Method for iron making by continuous smelting reduction
US12378614B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 2, 2021 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Jul 27, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/143
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for iron making by continuous smelting reduction, including: (1) mixing iron-containing mineral powder with a reducing agent and a slag former to obtain mixed powder materials; (2) placing furnace startup materials in a reducing furnace, and heating the furnace startup materials to be in a molten state to form a furnace startup molten pool; (3) conveying the mixed powder materials into the reducing furnace, and blowing oxidizing combustibles into the reducing furnace for heating; (4) performing stirring by a stirring paddle to form a molten slag layer and a molten iron layer; and performing stirring so that a vortex is formed in the molten slag layer; and (5) adjusting a position of the stirring paddle, a stirring speed and a conveying quantity of the mixed powder materials to enable the molten iron and the reduced molten slag to be respectively continuously discharged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.