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Method for preparing novel green mineral admixture from by-products of iron tailings and application of novel green mineral admixture
The invention belongs to the technical field of solid waste utilization, and particularly discloses a method for preparing a novel green mineral admixture from iron tailing byproducts and application, and the method specifically comprises the following steps: (1) preparing iron tailing coarse powder; (2) preparing an activating grinding aid; (3) grinding: feeding the iron tailing coarse powder and an activated grinding aid into grinding equipment together for grinding, feeding hot flue gas at the temperature of 200-350 DEG C into the grinding equipment, and grinding the mixed material until the specific surface area is 450-750 g/m < 2 > to obtain fine powder; (4) selecting powder and collecting to obtain iron tailing micro powder; and (5) blending the iron tailing micro powder obtained in the step (4) to obtain the novel green mineral admixture. The novel green mineral admixture with the iron tailing micro powder as the base material is applied to modern commercial concrete on a large scale, the manufacturing cost of the concrete can be effectively reduced, the concrete can effectively adapt to the working performance and the application scene of the concrete, and sustainable development of circular economy of mineral resources is promoted.
本发明属于固废利用技术领域，具体公开了一种铁尾矿副产物制备新型绿色矿物掺和料的方法和应用，具体包括以下步骤，(1)制备铁尾矿粗粉；(2)制备活化助磨剂；(3)粉磨，将铁尾矿粗粉与活化助磨剂一同送入粉磨设备中粉磨，并往粉磨设备中送入温度为200‑350℃的热烟气，将混合物料粉磨至比表面积为450‑750g/m2，得到细微粉；(4)选粉收集得到铁尾矿微粉；(5)将步骤(4)得到的铁尾矿微粉进行配料掺和，得到所述新型绿色矿物掺和料。本发明以铁尾矿微粉为基材的新型绿色矿物掺和料大规模应用现代商品混凝土，可有效降低混凝土的制作成本，且能有效适应混凝土的工作性能及应用场景，促进矿产资源循环经济可持续发展。
Method for preparing novel green mineral admixture from by-products of iron tailings and application of novel green mineral admixture
The invention belongs to the technical field of solid waste utilization, and particularly discloses a method for preparing a novel green mineral admixture from iron tailing byproducts and application, and the method specifically comprises the following steps: (1) preparing iron tailing coarse powder; (2) preparing an activating grinding aid; (3) grinding: feeding the iron tailing coarse powder and an activated grinding aid into grinding equipment together for grinding, feeding hot flue gas at the temperature of 200-350 DEG C into the grinding equipment, and grinding the mixed material until the specific surface area is 450-750 g/m < 2 > to obtain fine powder; (4) selecting powder and collecting to obtain iron tailing micro powder; and (5) blending the iron tailing micro powder obtained in the step (4) to obtain the novel green mineral admixture. The novel green mineral admixture with the iron tailing micro powder as the base material is applied to modern commercial concrete on a large scale, the manufacturing cost of the concrete can be effectively reduced, the concrete can effectively adapt to the working performance and the application scene of the concrete, and sustainable development of circular economy of mineral resources is promoted.
本发明属于固废利用技术领域，具体公开了一种铁尾矿副产物制备新型绿色矿物掺和料的方法和应用，具体包括以下步骤，(1)制备铁尾矿粗粉；(2)制备活化助磨剂；(3)粉磨，将铁尾矿粗粉与活化助磨剂一同送入粉磨设备中粉磨，并往粉磨设备中送入温度为200‑350℃的热烟气，将混合物料粉磨至比表面积为450‑750g/m2，得到细微粉；(4)选粉收集得到铁尾矿微粉；(5)将步骤(4)得到的铁尾矿微粉进行配料掺和，得到所述新型绿色矿物掺和料。本发明以铁尾矿微粉为基材的新型绿色矿物掺和料大规模应用现代商品混凝土，可有效降低混凝土的制作成本，且能有效适应混凝土的工作性能及应用场景，促进矿产资源循环经济可持续发展。
Method for preparing novel green mineral admixture from by-products of iron tailings and application of novel green mineral admixture
一种铁尾矿副产物制备新型绿色矿物掺和料的方法和应用
WANG LINGRUI (author) / XIE LUNQIANG (author) / CHEN SHUISHENG (author)
2023-05-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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