Institute of Mining of Ural Branch of Russian Academy of Sciences (Ekaterinburg, Russia):

S. N. Zharikov, Senior Researcher, Candidate of Engineering Sciences, e-mail: 333 vista @mail.ru

V. G. Shemenyov, Head of Laboratory, Candidate of Engineering Sciences

Power-intensity of industrial cycle per unit of marketable product is a universal index of efficiency of the whole industrial cycle of mining enterprise with open-cast mining of deposit. Electric energy, fuel combustion energy and charge chemical decomposition energy are consumed in each separate process of open-cast mining of deposit. That's why, it is reasonable to build the efficient control of processes, taking into account the united criteria, which is a specific power consumption or power intensity of process. At the same time, being a stable characteristic of technological process, specific power consumption does not depend on macroeconomic factors. That's why, this value is the most accurate in the time of estimation of efficiency of one or another process, and rather useful index, because the consumed energy can always be estimated in money terms. Universality of estimation of efficiency of technological processes on their power intensity and efficiency of such approach are confirmed on practice. Possibility of efficient control of energetic flows of ore mining production for optimal engineering solutions appears with established interconnections between the specific energetic characteristics of adjoining processes. The corresponding analysis of power intensity of consistent and interconnected technological processes of ore mining production with open-cast mining is given in this article as a universal index for estimation of efficiency and optimization of each production stage, and whole industrial cycle. It is accented that drilling and blasting operations make a significant influence on power intensity of following technological processes of extraction and primary processing of mineral. For example, efficiency of excavation and mechanic crushing in the time of extraction and processing of ore mass depends directly on power intensity of blasting operations. That's why, it is recommended to regulate the power intensity of drilling and blasting crushing of rock mass in open pit to the following production stages of mining production, mechanic crushing and grinding of rock mass.

1. Zharikov S. N. Vzaimosvyaz udelnykh energeticheskikh kharakteristik protsessov sharoshechnogo bureniya i vzryvnogo razrusheniya massiva gornykh porod : dissertatsiya … kandidata tekhnicheskikh nauk (Interconnection of specific energetic characteristics of processes of roller-bit drilling and blast fragmentation of rock massif : Dissertation … of Candidate of Engineering Sciences). Institute of Mining of Russian Academy of Sciences. Ekaterinburg, 2011, 139 p.
2. Zharikov S. N., Shemenev V. G. O vliyanii tekhnologicheskikh vzryvov na aktivizatsiyu sovremennykh geodinamicheskikh dvizheniy v rayonakh nedropolzovaniya (About influence of technological blasts on activation of modern geodynamic processes in the regions of surface use). Problemy nedropolzovaniya : materialy V Vserossiyskoy molodezhnoy nauchno-prakticheskoy konferentsii (Problems of surface use : materials of the V All-Russian scientific and practical conference of young people). Institute of Mining of Ural Department of Russian Academy of Sciences. Ekaterinburg, 2011, pp. 415–425.
3. Adushkin V. V., Solovev S. P. Fizika goreniya i vzryva — Combustion, Explosion and Shock Waves, 2004, Vol. 40, No. 6, pp. 42–51.
4. Zubkov A. V. Geomekhanika i geotekhnologiya (Geomechanics and geotechnology). Ekaterinburg : Ural Department of Russian Academy of Sciences, 2001, 335 p.
5. Tangaev I. A. Energoemkost protsessov dobychi i pererabotki poleznykh iskopaemykh (Power intensity of processes of extraction and processing of minerals). Moscow : Nedra, 1986, 231 p.
6. Kurlenya M. V., Medvedev M. L. Izvestiya vuzov. Gornyy zhurnal — Proceedings of Universities. Mining Journal, 2008, No. 1, pp. 18–28.