FIELD: mining.
SUBSTANCE: invention relates to rock dusting of coal mine surfaces. Proposed process comprises application of stone dust particles processed by cationic and/or zwitter-ion surfactant on coal mine surfaces. Note here that said composition can contain the mix of cation and zwitter-ion surfactant wherein zwitter-ion surfactant fraction can make at least 60% or more, preferably, at least 65% of the mix. Besides, invention covers the liquid composition for processing of stone dust particles and coal mine surface rock dusting and device to this end.
EFFECT: decreased formation of coal-air mix, suppression of flame propagation in coal mine by eg seismic waves due to dispersion of stone dust.
20 cl, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| ROCK DUSTING DEVICE | 2011 |
|
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|
RU2454991C2 |
