EP0298074A2 - Installation pour la coulée séparée de la scorie métallurgique et d'un bain de fusion à partir d'un mélange fusion métallique/scorie métallurgique - Google Patents

Installation pour la coulée séparée de la scorie métallurgique et d'un bain de fusion à partir d'un mélange fusion métallique/scorie métallurgique Download PDF

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Publication number
EP0298074A2
EP0298074A2 EP88890163A EP88890163A EP0298074A2 EP 0298074 A2 EP0298074 A2 EP 0298074A2 EP 88890163 A EP88890163 A EP 88890163A EP 88890163 A EP88890163 A EP 88890163A EP 0298074 A2 EP0298074 A2 EP 0298074A2
Authority
EP
European Patent Office
Prior art keywords
slag
casting
pouring
molten metal
pouring spout
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
EP88890163A
Other languages
German (de)
English (en)
Other versions
EP0298074A3 (en
EP0298074B1 (fr
Inventor
Industrieanlagenb Voest-Alpine
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau 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 Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP0298074A2 publication Critical patent/EP0298074A2/fr
Publication of EP0298074A3 publication Critical patent/EP0298074A3/de
Application granted granted Critical
Publication of EP0298074B1 publication Critical patent/EP0298074B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/14—Discharging devices, e.g. for slag
    • 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
    • F27D3/1545—Equipment for removing or retaining slag

