Review of Electrical Parameters and Performance Evaluation of Shovels in Opencast mines

Abstract

Rope shovels are the most expensive piece of excavating equipment at the mine site and it’s operated safely, efficiently and economically. In order to achieve high production and productivity of heavy earth moving machine in opencast mines, it is necessary to have high %
availability and % utilization of equipment. The study of rope shovel productivity parameters, such as, swing angle, availability, seating position, cycle time, utilization, etc., in the field scale is essential.In this contest, calculation of operating cost & performance of rope shovel operation in various methods has been done. Each rope shovel that is considered for an AC Electrical upgrade is fully analyzed to determine the machines maximum potential productivity. The assessment includes review of current rope shovel productivity practices,installed electrical capability and additional mechanical enhancements that could be included, such as increased suspended load, which will allow us to take full advantage of the AC IGBT/AFE system.The AC IGBT/AFE System has a fully integrated onboard computer package that allows complete access to the drive application software and PLC software and chopper drive use in regenerative braking. It is called access direct which is discussed in this thesis. Surface mining like SINGARENI COLLIRIES LIMITED (SCCL) with higher coal production targets calls for systems to remove large volume of overburden in shortest possible time. Where the coal production is mined by opencast mining method.PLC technology is used to increase the production of mines.In this thesis these points are
discussed in detail.