Pulverized solid fuel nozzle tip with ceramic component

Details Pulverized solid fuel nozzle tip with ceramic component Pulverized solid fuel nozzle tip with ceramic component

F - Mech Eng,Light,Heat,Weapons

23

D

F23D 1/00 (2006.01)

Patent

CA 2451088

A (MRFC) solid fuel nozzle tip (12) that is particularly suited to being cooperatively associated with a pulverized solid fuel nozzle (34) of a firing system of the type employed in a pulverized solid fuel-fired furnace (10). The MRFC solid fuel nozzle tip (12) includes fuel air shroud means (46), primary air shroud means (48) located within the fuel air shroud means (46), fuel air shroud support means (50) operative for supporting the primary air shroud means (48) relative to the fuel air shroud means (46), and splitter plate means (52) mounted in supported relation within the primary air shroud means (48). The MRFC solid fuel nozzle tip (12) may be comprised of ceramics including silicon nitride, siliconized silicon carbide, mullite bonded silicon carbide alumina composite, and alumina zirconia composites.

Cette invention concerne une buse d'injection (12) de combustible solide de type MRFC particulièrement bien adaptée pour être associée fonctionnellement avec une buse (34) de combustible solide pulvérisé d'un système d'allumage tel que celui utilisé dans un four (10) à combustible solide pulvérisé. Cette buse d'injection (12) de combustible solide de type MRFC comprend un élément d'enveloppe (46) de combustible-air, un élément d'enveloppe (48) d'air primaire disposé à l'intérieur de l'élément d'enveloppe (46) de combustible-air, un élément de support (50) d'enveloppe de combustible-air servant à maintenir en position l'élément d'enveloppe (48) d'air primaire par rapport à l'élément d'enveloppe (46) de combustible air, et un élément de panneau de séparation (52) maintenu à l'intérieur de l'élément d'enveloppe (48) d'air primaire. Cette buse d'injection (12) de combustible solide de type MRFC peut être composée d'éléments céramiques comprenant le nitrure de silicium, le carbure de silicium siliconé, un composite alumine-carbure de silicium lié à la mullite ainsi que des composites alumine-zircone.

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