Sealed rotary hearth furnace
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 4, 1989
Grant Date -
N/A
app pub date -
Jun 14, 1988
filing date -
Jun 14, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The furnace has a hearth which rotates inside a stationary closed chamber and is supported therein on circumferentially spaced rollers the shafts of which extend outside the furnace and are cantilevered in bearings. The shafts are sealed to the furnace wall by mechanical and pressurized gas sealing means. 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 Exhaust gases are withdrawn through the furnace roof.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 a soaking pit which extends downwardly through the furnace floor to which it is also sealed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully