ATE166448T1 - DRILLING HEAD FOR DRILLING BLASTY FURNACE TITHOLES - Google Patents

DRILLING HEAD FOR DRILLING BLASTY FURNACE TITHOLES

Info

Publication number
ATE166448T1
ATE166448T1 AT93101567T AT93101567T ATE166448T1 AT E166448 T1 ATE166448 T1 AT E166448T1 AT 93101567 T AT93101567 T AT 93101567T AT 93101567 T AT93101567 T AT 93101567T AT E166448 T1 ATE166448 T1 AT E166448T1
Authority
AT
Austria
Prior art keywords
steel
pipe
piece
drilling
titholes
Prior art date
Application number
AT93101567T
Other languages
German (de)
Inventor
Jochen Wader
Original Assignee
Wader Willi 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 Wader Willi Gmbh filed Critical Wader Willi Gmbh
Application granted granted Critical
Publication of ATE166448T1 publication Critical patent/ATE166448T1/en

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1527—Taphole forming equipment, e.g. boring machines, piercing tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Earth Drilling (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Drilling And Boring (AREA)
  • Drilling Tools (AREA)

Abstract

The present invention relates to a boring cutter head (1) for boring tapping holes on shaft furnaces, consisting of a steel-pipe piece (4) and at least two elongate steel pieces (6) which are arranged on the circumferential surface (8) of the steel-pipe piece (4), distributed over its circumference and projecting radially therefrom as well as extending in the direction of the longitudinal axis (10) of the pipe and by a length (A) beyond an end face (12) of the steel-pipe piece (4). Each steel piece (6) has on its front end, which projects beyond the steel-pipe piece (4), two roof-shaped end faces (18, 19) with an intermediate cutting edge (20) which runs from the inner region of the steel piece (6), which faces the longitudinal axis (10) of the pipe, to the outer region, the roof-shaped end faces (18, 19) being designed asymmetrically in relation to the cutting edge (20). <IMAGE>
AT93101567T 1992-06-05 1993-02-02 DRILLING HEAD FOR DRILLING BLASTY FURNACE TITHOLES ATE166448T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9207632U DE9207632U1 (en) 1992-06-05 1992-06-05 Drilling head for drilling blast furnace tap holes

Publications (1)

Publication Number Publication Date
ATE166448T1 true ATE166448T1 (en) 1998-06-15

Family

ID=6880275

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93101567T ATE166448T1 (en) 1992-06-05 1993-02-02 DRILLING HEAD FOR DRILLING BLASTY FURNACE TITHOLES

Country Status (3)

Country Link
EP (1) EP0576784B1 (en)
AT (1) ATE166448T1 (en)
DE (2) DE9207632U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005044492A1 (en) * 2003-11-11 2005-05-19 Techmo Entwicklungs- Und Vertriebs Gmbh Method and bore crown for drilling a hole, particularly a tap hole in a furnace

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1602498A (en) * 1923-12-26 1926-10-12 Edward W Mccanna Rock-drill bit
DE624060C (en) * 1933-06-08 1936-01-11 Gewerkschaft Wallram Rock drill with offset asymmetrical blades
US2368512A (en) * 1942-09-14 1945-01-30 Ingersoll Rand Co Drilling implement
US2976944A (en) * 1957-09-27 1961-03-28 Bassinger Tool Company Percussion drill bit
FR2041448A5 (en) * 1969-04-24 1971-01-29 Higgins John
US3592276A (en) * 1969-04-28 1971-07-13 A M Byers Co Rotary percussion drilling apparatus
US3605924A (en) * 1969-08-26 1971-09-20 Thompson Products Ltd Drill bit
FR2093292A5 (en) * 1970-06-09 1972-01-28 Atlas Copco France Furnace tapping tool - for molten metal
US4069880A (en) * 1973-05-24 1978-01-24 Kennametal Inc. Excavation tool
US4047514A (en) * 1976-10-12 1977-09-13 Toyo Kogyo Co., Ltd. Furnace taphole drilling bit
DE2824958C3 (en) * 1978-06-07 1985-06-05 Fa. Willi Wader, 5608 Radevormwald Method for producing a monoblock boring bar with six cutting edges of the same size
NL191520C (en) * 1980-05-12 1995-08-21 Hoogovens Groep Bv Mortise drill for a blast furnace.
DD233590B1 (en) * 1985-01-07 1988-02-24 Bandstahlkombinat Matern Veb METHOD FOR PRODUCING A DRILLING TOOL FOR OPENING THE HOOD STITCH
DE3545758A1 (en) * 1985-12-21 1987-06-25 Wengeler & Kalthoff Hammerwerk Drill for drilling out tap holes of blast furnaces
DE3707798A1 (en) * 1987-03-11 1988-09-22 Hawera Probst Kg Hartmetall ROCK DRILL
EP0456994A1 (en) * 1990-05-15 1991-11-21 Willi Wader Gmbh Drill shaft for boring the taphole of a blast furnace

Also Published As

Publication number Publication date
EP0576784A1 (en) 1994-01-05
DE59308562D1 (en) 1998-06-25
EP0576784B1 (en) 1998-05-20
DE9207632U1 (en) 1992-08-27

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee