... mediumSteam or compressed air (m/min)Blowing gun movement speed1.75 (r.p.m)Blowing gun speed17.5 (m) Blowing radius~ ... furnace plate weight. Torreour company also produce :Economizer, air preheater, coal conveyor, slag removal machine, water treatment equipment ... , exhauster, draught fan ,air blower,feed water pump, valve instrument, crusher, chimney, electric ...