COST, ENERGY and ENVIRONMENTAL CONCERNS emphasize need to eliminate quarry haul trucks, haul roads and ramps

Shovels and trucks (or wheel loaders) have found a place in quarries as an interfacing connection between face and primary crushing plant. Trucks require haul roads and ramps in order to reach feed hoppers of primary crushing plants. As mining progresses haul distances become longer requiring more or larger capacity trucks compounding energy costs, competitive, environmental, safety and community relations problems.

By itself, mobilizing the crushing plant does not necessarily improve economic results. Ramps must be eliminated to enable the shortest possible haul distance between face and crushing plant to fully obtain economic advantage. Conveyors connecting to the overland conveyor system must be easily moved for blasting. Provision for removing fines or natural product may be desired requiring a bridge conveyor or separate surge piles.

Creative Engineering has prepared a 58 page Quarry Managers Note Book full of ideas detailing practical considerations on how to eliminate haul trucks, haul roads and ramps. Numerous photographs and drawings illustrate how others have done it. Examples using the computer program HAULPLAN demonstrate how to determine economic advantage using the included Haulplan Data Input Form. Typical costs are provided supporting use of included Guide To Quarry Haulage Feasibility Analysis. The Quarry Manager's Note Book and computer program available free.

For more information contact Creative Engineering (USA), 3513 Century Drive, Bakersfield CA 93306-1238. Tel.: 661 872 4763 Fax: 661 871 1798. www.beltconveyor.com