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Coal mine main fan is one of the largest-power-consuming facilities among various electrical and mechanical equipments, its power consumption usually accounts for 20% ~ 30% of the total. If a few percentage points can be lowered in its energy consumption, energy efficiency will be very substantial. One main reason for the main fan's high power consumption is its overall low efficiency. After a long...
After running for a long time, fan impeller, inlet box, air inlet, and fan casing of mine ventilation main fan are corroded seriously. Thus is a threat to safe operation of main fans, which increases running resistance and reduces efficiency. Therefore, main fan corroded can't meet actual needs of field-work. China's scientific research institutes and related businesses have carried out a lot of research...
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