Treatment to enhance heat retention in coal and biomass burning furnaces
AssigneeAddchem Systems
InventorsJerrold E. Radway, Robert P. Bennett
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Abstract
The present invention provides a method and composition for on-line treatment of furnace walls that are subject to deposition of highly reflective ash. The method involves exposing the walls to a darkening agent, or a combination of a darkening agent and a fluxing agent. The darkening agent, or the combined darkening agent and fluxing agent, may be mixed with the coal before it enters the boiler. Preferably, the appropriate walls of the boiler are treated directly with the darkening agent. A preferred embodiment involves direct application of the darkening agent to the water wall.
Claims29
A method for improving the heat absorption of a furnace wall that is at least partially coated with reflective ash comprising applying to at least a portion of said reflective ash a combination of a darkening agent and an amount of a fluxing agent that is sufficient to bind said darkening agent to said reflective ash.
A method for improving the heat absorption of a furnace wall that is at least partially coated with reflective ash comprising blowing directly onto at least a portion of said reflective ash a combination of a darkening agent and an amount of a fluxing agent that is sufficient to bind said darkening agent to said reflective ash.
Dependencies are inferred from the claim text.