| 摘要 |
<p>The apparatus (10) comprises a channel (22) having an inlet end (38) for receiving particulate material to be dehydrated and an outlet end (36) for discharging the particulate material in a dehydrated condition. A screw conveyor (30) rotatably mounted in the channel (22) advances the particulate material while stirring the particulate material to enhance the release of water and noxious vapours. A fan (40) creates an air current in the channel (22) to entrain water and noxious vapours released by the particulate material. The vapours are directed toward a heating chamber (42) which incinerates dangerous and odoriferous compounds as much as possible. The resulting gaseous media is directed through a passage in a heat-exchange relationship with the channel (22) to elevate the temperature of the particulate material that is being processed and cause same to release water and noxious vapours. The passage is isolated from the channel to avoid direct contact between the burned gases that are released in the atmosphere with yet unburned gases aspirated from the channel.</p> |
