Sealed rotary hearth furnace with central bearing support
Patent
·
OSTI ID:866981
- Carnegie, PA
- Pittsburgh, PA
- Morgan, PA
The furnace has a hearth which rotates inside a stationary closed chamber and is supported therein on vertical cylindrical conduit which extends through the furnace floor and is supported by a single center bearing. The charge is deposited through the furnace roof on the rim of the hearth as it rotates and is moved toward the center of the hearth by rabbles. Externally generated hot gases are introduced into the furnace chamber below the hearth and rise through perforations in the hearth and up through the charge. Exhaust gases are withdrawn through the furnace roof. Treated charge drops from a center outlet on the hearth into the vertical cylindrical conduit which extends downwardly through the furnace floor to which it is also sealed.
- Research Organization:
- Encoal Corp
- DOE Contract Number:
- FC21-90MC27339
- Assignee:
- Salem Furnace Co. (Pittsburgh, PA)
- Patent Number(s):
- US 4834650
- OSTI ID:
- 866981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/432/
bearing
bearing support
below
center
central
chamber
charge
closed
closed chamber
conduit
cylindrical
cylindrical conduit
deposited
downwardly
drops
exhaust
exhaust gas
exhaust gases
extends
extends downwardly
externally
floor
furnace
gases
generated
hearth
hot
hot gas
hot gases
inside
introduced
moved
outlet
perforations
rabbles
rim
rise
roof
rotary
rotates
sealed
single
stationary
support
supported
therein
treated
vertical
vertical cylindrical
withdrawn
bearing
bearing support
below
center
central
chamber
charge
closed
closed chamber
conduit
cylindrical
cylindrical conduit
deposited
downwardly
drops
exhaust
exhaust gas
exhaust gases
extends
extends downwardly
externally
floor
furnace
gases
generated
hearth
hot
hot gas
hot gases
inside
introduced
moved
outlet
perforations
rabbles
rim
rise
roof
rotary
rotates
sealed
single
stationary
support
supported
therein
treated
vertical
vertical cylindrical
withdrawn