Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Iron tailing powder-based cementing material for mine full-tailing cemented filling as well as preparation method and application of iron tailing powder-based cementing material
The invention belongs to the technical field of underground filling of metal mines, and particularly relates to an iron tailing powder-based cementing material for full-tailing cemented filling of mines as well as a preparation method and application of the iron tailing powder-based cementing material. The geopolymer-based anti-cracking mortar is prepared from iron tailing ultrafine powder, mineral powder, sulphoaluminate clinker, Portland cement clinker, desulfurized gypsum and methyl cellulose ether. The iron tailing powder-based cementing material can completely replace ordinary Portland cement in full tailing filling and can achieve the effect superior to cement consolidation, so that the consumption of cementing materials such as cement is greatly reduced, the filling cost is reduced, the carbon emission is reduced, and the utilization rate of tailings is increased. The rheological property, the mechanical property and the durability of the full-tailing cemented filling material prepared from the iron tailing powder-based cementing material can meet the requirements of mine filling, and under the condition that no additive is added, the effect of expanding to contact a roof can be achieved by virtue of the characteristics of the full-tailing cemented filling material, so that the problem of shrinkage of the cement-based filling material is solved.
本发明属于金属矿山井下充填技术领域，具体涉及一种用于矿山全尾砂胶结充填的铁尾矿粉基胶凝材料及其制备方法和应用。该地聚物基防裂型砂浆由铁尾矿超细粉、矿粉、硫铝酸盐熟料、硅酸盐水泥熟料、脱硫石膏和甲基纤维素醚制成。该铁尾矿粉基胶凝材料可以在全尾砂充填中全部替代普通硅酸盐水泥并能够达到优于水泥固结的效果，从而大大减小了水泥等胶凝材料的消耗，降低了充填成本，减少了碳排放，并增加了尾矿利用率。以该铁尾矿粉基胶凝材料制成的全尾砂胶结充填材料的流变性能、力学性能和耐久性能都能够达到矿山充填的要求，且在不添加外加剂的情况下，依靠自身的特性就能够达到膨胀接顶的效果，解决了水泥基充填材料收缩的问题。
Iron tailing powder-based cementing material for mine full-tailing cemented filling as well as preparation method and application of iron tailing powder-based cementing material
The invention belongs to the technical field of underground filling of metal mines, and particularly relates to an iron tailing powder-based cementing material for full-tailing cemented filling of mines as well as a preparation method and application of the iron tailing powder-based cementing material. The geopolymer-based anti-cracking mortar is prepared from iron tailing ultrafine powder, mineral powder, sulphoaluminate clinker, Portland cement clinker, desulfurized gypsum and methyl cellulose ether. The iron tailing powder-based cementing material can completely replace ordinary Portland cement in full tailing filling and can achieve the effect superior to cement consolidation, so that the consumption of cementing materials such as cement is greatly reduced, the filling cost is reduced, the carbon emission is reduced, and the utilization rate of tailings is increased. The rheological property, the mechanical property and the durability of the full-tailing cemented filling material prepared from the iron tailing powder-based cementing material can meet the requirements of mine filling, and under the condition that no additive is added, the effect of expanding to contact a roof can be achieved by virtue of the characteristics of the full-tailing cemented filling material, so that the problem of shrinkage of the cement-based filling material is solved.
本发明属于金属矿山井下充填技术领域，具体涉及一种用于矿山全尾砂胶结充填的铁尾矿粉基胶凝材料及其制备方法和应用。该地聚物基防裂型砂浆由铁尾矿超细粉、矿粉、硫铝酸盐熟料、硅酸盐水泥熟料、脱硫石膏和甲基纤维素醚制成。该铁尾矿粉基胶凝材料可以在全尾砂充填中全部替代普通硅酸盐水泥并能够达到优于水泥固结的效果，从而大大减小了水泥等胶凝材料的消耗，降低了充填成本，减少了碳排放，并增加了尾矿利用率。以该铁尾矿粉基胶凝材料制成的全尾砂胶结充填材料的流变性能、力学性能和耐久性能都能够达到矿山充填的要求，且在不添加外加剂的情况下，依靠自身的特性就能够达到膨胀接顶的效果，解决了水泥基充填材料收缩的问题。
Iron tailing powder-based cementing material for mine full-tailing cemented filling as well as preparation method and application of iron tailing powder-based cementing material
一种用于矿山全尾砂胶结充填的铁尾矿粉基胶凝材料及其制备方法和应用
LIU JUANHONG (Autor:in) / AN SHUHAO (Autor:in) / LIU ZHAO (Autor:in)
09.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
Cementing powder special for full-tailing cemented filling and preparation method thereof
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2023
Activated low-silicon iron tailing powder and composite cementing material preparation method
| Europäisches Patentamt | 2023
High-strength tailing cementing material for filling phosphorite mine
| Europäisches Patentamt | 2022