Pit & Quarry, October 2017
PHOTOS COURTESY OF ADRIAN DONNELLY Mobile stockpile conveyors can be used to complement a fleet of mobile crushers and screens tempting to bring their overall cost per ton down For this reason quarries have turned to the use of mobile crushing and screening equipment much more frequently in the last few decades Having a mobile plant that follows the quarry face has become a more common sight in operations across the globe to the extent that its utilization is no longer questioned It is now a well proven operational model The transition from bringing the plant to the material rather than transporting material to the plant has obvious cost saving benefits but what about the material being processed Static conveyors relied upon to move hundreds of tons per hour and that have been the mainstay of many quarrying operations for decades now find themselves moving further away from the action To benefit from the efficiencies and cost savings resulting from the integration of conveyors to move or stockpile material operators have turned to mobile stockpile conveyors to complement their f leet of mobile crushers and screeners CONVEYOR STOCKPILING BENEFITS With short discharge conveyors generally found on most mobile screeners or crushers sites that traditionally employ wheel loaders to move or stockpile material tend to be constantly moving material from the screener or crusher that can only handle a small stockpile Material is moved from one stockpile to another larger stockpile and then onto loading the trucks Effectively quarries that employ this system handle finished products at least twice By introducing mobile conveyors into their processing line operators can now leave crushers and screens running moving finished product just once with the wheel loader straight to the delivery trucks Ultimately the introduction of conveyors results in the elimination of the double handling of material in many cases Therefore this cuts an operators cost per ton OTHER REWARDS Production improvement proves to be another advantage enjoyed by operations using conveyors to create By introducing mobile conveyors into their processing line operators can now leave crushers and screens running pitandquarry com October 2017 PIT QUARRY S15
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