| 摘要 |
A method and apparatus for continuous treatment of particulate material wherein the particulate material is treated in a suspended bed in a stationary reactor, gas is injected into the reactor, in order to maintain the suspended bed, through at least one central gas inlet at the bottom of the reactor, during operation the bed pulsates up and down in the reactor, the circumference of the reactor in at least the lower part of the reactor is reduced downwardly towards the gas inlet, assuming, for example, the form of a truncated cone, and the treated material is dicharged from the reactor via the gas inlet at the bottom of the reactor. Gas is injected through the walls of the reactor in the lower part of the reactor in the area where the circumference of the reactor is reduced. It is thus ensured that it will be possible to maintain at all times a desired volume of material in the reactor, while, simultaneously, the production rate of the single reactor is increased.
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