《商品煤质量炼焦用煤》国家标准修订解读  

Interpretation on the revision of national standards for Commercial coal quality-Coal for coke making

作　　者：白向飞 丁华 BAI Xiangfei;DING Hua(China Coal Research Institute Corporation Ltd.,Beijing 100013,China;National Energy Technology&Equipment Laboratory of Coal Utilization and Emission Control,Beijing 100013,China;Beijing Key Laboratory of Coal Based Carbon Materials,Beijing 100013,China;CCTEG Low-carbon Technology Institute,Beijing 100013,China)

机构地区：[1]煤炭科学技术研究院有限公司,北京100013 [2]国家能源煤炭高效利用与节能减排技术装备重点实验室,北京100013 [3]煤基节能环保炭材料北京市重点实验室,北京100013 [4]中国煤科低碳技术研究院,北京100013

出　　处：《煤质技术》2024年第6期14-22,共9页Coal Quality Technology

基　　金：国家市场监督管理总局标准技术管理专项基金资助项目。

摘　　要：炼焦煤是我国钢铁工业的基础原料,也是国内市场重要的大宗商品,其质量标准关系到煤炭生产、物流、应用和市场监管各个环节,也关系到中国稀缺炼焦煤资源的充分合理利用问题。GB/T 397-2022《商品煤质量炼焦用煤》的发布实施,可为中国炼焦商品煤市场监管提供技术依据,有利于合理评价炼焦煤质量、维护正常的商品煤市场秩序,促进炼焦煤资源的合理开发,达到既满足炼焦煤质量监管要求又能满足焦炭和钢铁工业战略需求的目的。论述中国炼焦煤资源分布与生产以及炼焦煤进口数量和质量总体情况,在此基础上讨论炼焦商品煤质量标准的意义及重点技术内容,并分析炼焦商品煤质量标准历次修订的重点内容,着重讨论关于混配煤界定中镜质体反射率的应用问题,指出利用镜质体反射率变异系数指标鉴别商品煤混配现象,比单纯利用标准差指标更有利于中国稀缺炼焦煤资源的合理充分利用。通过分析镜质体最大反射率和随机反射率测试原理及过程,提出今后商品煤镜质体反射率测试应统一采用镜质体随机反射率指标,以降低测试误差及提高测试效率,从而避免不必要的争议和误导。Coking coal is the basic raw material of China’s steel industry and an important commodity in the domestic market.Its quality standards are related to various aspects like coal production,logistics,application and market supervision,as well as the full and rational utilization of China’s scarce coking coal resources.The implementation of GB/T 397-2022“Quality of Commercial Coal for Coking”can provide technical basis for the supervision of China’s coking commodity coal market,which is conducive to the rational evaluation of coking coal quality,maintaining the normal order of the commodity coal market,promoting the rational development of coking coal resources,achieving the goal of meeting both the quality supervision requirements of coking coal and the strategic needs of the coke and steel industries.The distribution and production of coking coal resources in China were discussed,as well as the overall situation of the quantity and quality of coking coal imports.Based on this,the significance and key technical content of coking commodity coal quality standards were discussed too,and the key content of each revision of coking commodity coal quality standards were analyzed.Focusing on the application of vitrinite reflectance in the definition of blended coal,it is pointed out that using the vitrinite reflectance coefficient of variation index to identify the phenomenon of blended coal in commercial coal is more conducive to the rational and full utilization of China’s scarce coking coal resources than simply using the standard deviation index.By analyzing the principles and processes of maximum reflectance and random reflectance testing of vitrinite,it is proposed that in the future,vitrinite random reflectance indicators should be uniformly used for vitrinite reflectance testing of commercial coal to reduce testing errors and improve testing efficiency,thereby avoiding unnecessary disputes and misleading information.

关 键 词：商品煤质量 炼焦煤 标准修订 镜质体反射率 变异系数 

分 类 号：TQ522[化学工程—煤化学工程]