What are the two furnaces used to produce cast iron?
Various types of furnaces have been used for cast iron melting. In terms of tonnage, the primary melting methods used by iron casting facilities are cupola and induction furnaces. This article describes the operation and control principles of cupola furnace.
Which furnace is used to get pig iron from iron ore?
Blast furnaces
Blast furnaces are used to produce pig iron from iron ore for subsequent processing into steel, and they are also employed in processing lead, copper, and other metals.
Why is blast furnace bad for the environment?
Carbon dioxide emissions derive, above all, from iron ore reduction that takes place in blast furnaces and sponge iron plants; emissions consequently follow the production fluctuations of ore-based steel. Emissions also come from the use of fossil energy in e.g. reheating and heat treatment furnaces.
Which is the name of furnace to obtain cast iron?
cupola furnace, in steelmaking, a vertical cylindrical furnace used for melting iron either for casting or for charging in other furnaces.
What is the name of furnace to obtain cast iron?
How is pig iron manufactured by Electric reduction furnace?
Pig iron is the product of smelting iron ore (also ilmenite) with a high-carbon fuel and reductant such as coke, usually with limestone as a flux. Charcoal and anthracite are also used as fuel and reductant. Pig iron is produced by smelting or iron ore in blast furnaces or by smelting ilmenite in electric furnaces.
What is the environmental impact of iron?
The mining of iron ore is highly energy intensive and causes air pollution in the form of nitrous oxide, carbon dioxide, carbon monoxide, and sulfur dioxide from diesel generators, trucks and other equipment. The mining of iron ore also causes water pollution of heavy metals and acid that drains from the mines.
How does iron and steel industry pollute the environment?
The steel industry releases large amounts of pollutants into the air during all its processes—be it while handling raw material, producing iron and steel or disposing of solid waste. The main pollutants are particulate matter, oxides of sulphur and nitrogen and carbon monoxide.