Ural State Mining University (Russia):

Kozin V. Z., Doctor of Engineering Sciences, Professor, Head of Chair, gmf.dek@ursmu.ru
Komlev A. S., Ph. D. in Engineering Sciences, Engineer, tails2002@inbox.ru

The studies were performed with a view to improve the existing GOST standard 14180—80(95) for making decisions on processing products quality control. The national standard is a necessary document for organization of sampling at concentrating plants. However, many provisions of the existing GOST standard 14180—80(95) require alteration. It is necessary to equalize application of methods of cross sections and longitudinal sections of streams; introduce into application reloading method; correct the requirements to sample cutters; validate more simple methods for determination of sampling variation coefficients and sampling errors, eliminating cumbersome and inefficient methods for their determination according to annexes to standard 1 and 3; find sampling errors proceeding from operational requirements; soften the demands to rounding of calculated number of spot samples; introduce into practice a combined sampling method, reducing all types of errors. In preparation of the proposed alterations for the standard, the authors are relying on long-term experience in sampling processes theoretical studies; the analysis of state of sampling at concentrating plants; sampling quality assessment at non-ferrous metals concentrating plants, gold recovery plants and a number of other operations; new sampling devices development and application experience; reports from specialists on sampling efficiency of newly developed sampling devices. At present time, the alterations in GOST standard 14180-80(95) are possible only upon the requests of production enterprises. Following discussions of the proposed alterations on the pages of the journal «Obogashchenie Rud», this initiative should be taken.

1. Kushparenko Yu. S. The values of «K» factor when determining the mass of solid samples. Innovatsionnyye protsessy v tekhnologiyakh kompleksnoy, ekologicheski bezopasnoy pererabotki mineralnogo i netraditsionnogo syrya (Plaksinskiye chteniya—2009) (Innovative processes in technologies of complex, environmentally safe processing of mineral and nonconventional raw materials (Plaksin readings—2009)). Novosibirsk, 2009, pp. 289–290.
2. Lyapin A. G. Engineering-analytical control of the technologies for mining and processing of mineral raw materials. Gornyi Zhurnal = Mining Journal, 2009, No. 4, pp. 14–16.
3. Morozov V. V., Stolyarov V. F., Delgerbat L., Ganbaatar Z. Control of copper-molybdenum ores flotation by continuous ray fluorescence analysis. Avtomatizatsiya v gornom dele, obogashchenii i metallurgii. Sbornik nauchnykh trudov (Automation in Mining, Mineral and Metal Processing. Collection of scientific papers). Chile, Mar del Plata, 2009, pp. 1145–1148.
4. Chunyue Song, Kailin Hu, Ping Li. Modeling and scheduling optimization for bulk ore blending process. Journal of Iron and Steel Research, International, 2012, Vol. 19, Iss. 9, September, pp. 20–28.
5. Lotter N. O., Kowal D. L., Tuzun M. A., Whittaker P. J., Kormos L. Sampling and flotation testing of Sudbury Basin drill core for process mineralogy modeling. Minerals Engineering, 2003, Vol. 16, Iss. 9, pp. 857–864.
6. GOST 14180—80. Rudy i kontsentraty tsvetnykh metallov. Metody otbora i podgotovki prob dlya khimicheskogo analiza i opredeleniya vlagi (State Standard 14180—80. Ores and concentrates of nonferrous metals. Methods of sampling and sample preparation for chemical analysis and determination of moisture).
7. Pat. 2347205 RU.
8. Glazatov А. N., Tsemekhman L. Sh., Lukashova М. V., Eroshevich S. Yu., Lazarev V. I. Improvement of the testing procedure of dump slag from Vaniukov’s furnaces at the Copper plant of M&MC «Norilsk nickel». Tsvetnye Metally = Non-ferrous Metals, 2012, No. 10, pp. 39–44.
9. Kozin V. Z., Vodovozov K. A. Factors causing positive product imbalance at ore-dressing plants. Obogashchenie Rud = Mineral Processing, 2013, No. 2, pp. 27–31.
10. Kozin V. Z. Oprobovaniye mineralnogo syrya (Testing of mineral resources). Ekaterinburg, Ural State Mining University, 2011, 316 pp.
11. Kozin V. Z., Komlev A. S. A combination sampling method for processing products and equipment for its implementation. Obogashchenie Rud = Mineral Processing, 2014, No. 3, pp. 28–32.
12. Cleary P. W., Robinson G. K. Sampling of cohesive bulk materials by falling stream cutters. Chemical Engineering Science, 2011, Vol. 66, Iss. 17, pp. 3991–4003.
13. Hassell D. C., Bowman Е. М. Process analytical chemistiy for spectroscopist. Appl. Spectrosc., 1998, Vol. 52, No. 1, pp. 18A–29A.
14. Uhlig S. Process control by modern X-ray fluorescence (XRF) analysis. Proc. of the XX International Mineral Processing Congress, Germany, 1997, pp. 175–182.
15. GOST R ISO 5725-1, 2, 3, 4, 5, 6—2002. Tochnost’ (pravilnost’ i pretsizionnost’) metodov i rezultatov izmereniy (State Standard R ISO 5725-1, 2, 3, 4, 5, 6—2002. Accuracy (trueness and precision) of measurement methods and results).