Blast furnace cooling method to increase steel production and reduce cost in a basic oxygen furnace
US8535410B1 · kind B1 · utility
0Cited by
3References
23Claims
0Family size
Inventor
Key dates
| Filing date | Apr 24, 2012 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Apr 24, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is directed to a process for injecting iron oxide particles into a blast furnace through a pulverized coal injection (PCI) system, the injected particles causing a reduction in hot metal temperature, the injection process continuing and maintaining a target cooled hot metal temperature, the target hot metal tapped to provide a cooled hot metal charge in a BOF converter, the cooled hot metal charge decreasing BOF heat time and increasing BOF steel production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.