EP0142399B1 - Plattenkühler für Hochöfen - Google Patents

Plattenkühler für Hochöfen Download PDF

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Publication number
EP0142399B1
EP0142399B1 EP84401858A EP84401858A EP0142399B1 EP 0142399 B1 EP0142399 B1 EP 0142399B1 EP 84401858 A EP84401858 A EP 84401858A EP 84401858 A EP84401858 A EP 84401858A EP 0142399 B1 EP0142399 B1 EP 0142399B1
Authority
EP
European Patent Office
Prior art keywords
tubes
bosses
cooling
plate
blast furnace
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
Application number
EP84401858A
Other languages
English (en)
French (fr)
Other versions
EP0142399A1 (de
Inventor
Pierre Rollot
Gérard Pierrat
Claude Le Scour
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.)
Sollac SA
Original Assignee
Sollac SA
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 Sollac SA filed Critical Sollac SA
Priority to AT84401858T priority Critical patent/ATE45594T1/de
Publication of EP0142399A1 publication Critical patent/EP0142399A1/de
Application granted granted Critical
Publication of EP0142399B1 publication Critical patent/EP0142399B1/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/10—Cooling; Devices therefor
    • 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
    • F27D1/12—Casings; Linings; Walls; Roofs incorporating 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0045—Cooling of furnaces the cooling medium passing a block, e.g. metallic
    • F27D2009/0048—Cooling of furnaces the cooling medium passing a block, e.g. metallic incorporating conduits for the medium
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0051—Cooling of furnaces comprising use of studs to transfer heat or retain the liner

