EP2752260B1 - Sol en céramique ignifuge - Google Patents

Sol en céramique ignifuge Download PDF

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Publication number
EP2752260B1
EP2752260B1 EP13150422.7A EP13150422A EP2752260B1 EP 2752260 B1 EP2752260 B1 EP 2752260B1 EP 13150422 A EP13150422 A EP 13150422A EP 2752260 B1 EP2752260 B1 EP 2752260B1
Authority
EP
European Patent Office
Prior art keywords
lining
permanent
base according
solid bricks
wear
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.)
Not-in-force
Application number
EP13150422.7A
Other languages
German (de)
English (en)
Other versions
EP2752260B9 (fr
EP2752260A1 (fr
Inventor
Alexander Maranitsch
Matthias Hoeck
Marcus Kirschen
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.)
Refractory Intellectual Property GmbH and Co KG
Original Assignee
Refractory Intellectual Property GmbH and Co KG
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 Refractory Intellectual Property GmbH and Co KG filed Critical Refractory Intellectual Property GmbH and Co KG
Priority to HUE13150422A priority Critical patent/HUE032636T2/en
Priority to SI201330555A priority patent/SI2752260T1/sl
Priority to PL13150422T priority patent/PL2752260T3/pl
Priority to ES13150422.7T priority patent/ES2619977T3/es
Priority to EP13150422.7A priority patent/EP2752260B9/fr
Priority to UAA201505093A priority patent/UA113564C2/uk
Priority to EA201500476A priority patent/EA028140B1/ru
Priority to PE2015000638A priority patent/PE20151115A1/es
Priority to BR112015010340-5A priority patent/BR112015010340B1/pt
Priority to PCT/EP2013/075299 priority patent/WO2014106553A1/fr
Priority to JP2015548328A priority patent/JP2016507715A/ja
Priority to CN201380062902.1A priority patent/CN104903027B/zh
Priority to KR1020157011924A priority patent/KR20150081284A/ko
Priority to CA2888450A priority patent/CA2888450C/fr
Priority to US14/648,140 priority patent/US9962764B2/en
Priority to MX2015005327A priority patent/MX361111B/es
Priority to TW102148403A priority patent/TWI552817B/zh
Priority to ARP130105052A priority patent/AR094297A1/es
Publication of EP2752260A1 publication Critical patent/EP2752260A1/fr
Priority to IL238355A priority patent/IL238355B/en
Priority to CL2015001208A priority patent/CL2015001208A1/es
Priority to ZA2015/03865A priority patent/ZA201503865B/en
Priority to SA515360534A priority patent/SA515360534B1/ar
Application granted granted Critical
Publication of EP2752260B1 publication Critical patent/EP2752260B1/fr
Publication of EP2752260B9 publication Critical patent/EP2752260B9/fr
Priority to US15/871,743 priority patent/US20180133792A1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02—Linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/08—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring
    • 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
    • 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
    • F27D1/0043—Floors, hearths

