4566393 Wood-waste burner system

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New Patents

forming section. At the lower end of sealing bedforming section, an oblique opening is formed so as to keep a progressively increasing clearance to the conveyor in the direction of advance of conveyor. 4566393 WOO~WASTE

BURNER SYSTEM

Ralph M Connell, Edward 0 Dawson Wood-waste products, such as wood shavings, wood chips and sawdust, are burned in an apparatus having a waste burner comprising an

elongated cylinder in which fuel and air are mixed and ignited before entering an enlarged combustion chamb&. The waste burner is characterized by an elongated cylinder having a length substantially larger than its diameter so that the fuel can be heated to a temperature sufficient to pyrolyze volatiles and initiate combustion in the cylinder, A wood-waste burner apparatus is also provided and comprises the waste burner of the invention and a combustion chamber for receiving unburned fuel and combustion products emanating from the burner. A process for burning wood-waste products isalso provided. The invention is especially well suited for retrofitting packaged boilers to accommodate wood-waste fuels.

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