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Showing: 1 to 10 of 5090 matches for "harder"  Page   1   2   3   4   5   6   7   8   9  next TITLE An Evaluation of Blast Performance at the Kidston Gold Mine  SUMMARY ... Blasting problems have been experienced mining phase in these harder rocks. ... used to increase the explosives energy distribution in the harder rock types. ... AUTHOR Paine G PUBLISHED 1986 TITLE Application of Fixed-Drum Continuous Miners to a Variety of Underground Mining Conditions  SUMMARY ... Ohio equipment for extracting some of the harder non-coal materials was to be expected in the quest for greater productivity. The ... PUBLISHED 1978 TITLE Tin Exploration in Indonesia - Problems and Solution  SUMMARY ... For current challenges, the discovery of tin becomes harder as the more obvious geological targets are exhausted and topographical conditions become more ... AUTHOR Umar N PUBLISHED 1996 TITLE Heavy Medium Cyclone Plants- The Choice Between a DynaWhirlpool Pump Fed of Gravoity Fed Cyclone System  SUMMARY ... feed rates of 1000 tph were possible with the harder, lower grade ores feed rate was commonly restricted to about 600 to 700 tph with the higher grade material ... AUTHOR Carter LC PUBLISHED 1987 TITLE Possibility of Hard Rock Excavation by Boom-Type Tunnelling Machines  SUMMARY ... But there exist various difficulties in excavation of harder rocks by roadheaders. ... The inflection point is shifted to the harder rock side in this case. ... AUTHOR Tokairin Y ; Ishikawa K ; Kikuchi T PUBLISHED 1987 TITLE Rapid Reconnaissance Trench Sampling for the Exploration Industry  SUMMARY ... (a) A boom and chain-like a chain saw-for softer condi- tions which will achieve greater depth at a cost of higher maintenance in harder conditions-I50 mm (6 ... PUBLISHED 1988 TITLE The Rare Earths ? Introduction  SUMMARY ... 150.43 Pale Gray Hardness Harder than Oe I·rearly as soft as lead. Harder than Nd Harder than Zn Hard as steel Specific 6.15 6.9 Melting Point, oe. 810 623 ... AUTHOR Peter, Alice V. PUBLISHED 1935 TITLE Strategic Development of the Stage 5 Pit at Kidston  SUMMARY ... Mill expansion study The comminution circuit at Kidston had been set up to crush and grind a combination of soft oxidised and harder fresh ores at an average ... PUBLISHED 1994 TITLE Mechanics of Rock/Tool Interaction in Disc Rock Cutting  SUMMARY ... strong and abrasive rock. This wear problem could be reduced if the cutter was made from a harder material. Unfortunately as material ... AUTHOR H Gurgenci ; M Hood ; W J T Daniel ; X S L PUBLISHED 1998 TITLE Better Fragmentation Through Team Work At Dos Pobres Mine Safford, AZ  SUMMARY ... As the mine depth increased, the proper fragmentation size became harder to achieve due to less weathering and different rock types. ... AUTHOR Brandt, D. PUBLISHED 2011 Showing: 1 to 10 of 5090 matches for "harder"  Page   1   2   3   4   5   6   7   8   9  next Search Again