EP0297083A2 - Poste de démasselottage pour poches - Google Patents

Poste de démasselottage pour poches Download PDF

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Publication number
EP0297083A2
EP0297083A2 EP88890155A EP88890155A EP0297083A2 EP 0297083 A2 EP0297083 A2 EP 0297083A2 EP 88890155 A EP88890155 A EP 88890155A EP 88890155 A EP88890155 A EP 88890155A EP 0297083 A2 EP0297083 A2 EP 0297083A2
Authority
EP
European Patent Office
Prior art keywords
housing
scraper
ladle
stand according
pan
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
EP88890155A
Other languages
German (de)
English (en)
Other versions
EP0297083A3 (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 EP0297083A2 publication Critical patent/EP0297083A2/fr
Publication of EP0297083A3 publication Critical patent/EP0297083A3/fr
Ceased 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
    • B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
    • 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
    • C21C5/38—Removal of waste gases or dust
    • C21C5/40—Offtakes or separating apparatus for converter waste gases or dust

Definitions

  • the invention relates to a ladle scraper stand, with a tilting device receiving a pan, a slag vessel and a scraper slide which covers the melt surface of the melt in the pan placed on the tilting device.
  • a ladle scraper of this type is known from DE-OS 2 250 695.
  • the ladle arranged above the slag vessel is inclined to remove the slag and the slag floating on the molten metal is moved over the edge of the ladle by means of the deslagging slide, as a result of which the slag flows into the slag vessel. This process leads to a strong development of dust and flue gas.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object to create a ladle scraper of the type described in the introduction, in which all gas and dust emissions arising during the deslagging process are generated with only a low suction power can be detected.
  • both the tilting device and the deslagging slide and the slag vessel are surrounded by a housing into which a suction line opens, and that the housing has at least one closable opening for inserting and removing the pan and the slag vessel.
  • the scraper slide is advantageously connected by means of a cantilever to an actuating device arranged outside the housing, the cantilever projecting through an opening of the housing into its interior.
  • the housing is expediently formed by a stationary lower part and an upper part which can be removed from the lower part with the release of the tilting device, advantageously the removable upper part having an approximately horizontally directed ceiling part and one extending from the ceiling part on one Has side downwardly extending side wall part.
  • a preferred, particularly compact embodiment is characterized in that the upper part can be moved along horizontally arranged rails, one rail for supporting the ceiling part near the free edge of the ceiling part and another rail for supporting the side wall part near the lower edge of the side wall part .
  • the fixed lower part of the housing advantageously has an opening for the actuating device of the deslagging slide.
  • the removable upper part is preferably provided with a suction opening, such as a suction nozzle, which connects to a stationary suction line when the housing is closed, as a result of which the housing is automatically connected to the suction line in the closed state.
  • a suction opening such as a suction nozzle
  • the removable upper part is expediently provided with a sampling and / or measuring probe device, so that the sampling and / or measuring probe device is (are) automatically brought into the correct position when the housing is closed, without the housing having to be opened for this purpose.
  • an optical remote transmission is advantageously provided to observe the deslagging process.
  • the stationary lower part of the housing is provided with a closable opening through which the slag vessel can be moved, and the actuating device for the scraper slide is also advantageously arranged within the housing.
  • FIG. 1 shows a side view of a ladle scraper
  • FIG. 2 shows a section along the line II-II of FIG. 1.
  • FIG. 3 shows a top view of the ladle scraper stand with the housing open.
  • FIG. 4 illustrates a further embodiment in a representation analogous to FIG. 2.
  • a ladle deslagging stand is shown with a tilting device 3 arranged on hut floor 1 and receiving a ladle 2.
  • a slag container 5 is positioned on a carriage 4 which can be moved on the hut floor 1.
  • a scraper slide 7 is provided which brushes the melt surface of the melt 6.
  • the tilting device 3, the scraper slide 7 and also the slag container 5 are surrounded by a common housing 8, which comprises a lower part 9 which is arranged in a fixed manner in the hut hallway 1 and one of the fixed lower part 9 in a direction of movement shown by an arrow 10 from position A ( 1), in which the housing is closed, has upper part 11 which can be moved into position B (see FIG. 3).
  • a common housing 8 which comprises a lower part 9 which is arranged in a fixed manner in the hut hallway 1 and one of the fixed lower part 9 in a direction of movement shown by an arrow 10 from position A ( 1), in which the housing is closed, has upper part 11 which can be moved into position B (see FIG. 3).
  • the fixed lower part 9 is formed by a vertical lower support wall 12 directed in the direction of movement of the upper part 11, a substantially higher side wall 13 opposite and parallel to the support wall 12, and end walls 14, 15 provided between the side wall 13 and the support wall 12, which are normal to the direction of movement of the upper part 11 are directed.
  • the length 16 of the side wall 13 corresponds to the dimension of the removable upper part 11 in the direction of this side wall 13, whereas the support wall 12 is extended beyond the area of the housing 8 and has approximately twice the length 17 of the side wall 13.
  • At the upper end of the support wall 12 is horizontal running rail 18 attached, which extends over the entire length 17 of the support wall 12. At least one of the two end walls 14, 15 has an opening which can be closed with a gate 19 for the supply and removal of the slag container 5.
