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Title: Pulverized fuel-oxygen burner

Patent ·
OSTI ID:1568697

A burner assembly combines oxygen and fuel to produce a flame. The burner assembly includes an oxygen supply tube adapted to receive a stream of oxygen and a solid fuel conduit arranged to extend through the oxygen tube to convey a stream of fluidized, pulverized, solid fuel into a flame chamber. Oxygen flowing through the oxygen supply tube passes generally tangentially through a first set of oxygen-injection holes formed in the solid fuel conduit and off-tangentially from a second set of oxygen-injection holes formed in the solid fuel conduit and then mixes with fluidized, pulverized, solid fuel passing through the solid fuel conduit to create an oxygen-fuel mixture in a downstream portion of the solid fuel conduit. This mixture is discharged into a flame chamber and ignited in the flame chamber to produce a flame.

Research Organization:
Honeywell International Inc., Morris Plains, NJ (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-06NT42811
Assignee:
Honeywell International Inc. (Morris Plains, NJ)
Patent Number(s):
10,371,377
Application Number:
15/679,944
OSTI ID:
1568697
Resource Relation:
Patent File Date: 08/17/2017
Country of Publication:
United States
Language:
English

References (12)

Apparatus for burning pulverized solid fuels with oxygen patent-application June 2005
Method of Combusting Particulate Solid Fuel with a Burner patent-application August 2012
Solid Fuel Burner, Burning Method Using the Same, Combustion Apparatus and Method of Operating the Combustion Apparatus patent-application October 2004
Self-Stabilizing Combustion Apparatus patent September 1966
Oxygen heater, hot oxygen lance having an oxygen heater and pulverized solid fuel burner patent May 1990
Pulverized Solid Fuel Burner patent-application August 2008
Method for reducing the flame temperature of a burner and burner intended therefor patent April 1992
Aspirating combustion system patent November 1991
Solid-Fuel-Fired Burner and Solid-Fuel-Fired Boiler patent-application June 2012
Oxygen-fuel burner with integral staged oxygen supply patent December 2006
Fuel Injector for Low NOx Furnace patent-application December 2009
Burner patent-application June 2011

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