Heating – Heating or heat retaining work chamber structure – Door – cover or port
Patent
1981-03-30
1983-09-27
Camby, John J.
Heating
Heating or heat retaining work chamber structure
Door, cover or port
110173R, 202250, 202251, F27D 118, C10B 2522, C10B 3100, F23M 700
Patent
active
044066198
ABSTRACT:
In a coke oven of the type having a plurality of filling shafts with openings and caps therefor at the oven roof, in order to reduce the temperature gradient and heat losses at the roof of the coke oven, the caps of the filling shafts are each directly mounted on fire-resistant brickwork rather than a metallic frame; also, the associated caps are each made of ceramic material with optional reinforcement and include a metal insert which is heat insulated from the oven by a heat barrier. The metal insert facilitates magnetic hoisting of the cap during unloading and loading of the oven and is provided with an adjoining layer of fired clay and felt. The engaging surfaces of the cap body and the brickwork of the filling shaft opening are preferably conical and define an annular recess on the outside for pouring cement or the like to secure the cap in position and seal off the shaft.
REFERENCES:
patent: 1072857 (1913-09-01), Kickert
patent: 2920017 (1960-01-01), Limberg
Camby John J.
Lewis Jon M.
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