Apparatus for heating a vessel

Details Apparatus for heating a vessel Apparatus for heating a vessel

1989-11-13

1990-07-31

Dority, Carroll B.

Heating

Work chamber having heating means

Crucible or pot heating furnace

432156, 432 54, 431170, F27B 1400

Patent

active

049446746

ABSTRACT:
An apparatus such as a crucible furnace for heating a vessel such as a crucible comprises an enclosure surrounding the vessel so that a flow path exists between the enclosure and the vessel which has an outer surface forming the inner boundary of the flow path. The flow path extends all around the vessel. First and second gas fired burners open into the flow path to discharge their hot combustion product gases into the path. Associated with each burner is a respective heat regenerator. When the first burner is in firing mode its emitted hot combustion product gases circulate around the flow path and leave through the second burner, which is in flueing mode, and heat the associated regenerator. Then when the second burner is in firing mode that heated regenerator heats the combustion air used by the second burner. The hot combustion product gases emitted by the second burner flow along the flow path but this time in the opposite direction and leave through the first burner, which is in flueing mode, and heat its associated regenerator.

REFERENCES:
patent: 4455016 (1984-06-01), Urdea
patent: 4604051 (1986-08-01), Davies et al.
patent: 4676744 (1987-06-01), Wray et al.

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