Metallurgical lance deskuller
AssigneeBethlehem Steel Corporation
InventorRichard J. Reinbold
Life of this patent
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Abstract
An apparatus for removing the skull from a metallurgical lance having positioning means mounted on a supporting member, a main arm pivotally fixed to the positioning means, two jaw arms pivotally attached to the main arm, activating means for providing movement to each jaw arm and a guide roller and scraper blade attached to each jaw arm. The apparatus may be enclosed in a housing when not in use. Also electro-pneumatic timing circuitry for automatically operating the apparatus.
Claims12
In combination with a metallurgical lance and a metallurgical furnace an apparatus for removing a skull adhering to the metallurgical lance comprising
- (a) positioning means secured to a supporting member,
- (b) a main arm fixed to the positioning means,
- (c) two jaw arms pivotally attached to the main arm,
- (d) activating means mounted on the main arm for providing movement to each jaw arm to close the jaw arms about the lance,
- (e) a guide roller rotatably mounted on each jaw arm in a position such that the guide rollers contact the surface of the lance when the jaw arms close about the lance, and
- (f) a scraper blade attached to each jaw arm in a position on the jaw arms relative to the roller such that the scraper blade is spaced from the surface of the lance when the roller contacts the surface of the lance.
In combination with a metallurgical lance and metallurgical furnace an apparatus for removing a skull adhereing to the metallurgical lance comprising
- (a) a main arm,
- (b) two jaw arms pivotally attached to the main arm,
- (c) activating means mounted on the main arm for providing movement to each jaw arm to close the jaw arms about the lance,
- (d) a guide roller rotatably mounted on each jaw arm in a position such that the guide rollers contact the surface of the lance when the jaw arms close about the lance, and
- (e) a scraper blade attached to each jaw arm in a position on the jaw arm relative to the guide roller such that the scraper blade is spaced from the surface of the lance when the roller contacts the surface of the lance.
In combination with a metallurgical lance and metallurgical furnace an apparatus for removing a skull from the metallurgical lance comprising
- (a) two arms,
- (b) a guide roller rotatably mounted on each arm,
- (c) means attached to the arms for imparting coacting individual movement to the arms to bring the guide rollers into contact with the surface of the lance, and
- (d) a scraper blade attached to each arm in a position relative to the guide roller such that the scraper blades are in a position transversely surrounding the lance and spaced from the surface of the lance when the rollers contact the lance.
A metallurgical lance deskulling apparatus for removing skull deposits adhering to a metallurgical lance comprising:
- (a) opposed scraper blades adapted for movement toward and away from the metallurgical lance, and
- (b) guide rollers operatively connected to the scraper blades and arranged to contact the surface of the lance while maintaining the scraper blades a predetermined distance from the surface of the lance which distance is less than the thickness of the skull deposits on the lance.
Dependencies are inferred from the claim text.