Gorobei M.S. Theoretical research of the suppression process of carbon-containing dust in gravitational and electrostatic fields

Details
Parent Category: Geo-Technical Mechanics, 2018
Category: Geo-Technical Mechanics, 2018, Issue 143

Geoteh. meh., 2018, 143, 110-117

https://doi.org/10.15407/geotm2018.143.110

THEORETICAL RESEARCH OF THE SUPPRESSION PROCESS OF CARBON-CONTAINING DUST IN GRAVITATIONAL AND ELECTROSTATIC FIELDS

1Gorobei M.S.

1State Environmental Academy of Postgraduate Education and Management

UDC504.054; 622.807.2

Languige: Ukrainian

Annotation.

 As a result of the functioning of ventilation systems in the coal mining and coal processing enterprises, significant volumes of carbon dust deposits are emitted into the atmosphere. Coarse dust emitted into the atmosphere intensively settles within the sanitary protection zones of the mines. Fine dust is carried outside the sanitary protection zone of mine polluting the environment at a distance of up to 3500 m from the coal mine. Air pollution and changing environmental parameters are slow, cumulative effect of adverse effects, which manifests itself through the decades. This leads to disruption ecosystems and threatens human health. Carbon-containing dust is dangerous as itself and as a transporter to the human and animal organism of harmful and poisonous substances that settle on fine particles of coal dust. The environmental risk of carbon-containing dust emissions necessitates measures for dedusting the mine ventilation streams and reduce dust emissions to the atmosphere. The article presents the results of research of the dust suppression process of airborne carbon-containing dust using sputtered fine water, taking into account the action of gravitational and static fields. As initial data in the work were used the results of Makeevka Research Institute, obtained during the experiments on hydropower at the laboratory stand in an electrostatic field. It was found that in the active area of the nozzle the effectiveness of dust suppression is determined by the magnitude of the velocity vector of the droplets of liquid.  Outside the core, this efficiency is determined by the drop rate and the electrical forces. It is shown that the results of accounts well coincide with experimental data. The results obtained reveal the mechanism of interaction of the sprayed liquid with carbon-containing dust in gravity and electrostatic fields and can be used in the development of new effective means of dust suppression.

Keywords:

carbon dust, gravity fields, electrostatic fields, dust suppression, turbulent mode 

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About the author

Gorobeі Maryna Serhiivna,  Master of Science, Senior Researcher at Scientific Park Chornobyl of State Ecological Academy of Postgraduate Education and Management, Kyiv, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.