EP0122844A1 - Abstichmaschine für Hochöfen durch Ausziehen der Bohrstange - Google Patents

Abstichmaschine für Hochöfen durch Ausziehen der Bohrstange Download PDF

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Publication number
EP0122844A1
EP0122844A1 EP84400663A EP84400663A EP0122844A1 EP 0122844 A1 EP0122844 A1 EP 0122844A1 EP 84400663 A EP84400663 A EP 84400663A EP 84400663 A EP84400663 A EP 84400663A EP 0122844 A1 EP0122844 A1 EP 0122844A1
Authority
EP
European Patent Office
Prior art keywords
bar
hole
frame
tapping
blast furnace
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
EP84400663A
Other languages
English (en)
French (fr)
Other versions
EP0122844B1 (de
Inventor
Bernard Marinello
Christian Zurdo
Hubert Bohr
François Glarey
Michel Gouriou
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.)
LORRAINE ET MERIDIONALE DE LAMINAGE CONTINU - SOLMER Ste
Original Assignee
LORRAINE ET MERIDIONALE DE LAMINAGE CONTINU - SOLMER Ste
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 LORRAINE ET MERIDIONALE DE LAMINAGE CONTINU - SOLMER Ste filed Critical LORRAINE ET MERIDIONALE DE LAMINAGE CONTINU - SOLMER Ste
Publication of EP0122844A1 publication Critical patent/EP0122844A1/de
Application granted granted Critical
Publication of EP0122844B1 publication Critical patent/EP0122844B1/de
Expired 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
    • C21B7/12—Opening or sealing the tap holes

Definitions

  • the invention relates to a bar extraction device.
  • the known withdrawal devices include jaws for gripping the bar.
  • the bar In order for the bar to be properly held in the jaws, it is necessary to carry out a partial prior machining thereof: this involves manual intervention by the personnel.
  • the object of the invention is to unblock by a means free from the aforementioned drawbacks.
  • the means according to the invention lies in a bar extraction device, comprising: a frame, a means of fixing the frame on a support machine movable at least substantially in the two directions of the axis of the bar, a means for wedging the bar comprising a hole with a diameter greater than that of the bar, formed in a tilting part articulated on an axis of the frame.
  • the tilting part is articulated on a horizontal axis of the frame.
  • the tilting part is suspended by gravity from a horizontal axis of the frame.
  • the tilting part has a conical front hole.
  • the tilting part comprises a rear stop cooperating with the hole for wedging the bar.
  • the device comprises a protective shield.
  • the device of the invention is particularly intended to adapt to the nose of a butcher machine.
  • Figure 1 shows the nose 1 of a conventional butcher machine, such as that marketed by the Luxembourg company Paul WURTH.
  • the nose 1 of the butcher machine comprises the cylindrical extension 2 which is connected by the conical mouth 3 to the cylindrical clay chamber 4, of diameter greater than that of the extension.
  • a vertical ear 5 on the mouth is used for handling.
  • Figure 2 shows the bottom of the blast furnace 6, the liquid iron bath 7, the extracting bar 8 oriented slightly oblique above the horizontal.
  • the bar extraction device 9 comprises a frame 10, a fixing means 11 of the frame on the nose of the capping machine, and a wedging means 12 of the bar.
  • the frame 10 essentially consists of an arm 13 provided at one end with a fork 14 which can be articulated on the ear 5 of the nose of the capper thanks to a pin.
  • the arm 13 has in the middle a hole 15 allowing the passage of a pin 16 on which the fork 17 of a collar pivots 18.
  • Three legs 19 are welded on the front of the collar 18 and allow insertion from above a rectangular push plate 20.
  • the end of the arm 13 opposite the fork 14 also carries a fork 21 allowing the passage of a pin 22 on which the wedging means 12 is articulated.
  • This comprises a plate 23 pierced with a cylindrical hole 24.
  • the plate 23 can swing freely forward, but is blocked rearward by the retainer 27.
  • the front part of the device 9 carries a protective shield 28 fixed obliquely.by triangular stays 29 on the fork 21 and only serving in the event of the machine not stopping to avoid damaging the plating of the tap hole.
  • the arm 13 carries a handling lug 30.
  • the collar 18 is mounted on the front of the capper, then the push plate 20.
  • the arm 13 is mounted, which is assembled with the capper and the collar. Finally, the plate 23 which is suspended vertically is mounted.
  • the capper is then moved back in the opposite direction indicated by arrow 32 (fig. 3).
  • the wedging piece 12 rocks and comes to wedge the bar between the lower front part of the hole 24 and the rear extension 26.
  • the slow continued recoil of the capper causes the extraction of the bar 8, and the melting of the blast furnace can flow right out of the bar.
  • the entire device is easy to handle; its weight is of the order of a hundred kilograms, and its size of 760 x 600 x 350 mm 3 in an exemplary embodiment.
  • the diameter of the hole 24 is 60 to 65mm to leave sufficient play for correct engagement of the bar.
  • the axis of the hole 24 of the part 12 is 10 mm lower than the axis of the extension 2.
  • the part 26 has been provided to better hold the bar in the hole 24. However, if one does not want to recover the bar, in order to avoid handling of a red-heated part, the part 26 can be eliminated.
  • the diameter of the hole is then 65mm, preferably 60mm, and the bar is lost: it can fall, after extraction, into the channel located near the capping machine, and disappear in the liquid iron which flows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
EP19840400663 1983-04-12 1984-04-04 Abstichmaschine für Hochöfen durch Ausziehen der Bohrstange Expired EP0122844B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8305962A FR2544332B1 (fr) 1983-04-12 1983-04-12 Dispositif de debouchage de haut-fourneau par extraction de barre
FR8305962 1983-04-12

