Show electrification OF UTAH MINES the electrification of mines has extended into every important district in the state pumping air compressing for drilling fan operation for ventilation hoisting shop operations including drill sharpening and tempering in electric furnaces are among the outstanding applications of electricity in this field many mine mine managements appreciate that it is more economical to bring power to their mines over copper lines than to haul in coal for steam operation or to operate privately owned steam generating plants at the mine the item of suitable water for steam production is also an important factor Z fill I 1 44 IN 40 A typical installation the photograph here shows a compressor installation ir in the grand central mine at mammoth in the tintic gintic district the electrification of this mine involved the conversion of old steam equipment into electric in many cases engineers both assert after an inspection of mine equipment on the surface and underground that conversion is too foo costly or too difficult to carry out but in every case where the details have been carefully worked out the trick has been turned to the entire satisfaction of operating officials the te grand central has much modern electrical equipment in its workings that pictured being a horsepower 0 ot f motor 2200 volts direct connected to a cor compressor 2500 cubic feet free air capacity per minute the mine m ine also ot of operates electrically what was before its conver conversion siony one the die largest stem hoists in Nm america |