Patent US3883321A successfully refreshed from Google Patents.
US3883321A
Expired / Lapsed
US
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Device for gasification of solid fuels
Assignee: Heinrich Koppers GmbH
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Filing: 1973-10-17
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Granted: 1975-05-13
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Expires: 1993-10-17
Abstract
Abstract A vessel into which a solid fuel and an oxidant are introduced to be gasified therein and from which gasified fuel is discharged, has a bottom portion including a conical chamber communicating with a tubular port. A body of liquid medium is accommodated in the conical chamber and slag produced during the gasification is being entrapped therein. A tubular member has two tubular portions, one of which is accommodated in the tubular port and the other one of which is inclined with respect to the first-mentioned portion, extends into the chamber and is provided with openings connecting the interior of the tubular member with the chamber. The tubular member is driven to rotate about the axis of the port so that the second-mentioned portion cooperates with the interior surface of the chamber to comminute the slag lumps contained in the chamber. A grinding insert is rigidly attached to the port and projects into the chamber so as to enhance the comminuting process. A wear insert is removably attached to the interior wall of the chamber, and the edges of the openings are configurated as crushing portions, so that the comminuting process is further enhanced.
Inventors
- 👤 Wilhelm Haverkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:34
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/46; C10J3/48; C10J3/52; C10J3/526; B; B02; B02C; B02C17/00; B02C17/16; C10J3/485; C10J3/72; C10J3/74; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0953; C10J2300/0956; C10J2300/0959; C10J2300/0973; C10J2300/0976; C10J2300/16; C10J2300/1625; C10J2300/1628
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
233 words
IN A DEVICE FOR GASIFYING SOLID FUELS, A COMBINATION COMPRISING AN UPRIGHT VESSEL INCLUDING AN UPPER PORTION HAVING AN INLET FOR ADMISSION OF SAID FUEL TO BE GASIFIED AND OF AN OXIDANT, A BURNER IN SAID INLET, AN OUTLET FOR DISCHARGING GASIFIED FUEL, AND A BOTTOM PORTION BELOW SAID UPPER PORTION AND HAVING AN INTERIOR SURFACE CIRCUMFERENTIALLY FORMING A DOWNWARDLY CONICALLY CONVERGING BOTTOM CHAMBER HAVING AN AXIS AND CONTAINING A LIQUID MEDIUM FOR ENTRAPPING SLAG FORMED IN SAID UPPER PORTION DURING THE GASIFICATION OF THE SOLID FUEL; A TUBLAR PORT DOWNWARDLY OF AND COAXIALLY MERGING WITH SAID BOTTOM CHAMBER AND COMMUNICATING THEREWITH; COMMINUTING MEANS INCLUDING A TUBLAR MEMBER HAVING A FIRST PORTION ACCOMMODATED IN AND COAXIAL WITH SAID TUBLAR PORT, AND A SECOND PORTION INCLINED WITH RESPECT TO SAID FIRST PORTION AND SITUATED IN SAID BOTTOM CHAMBER PROXIMATE TO SAID INTERIOR SURFACE THEREOF AND DEFINING THEREWITH A COMMINUTING GAP, SAID SECOND PORTION BEING PROVIDED WITH AT LEAST ONE APERTURE CONNECTING THE INTERIOR OF SAID TUBLAR MEMBER WITH SAID BOTTOM CHAMBER FOR DISCHARGING SLAG PARTICLES BELOW A PREDETERMINED SIZE FROM SAID BOTTOM CHAMBER; AND DRIVE MEANS FOR ROTATING SAID TUBLAR MEMBER ABOUT THE AXIS OF SAID FIRST PORTION THEREOF SO THAT SAID SECOND PORTION CONICALLY ORBITS ABOUT SAID AXIS WITH ATTENDANT ORGITING OF SAID COMMINUTING GAP, AND COOPERATES WITH SAID INTERIOR SURFACE TO COMMINUTE THE SLAG IN SAID BOTTOM CHAMBER TO SAID PREDETERMINED SIZE.
