| 摘要 |
FIELD: coal industry, possible use for upholding safe labor conditions in preparatory and cleaning faces. ^ SUBSTANCE: method includes feeding force liquid onto cutting crown of working tool of mining machine, spraying force liquid by cutting crown, forcing of force liquid through sprayer mounted on working tool. As force liquid, water solution of carbamide is used with concentration of 0,1-3% of mass. ^ EFFECT: neutralization of methane-coal environment due to decreased concentration of methane in mine atmosphere. ^ 4 ex, 1 tbl, 1 dwg |
