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阐述了利用双GPS卫星定位、双射频通讯及有源电子标签等技术来解决露天矿重型卡车、辅助车辆和现场作业人员之间的安全防撞预警问题。同时还给出了如何利用双GPS定位技术来减少系统误差,以及提高电子标签区域定位精度的算法,从而为减少和杜绝露天矿运输卡车、辅助车辆与作业人员之间的事故发生起到了重要的作用。该项预警系统在神华准能公司黑岱沟露天煤矿得到了推广应用,收到了良好的效果。 相似文献
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美国矿业局出版发行的这本《露天矿运输道路设计手册》,论述了线路设计(纵断与平面)、路面结构材料、横向坡度、排水设施等有关运输道路设计事项。本《手册》除提到道路和车辆维修管理及跑车车辆制动失灵后的安全设施的标准之外,还涉_及到交通规则和提高车辆运行安全性的行车宽度的正确设计方法。出版本《手册》的目的在于为露天矿运输道路设计提供一本较完整的技术手册,以便在矿山道路设计中遵照该设计标准,提高运输安全性和运输效率。 相似文献
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基于RFID/GPRS的露天矿车辆运输计量系统 总被引:1,自引:0,他引:1
针对露天矿山车辆运输自动化的需求和露天矿地形复杂的特点,应用先进的无线射频识别(RFID)技术、通用无线分组传输(GPRS)技术设计实现了露天矿山车辆运输计量系统。该系统不仅能够自动计量卡车运载次数和电铲装载次数功能,而且能够与配矿计划相结合规范矿山车辆的运输,提高露天矿卡车和电铲的工作效率,保证为选厂提供稳定的矿石供给。目前该系统已经在洛钼集团三道庄露天矿投入使用,现场测试表明:该系统性能稳定,能满足矿山生产要求,大大提高了矿山的劳动生产率。 相似文献
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通过对近年来国内外深凹露天矿开采技术现状的分析,认为改革单一运输方式,发展联合运输,加大台阶高度,改进采掘工艺,将是今后深凹露天矿技术发的主要趋势,而大力开展深凹露天矿边坡及环境治理技术等研究工作,则是当前面临的一项重要课题。作者还就解决我国深凹露天开采工艺中所产生的技术问题提出了某些具体建议。 相似文献
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Abstract Transport and tramming operations on South African mines are an area of considerable accident risk. In the context of surface mining, 74 percent of such accidents were associated with ore transfer by haul truck and service vehicle operations. However, the extent to which haul road design and operation activities impact on the overall safety of transport operations in mining was previously unclear, as was the status of road design activities for the various types of mining encountered This paper presents some findings from die Safety in Mines Research Advisory Committee research project OTH308 which examined the role of haul road design in transportation accidents. The objective of research was to determine whether a relationship existed between haul road design, construction and maintenance practices and accidents. In the case of surface mines, the objective was addressed through an assessment of transportation accidents and incidents, together with an evaluation of formal haul road design activities and associated safety critical defects and accident potentials for the various classes of surface mines studied It was concluded that whilst the overall contribution to transportation accidents derived from inadequate road design alone was small, low tonnage surface mining operations exhibited higher accident frequency rates than the industry average. Furthermore, there was clear evidence to suggest that there was no formal recognition of road design and management in transportation management, especially in the case of smaller surface mining and quarrying operations. To improve awareness of the role of good design in reducing transportation accidents, a mine haul road safety audit system was developed. A mine haul road safety audit system is described and recommended as a means to attaining a reduction in transportation accidents through the structured recognition and assessment of haulage hazards and the application of optimally safe designs for mine haul roads. 相似文献