Claim 2
Dependent Claim
233 words
IN A DEVICE FOR GASIFYING SOLID FUELS, A COMBINATION COMPRISING AN UPRIGHT VESSEL INCLUDING AN UPPER PORTION HAVING AN INLET FOR ADMISSION OF SAID FUEL TO BE GASIFIED AND OF AN OXIDANT, A BURNER IN SAID INLET, AN OUTLET FOR DISCHARGING GASIFIED FUEL, AND A BOTTOM PORTION BELOW SAID UPPER PORTION AND HAVING AN INTERIOR SURFACE CIRCUMFERENTIALLY FORMING A DOWNWARDLY CONICALLY CONVERGING BOTTOM CHAMBER HAVING AN AXIS AND CONTAINING A LIQUID MEDIUM FOR ENTRAPPING SLAG FORMED IN SAID UPPER PORTION DURING THE GASIFICATION OF THE SOLID FUEL; A TUBLAR PORT DOWNWARDLY OF AND COAXIALLY MERGING WITH SAID BOTTOM CHAMBER AND COMMUNICATING THEREWITH; COMMINUTING MEANS INCLUDING A TUBLAR MEMBER HAVING A FIRST PORTION ACCOMMODATED IN AND COAXIAL WITH SAID TUBLAR PORT, AND A SECOND PORTION INCLINED WITH RESPECT TO SAID FIRST PORTION AND SITUATED IN SAID BOTTOM CHAMBER PROXIMATE TO SAID INTERIOR SURFACE THEREOF AND DEFINING THEREWITH A COMMINUTING GAP, SAID SECOND PORTION BEING PROVIDED WITH AT LEAST ONE APERTURE CONNECTING THE INTERIOR OF SAID TUBLAR MEMBER WITH SAID BOTTOM CHAMBER FOR DISCHARGING SLAG PARTICLES BELOW A PREDETERMINED SIZE FROM SAID BOTTOM CHAMBER; AND DRIVE MEANS FOR ROTATING SAID TUBLAR MEMBER ABOUT THE AXIS OF SAID FIRST PORTION THEREOF SO THAT SAID SECOND PORTION CONICALLY ORBITS ABOUT SAID AXIS WITH ATTENDANT ORGITING OF SAID COMMINUTING GAP, AND COOPERATES WITH SAID INTERIOR SURFACE TO COMMINUTE THE SLAG IN SAID BOTTOM CHAMBER TO SAID PREDETERMINED SIZE.
Claim 3
Dependent Claim
46 words
A combination as defined in claim 1, wherein the generatrices of said interior surface enclose an acute angle with the axis of said bottom chamber which is larger than an acute angle which is included between said second portion and said axis of said bottom chamber.
Claim 4
Dependent Claim
24 words
A combination as defined in claim 1, wherein said at least one aperture is an elongated slot extending axially of said second tubular portion.
Claim 5
Dependent Claim
45 words
A combination as defined in claim 1, further comprising a grinding insert accommodated in and rigidly connected to said bottom portion of said vessel; and wherein said tubular member cooperates with said grinding insert so as to comminute the slag contained in said bottom portion.
Claim 6
Dependent Claim
55 words
A combination as defined in claim 1, further comprising a grinding insert accommodated in and rigidly connected to said tubular port and at least partially projecting into said bottom chamber; and wherein said tubular member cooperates with said interior surface and said grinding insert so as to comminute the slag contained in said bottom chamber.
Claim 7
Dependent Claim
45 words
A combination as defined in claim 1, further comprising at least one wear insert removably attached to said interior surface of said bottom chamber; and wherein said tubular member cooperates with said wear insert so as to comminute the slag contained in said bottom chamber.
Claim 8
Dependent Claim
26 words
A combination as defined in claim 1, wherein said second portion further comprises a plurality of crushing portions extending radially outwardly of said second tubular portion.
Claim 9
Dependent Claim
55 words
A combination as defined in claim 1, said tubular member further comprising a plurality of aperture means extending axially of said second portion of said tubular member and connecting the interior of said tubular member with the interior of said bottom chamber, and a plurality of crushing portions extending radially outwardly of said second portion.
Claim 10
Dependent Claim
28 words
A combination as defined in claim 8, wherein said axially extending aperture means are slots including elongated edges, and wherein said edges are configurated as said crushing portions.
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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |