EP2717008A2 - Four industriel étanche au gaz de protection, notamment four à chambre, four poussant, four à sole tournante ou four à sole annulaire - Google Patents

Four industriel étanche au gaz de protection, notamment four à chambre, four poussant, four à sole tournante ou four à sole annulaire Download PDF

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Publication number
EP2717008A2
EP2717008A2 EP13004751.7A EP13004751A EP2717008A2 EP 2717008 A2 EP2717008 A2 EP 2717008A2 EP 13004751 A EP13004751 A EP 13004751A EP 2717008 A2 EP2717008 A2 EP 2717008A2
Authority
EP
European Patent Office
Prior art keywords
furnace
gas
heat treatment
lock
industrial 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.)
Withdrawn
Application number
EP13004751.7A
Other languages
German (de)
English (en)
Other versions
EP2717008A3 (fr
Inventor
Rolf Sarres
Marc Angenendt
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.)
Ipsen International GmbH
Original Assignee
Ipsen International 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 Ipsen International GmbH filed Critical Ipsen International GmbH
Publication of EP2717008A2 publication Critical patent/EP2717008A2/fr
Publication of EP2717008A3 publication Critical patent/EP2717008A3/fr
Withdrawn legal-status Critical Current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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • 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
    • F27B13/00—Furnaces with both stationary charge and progression of heating, e.g. of ring type or of the type in which a segmental kiln moves over a stationary charge
    • F27B13/06—Details, accessories or equipment specially adapted for furnaces of this type
    • 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
    • F27B17/00—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00
    • F27B17/0016—Chamber type furnaces
    • F27B17/0033—Chamber type furnaces the floor of the furnaces consisting of the support carrying the charge, e.g. car type furnaces
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
    • F27B9/22—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path on rails, e.g. under the action of scrapers or pushers
    • 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
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0286—Cooling in a vertical, e.g. annular, shaft
    • 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
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0073—Seals
    • 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
    • F27D2009/007—Cooling of charges therein
    • F27D2009/0089—Quenching