Publications (2)

Publication Number Publication Date
EP0122844A1 true EP0122844A1 (de) 1984-10-24
EP0122844B1 EP0122844B1 (de) 1987-07-29

Family

ID=9287766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840400663 Expired EP0122844B1 (de) 1983-04-12 1984-04-04 Abstichmaschine für Hochöfen durch Ausziehen der Bohrstange

Country Status (3)

Country Link
EP (1) EP0122844B1 (de)
DE (1) DE3465113D1 (de)
FR (1) FR2544332B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589636A (en) * 1983-10-28 1986-05-20 Baeumer Albrecht Grasping device for a rod insertable into and withdrawable from the taphole of metallurgical furnaces, particularly tapping rods
DE3803625A1 (de) * 1988-02-06 1989-08-17 Dango & Dienenthal Maschbau Verfahren und vorrichtung zum oeffnen des stichlochs von oefen
US5039068A (en) * 1988-04-06 1991-08-13 Paul Wurth S.A Machine for drilling tapholes of a shaft furnace

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1546952A (fr) * 1967-06-07 1968-11-22 Gardner Denver Co Dispositif de centrage de tiges de sondes
GB1503660A (en) * 1975-08-20 1978-03-15 Victor Products Ltd Drilling machines
LU82943A1 (fr) * 1980-11-17 1981-03-26 Wurth Anciens Ets Paul Tete de guidage et de support d'une tige de percage du trou de coulee d'un four a cuve et perceuse pourvue d'une telle tete
GB2095381A (en) * 1981-03-21 1982-09-29 Dango & Dienenthal Maschbau Tap hole drilling machine
EP0064644A1 (de) * 1981-05-05 1982-11-17 Paul Wurth S.A. Führungs- und Positioniermechanismus für die Bohrstange des Abstichloches am Schachtofen und Stichlochbohrmaschine mit einem solchen Mechanismus
EP0064645A1 (de) * 1981-05-05 1982-11-17 Paul Wurth S.A. Führungs- und Positioniermechanismus für die Bohrstange des Abstichloches am Schachtofen und Stichlochbohrmaschine mit einem solchen Mechanismus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1546952A (fr) * 1967-06-07 1968-11-22 Gardner Denver Co Dispositif de centrage de tiges de sondes
GB1503660A (en) * 1975-08-20 1978-03-15 Victor Products Ltd Drilling machines
LU82943A1 (fr) * 1980-11-17 1981-03-26 Wurth Anciens Ets Paul Tete de guidage et de support d'une tige de percage du trou de coulee d'un four a cuve et perceuse pourvue d'une telle tete
GB2095381A (en) * 1981-03-21 1982-09-29 Dango & Dienenthal Maschbau Tap hole drilling machine
EP0064644A1 (de) * 1981-05-05 1982-11-17 Paul Wurth S.A. Führungs- und Positioniermechanismus für die Bohrstange des Abstichloches am Schachtofen und Stichlochbohrmaschine mit einem solchen Mechanismus
EP0064645A1 (de) * 1981-05-05 1982-11-17 Paul Wurth S.A. Führungs- und Positioniermechanismus für die Bohrstange des Abstichloches am Schachtofen und Stichlochbohrmaschine mit einem solchen Mechanismus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 1, no. 96, 30 août 1977, page 2551M77; & JP-A-52 036 854 (SAKURA KOGYO K.K.) 22-03-1977 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589636A (en) * 1983-10-28 1986-05-20 Baeumer Albrecht Grasping device for a rod insertable into and withdrawable from the taphole of metallurgical furnaces, particularly tapping rods
DE3803625A1 (de) * 1988-02-06 1989-08-17 Dango & Dienenthal Maschbau Verfahren und vorrichtung zum oeffnen des stichlochs von oefen
AU603726B2 (en) * 1988-02-06 1990-11-22 Dango & Dienenthal Maschinenbau Gmbh Process and apparatus for opening tapholes of furnaces
US5039068A (en) * 1988-04-06 1991-08-13 Paul Wurth S.A Machine for drilling tapholes of a shaft furnace

Also Published As

Publication number Publication date
FR2544332A1 (fr) 1984-10-19
EP0122844B1 (de) 1987-07-29
DE3465113D1 (en) 1987-09-03
FR2544332B1 (fr) 1985-08-09

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