Internal circulation fluidized bed (ICFB) combustion system and method
of operation thereof
    3.
    发明授权
    Internal circulation fluidized bed (ICFB) combustion system and method of operation thereof 失效
    内循环流化床(ICFB)燃烧系统及其运行方法

    公开(公告)号:US5401130A

    公开(公告)日:1995-03-28

    申请号:US173539

    申请日:1993-12-23

    摘要: A fluidized bed combustion system (10) particularly suited for use to effect the incineration, i.e., combustion, therewith of wood waste/sludge mixtures that have high moisture and ash content which makes them difficult to burn. The fluidized bed combustion system (10) includes a fluidized bed combustor (12) embodying a fluidized bed (24) composed of bed solids. Air is injected into the fluidized bed (24) through an air distributor (28) to establish a first controlled fluidizing velocity zone and a second controlled fluidizing velocity zone therewithin. Material (42b) is introduced into the fluidized bed combustor (12) above the second controlled fluidizing velocity zone. Bed solids are projected from the first controlled fluidizing velocity zone to the second controlled fluidizing velocity zone whereupon the bed solids rain down upon the material (42b) and effect a covering thereof. The material (42b) is then dried and thereafter combusted. Inerts/tramp materials/clinkers as well as large diameter solids entrained with the material (42b) are segregated therefrom and then are removed (14,200) from the fluidized bed combustor (12).

    摘要翻译: 流化床燃烧系统(10)特别适于用于实现焚烧,即燃烧具有高水分和灰分的木材废物/污泥混合物,这使得它们难以燃烧。 流化床燃烧系统(10)包括实现由床固体组成的流化床(24)的流化床燃烧器(12)。 空气通过空气分配器(28)注入到流化床(24)中,以在其中建立第一受控流化速度区和第二受控流化速度区。 材料(42b)被引入第二受控流化速度区之上的流化床燃烧器(12)。 床固体从第一受控流化速度区域投射到第二受控流化速度区域,随后床固体在材料(42b)上下降并影响其覆盖物。 然后将材料(42b)干燥并随后燃烧。 惰性物质/杂质材料/熟料以及与材料(42b)夹带的大直径固体与其分离,然后从流化床燃烧器(12)中除去(14,200)。