JPH0251243U - - Google Patents

Info

Publication number
JPH0251243U
JPH0251243U JP12729588U JP12729588U JPH0251243U JP H0251243 U JPH0251243 U JP H0251243U JP 12729588 U JP12729588 U JP 12729588U JP 12729588 U JP12729588 U JP 12729588U JP H0251243 U JPH0251243 U JP H0251243U
Authority
JP
Japan
Prior art keywords
bit
hollow rod
hole
hollow
vent hole
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.)
Pending
Application number
JP12729588U
Other languages
English (en)
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 filed Critical
Priority to JP12729588U priority Critical patent/JPH0251243U/ja
Publication of JPH0251243U publication Critical patent/JPH0251243U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Blast Furnaces (AREA)

Description

【図面の簡単な説明】
第1図は本考案のビツト付中空ロツドの先端部
を示す断面図、第2図は従来のビツト付中空ロツ
ドの先端部を示す断面図、第3図は一般の出銑口
開孔機の概略正面図である。 1……出銑口開孔機、2……ビツト、2a……
中空室、2b……側面噴出孔、3……切刃、3a
……中央部噴出孔、9……中空ロツド、9a……
通気孔、18……鋼球。

Claims (1)

    【実用新案登録請求の範囲】
  1. 中心部に通気孔を穿つた中空ロツドの先端部に
    上記中空ロツドの通気孔と連通する噴出孔を穿つ
    たビツトをネジ結合により着脱自在に連結した出
    銑口開孔機用のビツト付中空ロツドにおいて、上
    記ビツトの内部に噴出孔と連通すると共に上記中
    空ロツドの通気孔と連通する中空室を設け、上記
    中空室内に上記通気孔および噴出孔の各内径より
    も大なる外径を有する逆流防止用の鋼球またはセ
    ラミツク球を移動自在に内在させてなることを特
    徴とする出銑口開孔起用のビツト付中空ロツド。
JP12729588U 1988-09-30 1988-09-30 Pending JPH0251243U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12729588U JPH0251243U (ja) 1988-09-30 1988-09-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12729588U JPH0251243U (ja) 1988-09-30 1988-09-30

Publications (1)

Publication Number Publication Date
JPH0251243U true JPH0251243U (ja) 1990-04-10

Family

ID=31379599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12729588U Pending JPH0251243U (ja) 1988-09-30 1988-09-30

Country Status (1)

Country Link
JP (1) JPH0251243U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100338647B1 (ko) * 1997-10-23 2002-08-21 주식회사 포스코 용광로출선구일발개공용이중비트

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62107008A (ja) * 1985-10-31 1987-05-18 Sumitomo Metal Ind Ltd 高炉出銑口開孔機

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62107008A (ja) * 1985-10-31 1987-05-18 Sumitomo Metal Ind Ltd 高炉出銑口開孔機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100338647B1 (ko) * 1997-10-23 2002-08-21 주식회사 포스코 용광로출선구일발개공용이중비트

Similar Documents

Publication Publication Date Title
JPH0428955U (ja)
JPS6420221U (ja)
JPS6442815U (ja)
JPH0451372U (ja)
JPS62167610U (ja)
JPH0370257U (ja)
JPH01110009U (ja)
JPH03103105U (ja)
JPS61159181U (ja)
JPS62141497U (ja)
JPS6333906U (ja)
JPH0278312U (ja)
JPH0479005U (ja)
JPS61154618U (ja)
JPH0451316U (ja)
JPH0160846U (ja)
JPH01138514U (ja)
JPH01149211U (ja)
JPH0398016U (ja)
JPS63193609U (ja)
JPS6353669U (ja)
JPH0274113U (ja)
JPS6332720U (ja)
JPS61125589U (ja)
JPS6416299U (ja)