Abstract: A device for sealing the cambers of coke ovens adjacent the roof of the oven and above an oven door frame which is located at the transition between fireclay brickwork and silica brickwork each of which has joints between the courses thereof is located between anchor plates which support each side of the door frame. The door frame includes a vertical back portion which intersects a horizontal top portion. During the formation of the brick a cast iron bridge is positioned so that a vertical part is arranged directly behind the door and is advantageously sealed to the rear base of the door frame by a gasket or asbestos cord. The anchor plate carries an upper horizontal portion which is disposed beneath the fireclay brick at the transition between the fireclay and the silica brickwork and supports the fireclay brick. In addition, another horizontally extending part of the cast iron bridge is positioned into the silica brickwork between adjacent courses located near the top of such brickwork.

Abstract: A coke oven door having a refractory plug with vertical gas channels on each side, each channel having a plurality of tributary vents originating at the face of the plug normally exposed to a relatively high pressure area and leading upwardly to the vertical gas channels at about a 30.degree. angle to permit reduction of the gas pressure through the channels, behind the door seal.

Abstract: A coke oven door construction for closing and opening in a coke oven furnace comprising a brick supporter for carrying bricks in the coke oven furnace opening which is subject to high temperatures in the coke oven furnace and thermal expansion, and a door body connected to the brick supporter and having a locking mechanism for retaining the brick supporter in the coke oven furnace opening. The door body and brick supporter are elongated and rigidly connected to each other by at least one connecting pin at one elevation along the door body and brick supporter. The door body and brick supporter are also connected to each other by a plurality of sliding connections along the length of the door body and brick supporter whereby longitudinal thermal expansion of the brick supporter is not transmitted to the door body so that the door body and brick supporter are not warped by such thermal expansion.

Abstract: The ends of refractory-lined rotary kilns are often subjected to such intense heat flux that the steel shell of the kiln at either or both ends is subjected to substantial thermal expansion in both the longitudinal and circumferential directions, resulting in premature cracking and failure of the refractory. The present apparatus is a rotary kiln wherein either or both ends of the steel shell thereof are provided with a plurality of substantially longitudinal slots which accommodate circumferential expansion and the refractory is affixed to the steel shell at such end(s) with sliding anchors to accommodate longitudinal expansion.

Abstract: An intermediate coke oven head comprises spaced apart substantially parallel steel-concrete side walls with cross walls connected between the side walls and dividing the space therebetween into a plurality of individual compartments. An aeration and ventilation system is connected to the compartments and includes one air inlet from the exterior of the walls extending into each compartment adjacent the lower ends thereof and at least one air outlet connected into the top of the compartments.