某矿-400m以上矿体120kta地下开采方案设计

武汉科技大学本科毕业设计摘要本次设计为某铁矿120kt/a地下开采设计，设计的主要任务是为某铁矿设计合理的开拓系统和采矿方法，同时进行技术经济分析。本设计对象为+400m以上的I号矿体，该矿体分布在1号勘探线至3号勘探线间，矿体产状32875°~65°，矿体长度257m,真厚度6.32m,平均品位TF34.11%,平均倾角72°。矿体较连续，厚度与品位变化不大。本次设计的内容包括：地质资料研究，某铁矿120ktW的地下开采设计方案，设计出合理的采矿方法和开拓、排水、通风系统，并进行经济概算和技术分析等工作。通过设计，确定本矿采矿方法为上向进路充填采矿法，采用下盘竖井开拓，罐笼井提升，集中式排水，侧翼对角式通风。通过计算，总投资为8870.50万元，销售收入为53677.25万元，静态投资回收期为3.90a,动态投资回收期为4.12a,内部收益率为30.68%，验证该方案是技术上可行，经济上合理的。关键词：铁矿；地下开采：下盘竖井开拓：上向进路充填法武汉科技大学本科毕业设计AbstractThis design is a 120kt/a underground mining design for an iron ore mine,and the maintask of the design is to design a reasonable pioneering system and mining method for an ironore mine,and at the same time to carry out technical and economic analysis.This design mainlyfocuses on the mining scope is +400m above the I ore body,the ore body is distributed in theNo.1 exploration line to the No.3 exploration line,the ore body yield328°/75°~65°，the length of the ore body is 257m,the true thickness of 6.32m,the average grade ofTFe34.11%,the average inclination angle of 72 The ore body is more continuous,thethickness is stable and the grade does not change much.The content of this design includes:completing the design scheme of underground miningfor an iron ore mine of 120kt/a,studying the geological data,designing a reasonable miningmethod and development,drainage,ventilation system,and carrying out the work of economicestimation and technical analysis,etc.Through the design,the mining method of this mine isdetermined and the grade of TFe34.5%is determined.Through the design,it is determined that the mining method of this mine is the upwardapproach filling mining method,with the use of down-pan shaft development,cage shaft lifting,centralized drainage,and flank diagonal ventilation.Through calculation,the total investment is 88.7050 million yuan,the sales revenue is536.7725 million yuan,the static payback period is 3.90a,the dynamic payback period is 4.12a,and the internal rate of return is 30.68%,which verifies that the program is technically feasibleand economically reasonable.Key words:Iron Ore;Underground Mining:Lower ShaftDevelopment;Upward Approach Filling MethodⅡ武汉科技大学本科毕业设计目录1总论1.1地理交通位置1.2设计基础资料12.1设计任务及设计规模1.2.2设计依据21.2.3设计原则21.3建设条件21.3.1地质资源21.3.2交通运输1.4工程概况.1.4.1地质..31.4.2水文地质.1.4.3采矿31.4.4技术经济2技术经济2.1劳动组织及定员和劳动生产率2.1.1企业工作制度>2.1.2机构设置72.1.3定员编制2.1.4劳动生产率92.2资金及资金筹措92.2.1流动资金92.2.2项目总投资92.2.3资金筹措102.2.4资金使用计划102.3产品成本测算分析.102.3.1产品单位成本计算参数10武汉科技大学本科毕业设计2.3.2产品成本计算102.4企业经济效果计算102.4.1产品方案及产品产量102.4.2经济计算年限102.4.3销售收入112.4.4税金计算122.4.5损益计算132.4.6投资利润率及投资利税率142.4.7现金流量表计算142.5盈亏平衡分析142.6企业综合评价153地质153.1矿床区域地质153.1.1地层153.1.2构造153.1.3岩浆活动163.2矿体特征及围岩条件163.3矿石质量特征163.3.1矿石物质成分163.3.2矿石结构构造163.3.3矿石化学成分.163.4水文地质条件173.4.1水文地质资料及勘察程度评价173.4.2矿区水文地质173.4.3矿坑涌水量173.5矿石储量计算183.5.1储量计算方法183.5.2水平断面法计算矿石储量184矿山规模」20IV