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    • 8. 发明授权
    • Fluidized bed heat treatment furnace
    • 流化床热处理炉
    • US5832848A
    • 1998-11-10
    • US538703
    • 1995-10-03
    • Ray William ReynoldsonAndrew Simpson Fitchett
    • Ray William ReynoldsonAndrew Simpson Fitchett
    • C21D1/53C21D1/76F23C10/00F23C10/28F27B9/02F27B9/08F27B9/24F27B9/30F27B9/40F27B15/00F23L1/00
    • C21D1/53F23C10/00F23C10/28F27B15/00F27B9/084F27B9/3005F27B9/40C21D1/76F27B2009/2484F27B9/023
    • A fluidized bed heat treatment apparatus is provided to be heated by combusting fuel gas in a manner to minimize or prevent the exhaust of carbon monoxide, the apparatus including a retort containing refractory particles to be fluidized, a first inlet in a lower region of the retort for introducing fuel/air mixture into the retort, a second inlet in a lower region of the retort for introducing secondary air into the retort, a temperature sensor located above the first and second inlets, a flame initiator located above the refractory particles, an externally located mixer to mix fuel and air in desired proportions and to supply same to the first inlet, and a control device arranged to control said externally located mixer in response to temperatures sensed by said temperature sensor whereby when the temperature sensor is below a predetermined temperature indicative of the bed being substantially not fluidized, a stoichiometric fuel/air mixture is supplied to the first inlet and when the temperature sensor senses a temperature above the predetermined level indicative of the bed being substantially fluidized, a less than stoichiometric fuel/air mixture is supplied to the first inlet with secondary air being supplied through said second inlet.
    • 提供了一种流化床热处理装置,以通过燃烧燃料气体来加热,以最小化或防止一氧化碳的排放,该装置包括含有待流化的耐火颗粒的蒸馏器,蒸馏器的下部区域中的第一入口 用于将燃料/空气混合物引入蒸馏器中,在蒸馏器的下部区域中的第二入口用于将二次空气引入蒸馏器中,位于第一和第二入口上方的温度传感器,位于耐火颗粒上方的火焰引发剂,外部 定位的混合器以按所需比例混合燃料和空气并将其提供给第一入口;以及控制装置,其布置成响应于所述温度传感器感测到的温度控制所述外部位于混合器,由此当温度传感器低于预定温度时 的床基本上不被流化,化学计量的燃料/空气混合物被供应到第一入口, 温度传感器感测高于指示床基本上流化的预定水平的温度,将少于化学计量的燃料/空气混合物供应到第一入口,二次空气通过所述第二入口供应。