Context-driven mean residual life estimation of mining machinery

Maintenance is crucial to ensure production/output and customer satisfaction in the mining sector. The cost of maintenance of mechanised and automated mining systems is very high, necessitating efforts to enhance the effectiveness of maintenance systems and organisation. For effective maintenance planning, it is important to have a good understanding of the reliability and availability characteristics of the systems. Determining the Mean Residual Life (MRL) of systems allows organisations to more effectively plan maintenance tasks. In this paper, we use a statistical approach to estimate MRL and consider a Weibull proportional hazard model (PHM) with time-independent covariates to model the hazard function so that the operating environment could be integrated into the reliability analysis. The paper explains our methods for calculating the conditional reliability function and computing the MRL as a function of the current conditions. The model is verified and validated using data from the hydraulic system of LHD equipment in a Swedish mine. The results are useful to estimate the remaining useful life of such systems; the method can be used for maintenance planning, helping to control unplanned stoppages of highly mechanised and automated systems.     

矿业权管理的计算机模型研究

矿业权管理信息系统通过降低业务处理所需各项费用,节省手工工作量,提高管理效率,改变了矿业部门和企业传统的矿业权管理模式.矿业权管理的计算机模型是建立矿业权管理信息系统的基础,它包括数据库模型和矿业权管理算法模型.本文通过分析矿业权的特性,提出了矿业权管理数据库模型;同时,本文还建立了矿业权管理的状态算法模型、有效性算法模型、成本算法模型、资源量算法模型等.这些模型为矿业权管理信息系统精确监控矿业权信息,动态管理矿业权状态提供了支持,在"武警黄金部队地质勘查信息系统"得到了很好的应用.     

采充动态平衡管理浅论

介绍了三山岛金矿在采场内通过提高采场分层生产能力,采用大中小采场相结合的方法来进行采充动态平衡的管理方法。     

谈综机采场的选择

介绍了选择综机采场时应注意的问题和主要工作     

Optimal extraction sequence modeling for open pit mining operation considering the dynamic cutoff grade

The cutoff grade problem is an important research challenge and vital optimization task in the yearly operational planning of open pit mines due to its combinatorial nature. Because of it's influenced by the economic parameters, the capacities of stages in the mining operation, mining sequence, and grade distribution of the deposit. Essentially, it asserts that the dynamic cutoff grade at any given period is a function of the ore availability and the needs of the mill at that period. Consequently, cutoff grades strategy and extraction sequence should be considered, simultaneously. Due to its goal, various attempts have been made to develop a computerized procedure for the extraction sequence of open pit mine. None of the resulting approaches appear to enjoy wide acceptance because of it's the numerous associated variables. A new model is proposed to overcome this shortcoming. This model solves the problem in the three steps: 1) the actual economic loss associated with each type of processing for each block, 2) the probabilities distribution and average grade for each type processing is computed from independent realization, and 3) each block with its expected economic loss is developed as a binary integer programming model. Using this model, the optimum extraction sequences in each period are identified based on the optimum processing decisions. A case study is presented to illustrate the applicability of the model developed. Results showed that the extraction sequences obtained using the suggested model will be realistic and practical. This model allows for the solution of very large problem in reasonable time with very high solution quality in terms of optimal net present value.     

现代露天开采技术装备综合动态跟踪标准化管理

现代露天开采技术装备综合动态跟踪标准化管理以保证提高露天开采的安全可靠性、生产作业量、管理效能、经济效益和土地复垦质量为目的。以科学、规范的技术培训提高人员素质为动力、专职划分和工单标准为基础、循序渐进、求真务实为操作规程统计分析、考核激励动态调整提升管理效能为目的建立运行机制,实现生产与管理集中统一的技术装备、综合动态跟踪标准化管理整体提升管理效能。     

煤矿机修厂企业管理中必须强化的一些意识问题

煤矿机修企业在转轨过程中 ,必须从 5个方面强化企业管理 ,以实现企业快速发展。     

大规模定制化采矿的全寿命周期管理方法探讨

建筑用石料矿山因采用露天开采方式,对环境的影响直观、明显,而受社会关注,近年来浙江省审时度势及时调整了矿产开发的思路,由环保与开发并重转变为环保优先条件下的开发.本文通过对基于大规模定制化采矿思路的露天开采建筑用石料矿全寿命周期管理方法的探讨,实现露天开采建筑用石料矿山开发企业、用户和社会公众多赢的局面,促进矿山企业转型升级,达到资源可持续利用促进经济社会可持续发展的目标.     

