Institute of Mining, Far East Branch, Russian Academy of Sciences, Khabarovsk, Russia:

A. Yu. Cheban, Senior Researcher, Candidate of Engineering Sciences, chebanay@mail.ru
G. V. Sekisov, Chief Researcher, Doctor of Engineering Sciences
A. G. Sekisov, Chief Researcher, Doctor of Engineering Sciences
N. P. Khrunina, Senior Researcher, Candidate of Engineering Sciences

In connection with the development of technologies and equipment for gold ore mining and processing with mobile concentrating mills, small gold ore deposits become increasingly more attractive. Advantages of many small deposits are relatively high gold content of ore and shallow depth of occurrence. In the Khabarovsk Territory, deposits composed of dispersed ore bodies of lode type are explored. The authors propose the design of a production plant for steeply dipping ore lodes of moderate thickness. The plant is equipped with a cutting drum mounted on the head of a telescopic mast with extendable stops. The turn, extension and rotation of the cutting drum is carried out by a hydraulic drive system. Processing of the extracted fi ne-fraction ore is proposed to be implemented on-site using a photometric batch-wise separation system. The combination of machine mining with subsequent separation and leaching ensures maximum recovery of valuable component. The proposed production plant in comparison with the traditional methods of mining steeply dipping ore bodies allows the reduction in number of production equipment and personnel, as well as the increase in the operations safety.

1. Zakharov B. A., Meretukov M. A. Gold: refractory ores. Moscow : “Ore and Metals” Publishing House, 2013. 452 p.
2. Adams M. D. Gold Ore Processing: Project Development and Operations. 2^nd ed. Amsterdam : Elsevier, 2016. 980 p.
3. Bas A. D., Ghali E., Choi Y. A review on electrochemical dissolution and passivation of gold during cyanidation in presence of sulphides and oxides. Hydrometallurgy. 2017. Vol. 172. pp. 30–44.
4. Zhao L.-C., Wang J.-G., Li X., Zhang S., Zhang Z.-F. et al. Application of Inductively Coupled Plasma-Atomic Emission Spectrometry/Mass Spectrometry to Phase Analysis of Gold in Gold Ores. Chinese Journal of Analytical Chemistry. 2018. Vol. 46, Iss. 2. pp. 1801–1809.
5. Natarajan K. A. Biotechnology of Metals: Principles, Recovery Methods and Environmental Concerns. Amsterdam : Elsevier, 2018. 502 p.
6. Mineev G. G., Zhuchkov L. A. Technological investigations of solubility of gold in chloridehypochlorite medium. Izvestiya vuzov. Tsvetnaya metallurgiya. 2005. No. 4. pp. 23–27.
7. Samosiy D. A. Mobile gold concentrators. Prospects. Zoloto i tekhnologii. 2017. No. 4. pp. 28–31.
8. Bulkin G. A. Quantitative Assessment of Probable Ore Reserves. Moscow : Nedra, 1984. 128 p.
9. Glotov V. V. Attraction of small mineral deposits as an investment. Gornyy informatsionnoanaliticheskiy byulleten. 2003. Special issue. Miner’s Week-2003. pp. 101–104.
10. Van-Van-E A. P. Atlas of Multifactorial Models of Gold Deposits in the Far East of Russia. Khabarovsk, 1992. 140 p.
11. Arkhipov G. I. Mineral Resources of the Mining Industry in the Far East of Russia: Strategic Assessment of Mineability. Khabarovsk : IGD DVO RAN, 2017. 820 p.
12. Cheban A. Yu. Classification of technological schemes for using surface miners. Sistemy. Metody. Tekhnologii. 2015. No. 2. pp. 159–163.
13. Cheban A. Yu. Method of developing deep-career with application of milling machines. Marksheideriya i nedropolzovanie. 2017. No. 4. pp. 23–29.
14. Wirtgen surface mining for selective limestone mining in the North Caucasus/Russia. ZKG International. 2014. Vol. 67, No. 10. pp. 18–19.
15. Netsvetaev A. G., Grigoryan A. A., Pruzhina D. I. Progress of highwall miner-based unmanned coal mining technology. Gornaya promyshlennost. 2015. No. 4. pp. 87.
16. Galchenko Yu. P. Technical and environmental aspects of the development of geotechnologies with selective excavation of minerals. Ecological Systems and Devices. 2017. No. 12. pp. 46–52.
17. Baghalha M. Leaching of an oxide gold ore with chloride/hypochlorite solutions. International Journal of Mineral Processing. 2007. Vol. 82, Iss. 4. pp. 178–186.
18. Sekisov A. G., Zykov N. V., Korolev V. S. Dispersed Gold: Geological and Technological Aspects. Moscow : Gornaya Kniga, 2012. 224 p.