Process for supplying a blast furnace with air enriched in oxygen, and corresponding installation for the reduction of iron ore
US5244489A · kind A · utility
20Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1992 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Jun 9, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2245/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is produced by an air distillation apparatus (4) a desired fraction of air from the stream of air leaving at least one blower (3) of the blast furnace, and there is sent to the blast furnace the oxygen produced by this distillation apparatus. The distillation apparatus comprises an air/liquid oxygen mixing column which operates at about 1 bar above the delivery pressure of the blower (3) and which directly produces the oxygen for enriching the air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.