EP1893930A1 - Four de fusion ou four de maintien a temperature - Google Patents

Four de fusion ou four de maintien a temperature

Info

Publication number
EP1893930A1
EP1893930A1 EP06753906A EP06753906A EP1893930A1 EP 1893930 A1 EP1893930 A1 EP 1893930A1 EP 06753906 A EP06753906 A EP 06753906A EP 06753906 A EP06753906 A EP 06753906A EP 1893930 A1 EP1893930 A1 EP 1893930A1
Authority
EP
European Patent Office
Prior art keywords
valve
melting
melt
holding furnace
furnace 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.)
Granted
Application number
EP06753906A
Other languages
German (de)
English (en)
Other versions
EP1893930B1 (fr
Inventor
Klaus Malpohl
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.)
Strikowestofen GmbH
Original Assignee
Strikowestofen 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 Strikowestofen GmbH filed Critical Strikowestofen GmbH
Publication of EP1893930A1 publication Critical patent/EP1893930A1/fr
Application granted granted Critical
Publication of EP1893930B1 publication Critical patent/EP1893930B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F27B3/19—Arrangements of devices for discharging
    • 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
    • F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
    • F27B3/065—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement tiltable
    • 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
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers

Definitions

  • the invention relates to a melting or holding furnace according to the preamble of the main claim.
  • melts or holding furnaces which receive a melt, for example from aluminum.
  • This melt is usually transferred to another furnace, for example in a furnace for melt treatment, wherein this transfer is realized in that the holding furnace is controlled tilted, whereby continuously or in small batches melt enters the other furnace or container.
  • the accuracy of the dosage of the melt is limited.
  • the melt for example, the aluminum melt in the transfer in contact with the ambient air and oxidized at the free surface.
  • the iron sector transport pans which have bottom valves, wherein a transfer of the melt from the pan is carried out in another container by opening the bottom valve, such as the plug. The good controllability of the melt flow through valves is known.
  • the invention has for its object to provide a melting and holding furnace, with which it is possible to transfer the melt in a metered manner in another container, without coming into contact with the ambient air and in which an interruption of the operation for Repair and maintenance when using a valve for transfer is not necessary.
  • closure valve is controllable by means of an electric drive so that the desired amount can be transferred in a metered manner, that is, in a quasi-continuous manner, the transfer amount of the melt is chosen so that the level in the receiving furnace remains almost constant.
  • valve stem and valve body has a gas feedthrough, since an oxide-free transfer of melt can thus be optimized, the surface of the melt in the feed chamber of the tapping or closing valve being covered with inert gas can be as well as also the surface of the melt in the chamber of the receiving container.
  • the gas supply also serves, after closing the valve, to push out the melt from the outlet block through the pressure equalization, so that it does not freeze.
  • FIG. 1 shows a section through an arrangement of the melting and holding furnace according to the invention with a closure valve and a receiving furnace
  • Fig. 2 is a partial section through the melting and holding furnace according to the invention in the tilted state with respect to the receiving furnace.
  • Fig. 1 the inventive melting or holding furnace 1 and a receiving furnace 2, in which the melt is transferred from the holding furnace 1, in the usual operating position of the furnace 1 are shown.
  • the melting or holding furnace 1 has a surrounding of a refractory housing 3 furnace chamber 4, in which the melt bath between a maximum level 5 and a minimum level 6 is added. In the housing 3 burner not shown, which provide the necessary temperature.
  • the melting furnace 1 is formed with a Vorlägekarmmer forming side pocket 8, which is connected to the remaining furnace space via a siphon (see Fig. 2).
  • a closure valve 10 for metering the melt to be discharged which is designed as a bottom tap valve, and which comprises a valve body 11 operable by a valve body 12.
  • a valve block 16 which forms the valve seat, and an outlet stone 13 connects.
  • the valve rod 11 is controlled via an electric drive, not shown, corresponding to different open positions of the valve body 12.
  • the outlet stone of the valve 10 projects through an opening in a cover of the receiving furnace 2 in this, wherein the received in the receiving furnace 2 melt bath also varies between a maximum level 14 and a minimum level 15 and the outlet Stone 13 so far protrudes into the receiving furnace 2 that it ends below the minimum level 15.
  • the melt transfer from the furnace 1 takes place in the receiving furnace 2 with the exclusion of air and oxygen.
  • the valve 10 has a gas feed 17 for inert gas, by which an oxide-free transfer of melt is to be optimized.
  • the valve rod and the valve body are provided with an axial bore 18, which is not shown in detail in FIG.
  • the inert gas supplied via the axial bore passes into the inert gas in the side channel. see 8 trained master chamber of the closure valve 10 and generates there an inert gas atmosphere.
  • the inert gas is passed through the outlet brick 13 of the valve 10 into the melt chamber of the receiving furnace 2, where it generates an inert gas atmosphere.
  • the housing 3 On the side of the housing 3 opposite the closure valve 10 there is a pouring opening 7, via which the holding furnace 1 can be emptied of residue.
  • the housing 3 is provided with a tilting device, not shown, which tilts the entire housing 3 with melt bath and side pocket 8 and valve 10 arranged therein such that, as shown in FIG. 2, the outlet block 13 of the valve is swung out of the receiving furnace 2.
  • the pivoting or tilting angle is, depending on the distance between the valve in the side pocket (also called bay) and the tilting axis, so dimensioned that the valve 10 is exposed even at maximum level 5. This can be seen in Fig. 2.
  • the tilting axis and the tilting direction is designated by 19 and 20 in FIG.
  • valve 10 and the exposed closure valve may e.g. be examined by visual inspection on metal approaches, in particular on the valve seat 16.
  • metal approaches in particular on the valve seat 16.
  • valve body 12 or plug of the valve rod 11 or the valve block 16 is then replaced. It is also possible to clean the bore in the valve body or in the valve block.
  • the furnace 1 is pivoted back again, so that the Holding operation of the furnace does not have to be interrupted.
  • the tilting device of the furnace 1 can also be used for its complete emptying or for its emptying through the opening 7, if required.
  • the holding furnace 1 about the tilting axis 19 in the tilting direction 20, i. tilted in the same direction as during the exposure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

