Apparatus and Method for Gasifying Solid Fuel
    8.
    发明申请
    Apparatus and Method for Gasifying Solid Fuel 审中-公开
    用于气化固体燃料的装置和方法

    公开(公告)号:US20090249691A1

    公开(公告)日:2009-10-08

    申请号:US11883442

    申请日:2006-02-01

    IPC分类号: C10J3/06 C10J3/20

    摘要: Apparatus for gasifying a solid fuel that supplies a solid fuel such as coal by dry condition to a gasification furnace of an entrained-bed type is constructed so as to be able to collect the char discharged from the gasification furnace and re-supply the char to the furnace without using a lock hopper and without changing the char into slurry form.The char discharged from the gasification furnace along with produced gases 53 produced in the gasification furnace is brought into contact with water by a gas cooler 9 and collected. After being dehydrated by a dehydrator 10, the collected char is loaded into a mill 2 or a raw-coal bunker 1. For loading into the raw-coal bunker 1, the char is dried by a drying machine 14, preferably, after the dehydration.According to the present invention, a mixture of the collected char and water can be re-supplied to the gasification furnace without using a lock hopper or a dry feeder. After being dehydrated, the char preferably is further dried and then supplied to the gasification furnace. Since a great deal of moisture is not supplied to the inside of the gasification furnace, it is possible to prevent a temperature of the gasification furnace from decreasing, and thus improve gas conversion efficiency.

    摘要翻译: 将通过干燥状态将固体燃料例如煤供给到固定床型的气化炉的固体燃料的装置被构造成能够收集从气化炉排出的炭并将炭再供给 炉子不使用封闭料斗,而不改变焦炭成浆状。 从气化炉排出的焦炭以及在气化炉中产生的生成气体53通过气体冷却器9与水接触并收集。 在脱水机10脱水后,收集的炭被装载到磨机2或原煤仓1中。为了装载到原煤仓1中,优选用干燥机14干燥焦炭,脱水后 。 根据本发明,可以将收集的炭和水的混合物重新供给气化炉,而不使用锁定料斗或干式进料器。 脱水后,优选进一步干燥,然后供给到气化炉。 由于不向气化炉内部供给大量的水分,因此能够防止气化炉的温度下降,从而提高气体转换效率。