Experimental studies on polypropylene filter resistance according to DSTU EN 143-2002
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- Parent Category: Content №2 2018
- Category: Environmental Safety, Labour Protection
- Created on 16 May 2018
- Last Updated on 22 May 2018
- Published on 16 May 2018
- Written by Super User
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Authors:
Yu. I. Cheberiachko, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0001-7307-1553, National Mining University, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
N. A. Ikonnikova, Cand. Sc. (Tech.), orcid.org/0000-0003-0788-8738, National Mining University, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
I. M. Cheberiachko, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-6193-5729, National Mining University, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
A. A. Yurchenko, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-4998-2047, National Mining University, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract:
Purpose. To determine maximum dust holding capacity with the set dust-catching efficiency of two successively adjusted filtering elements made of polypropylene material when being dusted with coal dust.
Methodology. To define resistance of filters and their dust holding capacity, a gravimetric method was used according to DSTU EN 143-2002 requirements. The calculation methods consist of two stages. At the first stage the diameter of pre-filter fibres is calculated on the basis of maximum dust holding capacity for the set ultimate pressure and dust particle target size. At the same time, thickness and density of fibre packing of a filtering layer are selected by reference to conditions of the technological process of its formation while producing filtration fabric. At the second stage the radius of the main filter based on the set dust-catching efficiency is calculated.
Findings. It has been established that dust deposit on polypropylene filtering elements of respirators occurs in the front layer.It has been defined that dust holding capacity and protective power time of respirators can be increased while filtering coal dust with a system of two successively adjusted filtering elements with the following parameters: packing density of 55 and 27 g/cm2; a fibre radius of 2‒4 and 6‒10 microns and a thickness of a filtering layer of 4 and 3 mm, respectively. This allowed creating an anti-aerosol two-layer polypropylene filter RPA-TD 1.2 which meets the DSTU EN 143-2002 requirements and can be used for protecting people’s respiratory organs at the site of intensive coal dusting including stoping face, coal transloading, dressing plants and others.
Originality. Dust holding capacity of filters depends on generation of self-filtering dust layer, which can develop on the work surface at speeds below 0.04 m/s.
Practical value. Rational parameters of the two successively adjusted filtering elements of polypropylene fabrics were defined with the protective power time of the proposed system increased by 25 % compared to the used filtering elements for RPA respirators.
References.
1. Vytryshchak, S.V., Savyna, O.L., Klymenko, K.V., Haidash, Y.A. and Kurchanova, V.S., 2012. Influence of the production factors of coal mines on the state of professional health of miners. Ukrainian Journal of Clinical and Laboratory Medicine, 7, pp. 194‒198.
2. Shevchenko, V.H., 2016. Analysis of biomechanical characteristics of miners during underground coal mining. Mining of mineral deposits, 10(4), pp. 83‒87. DOI:10.15407/mining10.04.083.
3. Golynko, V.I., Cheberiachko, Yu.I., Cheberiachko, S.I. and Naumov, N.N., 2016. Respiratory protective equipment for mining workers, Metallurgical and Mining industry, 4, pp. 111‒116.
4. Kolesnik, V.E., Cheberiachko, S.I. and Cheberiachko, Yu.І., 2014. Studies of air resistance dust mask during their operation in mining enterprises,Metallurgical and Mining industry, 4, pp. 118–123.
5. Usachev, A.P., Shuraits, A.L. and Gustov, S.V., 2012. Mathematical model development for investigation of the pressure drop on the net-type filtering element clogged up by solids. Problemy sbora, podgotovki i transporta nefti i nefteproduktov, 2(88), pp. 86‒95.
6. Grigorieva, O.V. and Zaripov, Sh.H., 2012. Inertial sedimentation of suspended particles in flow past a porous cylinder, Nauka i innovatsii v reshenii aktual’nykh problem goroda. Izvestiya vysshikh uchebnykh zavedenii. Aviatsionnaya Tekhnika, 1, pp. 17‒20.
7. Ogorodnikov, B.I. and Khan, V.E., 2013. Impact of haze and fog on filter characteristics in the process of monitoring radioactive aerosol. Problems of nuclear power plants’ safety and of Chornobyl, 38, pp. 787‒791.
8. Kalinovskii, A.K. and Ogorodnikov, B.I., 2013. Investigation of the dynamics of the resistance of filtering materials in the selection of radioactive aerosols near the object “Shelter”. Problems of nuclear power plants’ safety and of Chornobyl, 20, pp. 104‒114.
9. Holinko, V., Cheberiachko, S., Yavorska, O. and Radchuk, D., 2016. Study of protective properties of half-masks respirators used by miners. Mining of Mineral Deposits, 10(4), рр. 29‒36. DOI:10.15407/mining10.04.029.
10. Mirgaliieva, O.S. and Ziganshin, M.G., 2013. Modeling of filtration of a two-phase aerosol with ash of energy coals and ways of taking into account electrostatic forces, Izvestiya KGASU, 3(25), pp. 73‒79.
11. Menzelintseva, N.V. and Marinina, O.N., 2011. Research on protective properties of respirators type “snezhok GP-V” at carrying out welding works. Vestnik Volgogradskogo gosudarstvennogo arhitekturno-stroitelnogo universiteta. Series: “Stroitelstvo i Arhitectura”, 24(43), pp. 77‒81.