Definitions

  • the invention which is also referred to as "close up system" relates to a gas-tight, inert gas treated industrial furnace, in particular chamber furnace, pusher furnace, rotary hearth furnace or annular hearth furnace for heat treatment of batches of metallic workpieces.
  • a ring hearth furnace with hollow hub is proposed, which is suitable for the treatment of trays with bulk material.
  • Continuous ovens which operate on the push-through principle, are suitable for the heat treatment of charged parts with and without inert gas atmospheres.
  • the high-temperature heat treatment furnace and the quenching device regularly form a unit. This is linked together with low-temperature furnaces for preheating and tempering, with cleaning systems and batch transport systems to complex systems. Thus, these also allow easy handling of large batch weights.
  • thermodynamics and burner systems ensure optimum uniformity and reproducibility of the heat treatment results.
  • Rotary hearth furnaces are ovens with a plate-shaped stove and a large treatment room without zone separation.
  • Annular hearth furnaces are ovens which have an annular hearth and heat treatment room where the zones are separated by intermediate doors.
  • a fundamental advantage of the ring hearth furnaces is a central hearth drive, which does not require a plurality of drive motors compared to a piercing furnace.
  • the gentle transport of the workpieces is advantageous, since no relative displacement of the charge to the stove is required. This results in an extremely low mechanical load on the batch carriers and the hearth bottom, and lighter charge carriers can be used.
  • Rotary hearth furnaces with plate-shaped hearth regularly make sense only up to a limited size, since otherwise the furnace space and thus the gas consumption of the furnace become too large.
  • Ovens of this type are either manually or automatically loaded and unloaded and can be linked with other system components.
  • Such a furnace type is primarily suitable for single loading and unloading and is therefore used primarily for carburizing or reheating the workpieces prior to a press hardening process.
  • Ring hearth furnaces are suitable both for the individual feed and for a charge in the form of batches. While the single feed is predominantly used in conjunction with subsequent press hardening, batch feed is primarily in a subsequent quench in oil, salt or gas.
  • the invention has as its object to provide a gas-tight, inert gas treated industrial furnace of the type mentioned, which ensures a trouble-free, quality-compliant heat treatment process by a system of gas-tight separations before the heat treatment chamber and a quenching device (such as oil bath, salt bath or high pressure - Gasabschreck adopted) and a energetically improved heat treatment of the batches of metallic workpieces allows.
  • a quenching device such as oil bath, salt bath or high pressure - Gasabschreck adopted
  • the invention can be advantageously carried out on the basis of the features according to the invention by means of various plant configurations.
  • the quenching device is designed as an exit lock and lockable separated by the third gas-tight closure device of the heating and heat treatment chamber.
  • the entrance lock on the first gas-tight closure device and is compared to the heating and heat treatment chamber separated by the second gas-tight closure device.
  • the charging and discharging of the charge ensuring fumigation connections, inert gas supply and exhaust ducts are provided ( Fig. 4 ).
  • the entrance lock and designed as an exit lock quenching a Schutzgasabsaugung for a downstream use of the protective gas.
  • the invention opens up a particular potential for improvement on the one hand for the quality of the heat treatment on the workpiece and on the other hand for the energy-efficient use of the protective gas.
  • the solution of the invention opens up a maximum of efficiency, since an optimized heat treatment result can be achieved with simultaneous reduced use of inert gas. As a result, the cost of a z. B. to be hardened workpiece can be significantly reduced. Pusher systems designed according to the invention thus ensure improved, economical production.
  • the loading and unloading of the batches takes place via a lock
  • the loading and unloading can take place via one and the same lock, depending on the system concept, or several locks are used for this purpose.
  • the exit lock is usually a part of the quenching device which forms the unit with the high temperature heat treatment furnace.
  • the benefits of the invention are universal, whether chamber furnace, piercing furnace, rotary hearth or ring hearth.
  • the invention ensures in the ring hearth furnaces as in the puncture furnaces continuous use of an energy saving system, which also makes the inert gas used as fuel gas for other parts of the plant or the furnace itself usable.
  • atmospheric chamber furnaces are used as a high temperature heat treatment furnace.
  • the atmosphere chamber furnace is characterized by a combination of a heat treatment chamber and a quenching device.
  • the heat treatment chamber usually find all steps of the heat treatment such.
  • Said atmospheric chamber furnaces differ essentially in two ways of passing the batches through the furnace. In one way, the batches are loaded and unloaded via the quenching device of the furnace. In another way, the batches are loaded at the heat treatment chamber and unloaded at the quenching device.
  • the inventive design allows loading and unloading via the quenching device by a gas-tight separation between the heat treatment chamber and the quenching device.
  • the loading and unloading of the batch takes place without adversely affecting the gas atmosphere in the heat treatment chamber.
  • the atmosphere chamber furnace with the loading at the heat treatment chamber is also equipped with an upstream load lock, similar to the above described in the für Stammossfen.
  • the Fig. 1 to 4 show industrial furnaces 1 according to the invention, each with an entrance lock 2, which is lockable to the environment by a first gas-tight closure device 2.2.1.
  • Fig. 1 and Fig. 4 is provided between a heating and heat treatment chamber 3 and a subsequent, formed as an exit lock 4.1 quenching device 4 arranged third gas-tight closure device 3.1. This ensures that a pressure in the heating and heat treatment chamber 3 of an unspecified inert gas can be maintained during loading and unloading of a charge 5.
  • Fig. 1 and Fig. 2 is seen according to a vertical arrangement that the entrance lock 2 comprises a first 2.2 and a second lock chamber 2.3, which are superimposed and separated by an integrated, designed as a schematically illustrated Hubelevator second gas-tight closure means 2.2.2 are separated from each other.
  • the first lock chamber 2.2 with respect to the environment by the first gas-tight closure device 2.2.1 is lockable
  • the second lock chamber 2.3 is opposite the heating and heat treatment chamber 3 by a gas-tight door 2.3.1 lockable.
  • Fig. 4 shows the loading and unloading of the batch 5 assuring gassing 2.5, inert gas 2.6 and exhaust ducts 2.7, which supports a trouble-free, quality-oriented heat treatment process and an energetically improved heat treatment of the batches of metal workpieces is made possible.
  • a kiln plant according to the invention can be produced with conventional technological know-how.
  • For a respective operator of the furnace installation according to the invention opens up a higher utility value, which is characterized by a trouble-free, quality-oriented heat treatment process and an energetically improved heat treatment of the batches of metallic workpieces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Furnace Details (AREA)
EP13004751.7A 2012-10-08 2013-10-02 Four industriel étanche au gaz de protection, notamment four à chambre, four poussant, four à sole tournante ou four à sole annulaire Withdrawn EP2717008A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012019653.9A DE102012019653A1 (de) 2012-10-08 2012-10-08 Gasdichter schutzgasbegaster Industrieofen, insbesondere Kammerofen, Durchstoßofen, Drehherdofen oder Ringherdofen

