English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The main raw material of blast furnace is sinter, even in the Kakogawa Works which has a set of sinter and pellet plants, the blending ratio of sinter in blast furnace raw materials accounts for 40 to 50 mass%. Sinter plant use mainly iron ore with a particle less than about 5 mm, which called sinter feed. High grade sinter feed produced in Australia and Brazil has been used at steelworks in Japan. In recent years, high-grade iron ore is depleted. Al2O3 content of iron ore has risen, and it makes strength and RDI (Reduction Degradation Index) of sinter worse. Additionally it increases slag ratio in blast furnace, which makes the performance of blast furnace worse. Therefore, brand new high-grade iron ore is necessary to sintering process. Some of high-grade iron ores called pellet feed, finer than sinter feed, has been used in pelletizing process. Especially, pellet feed of magnetite is expected to use in sintering process.1) Magnetite pellet feed is very fine, and includes 20–30% of Fe(II). It is well known that the use of large amount of fine ore makes the size of agglomerate increase in granulating process. Under fine ore ratio higher than 30 mass% huge agglomerates of over 8 mm increase too mach.2) As the strength of huge agglomerates are low, they Sintering Technology Using Parallel Granulation Process at High Pellet Feed Ratio