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Title: Coal-water mixture fuel burner

Abstract

The present invention represents an improvement over the prior art by providing a rotating cup burner arrangement for use with a coal-water mixture fuel which applies a thin, uniform sheet of fuel onto the inner surface of the rotating cup, inhibits the collection of unburned fuel on the inner surface of the cup, reduces the slurry to a collection of fine particles upon discharge from the rotating cup, and further atomizes the fuel as it enters the combustion chamber by subjecting it to the high shear force of a high velocity air flow. Accordingly, it is an object of the present invention to provide for improved combustion of a coal-water mixture fuel. It is another object of the present invention to provide an arrangement for introducing a coal-water mixture fuel into a combustion chamber in a manner which provides improved flame control and stability, more efficient combustion of the hydrocarbon fuel, and continuous, reliable burner operation. Yet another object of the present invention is to provide for the continuous, sustained combustion of a coal-water mixture fuel without the need for a secondary combustion source such as natural gas or a liquid hydrocarbon fuel. Still another object of the present inventionmore » is to provide a burner arrangement capable of accommodating a coal-water mixture fuel having a wide range of rheological and combustion characteristics in providing for its efficient combustion. 7 figs.« less

Inventors:
; ;
Issue Date:
Research Org.:
Management and Technical Services Co., Philadelphia, PA (USA)
OSTI Identifier:
5605353
Application Number:
ON: DE86013810
Assignee:
Dept. of Energy TIC; ERA-11-003774; EDB-86-133812
DOE Contract Number:  
AC22-82PC51504
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; BURNERS; DESIGN; FUEL SLURRIES; ATOMIZATION; COAL; CONTROL; FLAMES; MIXTURES; WATER; CARBONACEOUS MATERIALS; DISPERSIONS; ENERGY SOURCES; FOSSIL FUELS; FUELS; HYDROGEN COMPOUNDS; MATERIALS; OXYGEN COMPOUNDS; SLURRIES; SUSPENSIONS; 014000* - Coal, Lignite, & Peat- Combustion

Citation Formats

Brown, T.D., Reehl, D.P., and Walbert, G.F. Coal-water mixture fuel burner. United States: N. p., 1985. Web.
Brown, T.D., Reehl, D.P., & Walbert, G.F. Coal-water mixture fuel burner. United States.
Brown, T.D., Reehl, D.P., and Walbert, G.F. Mon . "Coal-water mixture fuel burner". United States.
@article{osti_5605353,
title = {Coal-water mixture fuel burner},
author = {Brown, T.D. and Reehl, D.P. and Walbert, G.F.},
abstractNote = {The present invention represents an improvement over the prior art by providing a rotating cup burner arrangement for use with a coal-water mixture fuel which applies a thin, uniform sheet of fuel onto the inner surface of the rotating cup, inhibits the collection of unburned fuel on the inner surface of the cup, reduces the slurry to a collection of fine particles upon discharge from the rotating cup, and further atomizes the fuel as it enters the combustion chamber by subjecting it to the high shear force of a high velocity air flow. Accordingly, it is an object of the present invention to provide for improved combustion of a coal-water mixture fuel. It is another object of the present invention to provide an arrangement for introducing a coal-water mixture fuel into a combustion chamber in a manner which provides improved flame control and stability, more efficient combustion of the hydrocarbon fuel, and continuous, reliable burner operation. Yet another object of the present invention is to provide for the continuous, sustained combustion of a coal-water mixture fuel without the need for a secondary combustion source such as natural gas or a liquid hydrocarbon fuel. Still another object of the present invention is to provide a burner arrangement capable of accommodating a coal-water mixture fuel having a wide range of rheological and combustion characteristics in providing for its efficient combustion. 7 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {4}
}