EP2411752B1 - Verfahren zum vorwärmen von glühgut in einer haubenglühanlage, sowie haubenglühanlage - Google Patents

Verfahren zum vorwärmen von glühgut in einer haubenglühanlage, sowie haubenglühanlage Download PDF

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Publication number
EP2411752B1
EP2411752B1 EP10714155.8A EP10714155A EP2411752B1 EP 2411752 B1 EP2411752 B1 EP 2411752B1 EP 10714155 A EP10714155 A EP 10714155A EP 2411752 B1 EP2411752 B1 EP 2411752B1
Authority
EP
European Patent Office
Prior art keywords
protective
hood
heat
annealing
hoods
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.)
Not-in-force
Application number
EP10714155.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2411752A1 (de
Inventor
Robert Ebner
Gerhard Denk
Heribert Lochner
Andreas Sauschlager
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.)
Ebner Industrieofenbau GmbH
Original Assignee
Ebner Industrieofenbau 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
Application filed by Ebner Industrieofenbau GmbH filed Critical Ebner Industrieofenbau GmbH
Priority to PL10714155T priority Critical patent/PL2411752T3/pl
Publication of EP2411752A1 publication Critical patent/EP2411752A1/de
Application granted granted Critical
Publication of EP2411752B1 publication Critical patent/EP2411752B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/663—Bell-type furnaces
    • C21D9/677—Arrangements of heating devices
    • 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
    • F27B11/00—Bell-type furnaces
    • 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
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/04—Circulating atmospheres by mechanical means

