Furnaces – Including noncombustible fluid supply means – Having treatment means
Reexamination Certificate
2006-03-21
2006-03-21
Rinehart, Kenneth (Department: 3749)
Furnaces
Including noncombustible fluid supply means
Having treatment means
C110S310000, C110S10400A, C110S106000
Reexamination Certificate
active
07013815
ABSTRACT:
An adjustable device installed at the inlet of conventional junctions/splitters (116) for on-line control of the distribution of coal among the outlet pipes is herein disclosed. The device includes a plurality of wake inducing airfoils (60) each positioned upstream of a plurality of flow channels in the riffler (50) for directing coal flow to the outlet pipes. Each wake-inducing airfoil has a cross-section defined by a width W that varies along its length H for creating upstream turbulence, and a particle wake that preferentially diverts the coal flow to one of the outlet pipes at the splitter junction without affecting primary air flow. For example, each wake inducing airfoil may comprise a rounded convex edge leading to straight tapered sides. The surfaces of the sides may be roughened or textured (63) for promoting turbulent boundary layers. In addition, conventional fixed or variable orifices may be used in combination with the wake inducing airfoils for balancing primary air flow rates. The device allows fine-adjustment control of coal flow rates when used in combination with the slotted riffler, yet it has negligible effect on the distribution of primary air, resulting in closely balanced coal flow, reduced pollutant emissions and improved combustion efficiency.
REFERENCES:
patent: 2975001 (1961-03-01), Davis
patent: 4094492 (1978-06-01), Beeman et al.
patent: 4412496 (1983-11-01), Trozzi
patent: 4459922 (1984-07-01), Chadshay
patent: 4478157 (1984-10-01), Musto
patent: 4570549 (1986-02-01), Trozzi
patent: 4779546 (1988-10-01), Walsh, Jr.
patent: 5593131 (1997-01-01), Briggs et al.
patent: 5685240 (1997-11-01), Briggs et al.
patent: 5975141 (1999-11-01), Higazy
patent: 6055914 (2000-05-01), Wark
Bilirgen Harun
Levy Edward Kenneth
Yilmaz, legal representative Ferruhyie
Law Offices of Royal W. Craig
Rinehart Kenneth
LandOfFree
Adjustable air foils for balancing pulverized coal flow at a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adjustable air foils for balancing pulverized coal flow at a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable air foils for balancing pulverized coal flow at a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3589879