| 摘要 |
Method for dust suppression in coal mine that includes supply to breakage working of mine, by means of centrifugal sprinklers, of fine-disperse (FD) and coarse-disperse (CD) sprinkling fluid, at that CD liquid is supplied near the end of the breakage working in direction of motion of ventilation flow. To increase effectiveness of dust suppression, decrease of consumption of sprinkling liquid and for prevention of removal of coagulated dust first process of dust suppression is carried out just near source of dust suppression through formation of spatially positioned curtain of FD liquid drops round it, that if formed as well at the beginning and at the end of mine working in direction of motion of ventilation flow, then one corms first protection curtain of CD liquid before source of dust suppression and curtain at the beginning of mine working, and the second protection curtain of CD liquid drops is formed behind the source of dust formation and curtain near the end of mine working, at that protective curtains formed of CD liquid drops near source of dust formation in section transverse with respect to direction of motion of ventilation jet by its area covers area of curtain of drops of CD liquid in that section.
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