Definitions

  • the invention relates to a method for preheating Glühgut in a Bebelglühstrom with two Glühgut under a protective cover in a protective atmosphere receiving Glühsockeln, wherein the heat-treated in a protective cover annealing with the aid of a gaseous, the two guards preheating from outside the heat carrier preheated is, which is conducted between the two protective hoods in the circuit and absorbs heat from a heat-treated in a protective annealing and emits to the vorzuannende annealing in the other protective hood.
  • Baubenglühanlagen serve to annealing material, such as hot or cold-formed strips or wires, under a protective gas to subject to a heat treatment.
  • annealing material such as hot or cold-formed strips or wires
  • the thermally insulated preheating and cooling chambers are connected by two lines, so using a fan, a gaseous heat transfer medium from the cooling chamber into the preheating chamber and the cooled heat carrier from the preheating in the cycle back into the Cooling chamber flows.
  • the heat transfer from the material to be annealed to the protective cover or from the protective cover to the annealed material takes place essentially by convection of the protective gas atmosphere with an unfavorable degree of efficiency.
  • the invention is therefore based on the object, a method of the type described for preheating Glühgut in a Bebelglühstrom in such a way that, despite an advantageous heat transfer, the risk of contamination of the already subjected to a heat treatment annealed material can be excluded.
  • the invention solves this problem by circulating the protective gas within the protective hoods, while the circulated heat carrier stream flows around the two protective hoods from the outside.
  • the circulated heat transfer medium does not come into contact with the annealed material, no impurities can be transferred from the cold to the hot annealing material via this heat transfer stream.
  • the heat transfer takes place via the protective hoods, in which protective gas is circulated for heat transport. Due to this fact, the heat transfer medium itself consist of air, without fear of oxide formation by the atmospheric oxygen on the Glühgutober Design.
  • the heat transfer medium therefore flows between the two enclosures in the circuit, where it absorbs heat via the protective cover with the hot annealed material and releases it via the other protective cover to the cold annealed material until a temperature compensation takes place.
  • the warm material to be annealed is then cooled in a conventional manner with a cooling hood, while the preheated Glühgut is to be heated to the respective treatment temperature by the enclosure is replaced by a heating hood.
  • Another embodiment of a Glühhaubenstrom for preheating the Glühguts arises when the circulation for the heat carrier has a two guard together enclosing, thermally insulated housing with at least one fan for the circulation of the heat carrier.
  • the heat transfer medium circulated in this common housing ensures a temperature compensation between the protective hoods with the hot and the cold annealed goods, the inert gas circulation in the protective hoods in turn providing heat transfer from or to the annealed material.
  • the protective hoods are to be supplied with the heat transfer medium.
  • baffles for the circulation of the heat carrier can be provided.
  • the heat carrier can be performed in a simple manner in the circuit.
  • the heat transfer conditions between the heat transfer medium and the protective cover within the housing can be optimized by means of corresponding guide devices which are to be provided between the housing and the protective cover.
  • Fig. 1 and 2 has the Bebelglühstrom two Glühsockeln 1 and 2 for receiving Glühgut 3, 4.
  • the glow base 1, 2 are provided with a fan 5 and with a guide 6 for the fan 5 for circulating an inert gas within a surrounding the Glühgut 3, 4 guard 7, 8.
  • For heat treatment of the Glühguts 3, 4 is over the protective hoods 7. 8 in a conventional manner, a heatable electrically or by means of gas burners heating hood slipped, but this is not shown for clarity reasons.
  • the protective hoods 7, 8 are each provided with a heat-insulated housing 9 in accordance with the illustrated method for preheating a annealing stock to be heat treated by means of the heat of an already heat treated annealing stock, the arrangement being such that the two housings 9 are connected to one another by flow channels 10 are connected to 9 lead a gaseous heat transfer between the two housings, as in particular the Fig. 2 can be removed.
  • the gaseous heat transfer medium preferably air, is displaced by means of blowers 11 into a circulating flow, in the region of which the protective hoods 7 and 8 are bathed by the heat carrier for heat input or output.
  • the heating cap used for this purpose is removed and replaced by the heat-insulated housing 9.
  • the recorded from the base 2, cold Glühgut 3 should be preheated before using a heating hood, with the help of the heat of the already heat-treated hot annealing 4.
  • the cold Glühgut 3 receiving protective cover 8 is provided with a housing 9, so that the heated heat transfer medium from the housing 9 for the protective hood 7 with the hot annealed material 4 is conveyed into the housing 9 for the protective hood 8 with the cold annealed material 3 via the fans 11.
  • the heat removed from the hot annealing 4 heat is fed to the cold annealing with the help of the circulation of the heat carrier and the Glühgut preheated accordingly until the temperature in the two housings 9 is substantially balanced.
  • the heat treatment of the preheated Glühguts 3 is continued by replacing the housing 9 by a heating hood, with the help of the preheated Glühgut 3 is further heated to the necessary treatment temperature. After the heat treatment of the Glühguts 3 whose heat can be used again for preheating of cold Glühgut, which is then subjected to the Glühsockel 1 an analogue preheating.
  • a common, heat-insulated housing 9 is provided in which by means of at least one blower 12, a gaseous heat transfer medium is circulated in such a way that the two protective hoods 7 and 8 in succession be lapped by the heat transfer stream.
  • baffles 13 may be provided for the circulation of the heat carrier within the enclosure, which force a corresponding flushing of the protective hoods 7 and 8, as the Fig. 4 can be removed.
  • the fan 12 may also be provided with a guide 14, which provides for a flow distribution of height.
  • the preheating of the cold Glühguts 3 on the Glühsockel 2 within the protective cover 8 is analogous to the Fig. 1 and 2 because the hot material, already subjected to a heat treatment annealed material 4 via the circulating inert gas to the protective cover 7 and transferred to the heat transfer heat of the protective cover 8 for the vorzu Dunnde Glühgut 3 and transferred to the circulating inert gas within the protective cover 8 to to preheat the annealing material 3.
  • a heating mantle 15 can fulfill the task of housing 9, because it's all about ensuring a protective cover 7 for the hot Glühgut 4 flowing around a heat transfer medium for receiving the hot Glühgut 4 dissipated via a protective gas circulation heat.
  • the provided with gas burners 16 or electrically heated heating hood 15 is provided for this purpose with a surrounding ring line 17, through which the heat transfer medium to be heated is introduced into the heating hood 15 in the bottom area via stub lines 18 distributed around the circumference, the gas burners 16 of which are naturally turned off after the heat treatment of the annealing stock 4.
  • an additional guide 20 may be provided in the form of a cover enclosing the guard 8, which is connected via an annular channel 21 to the flow channel 10, so that the heated heat carrier through bottom near passage openings 22 of the guide 20 in the annular space between the guard 8 and the guide 20, the protective cover 8 flows around and thereby gives off heat to the protective cover 8, so that this heat emitted can be transmitted from the inside of the protective cover 8 circulated inert gas to the annealed 3.
  • the thereby cooled heat transfer medium is supplied via the suction fan 19 and a flow channel 10 between the suction fan 19 and the ring line 17 of the heating hood 15 for heating.
  • the circulation flow of the heat carrier can be additionally controlled by control valves 24 in the flow channels 10.
  • the connecting pieces 25 may be connected to the flow channels 10 via corresponding couplings 26.
  • the heating hood 15 can also be on the right and the housing 9 (exchange hood) also on the left.
  • heating hood 15 and the housing 9 also alternately absorb the Glühgut to be heated or cooled and can be of a similar design and the circulation of the inert gas can be reversed understood itself.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Heat Treatment Of Articles (AREA)
  • Furnace Details (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Tunnel Furnaces (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP10714155.8A 2009-03-25 2010-03-18 Verfahren zum vorwärmen von glühgut in einer haubenglühanlage, sowie haubenglühanlage Not-in-force EP2411752B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10714155T PL2411752T3 (pl) 2009-03-25 2010-03-18 Sposób podgrzewania przedmiotów wyżarzanych w kapturowej instalacji do wyżarzania i kapturowa instalacja do wyżarzania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0048209A AT507423B1 (de) 2009-03-25 2009-03-25 Verfahren zum vorwärmen von glühgut in einer haubenglühanlage
PCT/AT2010/000082 WO2010108204A1 (de) 2009-03-25 2010-03-18 Verfahren zum vorwärmen von glühgut in einer haubenglühanlage

