Extraction device for a tuyere part
AssigneePaul Wurth S.A.
InventorClaude Thinnes
Life of this patent
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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.
Claims15
An extraction device for extracting a tuyere part from a shaft furnace, the device comprising:
- a supporting frame with a positioning element configured to position the extraction device against a furnace wall;
- a carriage supported by the supporting frame, said carriage being 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, wherein the first end of the extraction rod comprises a stopper;
- a percussion system configured to act on the stopper of the extraction rod in a direction away from the furnace wall in order to inflict a sharp blow on the stopper;
- and
- a pretensioning mechanism on said supporting frame, the pretensioning mechanism being configured to apply a substantially constant load to the carriage, in a direction away from the furnace wall.
Dependencies are inferred from the claim text.