Solid flight conveying screw for furnace

Details Solid flight conveying screw for furnace Solid flight conveying screw for furnace

1997-04-25

1999-01-26

Bennett, Henry A.

Heating

Heating apparatus element having protective cooling structure

Conveyor, chute or work agitator element

198676, 414149, 414197, F27D 308, B65G 3326

Patent

active

058631976

ABSTRACT:
A fluid cooled conveying screw adapted for rotary hearth furnaces. A plurality of solid alternating single and double flights are affixed to an outer barrel. The single flights are at least partially cladded to withstand the rigors of the furnace. The double flights extend partially down the barrel.

REFERENCES:
patent: 3443931 (1969-05-01), Beggs et al.
patent: 3738420 (1973-06-01), Poux et al.
patent: 3764062 (1973-10-01), Brautigam
patent: 3800865 (1974-04-01), Onarheim et al.
patent: 3977515 (1976-08-01), Lewoczko
patent: 4466533 (1984-08-01), Shwayder
patent: 4505222 (1985-03-01), Christian
patent: 4636127 (1987-01-01), Olano et al.
patent: 5529170 (1996-06-01), Schwartz et al.
patent: 5673618 (1997-10-01), Little

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