US20040256772A1 - Cooling plate comprising a reinforcement element - Google Patents

Cooling plate comprising a reinforcement element Download PDF

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Publication number
US20040256772A1
US20040256772A1 US10/492,875 US49287504A US2004256772A1 US 20040256772 A1 US20040256772 A1 US 20040256772A1 US 49287504 A US49287504 A US 49287504A US 2004256772 A1 US2004256772 A1 US 2004256772A1
Authority
US
United States
Prior art keywords
cooling
plate
cooling plate
segment
displacement body
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.)
Abandoned
Application number
US10/492,875
Other languages
English (en)
Inventor
Herbert Scharinger
Franz Berner
Dave Osborne
Harald Sprenger
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.)
Primetals Technologies Austria GmbH
Primetals Asset Management UK Ltd
Original Assignee
Voest Alpine Industrienlagenbau GmbH
VAI Industries UK Ltd
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 Voest Alpine Industrienlagenbau GmbH, VAI Industries UK Ltd filed Critical Voest Alpine Industrienlagenbau GmbH
Assigned to VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH & CO., VAI INDUSTRIES (UK) LTD. reassignment VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH & CO. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OSBORNE, DAVE, BERNER, FRANZ, SCHARINGER, HERBERT, SPRENGER, HARALD
Publication of US20040256772A1 publication Critical patent/US20040256772A1/en
Abandoned legal-status Critical Current

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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
    • F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
    • 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
    • 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

