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A fluidized bed boiler and a high temperature separator used therein. Each separator consists of a horizontal S-shaped passage formed in a casted block and having an inlet for receiving flue gases from the boiler. A divider wall divides a portion of the passage into a dense-phase gas bypass and a ve

A fluidized bed boiler and a high temperature separator used therein. Each separator consists of a horizontal S-shaped passage formed in a casted block and having an inlet for receiving flue gases from the boiler. A divider wall divides a portion of the passage into a dense-phase gas bypass and a vertical-flow ash collecting chamber. As a result flyash of a diameter (50 m

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A fluidized bed boiler comprising a furance section, a plurality of separators disposed adjacent said furnace section for receiving flue gases from said furnace section and separating fine particulate material from said gases, each separator comprising a casted block having an curved inlet passage f

A fluidized bed boiler comprising a furance section, a plurality of separators disposed adjacent said furnace section for receiving flue gases from said furnace section and separating fine particulate material from said gases, each separator comprising a casted block having an curved inlet passage formed therein, a portion of said solid particles being forced against a curved wall portion of said inlet passage by centrifugal forces to separate said solid particles from said gases, said block including partition means for dividing the other end portion of said passage into two branch passages, a wall portion of one of said branch passages being coextensive with said curved wall portion to receive said separated solid particles, the other branch passage adapted to receive the separated gases and discharge said gases from an end thereof extending flush with a second surface of said block, the discharge end of the other branch passage of a portion of said separators extending perpendicular to said second surface and the discharge end of the other branch passage of the remaining portion of said separators extending at an angle to said second surface and said separators are stacked in a vertical direction adjacent said furnace section, with the perpendicularly extending and the angularly extending discharge ends of their respective other branch passages extending in an alternating relationship.