... , the two burners are changed, air and fuel flow through the heat-accumulating body heated, and heated ... 10 minutes, transfer ladle about 30 minutes;Fuel Saving Rate>50%; Prolonged Service Life of Steel ... -size blower;Adjustable gas, air and fume flow; PLC control model;Installation mode can be designed ... C), and the combustor is provided with laminar flow high-speed burners with high gas outlet speed, ...