Drying and gas or vapor contact with solids – Process – By centrifugal force
Patent
1996-05-07
1997-04-08
Sollecito, John M.
Drying and gas or vapor contact with solids
Process
By centrifugal force
34424, 34425, 34499, 34 63, 34132, 34605, 34187, F26B 508
Patent
active
056176490
ABSTRACT:
A device and method for drying a fluorescent material are provided. The device includes a container having a predetermined space for containing a fluorescent material, a first driver for rotating the container, a heater for heating the container, a vacuum unit for creating a partial vacuum in the container to discharge moist air from the container, a supplier for supplying dry air to the container, an exhausting unit for exhausting the fluorescent material dried in the container, and a controller for controlling the respective device and the first dryer. The drying method includes the steps of placing a cleaned fluorescent material into a dryer, heating the dryer while rotating the dryer, injecting dry air into the dryer and exhausting moist air from the dryer, and vacuum-transferring the fluorescent material from the dryer to a predetermined storage tank. With the device and method, drying a wet fluorescent material without hardening it obviates the need for a grinding process and reduces a drying time and manual processes. Thus, a fluorescent material drying process can be performed by few personnel in a clean working place.
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Gravini Steve
Samsung Display Devices Co. Ltd.
Sollecito John M.
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