Feed of material to fluidized beds
AssigneeFlameless Furnaces Limited
InventorArnold P. Pearce
Life of this patent
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Abstract
The invention provides a fluidized bed combuster for fuel or waste material, preferably having a fluidized bed which is arranged to circulate about a horizontal axis, in which one or more baffles are provided to define respective quiet zones adjacent the fluidized bed; material flowing in operation of the bed over the top of the baffle from the fluidized bed to the quiet zone and under the baffle from the quiet zone to the fluidized bed; and means is provided for feeding material to be burnt into the quiet zones to be carried therefrom beneath the baffles into the fluidized bed for combustion therein.
Claims16
A fluidised bed combuster comprising a housing having an air diffuser bed support arranged to support and fluidise a bed of granular material in the housing, and at least one baffle extending in a generally vertical plane and vertically spaced from the bed support to define on one side of the bed a quiet zone of bed material which is not fluidised in operation in communication beneath the baffle with the remainder of the bed which is fluidised in operation, the top of the baffle lying below the upper surface of the bed in operation so that material from the fluidised bed flows over the baffle into the quiet zone, the combuster including feed means arranged to feed material to be burnt into the quiet zone for passage from that zone under the baffle into the fluidised zone in operation.
Dependencies are inferred from the claim text.