Hatch supplies engineering project and construction business consulting and operational services to the mining metallurgical energy and infrastructure industries.
Lauri Holappa in Treatise on Process Metallurgy: Industrial Processes 2014. 18.104.22.168.2 Pellets22.214.171.124.2.1 Pelletizing Process. Similar to sintering pelletizing is another widely used process to agglomerate the iron ore. Sinter plants are usually lo ed near the blast furnace plant but pelletizing plants are often lo ed near the mining site.
A blast furnace is shaped like a large round tower. It is 35 metres tall and has a working volume of 1000-5500 cubic metres. The most important thing to remember about a blast furnace is that once it is fired up it must keep working constantly because the pig iron smelting process cannot be stopped.
A blast furnace is a very efficient way to make liquid iron. Unfortunately most of the energy for reduction comes from coal-based sources. Hatch and Alter NRG have been working to improve on an old idea. During the 1980s work conducted on electrically based plasma torches to superheat blast furnace hot-blast air was halted due to concerns
The pelletization process is very widely used particularly when burden materials must be shipped great distances between the mine and the blast furnace because fired pellets are durable and easy to handle. Pellets also perform very well in the blast furnace with good bed permeability and reducibility.
Iron Ore Processing for the Blast Furnace. The crude taconite is now roughly the size of a football or smaller grinding mills recycled while the rest is lost through evaporation Each primary mill contains several 4 steel balls that grind the ore as the mills turn the ore is reduced to 34 or less it moves out of the mill in a slurry solution
Steel is predominantly 70% produced in blast furnaces by reducing iron oxide using coking coal while 30% is produced from scrap and iron oxide reduction using electric-arc furnaces and refining
The Future of Met Coke to 2025. With the changing landscape the impact of new technologies on the met coke market is examined throughout this report. The blast furnace sector is taking a greater rather than a smaller share of the global steel market although the alternative electric furnace sector is increasing in importance in the developed