Lyashenko V.I., Golik V.I., Dmitrаk Yu.V., Franchuk V.P. Rationale for the Parameters of the Vibration Gravity Transportation of Solidifying Filling Mixtures to Mines

DOI: 10.18503/1995-2732-2021-19-1-4-16

Abstract

Problem Statement (relevance of the research): In underground mining from 40 to 80% of the formed man-made cavities are filled with solidifying filling mixtures. In most cases, such solidifying filling mixtures are transported by gravity, and performance depends on the ratio of vertical and horizontal components of filling pipelines, and for deep-level pits and mines their length do not exceed 1500 m. Methods Applied: Methods of theoretical generalizations using mathematical statistics, physical and mathematical simulation, calculations and feasibility studies, laboratory and field experimental studies, industrial tests at operating plants according to conventional and new methods. Novelty: The authors studied the technologies and facilities for the transportation of solidifying backfill mixtures and developed an algorithm for calculating diagrams of their pipeline transport to underground mined-out spaces containing 0.10–0.35 decimal quantity of dispersed particles with a concentration of solid particles in water of 0.10–0.85 decimal quantity and a 10–13 cm sediment of a standard cone. Result: An increased delivery range of solidifying mixtures expands the field of application of technologies with backfilling of mined-out space, reduces capital and operating costs and eliminates the need for building new filling complexes with the diversion of significant lanplots. Practical significance: The authors studied the parameters of transporting solidifying mixtures to man-made cavities over a long distance at a shallow depth of mining and showed that the most promising transportation was vibration gravity transportation ensuring homogenization of the mixture and an increase in strength due to its activation in the pipeline. An algorithm is suggested to calculate the parameters of the pipeline transport of solidifying backfill mixtures for two delivery options. Such algorithm may be useful, when designing underground mining technologies.

Keywords

Underground mining, solidifying mixture, pipeline transport, transportation parameters, mathematical modeling.

For citation

Lyashenko V.I., Golik V.I., Dmitrаk Yu.V., Franchuk V.P. Rationale for the Parameters of the Vibration Gravity Transportation of Solidifying Filling Mixtures to Mines. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2021, vol. 19, no. 1, pp. 4–16. https://doi.org/10.18503/1995-2732-2021-19-1-4-16

Vasiliy I. Lyashenko – PhD (Eng.), Head of the Research Department, Senior Researcher, Ukrainian Research and Design Institute for Industrial Technology, Zhovti Vody, Ukraine. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Vladimir I. Golik – DrSc (Eng.), Professor of the Mining Department, North Caucasian Mining and Metallurgical Institute (State Technological University), Vladikavkaz, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Yuriy V. Dmitrаk – DrSc (Eng.), Professor, Rector, North Caucasian Mining and Metallurgical Institute (State Technological University), Vladikavkaz, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Vsevolod P. Franchuk – DrSc (Eng.), Professor of the Department of Engineering and Design in Mechanical Engineering, Dnipro Polytechnic National Technical University, Dnipro, Ukraine. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

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Details: Published: 24 March 2021; Last Updated: 24 March 2021; Hits: 2203