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AssigneeNovelis Inc.
InventorsClaude Simard, Stéphane Ménard, Wesley Donald Stevens, Edward J. Wilson, Paul Banks, Luc Belley, Brad D. Burridge, Tony I. Phelps
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A regenerative burner device for a furnace and a method of removing contaminants from such a device. The burner device includes a burner for introducing heat and waste gas into a furnace during ignition when supplied with fuel and a combustion gas, a media bed comprising refractory particles, and ducting for delivering combustion gas to said burner during ignition, and for drawing waste gas from said furnace on termination of ignition. The ducting causes the combustion gas and the waste gas to pass in succession through the media bed. Means are provided for periodically delivering a rapid flow of a decontaminating gas into said media bed. The rapid flow is of sufficient force to dislodge contaminants collected in the media bed from said waste gas.
A regenerative burner device for a furnace, comprising:
A media bed apparatus for a regenerative burner of a furnace, comprising:
A method comprising:
A decontamination device for a media bed of a regenerative burner for a furnace, the media bed comprising refractory particles, the device comprising a source of gas under pressure and tubing having at least one stationary outlet for delivering a pulse of gas in less than one second, wherein the tubing and the at least one stationary outlet present uniform cross-sectional areas to the pulse of gas to avoid creation of a pressure differential as the pulse of gas is delivered through the tubing and out the at least one stationary outlet, and wherein the pulse of gas is of sufficient force to cause the refractory particles to bounce while combustion gas supplied to the burner or exhaust gas removed from the furnace is passing through the media bed and thereby to dislodge contaminants collected in the media bed as a result of operation of the regenerative burner.
Dependencies are inferred from the claim text.