Definitions

  • the invention relates to a system for the separate pouring of slag and molten metal from a molten metal / slag mixture, with a pouring spout with a pouring container for receiving the molten metal / slag mixture, which can be pivoted about an approximately horizontal pivot axis, and with a slag casting mold, which preferably as an endless plate conveyor is trained.
  • a plant of this type is known from EP-A - 0 205 416.
  • the casting tank of the known system serves as a collecting vessel for intermittent amounts of slag, the e.g. slag from several melts is continuously removed from the casting container, while the metal is discontinuously removed through a tap opening located at the lowest point of the casting container.
  • the casting tank of the known system is designed for the specific purpose of taking up slags of several melts and requires its own tap opening for the discontinuous tapping of the metal melt that accumulates.
  • the invention has for its object to provide a system of the type described in the introduction, in which the simplest possible casting container can be used and nevertheless the running along of molten metal when pouring off the liquid slag can be reliably avoided.
  • the expenditure on equipment is said to be the plant for recycling the slag is kept as low as possible and a separate tap opening for the molten metal is avoided.
  • a pivotable pouring trough is arranged between the pouring spout of the casting container and the slag casting mold, which, from a slag pouring position in which the slag from the pouring spout is guided over the pouring spout to the slag casting mold, into a metal casting position, in the metal melt from the pouring spout is guided to a metal melt receptacle, is pivotable.
  • the swiveling pouring trough makes it possible to pour the liquid metal deposited in the casting container out of the casting container without interrupting the pouring stream and to separate the slag and metal in a particularly simple manner.
  • a metal melt sensor is arranged in the pouring area of the pouring container, as a result of which the transition from molten slag to molten metal is easily recognizable on the pouring jet and the corresponding measures, such as pivoting the pouring channel and completely emptying the pouring container, can be taken.
  • the pivot axis of the pouring container is preferably arranged in the immediate vicinity of the free end of the pouring spout and near the point of impact of the melt jet in the pouring channel, as a result of which the position of the pouring jet remains almost unchanged during the pivoting of the pouring container and a control of the transition from slag melt to metal melt is simple and can accordingly be carried out with great accuracy and safety.
  • the pouring channel can be pivoted about a preferably approximately vertically directed axis, which is arranged approximately at the point of impact of the melt jet in the pouring channel, as a result of which a diversion of the pouring jet itself is unnecessary.
  • the molten metal sensor is preferably coupled to a swiveling device pivoting the casting trough via a control line, so that automatic control of the casting trough is possible depending on the material flowing out through the pouring spout.
  • the molten metal sensor is expediently arranged in a refractory lining of the pouring spout, as a result of which the molten metal sensor responds particularly precisely to a change in the flowing material.
  • the molten metal sensor is arranged adjacent to the pouring jet emerging from the pouring spout. This makes it possible to find sufficiency with a single molten metal sensor for a large number of casting containers.
  • FIG. 1 showing a side view
  • FIG. 2 showing a top view of the system according to the invention
  • Fig. 3 shows a further embodiment of a detail of the system on an enlarged scale in section.
  • FIG. 1 shows a casting container 2 placed on a fixed swivel bracket 1 with a lid 3 for receiving a molten metal / slag mixture.
  • moving endless plate conveyor belt 5 is provided, on which the slag poured from the casting container 2 solidifies.
  • the pouring container 2, which is designed without brick lining, has in its upper region on the side facing the conveyor belt 5 a pouring spout 6 which opens into a pouring channel 7 which extends obliquely downwards from the pouring region of the pouring container 2 to the conveyor belt 5.
  • the pouring trough 7 is pivotally mounted at its upper end on a crossbar 8 of the swivel bracket 1 and can thus be pivoted about a vertically directed axis 10 arranged in the region of the impact point 9 of the pouring jet in the pouring trough 7, etc. from a slag casting position A shown with a full line into a metal casting position B shown with a dash-dot line.
  • the pivoting movement takes place by means of a pressure medium cylinder 12 arranged on a bracket 11 of the pivot bracket 1, the piston rod 13 of which has its free end on the underside of the casting trough 7 near its free end is articulated.
  • a metal melt sensor 14 designed as an iron coreless coil is provided in the casting trough 7 in the area of the impact point 9 of the pouring jet.
  • the coil 14 is connected to an eddy current measuring device 15 shown in FIG. 2, which is coupled to the pressure medium cylinder 12 via a control line 16.
  • a metal melt receptacle 17 designed as a pan is arranged in the region below the free end of the casting trough 7 when it is pivoted into the metal casting position B.
  • the casting container 2 is by means of four support pins 19, 20 arranged at the same height and fastened in the lower region of its outer casing 18, two of which are each opposite each other and the axes 21, 22 of which are directed parallel to one another, normal to the longitudinal direction of the conveyor belt 5, supported on cross members 23, 24 of the swivel bracket 1 extending in the longitudinal direction of the conveyor belt 5. Furthermore, about halfway up the casting container 2, two diametrically opposed supporting pins 25 are rigidly fixed, which are directed parallel to the supporting pins 19, 20 and are used to transport the casting container 2.
  • pivot pins 28 are rigidly attached to supports 26, 27 of the pivot bracket 1, the longitudinal axes of the pivot pins 28 forming a horizontal pivot axis 29 being parallel to the axes 21, 22 of the support pins 19, 20 and the support pin 25 are directed.
  • the outer casing 18 of the casting container 2 are two opposing tilting frames 34, 35, each formed from a plurality of rigidly connected rods 30, 31, 32, 33 and extending parallel to the cross members 23, 24.
  • each tilting frame 34, 35 connects the support pin 25 and the support pin 19, 20 of the casting container 2 on one side thereof as well as an articulated socket 36 which engages with the pivot pin 28, whereby the casting container 2 and the Tilting frames 34, 35 form a rigid unit.
  • the slag / molten metal mixture is tapped into the casting tank 2.
  • the cover 3 is then placed on the casting tank 2 by means of a steel crane, not shown, and fixed thereon.
  • the latter After depositing the molten metal at the bottom of the casting container 2, the latter is placed on the swivel bracket 1 and a lifting device, not shown, is articulated to a bracket 37 fastened to the outer jacket 18 of the casting container 2 and the casting container 2 is pivoted about the horizontal pivot axis 29 arranged approximately at the level of the pouring spout 6 (shown in broken lines in Fig. 1).
  • the casting container 2 is moved in rapid traverse until the slag is poured out.
  • the slag is then poured out via the pouring spout 6 at a controlled, lower angular velocity, so that a uniform slag outflow is achieved.
  • the slag flows via the casting trough 7 located in slag casting position A onto the conveyor belt 5, on which it solidifies.
  • the molten metal flows through the pouring spout 6 into the pouring trough 7.
  • the metal melt is guided in the metal casting position B from the pouring spout 6 into the metal melt receiving vessel 17 without interrupting the pouring stream, thereby the risk of contamination of the conveyor belt 5 is eliminated and the casting container 2 can be completely emptied.
  • the pouring container 2 ' has a refractory lining 38, in which a spool 14' is arranged to observe the pouring spout at the pouring spout 6 '.
  • the leading through the jacket of the casting container 2 'to the outside to the eddy current measuring device, not shown, line 39 is provided in a heat-resistant protective tube 40.
  • the coil 14 ' responds early and particularly precisely to the outflow of molten metal from the casting container 2'.
  • the invention is not limited to the exemplary embodiments shown in the drawing, but can be modified in various ways.
  • a ratio pyrometer for observing the pouring jet may be provided.
  • the molten metal sensor can also be arranged laterally adjacent to the pouring jet emerging from the pouring spout.

