In the extraction of iron, hot air is introduced into the blast furnace through?
Answer Details
In the extraction of iron, hot air is introduced into the blast furnace through tuyeres.
Tuyeres are nozzles that are located at the bottom of the blast furnace, and they are used to blow hot air into the furnace. The hot air helps to burn the coke (a fuel made from coal) which provides the heat needed to melt the iron ore. The air also helps to remove the waste gases that are produced during the reaction, allowing the iron to be extracted more efficiently.