PDF
Full
Outline
The old horse of 7# blast furnace of Baotou Steel is deeper. In order to shorten the project duration and reduce workload of removing residual slag iron in furnace hearth after blowing out, the mode of dropping stockline and discharging residual liquid iron is adopted. It is one of the most important links in blowing out operation of blast furnace to discharge residual liquid iron and its effect directly affects the clearance time of furnace hearth. In the paper, the process of discharging residual liquid iron for 7# blast furnace of Baotou Steel during blowing out is mainly introduced. The previous preparation work mainly includes such as activating furnace hearth, confirming position of residual liquid iron notch, calculating amount of residual liquid iron and making residual liquid iron runner. The cutting of shell of blast furnace and cooling stave, manufacture of mud sleeve for residual liquid iron notch as well as the whole process of discharging residual liquid iron after blowing out are introduced in detail. The process of discharging residual liquid iron of 7# blast furnace is safe and ordered. After blowing out, it is found that there is basically no residual iron in the furnace hearth when cleaning it, which indicates that the effect of discharging residual liquid iron this time is good and experiences are gathered for discharging residual liquid iron in future heavy and medium repairs of blast furnace.
PDF
114
49
| 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
