JPS5569210A - Shaft type reducing furnace - Google Patents

Shaft type reducing furnace

Info

Publication number
JPS5569210A
JPS5569210A JP14224378A JP14224378A JPS5569210A JP S5569210 A JPS5569210 A JP S5569210A JP 14224378 A JP14224378 A JP 14224378A JP 14224378 A JP14224378 A JP 14224378A JP S5569210 A JPS5569210 A JP S5569210A
Authority
JP
Japan
Prior art keywords
raw material
distributor
segregation
uniform
reducing
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
JP14224378A
Other languages
Japanese (ja)
Other versions
JPS5931566B2 (en
Inventor
Yoshio Shimozato
Shigeo Itano
Kimiaki Otawa
Yoshibumi Ito
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP14224378A priority Critical patent/JPS5931566B2/en
Publication of JPS5569210A publication Critical patent/JPS5569210A/en
Publication of JPS5931566B2 publication Critical patent/JPS5931566B2/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)

Abstract

PURPOSE:To prevent the segregation of powdered ore and to make the degree of draft in section uniform and also, to improve the reduction ratio and yield, by providing conical raw material distributor against each raw material feeding tube relatively just under the raw material feeding apparatus of shaft type reducing furnace. CONSTITUTION:The conical raw material distributor 20 is provided against the raw material feeding tube 6 of shaft type reducing furnace relatively. Bottom outer diameter of the distributor 20 is made larger than the inner diameter of the tube 6. Ring diameter of the ring-shaped segregation layer 9 dropping near the wall of the tube 6 by segregation, is made large by the distributor 20 and segregation concentration is decreased and at the same time, descending powdered ore is spread and distributed over the surrounding part 24 by the accelerated reducing flow 23 rising up in the furnace and the gas flow 22 escaped from the vacant space part 21 just under the distributor 20 etc. Thus, the degree of draft is made uniform in section and uniform reducing reaction is carried out and then, yield of product is able to improve because reduced iron having uniform reducing ratio, is obtained.
JP14224378A 1978-11-20 1978-11-20 Shaft type reduction furnace Expired JPS5931566B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14224378A JPS5931566B2 (en) 1978-11-20 1978-11-20 Shaft type reduction furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14224378A JPS5931566B2 (en) 1978-11-20 1978-11-20 Shaft type reduction furnace

Publications (2)

Publication Number Publication Date
JPS5569210A true JPS5569210A (en) 1980-05-24
JPS5931566B2 JPS5931566B2 (en) 1984-08-02

Family

ID=15310762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14224378A Expired JPS5931566B2 (en) 1978-11-20 1978-11-20 Shaft type reduction furnace

Country Status (1)

Country Link
JP (1) JPS5931566B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1205561A1 (en) * 2000-11-14 2002-05-15 Danieli & C. Officine Meccaniche SpA Furnace for the direct reduction of iron oxides and method for the manufacturing of iron
WO2014060996A1 (en) * 2012-10-18 2014-04-24 Tenova Pyromet (Proprietary) Limited Heating apparatus and gas distributor for use in the heating apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1205561A1 (en) * 2000-11-14 2002-05-15 Danieli & C. Officine Meccaniche SpA Furnace for the direct reduction of iron oxides and method for the manufacturing of iron
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

Also Published As

Publication number Publication date
JPS5931566B2 (en) 1984-08-02

Similar Documents

Publication Publication Date Title
ES8304807A1 (en) Method and apparatus for processing matter in a turbulent mass of particulate material.
JPS5518585A (en) Manufacture of sintered ore
GB1386012A (en) Blending
ES463167A1 (en) Shaft furnace for direct reduction of ores
JPS5569210A (en) Shaft type reducing furnace
JPS5681655A (en) Refining method for medium-carbon high-chromium molten metal
GB1123546A (en) Tray for contacting liquids and gases
FR2250726A1 (en) Refuse and thickened slurry conversion to compost - in chamber with oxygenous gas flow through revolving arms
JPS5275690A (en) Production of carbon materials
JPS5350071A (en) Method and apparatus for discharging extraneous substance
GB1445650A (en) Passivating process for sponge iron
JPS5337120A (en) Operating method for converter
JPS57174403A (en) Operation method for blast furnace
GB809960A (en) Pneumatic powder feeder
JPS5690860A (en) Carbon black manufacturing apparatus
GB1061412A (en) Plant for dry quenching of coke or other materials
KR890000672A (en) Method and apparatus for producing molten metal from powder ore
JPS5239701A (en) Treatment of powders of coal and coke
ES426200A1 (en) Discharging device of a shaft furnace having cooling means
JPS53114709A (en) Blowing apparatus
GB1386356A (en) Zone melting process
JPS5597409A (en) Blast furnace operation method
JPS5677045A (en) Technique of recycling casting waste sand containing alkali seed to neutral resource through hot air treatment
JPS5717499A (en) Manufacture of silicon nitride whisker
JPS5591905A (en) Using method for reducing agent in rotary kiln