Industrial research on dust trapping efficiency by the fiber filter in aspiration shelters of reloading units

Authors:

О. O. Lapshyn, Dr. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0001-8844-6354, State Higher Educational Institution “Kryvyi Rih National University”, Kryvyi Rih, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

V. А. Shapovalov, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-5965-2869, State Higher Educational Institution “Kryvyi Rih National University”, Kryvyi Rih, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

M. V. Khudyk, Cand. Sc. (Tech.), orcid.org/0000-0002-1155-2535, State Higher Educational Institution “Kryvyi Rih National University”, Kryvyi Rih, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O. L. Shepel, Cand. Sc. (Tech.), orcid.org/0000-0003-4581-5441, State Higher Educational Institution “Kryvyi Rih National University”, Kryvyi Rih, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract:

Purpose. Upgrading the efficiency of dedusting at workplaces of the iron ore crushing and sorting plants by means of a fiber filter in aspiration shelters, reducing dust deposits in aspiration pipelines and load on filters of aspiration installations.

Methodology. Monitoring of the dustiness level in the working area of the crushing and sorting plant and determination of the dust trapping efficiency through a fiber filter were carried out on the base of the standardized technique methodical instructions 4436-87 “Dust gravimetric determination in the work area and in ventilation systems”. For this purpose, a dust trapping device consisting of a filter holder (allonge), a set of AFA filters from a hydrophobic material of the FPP grade, an aspirator and a flow meter was used.

Findings. Relatively high efficiency of dust trapping (coarse dust trapping in particular) with a fiber filter for aspiration shelters of iron ore reloading units at the crushing and sorting plant was confirmed. A fiber filter enables to reduce the dustiness of working zone air for machinists of the technological equipment by almost 45 %.

Originality. The laboratory-made dependence of the iron ore dust trapping efficiency of a fiber filter of the nylon and polyvinylchloride double curtains with different surface charges in the aspiration shelters of the reloading units on the distance between the curtains in the filter was demonstrated. Completed research shows the dust trapping efficiency of a fiber filter made of double nylon and polyvinylchloride curtains installed alternately at least 6 pcs in ­number.

Practical value. The design of the fiber filter for aspiration shelters was improved, whose use enables to catch iron ore dust directly in a shelter and reduce its settling in the aspiration air duct system. A technique for calculating the parameters of fiber filters for aspiration shelters of different constructions has been developed.

References.

1. Logachev, I.N., Logachev, K.I. and Averkova, O.A., 2013. Energy saving in aspiration. Moscow: Regulyarnaya i haoticheskaya dinamika.

2. Remus, R., Aguado-Monsolet, M.A., Roudier, S. and Sancho, L.D., 2013. Best Available Techniques (BAT) Reference Document for Iron and Steel Production. Luxembourg: Publications Office of the European Union.

3. Andrew B. Cecala, Andrew D. O’Brien, Joseph Schall, Jay F. Colinet, William R. Fox, Robert J. Franta, Jerry Joy, Wm. Randolph Reed, Patrick W. Reeser, John R. Rounds and Mark J. Schultz, 2012. Dust Control Handbook for Industrial Mineral Mining and Processing. Pittsburgh [pdf]. Available at: <https://www.cdc.gov/niosh/mining/userfiles/works/pdfs/2012-112.pdf> [Accessed 12 February 2017].

4. Goncharov, V.B., Khardikov, I.P. and Kharlamov, E.V., 2016. Analysis of shelters places of overload friable material. Nauchnyi almanakh, 15, pp. 411‒414.

5. Saparova, G.K., Medeubaev, N.A., Amanzholov, Zh.K., Balabas, L.Kh. and Komleva, E.V., 2015. Methods for determination of volumes of the air ejected from shelters at the overload of mountain mass. Vestnik VKGTU, 3, pp. 23‒27.

6. Popova, N.P. and Prigorodova, T.N., 2015. Problems of localization dust emissions from extended sources. Bezopasnost zhiznedeiatelnosti, 4, pp. 26‒30.

7. Dengub, T.V. and Khudik, N.V., 2014. Research on aerodynamic drag aspirating air flues by dusty deposits. Metallurgicheskaia i gornorudnaia promyshlennost, 4, pp. 115‒117.

8. Dengub, V.I., Shapovalov, V.A. and Hudyk, N.V., 2015. Determination of fiber filter dust collecting efficiency depending on particles distribution of industrial dust. Metallurgical and Mining Industry, 5, pp. 67‒71.

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