Landscapes

  • 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 Charging Or Discharging (AREA)
  • Blast Furnaces (AREA)
EP88890163A 1987-07-03 1988-06-23 Installation pour la coulée séparée de la scorie métallurgique et d'un bain de fusion à partir d'un mélange fusion métallique/scorie métallurgique Expired - Lifetime EP0298074B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT168187A AT387738B (de) 1987-07-03 1987-07-03 Anlage zum getrennten abgiessen von huettenschlacke und metallschmelze aus einem metallschmelzen/huettenschlackengemisch
AT1681/87 1987-07-03

Publications (3)

Publication Number Publication Date
EP0298074A2 true EP0298074A2 (fr) 1989-01-04
EP0298074A3 EP0298074A3 (en) 1989-02-22
EP0298074B1 EP0298074B1 (fr) 1991-09-25

Family

ID=3518692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88890163A Expired - Lifetime EP0298074B1 (fr) 1987-07-03 1988-06-23 Installation pour la coulée séparée de la scorie métallurgique et d'un bain de fusion à partir d'un mélange fusion métallique/scorie métallurgique

Country Status (4)

Country Link
EP (1) EP0298074B1 (fr)
CN (1) CN1008516B (fr)
AT (1) AT387738B (fr)
DE (1) DE3865120D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409969A (en) * 1990-03-02 1995-04-25 Bridgestone Corporation Pneumatic tires
AT503049B1 (de) * 2005-12-05 2008-07-15 Hulek Anton Verfahren zum kontinuierlichen beschicken einer granulieranlage mit schmelzflüssiger hüttenschlacke

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1041696C (zh) * 1995-11-13 1999-01-20 大重集团公司 一种混铁车
CN112833675A (zh) * 2020-12-31 2021-05-25 宁波富山多种经营有限公司 一种自动扒渣机械手

