JPS56105432A - Method and apparatus for producing cold-briquetted ore - Google Patents
Method and apparatus for producing cold-briquetted oreInfo
- 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
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
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)
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 |
-
1980
- 1980-01-28 JP JP899880A patent/JPS56105432A/en active Pending
Cited By (7)
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 |
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