Coke oven door sealing device, coke oven chamber and coke oven battery

Coke oven door sealing device for sealing a coke oven door against a sealing surface of a coke oven door frame of a coke oven chamber, the coke oven door sealing device comprising:

• a coke oven door having a panel unit for closing the coke oven chamber;
• a fixture device for holding a sealing piece in a peripheral area of the coke oven door opposite to the sealing surface, wherein the fixture device is attached to the panel unit;
• the sealing piece wherein the sealing piece is configured to be operated in a first operating state or a second operating state;
• wherein, in a first operating state, the sealing piece is spaced at a first distance from the sealing surface arranged opposite of the sealing piece;
• and wherein, in a second operating state, the sealing piece contacts the sealing surface;
• such that in the second operating state, the sealing piece and the panel unit at least partially shape a cavity;
• and
• wherein the coke oven door sealing device further comprises a first insulation element for thermally insulating the sealing piece, wherein the first insulation element is arranged on the fixture device and the first insulation element is arranged between the fixture device and the panel unit, so that the fixture device is indirectly attached to the panel unit.