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    • 1. 发明申请
    • A SPOUT-FLUID BED DRYER AND GRANULATOR FOR THE TREATMENT OF WASTE SLURRIES
    • 用于处理废物的SPOUT-流体干燥器和造粒机
    • WO1997047933A1
    • 1997-12-18
    • PCT/CA1997000400
    • 1997-06-06
    • SOCIETE EN COMMANDITE GAZ METROPOLITAINLEGROS, RobertCHAOUKI, JamalBI, Xiao, TaoMACCHI, ArturoRATNANI, Kébir
    • SOCIETE EN COMMANDITE GAZ METROPOLITAIN
    • F26B03/088
    • F26B23/022F26B3/088F26B3/0926F26B3/205Y02P70/40
    • A spout-fluid bed drying system and process is comprised of a spout-fluid bed dryer (10) having a conical shaped lower section (19) provided with a packing of heat exchange particles (15). A cyclone separator (20) is connected to the top (14) of the dryer with separated particles collected by a receiver (24) connected to the leg of the cyclone (20). A vapor fan (38) compresses the air-vapor mixture before it goes to the heat recuperator (32) and mixing chamber (33). A tube-shell type heat exchange (32) wherein effluent gases from the vapor fan (38) are preheated with heat exchange with the outcoming high temperature gases. A combustion and incineration chamber (30) wherein a natural gas burner (31) is installed at the top and the high temperature flame is used to incinerate the effluent gases introduced from the annulus channel of the chamber to have the odors and VOCs destroyed. A mixing chamber (33) wherein high temperature stream from the incineration chamber (30) is mixed with low temperature stream from the vapor fan (38) to serve as the drying media with the temperature maintained at around 400 DEG C. A slurry discharge nozzle (17) is disposed below the packing (15) and connected to a slurry container via piping (60, 18) and a slurry pump (61) for releasing slurry to the surface of the particles within the packing (15). Evaporation of water occurs mostly on the surface of particles by contact with hot drying media. A gas-air mixture is fed to the burner (31) through a feed pipe line (40) wherein fresh air is supplied from an air blower (47).
    • 喷口流化床干燥系统和方法由具有锥形下部(19)的喷口流化床干燥器(10)组成,所述锥形下部部分设置有热交换颗粒(15)的填料。 旋风分离器(20)连接到干燥器的顶部(14),分离的颗粒由连接到旋风分离器(20)的腿部的接收器(24)收集。 蒸气风扇(38)在进入热交换器(32)和混合室(33)之前压缩空气 - 蒸气混合物。 一种管壳式热交换器(32),其中来自蒸汽风扇(38)的流出气体与所输出的高温气体进行热交换而预热。 一种燃烧和焚烧室(30),其中在顶部安装有天然气燃烧器(31),并且使用高温火焰来焚化从室的环形通道引入的废气以使臭味和VOC被破坏。 混合室(33),其中来自焚化室(30)的高温物流与来自蒸气风扇(38)的低温物流混合,用作温度保持在400℃左右的干燥介质。浆料排出喷嘴 (17)设置在所述填料(15)下方,并通过管道(60,18)和浆料泵(61)连接到浆料容器,用于将淤浆释放到所述填料(15)内的颗粒表面。 水的蒸发主要发生在与热干燥介质接触的颗粒表面。 气体 - 空气混合物通过进料管线(40)供给到燃烧器(31),其中从鼓风机(47)供给新鲜空气。