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EP1602889B1 - Four industriel - Google Patents

Four industriel Download PDF

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Publication number
EP1602889B1
EP1602889B1 EP04013331A EP04013331A EP1602889B1 EP 1602889 B1 EP1602889 B1 EP 1602889B1 EP 04013331 A EP04013331 A EP 04013331A EP 04013331 A EP04013331 A EP 04013331A EP 1602889 B1 EP1602889 B1 EP 1602889B1
Authority
EP
European Patent Office
Prior art keywords
kiln
shaped bricks
concrete
wall
layer
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
Application number
EP04013331A
Other languages
German (de)
English (en)
Other versions
EP1602889A1 (fr
Inventor
Hannes Piringer
Andreas Loebner
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.)
Maerz Ofenbau AG
Original Assignee
Maerz Ofenbau AG
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 Maerz Ofenbau AG filed Critical Maerz Ofenbau AG
Priority to ES04013331T priority Critical patent/ES2279256T3/es
Priority to EP04013331A priority patent/EP1602889B1/fr
Priority to DE502004002454T priority patent/DE502004002454D1/de
Priority to AT04013331T priority patent/ATE349667T1/de
Priority to PL04013331T priority patent/PL1602889T3/pl
Priority to TW094116814A priority patent/TWI294956B/zh
Priority to MYPI20052515A priority patent/MY141346A/en
Priority to BRPI0501993-1A priority patent/BRPI0501993B1/pt
Priority to MXPA05005966A priority patent/MXPA05005966A/es
Priority to RU2005117077/03A priority patent/RU2301388C2/ru
Priority to CNB2005100760513A priority patent/CN100483057C/zh
Publication of EP1602889A1 publication Critical patent/EP1602889A1/fr
Application granted granted Critical
Publication of EP1602889B1 publication Critical patent/EP1602889B1/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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/12—Shells or casings; Supports therefor
    • F27B1/14—Arrangements of linings
    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/24—Cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/14—Supports for linings

