岩石半固定破碎站半连续工艺在近水平露天矿中的应用研究

发布时间：2018-06-23 23:46

本文选题：露天矿 + 岩石半固定破碎站　；参考：《中国矿业大学》2017年硕士论文

【摘要】：论文综合运用露天采矿学原理、采矿系统工程、技术经济学和计算机技术等方法,通过调查研究、理论分析和现场工程实践,对近水平露天矿条件下的岩石半固定破碎站半连续系统能力确定、破碎站选型与布置优化和排土带式输送机布置标高调整方法,以及半连续系统经济参数计算比较展开深入研究。提出根据影响因素和可靠度分析计算系统能力两种方法、建立了带式输送机参数验算模型。对多台岩石半固定破碎站数量确定进行了详细研究,提出根据卡车卸载台位数量确定岩石半固定破碎站的数量的方法;建立岩石半固定破碎站在服务块段内最优位置的计算模型,并对岩石半固定破碎站的移设方式进行了梳理,重点对卡车沿径向和切向向岩石半固定破碎站卸载的两种方法进行了分析,并结合国内露天矿现场实际给出了国内露天矿岩石半固定破碎站移设时间和移设费用参考值。为了解决端帮带式输送机和排土工作面带式输送机存在标高差、搭接困难的问题提出排土带式输送机标高跳跃式降低法和临时措施方法。根据近水平露天矿岩石剥离半连续工艺的需要和岩石半固定破碎站的特点,对岩石半固定破碎站半连续经济参数进行了计算与比较,提出岩石半固定破碎站半连续应用时应将其经济参数与相同状态下的单斗-卡车工艺、外包经济参数进行计算、分析与比较,以确定半连续工艺的经济效果,并对上述三种工艺的经济参数计算建立了定量计算、比较模型。特别提出露天矿用自卸卡车的垂向反向运输问题,并对垂向反向运输时,露天矿运输成本的增加值进行量化计算,为露天矿提供更精确的运输路线、运输成本计算模型。论文还以岩石半固定破碎站半连续在黑岱沟露天煤矿的应用为例进行实例说明。
[Abstract]:In this paper, the principles of open-pit mining, mining system engineering, technical economics and computer technology are comprehensively used, and through investigation and research, theoretical analysis and field engineering practice, The capacity of semi-fixed rock crushing station, the selection and layout optimization of crushing station and the elevation adjustment method of belt conveyer are determined under the condition of near horizontal opencast mine. And the economic parameter calculation of semi-continuous system is studied deeply. According to the influence factors and reliability analysis and calculation system capacity two methods are put forward to establish the belt conveyor parameter checking calculation model. The determination of the number of semi-fixed rock crushing stations is studied in detail, and the method of determining the number of semi-fixed rock crushing stations based on the number of unloading stations of trucks is put forward. The calculation model of the optimal position of the rock semi-fixed crushing station in the service block section is established, and the moving mode of the semi-fixed rock crushing station is sorted out. Two methods of unloading the truck along radial and tangential direction towards the rock semi-fixed crushing station are analyzed, and the reference values of the moving time and cost of the semi-fixed rock crushing station in the domestic opencast mine are given according to the actual situation in the domestic open-pit mine. In order to solve the problem of the difference in height between the belt conveyor and the belt conveyor in the working face, the method of lowering the elevation of the belt conveyor and the method of temporary measures are put forward in order to solve the problem of difficulty in lapping. According to the requirement of rock stripping semi-continuous process in near-horizontal open-pit mine and the characteristics of rock semi-fixed crushing station, the semi-continuous economic parameters of rock semi-fixed crushing station are calculated and compared. It is put forward that the economic parameters of semi-fixed rock crushing station should be calculated, analyzed and compared with the single-bucket truck process in the same condition, and the economic effect of semi-continuous process can be determined by calculation, analysis and comparison. The quantitative calculation and comparison model are established for the calculation of the economic parameters of the three processes mentioned above. This paper puts forward the problem of vertical reverse transportation of dump truck in opencast mine, and quantifies the added value of transportation cost of open-pit mine, which provides a more accurate transportation route and transportation cost calculation model for open-pit mine. The application of semi-fixed rock crushing station in Heidaigou opencast coal mine is taken as an example.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD824

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