Definitions

  • the present invention relates to cooling plates for blast furnaces. These cooling plates are elements placed against the internal face of the shielding and fulfill a dual function of cooling the refractory and shielding the passage of the heat flow towards the shielding.
  • the cooling plates consist of cast iron elements traversed in their mass by a network of tubes in which circulates a cooling fluid which is generally water. These cooling tubes open on one side of the cooling plates and pass through the shield, outside of which they are connected to cooling tubes of an adjacent upper or lower plate. The tubes thus connected determine the circulation lines of the fluid rising in a substantially vertical plane along the wall of the blast furnace, these lines being connected to an external circuit for circulation and cooling of the fluid.
  • patent FR 2 493 871 describes a cooling plate consisting of a cast iron element of substantially parallelepiped shape, in which are embedded longitudinal tubes arranged parallel to each other, these tubes opening onto a same main face, respectively at the upper and lower parts of the cooling plate, in a protective sheath, one of the original characteristics of which resides in the embossed shape of the face opposite to that where the cooling tubes open out.
  • the present invention relates to an improvement of this type of plate making it possible to increase the operating reliability, in particular thanks to a better balance of the thermomechanical stresses generated in the mass of the cooling plate.
  • the present invention thus relates to a blast furnace comprising a wall to be cooled and cooling plates each consisting of a cast iron element of substantially parallelepiped shape, in which are embedded longitudinal tubes for circulating a cooling fluid s' extending vertically along the wall to be cooled parallel to each other and opening onto the same face of the plate in a protective furnace, the face of the plate opposite to that where the cooling tubes open being embossed, characterized in that the embossing consists of rows of bosses regularly spaced transversely, the bosses of each row delimiting projecting external surfaces comprising roughly aligned and vertically extending portions of cylinders whose axes substantially coincide with the axes of the longitudinal tubes.
  • the inlets and / or the outlets of certain longitudinal tubes are offset laterally with respect to the longitudinal parts of these tubes and are preferably arranged in the vicinity of the angles of the plate.
  • the cooling plate 1 is seen along its face 2a exposed towards the inside of the blast furnace and which receives the refractory lining.
  • On its opposite face 2b open the inlets 3a and outlets 3b of longitudinal cooling tubes 3 embedded in the body of the plate 1.
  • the ends 3a and 3b of each cooling tube open from the plate 1 at the upper and lower parts respectively, at through sleeves 4a and 4b which are embedded in the mass of cast iron of the cooling plate and also serve for fixing the latter on the shielding, not shown, of the blast furnace.
  • the cooling plate 1 has, at its upper part, a curb 5 cooled by a transverse tube 6 arranged horizontally, of which the inlet end 6a adjacent to the outlet 3b of the tube 3, is also enclosed by a sheath 7 having one end embedded in the cooling plate.
  • the cooling plate 1 has on its face 2a a set of bosses 8a, 8b, 8c etc., identical, transversely spaced from each other and aligned longitudinally to form rows.
  • bosses have external surfaces 9 projecting from the face 2a of the plate, in the form of portions of cylinders.
  • the transverse end faces 10 of these bosses are bevelled.
  • the axes of the cylinder portions forming the surfaces 9 are aligned longitudinally, while the transverse faces 10 opposite two adjacent bosses form a transverse groove with a V-profile.
  • the cooling tubes 3 are embedded in the body of the cast iron plate 1 and their axes coincide with the axes of the cylindrical surfaces 9 forming bosses, so that they are placed at the places where the cross-sectional thickness of the plate is maximum.
  • the tube 3 is thus surrounded by a constant thickness of cast iron equal to the radius R, in which can be establish a temperature gradient which makes it possible to balance the thermomechanical stresses generated by the heat exchange between the heat flow from the interior of the blast furnace and the cooling tubes embedded in the cooling plate.
  • the plate shown 101 has a coping 105 disposed in its central part, in which is disposed a transverse tube 106 disposed horizontally. It has on its face 102a directed towards the inside of the blast furnace, five rows of bosses 108 delimiting, as previously, portions of cylinders 109 and separated by bevelled parts 110. To these five rows of bosses correspond five longitudinal cooling tubes 103 (1), 103 (2), 103 (3), 103 (4) and 103 (5).
  • the inlet and outlet of the central tube 103 (3) are arranged in the plane of symmetry of the plate; on the other hand, the inputs and outputs of the other tubes are grouped in the vicinity of the angles and of the longitudinal edges of the plate. This is achieved, for example, by bending the ends of the tubes 103 (2) and 103 (4) to bring them below and above, respectively, the inlets and outlets of the end tubes 103 (1) and 103 ( 5).
  • This arrangement is particularly advantageous since it makes it possible to increase the cooling in the zone of the corners of the plates which is usually particularly vulnerable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Blast Furnaces (AREA)
  • Furnace Details (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (4)

1. Hochofen mit einer zu kühlenden Wand und Kühlplatten (1), von denen jede durch ein Eisengußelement im wesentlichen parallelepipedischer Form gebildet ist, in welchem Längsrohre (3; 103) für den Umlauf eines Kühlfluids eingebettet sind, die sich vertikal längs der zu kühlenden Wand parallel zueinander erstrecken und auf der gleichen Seite (2b; 102b) der Platte in einer Schutzscheide (4a; 4b) münden, wobei die Seite (2a; 102a) der Platte, die derjenigen, in der die Kühlrohre münden, abgekehrt ist, gerippt ist, dadurch gekennzeichnet, daß die Rippung durch Reihen von in Querrichtung in regelmäßigen Abständen liegenden Buckeln (8; 108) gebildet ist, wobei die Buckel einer jeden Reihe (8; 108) vorspringende Außenflächen (9; 109) bestimmen, welche ungefähr ausgerichtete und sich vertikal erstreckende Zylinderabschnitte aufweisen, deren Achsen im wesentlichen mit den Achsen der Längsrohre (3; 103) zusammenfallen.
2. Hochofen nach Anspruch 1, dadurch gekennzeichnet, daß die Buckel (8; 108) längs deren Querseiten durch abgefaste (10; 110) Flächen begrenzt sind, wobei die einander gegenüberstehenden Flächen (10; 110) von zwei benachbarten Buckeln eine Querrinne mit V-förmigem Profil bestimmen.
3. Hochofen nach irgendeinem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die Eintritte und Austritte bestimmter Rohre (103(2)), (103(4)) bezüglich der Längsabschnitte dieser Rohre seitlich versetzt sind.
4. Hochofen nach Anspruch 3, dadurch gekennzeichnet, daß diese Eintritte und Austritte in eine Zone im Bereich einer jeden der Ecken der Platte gruppiert sind.
EP84401858A 1983-09-21 1984-09-19 Plattenkühler für Hochöfen Expired EP0142399B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84401858T ATE45594T1 (de) 1983-09-21 1984-09-19 Plattenkuehler fuer hochoefen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8315014A FR2552105B1 (fr) 1983-09-21 1983-09-21 Perfectionnement aux plaques de refroidissement pour hauts-fourneaux
FR8315014 1983-09-21

