Method and apparatus for heating a workpiece

Details Method and apparatus for heating a workpiece Method and apparatus for heating a workpiece

1976-03-19

1978-01-17

Camby, John J.

Heating

Processes of heating or heater operation

Continous strip, strand or web passed longitudinally through...

432 18, 432 59, 432164, F27B 928

Patent

active

040690083

ABSTRACT:
A steel strip such as stainless steel is passed in uncoiled form through a jet recuperator, an intermediate furnace section, and a main fired furnace section in which a fuel such as natural gas is burned. The exit end of the main furnace section has an opening only slightly greater than the cross-section of the strip. The strip is preheated in the jet recuperator by forcing waste gases from top and bottom waste gas chambers through holes in the bottom and top, respectively, of the waste gas chambers against both sides of the strip. The strip is further heated by the waste gases in the unfired intermediate section and brought to final temperature in the main fired section.

REFERENCES:
patent: 2792206 (1957-05-01), Wagner
patent: 3186694 (1965-06-01), Beggs
patent: 3222042 (1965-12-01), Fritz
patent: 3837794 (1974-09-01), Phillips
patent: 3841614 (1974-10-01), Okuno

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