Patent US4325267A successfully refreshed from Google Patents.
US4433978A
Expired / Lapsed
US
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Fluidized bed gasification ash reduction and removal system
Assignee: United States Department of Energy
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Filing: 1982-01-21
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Granted: 1984-02-28
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Expires: 2002-01-21
Abstract
Abstract In a fluidized bed gasification system an ash removal system to reduce the particulate ash to a maximum size or smaller, allow the ash to cool to a temperature lower than the gasifier and remove the ash from the gasifier system. The system consists of a crusher, a container containing level probes and a means for controlling the rotational speed of the crusher based on the level of ash within the container.
Inventors
- 👤 Carl E. Schenone
- 👤 Joseph Rosinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:28
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/06; B; B01; B01J; B01J8/00; B01J8/001; C10J; C10J3/00; C10J3/46; C10J3/48; C10J3/482; C10J3/52; C10J3/523; C10J3/72; C10J3/723; C10J3/78; C10J3/82; C10J3/84; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
64 words
A fluidized bed gasification system comprising: a fluidized bed gasifier for gasifying organic material; a crusher apparatus disposed below said gasifier; a container disposed below said crusher apparatus for conducting waste material from said gasifier; detection means for detecting the level of said waste material in said container; and control means responsive to said detection means for controlling the operation of said crusher apparatus.
Claim 2
Dependent Claim
64 words
A fluidized bed gasification system comprising: a fluidized bed gasifier for gasifying organic material; a crusher apparatus disposed below said gasifier; a container disposed below said crusher apparatus for conducting waste material from said gasifier; detection means for detecting the level of said waste material in said container; and control means responsive to said detection means for controlling the operation of said crusher apparatus.
Claim 3
Dependent Claim
41 words
The gasification system according to claim 1, wherein said control means comprises: an electrical signal processing circuit; and said detection means comprises: a first level detector probe partially disposed within said container and electrically connected to said electrical signal processing circuit.
Claim 4
Dependent Claim
36 words
The gasification system according to claim 2 wherein said detection means further comprises a second level detector partially disposed within said container below said first level detector and electrically connected to said electrical signal processing circuit.
Claim 5
Dependent Claim
44 words
The gasification system according to claim 2, wherein said crusher apparatus is disposed between and connected to said gasifier above said crusher apparatus and said container below said crusher apparatus, said crusher apparatus comprising: a crusher disposed within a housing; and, crusher motive means.
Claim 6
Dependent Claim
25 words
The gasification system according to claim 4, wherein said signal processing circuit is electrically connected to and controls the operation of said crusher motive means.
Claim 7
Dependent Claim
186 words
A fluidized bed gasification system comprising: a fluidized bed gasifier for gasifying organic material; a container disposed below said gasifier for conducting waste material from said gasifier; detection means partially disposed in said container for detecting and determining the level of said waste material in said container, said detection means comprising an electrical signal processing circuit, and a first level detector probe partially disposed within said container and electrically connected to said electrical signal processing circuit; a crusher apparatus disposed between and connected to said gasifier above said crusher apparatus and said container below said crusher apparatus, said crusher apparatus comprising a crusher disposed within a housing, and crusher motive means; and wherein said signal processing circuit is electrically connected to and controls the operation of said crusher motive means, and wherein said signal processing circuit causes said crusher motive means to stop when the level of said waste in said container is at or above the level of said first level detector probe and to start when the level of said waste in said container is below the level of said first level detector probe.
Claim 8
Dependent Claim
186 words
A fluidized bed gasification system comprising: a fluidized bed gasifier for gasifying organic material; a container disposed below said gasifier for conducting waste material from said gasifier; detection means partially disposed in said container for detecting and determining the level of said waste material in said container, said detection means comprising an electrical signal processing circuit, and a first level detector probe partially disposed within said container and electrically connected to said electrical signal processing circuit; a crusher apparatus disposed between and connected to said gasifier above said crusher apparatus and said container below said crusher apparatus, said crusher apparatus comprising a crusher disposed within a housing, and crusher motive means; and wherein said signal processing circuit is electrically connected to and controls the operation of said crusher motive means, and wherein said signal processing circuit causes said crusher motive means to stop when the level of said waste in said container is at or above the level of said first level detector probe and to start when the level of said waste in said container is below the level of said first level detector probe.
Claim 9
Dependent Claim
42 words
The gasification system according to claim 5, wherein said signal processing circuit causes said crusher motive means to slow as the level of said waste in said container rises and to accelerate as the level of said waste in said container falls.
Claim 10
Dependent Claim
44 words
The gasification system according to claim 3, wherein said crusher apparatus is disposed between and connected to said gasifier above said crusher apparatus and said container below said crusher apparatus, said crusher apparatus comprising: a crusher disposed within a housing; and, crusher motive means.