Publications (2)

Publication Number Publication Date
EP0142399A1 EP0142399A1 (de) 1985-05-22
EP0142399B1 true EP0142399B1 (de) 1989-08-16

Family

ID=9292407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401858A Expired EP0142399B1 (de) 1983-09-21 1984-09-19 Plattenkühler für Hochöfen

Country Status (5)

Country Link
US (1) US4669708A (de)
EP (1) EP0142399B1 (de)
AT (1) ATE45594T1 (de)
DE (1) DE3479430D1 (de)
FR (1) FR2552105B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937291A1 (de) * 1999-08-06 2001-02-15 Km Europa Metal Ag Kühlelement
CN100343395C (zh) * 2002-03-12 2007-10-17 Km欧洲钢铁股份有限公司 冷却元件
MY144669A (en) * 2004-02-04 2011-10-31 Tech Resources Pty Ltd Metallurgical vessel
AU2005210677B2 (en) * 2004-02-04 2009-12-10 Tata Steel Limited Metallurgical vessel
CA3024498C (en) * 2016-05-17 2021-05-25 Berry Metal Company Furnace stave
EP3540081B1 (de) * 2018-03-15 2022-09-21 Primetals Technologies Limited Plattenkühlerschutzsystem

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB351822A (en) * 1930-09-05 1931-07-02 Toyo Babcock Kabushiki Kaisha Improvements in and connected with furnace walls
FR52039E (fr) * 1942-04-04 1943-06-30 Heid Ag Maschf Dispositif pour la fixation par serrage et pour le déblocage de pièces à serrer comportant un siège conique sur ou dans des arbres
US3843106A (en) * 1972-04-28 1974-10-22 Ishikawajima Harima Heavy Ind Furnace
SU439178A1 (ru) * 1973-05-25 1977-11-25 Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов, Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии Холодильник доменной печи
CA1040109A (en) * 1973-10-15 1978-10-10 Wallis Separators Limited Filter screen with acoustic pressure wave transducer
FR2371652A2 (fr) * 1976-11-23 1978-06-16 Sofresid Plaque de refroidissement pour parois de fours a cuve, notamment pour hauts-fourneaux
GB1571789A (en) * 1976-12-30 1980-07-16 Brown & Sons Ltd James Furnace cooling element
NL7804072A (nl) * 1977-04-29 1978-10-31 Thyssen Ag Koelelement voor een metallurgische oven.
IT1160001B (it) * 1978-10-23 1987-03-04 Fontanini Paolo Pannelli raffreddati per pareti di forni elettrici
FR2493871A1 (fr) * 1980-11-07 1982-05-14 Usinor Plaques de refroidissement pour hauts fourneaux

Also Published As

Publication number Publication date
DE3479430D1 (en) 1989-09-21
EP0142399A1 (de) 1985-05-22
FR2552105A1 (fr) 1985-03-22
FR2552105B1 (fr) 1988-10-28
US4669708A (en) 1987-06-02
ATE45594T1 (de) 1989-09-15

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