Device for opening the taphole of a shaft furnace
US5192489A · kind A · utility
6Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1990 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Jan 9, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21B7/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for opening the taphole of a shaft furnace by withdrawing a rod, held in the hardened sealing compound of the taphole, includes engaging a coupling device onto the end of the rod, gripping the rod using a clamp longitudinally displaceable by a hydraulic jack, pulling out the rod by a length corresponding to the stroke of the jack and repeating this operation until the rod is completely withdrawn from the taphole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.