Claim 11
Dependent Claim
25 words
The gasification system according to claim 8, wherein said signal processing circuit is electrically connected to and controls the operation of said crusher motive means.
Claim 12
Dependent Claim
62 words
The gasification system according to claim 9, wherein said signal processing circuit causes said crusher motive means to stop when the level of said waste in said container is at or above the level of said first level detector probe and to start when the level of said waste in said container is below the level of said second level detector probe.
Claim 13
Dependent Claim
42 words
The gasification system according to claim 9, wherein said signal processing circuit causes said crusher motive means to slow as the level of said waste in said container rises and to accelerate as the level of said waste in said container falls.
Claim 14
Dependent Claim
44 words
The gasification system according to claim 1, wherein said crusher apparatus is disposed between and connected to said gasifier above said crusher apparatus and said container below said crusher apparatus, said crusher apparatus comprising: a crusher disposed within a housing; and, crusher motive means.
Claim 15
Dependent Claim
90 words
A fluidized bed gasification system wherein organic materials are reduced to a useful gas and a solid particulate waste, comprising: a fluidized bed gasifier; and a waste removal subsystem, further comprising: a rotary crusher apparatus disposed below said gasifier; a container disposed below said crusher apparatus for conducting said particulate waste from said gasifier; detection means partially disposed in said container for detecting and determining the level of said particulate waste in said container; and control means responsive to said detection means for controlling the operation of said crusher apparatus.
Claim 16
Dependent Claim
90 words
A fluidized bed gasification system wherein organic materials are reduced to a useful gas and a solid particulate waste, comprising: a fluidized bed gasifier; and a waste removal subsystem, further comprising: a rotary crusher apparatus disposed below said gasifier; a container disposed below said crusher apparatus for conducting said particulate waste from said gasifier; detection means partially disposed in said container for detecting and determining the level of said particulate waste in said container; and control means responsive to said detection means for controlling the operation of said crusher apparatus.
Claim 17
Dependent Claim
41 words
The gasification system according to claim 13, wherein said control means comprises: an electrical signal processing circuit; and said detection means comprises: a first level detector probe partially disposed within said container and electrically connected to said electrical signal processing circuit.
Claim 18
Dependent Claim
37 words
The gasification system according to claim 14 wherein said level detection means further comprises a second level detector partially disposed within said container below said first level detector and electrically connected to said electrical signal processing circuit.
Claim 19
Dependent Claim
45 words
The gasification system according to claim 14, wherein said crusher apparatus is disposed between and connected to said gasifier above said crusher apparatus and said container below said crusher apparatus, said crusher apparatus comprising: a rotary crusher disposed within a housing; and crusher motive means.
Claim 20
Dependent Claim
25 words
The gasification system according to claim 16, wherein said signal processing circuit is electrically connected to and controls the operation of said crusher motive means.
Claim 21
Dependent Claim
62 words
The gasification system according to claim 17, wherein said signal processing circuit causes said crusher motive means to stop when the level of said waste in said container is at or above the level of said first level detector probe and to start when the level of said waste in said container is below the level of said first level detector probe.
Claim 22
Dependent Claim
42 words
The gasification system according to claim 17, wherein said signal processing circuit causes said crusher motive means to slow as the level of said waste in said container rises and to accelerate as the level of said waste in said container falls.
Claim 23
Dependent Claim
45 words
The gasification system according to claim 15, wherein said crusher apparatus is disposed between and connected to said gasifier above said crusher apparatus and said container below said crusher apparatus, said crusher apparatus comprising: a rotary crusher disposed within a housing; and crusher motive means.
Claim 24
Dependent Claim
25 words
The gasification system according to claim 20, wherein said signal processing circuit is electrically connected to and controls the operation of said crusher motive means.
Claim 25
Dependent Claim
62 words
The gasification system according to claim 21, wherein said signal processing circuit causes said crusher motive means to stop when the level of said waste in said container is at or above the level of said first level detector probe and to start when the level of said waste in said container is below the level of said second level detector probe.
Claim 26
Dependent Claim
42 words
The gasification system according to claim 21, wherein said signal processing circuit causes said crusher motive means to slow as the level of said waste in said container rises and to accelerate as the level of said waste in said container falls.
Claim 27
Dependent Claim
46 words
The gasification system according to claim 13, wherein said crusher apparatus is disposed between and connected to said gasifier above said crusher apparatus and said container below said crusher apparatus, said crusher apparatus comprising: a rotary crusher disposed within a housing; and a crusher motive means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-27 | 1987-08-29 | 1988-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-27 | 1991-08-29 | 1992-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-27 | 1995-08-29 | 1996-02-28 | $7700.00 | Window Closed / Lapsed |