Grate block for a refuse incineration grate

Details Grate block for a refuse incineration grate Grate block for a refuse incineration grate

2005-11-15

2005-11-15

Rinehart, Kenneth (Department: 3749)

Furnaces

Including noncombustible fluid supply means

Hollow grate

C110S299000, C110S311000, C110S348000

Reexamination Certificate

active

06964237

ABSTRACT:
A grate block for an incinerator has a top wall and a front wall that extends from the front wall. A pair of side walls wherein each sidewall extends from the top wall and the front wall. Each of the side walls of the grate blocks engage the side wall of the adjacent grate block. Each side wall has a recess in proximity to the front wall/upper wall interface. The recess defines a gap between the side walls of the adjacent grate blocks. An opening in the recess through the side wall allows for the flow of air from a cavity within the grate block. The slot created by the recess of the two adjoining grate blocks has a narrower slot opening created by a shallow upper recess and a broader slot opening created by a deeper lower recess. In that the openings are not directly aligned with any of the exposed surfaces, the air is required to make a perpendicular turn prior to exiting the recess of the grate block. This allows for sufficient pressure to drop across the surface of the grate block for a uniform distribution of primary air. Furthermore, the pressure drop makes it difficult to plug the opening with ash and debris by the change in direction. Furthermore, the deeper lower recess below the shallow upper recess creates a self-relieving channel.

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