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Method for preparing silicate cement siliceous correction raw material from iron tailings
The invention discloses a method for preparing a silicate cement siliceous correction raw material from iron tailings, which comprises the following steps: S1, feeding the iron tailings into a hydrocyclone, and grading to obtain coarse-grained tailings and fine-grained tailings; wherein the granularity of the fine-grained tailings is 0-X, X=0.0030-0.0038 mm, and the rest is the coarse-grained tailings; S2, performing three-stage wet magnetic separation operation on the coarse-grained tailings, and sequentially enhancing the three-stage magnetic separation intensity to obtain magnetic tailingsand non-magnetic tailings; S3, subjecting the non-magnetic tailings to flotation operation, and obtaining quartz tailings and quartz fine sand meeting the requirement, wherein the SiO2 content of thequartz fine sand is 82.54%-89.62%; according to the method, SiO2 in the iron tailings can be effectively recycled, and the quartz fine sand meeting the requirements of silicate cement siliceous correction raw materials is obtained.
本发明公开一种利用铁尾矿制备硅酸盐水泥硅质校正原料的方法，包括以下步骤：S1、将铁尾矿送入水力旋流器进行分级，得到粗粒级尾矿与细粒级尾矿；其中细粒级尾矿的粒度为0～X，X=0.0030～0.0038mm，其余的为粗粒级尾矿；S2、将粗粒级尾矿进行三段湿式磁选作业，三段磁选强度依次增强，得到磁性尾矿和非磁性尾矿；S3、对非磁性尾矿进行浮选作业，得到石英尾矿和符合要求的石英精砂，石英精砂的SiO2含量为82.54%～89.62%；该方法能够对铁尾矿中的SiO2进行有效回收，得到满足硅酸盐水泥硅质校正原料要求的石英精砂。
Method for preparing silicate cement siliceous correction raw material from iron tailings
The invention discloses a method for preparing a silicate cement siliceous correction raw material from iron tailings, which comprises the following steps: S1, feeding the iron tailings into a hydrocyclone, and grading to obtain coarse-grained tailings and fine-grained tailings; wherein the granularity of the fine-grained tailings is 0-X, X=0.0030-0.0038 mm, and the rest is the coarse-grained tailings; S2, performing three-stage wet magnetic separation operation on the coarse-grained tailings, and sequentially enhancing the three-stage magnetic separation intensity to obtain magnetic tailingsand non-magnetic tailings; S3, subjecting the non-magnetic tailings to flotation operation, and obtaining quartz tailings and quartz fine sand meeting the requirement, wherein the SiO2 content of thequartz fine sand is 82.54%-89.62%; according to the method, SiO2 in the iron tailings can be effectively recycled, and the quartz fine sand meeting the requirements of silicate cement siliceous correction raw materials is obtained.
本发明公开一种利用铁尾矿制备硅酸盐水泥硅质校正原料的方法，包括以下步骤：S1、将铁尾矿送入水力旋流器进行分级，得到粗粒级尾矿与细粒级尾矿；其中细粒级尾矿的粒度为0～X，X=0.0030～0.0038mm，其余的为粗粒级尾矿；S2、将粗粒级尾矿进行三段湿式磁选作业，三段磁选强度依次增强，得到磁性尾矿和非磁性尾矿；S3、对非磁性尾矿进行浮选作业，得到石英尾矿和符合要求的石英精砂，石英精砂的SiO2含量为82.54%～89.62%；该方法能够对铁尾矿中的SiO2进行有效回收，得到满足硅酸盐水泥硅质校正原料要求的石英精砂。
Method for preparing silicate cement siliceous correction raw material from iron tailings
一种利用铁尾矿制备硅酸盐水泥硅质校正原料的方法
BAO WEICHAO (author) / LU YU (author) / LIU BIN (author) / WU DAN (author) / GENG YI (author)
2021-03-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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