| 摘要 |
A pusher side coke oven door assembly comprises a door, a cold face refractory wall attached to the door, and a hot face refractory wall attached to and spaced from the cold face refractory wall to form therewith a hollow vent space for gases evolved from roasting coal, wherein a top section of the hot face refractory wall is L-shaped and has a horizontally-disposed leg extending across the hollow vent space, and a pair of extender plates mounted on the leg and extending vertically thereabove to prevent coal spillage and entry into the hollow vent space during coal levelling.
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