US3706343A - Stave cooling device employing double-tubes - Google Patents

Stave cooling device employing double-tubes Download PDF

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Publication number
US3706343A
US3706343A US150216A US3706343DA US3706343A US 3706343 A US3706343 A US 3706343A US 150216 A US150216 A US 150216A US 3706343D A US3706343D A US 3706343DA US 3706343 A US3706343 A US 3706343A
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US
United States
Prior art keywords
tube
double
main body
cast
stave
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 - Lifetime
Application number
US150216A
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English (en)
Inventor
Yoshinori Saiga
Kazunori Mohri
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IHI Corp
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IHI Corp
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Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
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Publication of US3706343A publication Critical patent/US3706343A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0056—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for ovens or furnaces

Definitions

  • ABSTRACT A stave cooling device wherein a double-drawn-steeltube is cast into a main-body of castable metal, the outer surface of the outer tube of said double-tube being closely welded to said main body and the inner tube of said double-tube serving as the passage of the coolant.
  • the present invention relatesto a stave cooling device employing double-tubes characterized by double-drawn-steel-tubes inserted or placed in a main body of cast-steel, cast-iron or other castable metal when said main body is cast, in such a manner that both ends of said double-tube may extend out of consequence the coolant leaks into the furnace.
  • carbon in the caststeel or -iron diffuses into the cooling tube so that the surface of the tube is cemented. Therefore the mechanical strength as well as ductility of the cooling tube are somewhat lowered so that the cracks can more easily propagate.
  • the cooling tube To prevent the cracks of the cooling tube, it must not be welded to the cast-steel or -iron, but when there is a space between the cast -steel or -iron and the cooling tube, the thermal conductivity or heat transfer between them is extremely lowered. Therefore the cooling effect is lowered accordingly.
  • the present invention gives the solution to the above defects and problems encountered in the prior art, and will become more apparent from the following description of the preferred embodiment thereof taken in consaid main body, the outer surface of the outer tube of j i i h h acgompanying drawing;
  • said double-tube being closely welded to said main body when it is cast, and the inner tube of said doubletube serving as the passage of the coolant.
  • the object of the invention is to provide a stave cooling device which has a high cooling efficiency and prevents the leakage of the coolant into the furnace even when the main bodies of the staves are cracked by the thermal stress, fatigue, shock and the like.
  • the prior art stave cooling devices are such that steel tubes are inserted into the staves when the latter are cast in order to pass the coolant such as cooling water or saturated water, whereby the heat received on the heat-receiving surfaces of the staves may be removed by the coolant.
  • the thermal conductivity or heat transfer between the cast-steel of the main body of the stave and the tube is an important factor determining the cooling efficiency. Therefore when the thermal conductivityor heat transfer is maintained at a highest degree, effective cooling may be attained. Therefore, it is required to weld the steel tube to the stave into a unitary construction in order to attain the highest degree of the thermal conductivity or heat transfer between said main body of the stave and the cooling tube.
  • FIG. 1 is a front view, partly broken, of one explanatory embodiment of the present invention.
  • FIG. 2 is a longitudinal sectional view thereof taken along the line A-A of FIG. 1.
  • A. stave generally comprises a main body a made of cast-steel or -iron.
  • a doubledrawn-steel-tube consisting of an outer tube b and an inner tube 0, both of which are inserted or placed in the main body a when it is cast.
  • both of the ends 1 and 2 of the double-drawn-steel-tube are extended out of the main body a, and the outer surface of the outer tube b is welded to the main body a so as to be constructed as a unit.
  • the coolant used in the operation of the blast furnace then flows through the inner tube c in the direction indicated by the arrows 3 and 4 so that the heat received by the heat-receiving surface 5 of the main body may be dissipated.
  • the present invention employs a double-drawn-steeltube which has a sufficient strength.
  • the inner and outer tubes 0 and b are mechanically closely in contact with each other.
  • the outer surface of the outer tube b is integrally welded to the main body a by these expedients the thermal conduction is better and the cooling efficiency is much improved.
  • the propagation is stopped at the interface between the outer and inner tubes b and c. In other words, the cracks will not propagate into the inner tube c so that the coolant in the tube c will not leak into the furnace.
  • the cooling system of the present invention is simple in construction and reliable in operation and has many advantageous effects hitherto unattained by the prior art.
  • a stave cooling device employing double-tubes comprising a double-drawn-steel-tube inserted in a main body a of cast-steel, cast-iron or castable metal when said main body is cast, in such a manner that both ends (1) and (2) of said double-tube may extend out of said main body (a), the outer surface of the outer tube (b) of said double-tube being closely welded to said l060ll 0183 main body a when it is cast and the inner tube c of said double-tube serving as the passage of the coolant.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Blast Furnaces (AREA)
US150216A 1970-06-04 1971-06-04 Stave cooling device employing double-tubes Expired - Lifetime US3706343A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5440370 1970-06-04

