IN2015DN00449A - - Google Patents

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Publication number
IN2015DN00449A
IN2015DN00449A IN449DEN2015A IN2015DN00449A IN 2015DN00449 A IN2015DN00449 A IN 2015DN00449A IN 449DEN2015 A IN449DEN2015 A IN 449DEN2015A IN 2015DN00449 A IN2015DN00449 A IN 2015DN00449A
Authority
IN
India
Prior art keywords
blow pipe
slag
slag removal
pulverized coal
removal device
Prior art date
Application number
Inventor
Masakazu Sakaguchi
Tsutomu Hamada
Takeshi Okada
Setsuo Omoto
Keiichi Nakagawa
Original Assignee
Mitsubishi Heavy Ind 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 Mitsubishi Heavy Ind Ltd filed Critical Mitsubishi Heavy Ind Ltd
Publication of IN2015DN00449A publication Critical patent/IN2015DN00449A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C21B7/163—Blowpipe assembly
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/24—Test rods or other checking devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/16—Arrangements of tuyeres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/26—Arrangements of controlling devices
    • 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
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • 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
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • F27D25/008—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag using fluids or gases, e.g. blowers, suction units

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Iron (AREA)
  • Blast Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

Provided is a slag removal device for a blow pipe that reduces the risk of pipe breakage etc. and is capable of achieving easy and reliable slag removal using a simple device configuration. The slag removal device comprises a blow pipe (30) that injects auxiliary fuel pulverized coal together with hot air from a tuyere (22) for a blast furnace main body (20) that produces pig iron from iron ore. The slag removal device for a blow pipe including a component that melts on to the pulverized coal slag as a result of the hot air and/or the combustion heat of the pulverized coal comprises a fluid jet nozzle (80) that sprays fluid towards a slag adhesion area inside the blow pipe (30).
IN449DEN2015 2012-09-20 2013-09-10 IN2015DN00449A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012207271A JP6016549B2 (en) 2012-09-20 2012-09-20 Slag remover
PCT/JP2013/074411 WO2014045947A1 (en) 2012-09-20 2013-09-10 Slag removal device

Publications (1)

Publication Number Publication Date
IN2015DN00449A true IN2015DN00449A (en) 2015-06-26

Family

ID=50341261

Family Applications (1)

Application Number Title Priority Date Filing Date
IN449DEN2015 IN2015DN00449A (en) 2012-09-20 2013-09-10

Country Status (7)

Country Link
US (1) US20150284816A1 (en)
JP (1) JP6016549B2 (en)
KR (1) KR20150027252A (en)
CN (1) CN104411839B (en)
DE (1) DE112013004600T5 (en)
IN (1) IN2015DN00449A (en)
WO (1) WO2014045947A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6057642B2 (en) * 2012-09-20 2017-01-11 三菱重工業株式会社 Slag removing device and slag removing method
EP3259376B1 (en) * 2015-02-17 2019-11-06 Tata Steel Limited Lance unblocking method and apparatus
CN110257576B (en) * 2019-07-18 2024-02-20 辽宁科技大学 Reducing synchronous coupling blast furnace tuyere injection device and injection method
CN115076704A (en) * 2022-06-20 2022-09-20 西安热工研究院有限公司 Coal-fired boiler

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072502A (en) * 1973-03-26 1978-02-07 Skf Industrial Trading And Development Co. B.V. Method apparatus for increasing blast gas temperature in a shaft furnace
JPS62161905A (en) * 1986-01-10 1987-07-17 Kobe Steel Ltd Device for removing deposit of blast tuyere of blast furnace
JPH08100208A (en) * 1994-10-03 1996-04-16 Nkk Corp Tuyere part structure for blowing pulverized coal to blast furnace
JPH1150113A (en) * 1997-08-02 1999-02-23 Nippon Steel Corp Injection of pulverized fine coal into blast furnace
JP2001342508A (en) * 2000-06-05 2001-12-14 Nkk Corp Apparatus and method for opening blast tuyere of blast furnace
CN101914645B (en) * 2010-08-31 2012-07-04 江苏沙钢集团有限公司 Method and device for blocking and unchoking blast furnace tuyere
JP6057642B2 (en) * 2012-09-20 2017-01-11 三菱重工業株式会社 Slag removing device and slag removing method

Also Published As

Publication number Publication date
JP6016549B2 (en) 2016-10-26
WO2014045947A1 (en) 2014-03-27
JP2014062289A (en) 2014-04-10
DE112013004600T5 (en) 2015-06-11
KR20150027252A (en) 2015-03-11
CN104411839A (en) 2015-03-11
US20150284816A1 (en) 2015-10-08
CN104411839B (en) 2017-03-01

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