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EP1079191A1 - Four rotatif - Google Patents

Four rotatif Download PDF

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Publication number
EP1079191A1
EP1079191A1 EP00890233A EP00890233A EP1079191A1 EP 1079191 A1 EP1079191 A1 EP 1079191A1 EP 00890233 A EP00890233 A EP 00890233A EP 00890233 A EP00890233 A EP 00890233A EP 1079191 A1 EP1079191 A1 EP 1079191A1
Authority
EP
European Patent Office
Prior art keywords
drum
furnace
profile
profiles
heating chamber
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.)
Granted
Application number
EP00890233A
Other languages
German (de)
English (en)
Other versions
EP1079191B1 (fr
Inventor
Franz Ragailler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT00890233T priority Critical patent/ATE284525T1/de
Publication of EP1079191A1 publication Critical patent/EP1079191A1/fr
Application granted granted Critical
Publication of EP1079191B1 publication Critical patent/EP1079191B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 lying in a furnace frame lying furnace drum, the one and end plates on the discharge side through central entry and discharge openings completed and via a heating medium which can be acted upon and surrounds the drum jacket Heating chamber is heated from the outside.
  • Rotary kiln to carry out various combustion and gasification processes are available in a variety of designs, with the oven drum being the one up to now forms a smooth-walled cylinder jacket with ribs on the inside and webs for shifting and longitudinal conveying of those entered in the furnace and in the furnace the desired combustion or gasification process exposed materials.
  • This as a funding and control facility serving ribs and webs simultaneously increase the heat transfer areas the oven drum heated from the outside, but the heat input remains because of the indirect heat imposed on the drum jacket Bridges and ribs unsatisfactory.
  • the invention is therefore based on the object, a rotary kiln to create the type described above, which is characterized on the one hand by its stable Construction and on the other hand due to its high thermal energy input with a comparatively low-cost design.
  • the invention solves this problem in that the furnace drum arranged between the end plates, lined up along the circumference of the drum U-profiles exist that are radial with their open profile side aligned inwards and alongside each other in the touching End regions of the profile legs and circumferentially axially from each other spaced, bridging the remaining longitudinal gaps between the profile webs Stiffening parts are connected.
  • This cylindrical row of U-profiles creates one another a furnace drum with a kind of internal teeth through the U-profiles, the mutually contacting leg ends of the U-profiles welded together are and the U-profiles in the web area by means of the stiffening parts provided support each other.
  • There is a very stable U-profile composite because the adjacent U-profile legs with the associated stiffening parts bring with them high-strength triangular cross-sections, that of the furnace drum provide the required stability.
  • This high stability allows use of U-profiles relatively small wall thickness, so that both the dead weight remains low as well as the heat transfer properties through the Drum jacket can be improved.
  • a longitudinal conveying effect can achieve, preferably inclined in the U-profiles to the drum axis baffles axially offset from profile to profile
  • Longitudinal conveyance of the registered furnace content can be arranged so that the material entered the furnace drum evenly from the entry to the discharge side hikes there and the desired one during its promotional path Heat treatment is suspended.
  • the furnace drum Since the furnace drum is usually at the ends in the area of the end plates Stored oven frame, the drum ends protrude on both sides of the heating chamber before, what in this drum end area has been compared to one
  • the heating chamber area leads to the cooler end zone of the rotary kiln, which Entry or discharge-side transition area for disruptions in the ongoing Combustion or gasification processes can lead.
  • a rotary kiln 1 has one that can be rotated and driven in an oven frame 2 stored furnace drum 3 on the entry and discharge side with end plates 4, 5 is completed.
  • the end plates 4, 5 form central entry and exit openings 6, 7 for the attachment of an entry device 8 or a discharge device 9, the entry and discharge devices 8, 9 via peripheral seals 10, 11 are sealed against the rotating furnace drum 3, which Circumferential seals 10, 11 comprise a barrier fluid system 12.
  • the Oven drum 3 is provided on the end plates 4, 5 with outer races 13, for supporting and rotating the drum with the corresponding bearing blocks 14 of the furnace frame 2 cooperate.
  • a heating chamber 15 is provided for heating the rotary kiln surrounds the drum jacket and via suitable feed and discharge lines 16, 17 from is flowed through a heating medium and thus the furnace drum 3 from the outside heat treated.
  • the furnace drum 3 consists of arranged between the end plates 4, 5, U-profiles 18 lined up along the circumference of the drum, which are oriented radially inwards with their open profile sides.
  • the U profiles 18 are along the long sides along the touching end regions 19 the profile leg 20 welded and are circumferentially through each other axially spaced, the remaining longitudinal gaps 21 between the profile webs 22 bridging stiffening parts 23 in connection, which stiffening parts 23 individual web sheets can be, but preferably as the U-profiles 18 spanning rings 24 are formed.
  • the furnace drum 3 protrudes from the heating chamber 15 on both sides and becomes stored outside of the heating chamber 15 via its races 13 on the furnace frame 2.
  • no cooling zone has to be accepted is between the an end 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 protruding ends of the U-profiles 18 surrounding end sleeve 28 used, which cuffs 28 on the one hand for thermal insulation of the drum end area and on the other hand a heating medium the drum up to the end plates 4, 5 permitting double jacket 29 bring 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)
EP00890233A 1999-08-25 2000-07-28 Four rotatif Expired - Lifetime EP1079191B1 (fr)

