Blast-furnace operation method
US4273577A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1979 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | Aug 22, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21B5/006
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention discloses a blast-furnace operation method which comprises selecting three factors, i.e. the oxygen volume in blast, the ore/coke and the reducibility of the burden materials as control factors from among these which participate in the variation of heat input and heat output of blast furnace, plotting values of these three factors obtained from the practical operation of efficient blast furnaces on a graph consisting of three parallel axes indicating the three factors, evaluating the conditions of furnace heat with reference to a balanced state of the three plotted factors and adjusting one or more of the three factors in the furnace so all will lie within a suitable range thereby balancing the furnace heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.