Definitions

  • the invention relates to a refractory ceramic floor in the connection region to at least one wall of a vessel for the treatment of a high-temperature melt,
  • the vessel may be, for example, a metallurgical ladle.
  • the state of the art and the invention are described in more detail below with reference to this use.
  • Such a pan is for example in the US 5,879,616 A or in "Revue de Metallurgie, Vol. 88, No. 718, 1.7.91, S-781-788". To simplify matters, it consists of a floor and a wall extending from the floor upwards, with a mostly round inner cross-section, so that overall a kind of pot shape results. At least one hole (spout area) is arranged in the floor.
  • a treated in the pan molten metal passes through the spout (tapping) in a downstream system, such as a tundish.
  • a stopper closure English: stopper
  • a slide valve English: sliding plate valve
  • the slag Since the slag is lighter than the molten metal (molten steel), the slag floats predominantly on the metal bath. It has therefore sloped the surface of the pan floor designed to transport as much liquid metal through the spout, which is located at the lowest point of the soil before the slag flows through it.
  • the invention has for its object to provide a construction in which as much melt can be removed in good quality from a melting vessel.
  • the invention goes the way according to "Revue de Metallurgie”:
  • the soil is formed from a refractory permanent lining on which a wear lining is arranged, but in a different design.
  • the permanent lining or more precisely: the surface of the permanent lining, specifies the desired geometry for the wear lining.
  • the permanent feed accordingly has at least one inclined surface and a three-dimensional shape and at least one step.
  • the permanent food must not be renewed for a long time, because it is not subject to wear. Only the wear lining located on the permanent lining is consumed and must be repaired or renewed from time to time.
  • the wear lining is laid on the permanent lining in the form of refractory bricks, it follows immediately that the upper side of the wear lining has the same or essentially the same shape (geometry) as the upper part of the permanent lining. This is especially true when the stones of the wear lining are mainly identical and are mainly laid in the same direction.
  • the invention relates to a refractory ceramic floor in the connection region to at least one wall of a vessel for the treatment of a high-temperature melt, with the features of the main entitlement.
  • solid brick covers all types of classic refractory ceramic bricks, regardless of their geometry or composition. Solid bricks are in particular compact refractory bricks in the form of a cuboid, a column or a three-dimensional polygon with a largely homogeneous internal structure.
  • the open and / or closed porosity should be as low as possible, for example ⁇ 20% by volume, better ⁇ 15% by volume, ⁇ 10% by volume or ⁇ 5% by volume.
  • those stones are excluded which have a passage opening or individual larger cavities and / or stones for special metallurgical applications such as gas purging bricks and other functional components.
  • a nozzle or a gas purging plug can be installed as a discrete, independent component in both the permanent and the wear chuck.
  • Discrete independent component refers to a use regardless of the wear lining.
  • At least 60M .-% of the wear lining consist of such solid bricks.
  • the value may also be> 65M .-%,> 70M .-%,> 75M .-%, ⁇ 80M .-%,> 85M .-%,> 90M .-%,> 93M .-% or> 95M% ,
  • the percentage of solid bricks depends on the shape, dimensions and size of each pan. It should be as high as possible in order to best reproduce the surface structure of the permanent feed.
  • the remainder may for example be formed of a refractory mass, which is used in the transition region between adjacent stones, between stones and wall or other components / internals, in the spout area, etc., to fill gussets.
  • a refractory mass which is used in the transition region between adjacent stones, between stones and wall or other components / internals, in the spout area, etc., to fill gussets.
  • the permanent feed consists of at least one monolithic refractory mass.
  • the entire permanent feed can be produced in-situ or at any location, even outside the plant in which the melting pot is used. It is advantageous to carry out the permanent feed as prefabricated component.
  • the prefabricated component may be one or more parts (for example 2 to 10 parts) and consist for example of segments which complement each other to form a complete permanent feed.
  • the permanent lining of the soil is then installed in the pan and then laid the wear lining on the permanent feed.
  • the three-dimensional shape of the permanent lining is important because it dictates what the surface texture of the wear lining is.
  • the surface structure of the wear lining is important because this surface has contact with the melt and to be able to derive as much melt in good quality through the spout.
  • the wear lining takes over these forms directly, as explained above.
  • the surface of the permanent lining and thus the corresponding surface of the wear lining can be fully or partially inclined.
  • the maximum slope is usually 45 ° to the horizontal, with upper possible limits at 30 °, 25 °, 20 °, 15 ° or 10 ° and possible lower limits at 1.5 °, 2 °, 3 °, 4 °, 5 ° or 8 °.
  • the surface of the permanent lining which is adjacent to the wear lining, is inclined at least in sections relative to the horizontal by 2 ° to 25 °. Sections near the spout opening (tapping) may have a greater incline than sections in the wall region of the metallurgical vessel.
  • the invention makes it possible to use the solid bricks of the wear lining at least partially as prefabricated segments of a plurality of solid bricks. This can simplify repair work.
  • the geometry of the stones is not critical. But it is particularly easy to produce floors whose wear lining consists of at least 70M .-% or at least 75M .-% of solid bricks, which have a triangular, rectangular or polygonal profile in a plan view.
  • According to another variant consists of at least 80M .-% bricks from solid bricks, which have their greatest longitudinal extent in the vertical direction.
  • the bricks of the wear layer can be made of any refractory material, for example of at least one material of the following group: magnesia (MgO), alumina (Al 2 O 3), magnesia-carbon (MgO-C), doloma (MgO-CaO).
  • magnesia MgO
  • Al 2 O 3 magnesia-carbon
  • MgO-C magnesia-carbon
  • MgO-CaO doloma
  • TiO 2 TiO 2 .
  • gussets can be filled with a refractory ceramic mass.
  • the application can be done manually or automatically, for example by pounding, spraying, pouring or grouting.
  • a variant of the invention provides the following: solid tiles, which lie on a surface of the permanent lining, which is inclined relative to the horizontal by at least 1.5 °, are arranged, for example staggered, such shown in the figure description (if no flat edition is possible).
  • FIG. 1 shows a bottom with two layers, namely a lower layer 10 and an upper layer 20 arranged thereon. Both are approximately circular in plan view.
  • the upper layer 20, ie the wear layer, consists predominantly (to> 80M .-%) of cuboid refractory bricks 21 of the same size in a similar installation, except in the region of the spout 30th
  • Fig. 5 shows an embodiment in which the planar inclined surfaces of the Figures 3 . 4 replaced by a staircase-like contour, however, the total - technically speaking - a slope similar to in FIG. 3 results.
  • the term "inclined surface” technically also includes embodiments with corresponding, successive small steps 13 (FIG. Fig. 5 ).
  • gussets Z also exist between bricks 21 and an adjacent curved vessel wall 52 of a steel pouring ladle 50. These areas are also filled with a monolithic refractory mass.
  • the 3-dimensional design is automatically determined by the unchanged permanent lining 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Building Environments (AREA)
  • Cookers (AREA)
  • Packages (AREA)

