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EP4090482A1 - Fermeture coulissante de récipient métallurgique - Google Patents

Fermeture coulissante de récipient métallurgique

Info

Publication number
EP4090482A1
EP4090482A1 EP20821211.8A EP20821211A EP4090482A1 EP 4090482 A1 EP4090482 A1 EP 4090482A1 EP 20821211 A EP20821211 A EP 20821211A EP 4090482 A1 EP4090482 A1 EP 4090482A1
Authority
EP
European Patent Office
Prior art keywords
sliding
closure
slide
closure plate
plate
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.)
Pending
Application number
EP20821211.8A
Other languages
German (de)
English (en)
Inventor
Goran Vukovic
René Christen
Kurt Ackermann
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.)
Refractory Intellectual Property GmbH and Co KG
Original Assignee
Refractory Intellectual Property GmbH and Co KG
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 Refractory Intellectual Property GmbH and Co KG filed Critical Refractory Intellectual Property GmbH and Co KG
Publication of EP4090482A1 publication Critical patent/EP4090482A1/fr
Pending legal-status Critical Current

Links

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
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/24—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings characterised by a rectilinearly movable plate
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4653—Tapholes; Opening or plugging thereof
    • 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

  • Slide closure for a metallurgical vessel The invention relates to a slide closure for a metallurgical vessel with a tapping hole for pouring off molten metal or slag, with a slide housing that can be fastened to the vessel and a closure plate that can be displaced therein for opening and closing the tapping hole.
  • EP 2 318 559 on a copper anode furnace for cleaning molten copper is provided with a fixed and a displaceable closure plate.
  • the spout is on the side in the housing wall of the furnace aligned so that the copper casting takes place in a tilted, approximately horizontal position of the furnace. Accordingly, the sliding lock is aligned approximately perpendicular to the central axis of the furnace.
  • This furnace designed as a drum, comprises a cylindrical steel jacket and a refractory lining, with a refractory perforated brick and an adjoining refractory sleeve being embedded in the pouring area, each of which forms an outlet opening. Connected to this is the fixed refractory closure plate and the displaceable refractory closure plate, whereby the outlet from the furnace drum can be throttled or closed by moving the slide plate.
  • the invention is based on the object of creating a sliding lock of the type mentioned at the outset which, with a structurally simple structure, enables high operational reliability and simple operation and maintenance.
  • this object is achieved in that the sliding lock only has this sliding locking plate in the slide housing without a stationary locking plate.
  • Such a sliding closure offers several advantages over a conventional one with two or more closure plates. On the one hand, it consists of fewer components and can therefore be produced more cost-effectively, because the sleeve block, the closure plate and also the pouring sleeve can be made from an inexpensive metal material such as copper or steel. On the other hand, the slide lock is less prone to failure and also requires simpler maintenance. It also eliminates the need for the otherwise necessary operation of manually plugging the tapping hole in order to close it.
  • the sliding closure according to the invention can easily be adapted to any tapping hole. It goes without saying that these advantages are not limited to the use of the slide closure for pouring slag,
  • the invention also provides that the closure plate of the sliding lock is pressed against the sliding surface of the furnace by tensioning elements arranged in the valve housing, which are relaxed when the locking plate is moved outside of their area of action and there the locking plate swings out of the sliding housing in the unloaded state make possible. In this way, the closure plate can be easily inspected and, if necessary, replaced without the need for complex manipulations.
  • the invention also provides that the closure plate is mounted in a slide carriage with rollers, preferably arranged in pairs, which run along the guides of a support frame of the slide housing that is loaded by the bracing elements, the guides outside the area of action of the closure plate are designed as ramps, the inclination of which is dimensioned such that the guides are lowered there by a height that relaxes the tensioning organs. In this way it is possible to reduce the tension of the Relieve tensioning organs by moving the sliding carriage further.
  • the invention also provides that the front pair of rollers of the sliding carriage at the end of the ramps can be rotated in recesses of pivoting parts in the support frame, while the rear pair of rollers is rotatable through a gap that remains free between the guides can be swiveled out.
  • an exchangeable insert made of metal, graphite or ceramic material in the area of greater wear and tear.
  • the invention also provides that a protruding pouring sleeve adjoins the closure plate, which is preferably oriented either perpendicular to the direction of displacement of the closure plate or at an angle of, for example, 30 ° to the perpendicular to this direction of displacement.
  • This pouring sleeve can serve as a guide for a drill or lance for opening or burning out the tapping hole before or after the slag is poured off. It also helps to prevent the slag from splashing, especially at the start of tapping. In addition, with the appropriate shape, it can be used to guide the slag flow in a targeted manner towards a channel. It is particularly advantageous if the sliding surface of the furnace is formed by a sleeve block made of copper or refractory material. Such a block can, however, also easily be installed in the tap hole area of the furnace lining, with or without cooling, such as, for example, water, air, nitrogen, ionic liquids or the like.
