EP1079191B1 - Drehofen - Google Patents
Drehofen Download PDFInfo
- Publication number
- EP1079191B1 EP1079191B1 EP00890233A EP00890233A EP1079191B1 EP 1079191 B1 EP1079191 B1 EP 1079191B1 EP 00890233 A EP00890233 A EP 00890233A EP 00890233 A EP00890233 A EP 00890233A EP 1079191 B1 EP1079191 B1 EP 1079191B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- furnace
- profiles
- heating chamber
- profile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000002309 gasification Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/08—Rotary-drum furnaces, i.e. horizontal or slightly inclined externally heated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/14—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
- F27B7/16—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means
- F27B7/161—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising projections jutting out from the wall
Definitions
- the invention relates to a rotary kiln with a rotatable and drivable in a furnace rack mounted lying kiln drum, the on and discharge side by central inlet and outlet openings forming end plates completed and about the drum shell surrounding utzmediumbeaufschlagbare Heating chamber is heated from the outside.
- Rotary kilns for carrying out various combustion and gasification processes
- a smooth-walled cylinder jacket forms on the inside with ribs and webs for redistribution and longitudinal promotion of registered in the furnace and in the oven the desired combustion or gasification process equipped materials.
- conveying and guiding device serving ribs and webs simultaneously increase the heat transfer surfaces the externally heated kiln drum, but remains while the heat input because of the only indirectly heat-stressed over the drum shell Webs and ribs unsatisfactory.
- the invention is therefore based on the object, a rotary kiln of At the beginning of the article, the one on the one hand, through its stable Construction and on the other hand by its high heat energy input performance characterized in comparatively low-cost construction.
- the invention solves this problem in that the furnace drum arranged between the end plates, juxtaposed along the drum circumference U-profiles consists, with their open profile side radial inwardly aligned and with each other longitudinally in the touching End portions of the profile legs and peripherally by each other axially spaced, bridging the remaining longitudinal gaps between the profile webs Stiffening parts are connected.
- the special drum cross-section with its internal teeth achieved particularly favorable heat input conditions, as the remaining between the adjacent U-profile legs, in cross section triangular spaces accessible from the outside and in the heating chamber are acted upon by the heating medium, so that not only in accordance enlarged heat transfer surfaces are available, but also by the inwardly projecting profile legs heat input directly into the of the profile legs taken in the interior of the drum and rearranged Material takes place. It comes to the most favorable results of the incineration and gasification process, because at drum rotation take the Inwardly projecting profile legs on the material, layer it and give It continues from profile to profile, resulting in intense contact between profile parts and the material to be treated and a correspondingly high heat input brings with it.
- connection plates between the Profile webs be welded, but are expediently as stiffening parts provided the U-profile spanning rings that grow up efficiently let and possibly also od as bearing rings for drum storage. Like. Can be used.
- a horizontal drum position next to the redeployment of the material within the furnace also has a longitudinal conveying effect reach, can be inclined in the U-profiles to the drum axis, preferably from profile to profile against each other axially offset baffles for Longitudinal promotion of the registered Ofeninhaltes be arranged so that the Registered material, the furnace drum evenly from the entry to the discharge side wandered through and during its route of the desired Heat treatment is suspended.
- a rotary kiln 1 has a rotatable and drivable in a furnace frame 2 mounted lying kiln drum 3, on the input and output side with end plates 4, 5 is completed.
- the end plates 4, 5 form central inlet and outlet openings 6, 7 for the approach of an entry device 8 and a discharge device 9, wherein the entry and discharge devices 8, 9 via circumferential seals 10, 11 are sealed from the rotating kiln drum 3, which Circumferential seals 10, 11 include a barrier fluid system 12.
- the Furnace drum 3 is provided on the end plates 4, 5 with outer races 13, for supporting and pivoting the drum with corresponding bearing blocks 14 of the furnace frame 2 cooperate.
- a heating chamber 15 For heating the rotary kiln, a heating chamber 15 is provided which surrounding the drum shell and via suitable supply and discharge lines 16, 17 of a heating medium is flowed through and thus the furnace drum 3 from the outside blazebeaufschlagt.
