EP3019432B1 - Vorrichtung zum anheben und wieder absetzen einer pfanne, anlage mit einer solchen vorrichtung und verfahren - Google Patents

Vorrichtung zum anheben und wieder absetzen einer pfanne, anlage mit einer solchen vorrichtung und verfahren Download PDF

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Publication number
EP3019432B1
EP3019432B1 EP14736683.5A EP14736683A EP3019432B1 EP 3019432 B1 EP3019432 B1 EP 3019432B1 EP 14736683 A EP14736683 A EP 14736683A EP 3019432 B1 EP3019432 B1 EP 3019432B1
Authority
EP
European Patent Office
Prior art keywords
handling device
struts
ladle
elements
metal
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.)
Active
Application number
EP14736683.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3019432A1 (de
Inventor
Andreas Harter
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
Primetals Technologies Austria GmbH
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Publication date
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Publication of EP3019432A1 publication Critical patent/EP3019432A1/de
Application granted granted Critical
Publication of EP3019432B1 publication Critical patent/EP3019432B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
    • B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
    • B66C17/10—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes for transporting ladles
    • 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
    • B22D41/12—Travelling ladles or similar containers; Cars for ladles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/46—Combinations of several jacks with means for interrelating lifting or lowering movements
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum

Definitions

  • the invention relates to a device for lifting and resetting a pan for the treatment of liquid metal in the pan by means of a treatment device. Furthermore, the invention relates to a plant for the treatment of liquid metal, in particular a plant for degassing of liquid metal, such as a Ruhrstahl-Heraeus plant (RH plant), with such a device. The invention further relates to a method for the treatment of liquid metal in a pan by means of a treatment device and a method for changing a treatment device of such a system.
  • a known treatment method is, for example, the degassing of liquid metal to remove residues of oxygen and / or other gases from the molten metal.
  • This process is usually carried out in an RH plant (Ruhrstahl-Heraeus plant).
  • the liquid metal in a so-called ladle (hereinafter referred to only as a pan) positioned below a treatment device.
  • the treatment device for example a treatment vessel with an evacuatable interior space, has at least one inlet opening on its underside, as well as an outlet opening as a rule. For the treatment of the liquid metal in the pan this is introduced through the inlet opening into the interior, in particular sucked.
  • the pan is usually lifted by a device, so that the inlet opening and optionally the outlet opening dipping into the liquid metal and during the treatment, no air can penetrate into the interior.
  • the metal is treated, in particular degassed, and flows after the treatment process back to the pan. The pan is then lowered back down with the device.
  • the WO 2012000218 A discloses a ladle lifting system comprising a frame structure raised by means of hydraulic cylinders.
  • the frame construction, as well as the filled with liquid metal pan itself, has a high weight and requires correspondingly powerful designed lifting cylinder.
  • the object of the invention is to provide a flexible and inexpensive device and a method suitable for lifting a pan. It is another object of the invention to provide an easy-to-maintain system comprising such a device.
  • the device according to the invention has the advantage that in comparison to known devices, the weight to be lifted is significantly reduced and therefore smaller-sized positioning elements with reduced energy requirements can be used. While in the prior art often heavy and inflexible frame structures are used as part of the device, light and independently movable crossbars are used here, the themselves and their positioning elements can be independently maintained or replaced.
  • the substrate can be formed by a foundation, a supporting structure, a hall floor, etc.
  • each crossbar is guided in a vertical guide rail.
  • swinging or oscillation of the crossbar in the horizontal direction is reliably prevented. Damage to the connected with a cross bar at least one positioning element is reliably avoided. It is particularly preferred to guide both ends of each crossbar in each case a guide rail.
  • the respective guide rail has in particular a longitudinal axis which runs parallel to the longitudinal axes of the metal struts.
  • the respective guide rail is formed integrally with a metal strut.
  • a metal strut may have an engagement groove in which one end of the crossbar is guided.
  • the guide rail can be mounted spaced from a metal strut or fixed to a cross strut or ground without connection to a metal strut.