  • FIG. 1 shows a longitudinal section of a sliding lock according to the invention in the closed position
  • FIG. 2 shows a perspective longitudinal section of the sliding lock according to FIG. 1;
  • FIG. 3 shows a perspective view of the slide lock according to FIG. 1 with the slide carriage pivoted out; and FIG. 4 shows a perspective longitudinal section of a variant of a sliding lock.
  • the slide closure 10 shown in FIGS. 1 to 3 is used to pour slag through a tap hole 1 of a partially shown metallurgical vessel 2 which is provided with a further spout, not shown in detail, for pouring off a molten metal.
  • a metallurgical vessel is particularly suitable for pouring non-ferrous metals such as copper or ferro-alloys, but it could also be used in converters, electric furnaces or the like, in which molten steel and slag are poured off.
  • the slide lock 10 consists essentially of a slide housing 3, which can be fastened to the vessel 2, with a support frame 4 and a slide carriage 5 for the exchangeable accommodation of a closure plate 6.
  • the latter can be moved in the support frame 4 by means of a hydraulic cylinder 13 that can be coupled to it, the stroke of which is specified between an open and a closed position when pouring.
  • the support frame 4 is provided with a hollow profile-shaped cross section on its four sides.
  • a protruding pouring sleeve 16 adjoins the closure plate 6 and runs together with the tapping hole 1 at an angle of 30 ° to the perpendicular to the direction of displacement of the closure plate 6.
  • its upper side wall, on which the sliding closure 10 is mounted with its base plate 8 is also shaped outwards at an angle of 30 °.
  • the tapping hole 1 is therefore oriented in such a way that it runs approximately horizontally in this upright furnace position.
  • the sliding closure 10 has only this displaceable closure plate 6 without one or more further stationary closure plates.
  • This closure plate 6 can be pushed directly onto a sliding surface 7 of a sleeve block 9 extending around the tapping hole 1 in the vessel 2, this sleeve block 9 being made of copper and / or a refractory material. In principle, it could also be made in several layers or in several parts or the like.
  • the closure plate 6 can be provided with an exchangeable insert made of metal, graphite or ceramic material in the area of the through hole.
  • the sleeve block 9, the closure plate 6 and / or also the pouring sleeve 16 can be made of an inexpensive metal material such as steel, copper or the like.
  • the sliding carriage 5 has two rollers 14a, 14b arranged in pairs on the side as sliding elements, which are guided by bracing elements on guides 15a, 15b 11 run along the support frame 4 that can be clamped on the slide housing 3 and thus evenly transfer the pressure force of the clamping elements 11 to the slide carriage 5 and the closure plate 6.
  • These guides 15a, 15b are designed at their ends as ramps 19a, 19b, the inclination of which is dimensioned such that they are lowered there by a height amount which relaxes the spring bolts 10.
  • pivoting device 20 By means of a pivoting device 20, the sliding carriage 5 with the closure plate 6 can be pivoted out of or into the support frame 4 after it has been shifted outside the effective area.
  • This pivoting device 20 is composed of pivoting parts 23 that can be tilted on both sides in the support frame 4, which with the front Corresponding roller pair 14a. These two pivot parts 23 can each be rotated in two positions.
  • pivoting parts 23 of pivoting device 20 form, on the one hand, a stroke limiting stop 23a at the end of one of the guides 15a, so that the slide carriage 5 cannot be released from the bracing force in the operational state.
  • recesses 21 in the pivoting parts 23 leading away from the furnace 2 enable the rollers 14a to be introduced into such a recess 21 as shown, and consequently the rollers 14a and 14a by rotating the pivoting parts 23 so that the slide carriage 5 can be brought onto the guides 15a and clamped.
  • the other pair of rollers 14b of the slide carriage can be pushed in through a corresponding space 22 between the guides 15a, 15b and then pushed onto the guides 15b.
  • the sliding lock 30 according to FIG. 4 is designed essentially the same as that according to FIGS. 1 to 3 and therefore only the differences are shown below.
  • the same reference numerals are used for the same components as in the case of the slide lock 10 according to FIG.
  • the main difference of this slide closure 30 is that the tap hole 31 and with it the pouring sleeve 36 are aligned with their axes perpendicular to the direction of displacement of the closure plate 6. This results in a somewhat simpler construction with this sliding closure than with the one according to FIG. 1.
  • the sleeve block 32 is indicated on the inside of its wall, which extends up to the sliding surface 7 in contact with the closure plate 6 extends. This in turn provides a simple design for the tight connection of the vessel to the closure plate 6.
  • the sliding closure according to the invention has the advantage over conventional ones with a fixed and a movable closure plate that it contains fewer components and is therefore very easy to maintain.
  • the embodiment described relates to a sliding closure which is used for pouring off slag.
  • the inventive can also easily be used for pouring off molten metal,
  • the sleeve block, the closure plate and / or the pouring sleeve could in principle also be made of a refractory material.
  • the sleeve block could also be equipped with an insert on its sliding surface which is in contact with the closure plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

