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Solid waste-based cementing material containing molten iron desulfurization tailings and preparation method of solid waste-based cementing material
The invention discloses a solid waste-based cementing material containing molten iron desulfurization tailings and a preparation method thereof, and belongs to the field of industrial solid waste resource utilization and building materials, and the solid waste-based cementing material comprises the following raw materials by dry basis mass percentage: 10%-40% of molten iron desulfurization tailings, 10%-30% of steel slag, 20%-50% of slag, and 5%-20% of industrial byproduct gypsum, the molten iron desulfurization tailings, the steel slag, the mineral slag and the industrial byproduct gypsum are ground independently or in a mixed manner until the specific surface area is 500m < 2 >/kg-600m < 2 >/kg. According to the method, multiple solid wastes are synergistically used for preparing the unfired solid waste-based cementing material, the high additional value of the molten iron desulfurization tailings is fully utilized, a large-scale utilization way is provided for the molten iron desulfurization tailings in the field of building materials, and the problems that the solid waste-based cementing material is slow in early hydration reaction rate, low in strength and long in coagulation time are solved by utilizing the characteristic of high alkalinity of the molten iron desulfurization tailings; while the resource utilization rate is increased, carbon dioxide emission is greatly reduced, and obvious economic and environmental benefits are achieved.
本发明公开了一种含铁水脱硫尾渣的固废基胶凝材料及其制备方法，为工业固体废弃物资源化利用和建筑材料领域，以干基质量百分数含量计，原料包括：10％～40％铁水脱硫尾渣、10％～30％钢渣、20％～50％矿渣、5％～20％工业副产石膏，其中，将铁水脱硫尾渣、钢渣、矿渣和工业副产石膏单独或混合粉磨至比表面积500m2/kg～600m2/kg。本发明将多种固废协同制备免烧固废基胶凝材料，充分利用铁水脱硫尾渣的高附加值，为其在建材领域提供大宗利用途径，且利用其碱性高的特点解决了固废基胶凝材料早期水化反应速率慢、强度低、凝结时间长的问题，在提高资源利用率的同时，大幅度减排二氧化碳，具有明显的经济和环境效益。
Solid waste-based cementing material containing molten iron desulfurization tailings and preparation method of solid waste-based cementing material
The invention discloses a solid waste-based cementing material containing molten iron desulfurization tailings and a preparation method thereof, and belongs to the field of industrial solid waste resource utilization and building materials, and the solid waste-based cementing material comprises the following raw materials by dry basis mass percentage: 10%-40% of molten iron desulfurization tailings, 10%-30% of steel slag, 20%-50% of slag, and 5%-20% of industrial byproduct gypsum, the molten iron desulfurization tailings, the steel slag, the mineral slag and the industrial byproduct gypsum are ground independently or in a mixed manner until the specific surface area is 500m < 2 >/kg-600m < 2 >/kg. According to the method, multiple solid wastes are synergistically used for preparing the unfired solid waste-based cementing material, the high additional value of the molten iron desulfurization tailings is fully utilized, a large-scale utilization way is provided for the molten iron desulfurization tailings in the field of building materials, and the problems that the solid waste-based cementing material is slow in early hydration reaction rate, low in strength and long in coagulation time are solved by utilizing the characteristic of high alkalinity of the molten iron desulfurization tailings; while the resource utilization rate is increased, carbon dioxide emission is greatly reduced, and obvious economic and environmental benefits are achieved.
本发明公开了一种含铁水脱硫尾渣的固废基胶凝材料及其制备方法，为工业固体废弃物资源化利用和建筑材料领域，以干基质量百分数含量计，原料包括：10％～40％铁水脱硫尾渣、10％～30％钢渣、20％～50％矿渣、5％～20％工业副产石膏，其中，将铁水脱硫尾渣、钢渣、矿渣和工业副产石膏单独或混合粉磨至比表面积500m2/kg～600m2/kg。本发明将多种固废协同制备免烧固废基胶凝材料，充分利用铁水脱硫尾渣的高附加值，为其在建材领域提供大宗利用途径，且利用其碱性高的特点解决了固废基胶凝材料早期水化反应速率慢、强度低、凝结时间长的问题，在提高资源利用率的同时，大幅度减排二氧化碳，具有明显的经济和环境效益。
Solid waste-based cementing material containing molten iron desulfurization tailings and preparation method of solid waste-based cementing material
一种含铁水脱硫尾渣的固废基胶凝材料及其制备方法
2022-03-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
| European Patent Office | 2024
| European Patent Office | 2023