Tashkent State Technical University (Tashkent, Republic of Uzbekistan):

Rakhimov V. R., Head of a Chair, Academician of Academy of Sciences of Republic of Uzbekistan, phone: +998 (71) 246-54-51

Pyankov A. G., Senior Researcher

Petrosov Yu. E., Head of a Chair

State Enterprise «Navoi Mining and Metallurgical Combine» (Navoi, Republic of Uzbekistan):

Shemetov P. A., Doctor of Engineering Sciences

An integral assessment of technical and economic indices of «open-ended» technology of the whole cycle of final marketable products manufacturing (subject to the influence of each technological conversion on the others) is an urgent task in the following conditions: exhausting of reserves of rich ores with development depth; more significant involving of poor and off-balance ores and anthropogenic splashes into extraction and processing; complex usage of mineral raw material resources. Researches and analysis of energy intensity of the basic stages of mining production and preparation of ore mass to concentration were carried out by the joint collaboration of scientists of Tashkent State Technical University and specialists of largest Uzbekistan open pits (Muruntau gold ore open pit and Kalmakir copper ore open pit). According to results of these researches, the numerical values of power inputs were stated in terms of developed rock strength and average size of blasted ore mass in Muruntau open pit. The basic conclusion of researches became the substantiation of technological and economic feasibility of redistribution of energy consumptions by intensification of drilling and blasting crushing of durable rock massifs. A new technology of intensive drilling and blasting crushing of ore mass is developed, proposed and directed on obtaining of average size of parts of broken ore mass, optimal for following conversions of mining production and ore mass processing.

1. Malgin O. K., Kustov A. N., Shemetov P. A. Sovershenstvovanie vzryvnykh rabot v Navoiyskom Gorno-metallurgicheskom Kombinate (Improvement of blasting operations at Navoi Mining and Metallurgical Combine). Gornyy vestnik Uzbekistana — Mining Bulletin of Uzbekistan, 2002, No. 3.
2. Cherkasov V. Yu., Kustov L. A., Agapov D. A. Puti optimizatsii peredela izmelcheniya (Ways of optimization of grinding limit). Gornyy vestnik Uzbekistana — Mining Bulletin of Uzbekistan, 2006, No. 2.
3. Sytenkov V. N., Bibik I. P., Kolomnikov S. S. Rezultaty opytno-promyshlennykh rabot po utochneniyu parametrov burovzryvnykh rabot na rudnike «Muruntau» (Results of experimental and industrial operations for specification of parameters of drilling and blasting operations in Muruntau open pit). Gornyy vestnik Uzbekistana — Mining Bulletin of Uzbekistan, 2007, No. 3.
4. Sytenkov V. N., Filipov C. A., Kurolov A. A. O strategii otkrytoy razrabotki mestorozhdeniy na osnove formirovaniya tekhnologicheskikh modeley (About the strategy of open-cast mining of deposits on the basis of formation of technological models). Gornyy vestnik Uzbekistana — Mining Bulletin of Uzbekistan, 2005, No. 4.
5. Bibik I. P., Lunin S. V., Dzhos V. F. Vzryvanie vysokikh ustupov v karere Muruntau (Blasting of high benches in Muruntau open pit). Gornyi Zhurnal — Mining Journal, 2007, No. 5.
6. Bibik I. P. Vybor i obosnovanie parametrov protsessov burovzryvnykh rabot dlya povysheniya effektivnosti gornotransportnogo oborudovaniya glubokikh karerov : avtoreferat dissertatsii kandidata tekhnicheskikh nauk (Choice and substantiation of parameters of processes of drilling and blasting operations for increasing of efficiency of mine transport equipment of deep open pits : thesis of inauguration of Dissertation … of Candidate of Engineering Sciences). Navoi, 2002.