EP0471218A1 - Rouleau de four à sole à rouleaux - Google Patents
Rouleau de four à sole à rouleaux Download PDFInfo
- Publication number
- EP0471218A1 EP0471218A1 EP91112406A EP91112406A EP0471218A1 EP 0471218 A1 EP0471218 A1 EP 0471218A1 EP 91112406 A EP91112406 A EP 91112406A EP 91112406 A EP91112406 A EP 91112406A EP 0471218 A1 EP0471218 A1 EP 0471218A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fiber
- roller
- spray compound
- support rings
- fiber mat
- 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
Links
- 239000000835 fiber Substances 0.000 claims abstract description 74
- 239000007921 spray Substances 0.000 claims abstract description 36
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 34
- 239000000919 ceramic Substances 0.000 claims description 10
- 238000005524 ceramic coating Methods 0.000 claims description 2
- 239000004816 latex Substances 0.000 claims description 2
- 229920000126 latex Polymers 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
- F27D1/0009—Comprising ceramic fibre elements
-
- 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
- F27D1/144—Supports for ceramic fibre materials
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
- F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails
Definitions
- the invention relates to a roller for a roller furnace, in particular for the heat treatment of slabs, the roller having support rings at intervals and thermal insulation being arranged between the support rings.
- the slabs rest on the support rings and are transported through the roller furnace by means of the rollers for heat treatment.
- the roller interior is usually water-cooled.
- the thermal insulation is intended to protect the roll against the hot slab.
- DE 32 31 736 C2 describes a jacket for insulating a cooled sliding, support or cross tube in an oven.
- molded bodies on the underside of a ceramic fiber material and molded bodies on the upper tube side of a high-strength ceramic are provided.
- This structure is unsuitable for rotating rollers.
- Preformed insulation bodies result in joints in the thermal insulation of the roll. Such joints would affect the effectiveness of the heat insulation.
- Moldings for insulating pipes are also described in DE 31 25 440 A1 and in DE 36 09 047 A1. Such molded bodies are unsuitable for rollers, since they can hardly withstand the dynamic loads of a rotating roller and joint formation can be expected.
- the object of the invention is to propose a role of the type mentioned, the thermal insulation is constructed so that it withstands the dynamic loads on the role and the chemical loads arising from the material to be transported (slab).
- the above object is achieved in a roll of the type mentioned in that a needled first fiber mat is placed on the circumference of the roll between the support rings, that a fiber spray compound is sprayed onto the first fiber mat, which contains a binder that the fiber spray compound by means of Binder is connected to the first fiber mat and that a pre-compressed second fiber mat is located laterally between the support rings and the fiber spray compound.
- the fiber molding compound has favorable thermal insulation properties. As a result, the slab transported on the support rings of the roll and the roll are largely decoupled from one another thermally, so that neither the slab is cooled from the roll nor the roll is heated by the slab.
- the fiber spray compound extends over the entire circumference and is seamless in itself, it is avoided that scale of the slab or alkali residues of continuous casting powders of the slab can damage the roll.
- the fiber spray compound is held securely on the roll, since the first fiber mat, through its binding with the fiber spray compound, stabilizes the hold of the fiber spray compound on the roll and is itself solidified by the binder of the fiber spray compound migrating into it.
- the fiber spray compound withstands the centrifugal forces that arise during the rotation of the roller and the forces that occur during the accelerations of the roller, without breaking out partially.
- the pre-compressed, second fiber mat permanently closes the joints that exist or arise between the fiber spray compound and the support rings. Even a shrinkage of the fiber spray compound does not lead to open joints between the latter and the support rings, since the pre-compressed fiber mat adapts to joints.
- metal tensioning bands are placed around the roller, to which retaining anchors for the fiber spray compound are attached. This further stabilizes the fiber spray compound on the roll.
- the tension band is preferably tightened to the roller by means of screws. This eliminates the need for welded connections between the roller and the holding anchors.
- a metallic roller (1) has several metallic support rings (2) distributed over its length.
- Each support ring (2) consists of two spaced flange ring parts (3), an annular body (4) inserted between them and a tread part (5) fastened thereon.
- Metallic tensioning straps (6) are placed around the roller (1) between two adjacent support rings (2). Each strap (6) has angled ends (7). These are clamped against each other by means of a screw-nut connection (8) in such a way that the tensioning band (6) is stuck to the roller (1).
- Each retaining anchor (9) consists of a retaining pin (10) which is welded to the tension band (6) and a flat clamping piece (11) which is locked on the retaining pin (10).
- a first needled, binder-free fiber mat (12) made of ceramic fibers (blanket) is placed around the roller (1) between the support rings (2). This pierces the retaining pins (10).
- Precompressed second fiber mats (13) made of ceramic fibers are placed on the side of the support rings (2).
- the fiber mat (13) is a fiber mat of low initial density, which is compressed from this initial density to a thickness of approximately 50 mm by moistening to a thickness of 10 mm.