Publications (1)

Publication Number Publication Date
US3706343A true US3706343A (en) 1972-12-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
US150216A Expired - Lifetime US3706343A (en) 1970-06-04 1971-06-04 Stave cooling device employing double-tubes

Country Status (4)

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US (1) US3706343A (de)
DE (1) DE2127448C3 (de)
FR (1) FR2100720B1 (de)
GB (1) GB1300499A (de)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150818A (en) * 1977-04-21 1979-04-24 Thyssen Aktiengesellschaft vorm. Augus Thyssen-Hutte Cooling element for a metallurgical furnace
US4196775A (en) * 1977-09-19 1980-04-08 The Unites States Of America As Represented By The Secretary Of The Navy Shock-mounted, liquid cooled cold plate assembly
US4217954A (en) * 1978-02-03 1980-08-19 Gutehoffnungshutte Sterkrade Aktiengesellschaft Cooling plate for a furnace in a metallurgical plant
DE2951640A1 (de) * 1979-12-21 1981-07-02 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Kuehlplatte fuer einen huettenwerksofen
US4315620A (en) * 1979-04-19 1982-02-16 Klockner-Humboldt-Deutz Ag Stack for the thermal treatment of material
US4327899A (en) * 1979-04-09 1982-05-04 Nippon Kokan Kabushiki Kaisha Stave cooling device having unwelded double tube
US4335870A (en) * 1979-01-27 1982-06-22 Hoesch Werke Aktiengesellschaft Cooling element for use in metallurgical furnaces
WO1983002578A1 (en) * 1982-02-02 1983-08-04 Ioshpa, Vladimir, Grigorievich Method for manufacturing cooling plates for metallurgical furnaces and cooling plate obtained thereby
US4455733A (en) * 1980-05-08 1984-06-26 The Broken Hill Proprietary Company Limited Furnace cooling elements and method of forming furnace cooling elements
US4620507A (en) * 1981-03-06 1986-11-04 Hiromichi Saito Stave cooler
US4635711A (en) * 1985-02-15 1987-01-13 Harsco Corporation Double wall heat exchanger
US4870734A (en) * 1987-04-03 1989-10-03 Tui Industries Method of manufacturing high efficiency heat exchange tube
US5285845A (en) * 1991-01-15 1994-02-15 Nordinvent S.A. Heat exchanger element
US5290016A (en) * 1991-02-06 1994-03-01 Emil Elsner Arrangement for cooling vessel portions of a furnace, in particular a metallurgical furnace
US6536450B1 (en) * 1999-07-07 2003-03-25 Semitool, Inc. Fluid heating system for processing semiconductor materials
US6736150B2 (en) 1999-07-06 2004-05-18 Semitool, Inc. Fluid heating system for processing semiconductor materials
US20080296006A1 (en) * 2007-05-31 2008-12-04 Amerifab, Inc. Adjustable heat exchange apparatus and method of use
US20150107806A1 (en) * 2012-05-01 2015-04-23 Benteler Automobiltechnik Gmbh Double-walled heat exchanger tube
US20190024980A1 (en) * 2017-07-18 2019-01-24 Amerifab, Inc. Duct system with integrated working platforms
WO2019192074A1 (zh) * 2018-04-03 2019-10-10 莱芜市天铭冶金设备有限公司 一种高效长寿预穿管铸铁冷却壁及其制造工艺
US10871328B2 (en) 2017-01-30 2020-12-22 Amerifab, Inc. Top loading roof for electric arc, metallurgical or refining furnaces and system thereof
NL1043845B1 (en) * 2020-11-16 2022-06-30 Wang Xu A row type heat pipe temperature conducting device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57500929A (de) * 1980-05-13 1982-05-27
DE3129391C1 (de) * 1981-07-25 1982-11-04 Estel Hoesch Werke Ag, 4600 Dortmund Verfahren zur Herstellung von Gusskoerpern mit eingegossenen Rohren aus Stahl
AT374497B (de) * 1982-05-25 1984-04-25 Voest Alpine Ag Kuehlplatte fuer metallurgische oefen sowie verfahren zu ihrer herstellung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1090574A (en) * 1913-08-23 1914-03-17 James P Dovel Air-cooled blast-furnace stack.
US2743089A (en) * 1954-08-13 1956-04-24 Griscom Russell Co Heat exchanger tube sheet leakage prevention and detection construction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1090574A (en) * 1913-08-23 1914-03-17 James P Dovel Air-cooled blast-furnace stack.
US2743089A (en) * 1954-08-13 1956-04-24 Griscom Russell Co Heat exchanger tube sheet leakage prevention and detection construction

