Sealed rotary hearth furnace with central bearing support
Abstract
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 Exhaust gases are withdrawn through the furnace roof.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.
- Inventors:
-
- Carnegie, PA
- Pittsburgh, PA
- Morgan, PA
- Issue Date:
- Research Org.:
- Encoal Corp
- OSTI Identifier:
- 866981
- Patent Number(s):
- 4834650
- Assignee:
- Salem Furnace Co. (Pittsburgh, PA)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F27 - FURNACES F27B - FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
F - MECHANICAL ENGINEERING F27 - FURNACES F27D - DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- DOE Contract Number:
- FC21-90MC27339
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- sealed; rotary; hearth; furnace; central; bearing; support; rotates; inside; stationary; closed; chamber; supported; therein; vertical; cylindrical; conduit; extends; floor; single; center; charge; deposited; roof; rim; moved; rabbles; externally; generated; hot; gases; introduced; below; rise; perforations; exhaust; withdrawn; treated; drops; outlet; downwardly; bearing support; closed chamber; cylindrical conduit; exhaust gases; hot gas; exhaust gas; hot gases; extends downwardly; vertical cylindrical; /432/
Citation Formats
Docherty, James P, Johnson, Beverly E, and Beri, Joseph. Sealed rotary hearth furnace with central bearing support. United States: N. p., 1989.
Web.
Docherty, James P, Johnson, Beverly E, & Beri, Joseph. Sealed rotary hearth furnace with central bearing support. United States.
Docherty, James P, Johnson, Beverly E, and Beri, Joseph. Sun .
"Sealed rotary hearth furnace with central bearing support". United States. https://www.osti.gov/servlets/purl/866981.
@article{osti_866981,
title = {Sealed rotary hearth furnace with central bearing support},
author = {Docherty, James P and Johnson, Beverly E and Beri, Joseph},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}