METHOD OF BURNING PULVERIZED SOLID FUEL AND THE LIKE

PURPOSE:To prevent the temperature in a burner part from rising, to decrease generation of unburnt matter, and to enable to stabilizedly ignite and burn flame-retardant fuel, by mixing oxygen with the primary air and over-firing air (OFA) only to use the oxygen-enriched air in a specified zone to bu...

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Bibliographic Details
Main Authors TOKUDA KIMIYO, OGURI MASAHARU, SAKAI MASAYASU, NAKAJIMA FUMIYA
Format Patent
LanguageEnglish
Published 28.04.1986
Edition4
Subjects
AIR
AIR SUPPLY
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
DRAUGHT-INDUCING
HEATING
LIGHTING
MECHANICAL ENGINEERING
METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN
SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS
WEAPONS
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Summary:PURPOSE:To prevent the temperature in a burner part from rising, to decrease generation of unburnt matter, and to enable to stabilizedly ignite and burn flame-retardant fuel, by mixing oxygen with the primary air and over-firing air (OFA) only to use the oxygen-enriched air in a specified zone to burn fuel. CONSTITUTION:Oxygen 6 is mixed with the primary air and over-firing air only, in a method to burn fuel 5 such as pulverized solid fuel or slurry fuel with combustion air 1, which is divided into the primary air 2, the secondary air 3, and over-firing air 4. Unburnt matter is contained in combustion exhaust gas 10 passing through the outlet of a main burner zone 14. OFA4 of high oxygen concentration is very effective to burn unburnt matter, and it is nearly completely burned out in a OFA zone 15. Besides, the more the concentration of oxygen increases in the primary air 2 of high oxygen concentration, the shorter the distance for ignition becomes, so that even flame-retardant fuel can be ignited and burned stably.
Bibliography:Application Number: JP19840204126