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US 5,294,095 AGranted
Fluidized bed with submerged infrared lamps
AssigneeBGK Finishing Systems, Inc.
InventorsJames E. Heath, John R. Eppeland
Life of this patent
Estimating the term…
Abstract
An apparatus is disclosed for heat treating a product. The apparatus includes a retort having a predetermined volume for receiving a bed of fluidizing particles at having a predetermined elevation within the volume and a plurality of electrically powered infrared radiation lamps. The lamps are submerged within the bed of fluidizing particles.
Claims22
Apparatus for heat treating a product comprising:
- means defining a volume for receiving a bed of fluidized particles having a predetermined elevation within said volume;
- a bed of fluidized particles, having a predetermined elevation, disposed within said volume;
- a plurality of electrically powered infrared radiation generating lamps, for generating infrared radiation heat for heating said bed of fluidized particles, disposed within said bed with said particles surrounding each of said lamps for said particles opposing said lamps to be exposed to infrared radiation generated by said lamps;
- and
- said plurality of lamps divided into a plurality of separately controllable zones of said lamps with lamps of each zone operable independent of others of said zones to permit varying infrared intensity between lamps of different zones.
2 more elements
Apparatus for heat treating a product comprising:
- means defining a volume for receiving a bed of fluidized particles having a predetermined elevation within said volume;
- a bed of fluidized particles, having a predetermined elevation, disposed within said volume;
- a plurality of electrically powered infrared radiation generating lamps, for generating infrared radiation heat for heating said bed of fluidized particles, disposed within said bed with said particles surrounding each of said lamps for said particles opposing said lamps to be exposed to infrared radiation generated by said lamps;
- said plurality of lamps divided into a plurality of separately controllable zones of said lamps with lamps of each zone operable independent of others of said zones to permit varying infrared intensity between lamps of different zones;
- a plurality of infrared transparent conduits surrounding each of said lamps;
- and
- wherein said conduits are quartz.
4 more elements
Apparatus for heat treating a product comprising:
- means defining a volume for receiving a bed of fluidized particles having a predetermined elevation within said volume;
- a bed of fluidized particles, having a predetermined elevation, disposed within said volume;
- a plurality of electrically powered infrared radiation generating lamps, for generating infrared radiation heat for heating said bed of fluidized particles, disposed within said bed with said particles surrounding each of said lamps for said particles opposing said lamps to be exposed to infrared radiation generated by said lamps;
- said plurality of lamps divided into a plurality of separately controllable zones of said lamps with lamps of each zone operable independent of others of said zones to permit varying infrared intensity between sources of different zones;
- a plurality of infrared transparent conduits surrounding each of said lamps;
- and
- said conduits and said lamps are mutually sized for opposing surfaces of said lamps and said conduits to define a plurality of air flow passages surrounding said lamps, and cooling means for supplying a flow of cooling fluid to said passages so as to cool said lamps.
4 more elements
Apparatus for heat treating a product, comprising:
- a retort having walls for defining a predetermined volume;
- a bed of fluidized particles disposed within said predetermined volume;
- a plurality of electrically powered infrared radiation generating lamps, for generating infrared radiation heat for heating said bed of fluidized particles, each of said lamps disposed submerged within said bed and surrounded by said particles for said particles surrounding said lamps to be exposed to infrared radiation generated by said lamps.
An apparatus for heat treating a product, comprising:
- a retort having walls for defining a predetermined volume;
- a bed of fluidized particles disposed within said predetermined volume;
- a plurality of electrically powered infrared radiation generating lamps, for generating infrared radiation heat for heating said bed of fluidized particles, each of said lamps disposed submerged within said bed and surrounded by said particles for said particles surrounding said lamps to be exposed to infrared radiation generated by said lamps;
- a plurality of infrared transparent conduits surrounding each of said lamps;
- and
- wherein said conduits are quartz.
3 more elements
An apparatus for heat treating a product, comprising:
- a retort having walls for defining a predetermined volume;
- a bed of fluidized particles disposed within said predetermined volume;
- a plurality of electrically powered infrared radiation generating lamps, for generating infrared radiation heat for heating said bed of fluidized particles, each of said lamps disposed submerged within said bed and surrounded by said particles for said particles surrounding said lamps to be exposed to infrared radiation generated by said lamps;
- a plurality of infrared transparent conduits surrounding each of said lamps;
- and
- wherein said conduits are mutually disposed for a fluidized bed to flow around and between said conduits.
3 more elements
An apparatus for heat treating a product, comprising:
- a retort having walls for defining a predetermined volume;
- a bed of fluidized particles disposed within said predetermined volume;
- a plurality of electrically powered infrared radiation generating lamps, for generating infrared radiation heat for heating said bed of fluidized particles, each of said lamps disposed submerged within said bed and surrounded by said particles for said particles surrounding said lamps to be exposed to infrared radiation generated by said lamps;
- a plurality of infrared transparent conduits surrounding each of said lamps;
- and
- wherein said conduits and said lamps are mutually sized for opposing surfaces of said lamps and said conduits to define a plurality of air flow passages surrounding said lamps, cooling means for supplying a flow of a cooling flow to said passages.
3 more elements
A heat treating apparatus comprising:
- means including first and second opposing sidewalls for defining a volume for receiving a bed of fluidized particles having a predetermined elevation within said volume;
- a bed of fluidized particles, having a predetermined elevation, disposed within said volumes;
- a plurality of conduits of infra-red radiation transparent material disposed within said bed of fluidized particles beneath said predetermined elevation with said conduits extending between said sidewalls;
- a plurality of electrically powered sources of infra-red radiation for generating infra-red radiation heat for treating said bed of fluidized particles, a one of said sources disposed within each one of said conduits so as to be protected by respective ones of said conduits from said fluidized particles of said bed of fluidized particles;
- and
- said plurality of sources including a plurality of separately controllable zones of said sources with each zone operable independent of others of said zones to permit varying infrared intensity between sources of different zones.
3 more elements
An apparatus for heat treating a product comprising:
- means defining a volume for receiving a bed of fluidized particles having a predetermined elevation disposed within said volume;
- a bed of fluidized particles, having a predetermined elevation, disposed within said volume;
- a plurality of electrically powered infrared radiation generating lamps, for generating infrared radiation heat for heating said bed of fluidized particles, disposed within said bed with said particles surrounding each of said lamps for said particles opposing said lamps to be exposed to infrared radiation generated by said lamps;
- said plurality of lamps divided into a plurality of separately controllable zones of said lamps with lamps of each zone operable independent of others of said zones to permit varying infrared intensity between lamps of different zones;
- and
- a plurality of infrared transparent conduits surrounding each of said lamps.
3 more elements
An apparatus for heat treating a product, comprising:
- a retort having walls for defining a predetermined volume;
- a bed of fluidized particles disposed within said predetermined volume;
- a plurality of electrically powered infrared radiation generating lamps, for generating infrared radiation heat for heating said bed of fluidized particles, each of said lamps disposed submerged within said bed and surrounded by said particles for said particles surrounding said lamps to be exposed to infrared radiation generated by said lamps;
- and
- a plurality of infrared transparent conduits surrounding each of said lamps.
2 more elements
Dependencies are inferred from the claim text.