PDF
Full
Outline
The basicity is an important chemical index of blast furnace slag and it plays a decisive role in the trouble-free operations of blast furnace ironmaking. In this paper, the effects of basicity on rheological behavior of blast furnace slag of Baotou Steel are studied under N2 atmosphere with slag specimen prepared by pure chemical reagent based on the slag of 4# blast furnace of Baotou Steel. Moreover, the rules of melting behavior for blast furnace slag with basicity of slag changes are analyzed. The results showed that the melting temperature, viscosity and activation energy of viscous fluid flow of blast furnace slag of Baotou Steel were first decreased and then increased as well as fluidity and thermal stability of slag became better first and then worse when basicity of slag was increased from 1.00 to 1.30. With the basicity of slag increases, the softening temperature, hemispherical temperature and flow temperature of blast furnace slag tend to be increased, which are conducive to moving down of softening zone of blast furnace in the process of ironmaking and promoting development of indirect reduction in blast furnace. It is suggested that the basicity of blast furnace slag of Baotou Steel should be controlled within the range of 1.10~1.20 through overall consideration of the effect laws of basicity of slag on viscous and melting behaviors of blast furnace slag of Baotou Steel.
PDF
151
73
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
