[go: up one dir, main page]

WO2000040353A1 - Procede et dispositif pour le traitement de la fonte brute excedentaire - Google Patents

Procede et dispositif pour le traitement de la fonte brute excedentaire Download PDF

Info

Publication number
WO2000040353A1
WO2000040353A1 PCT/DE1999/003991 DE9903991W WO0040353A1 WO 2000040353 A1 WO2000040353 A1 WO 2000040353A1 DE 9903991 W DE9903991 W DE 9903991W WO 0040353 A1 WO0040353 A1 WO 0040353A1
Authority
WO
WIPO (PCT)
Prior art keywords
pig iron
molds
cast
mold walls
iron
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.)
Ceased
Application number
PCT/DE1999/003991
Other languages
German (de)
English (en)
Inventor
Ralf Evertz
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.)
Egon Evertz KG GmbH and Co
Original Assignee
Egon Evertz KG GmbH and Co
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 Egon Evertz KG GmbH and Co filed Critical Egon Evertz KG GmbH and Co
Publication of WO2000040353A1 publication Critical patent/WO2000040353A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D3/00—Pig or like casting

Definitions

  • the invention relates to a process for the treatment of pig iron, which is obtained in excess, the pig iron being poured into molds in portions, from which it is re-melted after solidification, if appropriate after intermediate storage.
  • the invention further relates to a device for treating pig iron, which is obtained in excess, with molds into which the pig iron obtained can be poured.
  • ingot machines which basically consist of a large-dimensional endless conveyor belt onto which molds are screwed, into which the molten pig iron is used from the torpedo ladle car used. will pour.
  • the length of the endless conveyor belt which can be 40 m to 60 m, is selected taking into account the cooling speed in such a way that liquid pig iron filled at the beginning of the conveyor path has solidified at the end of the conveyor belt, so that after the conveyor belt has been deflected, the solidified pig iron is removed from the molds in portions underlying containers can fall off.
  • the individual molds or the endless conveyor belt are sprayed with water to accelerate the solidification process.
  • the molds are preferably designed as steel molds which are lined with graphite plates on the inside. Steel molds can be manufactured inexpensively.
  • the molds are essentially cuboid, the four side walls being hydraulically displaceable horizontally, so that the resulting block for conventional gripping tools can be exposed from a closed container for holding the molten pig iron after the iron has solidified.
  • the solidified cast iron blocks e.g. Have dimensions of 0.6 mx 3 mx 11 m, have a weight of about 140 tons. This mass of iron takes about 5 hours to cool down.
  • the pig iron block is provided with predetermined breaking points, which facilitates the crushing of the pig iron blocks.
  • the pig iron blocks are prior to re-melting, e.g. the return to the blast furnace, in the drop unit or crushed using a curling iron.
  • this torpedo pour the dopfannenwagen filling quantity into two cast iron blocks of the same size. This is preferably done via double-sided slidable channels, from which the pig iron can flow simultaneously into two molds. This measure saves long conveying distances and multiple pouring.
  • the molds are closed with a lid after filling, so that there is a sealed housing which makes dedusting unnecessary.
  • Such closed containers do not have to go into a hall, but can also be moved outdoors.
  • the mold walls can be water-cooled to accelerate the solidification process of the pig iron, for example by using sprinkler systems.
  • the graphite formed on the cast iron block surface during solidification can preferably be easily extracted.
  • the molds used consist of molds with displaceable and / or extendable walls, which are preferably formed from steel molds and / or are lined with graphite plates.
  • the mold side walls can be moved hydraulically, pneumatically or mechanically.
  • FIG. 1 shows a cross section through a hall with a
  • Fig. 2 is a plan view of the casting pit according to Fig. 1 and
  • Fig. 3 is a cross-sectional view of a steel mold with apart side walls exposing the solidified pig iron block.
  • a hall 10 is equipped with a pit 11, the height h of which is determined by the height of the steel mold 12, of which four rows of four molds are provided in the present case (see FIG. 2).