Claims (13)

  1. Fond céramique réfractaire dans une zone de raccord à au moins une paroi (52) d'un récipient (50) pour le traitement d'une masse en fusion à haute température avec les caractéristiques suivantes :
    a) le fond comprend au moins deux couches (10, 20), notamment
    b) une couche inférieure d'un revêtement de sécurité céramique réfractaire (10) avec au moins un gradin (13) et
    c) une couche supérieure d'un revêtement d'usure céramique réfractaire (20),
    d) le revêtement de sécurité (10) possédant une surface adjacente (10o) au revêtement d'usure (20), qui est inclinée de plus de 1° au moins par section par rapport à l'horizontale,
    e) cette surface (10o) comportant une structure tridimensionnelle, et
    f) le revêtement d'usure (20) étant composé d'au moins 60M % de briques pleines céramiques réfractaires (21),
    g) le revêtement de sécurité (10) et le revêtement d'usure (20) comportant respectivement au moins une interruption pour former au moins une ouverture de sortie commune (30) pour la masse en fusion à haute température.
  2. Fond selon la revendication 1, dont le revêtement de sécurité (10) est formé au moins d'une masse réfractaire monolithique.
  3. Fond selon la revendication 1, dont le revêtement de sécurité (10) est un élément préfabriqué qui a été fabriqué à partir d'au moins une masse réfractaire monolithique.
  4. Fond selon la revendication 1, pour lequel la surface (10o) du revêtement de sécurité (10), voisin du revêtement d'usure (20), est inclinée au moins par section de 2° à 25° par rapport à l'horizontale.
  5. Fond selon la revendication 1, avec au moins un élément séparé (14, 30), qui est incorporé dans le revêtement de sécurité (10) et dans le revêtement d'usure (20).
  6. Fond selon la revendication 1, pour lequel au moins 75% des briques pleines (21) du revêtement d'usure (20) sont posés en une seule couche.
  7. Fond selon la revendication 1, pour lequel au moins 60% des briques pleines (21) du revêtement d'usure (20) sont de structure identique.
  8. Fond selon la revendication 1, pour lequel les briques pleines (21) du revêtement d'usure (20) sont constituées au moins en partie en tant que segments préconfectionnés respectivement à partir de plusieurs briques pleines.
  9. Fond selon la revendication 1, dont le revêtement d'usure (20) est composé au moins de 70M% de briques pleines (21), qui présentent dans une vue en plan un profil triangulaire, rectangulaire ou polygonal.
  10. Fond selon la revendication 1, dont le revêtement d'usure (20) est composé au moins à 80M% de briques pleines (21), qui ont leur extension longitudinale maximale dans le sens vertical.
  11. Fond selon la revendication 1, pour lequel les briques pleines (21) du revêtement d'usure (20) sont composées au moins d'un matériau du groupe suivant : magnésia, alumina, magnésia-carbone, doloma, magnésia-chromite.
  12. Fond selon la revendication 1 ou 5, pour lequel les interstices (23)
    - entre les briques pleines (21),
    - entre les briques pleines (21) et une paroi (52) du récipient (50),
    - entre les briques pleines (21) et le revêtement de sécurité (10),
    - entre les briques pleines (21) et un élément séparé (14, 30) dans le fond
    sont remplis au moins en partie d'une masse céramique réfractaire.
  13. Fond selon la revendication 1, pour lequel les briques pleines (21) sont disposées décalées en gradins dans la zone d'une surface (10o) du revêtement de sécurité (10), qui est inclinée d'au moins 1,5° par rapport à l'horizontale.
EP13150422.7A 2013-01-07 2013-01-07 Sol en céramique ignifuge Not-in-force EP2752260B9 (fr)

