Apparatus for changing tuyeres on a blast furnace
US4279408A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1979 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Feb 28, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21B7/166
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Apparatus for changing tuyere and tuyere stock assemblies of a blast furnace in accordance with one aspect of the invention includes support rail means extending around the furnace and fixed a selected distance above the level of the tuyeres of the furnace. A primary carriage is arranged for travel along said rail means and first motor means are provided for effecting such travel. A guide frame is connected to the primary carriage and depends downwardly therefrom. The guide frame is connected for rotation about a vertical axis relative to the primary carriage. A second motor means is provided for effecting this relative rotation about the vertical axis. A carriage support frame is associated with the guide frame and is adapted to travel upwardly and downwardly along the latter in a vertical path. Third motor means are connected between the carriage support frame and the main support carriage to effect the upward and downward movement of the carriage support frame. The carriage support frame includes an elongated horizontal section defining a path of travel for a tuyere stock support carriage. A tuyere stock support carriage is disposed on the carriage support frame for travel along…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.