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Method for preparing auxiliary cementing material and concrete product by using industrial kiln tail gas carbonized steel slag
The invention discloses a method for preparing an auxiliary cementing material and a concrete product by using industrial kiln tail gas carbonized steel slag, which comprises the following steps: crushing, deironing and screening original steel slag to obtain a steel slag coarse and fine aggregate mixture and steel slag fine powder; carbonizing the steel slag coarse and fine aggregate mixture to obtain carbonized coarse aggregate and carbonized fine aggregate; grinding the steel slag fine powder to obtain steel slag micro-powder, and making the steel slag micro-powder into a cake to obtain a steel slag cake; carrying out carbonization treatment on the steel slag cake, and then drying and grinding to obtain a steel slag-based auxiliary cementing material; and mixing the steel slag-based auxiliary cementing material, silicate cement clinker powder and gypsum powder to obtain the novel low-carbon cementing material. And mixing the carbonized coarse aggregate, the carbonized fine aggregate, a novel low-carbon cementing material and sand, performing pressure forming, and performing carbonization treatment to obtain the steel slag multi-stage carbonized product. According to the method, the carbonization rate and the carbonization strength are effectively improved through the multi-stage carbonization technology, and the situation that due to the fact that CO2 carbonization cannot penetrate into particles, carbonization is not uniform is avoided.
本发明公开了一种利用工业窑炉尾气碳化钢渣制备辅助胶凝材料及混凝土制品的方法，步骤如下：原态钢渣经破碎、除铁、筛分，得钢渣粗细骨料混合物、钢渣细粉；将钢渣粗细骨料混合物进行碳化，获得碳化粗骨料、碳化细骨料；将钢渣细粉进行粉磨，得到钢渣微粉，将钢渣微粉制饼，得到钢渣饼；对钢渣饼碳化处理，之后烘干、粉磨，得到钢渣基辅助胶凝材料；将钢渣基辅助胶凝材料、硅酸水泥熟料粉、石膏粉混合，获得新型低碳胶凝材料；将碳化粗骨料、碳化细骨料、新型低碳胶凝材料、砂子混合加压成型，碳化处理，得到钢渣多级碳化制品。本发明通过多级碳化技术有效提高了碳化率和碳化强度，避免了采用CO2碳化无法深入颗粒内部导致碳化不均匀情况发生。
Method for preparing auxiliary cementing material and concrete product by using industrial kiln tail gas carbonized steel slag
The invention discloses a method for preparing an auxiliary cementing material and a concrete product by using industrial kiln tail gas carbonized steel slag, which comprises the following steps: crushing, deironing and screening original steel slag to obtain a steel slag coarse and fine aggregate mixture and steel slag fine powder; carbonizing the steel slag coarse and fine aggregate mixture to obtain carbonized coarse aggregate and carbonized fine aggregate; grinding the steel slag fine powder to obtain steel slag micro-powder, and making the steel slag micro-powder into a cake to obtain a steel slag cake; carrying out carbonization treatment on the steel slag cake, and then drying and grinding to obtain a steel slag-based auxiliary cementing material; and mixing the steel slag-based auxiliary cementing material, silicate cement clinker powder and gypsum powder to obtain the novel low-carbon cementing material. And mixing the carbonized coarse aggregate, the carbonized fine aggregate, a novel low-carbon cementing material and sand, performing pressure forming, and performing carbonization treatment to obtain the steel slag multi-stage carbonized product. According to the method, the carbonization rate and the carbonization strength are effectively improved through the multi-stage carbonization technology, and the situation that due to the fact that CO2 carbonization cannot penetrate into particles, carbonization is not uniform is avoided.
本发明公开了一种利用工业窑炉尾气碳化钢渣制备辅助胶凝材料及混凝土制品的方法，步骤如下：原态钢渣经破碎、除铁、筛分，得钢渣粗细骨料混合物、钢渣细粉；将钢渣粗细骨料混合物进行碳化，获得碳化粗骨料、碳化细骨料；将钢渣细粉进行粉磨，得到钢渣微粉，将钢渣微粉制饼，得到钢渣饼；对钢渣饼碳化处理，之后烘干、粉磨，得到钢渣基辅助胶凝材料；将钢渣基辅助胶凝材料、硅酸水泥熟料粉、石膏粉混合，获得新型低碳胶凝材料；将碳化粗骨料、碳化细骨料、新型低碳胶凝材料、砂子混合加压成型，碳化处理，得到钢渣多级碳化制品。本发明通过多级碳化技术有效提高了碳化率和碳化强度，避免了采用CO2碳化无法深入颗粒内部导致碳化不均匀情况发生。
Method for preparing auxiliary cementing material and concrete product by using industrial kiln tail gas carbonized steel slag
一种利用工业窑炉尾气碳化钢渣制备辅助胶凝材料及混凝土制品的方法
HAN HUI (author) / ZHAO LIN (author) / PENG XUEPING (author) / CHEN CHANGHUA (author)
2023-10-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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