- a fiber spray compound (14) made of ceramic fibers is sprayed on between the second fiber mats (13) and the first fiber mat (12). It is suitable for this a fiber spray compound that contains colloidal Si0 2 as a binder. This fiber mass must then be dried to achieve its final strength.
- a fiber cement made of ceramic fibers with a hydraulically setting binder is also suitable as a fiber spray compound. This reaches its strength even at room temperature.
- the binder of the sprayed-on fiber spray compound (14) partially penetrates into the first fiber mat (12), so that on the one hand the first fiber mat (12) solidifies and on the other hand a bond is established between it and the fiber spray compound (14) so that the fiber spray compound ( 14) is securely held on the circumference of the roller (1).
- the clamping pieces (11) stabilize the fiber spray compound (14).
- the wall thickness of the fiber spray compound (14) is substantially greater, for example by a factor of 7 to 10, than that of the first fiber mat (12).
- the fiber spray compound (14) can be provided with a ceramic coating on its surface.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Tunnel Furnaces (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Nonwoven Fabrics (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4025935 | 1990-08-16 | ||
DE4025935A DE4025935A1 (de) | 1990-08-16 | 1990-08-16 | Rolle fuer einen rollenofen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0471218A1 true EP0471218A1 (fr) | 1992-02-19 |
EP0471218B1 EP0471218B1 (fr) | 1994-05-18 |
Family
ID=6412344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91112406A Expired - Lifetime EP0471218B1 (fr) | 1990-08-16 | 1991-07-24 | Rouleau de four à sole à rouleaux |
Country Status (4)
Country | Link |
---|---|
US (1) | US5143684A (fr) |
EP (1) | EP0471218B1 (fr) |
AT (1) | ATE105929T1 (fr) |
DE (2) | DE4025935A1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2685069A1 (fr) * | 1991-12-14 | 1993-06-18 | Loi Ind Ofenanlagen | Rouleau pour fours a rouleaux et procede de relisation. |
EP0633815A1 (fr) * | 1992-02-24 | 1995-01-18 | Bricmanage Inc | Amelioration apportee a un cylindre de four isolant et procede de fabrication. |
EP0642652A1 (fr) * | 1993-03-24 | 1995-03-15 | Italimpianti Of America, Inc. | Rouleaux pour four a haute temperature a sole entrainee par rouleaux |
EP0851195A1 (fr) * | 1996-12-27 | 1998-07-01 | Kubota Corporation | Rouleau à disques pour le transport de brames |
DE19923114A1 (de) * | 1999-05-19 | 2000-11-23 | Johannes Stark | Rolle für einen Warmbehandlungsofen |
DE102017208710A1 (de) | 2016-09-27 | 2018-03-29 | Sms Group Gmbh | Kühlbare Ofenrolle und Verfahren zum Betrieb einer solchen |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2707272B1 (fr) * | 1993-07-09 | 1995-09-15 | Stein Heurtey | Perfectionnements apportés aux rouleaux refroidis pour la manutention de produits notamment métallurgiques et sidérurgiques. |
US5891516A (en) * | 1998-06-12 | 1999-04-06 | Weavexx Corporation | Fabric for forming fiber cement articles |
DE10012940A1 (de) * | 2000-03-16 | 2001-09-20 | Loi Thermprocess Gmbh | Scheibenrolle für Rollenherdöfen |
US20050085148A1 (en) * | 2003-10-17 | 2005-04-21 | Thomas Baumgartner | Felt for forming fiber cement articles with multiplex base fabric |
US20060068665A1 (en) * | 2004-09-29 | 2006-03-30 | Heinz Pernegger | Seamed felt for forming fiber cement articles and related methods |
US20130008552A1 (en) | 2011-07-06 | 2013-01-10 | Hans Peter Breuer | Felt for forming fiber cement articles and related methods |
CN111811282A (zh) * | 2020-07-01 | 2020-10-23 | 武汉钢铁有限公司 | 水冷炉辊绝热防护层结构及其制备方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1929891A1 (de) * | 1969-06-12 | 1971-02-18 | Plibrico Co Gmbh | Verfahren zum Ummanteln der Rohre eines Tragrohrsystems in Stoss- oder Hubherdoefen |
FR2273224A1 (fr) * | 1974-05-28 | 1975-12-26 | Carborundum Co | |
DE2940320B1 (de) * | 1979-10-04 | 1981-02-12 | Bloom Eng Europa Gmbh | Feuerfeste Isolierung aus Isolierformkoerpern fuer OEfen |
GB2091844A (en) * | 1981-01-22 | 1982-08-04 | Nippon Steel Corp | Transport roll for transporting hot material and train of such transport rolls |
