Zangezur Copper Molybdenum Combine, Kajaran, Republic of Armenia:

Akopyan M. A., Chief Executive Officer, e-mail: tdzcmc@yandex.ru

Markaryan A. V., Technical Officer, Candidate of Engineering Sciences

Bezirganyan K. V., Head of the Processing Plant

Science and Production Association "RIVS" JSC, Saint Petersburg, Russia:

Arustamyan M. A., Technical Officer, Candidate of Engineering Sciences

Arustamyan A. M., Deputy Chief Engineer of a Project

In the recent years, Zangezur Copper Molybdenum Combine (Zangezur CMC) have been successfully realizing the construction projects and modernization of all production areas of the processing plant, by the increasing of output and its quality, and the decreasing of exploitation wastes. Science and Production Association "RIVS" is the chief contractor of the construction and modernization of the processing plant. It also acts as the chief designer and equipment supplier, which realizes the supervision, balancing, commissioning, and organization of construction. The first construction stage of the processing plant had been realized since 2004 till 2010. The processing capacity increased from 8,2 to 13,5 mln. t of ore per year. Meanwhile, there improved the technological concentration values of copper and molybdenum. In 2011, there was signed a contract for the processing plant widening with bringing its ore productivity to 20-25 mln. t. The contract covers all operations of the technological concentration chain. Due to this contract, the following operations are foreseen:
• the introduction of the collective copper-molybdenum flotation sections with the productivity of 8 mln. t of ore per year;
• the modernization of cycles of the collective, copper and molybdenum flotation, completed with the DRF flotation machines (Development and Research of Flotators) and the DRF contact agitators;
• the construction of new thickener with 30 m diameter.
Science and Production Association "RIVS" and Zangezur CMC realized the first project in CIS countries of the construction of ore preparation building, using the semi self crushing mill SAG (10,34x4,6 m) with 406 m³ volume and the center discharge ball mill CBM (МШЦ) (6,1x9,5 m) with 260 m³ volume. Zangezur CMC constantly increases the technological values in the conditions of the considerable decreasing of the content of mineral components in ore. This confirms the correctness of the chosen development strategy for enterprise, considering the choice of equipment and technology with the effective cooperation of the specialists from Zangezur CMC and Science and Production Association "RIVS".

1. Akopyan M. A., Markaryan A. V., Bezirganyan K. V. et al. Pervye rezultaty tekhnicheskogo perevooruzheniya Kadzharanskoy obogatitelnoy fabriki Zangezurskogo MMK (Armeniya) (First results of the technical re-equipment of Kajaran processing plant of Zangezur CMC (Republic of Armenia)). Gornyi Zhurnal – Mining Journal, 2008, Special issue, pp. 88–91.

2. Arustamyan A. M., Arustamyan K. M. Sovershenstvovanie tekhnologii obogashcheniya medno-molibdenovykh rud Kadzharanskogo mestorozhdeniya (Improvement of the concentration technology of copper molybdenum ores of Kajaran deposit). Gornyi Zhurnal – Mining Journal, 2010, Special issue, pp. 44–47.

3. Bonifazi G., Serranti S., Volpe F., Zuco R. Characterization of flotation froth color and structure by machine vision. Computers & Geosciences, 2001, No. 27.

4. Skarin O. I., Kruppo P. I., Ivanov A. N. Intensifikatsiya protsessov polusamoizmelcheniya optimizatsiey granulometricheskogo sostava pitaniya melnits (Intensification of semi self crushing processes by optimization of the granulometric composition of mills` supplying). Gornyi Zhurnal – Mining Journal, 2010, Special issue, pp. 6–12.