Development of Continuous Steelmaking Slag Solidification Process Suitable for Sensible Heat Recovery

被引：3

作者：

Tobo, Hiroyuki ^{[1
]}

Ta, Yasutaka ^{[1
]}

Kuwayama, Michihiro ^{[1
]}

Hagio, Yuki ^{[2
]}

Yabuta, Kazuya ^{[3
]}

Tozawa, Hirokazu ^{[4
]}

Tanaka, Toshihiro ^{[5
]}

Morita, Kazuki ^{[6
]}

Matsuura, Hiroyuki ^{[7
]}

Tsukinashi, Fumitaka ^{[7
]}

机构：

[1] JFE Steel Corp, Steel Res Lab, Chuo Ku, Chiba 2600835, Japan

[2] JFE Steel Corp, East Japan Works, Chiba 2600835, Japan

[3] JFE Steel Corp, Slag Business Planning & Control Dept, Chiba 2600835, Japan

[4] JFE Steel Corp, Technol Planning Dept, Chiba 2600835, Japan

[5] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, Suita, Osaka 565, Japan

[6] Univ Tokyo, Dept Mat Engn, Tokyo 1138654, Japan

[7] Univ Tokyo, Grad Sch Frontier Sci, Tokyo 1138654, Japan

来源：

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 2013年 / 99卷 / 12期

基金：

日本学术振兴会;

关键词：

steelmaking slag; solidification; heat recovery; sensible heat; thickness; BLAST-FURNACE; MOLTEN SLAG;

D O I：

10.2355/tetsutohagane.99.683

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The COURSE50 project aims at developing technologies to reduce CO2 emissions from steel works by approximately 30% in Japan. In order to supply the energy required to separate CO2, a technology for recovering sensible heat from steelmaking slag is being developed as one theme of COURSES. A twin roll type continuous slag solidification process to obtain a shape suitable for sensible heat recovery was investigated. Sheet-like slag was shaped to a thickness of about 7mm in a twin roll pilot-scale experiment. The slag thickness depended on the adhesion of the molten slag rather than the thickness of the solidified slag on the roll. The slag condition suitable for the twin roll method was identified as a liquid phase ratio of 60% or more. Based on a laboratory-scale experiment and heat transfer calculations, a combination process using the twin roll method and a countercurrent flow packed bed is expected to achieve a heat recovery ratio of 30% or more from sheet-like slag.

引用

页码：683 / 692

页数：10

共 27 条

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