Definitions

  • the invention relates to a cooling plate with reinforcing part, for example a reinforced top and/or bottom end, for melting vessels which are used to produce pig iron, blast furnaces and shaft furnaces provided with a refractory lining, in particular including CORE® melter gasifiers, consisting of copper or a low-alloy copper alloy, with cooling passages arranged in its interior, the cooling plate being manufactured from a forged or rolled block, the cooling passages being vertically running blind bores, and tongues and grooves being machined onto the side which faces the interior of the shaft furnace.
  • CORE® melter gasifiers consisting of copper or a low-alloy copper alloy
  • Cooling plates of this type are usually arranged between the casing and the refractory lining and are connected to a cooling system. On the side facing the process space, the cooling elements are partially provided with refractory material.
  • DE 39 25 280 has disclosed a cooling plate in which the cooling passages are formed by pipes which are cast into cast iron, and the bottom edge of the plate body is designed as a bearing lug for the refractory brickwork.
  • the bearing lug is likewise connected to the cooling system. Little heat is dispatched from these plates, on account of the low thermal conductivity of the cast iron and on account of the resistance between the cooling pipes and the plate body, caused by an oxide layer or an air gap.
  • DE 29 07 511 has disclosed a cooling plate which is produced from a forged or rolled block and the cooling passages are vertically running blind bores which have been formed by deep mechanical drilling.
  • the microstructure of the cooling plate is significantly denser and more homogenous than that of a cast copper plate. Voids, which are often found in cast copper plates, are prevented by the forming process. The strength values are higher and the thermal conductivity is more uniform and higher than that of the cast copper plates.
  • Mechanical production of the bores means that the desired position in terms of height and lateral position is accurately maintained, and as a result uniform dissipation of heat is ensured.
  • the cooling plate On the side facing the interior of the furnace, the cooling plate is lined with refractory bricks or with a refractory ramming compound. This reduces the cooling surface area of the plate, and in the event of wear to or loss of the pre-bricked refractory lining, extraction of heat from the furnace is limited. Furthermore, the cooling of the plate needs to be sufficiently intensive to keep the temperature of the hot side of the plate well below the softening point of copper.
  • DE-A 23 62 974 has disclosed a cooled shaft furnace with a steel casing, to the inner side of which cooling plates with substantially vertical inner tubes are connected; the tubes pass through the steel casing at the upper and lower ends of the cooling plate.
  • the cooling plate On the side remote from the steel casing, the cooling plate is provided with a holding protuberance or holding lug, through which another tube, running in a substantially horizontal plane, runs, with connections leading through the steel casing; at least some of the vertical tubes extend over a considerable part of the vertical dimension.
  • FR-A 22 30 730 has disclosed a cooler for the evaporative cooling of a blast furnace, this cooler comprising a plate with a collar, which is arranged transversely in the vicinity of the end of the plate, and tubes, which are mounted in the plate and in the said collar and in which a coolant flows.
  • the inlet and outlet ends of these tubes are arranged at different heights on the opposite side from the collar.
  • the tube for circulation of the coolant in the collar is configured in such a way that it is arranged in the collar in such a way that the inlet and outlet ends are located between the outlet ends of the tubes laid in the plate.
  • the ends of the parts of the circulation tube in the collar, which are located in the interior of this collar, are arranged at an angle of 2 to 4° with respect to the vertical, so that the circulation of the coolant from the inlet end to the outlet end of the tubes rises.
  • U.S. Pat. No. 4,071,230 has disclosed cooling elements for a shaft furnace which are secured to the inner side of the furnace shell.
  • the rectangular cooling element is composed of five metallic blocks which are arranged in a staggered formation above one another and are attached to two vertically running pairs of cooling tubes by means of suitable securing elements.
  • the pairs of tubes, with a cooling water inlet at the bottom and a cooling water inlet at the top, are routed through openings in the metallic furnace wall, and the metallic blocks are cooled only on the outer side of the side facing the blast furnace wall.
  • EP 0 705 906 A1 has disclosed a cooling plate which is manufactured from a forged or rolled copper block and in which cooling passages, which are introduced into the edges as vertical or horizontal blind bores of smaller diameter around the vertically arranged blind bores, are introduced in addition to the vertically running blind bores, in order to cool the edge zones.
  • EP 0 731 108 B1 describes a cooing plate with reinforced and cooled top end.
  • the cooling passages at the reinforcement are characterized by their arrangement and/or by the fact that they are produced by vertical and horizontal blind bores.
  • the cooling medium is supplied and discharged via cooling pipes, which may be included in the cooling system of the shaft furnace.
  • a drawback of this variant is the complicated and laborious production of the cooled top end, which often requires the tools to be changed during production of the blind bores.
  • a plurality of welds or soldered joints are required to tightly close off these blind bores.
  • these welds and joints are very close to the process chamber and are highly susceptible to failure. It is therefore desirable to minimize the number of these welds and joints.
  • the cooling passage surface area which is required to achieve the required cooling capacity is limited by the geometric design of the attached refractory supports.
  • the object of the invention is to provide a cooling plate with reinforcing part in which cooling and dissipation of heat in this reinforcing part are likewise uniform and homogenous, so that there too, improved cooling of the refractory furnace lining and of the furnace shell is ensured.
  • the number of welds required should be reduced to a minimum, and at the same time the available heat exchange surface area should be increased.
  • This object is achieved by virtue of the fact that at least one additional cooling segment is provided, which is provided with a cooling passage into which a displacement body is inserted.
  • the diameter of the cooling passage is selected to be as large as possible, and at least to be larger than the diameter of the coolant passages of the cooling plate.
  • the displacement body is designed as a cavity for routing coolant.
  • the displacement body expediently includes apertures which allow cooling medium to pass out of the cooling passage into the interior of the displacement body and from the latter back into the cooling passage.
  • bores for supplying and discharging cooling water open out into the cooling passage.
  • pipe sections for supplying and discharging cooling water open out into the displacement body, which is designed as a cavity, in which case the pipe sections are pushed into the bores and are screwed to the displacement body at the location where they open out.
  • the bores for supplying and discharging cooling water may be designed so as to run horizontally or at an angle.
  • FIG. 1 shows a horizontal section through the cooling plate with fitted refractory support
  • FIG. 2 shows a cross section through the cooling plate with a forged-out bead
  • FIG. 3 shows a cross section through a releasably attached cooling segment.
  • FIG. 1 shows a horizontal section through the cooling plate 1 with, by way of example, five vertically arranged blind bores 3 and with the cooling passage 5 , which is introduced in the cooling segment 4 and is formed by a horizontal bore, and the inserted displacement body 6 .
  • the cooling water is supplied to the blind bores 3 from below via the pipe attachments 2 , which are connected to the coolant supply lines, and the cooling passage 5 formed by the horizontal bore in the cooling segment 4 is likewise supplied with cooling water via pipe sections 2 .
  • Bores 7 are also arranged in the cooling plate 1 , in order to ensure the supply and removal of cooling water through the wall of the blast furnace shell via the pipe attachments 2 .
  • the cooling circuit of the cooling plate 1 and of the cooling segment 4 may be connected to the cooling system either as separate cooling circuits or as a common cooling circuit.
  • the displacement body 6 has apertures 11 , which allow cooling water to pass out of the cooling passage 5 into the interior of the displacement body 6 and back out of the displacement body 6 into the cooling passage 5 .
  • the direction of flow of cooling water is indicated by arrows.
  • FIG. 2 shows a section through the cooling plate 1 with the vertically arranged blind bores 3 , which are closed off in a known way at the lower or upper end, as desired, by welds or soldered joints. Cooling water is supplied and discharged via the pipe sections 2 .
  • a cooling bead 8 which is forged out of the block and into which the cooling passage 5 formed by the horizontal bore is introduced, is formed in the upper part of the cooling plate 1 .
  • a displacement body 6 is inserted in the cooling passage 5 , in order to ensure the appropriate flow velocity.
  • cooling water is supplied and discharged via inclined bores 7 .
  • a pipe section 12 which leads all the way into the displacement body 6 and is screwed to the latter, is inserted into each inclined bore 7 .
  • coolant is supplied into and discharged from the displacement body 6
  • grooves 9 which are in each case delimited by webs 10 , are machined into the cooling plate 1 and into the cooling bead 8 on the side facing the process chamber.
  • FIG. 3 shows a releasably fitted cooling segment 4 , into which a cooling passage 5 formed by a horizontal bore has been introduced.
  • the displacement body 6 is also illustrated.
  • this horizontal bore 5 is connected to the cooling circuit via horizontal bores 7 in the cooling plate 1 and then subsequently via pipe connections 2 leading through the wall of the shell.
US10/492,875 2001-10-17 2002-10-08 Cooling plate comprising a reinforcement element Abandoned US20040256772A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA16552001 2001-10-17
AT0165501A AT410717B (de) 2001-10-17 2001-10-17 Kühlplatte mit verstärkungsteil
PCT/EP2002/011240 WO2003033979A1 (de) 2001-10-17 2002-10-08 Kühlplatte mit verstärkungsteil