Priority Applications (23)

Application Number Priority Date Filing Date Title
HUE13150422A HUE032636T2 (en) 2013-01-07 2013-01-07 Refractory ceramic socket
SI201330555A SI2752260T1 (sl) 2013-01-07 2013-01-07 Ognjevarno keramično dno
PL13150422T PL2752260T3 (pl) 2013-01-07 2013-01-07 Ognioodporne dno ceramiczne
ES13150422.7T ES2619977T3 (es) 2013-01-07 2013-01-07 Base cerámica incombustible
EP13150422.7A EP2752260B9 (fr) 2013-01-07 2013-01-07 Sol en céramique ignifuge
UAA201505093A UA113564C2 (xx) 2013-01-07 2013-03-12 Жаростійке керамічне днище
CA2888450A CA2888450C (fr) 2013-01-07 2013-12-03 Base de ceramique a l'epreuve du feu
BR112015010340-5A BR112015010340B1 (pt) 2013-01-07 2013-12-03 Base de cerâmica à prova de fogo
PCT/EP2013/075299 WO2014106553A1 (fr) 2013-01-07 2013-12-03 Fond en ceramique refractaire
JP2015548328A JP2016507715A (ja) 2013-01-07 2013-12-03 耐火性セラミックボトム
CN201380062902.1A CN104903027B (zh) 2013-01-07 2013-12-03 耐火陶瓷基部
KR1020157011924A KR20150081284A (ko) 2013-01-07 2013-12-03 내화성 세라믹 바닥
EA201500476A EA028140B1 (ru) 2013-01-07 2013-12-03 Жаропрочное керамическое днище
US14/648,140 US9962764B2 (en) 2013-01-07 2013-12-03 Fireproof ceramic bottom
MX2015005327A MX361111B (es) 2013-01-07 2013-12-03 Base ceramica incombustible.
PE2015000638A PE20151115A1 (es) 2013-01-07 2013-12-03 Base ceramica incombustible
TW102148403A TWI552817B (zh) 2013-01-07 2013-12-26 防火陶瓷基座
ARP130105052A AR094297A1 (es) 2013-01-07 2013-12-27 Base ceramica incombustible
IL238355A IL238355B (en) 2013-01-07 2015-04-16 Fireproof ceramic base
CL2015001208A CL2015001208A1 (es) 2013-01-07 2015-05-06 Base cerámica incombustible
ZA2015/03865A ZA201503865B (en) 2013-01-07 2015-05-29 Fireproof ceramic bottom
SA515360534A SA515360534B1 (ar) 2013-01-07 2015-06-06 قاعدة خزفية مضادة للحريق
US15/871,743 US20180133792A1 (en) 2013-01-07 2018-01-15 Fireproof ceramic bottom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13150422.7A EP2752260B9 (fr) 2013-01-07 2013-01-07 Sol en céramique ignifuge

Publications (3)

Publication Number Publication Date
EP2752260A1 EP2752260A1 (fr) 2014-07-09
EP2752260B1 true EP2752260B1 (fr) 2017-02-01
EP2752260B9 EP2752260B9 (fr) 2017-05-17

Family

ID=47563183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13150422.7A Not-in-force EP2752260B9 (fr) 2013-01-07 2013-01-07 Sol en céramique ignifuge

Country Status (22)

