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Название Water consumption calculation methodology in the design of clay mineral washing systems
DOI 10.17580/or.2022.02.01
Автор Bauman A. V., Stepanenko A. I., Baranova A. A.
Информация об авторе

GORMASHEXPORT (Novosibirsk, Russia):

Bauman A. V., Director for Research, Candidate of Engineering Sciences, aleksei_bauman@mail.ru
Stepanenko A. I., CEO, goraexport@mail.ru
Baranova A. A., Process Engineer, goraexport_ba@mail.ru


The results of physical modeling indicate the existence of an optimum specific water consumption for clay mineral washing, any deviation from which reduces the efficiency of the process. It has been established that the optimum water consumption for the washing process depends on the properties of the clay material and its ability to disperse. It has been found that the washing process is affected by the initial dispersed phase structuring concentration of the material in the washing water. With higher specific water consumption values, process efficiency initially improves, but then changes to a downward trend (after passing the peak consumption value). It is noted that peak efficiency values are observed when the clay component concentration in the washing water reaches the solid phase sedimentation stability threshold for the clay material. The article contains recommendations on establishing the threshold initial dispersed phase structuring concentration. Experimental and analytical modeling was used to propose a method and a formula for calculating the optimal amount of water when designing clay mineral washing processes for washing trommels and log washers. Adjustment coefficients to be used with the formula were identified for each machine type and size and for various initial material moisture values. The actual linear correlation coefficients for the clay mineral washing water consumption formula were established, to be used with scrubbers, scrubber trommel screens, and various types of log washers. Actual inspection data for clay minerals washing and disintegration systems were used to develop recommendations for the selection of equipment types depending on the system feed material properties.

Ключевые слова Washing, disintegration, clay, structured suspension, sedimentation stability, washing trommel, log washer
Библиографический список

1. Vaisberg L. A., Ustinov I. D. Introduction to the technology of mineral separation. St. Petersburg: Russkaya Kollektsiya, 2019. 168 p.
2. Chanturiya V. А., Vaisberg L. A., Kozlov А. P. Promising trends in investigations aimed at all-round utilization of mineral raw materials. Obogashchenie Rud. 2014. No. 2. pp. 3–9.
3. Troitsky V. V. Washing and deslamation of minerals. 2nd ed., rev. and expand. Moscow: Nedra, 1988. 278 p.
4. Razumov K. A. Designing of concentrating plants. Moscow: Kniga po Trebovaniyu, 2019. 520 p.
5. Reference book on beneficiation of ores. Vol. 1. Preparatory processes. Ed. O. S. Bogdanov, V. A. Olevsky. 2nd ed., rev. and expand. Moscow: Nedra, 1982. 366 p.
6. Shokhin V. N., Lopatin A. G. Gravitational beneficiation methods. Moscow: Nedra, 1993. 350 p.
7. Baranov V. F. Handbook on the design of ore processing plants. In 2 bks. Moscow: Nedra, 1988. Bk. 1. 374 p.
8. Koronovsky N. V., Yakusheva A. F. Fundamentals of geology. Moscow: Vysshaya Shkola, 1991. 416 p.
9. Osipov V. I., Sokolov V. N., Rumyantseva N. A. Microstructure of clay rocks. Moscow: Nedra, 1989. 211 p.
10. Dondi M., Bertolotti G. P. Basic guidelines for prospecting and technological assessment of clays for the ceramic industry. Part 1. Interceram — International Ceramic Review. 2021. Vol. 70. pp. 36–46.
11. Kotelnikov D. D., Konyukhov A. I. Clay minerals of sedimentary rocks. Moscow: Nedra, 1986. 247 p.
12. Zakharov E. V., Kurilko A. S. Change of specific surface of rocks under cyclic freezing–thawing. Gorny Informatsionnoanaliticheskiy Byulleten'. 2018. No. 12. pp. 31–38.
13. Weng L., Wu Z., Liu Q. Dynamic mechanical properties of dry and water-saturated siltstones under sub-zero temperatures. Rock Mechanics and Rock Engineering. 2020. Vol. 53. pp. 4381–4401.
14. Suknev S. V. Influence of temperature and water content on elastic properties of hard rocks in thaw/freeze state transition. Fiziko-tekhnicheskie Problemy Razrabotki Poleznykh Iskopayemykh. 2019. No. 2. pp. 14–22.
15. Shirman G. V. The effect of cryogenic treatment of clay aggregates in their disintegration in the washing drum. Fundamentalnye i Prikladnye Voprosy Gornykh Nauk. 2018. Vol. 5, No. 1. pp. 232–235.

16. Wu H., Liu P., Wu W., Fan Q., Zhao X., Li P., Liang J., Qiang S. Exploring the relationship between Th(IV) adsorption and the structure alteration of phlogopite. Applied Clay Science. 2018. Vol. 152. pp. 295–302.
17. Karmazin V. I., Sergo E. E., Zhendrinsky A. P. et al. Processes and machines for mineral processing. Moscow: Nedra, 1974. 560 p.
18. Shchukin E. D., Pertsov A. V., Amelina E. A. Colloid chemistry. 7 ed., rev. and expand. Moscow: Yurayt, 2020. 444 p.
19. Uriev N. B. Technology of dispersed systems and materials: physicochemical dynamics of structure formation and rheology. John Wiley & Sons Limited, 2016. 192 p.
20. Uriev N. B. Highly concentrated dispersed systems and materials. 2nd ed., expand. Moscow: Tekhpoligraftsentr, 2018. 407 p.
21. Bauman A. V. Sedimentation stability and simulation of thickening and water circulation processes. Proc. of the XXIX International mineral processing congress IMPC 2018. pp. 231–232.
22. Bauman A. V. Analysis of aggregation and sedimentation stability of process slurries. Obogashchenie Rud. 2018. No. 2. pp. 55–60. DOI: 10.17580/or.2018.02.10.
23. Bauman A. V. Condensation and water circulation. Pt. I. Research and design. Novosibirsk: Sibprint, 2020. 32 p.
24. New handbook of chemist and technologist. Processes and devices of chemical technologies. Part 1. St. Petersburg: Professional, 2004. 848 p.
25. Ruzinov Ya. P., Slobodchikova R. I. Experiment planning in chemistry and chemical technology. Moscow: Khimiya, 1980. 280 p.
26. Romankov P. G., Kurochkina M. I. Hydromechanical processes of chemical technology. Leningrad: Khimiya, 1982. 288 p.
27. Bauman A. V. Concentrating plants thickening circuits and return water systems design problem areas. Obogashchenie Rud. 2016. No. 3. pp. 58–62. DOI: 10.17580/or.2016.03.10.
28. Stepanenko A. I., Bauman A. V. Modernization and reconstruction of beneficiation plants. Engineering and equipment. Novosibirsk: Sibprint, 2020. 44 p.

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