Good ventilation of mine ventilation resistance reduction me
Date:2013-11-25 Hits:
The mine ventilation is good, mine ventilation resistance many, reduce ventilation resistance are:
1) tunnel neat shape, as a nearly circular tunnel;
2) brush section;
3) tunnel construction as far as possible to reduce the straight, bending, section two tunnels of different connection to smooth, gradual change section, reduce the airflow impact and vortex;
4) without cleaning up the roadway in mine, mine timber, rubble or other unwanted material to reduce local resistance. Concrete or stone arch tunnel wall to be smooth, with wood frame or U type metal stent to brake good help, crushed to timely treatment.
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