Country Link
US (2) US9962764B2 (fr)
EP (1) EP2752260B9 (fr)
JP (1) JP2016507715A (fr)
KR (1) KR20150081284A (fr)
CN (1) CN104903027B (fr)
AR (1) AR094297A1 (fr)
BR (1) BR112015010340B1 (fr)
CA (1) CA2888450C (fr)
CL (1) CL2015001208A1 (fr)
EA (1) EA028140B1 (fr)
ES (1) ES2619977T3 (fr)
HU (1) HUE032636T2 (fr)
IL (1) IL238355B (fr)
MX (1) MX361111B (fr)
PE (1) PE20151115A1 (fr)
PL (1) PL2752260T3 (fr)
SA (1) SA515360534B1 (fr)
SI (1) SI2752260T1 (fr)
TW (1) TWI552817B (fr)
UA (1) UA113564C2 (fr)
WO (1) WO2014106553A1 (fr)
ZA (1) ZA201503865B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108778561B (zh) * 2016-03-18 2021-01-05 西门子股份公司 用于陶瓷型芯的工具和制造方法
CN108344300B (zh) * 2018-03-01 2023-06-13 邯郸钢铁集团有限责任公司 一种改进的加热炉炉墙结构
US11611145B2 (en) 2021-01-28 2023-03-21 Infinidome Ltd. Ground plane for asymmetric antenna

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JPS5220331B2 (fr) 1974-02-18 1977-06-02
JPS5148835A (ja) * 1974-10-24 1976-04-27 Sumitomo Metal Ind Tsutsujochibariraininguno rengazumiho
JPS5234822U (fr) * 1975-09-03 1977-03-11
DE2607598B2 (de) * 1976-02-25 1978-03-23 Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg Ausmauerung für kegelstumpfähnliche Wandkonstruktionen
DE3114069C2 (de) * 1981-04-08 1982-11-11 Didier-Werke Ag, 6200 Wiesbaden Feuerfestes Verschleißfutter für Roheisentransportgefäße
JPS62130212A (ja) * 1985-11-29 1987-06-12 Sumitomo Metal Ind Ltd 耐火炉側壁立ち上がり部の築炉構造
FR2654661B1 (fr) * 1989-11-17 1994-06-10 Lorraine Laminage Poche pour l'elaboration d'un metal munie d'un revetement refractaire le fond et procede de realisation d'un tel revetement refractaire de fond.
DE4201748C2 (de) * 1992-01-23 1994-01-05 Intocast Gmbh Verfahren zur Herstellung der feuerfesten Zustellung einer Gießpfanne
SE470435B (sv) * 1992-08-07 1994-03-07 Asea Brown Boveri Sätt och anordning att omröra en metallsmälta
US5879616A (en) 1996-01-22 1999-03-09 Harbison-Walker Refractories Company Metallurgical vessel and method of using the same
JPH1047861A (ja) * 1996-08-06 1998-02-20 Nisshin Steel Co Ltd 電気炉
US6673306B2 (en) 2001-04-13 2004-01-06 North American Refractories Co. Refractory lining for metallurgical vessel
GB2410455B (en) * 2003-10-11 2006-10-11 Pyrotek Engineering Materials Casting ladle
US8110142B2 (en) 2008-02-18 2012-02-07 North American Refractories Co. High yield ladle bottoms
US9005518B2 (en) * 2008-02-18 2015-04-14 North American Refractories Co. High yield ladle bottoms

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Also Published As

Publication number Publication date
MX2015005327A (es) 2015-07-14
CL2015001208A1 (es) 2015-08-07
UA113564C2 (xx) 2017-02-10
MX361111B (es) 2018-11-27
BR112015010340B1 (pt) 2020-10-06
IL238355B (en) 2019-06-30
EP2752260B9 (fr) 2017-05-17
BR112015010340A2 (pt) 2017-07-11
PE20151115A1 (es) 2015-08-06
WO2014106553A1 (fr) 2014-07-10
CA2888450A1 (fr) 2014-07-10
EA201500476A1 (ru) 2015-12-30
CA2888450C (fr) 2018-07-03
JP2016507715A (ja) 2016-03-10
CN104903027B (zh) 2018-10-19
TW201427780A (zh) 2014-07-16
HUE032636T2 (en) 2017-10-30
ZA201503865B (en) 2016-04-28
EA028140B1 (ru) 2017-10-31
US20180133792A1 (en) 2018-05-17
US9962764B2 (en) 2018-05-08
SI2752260T1 (sl) 2017-03-31
TWI552817B (zh) 2016-10-11
IL238355A0 (en) 2015-06-30
US20150298210A1 (en) 2015-10-22
EP2752260A1 (fr) 2014-07-09
PL2752260T3 (pl) 2017-07-31
AR094297A1 (es) 2015-07-22
KR20150081284A (ko) 2015-07-13
ES2619977T3 (es) 2017-06-27
SA515360534B1 (ar) 2018-08-02
CN104903027A (zh) 2015-09-09

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