US4243384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary kiln
Assignee: FLSmidth and Co AS
•
Filing: 1979-04-10
•
Granted: 1981-01-06
•
Expires: 1999-04-10
Abstract
Abstract A rotary kiln (1) having a plurality of cooler tubes (2) arranged in a planetary fashion therearound. The cooler tubes (2) rest in saddles in a ring-shaped member (3) surrounding the rotary kiln and are retained in the saddles by caps (4) with clearance so as to permit axial movement and radial heat expansion of the cooler tubes (2). The ring-shaped member (3) is attached to the kiln (1) by a plurality of ring support members having a first flange (6) attached to inner surface portions of the ring-shaped member, a second flange (5) attached to outer surface portions of the kiln (1) and an intermediate web member (7) having a substantially frusto-conical surface and connecting the first flange (6) and the second flange (5). Preferably, the first flange (6) and web member (7) have slots (8) extending axially of the kiln across their entire lengths. The slots (8) can extend axially of the kiln across the second flange (5) as well. Alternatively, the slots (8) in each support member are angularly offset about the circumference of the kiln (1) in relation to the slots (8) of an adjacent ring support member.
Inventors
- 👤 Erik Reinhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:15
CPC Classifications
F; F26; F26B; F26B11/00; F26B11/02; F26B11/04; F27; F27B; F27B7/00; F27B7/20; F27B7/38; F27B7/40
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
128 words
A rotary kiln having a plurality of cooler tubes arranged in a planetary fashion therearound, the cooler tubes being supported by a ring-shaped member disposed and spaced radially from the kiln, the ring-shaped member being attached to the kiln by a plurality of support members for supporting said ring-shaped member, at least one of said support members having first and second flange means, said first flange means being attached to inner surface portions of the ring-shaped member, said second flange means being attached to outer surface portions of the kiln, and an intermediate web member connecting said first and second flange means, said support members being arranged so as to permit movement of the cooler tubes in directions generally parallel to the longitudinal axis of the rotary kiln.
Claim 2
Dependent Claim
128 words
A rotary kiln having a plurality of cooler tubes arranged in a planetary fashion therearound, the cooler tubes being supported by a ring-shaped member disposed and spaced radially from the kiln, the ring-shaped member being attached to the kiln by a plurality of support members for supporting said ring-shaped member, at least one of said support members having first and second flange means, said first flange means being attached to inner surface portions of the ring-shaped member, said second flange means being attached to outer surface portions of the kiln, and an intermediate web member connecting said first and second flange means, said support members being arranged so as to permit movement of the cooler tubes in directions generally parallel to the longitudinal axis of the rotary kiln.
Claim 3
Dependent Claim
29 words
The rotary kiln according to claim 1 wherein said ring support members are generally of a cross-sectional lazy-Z configuration being generally transverse to the longitudinal axis of the kiln.
Claim 4
Dependent Claim
166 words
A rotary kiln having a plurality of cooler tubes arranged in planetary fashion therearound, the cooler tubes being supported in a ring-shaped member surrounding the kiln and spaced apart therefrom, the ring-shaped member being attached to the kiln by a plurality of support members for supporting said ring-shaped member, each of said support members having first and second flange means, each said first flange means being attached to inner surface portions of the ring-shaped member, each said second flange means being attached to surface portions of the kiln, and an intermediate web member having a substantially frustoconical surface and connecting said first and second flange means of said support members, said support members being so arranged that their respective intermediate web members are in generally parallel relation such that the web members of adjacent support members, together with the surface of the kiln and the inner surface of the ring-shaped member, form a box-like section having a generally parallelogram cross-sectional configuration for supporting said ring-shaped member.
Claim 5
Dependent Claim
166 words
A rotary kiln having a plurality of cooler tubes arranged in planetary fashion therearound, the cooler tubes being supported in a ring-shaped member surrounding the kiln and spaced apart therefrom, the ring-shaped member being attached to the kiln by a plurality of support members for supporting said ring-shaped member, each of said support members having first and second flange means, each said first flange means being attached to inner surface portions of the ring-shaped member, each said second flange means being attached to surface portions of the kiln, and an intermediate web member having a substantially frustoconical surface and connecting said first and second flange means of said support members, said support members being so arranged that their respective intermediate web members are in generally parallel relation such that the web members of adjacent support members, together with the surface of the kiln and the inner surface of the ring-shaped member, form a box-like section having a generally parallelogram cross-sectional configuration for supporting said ring-shaped member.
