Kukhar V.Yu. Laboratory research of fine filtering of mine water of Zaporizhskyi iron-ore plant
- Деталі
- Батьківська категорія: Геотехнічна механіка, 2020
- Категорія: Геотехнічна механіка, 2020, № 150
Geoteh. meh. 2020, 150, 136-145
https://doi.org/10.15407/geotm2020.150.136
LABORATORY RESEARCH OF FINE FILTERING OF MINE WATER OF ZAPORIZHSKYI IRON-ORE PLANT
1Kukhar V.Yu.
1National Technical University Dnipro Polytechnic
UDC622.531: 628.196
Language: Russian
Annotation.
The article is devoted to the first stage of solving the problem of determining the possibility of using automated mesh filters for clarifying mine water in the Zaporizhskyy Iron-Ore Plant. Subject of the study was technological parameters of the filter application - the cell size of the mesh filter element, relationship between the amount of trapped contaminants and the pressure drop across the filter element, time period during which maximum amount of contaminants is accumulated on the filter. Purpose of the work was to establish dependence of the pressure drop across the filter element on the mass concentration of contaminant particles during their "salvo" flowing into the filtered water. During the research, the following tasks were solved: the possibility to trap contaminant particles of the mine water in the Zaporizhskyy Iron-Ore Plant by the filter mesh was experimentally confirmed; mass concentration of contaminants in the filtered water was established at their “salvo” feeding to the filtration, during which the filter element becomes critically contaminated; time period was determined, during which filter element is critically polluted when contaminants are "salvo" fed for filtration. The experimental work was carried out by using express filter bench with the size of mesh cell of 270 mcm. As a result of the experiment, technical feasibility of efficient trapping of contaminant particles in the mine water of Zaporizhskyy Iron-Ore Plant by the filtering mesh with cell size 270 mcm was experimentally proved; dominant particle size was less than 50 microns. A nonlinear increasing dependence was established between the pressure drop across the contaminated filter element and initial amount of the contaminants in the filtered water. It was determined that with a "salvo" supply of contaminants of mine water in Zaporizhskyy Iron-Ore Plant in amount of 1.18 g and filtration rate of 7 cm/s, a specific load of pollution is formed in terms of filter element 0.45 kg/m2 and maximum pressure drop 1 atm.
The findings can be used for designing or selecting filters for fine filtration of mine water or processing water from mining and processing enterprises. For reasonable choice of filter and its technological parameters for filtering mine water in Zaporizhskyy Iron-Ore Plant it is necessary to continue research with filtering water with evenly distributed contaminants along the filter.
Keywords:
mine water of Zaporizhskyy Iron-Ore Plant, fine filtering, mesh filter element, maximum pressure drop.
References
1. Belikov, S.E (2007), Vodopodgotovka: Spravochnik [Water treatment: Reference book], Aqua-Therm, Moscow, RU.
2. Frog, B.N. and Levchenko, A.P. (1996), Vodopodgotovka [Water treatment], Moscow State University A publisher, Moscow, RU.
3. Pupkov, V.S. (2008), "Current state and development trends of filters with countercurrent regeneration". Bulletin of scientific works of Donbas State Technical University, no. 27, рр. 234-241.
4. Kukhar, V.Yu. and Kuz'minskiy V.P. (2009), "On the need to study the hydraulic operating modes of industrial water filters". Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no.12, рр. 46–50
About the author
Kukhar Viktor Yuriiovych, Candidate of Technical Sciences (Ph.D.), Associate Professor sn the Department of Engineering and Design in Machinery Industry of National Technical University “Dnipro Polytechnic” (NTU «DP»), Dnipro, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її. .