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
AT145799 1999-08-25
AT0145799A AT407671B (de) 1999-08-25 1999-08-25 Drehofen

Publications (2)

Publication Number Publication Date
EP1079191A1 true EP1079191A1 (fr) 2001-02-28
EP1079191B1 EP1079191B1 (fr) 2004-12-08

Family

ID=3514338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00890233A Expired - Lifetime EP1079191B1 (fr) 1999-08-25 2000-07-28 Four rotatif

Country Status (6)

Country Link
US (1) US6244859B1 (fr)
EP (1) EP1079191B1 (fr)
AT (2) AT407671B (fr)
DE (1) DE50008891D1 (fr)
PL (1) PL192415B1 (fr)
WO (1) WO2001014810A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1445566A1 (fr) * 2003-02-08 2004-08-11 VTA Verfahrenstechnik und Automatisierungs GmbH Anneau d'étanchéité pour four rotatif à chauffage indirect
WO2008147188A1 (fr) * 2007-05-31 2008-12-04 Pyrotek Inc. Dispositif et procédé pour obtenir des métaux non ferreux
WO2009003674A3 (fr) * 2007-07-04 2009-04-02 Buettner Ges Fuer Trocknungs U Tambour tournant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (5)

* Cited by examiner, † Cited by third party
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
LU62436A1 (fr) * 1970-01-27 1971-09-06
DE2031628A1 (de) * 1970-06-26 1972-01-05 Gebr. Claas, 4834 Harsewinkel Trommeltrockner
US4639216A (en) * 1985-04-25 1987-01-27 Schnupp's Grain Roasting, Inc. Grain roasting machine and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2669444A (en) * 1951-01-30 1954-02-16 Ind And Financial Ass Inc Externally heated, revolving furnace
AT384100B (de) * 1981-01-27 1987-09-25 Voest Alpine Ag Drehrohrofen
US5033959A (en) * 1990-10-15 1991-07-23 J. O. Bernt & Associates Limited Kiln liner

Patent Citations (5)

* Cited by examiner, † Cited by third party
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
LU62436A1 (fr) * 1970-01-27 1971-09-06
DE2031628A1 (de) * 1970-06-26 1972-01-05 Gebr. Claas, 4834 Harsewinkel Trommeltrockner
US4639216A (en) * 1985-04-25 1987-01-27 Schnupp's Grain Roasting, Inc. Grain roasting machine and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1445566A1 (fr) * 2003-02-08 2004-08-11 VTA Verfahrenstechnik und Automatisierungs GmbH Anneau d'étanchéité pour four rotatif à chauffage indirect
WO2008147188A1 (fr) * 2007-05-31 2008-12-04 Pyrotek Inc. Dispositif et procédé pour obtenir des métaux non ferreux
EP2000761A1 (fr) * 2007-05-31 2008-12-10 Pyrotek, Inc. Dispositif et procédé pour l'obtention de métaux non ferreux
US8480950B2 (en) 2007-05-31 2013-07-09 Pyrotek, Inc. Device and method for obtaining non-ferrous metals
WO2009003674A3 (fr) * 2007-07-04 2009-04-02 Buettner Ges Fuer Trocknungs U Tambour tournant

Also Published As

Publication number Publication date
PL342160A1 (en) 2001-02-26
WO2001014810A1 (fr) 2001-03-01
ATA145799A (de) 2000-09-15
EP1079191B1 (fr) 2004-12-08
US6244859B1 (en) 2001-06-12
PL192415B1 (pl) 2006-10-31
AT407671B (de) 2001-05-25
DE50008891D1 (de) 2005-01-13
ATE284525T1 (de) 2004-12-15

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