  • this comprises four metal struts. These are, seen in plan view, arranged in particular at the vertices of a rectangle. But also a device with three metal struts has been proven, the metal struts are then seen in plan view arranged at the vertices of an isosceles or equilateral triangle.
  • Only one positioning element or several positioning elements can be provided per crossbar. In particular, however, two positioning elements are provided. This allows mutual protection of the positioning elements in case of failure or failure of one of the positioning elements, wherein the transverse bar attached thereto is secured against an uncontrolled vertical movement.
  • the crossbars each have at least one, possibly movable, treatment device receiving element, wherein the treatment device with the aid of the treatment device receiving elements is receivable.
  • the treatment device receiving elements are used when maintenance or replacement of the treatment device is required. Further details on the operation of the treatment device receiving elements follow below.
  • the positioning element for moving a crossbar and / or the further positioning element for moving a treatment device receiving element is preferably designed as a hydraulic cylinder.
  • the positioning element for moving a crossbar may alternatively also be formed by at least one cable pull system.
  • the object of the invention is further achieved by a plant for the treatment of liquid metal in a pan, comprising a device according to the invention and a treatment device, wherein the treatment device is releasably secured to the metal struts and / or the transverse struts of the device.
  • the system according to the invention has the above-mentioned advantages of the device and optionally offers a fast and cost-effective possibility for changing the treatment device.
  • the treatment device is fastened with fastening means to the metal struts and / or cross struts and to other parts of the system, which can be activated and released in particular automatically by means of a remote control.
  • fastening means to the metal struts and / or cross struts and to other parts of the system, which can be activated and released in particular automatically by means of a remote control.
  • the system preferably further comprises a transport system for transporting the pan in a transport device, in particular a trolley, to the treatment device.
  • a transport device in the form of a trolley, a rail system is generally required, on which the trolley moves.
  • a transport device in the form of a trolley
  • an autonomous vehicle that transports the pan under the treatment facility.
  • the system is one in which the treatment device is set up for degassing the liquid metal.
  • the plant is an RH plant.
  • the treatment device in this case has an evacuatable interior, which is connected to at least one system part comprising at least one vacuum pump.
  • the connection is realized by one or more pipes which connect the interior with the at least one vacuum pump.
  • a method for the treatment of liquid metal in a pan by means of a treatment device has proven to be advantageous, wherein the pan by means of the inventive Device is raised so far that the liquid metal in the pan by means of the treatment device is treatable.
  • the treatment device has an inlet opening and an outlet opening, wherein the pan is raised so far that the inlet opening and the outlet opening are immersed in the liquid metal.
  • the method according to the invention provides a fast and cost-effective possibility for changing the treatment device. While conventional plants with high personnel and time must be maintained, the use of a device according to the invention in a system here offers significant advantages.
  • the treatment device receiving elements are optionally designed to be movable. They are then preferably moved and positioned by means of further positioning elements.
  • the treatment device For the method for changing the treatment device, it has proved to be particularly favorable when the treatment device is fastened to the metal struts and / or cross struts and other parts of the system with fasteners and, in particular automatically, activated and released by means of a remote control. This allows a particularly fast coupling and uncoupling of the treatment device during maintenance.
  • FIG. 1 schematically shows a device 1 for lifting and resetting a pan 9 for the treatment of liquid metal 8 in the pan 9 in the side view (see also FIGS. 2 and 3 to pan 9 and liquid metal 8).
  • the device 1 comprises four metal struts 2, only two of which are visible here.
  • the metal struts 2 are interconnected by transverse struts 2a.
  • two transverse bars 5 are present, which are connected by means of positioning elements 4 in the form of hydraulic cylinders with the transverse struts 2a.
  • Pro crossbar 5 two positioning elements 4 are provided, which are adapted to move the associated crossbar 5 in the z-direction or opposite thereto.
  • Each crossbar 5 is connected to a pan receiving element 7, by means of which the pan 9 is receivable.
  • Per pan receiving element 7 is a positioning means 4 'for aligning a position of the respective pan receiving element 7 is present.
  • On the metal struts 2 guide rails 2b are mounted, on which the two ends of each cross
