ANALYSIS OF AVAILABILITY AND UTILIZATION OF DRAGLINE FOR ENHANCEMENT OF PRODUCTIVITY IN SURFACE MINES – A CASE STUDY

World Mining Congress
Due to operational advantage of dragline in simultaneous excavation and back-filling, the
equipment has gained vast importance in open-pit mining. Besides, absence of auxiliary haulage units and
a myriad of other benefits are also credited in favor of excavation of muck piles by the draglines. However,
the aspects of production, productivity and economics are of utmost significance in dragline operation and
planning. In this light, the present paper is an endeavor to analyze availability and utilization of dragline
operations. The paper presents a good amount of data for 4-draglines operating in one of the major
opencast projects in India. The study reveals the trends of availability and utilization of these draglines
during last 11-years. Furthermore, the study also highlights the salient reasons for loss of available hours
and for idling of the draglines. Some startling information and facts have been illustrated in form of graphs
and pie charts.
Keywords: Draglines; dragline; availability; Utilization; Production; Productivity; Maintenance; Data;
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