Furnace grate
OwnerVaifro V. Bonomelliinventor
Life of this patent
Estimating the term…
Abstract
This invention relates to a grate for burning solid combustibles and, more particularly, refuse in a fired furnace. The grate comprises a plurality of steps, each step including a plurality of adjacent grate bars with alternate steps of grate bars being movable relative to an adjacent step of stationary grate bars. Each grate bar includes a substantially horizontal platform terminating in a front lip, a pusher and means for pivotally mounting said pusher beneath the platform at a point near the back of the platform. The pusher includes a faceplate shaped to form an elongated channel with the undersurface of the lip to pass combustion air to said firing chamber. The relative position of the pusher and horizontal platform can be adjusted to vary the size of the air channel in order to adjust the amount of air fed to the firing chamber.
Claims8
A grate bar for use in a furnace wherein movable grate bars are oscillated relative to stationary grate bars for the purpose of conveying fuel through a firing chamber, comprising:
- a substantially horizontal platform terminating in a downwardly extending front lip, and
- a pusher pivotally rounted beneath the platform, said pusher including a faceplate, said front lip overlying the upper section of the faceplate to form a downwardly sloped, horizontally elongated channel between the undersurface of said front lip and the upper section of said faceplate through which combustion air can be passed to said firing chamber, the horizontal platform and pusher having no openings in the surface exposed to the fuel through which ash particles can pass.
For use in burning refuse in a refuse fired furnace, a grate comprising a plurality of steps, each step comprising a plurality of grate bars with alternate steps of grate bars being movable relative to the next lower step of stationary grate bars, each of said steps comprising a mounting member, said grate bars including a substantially horizontal platform terminating in a front lip, a pusher and means for pivotally mounting said pusher beneath the platform at a point near the back of the platform, said pusher including a faceplate, said front lip overlying the upper section of the faceplate to form a downwardly sloped, horizontally elongated channel between the undersurface of said lip and the upper section of said faceplate to pass combustion air to said firing chamber, the horizontal platform and pusher having no openings in the surface exposed to the fuel through which ash particles can pass, each such faceplate resting on the horizontal platform of a grate bar of the next lower step.
Dependencies are inferred from the claim text.