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Production of Iron
The blast furnace
| Term | Definition |
|---|---|
| Charge | What is put into the furnace |
| Limestone | Separates the waste and floats it to the top of the molten iron |
| Iron ore | The rock mined from the ground. The iron is melted out ot the ore. |
| Coke | The fuel used to create the heat in the furnace. |
| Double bell valve system. | To stop heat loss when loading the charge. |
| Gas pipe. | To extract the waste gases from the furnace. |
| Tuyere | The pipe which air is blasted through to rise the temperature in the furnace |
| Slag | Waste material produced. |
| Pig iron | The separated iron produced in the blast furnace |
| Fire brick. | Also known as refractory lining which stop heat loss through the walls of the furnace |
| Tapping spouts | Pipes which are at the bottom of the furnace for emptying. |
| The Hearth | The hottest part of the blast furnace. |