Horizontal heat recovery coke ovens having monolith crowns
AssigneeSuncoke Technology and Development LLC
InventorsGary Dean West, John Francis Quanci
Life of this patent
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Abstract
The present technology is generally directed to horizontal heat recovery coke ovens having monolith crowns. In some embodiments, an HHR coke oven includes a monolith crown that spans the width of the oven between opposing oven sidewalls. The monolith expands upon heating and contracts upon cooling as a single structure. In further embodiments, the crown comprises a thermally volume-stable material. In various embodiments, the monolith and thermally-volume-stable features can be used in combination or alone. These designs can allow the oven to be turned down below traditionally feasible temperatures while maintaining the structural integrity of the crown.
Claims17
A horizontal heat recovery coke oven chamber, comprising:
- a floor;
- a front wall extending vertically upward from the floor and a back wall opposite the front wall;
- a first sidewall extending vertically upward from the floor between the front wall and the back wall and a second sidewall opposite the first sidewall;
- and
- a monolith crown positioned above the floor and spanning from the first sidewall to the second sidewall.
A method of turning down a horizontal heat recovery coke oven, the method comprising:
- forming a horizontal heat recovery coke oven structure having a floor, a first sidewall and a second sidewall opposite the first sidewall, and an oven crown over the floor in a space at least partially between the first sidewall and the second sidewall;
- the oven crown comprising a material characterized by a known thermally-volume-stable temperature;
- heating the horizontal heat recovery coke oven above the known thermally-volume-stable temperature;
- turning down the horizontal heat recovery coke oven below the thermally-volume-stable temperature;
- and
- maintaining the horizontal heat recovery coke oven structure.
Dependencies are inferred from the claim text.