System of ore preparation in open cast mining

1986 ◽  
Vol 22 (3) ◽  
pp. 218-222
Author(s):  
Yu. N. Ermolin
Keyword(s):  
Open Cast Mining ◽  
Ore Preparation ◽  
Open Cast

scholarly journals Problems of Anthropogenic Influences upon the Landscape in North Bohemia

Geografie ◽  
1989 ◽  
Vol 94 (1) ◽  
pp. 19-30
Author(s):  
Galina Kruglová ◽  
Jan Vaněk
Keyword(s):  
Land Use ◽  
Coal Preparation ◽  
Anthropogenic Influences ◽  
Ecological Processes ◽  
Power Stations ◽  
The North ◽  
Open Cast Mining ◽  
Ecological Aspects ◽  
Ecological Problems ◽  
Open Cast

The paper treats of harmful influences of the industrial sprawl, of ecological processes and phenomena interfering with socio-economic functions of the North Bohemian landscape. Great attention has been paid to special ecological problems related to open-cast mining, brown-coal preparation, uranium-ore mining, development of power stations, chemistry, land other industrial branches. According to the degree of anthropogenic influences owing to complex multi-line land use and conforming with ecological aspects, three types of regions have defined in the North Bohemian region.

scholarly journals Calculation of Parameters and Design of the Movable Transfer Station with Vibrating Screen Feeder for the Conveyor System of Deep Queries

2018 ◽  
Vol 7 (2.23) ◽  
pp. 148
Author(s):  
Aleksander Sładkowski ◽  
Arkadiy Yudin ◽  
Anatoliy Komissarov ◽  
Yuliya Lagunova ◽  
Madinur Akhmetova ◽  
...  
Keyword(s):  
Oscillatory System ◽  
Mining Machine ◽  
Conveyor System ◽  
Vibrating Screen ◽  
Calculation Of Parameters ◽  
Open Cast Mining ◽  
Transfer Station ◽  
Continuous Technology ◽  
Open Cast ◽  
Vibrating Feeder

The paper considers a new design of the movable vibrating screen feeder KVG-1PS designed for the reception and transfer of rocks and ores in conveyor complexes of cyclic-and-continuous technology in open-cast mining. It contains the results of design analysis of the new mining machine. The paper represents the technique of establishing the main parameters and the calculation of the movable vibrating feeder on the basis of a cascade shock-absorbing system at the representation of the machine within a three-mass oscillatory system. 

scholarly journals Asthma and open cast mining: Authors' reply

BMJ ◽  
1992 ◽  
Vol 305 (6858) ◽  
pp. 888-889
Author(s):  
J M F Temple ◽  
A M Sykes
Keyword(s):  
Open Cast Mining ◽  
Open Cast

Risk assessment in open cast mining — An application of Yager’s methodology for ordinal multiobjective decisions based on fuzzy sets

2003 ◽  
Vol 20 (3) ◽  
pp. 311-319 ◽  
Author(s):  
Prabir Kumar Bandyopadhyay ◽  
Subash Chandra Roy ◽  
Satabdi N. Sen
Keyword(s):  
Risk Assessment ◽  
Fuzzy Sets ◽  
Open Cast Mining ◽  
Open Cast

scholarly journals Asthma and open cast mining.

BMJ ◽  
1992 ◽  
Vol 305 (6850) ◽  
pp. 396-397 ◽  
Author(s):  
J. M. Temple ◽  
A. M. Sykes
Keyword(s):  
Open Cast Mining ◽  
Open Cast

scholarly journals Excavations in the Acheulean Levels at the Earlier Stone Age Site of Canteen Koppie, Northern Province, South Africa

2012 ◽  
Vol 78 ◽  
pp. 51-71 ◽  
Author(s):  
John McNabb ◽  
Peter Beaumont
Keyword(s):  
South Africa ◽  
Middle Pleistocene ◽  
Stone Age ◽  
Considerable Time ◽  
Stratigraphic Sequence ◽  
Open Cast Mining ◽  
Core Technology ◽  
Open Cast

The fluvial gravels of the river Vaal in South Africa have long been known as a source for Earlier Stone Age (ESA) artefacts. Most were discovered through the open cast mining for diamonds that has left very littlein situfluvial sediment remaining today. The site of Canteen Koppie is an internationally famous location with a reputation for prolific Acheulean artefacts, especially handaxes and the enigmatic prepared core and Levallois-like technology known as Victoria West. Our understanding of this site, and most other Vaal locations, is almost solely based on highly selected artefact collections. Here, we report on the first controlled excavations ever to be conducted at Canteen Koppie. The deposits are likely to date to the Early and Middle Pleistocene, and our excavations sample the full depth of the stratigraphic sequence. The lower units, first identified in these excavations, add a considerable time depth to the Acheulean occupation of the site, making this the longest chrono-stratigraphic sequence in South Africa to our knowledge. Given the current international interest in the origins of Levallois/prepared core technology (PCT), its occurrence in Unit 2b Upper, and its presence alongside Victoria West technology in Unit 2a has significant implications for debates on the role of Victoria West in the origins of PCT. From the Canteen Koppie evidence, Levallois and Victoria West are clearly rooted in the Acheulean.

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