Definitions

  • the invention relates to an industrial furnace with a circumferentially curved, multi-layered inner wall, wherein at least their convexly curved lining layer has toothed, refractory molded blocks.
  • the damage can reach a level after a few heating and cooling processes, which requires a speedy renewal of at least the convex outer layer of the inner wall.
  • the thermal expansions lead to a stabilizing tension of the structure.
  • the invention has for its object to avoid the disadvantages mentioned and thus to find an industrial furnace, which has an increased resistance of its refractory lining and thus improved reliability.
  • the solution of this object is achieved according to the invention in that the formed by shaped blocks convex lining layer in the circumferential direction by at least one formed of refractory concrete elements, an expansion joint having compensating area is interrupted, the refractory concrete elements are cast on the adjacent stones, so that they engage in the tooth profile and anchored by concrete anchors to an inner layer of the inner wall.
  • two or more mutually parallel furnace shafts 1 each have an annular channel 2, in which the fuel gases flow in the direction of arrows 3 to flow into a regeneratively operated second furnace shaft, not shown.
  • the inner cylindrical wall 4, which delimits the annular channel 2 inwardly is surrounded by hot gases whose temperatures during firing of lime are about 1000 ° C.
  • the hanging arrangement of the inner wall 4 shown as an exemplary embodiment has a metallic, inner carrier layer 5 with cooling channels 6 through which air flows. At its lower end, it passes into a holder 7 for a lower support ring 8 cast from refractory concrete.
  • the inner carrier layer 5 is protected on both sides by insulating layers 9, 10.
  • the outer end of the inner wall 4 is formed in each case by a wear lining of refractory shaped bricks 11, 12, which thus form an outer convex and an inner concave lining layer 13, 14.
  • Such a hanging embodiment of the inner wall 4 has rarely been used, because due to their conventional construction there was a danger that pass through a defective convex lining layer 13 hot gases to the metallic support layer 5, so that it is destroyed. Due to the present invention, however, can be realized without this danger compared to a bottom-supported construction more advantageous hanging execution.
  • the lining layer 11 is interrupted by at least one compensating region 15-18, of which in the exemplary embodiment according to the illustration in FIG Circumferentially uniformly distributed four are provided.
  • Each compensating area 15 to 18 has according to the illustrations in Fig. 4 and 5 between two an expansion joint 19 enclosing concrete elements 20,21 which are positively connected in the circumferential direction with the waisted formed adjacent form stones 11 and also by several, eg bifurcated concrete anchors 22,23 are attached to the metallic carrier layer 5. They have a flat cross-section so that they are yielding only in one direction and are rigid in the vertical direction so as to block the concrete elements 20, 21 in their vertical position.
  • waisted shaped bricks 11 hold the concrete elements 20,21 of the four compensation areas 15 to 18 thus extending between them in an arc of 90 °, convex or arcuate lining sectors 24 to 27 in the manner of a yielding Abutment on the inner, metallic support layer 5, so that delamination and local overloads of the lining are prevented.
  • the size of the flexibility of the compensation areas 15 to 18 is determined by the width of the expansion joint 19.
  • this width of the expansion joints 19 is designed so that they close at least completely on reaching the operating temperature of the furnace or beyond in the lining sectors 24 to 27 allow pressure build-up, so that when cooling the furnace first, this pressure is reduced before shrinkages and Relative movements in the structure of the molded blocks 11 are possible.
  • two expansion joints 28, 29 are provided in the circumferential direction, so that the two concrete elements 30, 31 intermesh with one another and a labyrinth-like course of the expansion joint results.
  • the concrete elements 20, 21 and 30, 31 of the compensation area 15 have the same radial width as the refractory shaped blocks 11 of the convex lining layer 13, so that their concrete anchors 22, 23 pass through extend inside adjacent insulating layer and thus can stir out in this unimpeded bending movement.
  • the concrete elements 32,33 with a part of the concrete anchors 22,23 enclosing web 34,35 zoom up to the metallic support layer 5 and thus enclose a space filled with insulating material space 34.
  • the concrete anchors 22, 23 are stiffened so that larger compressive stresses can be formed in the lining sectors 24 to 27 when the expansion joint 19 is closed than in the exemplary embodiments according to FIG. 5 and FIG. 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Claims (10)

