EP0693339A2 - Vanne rotative pour conteneur métallurgique - Google Patents

Vanne rotative pour conteneur métallurgique Download PDF

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Publication number
EP0693339A2
EP0693339A2 EP95250176A EP95250176A EP0693339A2 EP 0693339 A2 EP0693339 A2 EP 0693339A2 EP 95250176 A EP95250176 A EP 95250176A EP 95250176 A EP95250176 A EP 95250176A EP 0693339 A2 EP0693339 A2 EP 0693339A2
Authority
EP
European Patent Office
Prior art keywords
twist lock
lock according
pouring
pouring part
outlet
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Withdrawn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
EP95250176A
Other languages
German (de)
English (en)
Other versions
EP0693339A3 (fr
Inventor
Ralf Schneider
Wolfram Jung
Hans-Joachim Paris
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.)
SMS Siemag AG
Original Assignee
Mannesmann AG
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
Priority claimed from DE19525917A external-priority patent/DE19525917A1/de
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0693339A2 publication Critical patent/EP0693339A2/fr
Publication of EP0693339A3 publication Critical patent/EP0693339A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B22D41/26—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 rotatively movable plate

Definitions

  • the invention relates to a rotary closure for the outlet opening in the bottom of a metallurgical vessel.
  • a twist lock which has a fixed outlet arranged in the bottom of the metallurgical vessel, in which an outlet sleeve with an inclined pouring channel is arranged.
  • a spout is arranged to be rotatable about a vertical axis in relation to the stationary outlet stone.
  • a sleeve is also inserted in this spout, the shape of which is mirror-inverted to the outlet sleeve.
  • the outlet sleeve and the sleeve of the spout touch on their mutually facing flat sides, i.e. in the area of their flat sealing surfaces.
  • the mouths of the pouring channel of the outlet sleeve and the sleeve of the infusion are more or less covered to achieve different open positions for regulating the melt outlet from the metallurgical vessel, or can be kept completely offset from one another (closed position).
  • the outlet stone, the two sleeves and the spout are made of common refractory material.
  • the twist lock is rotated by a motor (e.g. electrically) via a gear.
  • the object of the invention is to develop a rotary closure of the generic type in such a way that the access of gases reacting with the melt is reliably prevented with as little effort as possible.
  • the closure plates 3, 4 are not made of ordinary refractory material, but, for example, from a high-strength refractory material with a hardness of at least 2000 HV. It is essential that this material is not only sufficiently temperature-stable with regard to the expected operating temperature depending on the metal melt, but also has a high abrasion resistance.
  • the pouring part 2 can be rotated together with the lower closure plate 4 with respect to the fixed outlet stone 1 and its upper closure plate 3.
  • the melt can flow out of the metallurgical vessel (not shown) through the two vertically downward pouring channels 7, 8 through the aligned through openings 9a, 9b and 10a, 10b in the closure plates 3, 4 and through the pouring channel 6 of the pouring part 2, for example leak into a mold, not shown.
  • the sealing surface 17 on the two closure plates 3, 4 is ground smooth. It is also in at least one of the two Closure plates 3, 4 an annular seal 5 made of a temperature-stable (up to the melt temperature) and elastically deformable sealing material (for steel melts, for example, made of graphite) arranged under the respective conditions of use.Also, a positive effect on the tightness is that State of the art only one, but two pouring channels 7, 8 are arranged, which are diametrically opposed and parallel to each other. This results in a significantly better heat distribution in the outlet stone 1 and its closure plate 3, which drastically reduces the problem of leakage due to different thermal expansions.
  • pouring channels for example a total of 3
  • the pouring channels should be arranged evenly over the cross section of the outlet stone.
  • the ring seal 5 can, in many cases, ensure sufficient tightness even with a single pouring channel.
  • several concentric ring seals can also be provided.
  • the shielding of the melt from the entry of oxygen is further improved by another circumstance. This can be seen in the dimensioning of the pouring channels 7, 8 in relation to the pouring channel 6.
  • the total cross-sectional area A of the pouring channels 7, 8 in the outlet stone 1 should be chosen to be larger than the cross-sectional area B of the pouring channel 6 in the lower pouring part.
  • the rotary lock shown in Fig. 1 shields the melt flow so well from the entry of oxidizing gases that the use of an inert gas curtain is completely unnecessary. This considerably reduces the operating costs.
  • the outlet block 1 since the pouring channels can be arranged vertically, ie axially parallel to the axis of rotation.
  • the two closure plates 3, 4 are largely identical in shape and differ only in the receiving groove for the ring seal 5.
  • the twist lock according to the invention is characterized by a comparatively long service life. It also has the advantage that it requires very little space.
  • the twist lock in Fig. 2 is intended for use with rectangular mold cross-sections (e.g. in a continuous slab caster).
  • the basic structure and the mode of operation largely correspond to that in FIG. 1, so that the same reference numerals have been used, which need not be explained again. Therefore, only the differences are dealt with in detail.
  • the pouring part 2 is shaped differently in its lower part and, instead of a coaxial front outlet opening, has two lateral outlet openings 6a, 6b, which in use point in the width direction of the slab format. This position should not be changed when the twist lock is operated. For this reason, the function of the lower closure plate 4 from FIG. 1 was divided between the lower closure plate 4a and the intermediate plate 11, which is preferably also made of high-strength and abrasion-resistant refractory material and takes over the closure function, while the closure plate 4a performs the sealing function towards the pouring part 2 .
  • the contact surfaces between the components 3, 4a and 11 are ground flat and 11 arrangements of ring seals 5 are provided on both sides of the intermediate plate.
  • the passage openings of the intermediate plate 11 corresponding to the pouring channels 7, 8 are designated 12a, 12b.
  • the receiving grooves for the ring seals 5 can also both be provided in the intermediate plate 11, so that a completely identical design for the closure plates 3, 4a would be possible.
  • a large central opening could also be provided in the lower closure plate 4a, which at least completely covers the passage openings 10a, 10b shown in FIG. 1, so that the closure plate can be designed in a particularly simple manner, overall approximately in the form of a ring 4a would result. This is possible because this component no longer has the function of regulating the flow rate.
  • This design of the twist lock enables the pouring part 2 to be held in a rotationally fixed manner as well as the outlet stone 1, since the closing action is effected solely by rotating the intermediate plate 11.
  • This is held and driven from below by a rotating body 13 designed as a gear wheel.
  • the rotating body 13 forms with a drive pinion 14 (preferably 45 ° toothed toothed drive) the gear for actuating the rotary lock.
  • drive pinion 14 preferably 45 ° toothed toothed drive
  • cooling grooves 16 are provided, which allow effective cooling of the transmission by passing a cooling medium through it.
  • the pouring part 2 with the lower closure plate 4a is by a based on, for example, disc springs mechanically or pneumatically operated pressure system 15 pressed up onto the sealing seat.
  • Outlet stone 1 (refractory material)
  • Pouring part 2 (refractory material) upper closure plate 3 (high-strength refractory material) lower closure plate 4 (high-strength refractory material) annular seal 5 (graphite)
  • Pouring channels 6, 7, 8 Through openings 9a, 9b, 10a, 10b
  • Intermediate plate 11 (high-strength refractory material) Through openings 12a, 12b
  • Rotary body 13 Drive pinion 14 Pressure system Cooling grooves 16 Sealing surfaces 17