  • an overhead crane 13 with double block tongs can also be provided in the hall as a lifting means for pig iron blocks.
  • one or more torpedo cars 15 can be moved along tracks, the center of which is identified by reference numeral 14, in such a way that the liquid channels are known in principle according to the prior art (see arrows 16 and 17)
  • Pig iron from the torpedo car can be poured simultaneously into two adjacent molds 12.
  • the molds used consist of a steel structure and have a floor and four side walls, two opposite side walls 18 and 19 of Fig. 3 can be seen.
  • the steel mold is essentially cuboid and has corresponding hydraulic or pneumatic actuation means each opposite side walls 18, 19 which can be moved apart. As is clear from FIG. 3, the side walls 18 and 19 rested on the pig iron block 20 in the closed state.
  • the side walls 18, 19 move into the position shown so that the pig iron block 20 can be removed by means of suitable lifting devices and can be used for further use. Thereafter, the side walls 18, 19 and the side walls, not shown, adjacent to these walls can be moved towards each other again, so that an open but otherwise closed cavity is formed in which pig iron can be poured.
  • the steel mold is lined with graphite plates 21, 22 on the inside.
  • the method according to the invention works as follows:
  • the hot metal accumulating in each case is poured into the steel mold 12 by means of one or more schematically illustrated torpedo cars 15 via suitable channels 16, 17.
  • Each of these steel molds holds liquid pig iron of 140 tons, i.e. eight torpedo ladle cars can be emptied over all 16 molds.
  • the mold walls 18, 19 are moved apart and the pig iron block, which in the present case has the dimensions 0.6 mx 3 mx 11 m, is removed. After crushing this pig iron block, the product obtained is fed to the blast furnace.
  • Water sprinkler systems arranged above the pit can also be provided to accelerate the solidification process.
  • the hall is equipped with a filter system in order to be able to absorb graphite.
  • each steel mold with a lid, so that this mold is closed after filling and brought into the open by means of suitable conveying means.
  • cast iron can be poured into two steel structures at the same time. Killing possible, with which a quantity of 7 to 8 to / min liquid pig iron can be transferred. It follows that a torpedo pan with a filling weight of 300 tons is emptied in 35 minutes. Already from these figures it can be seen that the daily output of 1600 tons of pig iron, which can be achieved with a conventional ingot casting machine with a length of 60 m, can be increased many times over.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour le traitement de la fonte brute excédentaire, selon lequel la fonte brute est coulée par portions dans des moules, puis après solidification, et éventuellement après stockage intermédiaire, amenée à une installation de refonte. Pour que l'exploitation de l'installation soit plus économique, il est proposé que la fonte brute liquide soit coulée dans des moules formés par des coquilles pourvues de parois retirables ou décalables, d'où le bloc de fonte brute est enlevé après libération de la fonte brute durcie par décalage ou retrait des parois de coquille.
PCT/DE1999/003991 1999-01-06 1999-12-10 Procede et dispositif pour le traitement de la fonte brute excedentaire Ceased WO2000040353A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999100189 DE19900189B4 (de) 1999-01-06 1999-01-06 Verfahren und Vorrichtung zur Behandlung von im Überschuß anfallendem Roheisen
DE19900189.8 1999-01-06

Publications (1)

Publication Number Publication Date
WO2000040353A1 true WO2000040353A1 (fr) 2000-07-13

Family

ID=7893625

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/003991 Ceased WO2000040353A1 (fr) 1999-01-06 1999-12-10 Procede et dispositif pour le traitement de la fonte brute excedentaire

Country Status (2)

Country Link
DE (1) DE19900189B4 (fr)
WO (1) WO2000040353A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE361282C (de) * 1922-10-13 Carl Rein Form zum Auffangen von Resteisen
US2632216A (en) * 1949-08-04 1953-03-24 Harry W Mcquaid Apparatus for making slab or billettype ingots
US4616690A (en) * 1983-01-06 1986-10-14 Societe Francaise D'electrometallurgie-Sofrem Process and apparatus for moulding ingots of ferro-alloys by chill casting in a cooled copper mould

