A coke plant includes multiple coke ovens where each coke oven is adapted to produce exhaust gases, a common tunnel fluidly connected to the plurality of coke ovens and configured to receive the exhaust gases from each of the coke ovens, multiple standard heat recovery steam generators fluidly connected to the common tunnel where the ratio of coke ovens to standard heat recovery steam generators is at least 20:1, and a redundant heat recovery steam generator fluidly connected to the common tunnel where any one of the plurality of standard heat recovery steam generators and the redundant heat recovery steam generator is adapted to receive the exhaust gases from the plurality of ovens and extract heat from the exhaust gases and where the standard heat recovery steam generators and the redundant heat recovery steam generator are all connected in parallel with each other.

A coke plant includes multiple coke ovens where each coke oven is adapted to produce exhaust gases, a common tunnel fluidly connected to the plurality of coke ovens and configured to receive the exhaust gases from each of the coke ovens, multiple standard heat recovery steam generators fluidly connected to the common tunnel where the ratio of coke ovens to standard heat recovery steam generators is at least 20:1, and a redundant heat recovery steam generator fluidly connected to the common tunnel where any one of the plurality of standard heat recovery steam generators and the redundant heat recovery steam generator is adapted to receive the exhaust gases from the plurality of ovens and extract heat from the exhaust gases and where the standard heat recovery steam generators and the redundant heat recovery steam generator are all connected in parallel with each other.

A coke oven includes an oven chamber, an uptake duct in fluid communication with the oven chamber, the uptake duct being configured to receive exhaust gases from the oven chamber, an uptake damper in fluid communication with the uptake duct, the uptake damper being positioned at any one of multiple positions, the uptake damper configured to control an oven draft, an actuator configured to alter the position of the uptake damper between the positions in response to a position instruction, a sensor configured to detect an operating condition of the coke oven, wherein the sensor includes one of a draft sensor, a temperature sensor configured to detect an uptake duct temperature or a sole flue temperature, and an oxygen sensor, and a controller being configured to provide the position instruction to the actuator in response to the operating condition detected by the sensor.

A coke oven includes an oven chamber, an uptake duct in fluid communication with the oven chamber, the uptake duct being configured to receive exhaust gases from the oven chamber, an uptake damper in fluid communication with the uptake duct, the uptake damper being positioned at any one of multiple positions, the uptake damper configured to control an oven draft, an actuator configured to alter the position of the uptake damper between the positions in response to a position instruction, a sensor configured to detect an operating condition of the coke oven, wherein the sensor includes one of a draft sensor, a temperature sensor configured to detect an uptake duct temperature or a sole flue temperature, and an oxygen sensor, and a controller being configured to provide the position instruction to the actuator in response to the operating condition detected by the sensor.

Coke oven wall structures are provided with a pair of interconnected opposed first and second block components, each of which is generally an asymmetrical T-shaped unitary structure having an interior wall element integrally formed at substantially a right angle to a side wall element. The interior wall element of each of the first and second block components includes a terminal end defining reverse mirror images of respective L-shaped notches which establish corresponding protruding finger elements. In such a manner, each of the protruding finger elements of the first and second block components is received within the L-shaped recesses of the second and first block components, respectively, when such components are positioned in opposition to one another.

Coke oven wall structures are provided with a pair of interconnected opposed first and second block components, each of which is generally an asymmetrical T-shaped unitary structure having an interior wall element integrally formed at substantially a right angle to a side wall element. The interior wall element of each of the first and second block components includes a terminal end defining reverse mirror images of respective L-shaped notches which establish corresponding protruding finger elements. In such a manner, each of the protruding finger elements of the first and second block components is received within the L-shaped recesses of the second and first block components, respectively, when such components are positioned in opposition to one another.

A coke plant includes multiple coke ovens where each coke oven is adapted to produce exhaust gases, a common tunnel fluidly connected to the plurality of coke ovens and configured to receive the exhaust gases from each of the coke ovens, multiple standard heat recovery steam generators fluidly connected to the common tunnel where the ratio of coke ovens to standard heat recovery steam generators is at least 20:1, and a redundant heat recovery steam generator fluidly connected to the common tunnel where any one of the plurality of standard heat recovery steam generators and the redundant heat recovery steam generator is adapted to receive the exhaust gases from the plurality of ovens and extract heat from the exhaust gases and where the standard heat recovery steam generators and the redundant heat recovery steam generator are all connected in parallel with each other.

A coke plant includes multiple coke ovens where each coke oven is adapted to produce exhaust gases, a common tunnel fluidly connected to the plurality of coke ovens and configured to receive the exhaust gases from each of the coke ovens, multiple standard heat recovery steam generators fluidly connected to the common tunnel where the ratio of coke ovens to standard heat recovery steam generators is at least 20:1, and a redundant heat recovery steam generator fluidly connected to the common tunnel where any one of the plurality of standard heat recovery steam generators and the redundant heat recovery steam generator is adapted to receive the exhaust gases from the plurality of ovens and extract heat from the exhaust gases and where the standard heat recovery steam generators and the redundant heat recovery steam generator are all connected in parallel with each other.

A duct operatively arranged to fluidly connect a first flue of a heating wall of a coke oven battery with a second flue of the heating wall, the duct comprising a first end, second end, a distal end and a proximal end, a passageway disposed therein, the passageway extending from the first end to the second end, a pair of proximal apertures disposed within the proximal end and open to the passageway, and a pair of distal apertures disposed within the proximal end and open to the passageway, the distal apertures arranged be in fluid communication with the passageway, wherein one of the distal apertures is arranged to be in fluid communication with the first flue of the coke oven battery and the other of the distal apertures is arranged to be in fluid communication with the second flue of the coke oven battery.

A duct operatively arranged to fluidly connect a first flue of a heating wall of a coke oven battery with a second flue of the heating wall, the duct comprising a first end, second end, a distal end and a proximal end, a passageway disposed therein, the passageway extending from the first end to the second end, a pair of proximal apertures disposed within the proximal end and open to the passageway, and a pair of distal apertures disposed within the proximal end and open to the passageway, the distal apertures arranged be in fluid communication with the passageway, wherein one of the distal apertures is arranged to be in fluid communication with the first flue of the coke oven battery and the other of the distal apertures is arranged to be in fluid communication with the second flue of the coke oven battery.