Dynamics of vibratory partitioned feeders for the uranium ore drawing and feeding

¹ Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, 49005, Dnipro, Simferopolska Str., 2a, Ukraine
² Dnipro State Agrarian and Economic University, 49600, Dnipro, Serhiia Yefremova Str., 25, Ukraine
³ Estern Mining and Processing Plant, 52210, Zhovti Vody, Horkoho Str., 2, Ukraine
⁴ Luhansk Taras Shevchenko National University, 92700, Starobilsk, Hoholia Sq., 2, Ukraine

^* Corresponding author: vita.igtm@gmail.com

Abstract

In this paper, the authors consider dynamics of partitioned vibratory feeders with rubber elastic couplings. Use of vibratory feeders (including partitioned ones) and schemes for the ore vibrating drawing, feeding and loading in underground conditions allowed to mechanize one of the most time-consuming and dangerous processes of uranium ore mining and to solve the following problems: to improve effectiveness of the lumpy rock mass drawing and loading by 2.5-3 times; to increase intensity of mining operations and reduce life of the excavation blocks and horizons; to reduce labor intensity and cut cost of the process of ore drawing and loading; to improve uniformity of the rock-mass outflowing from the discharge opening and to reduce by 3-5 times frequency of the large-lump material freezing (use of partitioned feeders reduces number of freezes by 25-60 times); to increase size of commercial lump panels; practically to exclude traumas during the process of ore drawing and loading (usually, it presents 30-60 % of all traumas caused by the underground operations); to mechanize process of ore drawing and loading, and to create conditions for implementation of low-waste cyclic-and-continuous mining technology.