Parts of Cupola Furnace Part-1

Cupola Furnace:

The cupola may be a most generally used foundry furnace for melting ferrous metals and alloys. Sometimes, it's also used for melting non-ferrous metals and alloys. Cupola furnace is that the cheapest means for converting iron or rubbish into gray forged iron. The fuel used may be a good quality low sulphur coke. Anthracite coal or carbon briquettes can also be used.

Parts of Cupola Furnace:

Following are the main Parts of Cupola Furnace:

1. Foundation

2. Shell

3. Charging Door

4. Charging Platform

5. Air Blower

6. Volume Meter

7. Tuyeres

8. Tap Hole

9. Slag Hole

10. Chimney

 

 Parts of Cupola Furnace

1. Foundation:

The whole structure is erected on legs or steel columns. A drop door, which is formed of 1 piece, is hinged to a supporting leg. When the cupola is filled with charge, a prop support at rock bottom door is provided in order that door remains close and don't collapse thanks to the heavy weight of the charge. If the cupola isn't in use, the drop door allows for maintenance and repair work of the refractory.

2. Shell:

The shell is made of a plate of about 10 mm thick riveted or welded together which is internally lined with refractory fireclay bricks. The shell diameter varies from 1 to 2 meters with a height of about three to 5 times the diameter.

3. Charging Door:

Towards the highest of the furnace there's a gap called charging door is situated. The charging door is employed for feeding the charge containing metal, coke and flux, into the furnace. It is situated at the peak of about 3 to six m above the tuyers.

4. Charging Platform:

The charging platform is formed of strong low-carbon steel rods and plates. Usually, it's surrounding the cupola at the extent of about 0.3 m below rock bottom of the charging door.