EP3330387A4 - Apparatus for blowing dust coal of melting furnace, and blowing method therefor - Google Patents

Apparatus for blowing dust coal of melting furnace, and blowing method therefor Download PDF

Info

Publication number
EP3330387A4
EP3330387A4 EP16830798.1A EP16830798A EP3330387A4 EP 3330387 A4 EP3330387 A4 EP 3330387A4 EP 16830798 A EP16830798 A EP 16830798A EP 3330387 A4 EP3330387 A4 EP 3330387A4
Authority
EP
European Patent Office
Prior art keywords
blowing
melting furnace
method therefor
dust coal
blowing method
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
EP16830798.1A
Other languages
German (de)
French (fr)
Other versions
EP3330387A1 (en
EP3330387B1 (en
Inventor
Chang Hyung Lee
Byung Hwan Jung
Tae Hoon Kim
Il Hyun Cho
Geum Sik Heor
Eung Soo Choi
Jin Chan Bae
Tae In Kang
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.)
Posco Holdings Inc
Original Assignee
Posco Co 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
Priority claimed from KR1020150106152A external-priority patent/KR101739861B1/en
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP3330387A1 publication Critical patent/EP3330387A1/en
Publication of EP3330387A4 publication Critical patent/EP3330387A4/en
Application granted granted Critical
Publication of EP3330387B1 publication Critical patent/EP3330387B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C21B13/002—Reduction of iron ores by passing through a heated column of carbon
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/006—Automatically controlling the process

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)
  • Environmental & Geological Engineering (AREA)
  • Manufacture Of Iron (AREA)
EP16830798.1A 2015-07-27 2016-07-25 Apparatus for blowing dust coal of melting furnace Active EP3330387B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020150106152A KR101739861B1 (en) 2015-07-27 2015-07-27 Apparatus for injection the pulverized coal of melting furnace and this method
KR20150174150 2015-12-08
PCT/KR2016/008111 WO2017018765A1 (en) 2015-07-27 2016-07-25 Apparatus for blowing dust coal of melting furnace, and blowing method therefor

Publications (3)

Publication Number Publication Date
EP3330387A1 EP3330387A1 (en) 2018-06-06
EP3330387A4 true EP3330387A4 (en) 2018-06-20
EP3330387B1 EP3330387B1 (en) 2020-05-06

Family

ID=57884840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16830798.1A Active EP3330387B1 (en) 2015-07-27 2016-07-25 Apparatus for blowing dust coal of melting furnace

Country Status (3)

Country Link
EP (1) EP3330387B1 (en)
CN (1) CN108026596A (en)
WO (1) WO2017018765A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117004784B (en) * 2023-10-07 2023-11-28 山西建龙实业有限公司 Preheating system of nitrogen for blast furnace pulverized coal injection

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0995724A (en) * 1995-10-02 1997-04-08 Nkk Corp Scrap melting method
KR20030030495A (en) * 2001-10-11 2003-04-18 주식회사 포스코 Melt gasifier of corex facilities having coal dust injection device
CN101498554A (en) * 2009-03-12 2009-08-05 北京首钢自动化信息技术有限公司 Serial automatic coal injection control system and method for blast furnace
WO2015000604A1 (en) * 2013-07-01 2015-01-08 Siemens Vai Metals Technologies Gmbh Desulfurization of gases in the production of pig iron
US20150184939A1 (en) * 2012-09-20 2015-07-02 Mitsubishi Heavy Industries, Ltd. Blast furnace installation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920010525B1 (en) * 1990-09-08 1992-12-04 포항종합제철 주식회사 Piercing method of injection line for fine particle coals
JP3349337B2 (en) * 1996-04-02 2002-11-25 三菱重工業株式会社 Burner for wet furnace
KR100985238B1 (en) * 2003-07-08 2010-10-04 주식회사 포스코 Pulverized coal injection control device according to fluctuation of gas utilization rate
CN100455678C (en) * 2006-01-25 2009-01-28 中冶赛迪工程技术股份有限公司 Smelting Reduction Furnace Injecting Pulverized Coal Technology
CN104946841A (en) * 2014-03-27 2015-09-30 宝山钢铁股份有限公司 Process for making iron by virtue of COREX furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0995724A (en) * 1995-10-02 1997-04-08 Nkk Corp Scrap melting method
KR20030030495A (en) * 2001-10-11 2003-04-18 주식회사 포스코 Melt gasifier of corex facilities having coal dust injection device
CN101498554A (en) * 2009-03-12 2009-08-05 北京首钢自动化信息技术有限公司 Serial automatic coal injection control system and method for blast furnace
US20150184939A1 (en) * 2012-09-20 2015-07-02 Mitsubishi Heavy Industries, Ltd. Blast furnace installation
WO2015000604A1 (en) * 2013-07-01 2015-01-08 Siemens Vai Metals Technologies Gmbh Desulfurization of gases in the production of pig iron

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017018765A1 *

Also Published As

Publication number Publication date
CN108026596A (en) 2018-05-11
WO2017018765A8 (en) 2017-03-16
EP3330387A1 (en) 2018-06-06
WO2017018765A1 (en) 2017-02-02
EP3330387B1 (en) 2020-05-06

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