Publications (1)

Publication Number Publication Date
US20040256772A1 true US20040256772A1 (en) 2004-12-23

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ID=3688563

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/492,875 Abandoned US20040256772A1 (en) 2001-10-17 2002-10-08 Cooling plate comprising a reinforcement element

Country Status (7)

Country Link
US (1) US20040256772A1 (de)
EP (1) EP1436561A1 (de)
KR (1) KR20050034581A (de)
CN (1) CN1571909A (de)
AT (1) AT410717B (de)
BR (1) BR0213419A (de)
WO (1) WO2003033979A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120193843A1 (en) * 2011-01-27 2012-08-02 Macrae Allan J Thin stave cooler and support frame system
CN113945094A (zh) * 2021-10-09 2022-01-18 山东中茂散热器有限公司 一种炉体恒温总成

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107639544B (zh) * 2017-10-12 2023-05-23 无锡透平叶片有限公司 用于榫齿叶片叶根中间体直面磨削的冷却结构装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953008A (en) * 1973-05-25 1976-04-27 Kazimir Dominikovich Bashinsky Blast furnace evaporative cooler
US4071230A (en) * 1977-03-23 1978-01-31 Anatoly Vasilievich Zherdev Contrivance for the protection of the walls of a shaft furnace from the heat effect of metallurgical process
US5251882A (en) * 1989-07-31 1993-10-12 Man Gutehoffnungshutte Ag Liquid-carrying cooling element for shaft furnaces
US5676908A (en) * 1995-02-07 1997-10-14 Man Gutenoffungshutte Aktiengesellschaft Plate for cooling shaft furnaces

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE526704C (de) * 1927-11-24 1931-06-09 Balz Erzroestung G M B H Luftgekuehlter Ruehrarm fuer mechanische Roestoefen
NL7217255A (de) * 1972-12-19 1974-06-21
BE1007506A6 (fr) * 1993-09-24 1995-07-18 Centre Rech Metallurgique Garnissage refractaire pour un caisson de refroidissement d'un four metallurgique.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953008A (en) * 1973-05-25 1976-04-27 Kazimir Dominikovich Bashinsky Blast furnace evaporative cooler
US4071230A (en) * 1977-03-23 1978-01-31 Anatoly Vasilievich Zherdev Contrivance for the protection of the walls of a shaft furnace from the heat effect of metallurgical process
US5251882A (en) * 1989-07-31 1993-10-12 Man Gutehoffnungshutte Ag Liquid-carrying cooling element for shaft furnaces
US5676908A (en) * 1995-02-07 1997-10-14 Man Gutenoffungshutte Aktiengesellschaft Plate for cooling shaft furnaces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120193843A1 (en) * 2011-01-27 2012-08-02 Macrae Allan J Thin stave cooler and support frame system
US8834784B2 (en) * 2011-01-27 2014-09-16 Allan J. MacRae Thin stave cooler and support frame system
CN113945094A (zh) * 2021-10-09 2022-01-18 山东中茂散热器有限公司 一种炉体恒温总成

Also Published As

Publication number Publication date
KR20050034581A (ko) 2005-04-14
WO2003033979A1 (de) 2003-04-24
AT410717B (de) 2003-07-25
ATA16552001A (de) 2002-11-15
CN1571909A (zh) 2005-01-26
EP1436561A1 (de) 2004-07-14
BR0213419A (pt) 2004-11-03

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AS Assignment

Owner name: VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH & CO., AUSTR

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHARINGER, HERBERT;BERNER, FRANZ;OSBORNE, DAVE;AND OTHERS;REEL/FRAME:015824/0860;SIGNING DATES FROM 20040401 TO 20040405

Owner name: VAI INDUSTRIES (UK) LTD., UNITED KINGDOM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHARINGER, HERBERT;BERNER, FRANZ;OSBORNE, DAVE;AND OTHERS;REEL/FRAME:015824/0860;SIGNING DATES FROM 20040401 TO 20040405

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION