工程科学学报，第38卷，第10期：1386-1392,2016年10月 Chinese Journal of Engineering,Vol.38,No.10:1386-1392,October 2016 D0l:10.13374/j.issn2095-9389.2016.10.006:http://journals..ustb.edu.cn 利用显热对熔渣进行直接改质的热平衡分析及试验 验证 卢翔2》，李宇12，马帅12》，代文彬2》，苍大强2》 1)北京科技大学钢铁治金新技术国家重点实验室，北京1000832)北京科技大学治金与生态工程学院，北京100083 ☒通信作者，E-mail:leeuu00@sina.com 摘要采用热态改质方法可直接将冶金熔渣制备成高附加值材料，从而实现熔渣的“热”“渣”双利用，因此这一方法在熔 渣资源化利用领域中已成为研究热点.本文选取熔融钢渣和河沙分别为典型熔渣和改质剂，模拟计算分析在1600℃熔渣内 参入改质剂的过程中改质剂掺量对改质熔渣显热的影响，并对研究结果进行工业试验验证.研究表明：随着改质剂摻入，改 质熔渣显热呈现先增加后减小的趋势：随改质剂掺量由5%增加到11%时改质熔渣显热反而增加，当改质剂摻量为11%时改 质熔渣显热达到最大.从熔渣显热利用和改质效果综合考虑，改质剂摻量的理论最佳区间为11%~19%.现场试验表明，摻 入12%左右的河沙后，改质熔渣流动性好，冷却渣安定性等性能改善显著. 关键词熔渣：显热；改质：热平衡：工业试验 分类号TF141 Thermal equilibrium analysis and experiment of molten slag modification by use of its sensible heat LU Xiang',LI Yu,MA Shuai,DAI Wen-bin!),CANG Da-qiang 1)State Key Laboratory of Advaneed Metallurgy,University of Science and Technology Beijing,Beijing 100083,China 2)School of Metallurgy and Ecological Engineering,University of Science and Technology Beijing.Beijing 100083,China Corresponding authors,E-mail:leeuu00@sina.com ABSTRACT Preparing high added-value materials from molten slag directly by modifying molten slag has drawn a great interest in the utilization of molten slag because of its high efficiency during the integrated utilization of the heat and slag.In this paper,molten steel slag and sands were selected as typical molten slag and modifiers,respectively.The effects of the amount of added modifiers on the waste liquid sensible heat of modified molten slag were studied during the modification process,which was subsequently confirmed by industrial test.It is indicated that the sensible heat of modified molten slag increases at first and then decreases with the addition of modifiers.The sensible heat improves with the increase in mass fraction of modifiers from 5%to 11%and reaches the maximum at the mass fraction of 11%.The optimal amount of modifiers ranges from 11%to 19%in consideration of both the utilization of sensible heat and the performance of modified molten slag.Furthermore,the industrial test verifies that both the fluidity of modified molten slag and the stability of cooled modified slag are significantly improved at the addition of about 12%modifiers. KEY WORDS molten slag;sensible heat:modification;thermal equilibria:industrial test 2014年世界粗钢产量为16.37×10°t,而中国的按照钢渣与高炉渣分别占粗钢产量的15%和30%计 粗钢产量为8.23×10°t,占世界产量的一半以上0. 算，钢渣与高炉渣（不考虑国内电炉炼钢）的排放量分 收稿日期：201605-14 基金项目：“十三五”国家重点研发计划资助项目(2016YFB0601304):国家留学基金资助项目(201406465049)工程科学学报，第 38 卷，第 10 期: 1386--1392，2016 年 10 月 Chinese Journal of Engineering，Vol． 38，No． 10: 1386--1392，October 2016 DOI: 10． 13374 /j． issn2095--9389． 2016． 10． 006; http: / /journals． ustb． edu． cn 利用显热对熔渣进行直接改质的热平衡分析及试验 验证 卢 翔1，2) ，李 宇1，2) ，马 帅1，2) ，代文彬1，2) ，苍大强1，2) 1) 北京科技大学钢铁冶金新技术国家重点实验室，北京 100083 2) 北京科技大学冶金与生态工程学院，北京 100083  通信作者，E-mail: leeuu00@ sina． com 摘 要 采用热态改质方法可直接将冶金熔渣制备成高附加值材料，从而实现熔渣的“热”“渣”双利用，因此这一方法在熔 渣资源化利用领域中已成为研究热点． 本文选取熔融钢渣和河沙分别为典型熔渣和改质剂，模拟计算分析在 1600 ℃ 熔渣内 掺入改质剂的过程中改质剂掺量对改质熔渣显热的影响，并对研究结果进行工业试验验证． 研究表明: 随着改质剂掺入，改 质熔渣显热呈现先增加后减小的趋势; 随改质剂掺量由 5% 增加到 11% 时改质熔渣显热反而增加，当改质剂掺量为 11% 时改 质熔渣显热达到最大． 从熔渣显热利用和改质效果综合考虑，改质剂掺量的理论最佳区间为 11% ～ 19% ． 现场试验表明，掺 入 12% 左右的河沙后，改质熔渣流动性好，冷却渣安定性等性能改善显著． 关键词 熔渣; 显热; 改质; 热平衡; 工业试验 分类号 TF141 Thermal equilibrium analysis and experiment of molten slag modification by use of its sensible heat LU Xiang1，2) ，LI Yu1，2)  ，MA Shuai1，2) ，DAI Wen-bin1，2) ，CANG Da-qiang1，2) 1) State Key Laboratory of Advanced Metallurgy，University of Science and Technology Beijing，Beijing 100083，China 2) School of Metallurgy and Ecological Engineering，University of Science and Technology Beijing，Beijing 100083，China  Corresponding authors，E-mail: leeuu00@ sina． com ABSTＲACT Preparing high added-value materials from molten slag directly by modifying molten slag has drawn a great interest in the utilization of molten slag because of its high efficiency during the integrated utilization of the heat and slag． In this paper，molten steel slag and sands were selected as typical molten slag and modifiers，respectively． The effects of the amount of added modifiers on the waste liquid sensible heat of modified molten slag were studied during the modification process，which was subsequently confirmed by industrial test． It is indicated that the sensible heat of modified molten slag increases at first and then decreases with the addition of modifiers． The sensible heat improves with the increase in mass fraction of modifiers from 5% to 11% and reaches the maximum at the mass fraction of 11% ． The optimal amount of modifiers ranges from 11% to 19% in consideration of both the utilization of sensible heat and the performance of modified molten slag． Furthermore，the industrial test verifies that both the fluidity of modified molten slag and the stability of cooled modified slag are significantly improved at the addition of about 12% modifiers． KEY WOＲDS molten slag; sensible heat; modification; thermal equilibria; industrial test 收稿日期: 2016--05--14 基金项目: “十三五”国家重点研发计划资助项目( 2016YFB0601304) ; 国家留学基金资助项目( 201406465049) 2014 年世界粗钢产量为 16. 37 × 109 t，而中国的 粗钢产量为 8. 23 × 109 t，占世界产量的一半以上［1］． 按照钢渣与高炉渣分别占粗钢产量的 15% 和 30% 计 算，钢渣与高炉渣( 不考虑国内电炉炼钢) 的排放量分