| 摘要 |
<p>Furnace gives progressive, economical heating with out local overheating, no wall debris falling on the heated objects. A tunnel ends in a combustion chamber with at least one burner and whose interior has a carrier grid on which the objects circulate. The tunnel is inclined to the horizontal so that the chamber is lower than the tunnel entry, and the grid is further from the roof, going towards the chamber. At the furnace entry the tunnel has a container for pieces which are moved from it by pushers. The tunnel and chamber have components of refractory non-oxidizing metal, of round shape nested in one another; the whole is thermally insulated outside. The tunnel communicates near its entry with a flue with controllable flow. The pushers' speed is controllable and can be made zero.</p> |
