Steel ladle drainage method
US12005495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2021 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | Nov 5, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D41/48
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A steel ladle drainage method is achieved by using a steel ladle structure. Vacuum interlayers are provided within an upper nozzle, an upper fixed plate, a lower fixed plate and a sliding plate of the steel ladle structure respectively. In the steel ladle drainage method provided by the present invention, a metal drainage agent is used to replace the drainage sand in the prior art, the metal drainage agent is melted by the liquid steel and deposited in the upper nozzle, the sliding plate with the vacuum interlayer and the upper nozzle with the vacuum interlayer have the insulation effect on the melted metal drainage agent. Moreover, through moving the sliding plate, the two pouring holes of the upper and lower fixed plates are connected with each other, the metal drainage agent enters the tundish through the pouring holes and the lower nozzle under the action of gravity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.