Back to results
US 6,705,859 B2Granted
Tapered grizzly bars for lime kiln
AssigneeAndritz Inc.
InventorRoyce G. McCarty
Life of this patent
Estimating the term…
Abstract
A grizzly bar device for a rotating kiln having an annular array of bars having at least two adjacent bars, wherein the thickness the bars is reduced in lateral and radial directions, and gap between the adjacent bars increases in width as the bars extend laterally from front to back of the bar and extend radially inward of the kiln. Another taper on a front face of the bars provides a cutting corner on each bar.
Claims24
A grizzly bar apparatus for a rotating kiln comprising:
- at least two adjacent bars extending radially inward of an inside surface of the kiln, said adjacent bars each have a front surface facing inward of the kiln and a rear surface facing outward of the kiln when said adjacent bars are mounted at or near a discharge end of the kiln, wherein each of the adjacent bars has thickness which reduces from the front surface to the rear surface along a line parallel to a kiln axis;
- and
- a gap between said adjacent bars which increases in width from the front surface to the rear surface of each of said adjacent bars, wherein said gap is in a plane generally perpendicular to the kiln axis.
An annular array of grizzly bars for a rotating kiln comprising:
- array of adjacent bars arranged in a plane perpendicular to a kiln axis, wherein each bar comprises a front face, a rear face and a flank extending from the front face to the rear face, wherein said flank from each bar faces a flank of the adjacent bar,
- each of said adjacent bars having a thickness reducing as the bar extends from the front face to the rear face and as the bar extends from a annular flange to an upper tip of the bar, and
- each of said adjacent bars further including a taper of the front face, wherein said taper forms a cutting corner on said front face,
- wherein said front face is oriented generally inward of the kiln and said rear face is oriented generally towards a discharge end of said kiln.
1 more element
Dependencies are inferred from the claim text.