Publications (2)

Publication Number Publication Date
EP2411752A1 EP2411752A1 (de) 2012-02-01
EP2411752B1 true EP2411752B1 (de) 2017-05-17

Family

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EP10714155.8A Not-in-force EP2411752B1 (de) 2009-03-25 2010-03-18 Verfahren zum vorwärmen von glühgut in einer haubenglühanlage, sowie haubenglühanlage

Country Status (15)

Country Link
US (1) US8790115B2 (ja)
EP (1) EP2411752B1 (ja)
JP (1) JP5582319B2 (ja)
KR (1) KR20110130498A (ja)
CN (1) CN102362139B (ja)
AT (1) AT507423B1 (ja)
BR (1) BRPI1012713A2 (ja)
CA (1) CA2755867A1 (ja)
MX (1) MX2011010015A (ja)
PL (1) PL2411752T3 (ja)
RU (1) RU2528600C2 (ja)
TW (1) TW201043705A (ja)
UA (1) UA102592C2 (ja)
WO (1) WO2010108204A1 (ja)
ZA (1) ZA201107246B (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT508776B1 (de) * 2010-04-14 2011-04-15 Ebner Ind Ofenbau Verfahren zum vorwärmen von glühgut in einer haubenglühanlage
DE102010054537B4 (de) * 2010-12-15 2012-07-26 Gesellschaft für aero- und thermodynamische Verfahrenstechnik mbH Verfahren und Vorrichtung zum Anwärmen von Coils
DE102011088634B4 (de) 2011-12-14 2014-07-31 Ebner Industrieofenbau Gmbh Geschlossenes Transportfluidsystem zum ofeninternen Wärmeaustausch zwischen Glühgasen
DE102011088633A1 (de) 2011-12-14 2013-06-20 Ebner Industrieofenbau Gmbh Haubenofen mit innerhalb einer Schutzhaube positioniertem Wärmeabgabegerät, insbesondere gespeist von einer ofenraumexternen Energiequelle, zum Abgeben von Wärme an Glühgas
DE102012221511C5 (de) * 2012-11-23 2019-01-17 Ebner-Industrieofenbau Gmbh Kühlhaube zum langsamen Abkühlen von Glühgut
DE102012023430A1 (de) * 2012-11-30 2014-06-05 Bilstein Gmbh & Co. Kg Haubenglühofen sowie Verfahren zum Betreiben eines solchen
CN103331446B (zh) * 2013-05-20 2015-07-08 浙江郑诺复合材料有限公司 一种磁芯用低温热风循环热处理炉及其使用方法
CN103471385A (zh) * 2013-08-29 2013-12-25 江苏高皓工业炉有限公司 粗犷型罩式锯片烧结炉
WO2015105026A1 (ja) * 2014-01-07 2015-07-16 三建産業株式会社 回転式熱処理炉
CN104613757B (zh) * 2015-01-21 2016-11-23 临沂银凤电子科技股份有限公司 优化循环系统的磁性材料烧成钟罩炉
US20160287366A1 (en) * 2015-04-06 2016-10-06 University Of Virginia Patent Foundation Vapor delivery system and related methods thereof
CN107164627B (zh) * 2017-04-18 2018-10-16 燕山大学 一种铝合金管循环退火处理设备炉

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Publication number Priority date Publication date Assignee Title
JPS55107735A (en) * 1979-02-08 1980-08-19 Nippon Kokan Kk <Nkk> Batch annealing furnace operating method
SU1740459A1 (ru) * 1989-04-18 1992-06-15 Харьковский Филиал Всесоюзного Научно-Исследовательского, Проектно-Конструкторского И Технологического Института Электротермического Оборудования Отделение колпаковых печей и способ нагрева и охлаждени садки в отделении колпаковых печей

Also Published As

Publication number Publication date
US8790115B2 (en) 2014-07-29
JP5582319B2 (ja) 2014-09-03
UA102592C2 (ru) 2013-07-25
WO2010108204A1 (de) 2010-09-30
MX2011010015A (es) 2011-10-11
TW201043705A (en) 2010-12-16
CN102362139B (zh) 2014-03-05
CA2755867A1 (en) 2010-09-30
CN102362139A (zh) 2012-02-22
RU2528600C2 (ru) 2014-09-20
EP2411752A1 (de) 2012-02-01
RU2011142919A (ru) 2013-04-27
KR20110130498A (ko) 2011-12-05
ZA201107246B (en) 2012-12-27
JP2012521487A (ja) 2012-09-13
AT507423B1 (de) 2010-05-15
PL2411752T3 (pl) 2017-11-30
AT507423A4 (de) 2010-05-15
BRPI1012713A2 (pt) 2016-04-05
US20120009536A1 (en) 2012-01-12

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