La présente invention concerne un four de fusion ou un four de maintien à température (1) comprenant une chambre de four (4) qui est entourée d'une carcasse (3) et dans laquelle la masse en fusion est reçue à un niveau de remplissage maximal, ainsi qu'une ouverture de décharge permettant de transférer la masse en fusion dans un autre récipient. L'ouverture de décharge présente un robinet d'arrêt (10) qui est conçu pour doser la masse en fusion sortante et qui est recouvert par la masse en fusion en mode de fonctionnement normal. La carcasse (3) est reliée à un dispositif basculant qui fait basculer la carcasse de manière à pouvoir dégager le robinet d'arrêt de la masse en fusion, même au niveau de remplissage maximal, afin d'effectuer une réparation.
EP06753906.4A 2005-05-23 2006-05-22 Four de fusion ou four de maintien a temperature Active EP1893930B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005024924A DE102005024924B8 (de) 2005-05-23 2005-05-23 Schmelz- oder Warmhalteofen
PCT/EP2006/005049 WO2006125662A1 (fr) 2005-05-23 2006-05-22 Four de fusion ou four de maintien a temperature

Publications (2)

Publication Number Publication Date
EP1893930A1 true EP1893930A1 (fr) 2008-03-05
EP1893930B1 EP1893930B1 (fr) 2015-08-26

Family

ID=36911865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06753906.4A Active EP1893930B1 (fr) 2005-05-23 2006-05-22 Four de fusion ou four de maintien a temperature

Country Status (6)

Country Link
US (1) US20090212470A1 (fr)
EP (1) EP1893930B1 (fr)
DE (1) DE102005024924B8 (fr)
ES (1) ES2551012T3 (fr)
MX (1) MX2007014495A (fr)
WO (1) WO2006125662A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2803927A1 (fr) * 2013-05-17 2014-11-19 Siemens VAI Metals Technologies GmbH Récipient de four métallurgique et son procédé de fonctionnement

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458236A (en) * 1944-12-07 1949-01-04 Scovill Manufacturing Co Continuous pouring furnace
US3084925A (en) * 1958-04-23 1963-04-09 Kaiser Aluminium Chem Corp Apparatus for controlling the flow of molten metal
DE3373014D1 (en) * 1983-06-15 1987-09-17 Mannesmann Ag Process for operating a metallurgical melting-furnace, and metallurgical melting-furnace
DE3437810A1 (de) * 1984-10-16 1986-04-24 Kortec AG, Zug Verschlusseinrichtung fuer eine abstichoeffnung im boden eines metallurgischen gefaesses
DE8530922U1 (de) * 1985-10-31 1985-12-19 Badische Stahlwerke AG, 7640 Kehl Metallschmelzofen
US4795139A (en) * 1987-07-13 1989-01-03 Intersteel Technology, Inc. Apparatus for tapping slag-free steel from a continuous melting furnace
CA2185960C (fr) * 1995-02-13 2003-06-10 Fernando Sitges Menendez Dispositif d'elimination des impuretes lors de la coulee de metal
CH689728A5 (de) * 1995-03-28 1999-09-30 Concast Standard Ag Vorrichtung zum Regeln eines Zuflusses einer Metallschmelze mittels eines Stopfens.
DE19835087A1 (de) * 1998-07-24 2000-01-27 Mannesmann Ag Verfahren und Einrichtung zum schlackefreien Abstechen
DE19925550A1 (de) * 1999-06-04 2000-12-07 Sms Demag Ag Verfahren und Vorrichtung zum Entleeren von metallurgischen Schmelzgefäßen durch Kippen
TW574495B (en) * 2001-09-26 2004-02-01 Sms Demag Ag Arc furnace and method for operating the arc furnace
UA79599C2 (en) * 2001-09-26 2007-07-10 Sms Demag Ag Arc furnace with melt tapping through the bay window (variants) and method for arc furnace operating (variants)
SE527477C2 (sv) * 2003-11-04 2006-03-21 Mefos Metallurg Res I Ab Sätt att detektera slagginblandning

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006125662A1 *

Also Published As

Publication number Publication date
DE102005024924B4 (de) 2007-06-14
EP1893930B1 (fr) 2015-08-26
ES2551012T3 (es) 2015-11-13
WO2006125662A1 (fr) 2006-11-30
US20090212470A1 (en) 2009-08-27
MX2007014495A (es) 2008-02-12
DE102005024924A1 (de) 2006-12-07
DE102005024924B8 (de) 2007-10-25
WO2006125662A8 (fr) 2008-02-14

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