L'invention concerne une fermeture coulissante (10) qui est destinée à un récipient métallurgique comprenant un trou de coulée (1) destiné à l'évacuation de la masse métallique fondue ou du laitier, ladite fermeture coulissante étant munie d'un boîtier coulissant (3) qui peut être fixé au récipient (2) et d'une plaque de fermeture (6) qui peut se déplacer en son sein pour ouvrir et fermer le trou de coulée (1). En outre, la fermeture coulissante (10) ne comprend que cette plaque de fermeture mobile (6), sans plaque de fermeture fixe, qui peut être déplacée directement sur une surface de glissement (7), s'étendant autour du trou de coulée, de préférence d'un bloc enveloppe (9) dans le récipient (2) et pouvant être pressée par des éléments de précontrainte. Ainsi, cette fermeture coulissante (10) fournit une structure de construction plus simple et facile à manipuler.
EP20821211.8A 2020-01-15 2020-12-11 Fermeture coulissante de récipient métallurgique Pending EP4090482A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20151906.3A EP3851225A1 (fr) 2020-01-15 2020-01-15 Fermeture coulissante pour une cuve métallurgique
PCT/EP2020/085749 WO2021144088A1 (fr) 2020-01-15 2020-12-11 Fermeture coulissante de récipient métallurgique

Publications (1)

Publication Number Publication Date
EP4090482A1 true EP4090482A1 (fr) 2022-11-23

Family

ID=69172654

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20151906.3A Withdrawn EP3851225A1 (fr) 2020-01-15 2020-01-15 Fermeture coulissante pour une cuve métallurgique
EP20821211.8A Pending EP4090482A1 (fr) 2020-01-15 2020-12-11 Fermeture coulissante de récipient métallurgique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20151906.3A Withdrawn EP3851225A1 (fr) 2020-01-15 2020-01-15 Fermeture coulissante pour une cuve métallurgique

Country Status (10)

