Low emission U-fired boiler combustion system
    1.
    发明授权
    Low emission U-fired boiler combustion system 失效
    低排放型燃煤锅炉燃烧系统

    公开(公告)号:US6058855A

    公开(公告)日:2000-05-09

    申请号:US119097

    申请日:1998-07-20

    Abstract: At least one main combustion chamber contains at least one pulverized coal burner. Each pulverized coal burner is operatively arranged for minimizing NO.sub.X production and for maintaining a predetermined operating temperature to liquefy ash within the combustion chamber. The combustion chamber includes a slag drain for removing slag from the combustion chamber. A slag screen is positioned in a generally U-shaped furnace flow pattern. The slag screen is positioned between the combustion chamber and a radiant furnace. The radiant furnace includes a reburning zone for in-furnace No.sub.X reduction. The reburning zone extends between a reburning fuel injection source and at least one overfire air injection port for injecting air.

    Abstract translation: 至少一个主燃烧室包含至少一个粉煤燃烧器。 每个粉煤燃烧器可操作地布置成用于使NO x产生最小化并保持预定的操作温度以使燃烧室内的液化灰。 燃烧室包括用于从燃烧室除去渣的炉渣排出口。 炉渣筛位于大致U形炉流程图中。 炉渣筛位于燃烧室和辐射炉之间。 辐射炉包括用于炉内NoX还原的再燃烧区域。 再燃烧区域在再燃燃料喷射源和至少一个用于喷射空气的过火空气喷射端口之间延伸。

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