JPS56142810A - Device for charging raw materials into reducing shaft furnace - Google Patents

Device for charging raw materials into reducing shaft furnace

Info

Publication number
JPS56142810A
JPS56142810A JP4465380A JP4465380A JPS56142810A JP S56142810 A JPS56142810 A JP S56142810A JP 4465380 A JP4465380 A JP 4465380A JP 4465380 A JP4465380 A JP 4465380A JP S56142810 A JPS56142810 A JP S56142810A
Authority
JP
Japan
Prior art keywords
hopper
inert gas
ore
pressure
tank
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
JP4465380A
Other languages
Japanese (ja)
Other versions
JPS5922764B2 (en
Inventor
Michio Kabaru
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 JP4465380A priority Critical patent/JPS5922764B2/en
Publication of JPS56142810A publication Critical patent/JPS56142810A/en
Publication of JPS5922764B2 publication Critical patent/JPS5922764B2/en
Expired legal-status Critical Current

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
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

PURPOSE:To simplify the operation of the pressure in a exhaust pressure equalizing tank and charge iron ore into the furnace safely by supplying an inert gas through pipes which are provided at the upper part of a top hopper and the lower part of a material charging hopper, in the titled device. CONSTITUTION:During when the iron ore is stored in the material charging hopper 28, the inert gas is supplied into a valve chamber 26 and the lower part of the hopper 28 through the pipe 36 to dilute the air present between particles of the ore. Then, the ore is allowed to fall into the exhaust pressure equalizing tank 24 in a sealed condition, and the pressure in the tank 24 is adjusted to the pressure at the top part of the reducing shaft furnace 16 by the inert gas supplied through a pipe 31. When the ore is dropped into the top hopper 18, the inert gas is supplied into the hopper 18 through the pipe 20. The inert gas in the tank 24 is then discharged to adjust the atmosphere and the pressure in the tank to be an inert-gas atmosphere and atmospheric pressure, respectively. The ore in the top hopper 18 is charged into the furnace 16 through a throat part 12 while preventing the upward flow of reducing gas at the furnace top by the inert gas.
JP4465380A 1980-04-07 1980-04-07 Raw material charging device for shaft reduction furnace Expired JPS5922764B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4465380A JPS5922764B2 (en) 1980-04-07 1980-04-07 Raw material charging device for shaft reduction furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4465380A JPS5922764B2 (en) 1980-04-07 1980-04-07 Raw material charging device for shaft reduction furnace

Publications (2)

Publication Number Publication Date
JPS56142810A true JPS56142810A (en) 1981-11-07
JPS5922764B2 JPS5922764B2 (en) 1984-05-29

Family

ID=12697399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4465380A Expired JPS5922764B2 (en) 1980-04-07 1980-04-07 Raw material charging device for shaft reduction furnace

Country Status (1)

Country Link
JP (1) JPS5922764B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153815A (en) * 1983-02-21 1984-09-01 Kawasaki Steel Corp Feeding device of raw material to melt-reducing furnace
CN103205520A (en) * 2012-01-11 2013-07-17 中冶赛迪工程技术股份有限公司 Breaker of bound furnace charge in shaft furnace
WO2014060996A1 (en) * 2012-10-18 2014-04-24 Tenova Pyromet (Proprietary) Limited Heating apparatus and gas distributor for use in the heating apparatus
CN106834584A (en) * 2017-03-23 2017-06-13 江苏省冶金设计院有限公司 A kind of method of gas-based shaft kiln and production DRI

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153815A (en) * 1983-02-21 1984-09-01 Kawasaki Steel Corp Feeding device of raw material to melt-reducing furnace
JPS624443B2 (en) * 1983-02-21 1987-01-30 Kawasaki Steel Co
CN103205520A (en) * 2012-01-11 2013-07-17 中冶赛迪工程技术股份有限公司 Breaker of bound furnace charge in shaft furnace
WO2014060996A1 (en) * 2012-10-18 2014-04-24 Tenova Pyromet (Proprietary) Limited Heating apparatus and gas distributor for use in the heating apparatus
CN105143802A (en) * 2012-10-18 2015-12-09 特诺恩矿产私人有限公司 Heating apparatus and gas distributor for use in the heating apparatus
EA027331B1 (en) * 2012-10-18 2017-07-31 Тенова Минералз (Пти) Лтд. Heating apparatus and gas distributor for use therein
CN106834584A (en) * 2017-03-23 2017-06-13 江苏省冶金设计院有限公司 A kind of method of gas-based shaft kiln and production DRI

Also Published As

Publication number Publication date
JPS5922764B2 (en) 1984-05-29

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