Industrial electric heating furnaces – Resistance furnace device – With heating element detail
Patent
1983-04-05
1986-11-18
Bartis, A.
Industrial electric heating furnaces
Resistance furnace device
With heating element detail
201 19, 219284, 219288, 373 29, 373 41, 373115, 373122, F27D 1104, F27B 1109, H05B 360
Patent
active
046240039
ABSTRACT:
An apparatus for electrically heating conductive bulk materials by resistance Joule effect heating includes end and side walls defining an oven chamber having an inlet and an outlet. A plurality of pairs of generally planar electrode plates are angularly mounted with respect to the opposed end walls of the chamber and are electrically disconnected from one another. The electrode plates mounted to each end wall are disposed at the same angle and are arranged such that the upper edge of each electrode plate is at a different distance from the end wall than the lower edge of the plate, so that the planes of the plurality of electrode plates mounted to each end wall are substantially parallel and vertically displaced from each other. The electrical supply for each pair of electrodes plates is electrically isolated from that of each other pair. The amount of energy supplied to each pair of electrode plates is adjustable. The electrode plates may be provided with current conductor bars projecting from the planar surface of the bars into the bulk material. The extent to which the conductor bars extend into the material may be adjustable. A rotatable bulk material distributing plate may be provided at the chamber inlet. The chamber outlet may include a plurality of emptying apertures each provided with outlet cones.
REFERENCES:
patent: 843776 (1907-02-01), Taylor
patent: 884563 (1908-04-01), Brimdley
patent: 935344 (1909-09-01), White
patent: 1013189 (1912-01-01), Louvrier
patent: 2118973 (1938-05-01), Hansgirg
patent: 2270245 (1942-01-01), Barker
patent: 3190470 (1965-06-01), Ritter
patent: 4082543 (1978-04-01), Beggs et al.
patent: 4261857 (1981-04-01), Nakao
Eirich Hubert
Eirich Paul
Eirich Walter
Goldschmidt Erwin
Bartis A.
Eirich Hubert
Eirich Paul
Eirich Walter
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