- the prerequisites for a particularly effective heat input via the kiln drum into the material to be treated inside the kiln to offer the furnace drum 3 is arranged between the end plates 4, 5, along the circumference of the drum juxtaposed U-profiles 18, which are aligned radially inwardly with their open profile sides.
- the U-profiles 18 are longitudinally along the contacting end portions 19 the profile leg 20 welded and are circumferentially by each other axially spaced, the remaining longitudinal gaps 21 between the profile webs 22 bridging stiffening members 23 together, which stiffening parts 23 may be single web plates, but preferably as the U-profiles 18 spanning rings 24 are formed.
- the one to be treated in the oven Material from the entry device 8 to the discharge device 9 to be able to promote further, only need in the U-profiles 18 to the drum axis A inclined, preferably from profile to profile against each other axially staggered baffles 25 for longitudinal promotion of the registered Ofeninhaltes to be arranged.
- the furnace drum 3 protrudes from both sides of the heating chamber 15 and is stored outside the heating chamber 15 via their races 13 on the furnace frame 2.
- the furnace drum 3 protrudes from both sides of the heating chamber 15 and is stored outside the heating chamber 15 via their races 13 on the furnace frame 2.
- the intermediate region between the heating chamber 15 and the end plates 4, 5 does not have to accept a cooling zone, is in each case between the a front plate 4, 5 of the furnace drum 3 and the adjacent end wall 26, 27 of the heating chamber 15 a coaxial to the furnace drum 3, which from the heating chamber 15 projecting ends of the U-profiles 18 surrounding end sleeve 28 used, which cuffs 28 on the one hand for thermal insulation the Trommelend Schemees provide and on the other hand a Schumediumbeaufschlagung the drum up to the end plates 4, 5 permitting double jacket 29 with it.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Centrifugal Separators (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Drying Of Solid Materials (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
Claims (4)
- Drehofen mit einer dreh- und antreibbar in einem Ofengestell (2) gelagerten liegenden Ofentrommel (3) die ein- und austragseitig durch mittige Ein- bzw. Austragsöffnungen bildende Stirnplatten (4, 5) abgeschlossen und über eine den Trommelmantel umgebende heizmediumbeaufschlagbare Heizkammer (15) von außen beheizbar ist, dadurch gekennzeichnet, daß die Ofentrommel (3) aus zwischen den Stirnplatten (4, 5) angeordneten, entlang des Trommelumfanges nebeneinandergereihten U-Profilen (18) besteht, die mit ihrer offenen Profilseite radial einwärts ausgerichtet und untereinander längsseitig in den sich berührenden Endbereichen (19) der Profilschenkel (20) und umfangseitig durch voneinander axial beabstandeten, die verbleibenden Längsspalte (21) zwischen den Profilstegen (22) überbrückende Versteifungsteile (23) verbunden sind.
- Drehofen nach Anspruch 1, dadurch gekennzeichnet, daß als Versteifungsteile (23) die U-Profile (18) umspannende Ringe (24) vorgesehen sind.
- Drehofen nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in den U-Profilen (18) zur Trommelachse (A) schräggestellte, vorzugsweise von Profil (18) zu Profil (18) gegeneinander axial versetzte Leitwände (25) zur Längsförderung des eingetragenen Ofeninhaltes angeordnet sind.
