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MODEL OF TEHNICO-TEHNOLOGICAL AND CONSTRUCTIVE PARAMETERS IN BOREHOLE MINING HYDROEXPLOITATION OF LOOSE RAW MATERIALS

AUTHOR/S: DIMITRIJEVIC, B., SIMIC, R., ILIC, S.
Sunday 1 August 2010 by Libadmin2004

4th International Scientific Conference - SGEM2004, www.sgem.org, SGEM2004 Conference Proceedings/ ISBN: 954-918181-2, June 14-18, 2004, 233- 244pp

ABSTRACT

With organizing the excavation tehnology of loose raw materials through the
boreholes, considering the complexity of technological operation, the most important
thing is to calculate technical-technological parameters of exploitation and to make an
optimal selection of pump aggregate, pipe line and pulp line, and also to project and
construct the equipment for drilling and obtaining of concrete deposit conditions since
there is no serial production. Hydromonitor presents its most important part that forms
and directs the strength of water stream through the jets to break the quartz sand near
the borehole, while the hidraulic elevator under the pressure lifts the pulp to the
surface of the ground. This paper shows the estimate tehnico-tehnological and
constructive parameters for borehole hydroproduction of sand where are determinated
calculation of radius of jet for selectct hydromonitor, the effect of hydrocaving,
caving capacity, hydrotransport of pulp and drawings of the most important parts of
necessary equipment for exploitation at the mining field examplified by experimental
hole-hydromining of underlying quartz sand at the "Polje-D" open pit mine in
Kolubara.

KEY WORDS: Boreholes hydro-exploitation, loose raw materials, quartz sand, hydromonitor, hydrocaving, hydroelevator, hydraulic transport,
construction of hydromonitor

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