New is a relative term, and when used with reference to a concept as old as shaft kilns can be applied to a number of
The never ending search for lower unit costs led Pima Mining Company’s management to study various alternatives shortly after Expansion III was completed. It soon
The purpose of this article is to present design information and operating data on a pilot gas scrubber which is believed to be a new
Table of ContentsSite PreparationLoadingHaulageField Support and ServiceMaintenance Principal factors influencing equipment selection can be grouped into five basic categories. Tonnage Requirements, Ore and Waste, Topography and Property
The transportation of mine products incurs a cost which can have a significant bearing on the competitive position of the product. This statement not only holds
Table of ContentsTest EquipmentMiller NumberCalculations The development of a new means of measuring the relative abrasivity of a slurry came about by necessity in 1967
Table of ContentsTypes of MineralisationSelective MiningChoice of Process ParametersDescription of Commercial PlantProcess DataStart-Up ProblemsSoot HandlingMetallurgical Balance The copper-silver-mercury orebody of Gortdrum Mines (Ireland) Limited is
Table of ContentsTechnical principleMechanical coupling problemsThe 6800 HP mill drive at Rohrdorf, West-Germany The first motors of this type were built to drive ball mills
First, the hydraulic excavator enjoys tooth forces of the shovel because the dipper is attached to the machine with a dipperstick and boom, and can
Gypsum is the crystalline chemical compound CaSO4·2H2O. A close chemical relation – and frequently occurring with Gypsum – is Anhydrite which is CaSO4. Gypsun has