Erdenet Mining Corporation, Erdenet, Mongolia:

Ganbaatar Z., Deputy Chief Executive Officer on Development, Candidate of Engineering Sciences, phone: +976(0) 13-52-73-501

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

Nazarov Yu. P., Leading Researcher, Candidate of Engineering Sciences

Polyanskiy M. V., Director on Construction and Reconstruction of Concentrating Mills

During 30 years, the concentrating mill of Erdenet Mining Corporation (Mongolia) has successfully exsploitated the twostage concentration scheme of copper-molybdenum ores. It includes three consecutive conversions: collective cycle, finishing cycle and molybdenum cycle. Considering the manufacturing reconstruction process, one of the landmark components is the formation of the technological schemes with the following substantiation of the scheme of devices` series. The task for the operating manufactures became more complex, because of the adaptation necessity of the developed scheme of the devices` series to the existing production spaces. For example, the schemes of the devices` series are the considerably rigid structures, created for the specific type of the delivered raw materials. At the same time, increasing of the productivity of existing enterprises foreordains the involving of ores, delivered from various parts of ore body, into the synchronous processing. These ores differ by the content of mineral resources, the ratio of primary and secondary minerals, the oxidation level, the slimes content, etc. All these factors provide the creation reasonability of schemes with the increased technological flexibility, which makes it possible to respond rather efficiently on the properties changing of the delivered raw materials.

1. Ganbaator Z., Nazarov Yu. P., Polyanskiy M. V. Proektnye resheniya pri rekonstruktsii glavnogo korpusa KOO «Predpriyatie «Erdenet» s primeneniem oborudovaniya NPO «RIVS» (Project decisions at the reconstruction of the main building of Erdenet Mining Corporation, with an application of equipment of Scientific and Production Association "RIVS"). Gornyi Zhurnal – Mining Journal, 2010, Special issue, pp. 87–92.

2. Baatarkhuu Zh. Tekhnologiya obogashcheniya mednoporfirovykh rud na osnove izucheniya ikh genetiko-morfologicheskikh osobennostey (Concentration technology of the copper-porphyritic ores, on the basis of the research of their genetic and morphological features). Erdenet : MAMBKh-MMRA Publ., 2006.

3. Mineralnoe syre. Molibden (Mineral raw materials. Molybdenum). Publishing House of the Ministry of Nature of Russian Federation, 1987.

4. Ganbaatar Z., Baatarkhuu Zh., Gezegt Sh., Tuyaa Ts., Sataev I. Sh. Sovershenstvovanie tekhniki i tekhnologii obogashcheniya medno-molibdenovykh rud na obogatitelnoy fabrike «Erdenet» (Improvement of technics and technology of the concentration of copper-molybdenum ores on Erdenet Mining Corporation). Gornyi Zhurnal – Mining Journal, 2008, Special issue, pp. 25–27.