  • FIG. 2 shows a system 100 with a device 1 similar FIG. 1 in the side view. Same reference numerals as in FIG. 1 identify similar elements.
  • the metal struts 2 of the device 1 are fastened to a substrate 20.
  • a treatment device 3 is arranged and fastened by means of fastening means 15.
  • plant parts 22 can be seen, which establish a connection between the treatment device 3 and a vacuum pump, not shown here, for evacuating the interior 3a of the treatment device 3.
  • the pan 9 has two gripping elements 11, which are received by the pan receiving elements 7 in order to raise the pan 9 with it.
  • the pan 9 is located on a trolley 17 and was transported with the help of the treatment device 3.
  • FIG. 3 shows the system 100 according to FIG. 2 in longitudinal section, the pan 9 but is shown in the raised state. Same reference numerals as in FIG. 2 identify similar elements.
  • the treatment device 3 has an inlet opening 13 and an outlet opening 13 '(see FIG FIG. 4 ) immersed in the liquid metal 8.
  • the liquid metal 8 is sucked after starting an evacuation of the interior 3a via the inlet opening 13 into the interior 3a, there degassed and flows through the outlet opening 13 'in the pan 9 back.
  • FIG. 4 shows the system 100 according to FIG. 2 in the front view. Same reference numerals as in FIG. 2 identify similar elements.
  • treatment device receiving elements 21 for receiving the treatment device 3 in the case of maintenance recognizable.
  • the treatment device receiving elements 21 are here rigidly fixed to the two crossbars 5, but may alternatively be designed to be movable and moved and not shown here further positioning elements and positioned.
  • the treatment device 3 has projections 14, on which the treatment device receiving elements 21 engage in raising the crossbar 5 and cause a weight relief in the region of the fastening means 15, so that they can be solved in a simple manner.
  • FIG. 5 shows the system 100 according to FIG. 4 with raised pan 9. Same reference numerals as in FIG. 4 identify similar elements.
  • the pan 9 is raised and moved in the direction of treatment device 3 until it dips into the liquid metal 8 (see FIG. 3 ).
  • the crossbars 5 run at its two ends in the guide rails 2b.
  • FIG. 6 shows a section FIG. 5 in the area of the transom 5 for a better overview in three-dimensional representation. Same reference numerals as in FIG. 5 identify similar elements.
  • FIG. 7 shows the system according to FIG. 4 in maintenance mode. Same reference numerals as in FIG. 4 identify similar elements.
  • the crossbars 5 are moved so far upwards by the positioning elements 4 that the treatment device receiving elements 21 couple to the projections 14 of the treatment device 3 and the fastening elements 15 are relieved of the weight of the treatment device 3.
  • a trolley 17 with a receiving element 17 'for receiving the treatment device 3 is arranged below the treatment device 3. In this position, the fastening means 15 are released. The fastening means 15 between the other system parts 22 and the treatment device 3 is solved.
  • FIG. 8 shows the system according to FIG. 7 in section VIII-VIII. Same reference numerals as in FIG. 7 identify similar elements. Two of the fastening means 15 are already solved by the treatment device 3 and two are not yet shown solved.
  • FIG. 9 shows the system according to FIG. 7 with on the receiving element 17 'lowered treatment device 3.
  • the same reference numerals as in FIG. 7 identify similar elements.
  • the trolley 17 including the receiving element 17 'and the treatment device can now be removed.
  • another - possibly new or reconditioned - treatment device is transported to another trolley with receiving element.
  • the further treatment device is received by means of the treatment device receiving elements 21, lifted and fixed via the fastening means 15.
  • the empty trolley including receiving element is transported away.
  • the system can be used again for the treatment of liquid metal.
  • FIGS. 1 to 9 show only examples of how the treatment device, the treatment device receiving elements, the pan receiving elements, the guide rails, the positioning elements, etc. may be formed. However, with the knowledge of the present invention, a person skilled in the art will readily be able to discover a multitude of further possibilities as to how a device according to the invention or a system according to the invention can be formed without having to be inventive.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Metallurgy (AREA)
  • Structural Engineering (AREA)
  • Geology (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP14736683.5A 2013-07-12 2014-06-27 Vorrichtung zum anheben und wieder absetzen einer pfanne, anlage mit einer solchen vorrichtung und verfahren Active EP3019432B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013213718.4A DE102013213718B3 (de) 2013-07-12 2013-07-12 Vorrichtung zum Anheben und wieder Absetzen einer Pfanne, Anlage mit einer solchen Vorrichtung und Verfahren
PCT/EP2014/063639 WO2015003925A1 (de) 2013-07-12 2014-06-27 Vorrichtung zum anheben und wieder absetzen einer pfanne, anlage mit einer solchen vorrichtung und verfahren

