Apparatus and method for heating, thawing and/or demoisturizing

Details Apparatus and method for heating, thawing and/or demoisturizing Apparatus and method for heating, thawing and/or demoisturizing

1981-03-25

1983-01-25

Reynolds, B. A.

Electric heating

Metal heating

Of cylinders

219 1055F, 219 1055D, 219 1055M, 34 1, H05B 680

Patent

active

043705340

ABSTRACT:
An apparatus and method for heating, thawing and/or demoisturizing materials and/or objects by means of microwave energy. In one embodiment for heating particulate material stored in an open-faced rail car, a hood having a length twice that of the car and provided with shielding strips is mounted such that the shielding strips engage the car to form a shield microwave cavity between the hood and the car. The car is then transported beneath the hood, with the shielded cavity being maintained by the shielding strips, and irradiated by microwave energy emitted from magnetrons mounted on the hood. In another embodiment, drilling devices coupled to a microwave source penetrate a substance to be heated. Then, the microwave source is energized and emits microwave energy to the substance at the penetration depth. As the drilling device is extracted, the source is maintained energized for at least a part of the extraction period. Applications in the fields of coal thawing, insect pest control and oil recovery are prime candidates for the disclosed technology.

REFERENCES:
patent: 2500752 (1950-03-01), Hanson et al.
patent: 3505490 (1970-04-01), Gorn
patent: 3560347 (1971-02-01), Knapp et al.
patent: 3569657 (1971-03-01), Levinson
patent: 3601448 (1971-08-01), Stone
patent: 3800858 (1974-04-01), Placek
patent: 3992287 (1976-11-01), Rhys

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