Effect of operational parameters of spraying on dust suppression rate in roadways

Authors: Kurnosov I Y

Air-borne coal dust is a serious threat to both coal mine personnel and equipment. There is a variety of air dust reduction activities (liquid spraying, air filtering, oil/water/grill/paper trapping of dust, centrifugal dust collection or use of dust-catching chambers), but they are not always effective, especially in solving specific tasks (short-time dust removal). A possible solution to this end can be the pulse ventilation, which is used to remove methane from mine air, in combination with liquid spraying. This article describes the lab-scale tests of dust suppression by spraying. Coal mines use liquid spraying, and this approach is therefore tested on a laboratory scale. The deposition time of water aerosol is determined. For estimating efficiency of dust suppression and to control water aerosol concentrations, the time functions of average concentrations of dust/water and water aerosols are obtained and described by formulas.

Keywords: modeling, coal dust, pulse ventilation, liquid spraying, mass transfer, suppression test, water aerosol, dust/water aerosol.
For citation:

Kurnosov I. Y. Effect of operational parameters of spraying on dust suppression rate in roadways. MIAB. Mining Inf. Anal. Bull. 2023;(3):150-162. [In Russ]. DOI: 10.25018/0236_1493_2023_3_0_150.

Issue number: 3
Year: 2023
Page number: 150-162
ISBN: 0236-1493
UDK: 622.807
DOI: 10.25018/0236_1493_2023_3_0_150
Article receipt date: 16.12.2022
Date of review receipt: 21.01.2023
Date of the editorial board′s decision on the article′s publishing: 10.02.2023
About authors:

I.Y. Kurnosov, Graduate Student, Assistant, National University of Science and Technology «MISiS», 119049, Moscow, Russia, e-mail: kurnosovilya@yandex.ru, ORCID ID: 0000-0002-7618-6839.


For contacts:

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