Retort furnace
A retort furnace is an industrial furnace that provides a defined atmosphere for the heat treatment of metals , for example .
construction
Retort furnaces are designed in a horizontal and vertical design. By equipping it with a gas-tight closed retort, the material to be treated can be heated without being influenced by atmospheric oxygen or burner exhaust gases; the properties of the material can also be changed by adding various gaseous or liquid substances. The heating is usually carried out electrically by means of resistance heating or gas burners .
A retort furnace usually consists of the following components:
- the furnace housing,
- the lining made of ceramic fibers or refractory material,
- the heating device (gas burner or electrical heating coils),
- the gas-tight retort made of heat-resistant steel,
- an appropriately designed retort lid,
- a circulation unit ,
- a supply station for the supply of protective gases and other gases / liquids ,
- possibly a vacuum pump to evacuate the retort