Hood-type furnace within a protective hood with the heat emission appliance, in particular fed from a furnace space external energy source, for delivering heat to the annealing gas

摘要

Furnace (100) for heat treatment of annealing material (102), wherein said furnace (100) a closable first furnace chamber (104) for receiving and for heat treatment of annealing material (102) by means of thermal interacting of the annealing charge (102) with heatable or coolable the first the annealing gas (112) in the first furnace chamber (104) is formed, and a removable first protective hood (120), by means of which the first furnace chamber (104) is closable. Furthermore, an at least partially in the interior of the by means of the first protective hood (120) closed first furnace chamber (104) located in the first heat exchange apparatus (108) for exchanging heat with the first the annealing gas (112) within the first protective hood (120) is provided. The heat exchange apparatus (108) is offset with respect to a first the annealing gas fan (130) for driving of the annealing gas arranged in such a way that in each operating state of the furnace (100) the of the first the annealing gas fan (130) driven the annealing gas the heat exchange apparatus (100) are subjected to the flow.