Publications (2)

Publication Number Publication Date
EP3019432A1 EP3019432A1 (de) 2016-05-18
EP3019432B1 true EP3019432B1 (de) 2017-08-09

Family

ID=51162728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14736683.5A Active EP3019432B1 (de) 2013-07-12 2014-06-27 Vorrichtung zum anheben und wieder absetzen einer pfanne, anlage mit einer solchen vorrichtung und verfahren

Country Status (7)

Country Link
EP (1) EP3019432B1 (pt)
BR (1) BR112016000176B1 (pt)
DE (1) DE102013213718B3 (pt)
ES (1) ES2646324T3 (pt)
MX (1) MX365901B (pt)
RU (1) RU2685620C2 (pt)
WO (1) WO2015003925A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014224649B3 (de) * 2014-12-02 2016-03-03 Primetals Technologies Austria GmbH Hubsystem für eine metallurgische Anlage, metallurgische Anlage und Verfahren zum vertikalen Versetzen einer Komponente einer Gefäßeinheit
EP3163240B1 (de) * 2015-10-27 2018-07-11 Primetals Technologies Germany GmbH Pfannenhubvorrichtung und verfahren zum vertikalen versetzen einer metallbadpfanne
EP3566795A1 (de) 2018-05-07 2019-11-13 Primetals Technologies Germany GmbH Hubvorrichtung für eine metallurgische pfanne und behandlungsvorrichtung für flüssiges metall
CN110076331A (zh) * 2019-06-10 2019-08-02 成渝钒钛科技有限公司 一种钒钛铁水转运一罐制技术

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
JPS5148728A (en) * 1974-10-07 1976-04-27 Nippon Steel Corp Yokino taikaraininguseikeisochi
SU1778195A1 (ru) * 1990-05-21 1992-11-30 Lipetskij Polt Inst Уctahobka пotoчhoгo bakууmиpobahия ctaли
RU2212454C1 (ru) * 2002-09-25 2003-09-20 Шатохин Игорь Михайлович Способ вакуумной обработки расплава металла и устройство для его осуществления
WO2011018920A1 (ja) * 2010-06-17 2011-02-17 スチールプランテック株式会社 赤熱コークス受骸搬送装置
CN201694756U (zh) * 2010-07-01 2011-01-05 宝钢工程技术集团有限公司 液压缸顶升的钢包提升装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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Also Published As

Publication number Publication date
BR112016000176A2 (pt) 2017-07-25
WO2015003925A1 (de) 2015-01-15
MX2016000248A (es) 2016-04-20
BR112016000176B1 (pt) 2022-03-15
RU2685620C2 (ru) 2019-04-22
ES2646324T3 (es) 2017-12-13
RU2016104507A (ru) 2017-08-16
MX365901B (es) 2019-06-19
DE102013213718B3 (de) 2014-10-30
EP3019432A1 (de) 2016-05-18
RU2016104507A3 (pt) 2018-09-03

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