Jeffrey J Hahn

US Patent:

6868795, Mar 22, 2005

Filed:

May 29, 2003

Appl. No.:

10/447895

Inventors:

Mikhail Maryamchik - Copley Township, Summit County OH, US
Gary L. Anderson - Ducansville PA, US
Jeffrey J. Hahn - Ebensburg PA, US
David J. Walker - Wadsworth OH, US
Jeffrey J. Bolebruch - Gloversville NY, US

Assignee:

The Babcock & Wilcox Company - New Orleans LA
Blasch Precision Ceramics, Inc. - Albany NY

International Classification:

F23G005/30
F02M029/04

US Classification:

110245, 2611142, 34369

Abstract:

A bubble cap assembly for use in fluidized bed boilers, furnaces, or reactors, has a bubble cap, a stem, and at least one pin. One end of the stem is inserted into the bubble cap. The bubble cap has outlet holes for delivering a fluidizing medium, typically into a bed of granulated material, but which prevent backsifting of the granulated material into the bubble cap. The bubble cap also has at least one insertion hole, through which a pin may be inserted. When the pin is inserted through the bubble cap insertion hole, it also occupies a groove or indentation on the stem thereby preventing separation or disassembly of the bubble cap and stem combination. An elastic gasket may be provided between the bubble cap and stem to form a fluid tight connection.

US Patent:

6869459, Mar 22, 2005

Filed:

May 29, 2003

Appl. No.:

10/447688

Inventors:

Mikhail Maryamchik - Copley Township, Summit County OH, US
Gary L. Anderson - Duncansville PA, US
Jeffrey J. Hahn - Ebensburg PA, US
Timothy F. Connors - Watervliet NY, US
Jeffrey J. Bolebruch - Gloversville NY, US

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

B01D045/08

US Classification:

554344, 55444, 55465, 110216, 110245, 122 4 D

Abstract:

Apparatus for separating solids from flue gas in a circulating fluidized bed (CFB) boiler comprises plural vertical, impact type particle separators made of a plurality of hung elements which are supported from at least one cooled support tube. The plurality of hung elements cooperate with one another at adjacent ends thereof to form a collecting channel which opens toward a flow of flue gas along the length of the support tube. Each hung element includes two mutually inverted U-shaped parts; the first U-shaped part opens towards the oncoming flow of flue gas, the second U-shaped part embraces the support tube, and the first U-shaped part is shifted relative to the second U-shaped part by some fraction of a height of the hung element. The hung elements may be made of metal or ceramic.

US Patent:

8114359, Feb 14, 2012

Filed:

Nov 10, 2005

Appl. No.:

11/577171

Inventors:

Mikhail Maryamchik - Copley OH, US
Gary L. Anderson - Duncansville PA, US
Jeffrey Hahn - Ebensburg PA, US
Richard A. Ramsdell - Carrolltown PA, US

International Classification:

B01D 53/56

US Classification:

422310, 261115, 239132, 422172

Abstract:

An SNCR distribution grid for introducing a NOx reducing reactant into a flue gas flow. The grid is made of one or more elements which are formed by fluid-cooled tubes to which membrane pieces are attached, preferably by welding, to form conduits in between the tubes. The fluid-cooled tubes may be cooled by water and/or steam and the distribution grid is disposed in the flue gas flow. To admit the reactant into the flue gas, nozzles are provided in the membrane and the reactant is conveyed from a location external of the furnace or combustor enclosure, into the conduits so formed, and thence out into the Flue gas flow via the nozzles.