  1. Four industriel comprenant une paroi intérieure (4) courbée sur toute la périphérie et à plusieurs couches, dans lequel au moins sa couche de garniture à courbure convexe (13) présente des briques profilées (11) endentées entre elles et réfractaires, caractérisé en ce que la couche de garniture convexe (13) formée par des briques profilées (11) est interrompue dans la direction circonférentielle par au moins une zone de compensation (15) formée d'éléments en béton réfractaires (20, 21 ; 30, 31) et présentant un joint de dilatation (19 ; 28, 29), les éléments en béton réfractaires (20, 21 ; 30, 31) étant coulés au niveau des briques profilées adjacentes (11), de manière à s'engager dans leur profil de denture et à être ancrés à une couche intérieure (5) de la paroi intérieure (4) par des ancrages pour béton (22, 23).
  2. Four selon la revendication 1, caractérisé en ce que le joint de dilatation (28, 29) s'étend en forme de labyrinthe.
  3. Four selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que le joint de dilatation (19 ; 28, 29) a, lorsque le four est froid, une largeur qui est dimensionnée de manière à être fermée à la température de service du four.
  4. Four selon la revendication 3, caractérisé en ce que le joint de dilatation (19 ; 28, 29) est dimensionné de sorte qu'il est fermé à la température de service du four et que les briques profilées (9) de la couche extérieure convexe (11) sont soumises à une contrainte de pression qui s'étend dans la direction circonférentielle de cette couche extérieure.
  5. Four selon l'une des revendications 1 à 4, caractérisé en ce qu'un matériau isolant compressible est agencé dans le joint de dilatation (19 ; 28, 29).
  6. Four selon l'une des revendications 1 à 5, caractérisé en ce qu'une couche portante intérieure (5) de la paroi intérieure (4) est constituée de métal et en ce que des ancrages pour béton (22, 23) sont enfermés dans les éléments en béton coulés (20, 21 ; 30, 31) qui entourent le joint de dilatation (19 ; 28, 29), lesquels sont fixés à la couche portante métallique (5).
  7. Four selon l'une des revendications 1 à 6, caractérisé en ce que la paroi intérieure (4) est agencée dans le four de manière suspendue, la couche portante métallique (5) étant profilée comme poutre-cloison par une bride de support inférieure (7).
  8. Four selon l'une des revendications 1 à 7, caractérisé en ce que la largeur radiale des éléments en béton (20, 21) de la au moins une zone de compensation correspond à la largeur des briques profilées (11) de la couche de garniture convexe (13).
  9. Four selon l'une des revendications 1 à 7, caractérisé en ce que les éléments en béton (32, 33) présentent une nervure (34, 35) dirigée vers l'intérieur et enfermant au moins un ancrage pour béton (22, 23), avec laquelle ils peuvent s'étendre jusque vers la couche portante métallique (5).
  10. Four selon l'une des revendications 6 à 9, caractérisé en ce que les ancrages pour béton sont exécutés de manière souple ou avec articulation, au moins sur une zone adjacente à la couche portante métallique (5) dans la direction circonférentielle de la paroi intérieure (4), tandis qu'ils sont rigides dans la direction verticale.
EP04013331A 2004-06-05 2004-06-05 Four industriel Expired - Lifetime EP1602889B1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
ES04013331T ES2279256T3 (es) 2004-06-05 2004-06-05 Horno industrial.
EP04013331A EP1602889B1 (fr) 2004-06-05 2004-06-05 Four industriel
DE502004002454T DE502004002454D1 (de) 2004-06-05 2004-06-05 Industrieofen
AT04013331T ATE349667T1 (de) 2004-06-05 2004-06-05 Industrieofen
PL04013331T PL1602889T3 (pl) 2004-06-05 2004-06-05 Piec przemysłowy
TW094116814A TWI294956B (en) 2004-06-05 2005-05-24 Industrial kiln
MYPI20052515A MY141346A (en) 2004-06-05 2005-06-02 Industrial kiln
BRPI0501993-1A BRPI0501993B1 (pt) 2004-06-05 2005-06-03 Industrial oven
MXPA05005966A MXPA05005966A (es) 2004-06-05 2005-06-03 Horno industrial.
RU2005117077/03A RU2301388C2 (ru) 2004-06-05 2005-06-03 Промышленная печь
CNB2005100760513A CN100483057C (zh) 2004-06-05 2005-06-03 工业窑

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04013331A EP1602889B1 (fr) 2004-06-05 2004-06-05 Four industriel

Publications (2)

Publication Number Publication Date
EP1602889A1 EP1602889A1 (fr) 2005-12-07
EP1602889B1 true EP1602889B1 (fr) 2006-12-27

Family

ID=34925268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04013331A Expired - Lifetime EP1602889B1 (fr) 2004-06-05 2004-06-05 Four industriel

Country Status (11)

Country Link
EP (1) EP1602889B1 (fr)
CN (1) CN100483057C (fr)
AT (1) ATE349667T1 (fr)
BR (1) BRPI0501993B1 (fr)
DE (1) DE502004002454D1 (fr)
ES (1) ES2279256T3 (fr)
MX (1) MXPA05005966A (fr)
MY (1) MY141346A (fr)
PL (1) PL1602889T3 (fr)
RU (1) RU2301388C2 (fr)
TW (1) TWI294956B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2175219A1 (fr) 2008-10-09 2010-04-14 Maerz Ofenbau AG Elément d'habillage ignifuge

