| Annotation |
The development of fields of non-ferrous metals is often carried out in the hilly terrain with relative marks to 500…by 700 m. Ore fields include small fields (ore bodies), scattered on the areas having industrial interest, but small stocks. Processing of the extracted ores is made at the central enrichment factory on which transportation causes rather large expenses, reducing efficiency of small fields’ development. Enrichment waste dangerously pollutes the environment when are warehoused on the land surface. By underground mining there is a possibility of complex development of subsoil space. In the last decades an increase in efficiency of mining, industrial and environmental safety is connected with moving of ores enrichment to underground space.
During small fields’ development, lying higher than the level of the valley, positive results are achieved by a construction and operation of the enrichment modules, placed at the level of capital adits. Development of stocks is carried out by the systems with a full tab of the developed spaces enrichment tails. According to the offered technique the rational location of the enrichment module (EM) is set in two steps: firstly coordinates in the beginning x, y of EM to which there correspond the minimum complex expenses is found. The problem of optimization is solved in a coordinate system, which is located so that the origin of coordinates was on the right (left) flank of an ore body, OX axis – through extension of an ore body, the axis of OY is oriented in breeds of the lying side in the direction in an extension cross. Limits on an axis OH make 0… L – field length on extension, m. The set coordinates x, is adjusted by y of the EM center for a condition of reliability of technological cameras of EM at long operation: cameras of a complex should be placed outside zones of potential seismic impacts from explosive works at extraction of ores, in the steady, strong breeds, allowing the large areas of vertical and horizontal exposure. The construction of the technological camera of the enrichment module is possible on the basis of own miner resources. The algorithm of a construction includes passing of upper cutting (part), then pass of the lower part of the camera.
It is concluded that the cost efficiency of small ore fields’ development of mountain type, located higher than the level of valleys, is reached by placement of underground enrichment modules at the level of capital adits
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References
1. Abramov V. F., Lushnikov V. I., Sazhenev A. A. Tsvetnaya metallurgiya (Non-ferrous metallurgy), 1984, no. 12, pp. 71–72.
2. Antonenko L. K., Zoteev V. G. Gorny zhurnal (Mining Journal), 1998, no. 1, pp. 65–67.
3. Bodrov S. S., Permyakov R. S. Gorny zhurnal (Mining Journal), 1997, no. 1, pp. 50–54.
4. Golyarchuk N. I. Gorny zhurnal (Mining Journal), 1991, no. 9, pp. 21–24.
5. Elnikov V. N., Leyzerovich S. G., Uskov A. Kh. Gorny informatsionno-analiticheskiy byulleten (Mining information and analytical bulletin), 2000, no. 5, pp. 27–29.
6. Kaplunov D. R. Gorny zhurnal (Mining Journal), 1995, no. 1, pp. 46–49.
7. Krupnik L. A., Sokolov V. G., Edilbaev V. I. Gorny zhurnal (Mining Journal), 1987, no. 6, pp. 20–22.
8. Krupnik L. А., Pyatigorsky L. V. Gorny informatsionno-analiticheskiy byulleten (Mining information and analytical bulletin), 2000, no. 4, pp. 204–206.
9. Patent 2338879 RF. Sposob razrabotki rudnyh mestorozhdeniy (Patent 2338879 of the Russian Federation. Method of ore deposits’ development); G. G. Pirogov; patent holder Chita State University; declared on March 26, 2007; publ. 20.11.2008, bul. no. 32.
10. Semigin R. I., Schwartz Yu. D., Zitser I. S. Gorny zhurnal (Mining Journal), 1995, no. 5, pp. 31–33.
11. Shvartz Yu. D., Kutuzov D. S., Zitser I. S. Tsvetnaya metallurgiya (Non-ferrous metallurgy), 1994, no. 8, pp. 3–9.
12. Schwartz Yu. D., Semigin R. I., Zitser I. S., Kutuzov D. S. Gorny zhurnal (Mining Journal), 1992, no. 5, pp. 42–45.
13. Shvetsov P. F., Zilberbord A. F. Priroda (Nature), 1981, no. 10, pp. 27–32.
14. Nantel J. Minefill. AusIMM (Minefill. AusIMM), 1998, April 14.
15. Ritcey G. M. Tailings management (Tailings management). Amsterdam: Elsevier; Oxford; New York; Tokyo, 1989. 970 p.
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