Open AccessExperimental research with the help of thermal derivatographic analysis on coal powder that can be blowed in the furnace
Author(s) -
V. Caloian,
E. M. Vlad,
Victor Oancea,
Mircea Hritac,
Elisa Plopeanu,
C. Pandelescu,
Valeriu Rucai,
N. Constantin
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1781/1/012065
Subject(s) - blast furnace , coal , coke , metallurgy , slag (welding) , waste management , environmental science , casting , process engineering , materials science , engineering
In an integrated steel flow, the costs related to the consumption of metallurgical coke represent approx. 25% of the production cost of the shards obtained by continuous casting. As the price of coal returns to about 50% of that of coke, the technology of insufflating coal dust at the blast furnaces mouths, which transfers the coking process to the blast furnace, can reduce the cost of slag by 4-5%. It cannot be used to blow into the furnace any type of coal. The coal used must meet certain requirements, based on its physical and chemical properties. By thermo-derivatographic analysis, important properties of coals can be established. The authors present in this paper the results of thermal derivatographic analyzes performed on certain types of coal.