EP0018347A1 - Dispositif pour la percée du trou de coulée d'un haut fourneau - Google Patents

Dispositif pour la percée du trou de coulée d'un haut fourneau Download PDF

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Publication number
EP0018347A1
EP0018347A1 EP19800890022 EP80890022A EP0018347A1 EP 0018347 A1 EP0018347 A1 EP 0018347A1 EP 19800890022 EP19800890022 EP 19800890022 EP 80890022 A EP80890022 A EP 80890022A EP 0018347 A1 EP0018347 A1 EP 0018347A1
Authority
EP
European Patent Office
Prior art keywords
piston
cylinder housing
recess
impact rod
longitudinal axis
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
EP19800890022
Other languages
German (de)
English (en)
Other versions
EP0018347B1 (fr
Inventor
Josef Huszar
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.)
Vereinigte Edelstahlwerke AG
Original Assignee
Vereinigte Edelstahlwerke 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
Application filed by Vereinigte Edelstahlwerke AG filed Critical Vereinigte Edelstahlwerke AG
Publication of EP0018347A1 publication Critical patent/EP0018347A1/fr
Application granted granted Critical
Publication of EP0018347B1 publication Critical patent/EP0018347B1/fr
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 device for coupling a beater bar to a counter-impact mechanism for parting off a blast furnace.
  • the tap hole in question can be pre-drilled to a remaining wall thickness of around 50 cm using a boring bar. Then this is replaced by a blow rod and with it a continuous tap hole is made by hitting it. The beater bar is then pulled out of the tap hole. Pig iron flows through them first and then slag from the furnace, whereupon the same begins to blow. The taphole opening is then closed with a taphole gun with taphole mass.
  • a newer, more economical method of tapping a blast furnace is carried out with a counterblow hammer as follows: 15 to 30 minutes. After closing the respective tap hole opening, a new tap hole is drilled halfway and the remaining part of the path is pierced with a baton. This remains in the blast furnace and the drilling device is removed from the tap hole channel. Then the tap hole device is pivoted in again, coupled with the beater bar and pulled out with the counterblow mechanism. The implementation of the procedure in question was previously associated with a very high risk of accident for the operator concerned.
  • the invention has for its object to avoid the disadvantages mentioned above and to provide a simple device for the safe and automatic coupling of an impact bar to a counter-impact mechanism for parting off a blast furnace.
  • This object is achieved in a device of the type mentioned in that a piston arranged in the interior of a cylinder housing and provided with a pressure medium, preferably air, is provided for coupling the impact rod.
  • the device according to the invention has the particular advantage that it allows the impact bar in question to be coupled and uncoupled safely and automatically from a control station, e.g. to be carried out with compressed air.
  • the device according to the invention can be made particularly simple in that the cylinder housing is connected to the counter-impact mechanism.
  • the beater bar is provided with a recess into which, for coupling the beater bar, a part can be pressed by the piston.
  • the device according to the invention is particularly simple in construction if the part which can be pressed into the recess of the impact rod is a wedge piece which can be displaced transversely to the geometric longitudinal axis of the piston and against which the piston can be pressed with a surface which extends obliquely to this longitudinal axis.
  • a particularly simple and expedient embodiment of the device according to the invention results from the fact that a bore running approximately parallel to the geometric longitudinal axis of the piston is provided in the cylinder housing, the wedge piece from the piston into the recess of the piston after the impact rod has been introduced into this bore Beater bar is pushable.
  • FIG. 1 shows a device for coupling a beater bar to a counter-impact mechanism for parting off a blast furnace in longitudinal section
  • FIG. 2 in plan view
  • FIG. 3 in side view in section along line a-b of FIG. 1
  • a pressure medium duct 3 leads into one end region of the interior 2 of a cylinder housing 1 connected to the counter-impact mechanism.
  • a piston 4 located in this interior 2 has a surface 5 which runs obliquely to its geometric longitudinal axis in its end region remote from the pressure medium duct 3.
  • a helical spring 8 which presses against the piston 4
  • a wedge piece 9 which is displaceable transversely to its geometric longitudinal axis and is pressed with two helical springs 10 in the direction of this surface 5 are provided. The same can be pushed by the piston 4 into a recess 13 of the beater bar 12 which is introduced into a bore 11 of the cylinder housing 1 which runs parallel to its geometric longitudinal axis.
  • the wedge piece 9 is guided laterally by the cylinder housing 2 and on the side facing away from the piston 4 by a cover 14. This is attached to the cylinder housing 1 by two hexagon screws 15, each provided with a cap nut 16 and a spring ring 17. Two dowel pins 18 located partly in the cylinder housing 1 and partly in the cover 14 ensure that this is in the correct position relative to the cylinder housing 1.
  • the piston 4 is sealed by means of an O-ring 7 located between two support rings 6.
  • the cylinder housing 1 has a cylindrical projection 19 which is inserted into an intermediate piece 20 and fastened thereon by means of a transverse wedge 21.
  • the intermediate piece 20 is attached to the counter-striking work, not shown.
  • a tube piece 22 is provided which is sealed in the intermediate piece 20 by means of an O-ring 23.
  • the impact rod 12 is automatically coupled in safely from the control station with compressed air, which in this case flows through the pipe section 22 and the pressure medium channel 3 provided in the cylinder housing 1 into one end region of the interior 2 of the cylinder housing 1 and displaces the piston 4.
  • the latter presses the wedge piece 9 into the recess 13 of the impact rod 12 inserted into the bore 11, as a result of which this is coupled to the counter-impact mechanism via the cylinder housing 1 and the intermediate piece 20.
  • the coupling thereof is carried out by venting the interior 2 of the cylinder housing 1 via the pressure medium channel 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Blast Furnaces (AREA)
EP19800890022 1979-03-02 1980-02-26 Dispositif pour la percée du trou de coulée d'un haut fourneau Expired EP0018347B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1587/79 1979-03-02
AT158779A AT361955B (de) 1979-03-02 1979-03-02 Vorrichtung fuer das ankuppeln einer schlag- stange