FR2508594A1 (fr) * | 1981-06-27 | 1982-12-31 | Promat | Gaine de protection thermique, pour les parties allongees d'une structure |
FR2532399A1 (fr) * | 1982-08-26 | 1984-03-02 | Didier Werke Ag | Preformes isolants pour le gainage de tubes refroidis dans des installations de chauffage |
US4848055A (en) * | 1988-05-09 | 1989-07-18 | A. P. Green Industries, Inc. | Center mounted insulating module for a furnace |
EP0345147A1 (fr) * | 1988-06-02 | 1989-12-06 | Stein Heurtey | Rouleau pour la manutention de produits sidérurgiques se déplaçant à l'intérieur d'un four |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4330912A (en) * | 1980-06-18 | 1982-05-25 | Crucible Inc. | Furnace roll |
JPS60145317A (ja) * | 1983-12-30 | 1985-07-31 | Nippon Steel Corp | 加熱炉の水平スキツドビ−ムパイプ構造 |
JPS60152615A (ja) * | 1984-01-23 | 1985-08-10 | Chugai Ro Kogyo Kaisha Ltd | 工業炉内の支持部材 |
DE3609047A1 (de) * | 1985-03-29 | 1987-01-29 | Bloom Eng Europa Gmbh | Feuerfeste ummantelung fuer rohre in vorwaermoefen |
-
1990
- 1990-08-16 DE DE4025935A patent/DE4025935A1/de not_active Withdrawn
-
1991
- 1991-05-15 US US07/700,459 patent/US5143684A/en not_active Expired - Fee Related
- 1991-07-24 EP EP91112406A patent/EP0471218B1/fr not_active Expired - Lifetime
- 1991-07-24 AT AT91112406T patent/ATE105929T1/de not_active IP Right Cessation
- 1991-07-24 DE DE59101656T patent/DE59101656D1/de not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1929891A1 (de) * | 1969-06-12 | 1971-02-18 | Plibrico Co Gmbh | Verfahren zum Ummanteln der Rohre eines Tragrohrsystems in Stoss- oder Hubherdoefen |
FR2273224A1 (fr) * | 1974-05-28 | 1975-12-26 | Carborundum Co | |
DE2940320B1 (de) * | 1979-10-04 | 1981-02-12 | Bloom Eng Europa Gmbh | Feuerfeste Isolierung aus Isolierformkoerpern fuer OEfen |
GB2091844A (en) * | 1981-01-22 | 1982-08-04 | Nippon Steel Corp | Transport roll for transporting hot material and train of such transport rolls |
FR2508594A1 (fr) * | 1981-06-27 | 1982-12-31 | Promat | Gaine de protection thermique, pour les parties allongees d'une structure |
FR2532399A1 (fr) * | 1982-08-26 | 1984-03-02 | Didier Werke Ag | Preformes isolants pour le gainage de tubes refroidis dans des installations de chauffage |
US4848055A (en) * | 1988-05-09 | 1989-07-18 | A. P. Green Industries, Inc. | Center mounted insulating module for a furnace |
EP0345147A1 (fr) * | 1988-06-02 | 1989-12-06 | Stein Heurtey | Rouleau pour la manutention de produits sidérurgiques se déplaçant à l'intérieur d'un four |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2685069A1 (fr) * | 1991-12-14 | 1993-06-18 | Loi Ind Ofenanlagen | Rouleau pour fours a rouleaux et procede de relisation. |
EP0633815A1 (fr) * | 1992-02-24 | 1995-01-18 | Bricmanage Inc | Amelioration apportee a un cylindre de four isolant et procede de fabrication. |
EP0633815A4 (en) * | 1992-02-24 | 1995-02-01 | Bricmanage, Inc. | Improvement in an insulated furnace roller and method of manufacture. |
EP0642652A1 (fr) * | 1993-03-24 | 1995-03-15 | Italimpianti Of America, Inc. | Rouleaux pour four a haute temperature a sole entrainee par rouleaux |
EP0642652A4 (fr) * | 1993-03-24 | 1995-06-07 | Italimpianti America | Rouleaux pour four a haute temperature a sole entrainee par rouleaux. |
EP0851195A1 (fr) * | 1996-12-27 | 1998-07-01 | Kubota Corporation | Rouleau à disques pour le transport de brames |
US5918719A (en) * | 1996-12-27 | 1999-07-06 | Kubota Corporation | Tire roller for transporting slabs |
KR100439256B1 (ko) * | 1996-12-27 | 2004-08-09 | 가부시끼 가이샤 구보다 | 슬래브반송용타이어롤러 |
DE19923114A1 (de) * | 1999-05-19 | 2000-11-23 | Johannes Stark | Rolle für einen Warmbehandlungsofen |
DE19923114C2 (de) * | 1999-05-19 | 2001-12-13 | Johannes Stark | Rolle für einen Warmbehandlungsofen |
DE102017208710A1 (de) | 2016-09-27 | 2018-03-29 | Sms Group Gmbh | Kühlbare Ofenrolle und Verfahren zum Betrieb einer solchen |
WO2018059940A1 (fr) | 2016-09-27 | 2018-04-05 | Sms Group Gmbh | Rouleau de four refroidissable et procédé de fonctionnement |
Also Published As
Publication number | Publication date |
---|---|
DE4025935A1 (de) | 1992-02-20 |
EP0471218B1 (fr) | 1994-05-18 |
DE59101656D1 (de) | 1994-06-23 |
US5143684A (en) | 1992-09-01 |
ATE105929T1 (de) | 1994-06-15 |
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