Smokeless non-recovery type coke oven

A smokeless and non-recovery type coke oven comprising:

• means for forming an oven chamber including side walls, an oven roof carried by the side walls, removable door means for the discharge of coke from the oven chamber, and a floor to support a coal charge introduced into the oven chamber through a closable opening in said roof,
• means defining a sole heating flue for conducting partially-burned distillation products beneath said floor in heat-conducting contact therewith,
• means for conducting partially-burned distillation products from the space above a coal charge in said oven chamber into said sole heating flue,
• means defining a discharge flue arranged to receive the partially-burned distillation products from said sole heating flue,
• ignition chamber means including first and second ignition chambers each having checkerbricks therein to incinerate the partially-burned distillation products received from said discharge flue,
• means coupled to at least said first ignition chamber to heat the ignition chamber means independently of the heat liberated by incinerating the partially-burned distillation products and only to maintain a predetermined elevated operating temperature within said first and second ignition chambers,
• means responsive to the temperature within said ignition chamber means to activate said means to heat the ignition chamber means only when the detected temperature therein falls below said predetermined elevated operating temperature,
• secondary air supply means coupled to said ignition chamber means to insure and facilitate complete incineration of the partially-burned distillation products within the ignition chamber means independently of said means to heat the same,
• conduit means extending horizontally to conduct combustion products from said second ignition chamber means, and
• a stack to draw combustion products from said conduit means.