Publications (2)

Publication Number Publication Date
EP0018347A1 true EP0018347A1 (fr) 1980-10-29
EP0018347B1 EP0018347B1 (fr) 1983-09-28

Family

ID=3516643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800890022 Expired EP0018347B1 (fr) 1979-03-02 1980-02-26 Dispositif pour la percée du trou de coulée d'un haut fourneau

Country Status (3)

Country Link
EP (1) EP0018347B1 (fr)
AT (1) AT361955B (fr)
DE (1) DE3064999D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041942A1 (fr) * 1980-06-06 1981-12-16 Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) Procédé pour boucher et déboucher réciproquement le trou de coulée de fours métallurgiques, notamment de hauts fourneaux
FR2494414A1 (fr) * 1980-11-17 1982-05-21 Wurth Paul Sa 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
DE3241746A1 (de) * 1982-02-03 1983-08-04 Paul Wurth S.A., 1122 Luxembourg Vorrichtung zum kuppeln einer bohrstange fuer schachtofenabstichloecher mit dem arbeitswerkzeug einer bohrmaschine
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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE410549C (de) * 1921-06-06 1925-03-03 Huettenbetr Ag F Vorrichtung zum Abstechen von Hochoefen
DE437206C (de) * 1926-05-05 1926-11-16 Ag Deutsche Maschf Vorrichtung zum Abstechen von Hochoefen
GB470630A (en) * 1936-05-22 1937-08-18 Fernand Eloy An improved pneumatic hammer for piercing the tapping-holes of blast furnaces
DE1231272B (de) * 1959-04-21 1966-12-29 Dango & Dienenthal Kommanditge Verfahren und Vorrichtung zum OEffnen des Stichlochs von Schachtoefen, insbesondere von Hochoefen, durch Bohren
AT265338B (de) * 1966-06-07 1968-10-10 Voest Ag Stichlochbohrmaschine
DE1552707A1 (de) * 1966-03-02 1970-07-02 Volk Geb Knaebler Spannelement,bei welchem die Spannkraft durch ein Druckmittel erzeugt wird
US3862750A (en) * 1972-10-17 1975-01-28 Inland Steel Co Tophole opening apparatus
DE2630232A1 (de) * 1975-10-04 1977-04-07 Nippon Carbide Kogyo Kk Automatische abstichmaschine fuer den abstich bei elektrischen hochoefen und oefen fuer die herstellung von legierungen o.dgl.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE410549C (de) * 1921-06-06 1925-03-03 Huettenbetr Ag F Vorrichtung zum Abstechen von Hochoefen
DE437206C (de) * 1926-05-05 1926-11-16 Ag Deutsche Maschf Vorrichtung zum Abstechen von Hochoefen
GB470630A (en) * 1936-05-22 1937-08-18 Fernand Eloy An improved pneumatic hammer for piercing the tapping-holes of blast furnaces
DE1231272B (de) * 1959-04-21 1966-12-29 Dango & Dienenthal Kommanditge Verfahren und Vorrichtung zum OEffnen des Stichlochs von Schachtoefen, insbesondere von Hochoefen, durch Bohren
DE1552707A1 (de) * 1966-03-02 1970-07-02 Volk Geb Knaebler Spannelement,bei welchem die Spannkraft durch ein Druckmittel erzeugt wird
AT265338B (de) * 1966-06-07 1968-10-10 Voest Ag Stichlochbohrmaschine
US3862750A (en) * 1972-10-17 1975-01-28 Inland Steel Co Tophole opening apparatus
DE2630232A1 (de) * 1975-10-04 1977-04-07 Nippon Carbide Kogyo Kk Automatische abstichmaschine fuer den abstich bei elektrischen hochoefen und oefen fuer die herstellung von legierungen o.dgl.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041942A1 (fr) * 1980-06-06 1981-12-16 Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) Procédé pour boucher et déboucher réciproquement le trou de coulée de fours métallurgiques, notamment de hauts fourneaux
FR2494414A1 (fr) * 1980-11-17 1982-05-21 Wurth Paul Sa 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
DE3241746A1 (de) * 1982-02-03 1983-08-04 Paul Wurth S.A., 1122 Luxembourg Vorrichtung zum kuppeln einer bohrstange fuer schachtofenabstichloecher mit dem arbeitswerkzeug einer bohrmaschine
FR2520857A1 (fr) * 1982-02-03 1983-08-05 Wurth Paul Sa Dispositif d'accouplement d'une tige de percage du trou de coulee d'un four a cuve a l'outil de travail d'une machine de percage
AT380563B (de) * 1982-02-03 1986-06-10 Wurth Paul Sa Vorrichtung zum kuppeln einer bohrstange fuer schachtofenabstichloecher mit dem arbeitswerkzeug einer bohrmaschine
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

Also Published As

Publication number Publication date
AT361955B (de) 1981-04-10
EP0018347B1 (fr) 1983-09-28
DE3064999D1 (en) 1983-11-03
ATA158779A (de) 1980-09-15

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