JPS56105432A - Method and apparatus for producing cold-briquetted ore - Google Patents

Method and apparatus for producing cold-briquetted ore

Info

Publication number
JPS56105432A
JPS56105432A JP899880A JP899880A JPS56105432A JP S56105432 A JPS56105432 A JP S56105432A JP 899880 A JP899880 A JP 899880A JP 899880 A JP899880 A JP 899880A JP S56105432 A JPS56105432 A JP S56105432A
Authority
JP
Japan
Prior art keywords
ore
pellets
hot
green
iron
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
JP899880A
Other languages
Japanese (ja)
Inventor
Yoji Tozawa
Minoru Ichidate
Toshihiko Kubo
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 JP899880A priority Critical patent/JPS56105432A/en
Publication of JPS56105432A publication Critical patent/JPS56105432A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent green ore briquets from mutual adhesion and increase the strength thereof in a short time period of curing by a method wherein the cold- briquetted ore such as iron ore is passed through a hot, humid atmosphere at a specified temperature.
CONSTITUTION: Portland cement is added to iron-containing powder material such as particulate iron ore, iron-containing dust, etc. in a weight ratio of 0.08W1, and the mixture is granulated into green pellets having a water content of 5% by a granulating machine with a granulating pressure of 2ton/cm2. The green ore pellets 17 are thrown into a shaft furnace 1 through a chute 14, and piled on the furnace bottom 5 provided with slanted surfaces 6. A mixture of hot air and steam for forming the hot, humid atmosphere having a temperature of not lower than 70°C and a water content of not lower than the saturation point is blown in from pipes 2, 8. Simultaneously, an ore-discharging turntable 9 below the bottom 5 is rotated and the ore pellets being discharged via gaps 7 are raked out by a scraper 12. In this case, the green pellets in the furnace are allowed to descend through the hot, humid atmosphere at a descending rate of not lower than 0.1m/hr, thereby maintaining the strength of the pellets while preventing them from mutual adhesion.
COPYRIGHT: (C)1981,JPO&Japio
JP899880A 1980-01-28 1980-01-28 Method and apparatus for producing cold-briquetted ore Pending JPS56105432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP899880A JPS56105432A (en) 1980-01-28 1980-01-28 Method and apparatus for producing cold-briquetted ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP899880A JPS56105432A (en) 1980-01-28 1980-01-28 Method and apparatus for producing cold-briquetted ore

Publications (1)

Publication Number Publication Date
JPS56105432A true JPS56105432A (en) 1981-08-21

Family

ID=11708347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP899880A Pending JPS56105432A (en) 1980-01-28 1980-01-28 Method and apparatus for producing cold-briquetted ore

Country Status (1)

Country Link
JP (1) JPS56105432A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007231329A (en) * 2006-02-28 2007-09-13 Jfe Steel Kk Nonfired agglomerated ore for iron manufacture
WO2009122922A1 (en) * 2008-03-31 2009-10-08 株式会社テツゲン Process for producing cement-bonded ore agglomerates
JP2013079433A (en) * 2011-10-05 2013-05-02 Nippon Steel & Sumitomo Metal Corp Apparatus and method for aging nonfired agglomerate
JP2018048390A (en) * 2016-09-23 2018-03-29 新日鐵住金株式会社 Manufacturing method of carbon-containing non-burned agglomerated ore for blast furnace

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007231329A (en) * 2006-02-28 2007-09-13 Jfe Steel Kk Nonfired agglomerated ore for iron manufacture
WO2009122922A1 (en) * 2008-03-31 2009-10-08 株式会社テツゲン Process for producing cement-bonded ore agglomerates
AU2009233017B2 (en) * 2008-03-31 2011-10-20 Tetsugen Corporation Process for producing cement-bonded ore agglomerates
KR101187063B1 (en) 2008-03-31 2012-09-28 신닛뽄세이테쯔 카부시키카이샤 Process for producing cement-bonded ore agglomerates
US8435439B2 (en) 2008-03-31 2013-05-07 Tetsugen Corporation Method of production of cement bonded agglomerated ore
JP2013079433A (en) * 2011-10-05 2013-05-02 Nippon Steel & Sumitomo Metal Corp Apparatus and method for aging nonfired agglomerate
JP2018048390A (en) * 2016-09-23 2018-03-29 新日鐵住金株式会社 Manufacturing method of carbon-containing non-burned agglomerated ore for blast furnace

Similar Documents

Publication Publication Date Title
US2654594A (en) Operation of vertical shaft furnaces
JPS54103702A (en) Method of producing non-baked pelletized ore for making pig iron
US4209322A (en) Method for processing dust-like matter from metallurgical waste gases
JPS56105432A (en) Method and apparatus for producing cold-briquetted ore
US3323901A (en) Process of pelletizing ores
JPS58133335A (en) Method and apparatus for preparing non-sintered finished briquette
JPS5562129A (en) Removing method for sox in exhaust gas in reduced pellet manufacturing process
JPS57170823A (en) Fluidized roasting method and apparatus
US3146088A (en) Method of baking ore briquettes
US4231791A (en) Roasting of sulphide materials
JPS579841A (en) Manufacture of unfired briquetted ore for iron manufacture
JP4112827B2 (en) Method for treating Cr-containing sludge
JPS63149331A (en) Production of burnt agglomerated ore
US3864119A (en) Method and apparatus for simultaneously producing large and small heat hardened agglomerates of mineral ore
JPS57183323A (en) Preparation of quick lime
US3235372A (en) Hard burned agglomerate and process for making same
JPS5381405A (en) Treating method for blast furnace dust
JPS5789440A (en) Production of sintered ore
SE439327B (en) PROCEDURE FOR THE PREPARATION OF A SUBSTANCE IN SUCCESSION CHARGES
JPS55158236A (en) Manufacture of unfired pellet or briquette
JPS5266806A (en) Control device of rotating chute for blast furnace
SU739323A1 (en) Agglomerating machine
SU435616A1 (en) METHOD OF SAFELY STRENGTHENING OCTOBER
CA1195505A (en) Manufacture of a product to be sintered from fine- grain iron-oxide material
JPS5514862A (en) Sintering method for decreasing nitrogen oxide