Patent US2404424A successfully refreshed from Google Patents.
US3922975A
Expired / Lapsed
US
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Method and apparatus for feeding solid waste to a fluid bed disposal apparatus
Assignee: Combustion Power Co Inc
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Filing: 1974-06-24
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Granted: 1975-12-02
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Expires: 1994-06-24
Abstract
Abstract Method and apparatus are disclosed for feeding solid waste to a fluid bed disposal apparatus wherein solid waste is separated by air classification into a heavy low fuel valve fraction which is segregated from the fluid bed apparatus and a lighter particle fraction which is conveyed to an inertial separator stage via a conveying gas stream. In the inertial separation stage the lighter fraction solid waste is separated from the conveying stream and delivered to a storage area from which it is drawn and introduced via an air-lock feed valve to a fluid conduit and into the fluid bed chamber.
Inventors
- 👤 Richard G Reese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:18
CPC Classifications
B; B03; B03B; B03B9/00; B03B9/06; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/28; F; F23; F23G; F23G5/00; F23G5/008; F23G5/02; F23G5/30; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; F23G2201/00; F23G2201/60; F23G2201/80; F23G2203/00; F23G2203/50; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/52; Y10; Y10S; Y10S241/00; Y10S241/38
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
185 words
In a waste disposal apparatus for consuming solid waste with minimal residue including a combustion housing, a bed of granular material, means for supporting the bed of granular material within the housing, means for providing combustion air to The bottom of the bed for maintaining the granular material in a fluidized state, and means for separating heavy particles out from a stream of solid waste material and feeding the remaining light particle fraction in a conveying gas stream to the combustion chamber, the improvement comprising: fluid conduit means for carrying solid waste into the combustion housing, air-lock feed valve means connected to said conduit means for introducing solid waste into said conduit means, storage means for receiving and storing the separated light particle fraction of solid waste material, conveyor means for conveying solid waste from said storage means to said air lock feed valve means, inertial separator means for separating the light particle fraction of the solid waste from the conveying gas stream for delivery to said storage means, and means for returning the conveying gas separated from said particle fraction to the separation means.
Claim 2
Dependent Claim
185 words
In a waste disposal apparatus for consuming solid waste with minimal residue including a combustion housing, a bed of granular material, means for supporting the bed of granular material within the housing, means for providing combustion air to The bottom of the bed for maintaining the granular material in a fluidized state, and means for separating heavy particles out from a stream of solid waste material and feeding the remaining light particle fraction in a conveying gas stream to the combustion chamber, the improvement comprising: fluid conduit means for carrying solid waste into the combustion housing, air-lock feed valve means connected to said conduit means for introducing solid waste into said conduit means, storage means for receiving and storing the separated light particle fraction of solid waste material, conveyor means for conveying solid waste from said storage means to said air lock feed valve means, inertial separator means for separating the light particle fraction of the solid waste from the conveying gas stream for delivery to said storage means, and means for returning the conveying gas separated from said particle fraction to the separation means.
Claim 3
Independent Claim
127 words
The method of feeding solid waste to a fluid bed disposal apparatus comprising the steps of: separating heavy particles of solid waste from a remaining light particle fraction by air classification, delivering the separated light particle fraction to an inertial separation stage in a conveying gas stream, separating the remaining light particle fraction from the conveying gas stream in an inertial separation stage, delivering the separated light particle fraction from the inertial separation stage to a storage area, conveying solid waste material from the storage area to an air-lock feed stage, passing said solid waste through an air-lock feed into a conduit for introduction into a fluid bed combustion housing, and mulching the solid waste output of the inertial separation stage for direction to the storage area.
Claim 4
Independent Claim
127 words
The method of feeding solid waste to a fluid bed disposal apparatus comprising the steps of: separating heavy particles of solid waste from a remaining light particle fraction by air classification, delivering the separated light particle fraction to an inertial separation stage in a conveying gas stream, separating the remaining light particle fraction from the conveying gas stream in an inertial separation stage, delivering the separated light particle fraction from the inertial separation stage to a storage area, conveying solid waste material from the storage area to an air-lock feed stage, passing said solid waste through an air-lock feed into a conduit for introduction into a fluid bed combustion housing, and mulching the solid waste output of the inertial separation stage for direction to the storage area.
Claim 5
Independent Claim
133 words
The method of feeding solid waste to a fluid bed disposal apparatus comprising the steps of: separating heavy particles of solid waste from a remaining light particle fraction by air classification, delivering the separated light particle fraction to an inertial separation stage in a conveying gas stream, separating the remaining light particle fraction from the conveying gas stream in an inertial separation stage, delivering the separated light particle fraction from the inertial separation stage to a storage area, conveying solid waste material from the storage area to an air-lock feed stage, passing said solid waste through an air-lock feed into a conduit for introduction into a fluid bed combustion housing, and returning the separated conveying gas from the inertial separation stage to the air classification stage to serve as the conveying gas stream.
Claim 6
Independent Claim
133 words
The method of feeding solid waste to a fluid bed disposal apparatus comprising the steps of: separating heavy particles of solid waste from a remaining light particle fraction by air classification, delivering the separated light particle fraction to an inertial separation stage in a conveying gas stream, separating the remaining light particle fraction from the conveying gas stream in an inertial separation stage, delivering the separated light particle fraction from the inertial separation stage to a storage area, conveying solid waste material from the storage area to an air-lock feed stage, passing said solid waste through an air-lock feed into a conduit for introduction into a fluid bed combustion housing, and returning the separated conveying gas from the inertial separation stage to the air classification stage to serve as the conveying gas stream.
Claim 7
Dependent Claim
188 words
A waste disposal apparatus for consuming solid waste with minimal residue comprising: a combustion housing; a bed of granular material; means for supporting the bed of granular material within the housing; means for providing combustion air to the bottom of the bed for maintaining the granular material in a fluidized state, and means for feeding solid waste into said bed of granular material including fluid conduit means for carrying solid waste into the combustion housing, air-lock feed valve means connected to said conduit means for introducing solid waste into said conduit means, storage means for receiving and storing the separated light particle fraction of solid waste material, conveyor means for conveying solid waste from said storage means to said air-lock feed valve means, inertial separator means for separating the light particle fraction of the solid waste from a conveying gas stream for delivery to said storage means, air classifier means for separating heavy particles of low fuel value out from a stream of solid waste material, and means for returning to said air classifier means the conveying gas separated from said particle fraction in said inertial separator means.
Claim 8
Dependent Claim
188 words
A waste disposal apparatus for consuming solid waste with minimal residue comprising: a combustion housing; a bed of granular material; means for supporting the bed of granular material within the housing; means for providing combustion air to the bottom of the bed for maintaining the granular material in a fluidized state, and means for feeding solid waste into said bed of granular material including fluid conduit means for carrying solid waste into the combustion housing, air-lock feed valve means connected to said conduit means for introducing solid waste into said conduit means, storage means for receiving and storing the separated light particle fraction of solid waste material, conveyor means for conveying solid waste from said storage means to said air-lock feed valve means, inertial separator means for separating the light particle fraction of the solid waste from a conveying gas stream for delivery to said storage means, air classifier means for separating heavy particles of low fuel value out from a stream of solid waste material, and means for returning to said air classifier means the conveying gas separated from said particle fraction in said inertial separator means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |