Method and system for optimizing coke plant operation and output
View Patent ↗The present technology is generally directed to methods of increasing coke production rates for coke ovens. In some embodiments, a coal charging system includes a false door system with a false door that is vertically oriented to maximize an amount of coal being charged into the oven. A lower extension plate associated with embodiments of the false door is selectively, automatically extended beyond a lower end portion of the false door in order to extend an effective length of the false door. In other embodiments an extension plate may be coupled with an existing false door having an angled front surface to provide the existing false door with a vertically oriented face.
1. A coal charging system for charging a coke oven, the system comprising:
an elongated charging frame; and
a charging head operatively coupled with the distal end portion of the elongated charging frame;
an elongated false door frame having a distal end portion, proximal end portion, and opposite sides;
a generally planar false door operatively coupled with the distal end portion of the elongated false door frame; the false door having an upper edge portion, lower edge portion, opposite side portions, a front face, and a rearward face; the front face of the false door residing within a false door plane that is substantially vertical; and
a lower extension plate operatively coupled with the front face of the false door; the lower extension plate being automated, such that it is selectively and incrementally moveable with respect to the false door between an infinite number of vertically retracted and extended positions when the false door is disposed within the coke oven; wherein at least some of the infinite number of vertically extended positions disposes a lower edge portion of the lower extension plate below the lower edge portion of the false door such that an effective height of the false door is increased.
2. The coal charging system of claim 1 further comprising:
a linkage arm assembly operatively coupled with the lower extension plate and at least one power cylinder that may be selectively activated to move the lower extension plate between the retracted and extended positions.
3. The coal charging system of claim 2 further comprising:
at least one extension plate bracket operatively coupled with the lower extension plate and the linkage arm assembly; the at least one extension plate bracket extending through at least one slot that penetrates the false door.
4. A false door system for use with a coal charging system to charge a coke oven, having an elongated charging frame with a charging head coupled with a distal end portion of the charging frame, the system comprising:
an elongated false door frame having a distal end portion, proximal end portion, and opposite sides; and
a generally planar false door operatively coupled with the distal end portion of the elongated false door frame; the false door having an upper edge portion, lower edge portion, opposite side portions, a front face, and a rearward face;
a lower extension plate operatively coupled with the front face of the false door; the lower extension plate being automated, such that it is selectively and incrementally moveable with respect to the false door between an infinite number of vertically retracted and extended positions when the false door is disposed within the coke oven; wherein at least some of the infinite number of vertically extended positions disposes a lower edge portion of the lower extension plate below the lower edge portion of the false door such that an effective height of the false door is increased.
5. The coal charging system of claim 4 further comprising:
a linkage arm assembly operatively coupled with the lower extension plate and at least one power cylinder that may be selectively activated to move the lower extension plate between the retracted and extended positions.
6. The coal charging system of claim 5 further comprising:
at least one extension plate bracket operatively coupled with the lower extension plate and the linkage arm assembly; the at least one extension plate bracket extending through at least one slot that penetrates the false door.
7. A method of increasing a coal charge in a coke oven, the method comprising:
positioning a coal charging system, having an elongated charging frame and a charging head operatively coupled with the distal end portion of the elongated charging frame, at least partially within a pusher side opening of a coke oven;
positioning a false door system, having an elongated false door frame and a generally planar false door operatively coupled with a distal end portion of the elongated false door frame, at least partially within the pusher side opening of the coke oven; the false door having an upper edge portion, lower edge portion, opposite side portions, a front face, and a reward face; wherein the false door system further comprises a lower extension plate operatively coupled with the front face of the false door; the lower extension plate being automated, such that it is selectively and incrementally moveable with respect to the false door between an infinite number of vertically retracted and extended positions when the false door is disposed within the coke oven; wherein at least some of the infinite number of vertically extended positions disposes a lower edge portion of the lower extension plate below the lower edge portion of the false door such that an effective height of the false door is increased;
charging coal into the coke oven with the coal charging system in a manner that defines a coal charge having a generally vertical end portion; and
operatively coupling an oven door with the coke oven in a manner that closes the pusher side opening of the coke oven.
8. The method of claim 7 wherein the generally vertical end portion of the coal charge is positioned closely adjacent a refractory face of the oven door.
9. The method of claim 7 wherein the generally vertical end portion of the coal charge is positioned no more than six inches from a refractory face of the oven door.
10. The method of claim 7 wherein the generally vertical end portion of the coal charge is positioned no more than twelve inches from a refractory face of the oven door.
11. The method of claim 7 further comprising:
reciprocally impacting the end portion of the coal face with the false door in a manner that at least partially compacts a portion of the coal face and resists portions of the coal face from spilling from the pusher side opening of the coke oven.
12. The method of claim 7 further comprising:
applying a fluid to the coal face with the false door in a manner that wets a portion of the coal face and resists portions of the coal face from spilling from the pusher side opening of the coke oven.