Improvement of Safety and Efficiency of Cleaning Settled Dust in the Premises of Mining and Processing Enterprises


The results of study are given concerning the issues of improving safety and efficiency of cleaning settled dust in the premises of mining and processing enterprises using a mobile autonomous dust collection unit. The following is used in the work: data from literary sources and patent documentation in the field of technologies and technical means to improve safety and efficiency of cleaning settled dust in the premises of mining and processing enterprises; substantiation of the parameters of the operational characteristics of a mobile autonomous dust collecting plant; laboratory and production experiments; physical modeling. It is shown that when cleaning dust from the metal structures, equipment, as well as covering their surfaces, two nozzles were used: for cleaning caked dust and a flattened pipe with a diameter of 25 mm. Cleaning speed of 1 m2 of metal structures was 1.6–1.9 min. It was found that on the horizontal and lateral surfaces, as well as on the floor, a nozzle with a slit length of 240 mm and a width of 4.3 mm showed good results.

Cleaning speed with such a nozzle is 1.33–1.48 m2/min. When the concrete floor is uneven or the thickness of the dust layer increased to 5–8 mm, the cleaning speed decreased to 0.55 m2/min. The design of the dust collecting plant and its operation modes are proposed, which allow collecting up to 0.6 t/h of the settled dust. Dust content in the air in the crushing shop of the sorting plant of the Rodina mine (Krivoy Rog, Ukraine) after cleaning the settled dust decreased from 4.5 to 2.5 mg/m3. Economic calculations showed that in addition to the social effect of using a dust collecting plant, an additional economic effect is possible, obtained by recovery and return of the collected dust to the technological process. The results of industrial tests confirmed its high efficiency. For the conditions of its work at the crushing and sorting factory of the Rodina mine, the expected economic effect is 5960 UAH per year.

1. Young C.A., Luttrell G.H. Separation Technologies for Minerals, Coal, and Earth Resources. Colorado: Society for Mining, Metallurgy, and Exploration, 2012. 756 p.
2. Peil O.E., Ruban A.V., Johansson B. Self-consistent supercell approach to alloys with local environment effects. Physical Review B. 2012. Vol. 85. Iss. 16. DOI: 10.1103/PhysRevB.85.165140
3. Hickel T., Grabowski B., Körmann F., Neugebauer J. Advancing density functional theory to finite temperatures: methods and applications in steel design. Journal of Physics: Condensed Matter. 2012. Vol. 24. Iss. 5. DOI: 10.1088/0953-8984/24/5/053202
4. Idczak R., Konieczny R., Chojcan J. Study of defects in Fe-Re and Fe-Mo alloys by the Mössbauer and positron annihilation spectroscopies. Solid State Communications. 2012. Vol. 152. Iss. 20. pp. 1924–1928. DOI: 10.1016/j.ssc.2012.07.027
5. Shapovalov V.A. Settled dust collection in processing shops of ore mining enterprises. Traditions and innovations of resource-saving technologies in mineral mining and processing. Multi-authored monograph. Petroșani: Universitas Publishing, 2019. pp. 266–278.
6. Govender D., Lelinski D., Traczyk F. Hybrid Energy FlotationTM — on the optimization of fine and coarse particle kinetics in a single row. Journal of the Southern African Institute of Mining and Metallurgy. 2013. Vol. 113. № 3. pp. 383–410.
7. Fayed H., Ragab S. Numerical Simulations of Two-Phase Flow in a Self-Aerated Flotation Machine and Kinetics Modeling. Minerals. 2015. Vol. 5. Iss. 2. pp. 164–188. DOI: 10.3390/min5020164
8. Andonev S.M., Filipev O.V. Dust and gas emissions from ferrous metallurgy enterprises. Moscow: Metallurgiya, 1973. 200 p. (In Russ.).
9. Lyubimov N.I. Reference guide on physical and mechanical parameters of rocks in the ore districts. Moscow: Nedra, 1978. 285 p. (In Russ.).
10. Chernenko L.M., Zavertajlo Y.A. To the issue of reducing the initial concentration of dust in the atmospheric air. Borba s opasnymi i vrednymi proizvodstvennymi faktorami v gornorudnoy promyshlennosti: sb. st. (Combating hazardous and harmful production factors in the mining industry: collection of articles). Moscow: Nedra, 1981. pp. 66–69. (In Russ.).
11. Guryn A.A., Muljavko V.Y., Ljashenko V.Y. Innovative Technology of Dust Collection at Ore-Dressing Plants. Bezopasnost Truda v Promyshlennosti = Occupational Safety in Industry. 2013. № 9. pp. 54–59. (In Russ.).
12. Shapovalov V.A. Study of the isokinetic movement of the air flow in the cavity of the dust collecting nozzle. Girnychyj visnyk = Mining Journal. 2015. Iss. 99. pp. 88–94. (In Ukr.).
13. Shapovalov V.A. Dust collection plant. Patent Ukrain. № 47118. А47L 5/00. Applied: July 30, 2001. Published: June 17, 2002. Bulletin № 6. (In Ukr.).
14. Mulyavko V.I., Oleynik T.A., Panova S.N., Kirichenko A.M., Lyashenko V.I. Increase of Efficiency of Dust Collection and Recovery of Iron-Bearing Components at the Ore-Dressing Enterprises. Bezopasnost Truda v Promyshlennosti = Occupational Safety in Industry. 2015. № 11. pp. 51–56. (In Russ.).
15. Bukhtiyarov I.V., Chebotarev A.G., Prokhorov V.A. Problems of the Promotion of Healthy Working Environment, Prevention of Occupational Diseases of the Personnel of a Mining and Smelting Complex. Gornaya promyshlennost = Russian Mining Industry. 2015. № 6 (124). pp. 14–17. (In Russ.).
16. Gurin A.A., Shapovalov V.A., Lyashenko V.I. Improving Safety of the Aspiration and Ventilation Systems by Cleaning Air Ducts. Bezopasnost Truda v Promyshlennosti = Occupational Safety in Industry. 2021. № 1. pp. 40–45. (In Russ.). DOI: 10.24000/0409-2961-2021-1-40-45
DOI: 10.24000/0409-2961-2022-2-50-57
Year: 2022
Issue num: February
Keywords : safety efficiency mining and processing enterprises premises cleaning of settled dust dust collecting plants
  • Gurin A.A.
    Gurin A.A.
    Dr. Sci. (Eng.), Prof., Krivoy Rog National University, Krivoy Rog, Ukraine
  • Shapovalov V.A.
    Shapovalov V.A.
    Cand. Sci. (Eng.), Assoc. Prof. Krivoy Rog National University, Krivoy Rog, Ukraine
  • Lapshin A.E.
    Lapshin A.E.
    Dr. Sci. (Eng.), Prof., Head of the Department Krivoy Rog National University, Krivoy Rog, Ukraine
  • Lyashenko V.I.
    Lyashenko V.I.
    Cand. Sci. (Eng.), Senior Research Assistant, Head of the Department GP «UkrNIPII promtekhnologii», Zheltuye Vody, Ukraine