  • a scaffold 20 is provided which is connected to the side wall 13 of the lower part 9 and extends beyond the longitudinal region of the housing 8.
  • the scaffold 20 carries a working platform 22 approximately half way up 21 of the housing 8, on the upper side of which guide rails 23 are arranged parallel to the rail 18 provided at the upper end of the support wall 12 and extend almost over the entire length 24 of the working platform 22.
  • an actuating device 25 for the scraper slide 7 carrying slide 26 is guided, which can thus be moved parallel to the direction of movement of the upper part 11 along the work platform 22.
  • the actuating device 25 is connected to the scraper slide 7 by means of a cantilever 27, the cantilever 27 projecting into the interior 29 of the housing 8 through an opening 28 provided in the side wall 13 above the work platform 22.
  • the boom 27 is arranged on the actuating device 25 so as to be movable in the direction of its longitudinal axis 30. Furthermore, the boom 27 can be pivoted about a horizontal axis 31 directed in the direction of movement of the upper part 11 and through the actuating device 25 and about a vertical axis 32 directed normal to the horizontal axis 31, as a result of which the scraper slide 7 can be moved into any desired position.
  • a replacement device 33 for the actuating device comprising the scraper slide 7, the extension arm 27 25 and slide 26 formed unit 34 slidably arranged. If the unit 34 is defective, it is removed from the area of the tilting device 3 and moved into a position C shown with a dash-dotted line, and the replacement device 33 is positioned in the area of the tilting device.
  • a longitudinal beam 36 which extends over the entire length 17 of the scaffold 20 and carries an upper platform 37 arranged approximately at the height 35 of the housing 8.
  • a rail 38 is fastened horizontally and parallel to the rail 18 provided on the support wall 12, the length of which corresponds to the rail 18 mounted on the support wall 12.
  • a control station 39 is provided on the upper stage 37 in the area of the tilting device 3.
  • the upper part 11 of the housing 8 also has a ceiling part 41 which is arranged horizontally at the level of the upper stage 37 and which is connected on one side to the side wall part 40 and with its opposite free end 42 engages over the side wall 13 of the fixed lower part 9.
  • the upper part 11 can be moved along the rails 18, 38 by means of two wheels 43, 44 arranged at the free end 42 of the ceiling part 41 and two at the lower edge of the side wall part 40, and so on. by means of drive motors 45 flanged to the axles of the wheels.
  • the upper part 11 has at its front ends normal end wall parts 46, 47 which complement the end walls 14, 15 of the fixed lower part 9 when the housing 8 is closed.
  • a suction nozzle 48 On the ceiling part 41 of the upper part 11 there is a suction nozzle 48 which, in position A of the upper part 11, that is to say with the housing 8 closed, connects to a stationary suction line 49. Furthermore, a sampling or measuring probe device 50 is arranged on the ceiling part 41, which is formed by a guide 51 rigidly attached to the ceiling part 41 and a probe 52 movably mounted on it. The guide 51 is inclined to the vertical and is supported on the ceiling part 41 by means of two legs 53.
  • the probe 52 can be moved in the axial direction from a rest position D shown with a full line into an operating position E shown with a dash-dotted line, the probe in the operating position E protruding through an opening 54 provided in the ceiling part 41 into the interior 29 of the housing 8 and with its free one Immerse the end in the pan 2 filled with melt 6.
  • a recess 55 is provided, which forms a viewing window together with the opening 28 in the side wall 13, thereby creating a field of vision limited by dash-dotted lines 56, which when closed Housing 8 enables good monitoring of the deslagging process from the control station 39.
  • the pan 2 is inserted into the tilting device 3 by means of a hut crane, not shown in detail, with the housing 8 open, which gives the crane operator a good view of the tilting device 3 and, in conjunction therewith, enables the pan 2 to be inserted easily. After closing the housing 8 the removal of the slag floating on the melt 6 with the scraper slide 7.
  • the pan 2 is pivoted by a certain amount into a position shown in broken lines so that the slag caught by the deslagging slide 7 can flow into the slag vessel 5.
  • the boom 27 is pivoted about the horizontal axis 31 according to the position of the pan 2.
  • the gas and dust emissions arising during the deslagging process can be completely eliminated by means of the fixed suction line 49, which is automatically connected to the suction nozzle 48 when the housing 8 is closed. For this purpose, only a low suction power is necessary, since suction of larger quantities of false air is avoided through the housing 8, which is closed except for the recess 55 in the ceiling part 41 and the opening 28 for the extension arm 27.
  • the slag vessel 5 is removed from the housing after opening the gate 19 in the end wall 15 of the fixed lower part 9. With the aid of the probe 52, samples can be taken from the melt bath 6 or the melt temperature can be measured. The sampling and / or measuring probe device 50 is controlled from the control center 39. After the gas and dust emissions have been completely removed, the housing 8 can be opened again by removing the upper part 11, the suction line 48 being automatically separated from the suction nozzle 49.
  • a further embodiment of the device according to the invention is shown, in which the actuating device 25 of the scraper slide 7 is arranged within the housing 8 '.
  • the suction line 49 can also be arranged in the fixed lower part 9 of the housing 8 or 8 '.
  • the housing can also have a shape other than that shown in the exemplary embodiments, depending on the operational requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
EP88890155A 1987-06-22 1988-06-16 Poste de démasselottage pour poches Ceased EP0297083A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1568/87 1987-06-22
AT0156887A AT387925B (de) 1987-06-22 1987-06-22 Pfannenabschlackstand

