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Research on Technologies of Compensatory Heating and Cover Insulation for Hot Metal Ladles under a Low-carbon Background and Their Applications
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Dayong XU1, 2, Shoubin SUN1, 2, Guangyu MA1, 2, Changpeng LIU1, 2, Yu ZHAO1, 2
Angang Technology | 2026, (2) : 31 - 37
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Angang Technology | 2026, (2): 31-37
• Green and Low-carbon Column (Ⅱ) •
Research on Technologies of Compensatory Heating and Cover Insulation for Hot Metal Ladles under a Low-carbon Background and Their Applications
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Dayong XU1, 2, Shoubin SUN1, 2, Guangyu MA1, 2, Changpeng LIU1, 2, Yu ZHAO1, 2
Affiliations
  • 1.State Key Laboratory of Metallic Materials for Marine Equipment and Applications, Anshan 114009, Liaoning, China
  • 2.Ansteel Iron & Steel Research Institutes, Anshan 114009, Liaoning, China
doi: 10.3969/j.issn.1006-4613.2026.02.004
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In the long-process steelmaking system, the proportion of carbon emissions is extremely high. Therefore, the development of green and low-carbon technologies in ironmaking is crucial for emission reduction. In allusion to the significant heat loss during the transportation of hot metal ladle without cover insulation, the composition of such heat loss and the corresponding actual carbon emissions were analyzed. A comparative analysis was carried out on the energy-saving and emission-reduction effects of hot metal ladle for heat compensation and ladle covering for heat preservation. The results showed that both methods could increase the molten iron temperature by more than 30 ℃. Empirical applications of these two methods and the achieved carbon emission reduction results indicated that applying cover insulation during hot metal ladle empty period was the most effective measure, which was more conducive to emission reduction. Moreover, it significantly reduced heat loss and carbon emissions with almost no external energy supply. Compensatory heating served as a supplement and auxiliary measure to cover insulation, could realize the self-circulation of blast furnace gas within the traditional blast furnace ironmaking process, which was of great significance for carbon emission reduction.

low-carbon  /  hot metal ladle  /  insulation  /  compensatory heating  /  cover insulation
Dayong XU, Shoubin SUN, Guangyu MA, Changpeng LIU, Yu ZHAO. Research on Technologies of Compensatory Heating and Cover Insulation for Hot Metal Ladles under a Low-carbon Background and Their Applications[J]. Angang Technology, 2026 , (2) : 31 -37 . DOI: 10.3969/j.issn.1006-4613.2026.02.004
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Year 2026 volume Issue 2
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doi: 10.3969/j.issn.1006-4613.2026.02.004
  • Online Date：2026-06-03
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  • Revised：2025-09-22
Affiliations
    1.State Key Laboratory of Metallic Materials for Marine Equipment and Applications, Anshan 114009, Liaoning, China
    2.Ansteel Iron & Steel Research Institutes, Anshan 114009, Liaoning, China
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表12种不同金属材料的力学参数
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
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