Shevchenko V.G., Shevchenko G.O., Lebed G.B., Sushchenko O.I. Polystyrene screens for fine classification and dewatering of crushed uranium minerals and waste

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Parent Category: Geo-Technical Mechanics, 2017

Category: Geo-Technical Mechanics, 2017, Issue 137

 

Geoteh. meh. 2017, 137, 80-92

POLYSTYRENE SCREENS FOR FINE CLASSIFICATION AND DEWATERING OF CRUSHED URANIUM MINERALS AND WASTE

¹Shevchenko V.G., ¹Shevchenko G.O., ¹Lebed G.B., ¹Sushchenko O.I.

¹M.S. Polyakov IGTM NAS of Ukraine

UDC 622.349.5.002.68:622.8

Abstract. To separate conditioned particles of the crushed uranium ore from the closed cycle, it is proposed to use vibrating multifrequency screens designed for classification of bulk materials and separation of solid particles from the pulps or slurries by their size ranging from few microns to millimeters. With shock-vibrating multifrequency excitations of the tool and screen surfaces of the vibrating multifrequency screen МВГ, it is possible to separate, with good effectiveness, sludge-forming particles from technological grinding cycle at the stage of maximum opening of uranium ore grains, dehydration of the separated grains and separation and dehydration of the waste rocks from the alkaline solution for further utilization. In technological schemes for enriching uranium ores, vibrating multifrequency screens can be installed in order to separate substandard particles prior to uranium leaching, to improve leaching efficiency and reduce consumption of alkaline solution, or, generally, to be used instead of hydrocyclones in the closed grinding cycle. This can reduce over-crushing of conditioned ore particles in the closed cycle, increase productivity of technological chain (sections) of grinding due to more effective use of ball mill power, reduce energy costs and wear of mineral crushing and processing equipment.

Keywords: fine classification, dewatering, crushed uranium ore, processing waste, multifrequency screens.

 

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About the authors

Shevchenko Volodymyr Georgiyovych, Doctor of Technical Sciences (D. Sc), Senior Researcher, Scientific Secretary of the Institute, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Shevchenko Georgiy Oleksandrovych, Doctor of Technical Sciences (D. Sc.), Senior Researcher, Head of Laboratory of Vibratory Processing of Mineral Raw Materials, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Lebed Gennady Borysovych, Master of Science, Senior Design Engineer, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnipro, Ukraine.

Sushchenko Olersandr Ivanovych, Master of Science, Design Engineer 1st cat., N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnipro, Ukraine.

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