- Drehofen nach einem der Ansprüche 1 bis 3, mit beiderseits aus der Heizkammer (15) vorragender Ofentrommel (3), dadurch gekennzeichnet, daß jeweils zwischen der Stirnplatte (4, 5) der Ofentrommel (3) und der benachbarten Abschlußwand (26, 27) der Heizkammer (15) eine zur Ofentrommel (3) koaxiale, die aus der Heizkammer (15) vorstehenden Enden der U-Profile (18) umgebende Abschlußmanschette (28) eingesetzt ist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT00890233T ATE284525T1 (de) | 1999-08-25 | 2000-07-28 | Drehofen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0145799A AT407671B (de) | 1999-08-25 | 1999-08-25 | Drehofen |
| AT145799 | 1999-08-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1079191A1 EP1079191A1 (de) | 2001-02-28 |
| EP1079191B1 true EP1079191B1 (de) | 2004-12-08 |
Family
ID=3514338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00890233A Expired - Lifetime EP1079191B1 (de) | 1999-08-25 | 2000-07-28 | Drehofen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6244859B1 (de) |
| EP (1) | EP1079191B1 (de) |
| AT (2) | AT407671B (de) |
| DE (1) | DE50008891D1 (de) |
| PL (1) | PL192415B1 (de) |
| WO (1) | WO2001014810A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20302000U1 (de) * | 2003-02-08 | 2004-07-08 | Vta Verfahrenstechnik Und Automatisierung Gmbh | Ring-Dichtungsanordnung für einen indirekt beheizten Drehrohrofen |
| EP2000761B1 (de) * | 2007-05-31 | 2015-10-07 | Pyrotek, Inc. | Vorrichtung und Verfahren zum Gewinnen von Nichteisenmetallen |
| DE102007031081B4 (de) * | 2007-07-04 | 2015-08-06 | Büttner Energie- und Trocknungstechnik GmbH | Drehtrommel |
| US8109009B1 (en) | 2008-07-03 | 2012-02-07 | Collette Jerry R | Air seal for rotary dryer/kiln |
| JP5695348B2 (ja) * | 2009-09-14 | 2015-04-01 | 高砂工業株式会社 | ロータリーキルン |
| JP5908417B2 (ja) * | 2013-01-25 | 2016-04-26 | 三井造船株式会社 | 横型回転乾燥機 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1539649A (en) * | 1923-07-03 | 1925-05-26 | Duff Patents Company Inc | Drier |
| GB484358A (en) * | 1936-06-10 | 1938-05-04 | Metallgesellschaft Ag | Improvements in or relating to rotary muffle furnaces |
| US2669444A (en) * | 1951-01-30 | 1954-02-16 | Ind And Financial Ass Inc | Externally heated, revolving furnace |
| US3709474A (en) * | 1970-01-27 | 1973-01-09 | Dansk Leca As | Rotary kiln for the production of a granular, bloated product |
| DE2031628C3 (de) * | 1970-06-26 | 1974-02-14 | Gebr. Claas Maschinenfabrik Gmbh, 4834 Harsewinkel | Trommeltrockner |
| AT384100B (de) * | 1981-01-27 | 1987-09-25 | Voest Alpine Ag | Drehrohrofen |
| US4639216A (en) * | 1985-04-25 | 1987-01-27 | Schnupp's Grain Roasting, Inc. | Grain roasting machine and method |
| US5033959A (en) * | 1990-10-15 | 1991-07-23 | J. O. Bernt & Associates Limited | Kiln liner |
-
1999
- 1999-08-25 AT AT0145799A patent/AT407671B/de not_active IP Right Cessation
-
2000
- 2000-07-28 AT AT00890233T patent/ATE284525T1/de not_active IP Right Cessation
- 2000-07-28 EP EP00890233A patent/EP1079191B1/de not_active Expired - Lifetime
- 2000-07-28 DE DE2000508891 patent/DE50008891D1/de not_active Expired - Fee Related
- 2000-08-04 US US09/632,416 patent/US6244859B1/en not_active Expired - Fee Related
- 2000-08-24 PL PL342160A patent/PL192415B1/pl unknown
- 2000-08-25 WO PCT/AT2000/000229 patent/WO2001014810A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001014810A1 (de) | 2001-03-01 |
| PL192415B1 (pl) | 2006-10-31 |
| ATA145799A (de) | 2000-09-15 |
| US6244859B1 (en) | 2001-06-12 |
| AT407671B (de) | 2001-05-25 |
| EP1079191A1 (de) | 2001-02-28 |
| PL342160A1 (en) | 2001-02-26 |
| ATE284525T1 (de) | 2004-12-15 |
| DE50008891D1 (de) | 2005-01-13 |
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