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Patent Searching and Data


Title:
DRIER
Document Type and Number:
Japanese Patent JPH02293583
Kind Code:
A
Abstract:

PURPOSE: To achieve the drying and classification of wet raw material containing a large amount of powder by a method wherein a classifier is installed at the lower part of a sucking and exhausting hole and a common axis for all rotating pans except the bottom one can be raised and lowered and rotated freely.

CONSTITUTION: When a rotating separator 12, a reduction gear motor 2 and a screw conveyor 15 are dried and wet raw material is thrown into a rotating pan 6 from a supply hole 11, the raw material falls down by the pan 6 and exchanges heat with hot gas and comes in contact with upward hot gas from a blade ring 10 and then is blown up upwards. Particles with large diameters fall down on the pan 6 again and hereafter the same circulation is repeated. Fine particles are carried to the separator 12 and pass through the rotating blades 12d of the separator 12 and are discharged from a sucking and exhausting hole 13 outside the drier. In order to discharge middle size particles and coarse particles, a rotating axis for rotating pans except the bottom one 5e raised to expand the gap 6Y. Total amount of hot gas supplied from a supply hole 14 is not changed but as the amount of hot gas flowing into the gap 6Y is increased, the amount of hot gas flowing into the ring 10 is reduced to reduce a gas velocity and the coarse particles fall down and move toward the conveyor 15.


Inventors:
KONDO SHIGEKI
TAKEYA KUNIO
Application Number:
JP11223489A
Publication Date:
December 04, 1990
Filing Date:
May 02, 1989
Export Citation:
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Assignee:
UBE INDUSTRIES
International Classes:
F26B19/00; B01J2/16; B07B7/083; F26B17/10; F26B20/00; (IPC1-7): B01J2/16; B07B7/083; F26B19/00