Electric heating – Microwave heating – With diverse device
Patent
1997-07-02
1999-10-05
Leung, Philip H.
Electric heating
Microwave heating
With diverse device
219686, 219700, 219762, H05B 678, H05B 680
Patent
active
059618701
ABSTRACT:
An apparatus and method for the processing of a material in a sealed rotating drum by exposing the material to an electromagnetic field, and more particularly to a source of microwave energy, while the material is moving through the drum. The material is moved through the drum by fixed specially shaped fins on the inside of the drum, a freely rotating spiral on the inside of the drum, or placing the drum on a slope to move the material by gravity. Special carriers are placed in the drum to recirculate in the drum and mull and grind the material and keep the drum wall clean. If the material is to be processed by a microwave and the material being processed is microwave absorptive, the carriers can be made of a microwave reflective material such as stainless steel. If the material is to be processed by a microwave and the material being processed is microwave transparent, the carriers can be made of an absorptive material such as magnetic steel.
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