Publications (2)

Publication Number Publication Date
EP0297083A2 true EP0297083A2 (fr) 1988-12-28
EP0297083A3 EP0297083A3 (fr) 1990-01-03

Family

ID=3516215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88890155A Ceased EP0297083A3 (fr) 1987-06-22 1988-06-16 Poste de démasselottage pour poches

Country Status (6)

Country Link
US (1) US4865296A (fr)
EP (1) EP0297083A3 (fr)
JP (1) JPS6422465A (fr)
KR (1) KR890000192A (fr)
CN (1) CN1008427B (fr)
AT (1) AT387925B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010061022A1 (fr) * 2008-11-03 2010-06-03 Ghi Hornos Industriales, S.L. Robot d'élimination de laitier

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPP726698A0 (en) * 1998-11-23 1998-12-17 Stratigos, Andreas Improved apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross
CN101069926A (zh) * 2007-03-30 2007-11-14 沈阳铝镁设计研究院 抬包清理方法及抬包清理机组
CN101791698B (zh) * 2010-04-23 2012-12-05 杭州冠重铸机有限公司 一种钢包自动倾倒扒渣防溅系统
CN115479800B (zh) * 2022-09-27 2023-06-16 临沂利信铝业有限公司 一种铝熔炼炉加工用扒渣装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2250695A1 (de) * 1972-10-16 1974-04-25 Louise N V Sa Vorrichtung zum abschlacken von giesspfannen
DE2256269B2 (de) * 1971-11-17 1977-05-05 Hoogovens Ijmuiden B.V., Ijmuiden (Niederlande) Metallerzeugungsanlage mit einem kippbaren konverter
AT357577B (de) * 1973-08-06 1980-07-25 Voest Alpine Ag Einrichtung zum auffangen und ableiten von abgasen
GB2143757A (en) * 1983-07-21 1985-02-20 Gautschi Electro Fours Sa Apparatus for removing dross and similar waste material from the surface of molten metals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168824A (en) * 1977-11-02 1979-09-25 Pennsylvania Engineering Corporation Enclosure for metallurgical vessels
AT355071B (de) * 1978-05-24 1980-02-11 Voest Alpine Ag Konverteranlage mit einem metallurgischen gefaess
US4410166A (en) * 1981-12-10 1983-10-18 Pennsylvania Engineering Corporation Gas collector for metallurgical vessels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2256269B2 (de) * 1971-11-17 1977-05-05 Hoogovens Ijmuiden B.V., Ijmuiden (Niederlande) Metallerzeugungsanlage mit einem kippbaren konverter
DE2250695A1 (de) * 1972-10-16 1974-04-25 Louise N V Sa Vorrichtung zum abschlacken von giesspfannen
AT357577B (de) * 1973-08-06 1980-07-25 Voest Alpine Ag Einrichtung zum auffangen und ableiten von abgasen
GB2143757A (en) * 1983-07-21 1985-02-20 Gautschi Electro Fours Sa Apparatus for removing dross and similar waste material from the surface of molten metals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010061022A1 (fr) * 2008-11-03 2010-06-03 Ghi Hornos Industriales, S.L. Robot d'élimination de laitier
ES2343345A1 (es) * 2008-11-03 2010-07-28 Ghi Hornosl Industriales, S.L. Robot desecoriador.

Also Published As

Publication number Publication date
ATA156887A (de) 1988-09-15
KR890000192A (ko) 1989-03-13
AT387925B (de) 1989-04-10
JPS6422465A (en) 1989-01-25
US4865296A (en) 1989-09-12
CN1008427B (zh) 1990-06-20
CN1031954A (zh) 1989-03-29
EP0297083A3 (fr) 1990-01-03

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