改造通风系统 提高经济效益

Optimized Ventilation System to Raise Economic Benefit

通过改造采区通风系统,减少通风网络长度,从而降低吨煤通风费用,增加采区抗灾能力,提高经济效益。

Ventilation system of mining area was optimized, and ventilation net was reduced. Accordingly the cost of each ton coal was reduced, and Capability to fight natural calamities was increased, economic benefit of mine was raised.