某铁矿2550kta地下开采方案设计

武汉科技大学本科华业设计摘要本次设计为对某铁矿进行-500m水平以上的地下开采方案，设计要求的年产量为2550kt/。通过完成本次设计提高学生综合应用采矿工程专业理论知识、专业基本技能来解决矿山实际问题的能力，使学生具备较强的设计能力、沟通能力和团队协作精神。设计的对象为为061号勘探线，-500m以上的矿体。设计开采的矿体总体走向为292°，倾向为206°，倾角为30-60°，平均厚度约50m,矿区构造复杂，金属矿物主要是磁铁矿(Fe3O4),其次为黄铁矿(FeS2)。本次设计的方法主要结合图纸资料和地质报告，梳理矿床赋存特征，采用系统优化方法，完成矿山总平面方案优化、开拓方案选择、采矿方法选择、矿山设备选型等工作，基于经济学原理，对矿山开采的经济效果进行评价。本设计完成了某矿山地质特征研究、矿山生产能力校核、矿山开拓方案设计、矿山机械设备选型、矿山采矿方法设计、矿山通风排水方式、矿山开采计划安排、矿山的总平面布置、辅助设施设计、矿山环境保护和矿山安全、概算和技术分析等内容。其中以开拓方案设计、采矿方法设计和机械设备选型为主。本次设计矿山选择的开拓方式为下盘竖井联合斜坡道开拓，主井用于提升矿石，副井用于提升人员设备兼作进风井，矿体两端设有东西风井用于回风，采矿方法为无底柱分段崩落法，井下排水方式为井底集中排水，中央水泵房、水仓设置在开采最低水平-500m阶段，各阶段地下水经由泄水井排入水仓后，由水泵泵送至地表排出：设计矿区采用两翼对角式通风方式，新鲜风流由副井流入，经各阶段工作面洗刷各水平后，由上一阶段回风巷道流至风井排出地表：井下运输采用有轨、无轨联合运输，阶段运输采用电机车牵引矿车的方式运输，采场装矿采用铲运机出矿：计算矿山技术经济及经济概算，预计项目总投资81869.34万元，正常生产年年均利润总额45614.03万元/，正常生产年投资利润率55.71%，投资利税率71.83%，财务内部收益率15.48%，静态投资回收期9.94年（含建设期5年），动态投资回收期16.50年（含建设期5年），盈亏平衡点为30.00%，该方案技术上可行，经济上合理。关键词：金属矿山：地下开采:开拓方案：无底柱分段崩落法武汉科技大学本科华业设计AbstractThis design is an underground mining scheme at the level of-500 m to 0 m for an ironore,requiring the annual output of 2550 kt a.Through the completion of this design,students'ability to comprehensively apply the theoretical knowledge and basic skills ofmining engineering to solve practical problems in the mine,so that students can have strongdesign ability,communication ability and team spirit.The design object is the exploration line 0-61,the ore body above-500m.The overalltrend of the designed ore body is 292,the tendency is 206,the inclination is 30~60,and theaverage thickness is about 50m.The mining structure is complex,and the metal minerals aremainly magnetite(Fe304),followed by pyrite(FeS2).The design method mainly combines thedrawing data and geological reports,sorts out the occurrence characteristics of the deposit,adopts the system optimization method to complete the mine general plane plan optimization,development plan selection,mining method selection,mining equipment selection and otherwork,etc.,based on the economic principles.This design has completed a mine geological characteristics research,mine productioncapacity check,mine development scheme design,mining equipment selection,miningmethod design,mine ventilation and drainage mode,mining plan arrangement,general layoutof mine,auxiliary facilities design,mine environmental protection and mine safety,budgetestimate and technical analysis,etc.Among them,the development scheme design,miningmethod design and mechanical equipment selection are mainly used.The development method selected in this design mine is the development of the lowerplate shaft joint ramp,Main well is used for lifting the ore,Auxiliary shaft is used to upgradepersonnel and equipment as an incoming air shaft,There are east and west air shaft at bothends of the ore body for return air,The mining method is no less column section collapsemethod,The underground drainage mode is the centralized drainage at the bottom of the well,The central water pump room and water bin are set at the minimum minin