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- W3205492883 abstract "The main operation associated with the preparation of mining and metallurgical wastes for use as a hardening mixture and backfilling of mined-out space is their crushing and activation. Improving the activation processes is an urgent task, since their use can significantly increase the strength of the filling mass or reduce the consumption of the binder while maintaining its strength characteristics. For the efficient operation of mining enterprises, including ferrous metallurgy mines, it is necessary to provide highquality binders for the preparation of hardening mixtures for filling man-made voids formed during underground mining of solid mineral deposits. It has been established that the use of vibration, mechanical and electrical activation of the components of the hardening backfill mixture at mining enterprises leads to an increase in the activity of substandard materials by up to 10–40% for each apparatus. In particular, the enrichment of inert materials on a vibrating screen ГВ-1,2/3,2, Ukraine, increases the activity by 15– 20%. It has been substantiated that the activation of binders (blast-furnace granular slags) in a vertical vibrating mill МВВ-0,7, Ukraine, and a disintegrator ДУ-65 company “Disintegrator”, Estonia, increases the activity of the binder by 20–25%, when the active class of fractions 0.074 mm – by 55% is released versus 40% in ball mills. The recommended vibratory conveying installations increase the activity of the components of the hardening backfill mixture by 10–15%. The use of vibro-gravity transport installations ensures the supply of the filling mixture at a distance 15–20 times higher than the height of the vertical stack." @default.
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- W3205492883 date "2021-10-12" @default.
- W3205492883 modified "2023-09-26" @default.
- W3205492883 title "Increase of activation efficiency of hardening backfilling mixture components by application mining and metallurgical wastes" @default.
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- W3205492883 doi "https://doi.org/10.32339/0135-5910-2021-10-1023-1031" @default.
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