国外矿产资源勘查开发税费制度比较及借鉴

总结分析国外主要矿业税费种类,包括权利金制度、资源租金税、矿业权租金、耗竭补贴等,并与我国在税种、税收政策、政策制定等方面进行比较,提出以下几点改革建议:①改变资源税征收方式;②矿产资源国家所有,开采矿产资源须予以补偿;③建立资源耗竭补偿机制;④完善对节能、环保产业的税收优惠政策;⑤建立生态环境保护退税机制;⑥资源开采使用的不同阶段采取不同的税收优惠政策。     

Choice of the hard rock surface mining machinery in Russia

Based on the review of theoretical research, design experience and field experience gained in hard rock surface mining, the authors highlight the development trends in the extraction and loading machine building, and show the need to vitalize the national mining machine engineering.     

完善现行矿业权人勘查开采信息公示制度的建议

矿业权人勘查开采信息公示工作是矿产资源勘查开采监督管理方式的重大转变,优化信息公示制度对于提高矿产资源监管水平具有重要意义。本文通过分析全国信息公示工作进展情况,总结了信息公示工作中存在的问题,并提出对公示制度的修改意见。本文认为:目前信息公示工作中存在着部分矿业权人信息填报质量不高、填报指标与现行政策要求不一致、抽查范围限定不够明确、异常名录和严重违法名单管理要求不明确等问题。针对这些问题,提出以下建议:进一步明确信息公示工作职责分工,明确矿业权人信息填报要求,明确抽查要求,优化实地核查人员结构和核查要求,细化异常名录和严重违法名单管理,细化监督管理要求,修改完善公示信息指标等。     

厂矿企业地理信息动态管理系统的开发

详细阐述了厂矿企业地理信息动态管理系统信息数据库的建立、查询和信息报表的设计方法,提出了该信息系统软件二次开发应具备的基本功能,从而达到用户获取现势性全方位地理信息数据的目的。     

厂矿企业地理信息动态管理系统的开发

详细阐述了厂矿企业地理信息动态管理系统信息数据库的建立、查询和信息报表的设计方法,提出了该信息系统软件二次开发应具备的基本功能,从而达到用户获取现势性全方位地理信息数据的目的.     

设备诊断技术的发展及在矿山机械上的应用

全面阐述了设备诊断技术的发展、内容、方法及其在矿山机械上的应用。     

采煤机状态监测及寿命管理系统方案设计

本文分析了采煤机的结构组成及各部分常见故障形式,确定了系统监测参量的数量和类型。结合采煤机寿命管理的功能要求和机载监控系统的特点,制定了基于物联网的采煤机状态监测及寿命管理系统的总体实施方案,并确定了数据传输的通信方式和上位机开发的软件平台,为系统的建立和实施提供了理论依据。     

Information support of mineral mining and exploitation in the Khibiny mountains area

The paper deals with the creation and regular upgrading of the Khibiny Mountains ore-mining area model, including objects of geological environment, relief, open-cast and underground mining, industrial and social infrastructure. The authors show feasibility of creating such a model and indicate its potential users.     

薄煤层综采机械化装备配套的几个技术问题

薄煤层工作面综采机械化装备配套要科学合理 ,以使各设备的结构尺寸达到最优的配合状态。本文分析滚筒装煤、最大采煤高度、薄煤层输送机、薄煤层对采煤机的要求等技术问题     

改扩建矿井通风系统优化及动态管理模型创建

针对某大型复杂改扩建铁矿总风量不足、风流调控设施难以设置、受自然风压影响较大等问题,在对通风系统进行全面详细的调查、测定、分析基础上,从通风动力设备、通风网络、通风构筑物及通风管理等方面综合考虑,拟定了两个经济合理、技术可行、安全可靠的通风系统优化方案,并应用三维仿真通风软件对其进行模拟解算,经综合分析比较确定最佳优化方案。通过创建与之相应的智能在线动态管理模型,此模型能实现工作面风量自行诊断、量化自然风压对通风系统的影响、随通风系统的变化自动及时进行更新,为事先预防和事后决策提供可靠依据。应用结果表明,风量得到了有效、合理分配,矿井总风量由286.3 m3/s增加到429.7 m3/s,满足了安全生产的需求。