EP1344838A2 - Elément de refroidissement - Google Patents

Elément de refroidissement Download PDF

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Publication number
EP1344838A2
EP1344838A2 EP03004701A EP03004701A EP1344838A2 EP 1344838 A2 EP1344838 A2 EP 1344838A2 EP 03004701 A EP03004701 A EP 03004701A EP 03004701 A EP03004701 A EP 03004701A EP 1344838 A2 EP1344838 A2 EP 1344838A2
Authority
EP
European Patent Office
Prior art keywords
cooling element
grooves
groove
coolant channels
element according
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.)
Withdrawn
Application number
EP03004701A
Other languages
German (de)
English (en)
Other versions
EP1344838A3 (fr
Inventor
Christof Dratner
Gerhard HUGENSCHÜTT
Hans-Günter Dr. Wobker
Frank Boert
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.)
KME Special Products GmbH and Co KG
Original Assignee
KM Europa Metal AG
KME Germany GmbH
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
Priority claimed from DE10219518A external-priority patent/DE10219518A1/de
Application filed by KM Europa Metal AG, KME Germany GmbH filed Critical KM Europa Metal AG
Publication of EP1344838A2 publication Critical patent/EP1344838A2/fr
Publication of EP1344838A3 publication Critical patent/EP1344838A3/fr
Withdrawn legal-status Critical Current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
    • 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 peculiar to furnaces of these types
    • F27B1/24—Cooling arrangements
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/24—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
    • 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
    • F27D2009/0056—Use of high thermoconductive elements
    • F27D2009/0062—Use of high thermoconductive elements made from copper or copper alloy

Definitions

  • the invention relates to a cooling element as a replaceable component of an inner Cladding of an arc or shaft furnace.
  • Cooling elements for shaft furnaces which are made of copper or a low one Alloyed copper alloy consist of a forged or rolled Raw block are made (DE 29 07 511 C1). Inside the cooling element are in the Use position vertical coolant channels arranged by mechanical Deep drilling are introduced. On the inside of a shaft furnace Side of the cooling element are horizontal grooves to fix the position of refractory material incorporated.
  • the cooling element expands thermally, whereby the element side facing the furnace interior is at significantly higher temperatures is exposed as the rear element side.
  • the temperature drops during or after the melting process the cooling element shrinks due to structural changes on the inside of the arc or Element side facing the shaft furnace stronger than on the outside Elements page. This leads to a curvature of the Cooling element that with increasing duration of use and the associated Temperature changes increase.
  • An improved dimensional stability can be achieved in that the Element side facing inside of the arc furnace by means of towards on the coolant channels extending grid-like grooves in a plurality is divided by surface segments (DE 199 37 291 A1).
  • the individual surface segments contract laterally during the cooling process, but they are Changes in length locally limited to the respective surface segment, so that Tensions do not affect neighboring surface segments and as a result
  • the internal stresses and curvatures of the cooling elements are effectively reduced can be.
  • this configuration of the cooling elements it can occur that the grooves clog up during operation with high-strength slag, so that when thermal alternating stress occurs, forces between can be transferred to the individual surface segments, from which ultimately one undesirable curvature of a cooling element can result.
  • the invention is based on the object of being a cooling element interchangeable part of an inner lining of an arc or Shaft furnace to provide the improved properties with regard to its Has dimensional stability.
  • a cooling element is made of copper or a low-alloy copper alloy crossed by coolant channels, the inside of an arc or Back of the cooling element facing away from the shaft furnace towards itself Grooves extending inside of these furnaces into a plurality of Surface segments is divided.
  • the advantage of the grooves on the back of the To provide cooling element is that the grooves during operation can not clog with slag and thermal changes in length of the individual surface segments do not adversely affect neighboring ones Surface segments can be transferred.
  • This configuration of the The cooling elements retain the functionality as intended for them Expansion joint over long service lives without the risk that the grooves become clogged or deformations due to internal stresses result.
  • the grooves are essentially arranged in a grid.
  • the grille can cover the entire back of a cooling element can be designed uniformly, in particular square or diamond-shaped surface elements particularly favorable in terms of production technology are realizable.
  • the lattice-shaped arrangement of the grooves or the surface segments in some areas varied. For example, in areas with particularly high thermal stress more grooves or surface segments can be provided than in areas less thermal stress, in some areas due to this configuration to be able to take into account differing residual stresses.
  • Grooves extending in the direction of the coolant channels are considered to be particularly advantageous extend (claim 2). Step in the area of the coolant channels the highest thermal fluctuations and thus also voltage fluctuations on, so that the thermally induced changes in length in these areas of the cooling element are largest.
  • the central longitudinal axes of the coolant channels at least in sections in the central longitudinal plane of those assigned to them Grooves.
  • the grooves are preferably perpendicular to the back of the cooling element introduced so that the central longitudinal planes of the grooves perpendicular to the back of the cooling element.
  • the subject of claim 6 is that between the bottom of a groove and the back of the cooling element measured groove depth over the course of a groove varied. It is in principle possible for a groove to run over its entire course has a constant groove depth, however, due to different groove depths Fluctuations in the temperature profile within the cooling element and therefore also locally varying length changes are advantageously taken into account.
  • a particularly effective weakening due to alternating thermal stress Bending moment generated in a cooling element is in a cooling element achieved with the features of claim 7. After that it is provided that the groove depth is greater than or equal to the smallest measured area Distance between the back of the cooling element and the the coolant channels surrounding walls.
  • This embodiment of the inventive concept takes into account the fact that grooves, so to speak, between two Coolant channels are arranged, are only limited in their groove depths, when a coolant channel crosses the course of the groove.
  • FIG. 1 shows a cooling element 1 made of copper or a low-alloy copper alloy.
  • the cooling element 1 is shown in its interior by a broken line Coolant channels 2, 3, 4 passes through, on the rear 5 of the cooling element 1 for fluid-conducting coolant channels 2, 3 each Coolant inlet 6 and a coolant outlet 7 are arranged.
  • the coolant channels 2, 3, 4 extend in the vertical direction in this exemplary embodiment and horizontal direction.
  • the horizontal grooves 8 and vertical grooves 9 extend under recess of the coolant inlets 6 and the coolant outlets 7 over the entire back 5 of the cooling element 1 and structure the back 5 in a grid-like arrangement of surface segments 10.
  • a groove 8, 9 is assigned to each coolant channel 2, 3, 4, the Coolant channels 2, 3, 4 each in the foot area 11 of the grooves 8, 9 assigned to them run.
  • the central longitudinal axes LA of the coolant channels 2, 3, 4 are at least in sections in the central longitudinal plane MLE of the grooves assigned to them 8, 9.
  • the central longitudinal planes MLE of the grooves 8, 9 are in this embodiment vertically on the rear side 5 of the cooling element 1.
  • Figure 2 shows a horizontal cross section through the cooling element 1 of Figure 1. Es it is clear that the between the back 5 of the cooling element 1 and the groove bottom 14 measured groove depth T varies over the course of the groove 8.
  • the groove depth T is dependent on the coolant channels running within the cooling element 1 2, 3, 4, which either extend in the direction of the groove 8 or their Cross course, as in this embodiment, the grooves 2 and 3. Since one Coolant channels 2, 3, 4 surrounding wall 15 must be present in any case, the groove depth T can only be greater in the areas than the smallest between the Back 5 of the cooling element 1 and the walls 15 measured distance, in which no coolant channels 2, 3, 4 run. This results in that in FIG. 2 exemplary illustrated course.
  • a thermal insulation layer 17 may be arranged in certain areas, for example also can be formed by slag deposits.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Blast Furnaces (AREA)
EP03004701A 2002-03-12 2003-03-04 Elément de refroidissement Withdrawn EP1344838A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10210785 2002-03-12
DE10210785 2002-03-12
DE10219518 2002-04-30
DE10219518A DE10219518A1 (de) 2002-03-12 2002-04-30 Kühlelement

