Hybrid fluidized bed and pulverized coal combustion system and a process
utilizing said system
    1.
    发明授权
    Hybrid fluidized bed and pulverized coal combustion system and a process utilizing said system 失效
    混合流化床和粉煤燃烧系统以及利用该系统的方法

    公开(公告)号:US4993332A

    公开(公告)日:1991-02-19

    申请号:US416312

    申请日:1989-09-13

    Abstract: A hybrid combustion system is provided combining advantages of a fluidized bed combustion portion and a pulverized coal combustion portion. The former portion includes a fluidized bed chamber, a coal mill without an air separator, a recycling duct connected to the coal mill, a coal supply duct, and a spray feeder. The fluidized coal combustion portion includes a pulverizing coal mill with air separator, a blowing duct for blowing ground coal, at least one pulverized coal burner and an air recycling duct for recycling combustion air. Fluidized bed combustion takes place in a lower part of the system and pulverized coal combustion takes place above the fluidized bed combustion. Each of the portions may be independently operated of the other. A main combustion chamber is common to both the fluidized bed portion and the pulverized coal portion. A related process is also described.

    Abstract translation: PCT No.PCT / HU88 / 00070 Sec。 371日期:1989年9月13日 102(e)日期1989年9月13日PCT提交1988年10月27日PCT公布。 出版物WO89 / 04940 日期:1989年6月1日。提供了一种混合燃烧系统,其结合流化床燃烧部分和粉煤燃烧部分的优点。 前一部分包括流化床室,没有空气分离器的煤磨机,连接到煤磨机的回收管道,煤供应管道和喷射进料器。 流化煤燃烧部分包括具有空气分离器的粉煤磨机,用于吹入煤的吹风管,至少一个粉煤燃烧器和用于再循环燃烧空气的空气循环管道。 流化床燃烧发生在系统的下部,粉煤燃烧发生在流化床燃烧之上。 每个部分可以彼此独立地操作。 主燃烧室对于流化床部分和粉煤部分是共同的。 还描述了相关过程。

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