JPS54136505A - Repairing method for annular blast pipe of blast furnace - Google Patents

Repairing method for annular blast pipe of blast furnace

Info

Publication number
JPS54136505A
JPS54136505A JP4503578A JP4503578A JPS54136505A JP S54136505 A JPS54136505 A JP S54136505A JP 4503578 A JP4503578 A JP 4503578A JP 4503578 A JP4503578 A JP 4503578A JP S54136505 A JPS54136505 A JP S54136505A
Authority
JP
Japan
Prior art keywords
irregular
fire
iron shell
resistant
resistant material
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
JP4503578A
Other languages
Japanese (ja)
Other versions
JPS5736321B2 (en
Inventor
Hideo Kato
Takashi Okamoto
Masahiro Soma
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP4503578A priority Critical patent/JPS54136505A/en
Publication of JPS54136505A publication Critical patent/JPS54136505A/en
Publication of JPS5736321B2 publication Critical patent/JPS5736321B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Blast Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

PURPOSE: To prevent iron shell at irregular side blasting zone from bursting, by arranging fire- resistant material at positions, where iron shell and irregular-shaped fire-resistant material are removed from, the positions facing each other with the irregular side blasting zone between them, and by pouring mortar into the clearance between irregular-shaped fire-resistant material and fire- resistant, heat-insulating bricks at the irregular side blasting zone.
CONSTITUTION: The annular blast pipe 1 of a blast furnace is constituted of irregular-shaped fire- resistant material 3, a clearance 4, fire-resistant, heat-insulating bricks 5, fire bricks 6 arranged inside of iron shell 2. Irregular side blast passes as shown by arrows 7 through the crack in the firebricks 6, joint of the fire-resistant, heat-insulating bricks 5, and the clearance 4, so that the irregular side blasting zone is easily detected because the iron shell at the place is heated to high temp. The iron shell 2 and the irregular-shaped fire-resistant material 3 on both sides of the irregular side blasting zone are removed, and new fire-resistant materials 8 are set at the places, and are covered with iron shells 2'. Then an opening 9 is made in the iron shell 2 and in the irregular-shaped fire-resistant material 3, and the clearance 4 is plugged with mortar to prevent irregular side blast from blowing through. Hereby, burst of iron shell due to increase in heat load on the iron shell caused by irregular side blast is prevented.
COPYRIGHT: (C)1979,JPO&Japio
JP4503578A 1978-04-17 1978-04-17 Repairing method for annular blast pipe of blast furnace Granted JPS54136505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4503578A JPS54136505A (en) 1978-04-17 1978-04-17 Repairing method for annular blast pipe of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4503578A JPS54136505A (en) 1978-04-17 1978-04-17 Repairing method for annular blast pipe of blast furnace

Publications (2)

Publication Number Publication Date
JPS54136505A true JPS54136505A (en) 1979-10-23
JPS5736321B2 JPS5736321B2 (en) 1982-08-03

Family

ID=12708081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4503578A Granted JPS54136505A (en) 1978-04-17 1978-04-17 Repairing method for annular blast pipe of blast furnace

Country Status (1)

Country Link
JP (1) JPS54136505A (en)

Also Published As

Publication number Publication date
JPS5736321B2 (en) 1982-08-03

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