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History and Development of Packaged Explosives Progressing from Nobel's Inventions to the Recent Introduction of EmulsionsBy Robert B. Hopler
"The story of packaged explosives begins with the use of black powder (also called gunpowder) in mining. Although discovered in the 13th century, it was not until 1627 that the first records of use in
Jan 1, 1991
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History and Evolution of Rubber Liner Systems For Grinding MillsBy Stuart F. McTavish
Mechanically suitable grinding mills became available to the mining industry in 1908. Since then, mill operators have been searching for the best material and design with which to line the mills. T
Jan 1, 1990
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History And Geology Of Ancient Gold-Fields In Turkey.By Leon Dominian
(Wilkes-Barre Meeting, June, 1911.) I. INTRODUCTION. THE lack of Aryan roots for the names of metals commonly known among the Aryan settlers of Asia Minor, as well as the later colonizers of Europe,
Nov 1, 1911
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History and Problems of the Wabana Submarine Iron MinesBy V. J. Southey
"This paper reviews the history of Wabana Mines from 1892 to 1966, inclusive, in order to clarify the essential factors involved in the achievement of maximum mining efficiency and in the search for a
Jan 1, 1969
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History of Emuent and Residue Treatment at Tm ProcesSing Corp. 1942 -1946By John Dasher
One of our War Plants processed Bolivian concentrates as low as 17% Sn by the Arnhem process (pressure leach with HCL) and sent the waste acid down a ditch to Galveston Bay where the chlorides, mostly
Jan 1, 1992
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HIT – a Portable Field Device for Rapid Testing at SiteBy T Kojovic
"The index A*b, determined from the Julius Kruttschnitt Mineral Research Centre (JKMRC) drop weight tester (DWT) results, has become well-known in the mining industry as a reliable measure of ore hard
Oct 10, 2016
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Hoist-Rope Stress Analysis and Preventative Maintenance for Multi-Rope Friction HoistsBy Humphrey Dean
"Canadian mining companies now operate numerous Koepe-type friction hoists in a variety of different shafts, most of which have a depth in excess of 3,000 feet. Rope performance reliability is an abso
Jan 1, 1970
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Homestake Mining Company's Carrier-Current Shaft Signaling SystemBy John F. Wiggert
DURING the early years of Homestake operations, shaft signaling from the cage tenders to the hoisting engineers was done by mechanical means. Small steel cables or jointed steel rods were suspended in
Jan 1, 1941
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Hope Bay Gold Project - NunavutA Joint Venture between Hope Bay Gold Corporation and Miramar Mining Corporation recently acquired the Hope Bay project in Nunavut, which represents the first discovery of a major new Archean greensto
May 1, 2001
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Horizontal airflow fine coal winnowing, L. Morgan, Q.P. Campbell, and M. le RouxBy L. Morgan, M. Le Roux, Q. P. Campbell
Dry coal processing is becoming increasingly favoured as a fine coal beneficiation technique. The decline in suitable good-quality coal, as well as the ongoing decrease in usable process water, makes
Jan 1, 2020
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Horizontal Curve Engineering Above and Below GroundBy Dr. -Ing. Rainer Alles
Introduction Belt conveyors usually run in a straight line. The correct alignment is a major criterion for reliable functioning and optimum running properties. Any misalignment of the conveyor, espe
Jan 1, 1993
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Horizontal drilling techniques in British coal minesBy P. P. Jenkins, T. G. Ball
Paper presented at the Drillex '90 conference held in London, 5 April 1990. Two drilling techniques are employed - guided longhole drilling and reverse circulation coring - for underground longhole ex
Jan 1, 1991
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Horizontal Single Belt Casting (Hsbc) Of Ca-Based, Bulk Metallic Glass (Bmg) StripsBy Roderick I. L. Guthrie, Donghui Li, Mihaiela Isac, Luis Calzado
The HSBC is an ideal process for the production of BMG strips. The purpose of the present work was to investigate the casting of Ca-based, bulk amorphous strips. The possibility of casting three Ca-ba
Jan 1, 2014
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Hot Blast Air Distribution Main Design Modifications For Improved PerformanceBy Kyle T. Chomyn
Multi-disciplinary engineering analysis and advanced modeling techniques were used to identify and develop low cost design modifications to improve a blast furnace hot blast air distribution main that
Aug 17, 2017
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Hot Blast System Development: Technology, Operations, Campaign ManagementBy Bart de Graaff, Victor van Straaten, Edo Engel
The hot blast system is key ancillary plant equipment with respect to safe and stable operations during a long blast furnace campaign. Hot blast stove designs have been optimized to such an extent tha
Oct 1, 2019
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Hot Corrosion Behaviour Of Pt-Alloys For Application In The Next Generation Of Gas TurbinesBy M. Stephton, L. A. Cornish, R. Süss, N. B. Maledi, J. H. Potgieter, L. Chown
In today?s gas turbines, the emphasis is on saving energy and reducing the amounts of pollutants emitted. This can be attained only by designing alloys with higher melting points and the capability to
Jan 1, 2006
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Hot Dip Tinning Operations at Port KemblaA commonplace, sometimes overlooked or taken for granted, article of everyday existence is the tin can. Produced from thin gauge low carbon steel, and commonly coated with a mere 60 millionths of an i
Jan 1, 1958
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Hot Ductility of NB-V Containing Micro alloyed Steel during SolidificationBy Yanhui Sun, Yanan Zeng, Kaike Cai
"Hot ductility of Nb-V-containing steel has been studied by theoretical calculation and thermal simulation experiment. Meanwhile, microsegregation and precipitates were analyzed. The results showed th
Jan 1, 2013
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Hot Rolling Of Steel – Generation 6.0By Karl Berger
Today we are talking about Industry 4.0, as the latest revolution of industrial processes and progress, considering that the steam engine (Industry 1.0), railways and cars, mass production in the 1920
Aug 16, 2017