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ABSTRACT Haul roads are designed to bear dynamic truckloads generated during haulage. Current road design methods consider static truckloads, which are lower than dynamic loads. They are also unreliable for designing roads for ultra-large trucks. This paper introduces a methodology for designing roads using dynamic loads for any haul truck. A 3D rigid multi-body dynamic virtual model of CAT 797F was built, verified and validated in MSC.ADAMS to model truck tire dynamic forces generated during haulage. Maximum dynamic forces were 2.86 times static force at rated payload. Industrial useable models that capture truck dynamics are proposed to improve road structural design. 相似文献
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The Industrial Source Complex 3 (ISC3) model, created by the United States Environmental Protection Agency (USEPA), is the best available model for estimating the dispersion of particulate matter less than 10 microns in diameter (PM10) from surface mining operations; its use is required in applications for surface mining permits. However, it has been proven to over-predict actual PM10 dispersion concentrations by a factor of 2?–?5. A newly developed model focuses on estimating PM10 dispersion from haul trucks, since past research has shown that the majority (80?–?96%) of PM10 emissions from surface mining operations are from mobile sources. This model is a promising improvement over the ISC3 model. Modeling exercises using the new model on actual surface mine hauling operations demonstrated a 77% improvement over the ISC3 model. 相似文献
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S. Vujic I. Miljanovic S. Boshevski K. Kasas A. Milutinovic N. Gojkovic M. J. Pejovic B. Dimitrijevic G. Gajic V. Cebashek 《Journal of Mining Science》2010,46(5):554-560
A theoretical concept and an illustrated practical example of the limited interval dynamic model, aimed for application in
optimizing the exploitation life of the mining machinery with shorter life cycle such as bulldozers, scrapers, haul trucks,
excavators with one working element and smaller capacity, etc., is presented in this paper. 相似文献
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在露天煤矿卡车运输成本管理中,燃油消耗指标的统计分析是日常管理十分关注的重要的经济指标。但是这一指标在露天矿企业的统计计算中有多种表达形式。从卡车运用工程角度分析,卡车运输过程是发动机发出功率产生燃油消耗的过程,也就是卡车通过消耗燃油输出了运输功t.km。超大型露天矿的矿用卡车的运力相当大,结合通用运输指标,笔者提出了矿用卡车的燃油消耗指标为kg(/100 t.km),并利用这样的指标数据统计整理了某超大型露天煤矿在2011年1月到6月的多型矿用卡车发生的数据样本,利用这批样本,做了正态分布的曲线拟合、卡方验证。运用统计性描述对这几型卡车的近期油耗指标的影响因素做了分析、评价。 相似文献
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矿山重型载重车辆是露天煤矿常用的运输工具,为更好地了解重负荷发动机冷却液性能对车辆现场使用的影响,选择2辆170D型重型卡车进行现场试验,每隔250 h从车辆液箱中抽取1 000~3 000 g的冷却液,测定其pH值、冰点、SCA值,以及特征离子的含量.通过分析上述数据的变化,探讨了重负荷发动机冷却液性能指标对现场使用的影响.结果表明:pH值为7~8.5时,适宜的储备碱度可以延长冷却液的使用寿命;冰点变化不大;影响SCA各成份消耗量的因素很多,须定期检验SCA的浓度,建议在运行6 000 h强制保养时换掉全部冷却液,并对冷却系统进行清洁和冲洗作业,以保证冷却液处于有效浓度,使系统处于良好状态,以延长柴油机使用寿命;通过特征离子的分析可以定量地了解发动机在运行过程中的腐蚀情况.另外,为了减少使用过程中的结垢现象,可根据水质条件进行配方调整,有条件的矿山可以增加水处理设备. 相似文献
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按照会计学统计原理结合鹤岗矿区铁路运输实际情况,按照确保国有资产保值增值,企业运营得以正常健康进行的计算原则,结合固定成本、变动成本、税金、利润分别计算后,合计租价的方法。电力机车、蒸汽机车和货车分别列项计算。即:租用车价格=成本+税金+利润。经过测算铁路运输部电力机车租价为120 450元/a。租用车价格的计算,对煤炭工业铁路经营管理作初步的探讨,为煤炭工业铁路经营管理提供参考坐标。 相似文献
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In focus is selection of load–haul–dump machines for hard mineral mines. The authors offer substantiation procedures for tuck-and-shovel systems of mining in difficult ground conditions. In terms of Kyrgaisky Sredni open-cut located in the Erunakovo coal district in Kuzbass, using the Lerchs–Grossman algorithm, the principles and sequence of forming efficient application domains for different specification trucks and shovels within a mine field are presented. 相似文献