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE816878C (de) * 1950-05-18 1951-10-15 Vaw Ver Aluminium Werke Ag Verfahren und Vorrichtung zum Giessen von Barren
GB1440312A (en) * 1972-07-26 1976-06-23 Shanks Mcewan England Ltd Method of dealing with molten metal which is not immediately required for use
GB2218020B (en) * 1988-04-27 1991-10-16 Taylor Ingotech Company Limite Ingot moulding machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE361282C (de) * 1922-10-13 Carl Rein Form zum Auffangen von Resteisen
US2632216A (en) * 1949-08-04 1953-03-24 Harry W Mcquaid Apparatus for making slab or billettype ingots
US4616690A (en) * 1983-01-06 1986-10-14 Societe Francaise D'electrometallurgie-Sofrem Process and apparatus for moulding ingots of ferro-alloys by chill casting in a cooled copper mould

Also Published As

Publication number Publication date
DE19900189A1 (de) 2000-07-13
DE19900189B4 (de) 2007-05-10

Similar Documents

Publication Publication Date Title
EP3259084A2 (fr) Procédé et installation pour produire des barres d'acier
WO2004098814A1 (fr) Installation de coulee a deux cylindres
DE2144389A1 (de) Vorrichtung und Verfahren zum Zerbrechen und Ausleeren von Sandformen
DE1276671B (de) Huettenwerksanordnung
DE102010044606A1 (de) Das Verfahren der Flüssigmetallbeschickung in der Stranggießanlage und die Vorrichtung für Realisierung des Verfahrens
EP1050356A1 (fr) Procédé et dispositif pour remplir des moules avec des métaux liquides
DE2404907A1 (de) Verfahren bei der zweistufen-trennung von giesslingen und giessformen aus sand oder aehnlichem material sowie anlage zur ausfuehrung dieses verfahrens
WO2000040353A1 (fr) Procede et dispositif pour le traitement de la fonte brute excedentaire
DE1919414C3 (fr)
EP0313959A2 (fr) Installation pour l'élaboration de l'acier, en particulier une mini-installation
DE3123651A1 (de) Verfahren und maschine fuer das abtrennen des giesssystems von gussstuecken
DE19540866B4 (de) Formanlage mit Form- und Handhabungsfunktion
DE3878507T2 (de) Gefaess und verfahren zum behandeln von metallschmelzen.
DE2162100C3 (de) Geformter Impfmittelkörper zum Impfen von Gußeisenschmelzen
DE3521140C2 (de) Verfahren und Kokillengiessanordnung zum Vergiessen einer Schmelze
AT301780B (de) Vorrichtung zum Anordnen und Wechseln von Zwischengefäßen über der Kokille einer Metall-Stranggußanlage
DE3322542C2 (fr)
DE102013008674A1 (de) Das Verfahren der Flüssigmetallbeschickung in der Stranggießanlage und die Vorrichtung für Realisierung des Verfahrens.
DE10308208A1 (de) Gießanlage
DE692031C (de) Verfahren und Einrichtung zur Verarbeitung von Hausabfaellen, insbesondere zu Duengemitteln
DE2363958C3 (de) Einrichtung zum Reinigen von Stahlwerkskokillen
AT217490B (de) Zustellvorrichtung für metallurgische Gefäße, wie Tiegel oder Konverter
AT304778B (de) Vorrichtung zum steigenden Gießen von Schlacke
DE1919413C3 (de) Vorrichtung zum Entfernen von in als AbstichgefäBe ausgebildeten Wagen oberflächlich erstarrten Carbidblöcken
DE2615098C3 (de) Verfahren zur rauchlosen Beschickung von Horizontalkammerkoksöfen und Füllwagen zur Durchführung des Verfahrens

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase