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Novel tailing cementitious material for metal mine full-tailing filling
The invention discloses a novel tailing cementitious material for metal mine full-tailing filling. The cementitious material is prepared from, by weight, 40%-70% of industrial waste residues or slag or mineral powder, 10%-40% of sulphoaluminate or Portland cement or clinker, 5%-25% of gypsum or lime, 5%-25% of coal ash and 0.1%-15% of a novel complexing agent. The cementitious material has the advantages that the filling body is high in early strength, stable in later strength, small in material consumption and large in tailing backfill amount; because the early strength of the filling body ishigh, the stope mining and filling alternating time is short, the production capacity efficiency is improved, and the filling cost is low; in addition, the material is non-toxic and harmless, waste residue resources are fully utilized, the filling cost is low, and economic, social and environmental benefits are remarkable.
本发明公开了一种金属矿山全尾砂充填用新型尾砂胶凝料，其各组分的占比如下：工业废渣或矿渣或矿粉40％‑70％、硫铝酸盐或硅酸盐水泥或熟料10％‑40％、石膏或石灰5％‑25％、煤灰5％‑25％以及新型复合剂0.1％‑15％。本发明具有充填体早期强度高、后期强度稳定、材料用量少、尾砂回填多；由于充填体早期强度高，因此采场采充交替时间短，利于提高生产能力效率充填成本低；此外，材料无毒无害，充分利用废渣资源，充填成本低，经济、社会和环境效益显著。
Novel tailing cementitious material for metal mine full-tailing filling
The invention discloses a novel tailing cementitious material for metal mine full-tailing filling. The cementitious material is prepared from, by weight, 40%-70% of industrial waste residues or slag or mineral powder, 10%-40% of sulphoaluminate or Portland cement or clinker, 5%-25% of gypsum or lime, 5%-25% of coal ash and 0.1%-15% of a novel complexing agent. The cementitious material has the advantages that the filling body is high in early strength, stable in later strength, small in material consumption and large in tailing backfill amount; because the early strength of the filling body ishigh, the stope mining and filling alternating time is short, the production capacity efficiency is improved, and the filling cost is low; in addition, the material is non-toxic and harmless, waste residue resources are fully utilized, the filling cost is low, and economic, social and environmental benefits are remarkable.
本发明公开了一种金属矿山全尾砂充填用新型尾砂胶凝料，其各组分的占比如下：工业废渣或矿渣或矿粉40％‑70％、硫铝酸盐或硅酸盐水泥或熟料10％‑40％、石膏或石灰5％‑25％、煤灰5％‑25％以及新型复合剂0.1％‑15％。本发明具有充填体早期强度高、后期强度稳定、材料用量少、尾砂回填多；由于充填体早期强度高，因此采场采充交替时间短，利于提高生产能力效率充填成本低；此外，材料无毒无害，充分利用废渣资源，充填成本低，经济、社会和环境效益显著。
Novel tailing cementitious material for metal mine full-tailing filling
一种金属矿山全尾砂充填用新型尾砂胶凝料
LI QINGZHU (author)
2020-06-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Method for manufacturing mine filling material by curing copper tailing using iron tailing
| European Patent Office | 2015
| European Patent Office | 2024