DYNAMIC CLASSIFIER WITH HOLLOW SHAFT DRIVE MOTOR

A dynamic classifier for a coal pulverizer has an improved drive mechanism which is mounted on top of a pulverizer and concentric with the classifier axis of rotation and is directly controllable. The drive mechanism is a variable-speed DC or AC electric motor having a hollow motor shaft. The motor...

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Bibliographic Details
Main Authors PIEPHO, ROBERT, R, DOUGAN, DONALD, R
Format Patent
LanguageEnglish
French
German
Published 31.08.2005
Edition7
Subjects
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
FEEDING FUEL TO COMBUSTION APPARATUS
GENERATION
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:A dynamic classifier for a coal pulverizer has an improved drive mechanism which is mounted on top of a pulverizer and concentric with the classifier axis of rotation and is directly controllable. The drive mechanism is a variable-speed DC or AC electric motor having a hollow motor shaft. The motor can produce classifier rotor rotational speeds of between 50 and 200 rpm. The classifier rotor is supported from the hollow motor shaft. A coal feed pipe passes through the hollow motor shaft and classifier rotor shaft into the pulverizer.
Bibliography:Application Number: EP19980911821