Grating system and sidewall seal arrangement for oscillating grate stoker
AssigneeRiley Power, Inc.
InventorsJohn Sund, Larry Pace, Kevin Toupin
Life of this patent
Estimating the term…
Abstract
The invention includes a grate system for a boiler. The grate system includes a grate unit and a side header guard. The grate unit supports fuel during combustion thereof, and has an upper surface, a lower surface, and upturned lateral edges. The side header guard is arranged along a side wall of the boiler and has upwardly and downwardly projecting fin portions. The upwardly projecting fin portion is adapted and configured to extend over and protect the boiler side wall from abrasion by fuel. The downwardly projecting fin portion is adapted and configured to extend over the upturned lateral edge of the grate unit, inhibiting passage of fuel therebetween.
Claims18
A grate system for a boiler, the grate system comprising:
- a grate unit for supporting fuel during combustion thereof, the grate unit having an upper surface and a lower surface and upturned lateral edges;
- and
- a side header guard arranged along a side wall of the boiler, the side header guard having upwardly and downwardly projecting fin portions, the upwardly projecting fin portion being adapted and configured to extend over and protect the boiler side wall from abrasion by fuel, the downwardly projecting fin portion being adapted and configured to extend over the upturned lateral edge of the grate unit, inhibiting passage of fuel therebetween, wherein the upper surface of the grate near the outer lateral edges thereof slopes toward a centerline of the grate unit to urge fuel carried thereon away from lateral edges of the grate unit, and wherein the side header guard is vibrationally isolated from the grate unit in at least a vertical direction with respect to the upwardly and downwardly projecting fin portions.
A grate system for a boiler, the grate system comprising:
- a grate unit for supporting fuel during combustion thereof, the grate unit having an upper surface and a lower surface and upturned lateral edges;
- and
- a side header guard arranged along a side wall of the boiler, the side header guard having upwardly and downwardly projecting fin portions, the upwardly projecting fin portion being adapted and configured to extend over and protect the boiler side wall from abrasion by fuel, the downwardly projecting fin portion being adapted and configured to extend over the upturned lateral edge of the grate unit, inhibiting passage of fuel therebetween, wherein combustion-proof material is arranged between the grating unit and the side header guard, further inhibiting passage of fuel or combustion gases therebetween;
- and wherein the side header guard is vibrationally isolated from the grate unit in at least a vertical direction with respect to the upwardly and downwardly projecting fin portions.
Dependencies are inferred from the claim text.