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD3746A (fr) *
DE1433844A1 (de) * 1962-07-18 1969-04-03 Huettenwerksanlagen Mbh Ges Bewegliche Giessrinne fuer Metall- oder Eisenschmelzen
DE2325597A1 (de) * 1973-05-19 1974-12-05 Rheinstahl Ag Verfahren zur erzeugung von fluessigem stahl aus einem sonderroheisen
AT350090B (de) * 1975-12-17 1979-05-10 Voest Ag Verfahren und einrichtung zum verschliessen des stichloches eines metallurgischen gefaesses
US4175731A (en) * 1975-05-12 1979-11-27 Overdeck John M Method and means for utilizing waste heat of molten slag
JPS5569207A (en) * 1978-11-14 1980-05-24 Nippon Kokan Kk <Nkk> Separating apparatus for molten pig iron in blast furnace slag
JPS59113105A (ja) * 1982-12-21 1984-06-29 Nippon Steel Corp 高炉溶滓の連続処理装置
EP0175675A2 (fr) * 1984-09-18 1986-03-26 VOEST-ALPINE Aktiengesellschaft Chenal de coulée basculant pour le guidage de matière en fusion
DE3427268C2 (de) * 1983-08-18 1986-07-31 Metacon AG, Zürich Vorrichtung zum Feststellen des Vorhandenseins von metallischer Schmelze in einem Durchlaufkanal eines metallurgischen Ofens oder einer Gießpfanne
EP0205416A2 (fr) * 1985-06-13 1986-12-17 VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT m.b.H. Procédé de valorisation de laitier de métallurgie et installation à cet effet

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE173015C (fr) *
DE2810622A1 (de) * 1978-03-11 1979-09-20 Socerma Soc Verbesserte zufuhrvorrichtungen, insbesondere fuer stranggiessketten

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD3746A (fr) *
DE1433844A1 (de) * 1962-07-18 1969-04-03 Huettenwerksanlagen Mbh Ges Bewegliche Giessrinne fuer Metall- oder Eisenschmelzen
DE2325597A1 (de) * 1973-05-19 1974-12-05 Rheinstahl Ag Verfahren zur erzeugung von fluessigem stahl aus einem sonderroheisen
US4175731A (en) * 1975-05-12 1979-11-27 Overdeck John M Method and means for utilizing waste heat of molten slag
AT350090B (de) * 1975-12-17 1979-05-10 Voest Ag Verfahren und einrichtung zum verschliessen des stichloches eines metallurgischen gefaesses
JPS5569207A (en) * 1978-11-14 1980-05-24 Nippon Kokan Kk <Nkk> Separating apparatus for molten pig iron in blast furnace slag
JPS59113105A (ja) * 1982-12-21 1984-06-29 Nippon Steel Corp 高炉溶滓の連続処理装置
DE3427268C2 (de) * 1983-08-18 1986-07-31 Metacon AG, Zürich Vorrichtung zum Feststellen des Vorhandenseins von metallischer Schmelze in einem Durchlaufkanal eines metallurgischen Ofens oder einer Gießpfanne
EP0175675A2 (fr) * 1984-09-18 1986-03-26 VOEST-ALPINE Aktiengesellschaft Chenal de coulée basculant pour le guidage de matière en fusion
EP0205416A2 (fr) * 1985-06-13 1986-12-17 VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT m.b.H. Procédé de valorisation de laitier de métallurgie et installation à cet effet

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACT OF JAPAN, Band 4, Nr. 106 (C-20)(588), 30. Juli 1980; & JP - A -55 69207 (NIPPON KOKAN) 24.05.1980 *
PATENT ABSTRACTS OF JAPAN Band 4, Nr. 106 (C-20)(588), 30. Juli 1980; & JP-A-55 069 207 (NIPPON KOKAN) 24.05.1980 *
PATENT ABSTRACTS OF JAPAN Band 8, Nr. 232 (C-248)(1669), 25. Oktober 1984; & JP-A-59 113 105 (SHIN NIPPON SEITETSU) 29-06-1984 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409969A (en) * 1990-03-02 1995-04-25 Bridgestone Corporation Pneumatic tires
AT503049B1 (de) * 2005-12-05 2008-07-15 Hulek Anton Verfahren zum kontinuierlichen beschicken einer granulieranlage mit schmelzflüssiger hüttenschlacke

Also Published As

Publication number Publication date
EP0298074A3 (en) 1989-02-22
DE3865120D1 (de) 1991-10-31
ATA168187A (de) 1988-08-15
CN1031667A (zh) 1989-03-15
CN1008516B (zh) 1990-06-27
EP0298074B1 (fr) 1991-09-25
AT387738B (de) 1989-03-10

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