Implements or apparatus for applying pushing or pulling force – Fluid pressure – Vehicle attached
Reexamination Certificate
1998-10-15
2002-09-17
Bryant, David P. (Department: 3726)
Implements or apparatus for applying pushing or pulling force
Fluid pressure
Vehicle attached
C029S402010, C029S890031, C052S749150, C072S392000
Reexamination Certificate
active
06450480
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a bake carbon flue straightener for use in straightening the flue wall of an anode baking furnace. A problem which can occur with anode baking furnaces is that during operation the flue wall can exhibit bending or bowing due to external forces.
U.S. Pat. No. 4,021,905 describes a method of straightening the flue walls in a carbon anode ring furnace. The '905 patent discloses a method of straightening a flue wall by interposing a hydraulic jack between closely spaced brick flue walls and actuating the jack to apply opposing forces to the wall. The jack is positioned and actuated in a number of locations corresponding to a predetermined circular pattern about a deformation zone to reduce the deviation of bricks of the deformation zone. A tie brick is thereafter inserted between the flue walls to maintain normal spaced relation.
U.S. Pat. No. 4,990,220 discloses a coking reactor wherein coking blends are fed batchwise through the reactor whereby the reactor is heated through adjustable heating installations over the flue walls bordering the reactor chamber on both sides. As pointed out in the '220 patent, damages due to swelling are excluded altogether, as rigid lateral walls prevent the flue walls from being displaced.
In view of the foregoing, it would be desirable to provide an improved flue wall straightener for straightening the flue wall of an anode baking surface where bowing or bending of the flue wall has occurred.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an improved bake carbon flue straightener.
In one preferred embodiment, the present invention provides a bake carbon flue straightener for straightening a flue wall of an anode baking surface from a deformed or bowed position to a straight or normal position.
The flue straightener includes a plurality of remotely controlled and independently actuated hydraulic cylinders mounted on a plurality of elevations space apart at equal distances from each other and a steel frame for supporting the hydraulic cylinders. Each of the elevations of the hydraulic cylinders are coupled to a continuous length of extendable solid push plates for extending the push plates to the deformed or bowed flue wall so as to push or straighten with equally distributed forces the deformed or bowed flue wall back to straight or normal position.
REFERENCES:
patent: 1178020 (1916-04-01), Leonard
patent: 2352703 (1944-07-01), Fries, Jr.
patent: 2932889 (1960-04-01), Kritscher
patent: 3335573 (1967-08-01), Ward
patent: 3404533 (1968-10-01), Brunton
patent: 3697047 (1972-10-01), Cruse
patent: 4021905 (1977-05-01), Benton et al.
patent: 4453863 (1984-06-01), Sutton et al.
patent: 4787781 (1988-11-01), Bradberry
patent: 4803881 (1989-02-01), Dudley
patent: 4990220 (1991-02-01), Nashan et al.
patent: 5398535 (1995-03-01), Giffin
patent: 5690315 (1997-11-01), Thomas
patent: 5722646 (1998-03-01), Soderberg et al.
patent: 5839239 (1998-11-01), Jang
patent: 6000260 (1999-12-01), Price et al.
Baldwin Stephen E.
Bryant David P.
Century Aluminum Company
LandOfFree
Bake carbon flue straightener does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bake carbon flue straightener, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bake carbon flue straightener will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2846296