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分析了在不同采矿技术条件下开采铁矿床的主要技术经济指标和胶结充填成本经济核算。为了提高用胶结充填工艺开采铁矿石的经济效益,对比了降低充填费用的技术方案。根据研究及其应用结果,提出了依赖增加胶凝料(粒化炉渣)磨细度和用电磁法活化胶结充填料减少胶凝料用量的建议,以及考虑到矿房参数和充填时间确定胶结充填料胶凝料含量的建议。还建议用从上盘或下盘开挖的围岩作第二步骤回采矿房充填料。确定了在第二步骤回采矿房周围开挖岩石的经济合理性。为了降低设计充填料制备系统时的折旧费,建议采用考虑到矿山生产能力的充填料制备系统配置和施工的分段模拟原则。
The main technical and economic indexes and cementation and filling costs of iron ore deposits mining under different mining technology conditions are analyzed. In order to improve the economic benefit of mining iron ore by cementation and filling, the technical scheme of reducing filling costs is compared. Based on the research results and the application results, the suggestion of increasing the fineness of the cementitious material (granulation slag) and reducing the amount of cementitious material by magnetizing the cementing filler is proposed, and the cementing filling Proposed cementitious material content. It is also recommended to use the surrounding rock excavated from the upper deck or lower deck as a second step to recover the charge of the mining house. The economic rationale for rock excavation around the mining house in the second step was identified. In order to reduce the depreciation expense when designing the filling material preparation system, it is recommended to adopt the staged simulation principle of the filling material preparation system configuration and construction considering the mine production capacity.