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2199717T3 (pl) * 2008-12-09 2013-09-30 Cimprogetti Spa Ogniotrwały pierścień dla pieca wapienniczego
EP2199718B1 (fr) 2008-12-09 2015-01-28 Cimprogetti S.p.A. Four à chaux
CN102012021B (zh) * 2010-11-24 2013-06-19 四川电力建设三公司 循环流化床锅炉炉墙耐火混凝土浇筑结构及浇筑方法
CN102980391B (zh) * 2012-12-19 2014-12-17 中冶长天国际工程有限责任公司 一种烧嘴前端耐热层的施工方法
CN103307883B (zh) * 2013-06-25 2014-11-05 淄博中科达耐火材料有限公司 干法水泥窑三次风管用耐火预制件及其制作方法
RU2638268C2 (ru) * 2015-11-27 2017-12-12 Общество С Ограниченной Ответственностью Внедренческое Производственное Предприятие "Известа" Шахтная печь для обжига карбонатных пород
RU178166U1 (ru) * 2017-04-21 2018-03-26 Общество С Ограниченной Ответственностью "Известа" Прямоточно-противоточная регенеративная печь для обжига карбонатных пород
CN108375305B (zh) * 2018-05-25 2024-01-23 河南龙成煤高效技术应用有限公司 一种炉窑内胆热胀冷缩补偿结构及炉窑

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1672607A (en) * 1925-10-19 1928-06-05 Albert C Fischer Expansion-joint section
DE1212710B (de) * 1958-06-07 1966-03-17 Didier Werke Ag Um seine Laengsachse gekruemmter Schornstein oder Wasch- oder Reaktionsturm
AT314408B (de) * 1972-04-24 1974-04-10 Maerz Ofenbau Schachtofen
DE3239832A1 (de) * 1982-10-27 1984-05-03 Rheinhold & Mahla Gmbh, 6800 Mannheim Feuerbestaendige verbindung von zwei benachbart zueinander angeordneten wandelementen und verfahren zur herstellung der verbindung
US5163831A (en) * 1989-09-20 1992-11-17 Frazier-Simplex, Inc. Refractory tile for a suspended furnace wall
SU1719837A1 (ru) * 1990-03-20 1992-03-15 Государственный Союзный Институт По Проектированию Агрегатов Сталеплавильного И Прокатного Производства Для Черной Металлургии "Стальпроект" Регенеративна шахтна обжигова печь
CN2141545Y (zh) * 1992-09-28 1993-09-01 路昕光 一种工业窑炉炉衬
CN2267445Y (zh) * 1996-04-16 1997-11-12 王继辰 电熔镁砂电炉
CN2363161Y (zh) * 1998-12-30 2000-02-09 宝山钢铁(集团)公司 一种非金属膨胀节
CN2381978Y (zh) * 1999-07-06 2000-06-07 刘大成 轻型熔铝炉拱形炉盖复合结构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2175219A1 (fr) 2008-10-09 2010-04-14 Maerz Ofenbau AG Elément d'habillage ignifuge
DE102008051059A1 (de) 2008-10-09 2010-05-12 Maerz Ofenbau Ag Feuerfestes Auskleidungselement

Also Published As

Publication number Publication date
CN100483057C (zh) 2009-04-29
BRPI0501993B1 (pt) 2017-12-12
TW200540384A (en) 2005-12-16
PL1602889T3 (pl) 2007-03-30
TWI294956B (en) 2008-03-21
ES2279256T3 (es) 2007-08-16
EP1602889A1 (fr) 2005-12-07
BRPI0501993A (pt) 2006-01-24
MY141346A (en) 2010-04-16
RU2301388C2 (ru) 2007-06-20
CN1707210A (zh) 2005-12-14
ATE349667T1 (de) 2007-01-15
RU2005117077A (ru) 2006-12-10
MXPA05005966A (es) 2006-04-28
DE502004002454D1 (de) 2007-02-08

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