Claim 6
Dependent Claim
44 words
The rotary kiln according to claim 3 wherein said support member comprises a first flange attached to the inner surface of the ring-shaped member, a second flange attached to the surface of the kiln, and a web member connecting said first and second flanges.
Claim 7
Dependent Claim
19 words
The rotary kiln according to claim 4 wherein said ring support members are generally of a cross-sectional lazy-Z configuration.
Claim 8
Dependent Claim
17 words
The rotary kiln according to claim 5 wherein each of said web members has a frusto-conical configuration.
Claim 9
Dependent Claim
22 words
The rotary kiln according to claim 6 wherein the axis of the frusto-conical surface is co-terminous with the axis of the kiln.
Claim 10
Dependent Claim
16 words
The rotary kiln according to claim 7 wherein said first flanges are slotted at intervals therearound.
Claim 11
Dependent Claim
25 words
The rotary kiln according to claim 8 wherein said slots extend axially of the kiln across substantially the entire axial length of said first flanges.
Claim 12
Dependent Claim
16 words
The rotary kiln according to claim 9 wherein said connecting webs are slotted as intervals therearound.
Claim 13
Dependent Claim
27 words
The rotary kiln according to claim 10 wherein said slots of said connecting webs extend axially of the kiln across substantially the entire length of said webs.
Claim 14
Dependent Claim
36 words
The rotary kiln according to claim 11 wherein said slots in each ring support member are angularly offset about the circumference of the rotary kiln in relation to said slots of an adjacent ring support member.
Claim 15
Dependent Claim
195 words
A rotary kiln having a plurality of cooler tubes arranged in planetary fashion therearound, the cooler tubes being supported in a ring-shaped member surrounding the kiln and spaced apart therefrom, the ring-shaped member being attached to the kiln by a plurality of support members for supporting said ring-shaped member, each of said support members having first and second flanges, each said first flange being attached to inner surface portions of the ring-shaped member, each said second flange being attached to surface portions of the kiln, and an intermediate web having a substantially frusto-conical surface and connecting said first and second flanges of said support member, said support members being so arranged that their respective intermediate web members are in generally parallel relation such that the web members of adjacent support members, together with the surface of the kiln and the inner surface of the ring-shaped member, form a box-like section having a generally parallelogram cross-sectional configuration for supporting said ring-shaped member, each said first flange and said intermediate web being slotted at intervals therearound, said slots extending axially of the kiln across substantially the entire axial length of said first flange and said intermediate web.
Claim 16
Dependent Claim
195 words
A rotary kiln having a plurality of cooler tubes arranged in planetary fashion therearound, the cooler tubes being supported in a ring-shaped member surrounding the kiln and spaced apart therefrom, the ring-shaped member being attached to the kiln by a plurality of support members for supporting said ring-shaped member, each of said support members having first and second flanges, each said first flange being attached to inner surface portions of the ring-shaped member, each said second flange being attached to surface portions of the kiln, and an intermediate web having a substantially frusto-conical surface and connecting said first and second flanges of said support member, said support members being so arranged that their respective intermediate web members are in generally parallel relation such that the web members of adjacent support members, together with the surface of the kiln and the inner surface of the ring-shaped member, form a box-like section having a generally parallelogram cross-sectional configuration for supporting said ring-shaped member, each said first flange and said intermediate web being slotted at intervals therearound, said slots extending axially of the kiln across substantially the entire axial length of said first flange and said intermediate web.
Claim 17
Dependent Claim
18 words
The rotary kiln according to claim 11 or 13 wherein said second flanges are slotted at intervals therearound.
Claim 18
Dependent Claim
28 words
The rotary kiln according to claim 14 wherein said slots of said second flanges extending axially of the kiln across substantially the entire axial length of said flanges.
Claim 19
Dependent Claim
42 words
The rotary kiln according to claim 15 wherein said slots of said second flanges are in alignment with said slots of said first flanges and said web members such that each support member comprises a plurality of separate substantially lazy-Z-shaped support parts.
Claim 20
Dependent Claim
36 words
The rotary kiln according to claim 16 wherein said slots in each ring support member are angularly offset about the circumference of the rotary kiln in relation to said slots of an adjacent ring support member.
References Cited (Backward Citations)
US3502139A
Cited
US3512764A
Cited
US3547418A
Cited
US3556495A
Cited
US3704873A
Cited
US3790335A
Cited
US3794462A
Cited
US3811824A
Cited
US3813211A
Cited
US3830623A
Cited
US3918893A
Cited
US4059397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |