基于三维建模技术的某矽卡岩型铁矿供配矿技术研究

Research on Ore Supply and Distribution Technology of a Skarn Iron Ore Based on 3D Modeling Technology

借助现代化的科技手段提高供配矿效果一直是矿山技术人员攻关的重要课题。针对某矽卡岩型大水铁矿床复杂的水文、地质条件给生产带来的一系列难题,开展供配矿技术研究,通过建立三维配矿模型,分析研究了矿量质量分布规律,明确了矿房掌子面的出矿截止品位,制定了矿岩分溜井倒料、电机车分段投料、箕斗正常提料的现场供配矿的工序及流程,尽可能地在主溜井中扩大了矿岩分段比例,使矿岩分离最大化。同时,建立了供配矿预警调整机制,明确了发生出矿品位大幅波动后的应急处理方案。通过攻关,稳定了出矿矿石质量,提高了选矿回收率,降低了矿石贫化率,并分享了建模及实施过程中的注意事项,为矽卡岩型铁矿供配矿工作提供了借鉴。

Improving the effect of ore supply and distribution by means of modern scientific and tech nological means has always been an important task for mine technicians.In view of a series of difficulties brought by the complex hydrological and geological conditions of a skarn type with large water inflow iron ore deposit to production,the research on ore supply and distribution technology was carried out.Through the establishment of a three-dimensional ore distribution model,the distribution law of ore quantity and quality was analyzed and studied,the cut-off grade of ore extraction at the working face of the mine room was clarified,and the on-site ore supply and distribution process and process of ore and rock chute dump⁃ing,electric locomotive feeding in sections,and skip normal lifting were formulated,As far as possible,the ore rock segmentation proportion is expanded in the main pass to maximize the separation of ore rock.At the same time,the early warning and adjustment mechanism for ore supply and distribution was estab⁃lished,and the emergency treatment plan after a large fluctuation of ore drawing grade was defined.Through tackling key problems,the quality of ore extracted was stabilized,the recovery rate of beneficia⁃tion was improved,and the dilution rate of ore was reduced.The precautions in modeling and implementa⁃tion were shared,which provided a reference for the supply and distribution of skarn iron ore.