(57) The apparatus embodies a feeding device (1), which conveys the paste/fibrous feeding
material into a rotating disintegrator (4). In the under part of the apparatus the
drying gasses (6) are being introduced and passed upwards through the slot (8) and
into the disintegrator housing (4). The drying chamber has a conical shape with the
point towards the outlet for the drying gasses (14), where the symmetrical rotating
layer of powder (16), because of the rotation of the disintegrator (4), is being pressed
by the wall of the cone (12) away from the the outlet for the drying air (14) with
a resulting accelerating force (13) which is greater than the force of gravity. The
symmetrical rotating layer of powder (16) is being held in position during the stay
in the drying/floating zone (5). The finally dried material and the spent drying air
is being discharged through the product outlet (17) and (18) in the upper part of
the drying chamber.
A step 2 air volume (9), which has a for the particles moderate temperature, is being
blown from the ring chamber (10) through slots or nozzles (11) into the drying/floating
zone and can for this reason gently after dry the symmetrical rotating layer of powder
(16) as in a fluid bed.
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