Country Link
US (1) US11969785B2 (fr)
EP (2) EP3851225A1 (fr)
JP (1) JP2023509864A (fr)
CN (1) CN114929411A (fr)
AU (1) AU2020422154A1 (fr)
BR (1) BR112022013461A2 (fr)
CA (1) CA3163641A1 (fr)
CL (1) CL2022001597A1 (fr)
WO (1) WO2021144088A1 (fr)
ZA (1) ZA202206897B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3851225A1 (fr) 2020-01-15 2021-07-21 Refractory Intellectual Property GmbH & Co. KG Fermeture coulissante pour une cuve métallurgique

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU72865A1 (fr) * 1975-06-30 1977-03-07
WO1988001211A1 (fr) * 1986-08-20 1988-02-25 Stopinc Aktiengesellschaft Fermeture coulissante sur le bec de coulee d'une cuve contenant un bain de fusion
CH673097A5 (en) * 1986-08-20 1990-02-15 Stopinc Ag Metallurgical vessel sliding closure
CH680501A5 (fr) * 1989-12-06 1992-09-15 Stopinc Ag
DE4006894A1 (de) * 1990-03-05 1991-09-12 Cerafer Sarl Schieberverschluss fuer metallurgische gefaesse, insbesondere giesspfannen
CA2242501C (fr) * 1997-07-16 2009-06-16 Werner Keller Robinet-vanne a lunette pour un recipient contenant du metal en fusion
CN2331459Y (zh) * 1998-08-26 1999-08-04 邯郸市正泰冶金技术开发有限公司 钢包滑动水口装置
CN1886217A (zh) 2003-11-28 2006-12-27 斯托品克股份公司 用于促动安装在容纳熔融金属的容器上的滑盖的装置
ATE509720T1 (de) 2007-07-16 2011-06-15 Stopinc Ag Schiebeverschluss für ein metallschmelze enthaltendes gefäss
CH699511A2 (de) 2008-09-05 2010-03-15 Stopinc Ag Kupfer-Anodenofen mit Schiebeverschluss.
CH702467B1 (de) 2009-12-21 2021-07-15 Stopinc Ag Schiebeverschluss für einen metallurgischen Behälter.
DE102012209504A1 (de) * 2012-06-05 2013-12-05 Sms Siemag Ag Verfahren zum Öffnen und Schließen einer Abstichöffnung eines metallurgischen Schmelzgefäßes und metallurgisches Schmelzgefäß
CN103386480B (zh) * 2013-07-25 2015-06-17 马鞍山利尔开元新材料有限公司 一种钢水包滑动水口机构
AT514848B1 (de) * 2013-08-27 2016-06-15 Primetals Technologies Austria GmbH Automatisiert montierbarer Pfannenschieberzylinder
PL3175939T3 (pl) 2015-12-01 2021-04-06 Refractory Intellectual Property Gmbh & Co. Kg Zamknięcie zasuwowe na wylewie naczynia metalurgicznego
EP3326735B1 (fr) 2016-11-29 2020-07-22 Refractory Intellectual Property GmbH & Co. KG Procédé et dispositif de détection de dimensions dans le bec verseur d'un récipient métallurgique
KR101979061B1 (ko) * 2015-12-02 2019-05-15 흥용산업 주식회사 비상 안전 잠금기능을 구비한 래들의 슬라이드게이트 작동장치
EP3587002B1 (fr) * 2018-06-26 2020-12-16 Refractory Intellectual Property GmbH & Co. KG Fermeture coulissante pour un récipient métallurgique
EP3851225A1 (fr) 2020-01-15 2021-07-21 Refractory Intellectual Property GmbH & Co. KG Fermeture coulissante pour une cuve métallurgique

Also Published As

Publication number Publication date
CN114929411A (zh) 2022-08-19
EP3851225A1 (fr) 2021-07-21
AU2020422154A1 (en) 2022-06-23
US20230042291A1 (en) 2023-02-09
US11969785B2 (en) 2024-04-30
CL2022001597A1 (es) 2023-02-24
JP2023509864A (ja) 2023-03-10
WO2021144088A1 (fr) 2021-07-22
BR112022013461A2 (pt) 2022-09-13
ZA202206897B (en) 2023-11-29
CA3163641A1 (fr) 2021-07-22

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