Publications (2)

Publication Number Publication Date
EP1344838A2 true EP1344838A2 (fr) 2003-09-17
EP1344838A3 EP1344838A3 (fr) 2008-01-23

Family

ID=27766697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03004701A Withdrawn EP1344838A3 (fr) 2002-03-12 2003-03-04 Elément de refroidissement

Country Status (3)

Country Link
EP (1) EP1344838A3 (fr)
JP (1) JP2003269867A (fr)
CN (1) CN100343395C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7140270B2 (ja) 2019-03-27 2022-09-21 Ｊｆｅスチール株式会社 高炉の炉壁冷却用ステーブ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012132A1 (fr) * 1978-12-01 1980-06-11 Arbed S.A. Eléments de refroidissement métalliques pour fours industriels
DE2924991A1 (de) * 1979-06-21 1981-01-15 Lentjes Dampfkessel Ferd Wassergekuehltes ofenwandelement
EP0741190A1 (fr) * 1995-05-05 1996-11-06 MAN Gutehoffnungshütte Aktiengesellschaft Plaques de refroidissement pour fours à cuve
JP2001316709A (ja) * 2000-05-01 2001-11-16 Nippon Steel Corp ステーブクーラ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493871A1 (fr) * 1980-11-07 1982-05-14 Usinor Plaques de refroidissement pour hauts fourneaux
FR2552105B1 (fr) * 1983-09-21 1988-10-28 Usinor Perfectionnement aux plaques de refroidissement pour hauts-fourneaux
DE19937291A1 (de) * 1999-08-06 2001-02-15 Km Europa Metal Ag Kühlelement
CN1190503C (zh) * 2000-06-14 2005-02-23 鞍山钢铁集团公司 一种高炉冷却壁及制造工艺
CN2473215Y (zh) * 2001-03-23 2002-01-23 包钢(集团)公司设计院 高炉铸钢复合冷却壁
JP2008023916A (ja) * 2006-07-24 2008-02-07 Kinsus Interconnect Technology Corp 自動化製造過程におけるロール状フィルム体のパターン化方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012132A1 (fr) * 1978-12-01 1980-06-11 Arbed S.A. Eléments de refroidissement métalliques pour fours industriels
DE2924991A1 (de) * 1979-06-21 1981-01-15 Lentjes Dampfkessel Ferd Wassergekuehltes ofenwandelement
EP0741190A1 (fr) * 1995-05-05 1996-11-06 MAN Gutehoffnungshütte Aktiengesellschaft Plaques de refroidissement pour fours à cuve
JP2001316709A (ja) * 2000-05-01 2001-11-16 Nippon Steel Corp ステーブクーラ

Also Published As

Publication number Publication date
CN100343395C (zh) 2007-10-17
CN1444001A (zh) 2003-09-24
JP2003269867A (ja) 2003-09-25
EP1344838A3 (fr) 2008-01-23

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