F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
F23D 1/00 (2006.01)
Patent
CA 2205778
The present invention is directed to a pulverized coal burner comprising a venturi 4 for contracting flow of a mixture 62 of pulverized coal and primary air toward a central axis of a fuel nozzle 2; a spindle having a cone 10, provided coaxially with the central axis, gradually expanding from an upstream side to a downstream side and causing the mixture to impinge thereon and diffuse, a column 11, extending from the cone 10 and being parallel to the central axis of the fuel nozzle 2, and a cone 12, extending from the column 11 and gradually narrowing from an upstream side to a downstream side; and a distributor 14, having a cone 15 gradually narrowing coaxially with the central axis 3 on the downstream side of the spindle 9 and cylinder 17 extending from the cone 15 and being coaxial and parallel with the central axis of the fuel nozzle 2, and coaxially dividing the flow path.
La présente invention porte sur un brûleur à charbon pulvérisé comprenant un venturi 4 pour concentrer le jet d'un mélange 62 de charbon pulvérisé et d'air primaire vers l'axe central d'un pulvérisateur 2; une tige ayant un cône 10, monté coaxialement à l'axe central, grossissant graduellement de l'amont vers l'aval et obligeant le mélange à le heurter et à se diffuser, une colonne 11 s'étendant à partir du cône 10 parallèlement à l'axe central du pulvérisateur 2, et un cône 12 s'étendant à partir de la colonne 11 et rétrécissant graduellement de l'amont vers l'aval; et un distributeur 14 ayant un cône 15 qui rétrécit graduellement de façon coaxiale à l'axe central 3 du côté aval de la tige 9 et un cylindre 17 s'étendant à partir du cône 15 de façon coaxiale et parallèle à l'axe central du pulvérisateur 2, et divisant coaxialement le tracé du jet.
Kiyama Kenji
Kobayashi Hironobu
Okazaki Hirofumi
Taniguchi Masayuki
Babcock-Hitachi Kabushiki Kaisha
Kirby Eades Gale Baker
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