Common coal quality analysis items in iron and steel enterprises and standards review

MA Feiyue; ZHENG Yinan; DING Jian

doi:10.3969/j.issn.1007-7677.2025.01.011

Abstract：The coal quality analysis of iron and steel enterprises mainly includes sampling,preparation,and physi-cal and chemical performance analysis and testing of incoming coal and various types of engineering coal in the plant.Currently,the metallurgical industry needs to strengthen its attention to the types of coal used,coal quality analysis items,and testing standards.Therefore,it is of practical significance to systematically organize and evaluate common coal quality analysis items and testing standards in iron and steel enterprises.The types and typical analysis items of four kinds of incoming coal,namely coking coal,blast furnace injection coal,sintering coal,and power plant coal were sorted out,as well as the engineering coal in raw material plants,sintering plants,coking plants,blast fur-nace plants,and power plants.Coal sampling and sample preparation and analysis standards were commented item by item,the testing principles of various national standards,their corresponding relationships with ISO/ASTM stand-ards,main indicators,sample particle size requirements,and sample quality requirements were summarized,in or-der to provide reference for engineering designers and laboratory operators in steel enterprises Finally,it is suggested to confirm the effectiveness of various analysis methods,accurately unify the definition of certain indicators,and for-mulate standards for fully automatic coal sampling and analysis systems as soon as possible.