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150818A (en) * 1977-04-21 1979-04-24 Thyssen Aktiengesellschaft vorm. Augus Thyssen-Hutte Cooling element for a metallurgical furnace
US4196775A (en) * 1977-09-19 1980-04-08 The Unites States Of America As Represented By The Secretary Of The Navy Shock-mounted, liquid cooled cold plate assembly
US4217954A (en) * 1978-02-03 1980-08-19 Gutehoffnungshutte Sterkrade Aktiengesellschaft Cooling plate for a furnace in a metallurgical plant
US4335870A (en) * 1979-01-27 1982-06-22 Hoesch Werke Aktiengesellschaft Cooling element for use in metallurgical furnaces
US4327899A (en) * 1979-04-09 1982-05-04 Nippon Kokan Kabushiki Kaisha Stave cooling device having unwelded double tube
US4315620A (en) * 1979-04-19 1982-02-16 Klockner-Humboldt-Deutz Ag Stack for the thermal treatment of material
DE2951640A1 (de) * 1979-12-21 1981-07-02 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Kuehlplatte fuer einen huettenwerksofen
US4455733A (en) * 1980-05-08 1984-06-26 The Broken Hill Proprietary Company Limited Furnace cooling elements and method of forming furnace cooling elements
US4620507A (en) * 1981-03-06 1986-11-04 Hiromichi Saito Stave cooler
WO1983002578A1 (en) * 1982-02-02 1983-08-04 Ioshpa, Vladimir, Grigorievich Method for manufacturing cooling plates for metallurgical furnaces and cooling plate obtained thereby
DE3249343C2 (de) * 1982-02-02 1984-09-27 Institut problem lit'ja Akademii Nauk Ukrainskoj SSR, Kiev Verfahren zur Herstellung von K}hlplatten f}r H}ttenm{nnische \fen sowie eine K}hlplatte
US4572269A (en) * 1982-02-02 1986-02-25 Vsesojuzny Nauchno-Issledova-Telsky I Proektny Institut Po Ochistke Tekhnolo Method of manufacturing cooling plates for use in metallurgical furnaces and a cooling plate
US4635711A (en) * 1985-02-15 1987-01-13 Harsco Corporation Double wall heat exchanger
US4870734A (en) * 1987-04-03 1989-10-03 Tui Industries Method of manufacturing high efficiency heat exchange tube
US5285845A (en) * 1991-01-15 1994-02-15 Nordinvent S.A. Heat exchanger element
US5290016A (en) * 1991-02-06 1994-03-01 Emil Elsner Arrangement for cooling vessel portions of a furnace, in particular a metallurgical furnace
AU652225B2 (en) * 1991-02-06 1994-08-18 Mannesmann Aktiengesellschaft Device for cooling parts of the vessel of a furnace, especially a metallurgical furnace
US6736150B2 (en) 1999-07-06 2004-05-18 Semitool, Inc. Fluid heating system for processing semiconductor materials
US6536450B1 (en) * 1999-07-07 2003-03-25 Semitool, Inc. Fluid heating system for processing semiconductor materials
US20080296006A1 (en) * 2007-05-31 2008-12-04 Amerifab, Inc. Adjustable heat exchange apparatus and method of use
US10760854B2 (en) 2007-05-31 2020-09-01 Amerifab, Inc. Adjustable heat exchange apparatus and method of use
US20150107806A1 (en) * 2012-05-01 2015-04-23 Benteler Automobiltechnik Gmbh Double-walled heat exchanger tube
US9897387B2 (en) * 2012-05-01 2018-02-20 Benteler Automobiltechnik Gmbh Heat exchanger with double-walled tubes
US10871328B2 (en) 2017-01-30 2020-12-22 Amerifab, Inc. Top loading roof for electric arc, metallurgical or refining furnaces and system thereof
US20190024980A1 (en) * 2017-07-18 2019-01-24 Amerifab, Inc. Duct system with integrated working platforms
WO2019192074A1 (zh) * 2018-04-03 2019-10-10 莱芜市天铭冶金设备有限公司 一种高效长寿预穿管铸铁冷却壁及其制造工艺
NL1043845B1 (en) * 2020-11-16 2022-06-30 Wang Xu A row type heat pipe temperature conducting device

Also Published As

Publication number Publication date
FR2100720A1 (de) 1972-03-24
GB1300499A (en) 1972-12-20
DE2127448A1 (de) 1971-12-09
DE2127448B2 (de) 1975-01-16
FR2100720B1 (de) 1974-04-26
DE2127448C3 (de) 1975-08-21

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