典型铁矿山全工序碳排放核算研究  

Research on carbon emission accounting of the whole process of typical iron ore mine

作　　者：邓惠中 陈铁军[1,2] 万军营 周仙霖[1,2] 赵飞 余为 张露 周晓军 DENG Huizhong;CHEN Tiejun;WAN Junying;ZHOU Xianlin;ZHAO Fei;YU Wei;ZHANG Lu;ZHOU Xiaojun(Wuhan University of Science and Technology School of Resources and Environmental Engineering,Wuhan 430081,Hubei,China;Wuhan University of Science and Technology Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources,Wuhan 430081,Hubei,China;WISCO Resources Group,Wuhan 430077,Hubei,China)

机构地区：[1]武汉科技大学资源与环境工程学院,湖北武汉430081 [2]武汉科技大学冶金矿产资源高效利用与造块湖北省重点实验室,湖北武汉430081 [3]武钢资源集团有限公司,湖北武汉430077

出　　处：《烧结球团》2024年第6期120-128,154,共10页Sintering and Pelletizing

基　　金：中国宝武低碳冶金创新基金资助项目(BWLCF202107);湖北省重点研发计划项目(2022BCA062);湖北省教育厅科学研究计划指导性项目(B2022014)。

摘　　要：为了开展矿山企业碳排放的工序核算分析,助力矿山低碳化建设,本文以程潮矿业为我国典型铁矿山案例,通过调研收集能源和设备的现场资料,以矿业企业碳核算行业指南为基础,引入设备需要/利用系数建立额定功率与实际功率的联系到核算过程,并调研单体设备实际运行时间来估算各个系统的用电量,利用碳排放因子法计算得到碳排放量,从而分析对比采矿、选矿、球团各工序及其子系统的碳排放量。结果表明:2021年程潮矿业碳排放量约为179604.15 t,吨铁精矿排放量约为0.057 t CO_(2),吨球团矿排放量约为0.096 t CO_(2),球团工序排放量约为115096.28 t CO_(2),占比达到总排放量的64.08%;从排放源角度考虑,购入电力为主要碳排放源,占比为52.51%,其次是由燃料燃烧产生的碳排放,占比为44.77%,还有少量碳酸盐分解产生的碳排放;从工序子系统角度考虑,采矿工序中提升粗碎系统的碳排放量最大,占采矿工序排放量的37.30%,选矿工序中磨选系统的碳排放量最大,占选矿工序排放量的46.90%,球团工序中焙烧冷却系统的碳排放最大,占球团工序排放量的75.80%。In order to carry out the process accounting analysis of carbon emission of mining enterprises and help the low-carbon construction of mines,Chengchao Mining is taken as a typical iron mine case in China,on-site data of energy and equipment is collected through research,and equipment demand/utilization coefficient is introduced to establish the connection between rated power and actual power to the accounting process based on the carbon accounting industry guidelines for mining enterprises,and the actual operation time of single equipment is investigated to estimate the electricity consumption of each system,and the carbon emission factor method is used to calculate the carbon emission;in this way,the carbon emission of mining,beneficiation,pelletizing processes and their subsystems can be analyzed and compared.The results show that,in 2021,the carbon emission of Chengchao Mining are about 179604.15 t,the emissions per ton of iron concentrate are about 0.057 t CO_(2),the emissions per ton of pellets are about 0.096 t CO_(2),and the emission of pellet process are about 115096.28 t CO_(2),accounting for 64.08%of the total emissions.From the perspective of emission sources,the purchase of electricity is the main source of carbon emission,accounting for 52.51%,followed by carbon emission generated by fuel fuels,accounting for 44.77%,and a small amount of carbon emissions caused by carbonate decomposition.From the perspective of process subsystem,the carbon emission of the lifting and coarse crushing system in the mining process is the largest,accounting for 37.30%of the emission of the mining process,the carbon emission of the grinding system in the mineral processing process is the largest,accounting for 46.90%of the emission of the beneficiation process,and the carbon emission of the roasting and cooling system in the pellet process is the largest,accounting for 75.80%of the emissions of the pellets process.

关 键 词：铁矿山 碳排放核算 碳排放强度 

分 类 号：X16[环境科学与工程—环境科学] TD-9[矿业工程]