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Production method of superfine steel slag powder
The invention discloses a production method of superfine steel slag powder. The method comprises the following steps: allowing steel slag fine powder with a specific surface area of 400-600 m<2>/kg toenter a primary sorter at first to sort out a qualified product with a specific surface area of 700 m<2>/kg or above; and allowing residual coarse powder to enter a ball mill for grinding. With the production process, the activity of the steel slag powder with the specific surface area of 700 m<2>/kg or above is close to or achieves the level of S95-grade slag powder. The steel slag powder with the specific surface area of 700 m<2>/kg or above can be compounded with S95-grade mineral powder according to a ratio of 1: 1 to produce modified mineral powder exceeding the S95 grade.
本发明公开了一种超细钢渣粉的生产方法，将比表面积在400‑600m2/kg之间的钢渣细粉，先进入第一分级机分选出比表面积为700 m2/kg以上的合格产品，剩余粗粉再进入球磨机粉磨，本发明采用上述生产工艺，该比表下的钢渣粉活性接近或达到S95级矿渣粉的水平。用此比表面积下的钢渣粉可以与S95级矿粉进行1：1复合，生产超过S95级的改性矿粉。
Production method of superfine steel slag powder
The invention discloses a production method of superfine steel slag powder. The method comprises the following steps: allowing steel slag fine powder with a specific surface area of 400-600 m<2>/kg toenter a primary sorter at first to sort out a qualified product with a specific surface area of 700 m<2>/kg or above; and allowing residual coarse powder to enter a ball mill for grinding. With the production process, the activity of the steel slag powder with the specific surface area of 700 m<2>/kg or above is close to or achieves the level of S95-grade slag powder. The steel slag powder with the specific surface area of 700 m<2>/kg or above can be compounded with S95-grade mineral powder according to a ratio of 1: 1 to produce modified mineral powder exceeding the S95 grade.
本发明公开了一种超细钢渣粉的生产方法，将比表面积在400‑600m2/kg之间的钢渣细粉，先进入第一分级机分选出比表面积为700 m2/kg以上的合格产品，剩余粗粉再进入球磨机粉磨，本发明采用上述生产工艺，该比表下的钢渣粉活性接近或达到S95级矿渣粉的水平。用此比表面积下的钢渣粉可以与S95级矿粉进行1：1复合，生产超过S95级的改性矿粉。
Production method of superfine steel slag powder
一种超细钢渣粉的生产方法
JIANG SHIZHEN (author) / ZHANG JINGJIE (author)
2020-12-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022