Extraction device for a tuyere part
US11021764B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 2018 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Aug 2, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Extraction device for extracting a tuyere part, in particular a tuyere or a tuyere cooler, from a shaft furnace, the device including a supporting frame with positioning elements configured to position the device against a furnace wall, a carriage supported by the supporting frame and movable in a direction radial to the furnace wall, an extraction rod having a first end attached to the carriage and a second end for connecting to the tuyere part, where the first end of the extraction rod had a stopper, the device further including a percussion system acting on the stopper of the extraction rod in a direction away from the furnace wall, and a pretensioning mechanism on the supporting frame configured to apply a load to the carriage, in a direction away from the furnace wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.