MINING OPERATIONS | |
Название | Intensification of the blast-hole breaking of rocks in the deep open pit |
Автор | Togunov M. B., Shitov Yu. A., Danilkin A. A., Melik-Gaykazov G. V., Fokin V. A. |
Информация об авторе | Kovdor Ore Dressing and Processing Enterprise, Kovdor, Russia: Togunov M. B., Chief Specialist on Drilling and Blasting Operations of the Technical Control Division, e-mail: Mickail.Togunov@eurochem.ru Shitov Yu. A., Deputy Chief Engineer of the «Zheleznyy» Mine on Drilling and Blasting Operations, e-mail: Yury.Shitov@eurochem.ru Danilkin A. A., Acting Deputy Head of the Excavation Area of the «Zheleznyy» Mine, e-mail: Aleksander.Danilkin@eurochem.ru
«Eastern Mining Services» Company, Kovdor, Russia: Melik-Gaykazov G. V., Chief Management Officer, e-mail: EMS@kovdor.mels.ru
Mining University of Kola Scientific Center of Russian Academy of Sciences, Apatity, Russia: Fokin V. A., Leading Researcher, Doctor of Engineering Sciences, e-mail: fva666@goi.kolasc.net.ru |
Реферат | Nowadays, in the connection with the deficiency of the internal phosphate raw materials and increasing of its price on the global market, according to the task of the Mineral and Chemical Company “EuroChem”, there is developed the project of the power increasing of the extraction and concentration of apatite and magnetite ores from 16 to 18.7–19 mln. t/year. In connection with this, there are being held the researches and development works on intensification of the blast-hole breaking of ore and overburden rocks. The object of these operations is the decreasing of energy intensity and yield increasing of the following redivisions: breaking and conveyance in the complexes of the cyclical and continuous technology; secondary and fine breaking and crushing of ore on the processing complex. |
Ключевые слова | Blast-hole breaking, diameters of holes and charges, line boosters, granulometric composition, complex criteria of blast breaking quality, energy intensity, productivity, extraction |
Библиографический список | 1. Togunov M. B., Shitov Yu. A., Melik-Gaykazov G. V. et al. Gornyi Zhurnal — Mining Journal, 2007, No. 9, pp. 40–44. |
Language of full-text | английский |
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