JPS56133405A - Method for charging raw material into blast furnace - Google Patents

Method for charging raw material into blast furnace

Info

Publication number
JPS56133405A
JPS56133405A JP3667180A JP3667180A JPS56133405A JP S56133405 A JPS56133405 A JP S56133405A JP 3667180 A JP3667180 A JP 3667180A JP 3667180 A JP3667180 A JP 3667180A JP S56133405 A JPS56133405 A JP S56133405A
Authority
JP
Japan
Prior art keywords
sieve
sintered ore
tank
raw material
blast furnace
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
JP3667180A
Other languages
Japanese (ja)
Inventor
Kazuaki Sato
Takaaki Tatewaki
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
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP3667180A priority Critical patent/JPS56133405A/en
Publication of JPS56133405A publication Critical patent/JPS56133405A/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
    • C21B5/008—Composition or distribution of the charge

Abstract

PURPOSE:To uniformalize the grain size distribution of charging materials in the radial direction of a furnace body and improve gas flow and reaction conditions by classifying the same raw materials to plural aggregations corresponding to grain sizes by the use of plural sieves of different sieve openings and charging the different aggregations of the same raw material separately one after another into the blast furnace. CONSTITUTION:There are the final ends of belt conveyors 15 which convey sintered ore 10 above raw material tanks 11, 12, and vibration sieves 13, 14 are provided in two stages between the tanks 11 and 12. The sieve openings of the sieve 13 in the upper stage are set at, for example, 40mm., and those of the sieve 14 in the lower stage at 5mm.. The conveyed sintered ore 10 is first classified with the sieve 13 and the sintered ore 10 of plus sieve is stored into the tank 12 and the sintered ore 10 of plus sieve of the sieve 14 into the tank 11. The sintered ore 10 of minus sieve of the sieve 14 is returned to the upper process. Hence, the 5-40mm. sintered ore is stored in the tank 11 and the 40-100mm. sintered ore in the tank 12. Thereupon, the raw materials are dispensed one after another from the tanks 11, 12 and are charged into the blast furnace. The similar operations are also made with the other raw materials.
JP3667180A 1980-03-22 1980-03-22 Method for charging raw material into blast furnace Pending JPS56133405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3667180A JPS56133405A (en) 1980-03-22 1980-03-22 Method for charging raw material into blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3667180A JPS56133405A (en) 1980-03-22 1980-03-22 Method for charging raw material into blast furnace

Publications (1)

Publication Number Publication Date
JPS56133405A true JPS56133405A (en) 1981-10-19

Family

ID=12476311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3667180A Pending JPS56133405A (en) 1980-03-22 1980-03-22 Method for charging raw material into blast furnace

Country Status (1)

Country Link
JP (1) JPS56133405A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61272304A (en) * 1985-05-29 1986-12-02 Ishikawajima Harima Heavy Ind Co Ltd Method for distributing raw material to be charged
KR20020024969A (en) * 2000-09-27 2002-04-03 이구택 Coke Weighing Method for the Furnace and Balancing Method of the Air Resistance using the same
CN105803141A (en) * 2016-04-06 2016-07-27 攀钢集团攀枝花钢铁研究院有限公司 High-chrome vanadium-titanium magnetite blast furnace smelting charging material and blast furnace smelting method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61272304A (en) * 1985-05-29 1986-12-02 Ishikawajima Harima Heavy Ind Co Ltd Method for distributing raw material to be charged
KR20020024969A (en) * 2000-09-27 2002-04-03 이구택 Coke Weighing Method for the Furnace and Balancing Method of the Air Resistance using the same
CN105803141A (en) * 2016-04-06 2016-07-27 攀钢集团攀枝花钢铁研究院有限公司 High-chrome vanadium-titanium magnetite blast furnace smelting charging material and blast furnace smelting method

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