The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, coke and limestone are dumped into the top, and preheated air is blown into the bottom. The raw materials require 6 to 8 hours to descend to the bottom of the furnace where they become the final product of liquid slag and liquid iron.
china
1650 Celsius
grey with red stripes
Iron is refined by a blast furnace. A furnace is filled with iron ore, coke (which is charcoal made from coal) and limestone. Huge amounts of air are blasted into the furnace, the calcium from the limestone combines with silicates (which are minerals containing silicon and oxygen) to form slag (which is run off ore from the furnace). A layer of liquid iron collects under the slag, at the bottom of the furnace. The liquid iron is periodically let out to cool. Charlie
iron is collected from blast furnace by drilling the taphole.Taphole is a hole drill and plug after cycle of time located in blast furnace bottom.
the blast furnace got its name , because its bottom which is called a furnace blows hot air to go up.
The blast furnace maintains heat through the combustion of coke (a type of coal) with hot air blown in at the bottom. This creates a high temperature that allows the iron ore to melt and collect at the bottom of the furnace. The heat is further sustained by the chemical reactions occurring within the furnace.
Molten iron sinks to the bottom of the blast furnace due to its higher density compared to the other materials. It is tapped from the furnace and cast into molds to solidify into various shapes for further processing.
Blast furnace = Hochofen
A blast furnace is used to extract iron from its ore.
Its because air is forced into the furnace to increase temperature. Steve.
Govăjdia Blast Furnace was created in 1810.
I would imagine so that it provides a wider base of support for stability and also to create vaccuum to generate more heat. An opening too large will end up with turbulence rather than vaccuum. Any replies to szymkow@bigpond.com
A blast furnace is a forge in which ore is smelted to meal, being intensified by a blast of hot air.
through the top of the blast furnace
'i' blast furnace of tata steel, jamshedpur,india