Furnace tapping apparatus
US3973761A · kind A · utility
9Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1974 |
| Grant date | Aug 10, 1976 |
| Priority date | — |
| Expiry date | May 9, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21B7/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method and an apparatus for stopping the flow of metal from the taphole of a furnace. The method comprises the step of blowing air into the taphole with sufficient pressure to reverse the flow of the molten metal, and then reducing the pressure to a value sufficient to hold the metal in the furnace. The apparatus comprises a pipe adapted to be inserted into the taphole and of sufficient dimension to seal the taphole, and means for blowing air into the pipe initially at a predetermined pressure so as to reverse the flow of the molten metal in the taphole and then at a reduced pressure sufficient to hold the metal in the furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.