Heating chamber with inner heating tubes and method of replacing

Details Heating chamber with inner heating tubes and method of replacing Heating chamber with inner heating tubes and method of replacing

1996-02-09

1998-05-05

Bennett, Henry A.

Heating

Tumbler-type rotary - drum furnace

Externally heated drum or associated heating element heats...

432103, 432105, 432245, F27B 710

Patent

active

057465908

ABSTRACT:
Heating chamber rotatable about a longitudinal axis thereof and having a plurality of heating tubes located in the interior thereof, a first end plate to which each of the heating tubes is secured by an end thereof, a second end plate to which each of the heating tubes is secured by the other end thereof, at least one of the ends of each of the heating tubes protruding through a respective opening formed in at least one of end plates, and a respective collar for connecting the at least one end of the respective heating tubes to the outer surface of at least one end plate, includes a respective reduced diameter portion formed in each of the heating tubes, the heating tubes being spaced from one another a greater distance at the at least one end plate than in the interior of the heating chamber; and method of replacing the heating tubes in the heating chamber.

REFERENCES:
patent: 791600 (1905-09-01), Anderson et al.
patent: 2423018 (1947-10-01), Griffoul
patent: 4902461 (1990-02-01), Schippers

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