SAFETY
Original Paper
UDC 622.807© A.A. Rybichev, B.P. Pernebek, 2023
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2023, № 12, pp. 60-63
DOI: http://dx.doi.org/10.18796/0041-5790-2023-12-60-63
Title
EVALUATION OF THE EFFICIENCY OF DUST SUPPRESSION WITH THE USE OF WET SOLUTIONS
Authors
Rybichev A.A.1, Pernebek B.P.1
1National University of Science and Technology “MISIS” (NUST “MISIS”), Moscow, 119049, Russian Federation
Authors Information
Rybichev A.A., Postgraduatestudent, e-mail: rybichev@yandex.ru
Pernebek B.P., Postgraduatestudent, e-mail: pbektur@mail.ru
Abstract
The urgency of the problem is substantiated by the improvement of the system of dust and explosion safety of coal mines by determining the optimal concentrations of the wetting agent when it is used to moisten coal seams. The recommended concentrations of wetting agents in the solution are 0,05–0,15%.Three series of experiments were carried out to find the optimal concentration of the wetting agent in order to reduce the dust-forming ability of coal. In the first series of experiments, the critical concentration of micellization of the wetting agent "Neolas" was determined; in the second, the concentration of the wetting agent was determined, at which, during the destruction of the treated coal, there was the smallest yield of fine dust fractions, and the largest yield of large dust particles; in the third, the dust-forming capacity of coal was calculated and the optimal concentration of the wetting agent was determined. It has been established that the dust-forming ability of coal has a minimum value in the range of wetting agent concentrations of 0,2–0,3%.
Keywords
Coal, Coal dust, Critical micelle concentration, Dust-forming capacity of coal, Wetting agent.
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For citation
Rybichev A.A. & Pernebek B.P. Evaluation of the efficiency of dust suppression with the use of wet solutions. Ugol’, 2023, (12), pp. 60-63. (In Russ.). DOI: 10.18796/0041-5790-2023-12-60-63.
Paper info
Received> September 4, 2023
Reviewed November 10, 2023
Accepted November 27, 2023
