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US 11,525,167 B2Granted
Operating method of an iron making installation and associated operating installation
AssigneeArcelorMittal
InventorsJoris Geeroms, Kurt Spelier, Stefaan Van De Casteele
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Abstract
A method of operating an iron making installation is provided, in which waste material is dried using a drying gas, the drying gas including an exhaust gas from a sinter plant, and the dried material is roasted a roasting gas, so as to produce coal and a roasting exhaust gas. An associated installation is also provided.
Claims32
A method of operating of an iron making installation, the method comprising the steps of:
- drying waste material using a drying gas, the drying gas comprising an exhaust gas from a sinter plant,
- roasting the dried waste material using a roasting gas, so as to produce coal and a roasting exhaust gas,
- using the coal as a raw material in an iron making process, and
- recycling at least a part of the roasting exhaust gas to the sinter plant.
1 more element
A method of operating of an iron making installation, the method comprising the steps of:
- drying waste material using a drying gas, the drying gas comprising an exhaust gas from a sinter plant and the exhaust gas from the sinter plant comprises at least 50% of the exhaust gas, roasting the dried waste material using a roasting gas, so as to produce coal and a roasting exhaust gas, and using the coal as a raw material in an iron making process.
Dependencies are inferred from the claim text.