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Sliding Valves (AREA)
  • Furnace Charging Or Discharging (AREA)
EP95250176A 1994-07-22 1995-07-19 Vanne rotative pour conteneur métallurgique Withdrawn EP0693339A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4426720 1994-07-22
DE4426720 1994-07-22
DE19525917 1995-07-04
DE19525917A DE19525917A1 (de) 1994-07-22 1995-07-04 Drehverschluß für ein metallurgisches Gefäß

Publications (2)

Publication Number Publication Date
EP0693339A2 true EP0693339A2 (fr) 1996-01-24
EP0693339A3 EP0693339A3 (fr) 1998-11-18

Family

ID=25938753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95250176A Withdrawn EP0693339A3 (fr) 1994-07-22 1995-07-19 Vanne rotative pour conteneur métallurgique

Country Status (4)

Country Link
US (1) US5660294A (fr)
EP (1) EP0693339A3 (fr)
JP (1) JPH08168872A (fr)
CN (1) CN1062794C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008003995A1 (fr) 2006-07-05 2008-01-10 Stephen David Mills Buse réfractaire

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6190619B1 (en) * 1997-06-11 2001-02-20 Argonaut Technologies, Inc. Systems and methods for parallel synthesis of compounds
CN108031804A (zh) * 2018-01-23 2018-05-15 广西欧迪姆重工科技有限公司 一种回转连续生产合金的分流器及其设备
CN107983922A (zh) * 2018-01-23 2018-05-04 广西欧迪姆重工科技有限公司 一种合金铸造装置及其回转连续生产设备
CN108057856A (zh) * 2018-01-23 2018-05-22 广西欧迪姆重工科技有限公司 一种回转连续生产合金的多流口配流器及其设备
CN108044089A (zh) * 2018-01-23 2018-05-18 广西欧迪姆重工科技有限公司 一种回转连续生产合金的配流器及其设备
CN112387961A (zh) * 2019-08-17 2021-02-23 宜兴市耐火材料有限公司 一种双孔双面连滑滑板

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231692C1 (de) 1992-09-22 1994-03-24 Dolomitwerke Gmbh Drehverschluß für metallurgische Gefäße

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961228A (en) * 1957-12-13 1960-11-22 Diamond Alkali Co Crucible for analytic purposes having a rotary cover valving arrangement
JPS5127409B2 (fr) * 1973-02-12 1976-08-12
US3855997A (en) * 1973-07-11 1974-12-24 Cinco Medical Health Supply Co Sterile specimen trap
GB1515922A (en) * 1975-06-04 1978-06-28 Danieli Off Mecc Bottom pouring vessel with rotary sliding gate valve for molten metal
US4538653A (en) * 1984-12-04 1985-09-03 Genoa Group Inc. Closure and valve for liquid container
JPH01143757A (ja) * 1986-12-20 1989-06-06 Didier Werke Ag 冶金容器用の回転摺動閉鎖装置およびこのような回転摺動閉鎖装置用の回転体
US4993573A (en) * 1989-08-14 1991-02-19 Kinetek Systems, Inc. Bottle closure
US5299608A (en) * 1992-03-16 1994-04-05 The Hoover Company Sealed coupling for a fluid container

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231692C1 (de) 1992-09-22 1994-03-24 Dolomitwerke Gmbh Drehverschluß für metallurgische Gefäße

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008003995A1 (fr) 2006-07-05 2008-01-10 Stephen David Mills Buse réfractaire
US8545751B2 (en) 2006-07-05 2013-10-01 Stephen David Mills Refractory nozzle

Also Published As

Publication number Publication date
CN1121853A (zh) 1996-05-08
US5660294A (en) 1997-08-26
CN1062794C (zh) 2001-03-07
EP0693339A3 (fr) 1998-11-18
JPH08168872A (ja) 1996-07-02

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