Shevchenko V.G., Shevchenko G.O., Lebed G.B., Sushchenko O.I. To the use of feeders with vibro-impact drive for increasing productivity and safety of the uranium ore drawing

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Parent Category: Geo-Technical Mechanics, 2017

Category: Geo-Technical Mechanics, 2017, Issue 135

Geoteh. meh. 2017, 135, 32-45

TO THE USE OF FEEDERS WITH VIBRO-IMPACT DRIVE FOR INCREASING PRODUCTIVITY AND SAFETY OF THE URANIUM ORE DRAWING
 Shevchenko V.G., Shevchenko G.O., Lebed G.B., Sushchenko O.I.
IGTM NAS of Ukraine

UDC 622.349.5.002.68:622.8

Abstract. In the article, factors, which impact on productivity and safety of uranium-ore drawing from the draw hole with the help of vibratory feeders, are analyzed. Proposals were developed, which improved methods and means for uranium-ore drawing from the draw holes by vibratory feeders. In order to overcome drawbacks of vibrating uranium-ore drawing from the mining panels, it is proposed to use feeders with adaptive vibratory drive, whose oscillations would increase with the grown reaction of the column of the broken rock mass and propagate deeper into the rock thickness. Creation of vibratory feeders with adaptive vibratory drive is possible with vibro-impact excitations of the tray in the vibratory feeders with broken uranium ore on it. Adaptability of the vibratory drive is realized through the grown dynamic gap in the vibro-impact system with decreased amplitude of the feeder tray oscillation and with grown reaction of the column of the broken rock mass. With vibro-impact excitations, oscillations of tray and, accordingly, medium flowing on it, are amplified resonantly together with the tray poly-frequency oscillations. Use of feeders with vibro-impact drive will reduce prime cost of uranium-ore drawing from the draw holes and increase its productivity and safety.
Keywords: uranium-ore drawing from the draw holes, feeders, vibro-impact drive, resonance oscillations, productivity and safety.

REFERENCES

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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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