, (4) heat treatment, (5) cooling and (6) scattering. The cement active additive has the beneficial effects that the coal gangue containing the kaolinite phase structure is prepared into the cement active additive with a large number of metakaolinite structures and an amorphous silicon dioxide phase through the procedures of crushing, grinding, preheating, heat treatment and the like, the metakaolinite phase content of the additive is larger than or equal to 95%, the fineness is smaller than or equal to 300 meshes, the ignition loss is smaller than or equal to 1%, and the specific surface area is larger than or equal to 0.2 m < 2 >/g; the coal gangue-containing cement has the advantages of high cement activity, full utilization of the heat value of the coal gangue, no need of an external heat source in the production process, short firing time, low energy consumption in the production process, low manufacturing cost and high production efficiency.
本发明公开了一种水泥活性添加剂的制备方法，其特征在于，包括以下制备步骤：(1)原料准备、(2)破碎、(3)预热、(4)热处理、(5)冷却、(6)打散；本发明的有益效果：本发明利用含有高岭石相结构的煤矸石经破碎、粉磨、预热、热处理等工序制成具有大量偏高岭石结构和无定形二氧化硅相的水泥活性添加剂，该添加剂偏高岭石相含量≧95％、细度≦300目、烧失≦1％、比表面积≧0.2m2/g，并含有少量无定形二氧化硅，具有较高的水泥活性，充分利用煤矸石自身的热值，生产过程不需要外加热源，烧成时间短，生产工艺具有能耗低、制造成本低、生产效率高的优点。
Preparation method of cement active additive
一种水泥活性添加剂的制备方法
LYU BAOWEI (author) / XUE YOUXIANG (author) / PENG YI (author) / LI PENG (author) / REN RUXUE (author) / WANG CHAOFENG (author) / CHI GUOHENG (author) / XU XIAOTING (author) / ZHANG SHENGJIE (author) / FAN JIANCHENG (author)
2024-01-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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