Process and apparatus for drying material with indirectly heated driers
and for decontaminating waste gas
    7.
    发明授权
    Process and apparatus for drying material with indirectly heated driers and for decontaminating waste gas 失效
    用间接加热的干燥器干燥材料并净化废气的方法和设备

    公开(公告)号:US6058619A

    公开(公告)日:2000-05-09

    申请号:US354104

    申请日:1999-07-15

    IPC分类号: F26B23/02 F26B21/06

    CPC分类号: F26B23/022

    摘要: A process and apparatus for drying material, particularly sludges, with indirectly heated driers includes a system for the thermal decontamination of exhaust air from the drier. Excess exhaust air from the drier loop is fed as secondary air to the heating boiler or furnace separately from the primary air for combustion of the fuel and to thermally clean the exhaust air from the drier. The exhaust drier gas from the drier remains in the furnace for a period to decontaminate the drier gas, after which it is mixed with the flue gases. The mixture is then removed from the furnace. The system is suitable for operation under normal operating temperatures and at low, below normal operating temperatures.

    摘要翻译: 用间接加热的干燥器干燥材料,特别是淤泥的方法和设备包括用于对来自干燥器的排气进行热去污的系统。 来自干燥回路的过量排出的空气作为二次空气作为二次空气与一次空气分开地供给到加热锅炉或炉内,用于燃烧燃料,并将干燥机的排出空气热清洗。 来自干燥器的排气干燥器气体在炉中保留一段时间以净化干燥气体,之后与烟道气混合。 然后将混合物从炉中取出。 该系统适用于正常工作温度和低于正常工作温度以下的运行。