Page 336 - 《环境工程技术学报》2023年第1期
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Vol.13,No.1                        环 境 工 程 技 术 学 报                                  第 13 卷,第 1 期
            Jan.,2023                      Journal of Environmental Engineering Technology         2023 年 1 月

            李佩诗,段文军,吴沁停,等.高炉渣质能耦合处理系统的综合评             价  [J].环境工程技术学报,2023,13(1):332-339.
            LI  P  S,DUAN  W  J,WU  Q  T,et  al.Comprehensive  evaluation  of  a  mass-energy  coupling  treatment  system  for  blast  furnace  slag[J].Journal  of
            Environmental Engineering Technology,2023,13(1):332-339.

                             高炉渣质能耦合处理系统的综合评价


                                            李佩诗,段文军 ,吴沁停,宋慧聪
                                                            *
                                                     东北大学冶金学院
            摘要 提出了一种新型的高炉渣质能耦合处理系统,实现了高炉渣余热的高效回收和渣中组分的高附加值利用。采用生命周期
            评价和生命周期成本方法,分别计算出系统的环境影响和经济成本,并对其资源能源消耗进行核算。通过主要贡献者的识别,追
            溯系统在环境影响、经济成本以及资源能源消耗方面的主要来源;通过综合表现评估以及敏感性分析,确定系统优化的关键单
            元。此外,基于系统特性分析了其在环境、能源以及经济方面的效益。结果表明:1)系统的环境影响主要是全球变暖(贡献率为
            47.68%),经济成本主要是内部成本(贡献率           为  91.89%),资源能源消耗主要是非能源资源(贡献率            为  98.57%);2)系统优化的关
            键单元是预处理,关键输入         是  HCl;3)充分考虑系统特性后,处       理  1  高炉渣 的  CO 净排放量为−6 098.68 kg,净能耗为−682.68
                                                                t
                                                                           2
            MJ,经济成本    为  2 078.2 元。
                              4
            关键词 高炉渣;生命周期评价;资源与能源消耗;生命周期成本;节能减排
            中图分类号:X57    文章编号:1674-991X(2023)01-0332-08  doi:10.12153/j.issn.1674-991X.20210834

                             Comprehensive evaluation of a mass-energy coupling
                                      treatment system for blast furnace slag

                                    LI Peishi,  DUAN Wenjun ,  WU Qinting,  SONG Huicong
                                                          *
                                            School of Metallurgy, Northeastern University
            Abstract A  novel  mass-energy  coupling  treatment  system  for  blast  furnace  slag  was  proposed,  which  realized
            efficient recovery of waste heat in slag and high value-added utilization of slag components. The methods of life
            cycle assessment and life cycle cost were adopted to calculate the environmental impact and economic cost of the
            system.  The  resource  and  energy  consumption  included  were  also  calculated.  Main  sources  in  terms  of
            environmental impact, economic cost and resource and energy consumption of the system were traced through the
            identification  of  main  contributors.  The  key  elements  to  system  optimization  were  determined  through  the
            comprehensive performance evaluation and sensitivity analysis. Besides, the environmental, energy and economic
            benefits of the system were analyzed based on its characteristics. The results showed that: 1) The environmental
            impact  of  the  system  was  mainly  global  warming  (with  a  contribution  rate  of  47.68%),  the  economic  cost  was
            mainly  internal  cost  (with  a  contribution  rate  of  91.89%),  and the  resource  consumption  was  mainly  non-energy
            resources (with a contribution rate of 98.57%). 2) The key unit to system optimization was pretreatment and the key
            input was HCl. 3) For each ton of slag treated, the net CO  emission was −6 098.68 kg, the net energy consumption
                                                             2
            was −682.68 MJ and the economic cost was 2 078.24 yuan after a full consideration of system characteristics.
            Key words blast  furnace  slag;  life  cycle  assessment;  resource  and  energy  consumption;  life  cycle  cost; energy
            conservation and emission reduction

                                                                                                     [2]
                钢铁工业是我国国民经济的支柱产业,也是高                           生产原料。我国高炉渣的年产量约                为  3  亿  t 。尽管
            能耗、高排放行业。高炉渣作为钢铁工业的主要副                             当前的高炉渣利用率不断提升,但所制得的多是低
            产品,其排出温度         为  1 723~1 823 K ,蕴含丰富的           附加值产品,且对高炉渣的利用能力有限。同时,由
                                             [1]
            余热资源,并含有大量有价组分,可用作其他产品的                            于产量基数过大,仍有大量高炉渣未被有效利用。


            收稿日期:2021-12-16
            基金项目:国家自然科学基金项目(51704071);中央高校基本科研业务专项(N2025006,N2124007-1,N2124001);国家级大学生创新创业训练计划
                   项目(S202110145147)
            作者简介:李佩   诗  (2001—),女,研究方向为固体废物高值化利用,20192607@stu.neu.edu.cn
            * 责任作者:段文  军  (1988—),男,副教授,博士,研究方向为固体废物高值化利用,duanwenjun@mail.neu.edu.cn
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