JPS5448612A - Air blasting in shaft furnace - Google Patents

Air blasting in shaft furnace

Info

Publication number
JPS5448612A
JPS5448612A JP11528677A JP11528677A JPS5448612A JP S5448612 A JPS5448612 A JP S5448612A JP 11528677 A JP11528677 A JP 11528677A JP 11528677 A JP11528677 A JP 11528677A JP S5448612 A JPS5448612 A JP S5448612A
Authority
JP
Japan
Prior art keywords
furnace
gas
reducing gas
shaft furnace
gas flow
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
JP11528677A
Other languages
Japanese (ja)
Inventor
Kazumi Yasuda
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 JP11528677A priority Critical patent/JPS5448612A/en
Publication of JPS5448612A publication Critical patent/JPS5448612A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To stabilize the flow of gas inside the furnace and to enhance the utility efficiency of reducing gas by providing obliquely the tuyere of shaft furnace, e.g., blast furnace, etc., blast furnace, etc., at a fixed angle against the furnace wall in order to make the gas flow line inside the furnace a spiral form. CONSTITUTION:Hot air is blown into the furnace from the tuyeres 1'a,1'b,...1'h set up at fixed oblique angle against the radial direction of the shaft furnace, e.g., blast furnace, etc., preferably in the range of theta of 0 to 60 deg. in order to make the gas flow line inside the furnace a spiral form. Thus, it is possible to lengthen the actual contact time between reducing gas and mineral ore to be reduced, and also to keep the uniform flow rate distribution in the radial direction of the furnace while maintaining stabilized gas flow. Thus, the utility efficiency of reducing gas can be raised.
JP11528677A 1977-09-26 1977-09-26 Air blasting in shaft furnace Pending JPS5448612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11528677A JPS5448612A (en) 1977-09-26 1977-09-26 Air blasting in shaft furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11528677A JPS5448612A (en) 1977-09-26 1977-09-26 Air blasting in shaft furnace

Publications (1)

Publication Number Publication Date
JPS5448612A true JPS5448612A (en) 1979-04-17

Family

ID=14658891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11528677A Pending JPS5448612A (en) 1977-09-26 1977-09-26 Air blasting in shaft furnace

Country Status (1)

Country Link
JP (1) JPS5448612A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681418A1 (en) * 1991-09-17 1993-03-19 Air Liquide Method of injecting oxidant gas and additives into a metal-smelting furnace, and smelting furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2681418A1 (en) * 1991-09-17 1993-03-19 Air Liquide Method of injecting oxidant gas and additives into a metal-smelting furnace, and smelting furnace
BE1006250A3 (en) * 1991-09-17 1994-07-05 Air Liquide Process gas injection and fuel additives in four metal fusion and melting furnace.

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