Method of introducing a metalliferous feed in an ironmaking process
AssigneeTata Steel Ijmuiden B.V.
InventorsJohannes Leendert Teunis Hage, Hai Thong Ho, Frederic Adrien Blaffart, Xuan Wang
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Abstract
A method of introducing a metalliferous feed in an ironmaking process, the method including the steps of, pre-drying an iron containing sludge by drying means to an amount of 15 to 30% (w/w) moisture, mixing the pre-dried iron containing sludge with a binder material to obtain a granulate, having a particle size of less than 4 millimeter and drying the granulate to a maximum of 3% (w/w) moisture, thereby forming the metalliferous feed, wherein the metalliferous feed is subsequently injected into a cyclone part of a metallurgical vessel.
Claims3
A method of introducing a metalliferous feed in an ironmaking process, the method comprising the steps of,
- pre-drying an iron containing sludge comprising reduced iron in a pre-dryer to an amount of 15 to 30% (w/w) moisture,
- mixing the pre-dried iron containing sludge comprising reduced iron with an organic binder material to form a mixture and to obtain a granulate, the granulate having a particle size of less than 4 millimeter, and
- drying the granulate to a maximum of 3% (w/w) moisture,
- thereby forming the metalliferous feed,
- subsequently injecting a stream of the metalliferous feed into a cyclone part of a metallurgical vessel for iron-making by a pneumatic transport system,
- wherein the mixture consists of the pre-dried iron containing sludge with the 15 to 30% (w/w) moisture and the organic binder material, and
- wherein the granulate consists of the pre-dried iron containing sludge and the organic binder material and moisture.
Dependencies are inferred from the claim text.