| 摘要 |
A direct current electric arc furnace hearth connection of the liquid-solid type is initially installed as a metal billet in an opening in a furnace construction, with water-containing refractory material rammed around the billet. To accelerate drying of the rammed water-containing or moist refractory forming a lining around the billet, metal channels are fixed to the sides of the billet to form longitudinally extending passages interjoined at one end of the billet by one or more transverse holes formed through the billet, so that a U-shaped overall passage is formed. A gas flame is burned at one end of the passage and the resulting hot gases are sucked through the U-shaped passage heating the billet to dry the rammed refractory material. |
