JPS55104439A - Manufacture of sintered ore - Google Patents
Manufacture of sintered oreInfo
- Publication number
- JPS55104439A JPS55104439A JP967979A JP967979A JPS55104439A JP S55104439 A JPS55104439 A JP S55104439A JP 967979 A JP967979 A JP 967979A JP 967979 A JP967979 A JP 967979A JP S55104439 A JPS55104439 A JP S55104439A
- Authority
- JP
- Japan
- Prior art keywords
- sio
- ore
- starting materials
- content
- amt
- 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
Links
Abstract
PURPOSE: To considerably improve the low temp. reduction powdering index of sintered ore by controlling the grain size of starting materials and the SiO2 content of the ore to specified values in manufacture of the ore.
CONSTITUTION: Fine iron ore, limestone, silica, recovered materials, coke, etc. as starting materials for sintered ore are pulverized so that 25W60wt% of the total amt. becomes 1mm or less in grain size. The amt. of SiO2 in the starting materials is controlled so as to lower the SiO2 content of manufactured sintered ore to 5.4wt% or less. In addn., the amt. of SiO2 in fine grain starting materials of 1mm or less is adjusted to 50wt% or more of the total SiO2 content. The starting materials thus adjusted in grain size and compsn. are mixed, granulated, and sintered. This sintered ore has an enhanced low temp. reduction powdering index without increasing the coke blending ratio and the slag content, that is, the total amt. of CaO, SiO2, etc., and it does not undergo deteriorations in productivity, coke unit and falling strength.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP967979A JPS55104439A (en) | 1979-02-01 | 1979-02-01 | Manufacture of sintered ore |
DE8080300299T DE3061710D1 (en) | 1979-02-01 | 1980-02-01 | An improved raw materials mix and process for producing self-fluxing, sintered ores |
EP19800300299 EP0015085B1 (en) | 1979-02-01 | 1980-02-01 | An improved raw materials mix and process for producing self-fluxing, sintered ores |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP967979A JPS55104439A (en) | 1979-02-01 | 1979-02-01 | Manufacture of sintered ore |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55104439A true JPS55104439A (en) | 1980-08-09 |
JPS5745458B2 JPS5745458B2 (en) | 1982-09-28 |
Family
ID=11726884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP967979A Granted JPS55104439A (en) | 1979-02-01 | 1979-02-01 | Manufacture of sintered ore |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55104439A (en) |
-
1979
- 1979-02-01 JP JP967979A patent/JPS55104439A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5745458B2 (en) | 1982-09-28 |
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