Publications (2)

Publication Number Publication Date
EP2717008A2 true EP2717008A2 (fr) 2014-04-09
EP2717008A3 EP2717008A3 (fr) 2017-08-23

Family

ID=49303684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13004751.7A Withdrawn EP2717008A3 (fr) 2012-10-08 2013-10-02 Four industriel étanche au gaz de protection, notamment four à chambre, four poussant, four à sole tournante ou four à sole annulaire

Country Status (5)

Country Link
US (1) US9890999B2 (fr)
EP (1) EP2717008A3 (fr)
JP (1) JP2014077629A (fr)
CN (1) CN103710505A (fr)
DE (1) DE102012019653A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT524549B1 (de) * 2021-10-15 2022-07-15 Ebner Ind Ofenbau Industrieofenanlage
WO2022218832A1 (fr) * 2021-04-16 2022-10-20 Aerospace Transmission Technologies GmbH Dispositif de commande et procédé pour commander une installation et un processus de traitement thermique de pièces métalliques
WO2022218829A1 (fr) * 2021-04-16 2022-10-20 Aerospace Transmission Technologies GmbH Procédé de traitement thermique de pièces métalliques

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014118637A1 (de) * 2014-12-15 2016-06-16 Jasta-Armaturen Gmbh & Co. Kg Vorwärmofen für einen Bolzenofen
US20170074589A1 (en) 2015-09-11 2017-03-16 Ipsen Inc. System and Method for Facilitating the Maintenance of an Industrial Furnace
CN108863032B (zh) * 2018-09-14 2024-07-12 秦皇岛博硕光电设备股份有限公司 用于热成型工艺的装置及方法
DE102019109767A1 (de) * 2019-04-12 2020-10-15 Onejoon Gmbh Vorrichtung und Verfahren zur thermischen oder thermo-chemischen Behandlung von Material
CN113405367B (zh) * 2021-06-22 2023-05-23 四川长虹格润环保科技股份有限公司 锂电池回收粉还原设备及三元锂电池回收粉还原方法
CN120719107B (zh) * 2025-08-28 2025-12-02 介休市创新实业有限公司 一种耐火浇注料加热炉

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DE3506131C1 (de) 1985-02-22 1986-05-22 Aichelin GmbH, 7015 Korntal-Münchingen Verfahren zum Waermebehandeln von insbesondere metallischen Werkstuecken und Vorrichtung zur Durchfuehrung des Verfahrens
DE19947482A1 (de) 1999-10-01 2001-07-19 Karl Heess Gmbh & Co Verfahren zum Manipulieren von Werkstücken sowie Drehherdofen hierfür
DE10258728B3 (de) 2002-12-06 2004-03-18 Aichelin Engineering Gmbh Ofen zur Wärmebehandlung von Teilen

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Publication number Priority date Publication date Assignee Title
DE3506131C1 (de) 1985-02-22 1986-05-22 Aichelin GmbH, 7015 Korntal-Münchingen Verfahren zum Waermebehandeln von insbesondere metallischen Werkstuecken und Vorrichtung zur Durchfuehrung des Verfahrens
DE19947482A1 (de) 1999-10-01 2001-07-19 Karl Heess Gmbh & Co Verfahren zum Manipulieren von Werkstücken sowie Drehherdofen hierfür
DE10258728B3 (de) 2002-12-06 2004-03-18 Aichelin Engineering Gmbh Ofen zur Wärmebehandlung von Teilen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022218832A1 (fr) * 2021-04-16 2022-10-20 Aerospace Transmission Technologies GmbH Dispositif de commande et procédé pour commander une installation et un processus de traitement thermique de pièces métalliques
WO2022218829A1 (fr) * 2021-04-16 2022-10-20 Aerospace Transmission Technologies GmbH Procédé de traitement thermique de pièces métalliques
AT524549B1 (de) * 2021-10-15 2022-07-15 Ebner Ind Ofenbau Industrieofenanlage
AT524549A4 (de) * 2021-10-15 2022-07-15 Ebner Ind Ofenbau Industrieofenanlage

Also Published As

Publication number Publication date
US9890999B2 (en) 2018-02-13
US20140106287A1 (en) 2014-04-17
DE102012019653A1 (de) 2014-04-10
EP2717008A3 (fr) 2017-08-23
JP2014077629A (ja) 2014-05-01
CN103710505A (zh) 2014-04-09

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