朱愉洁,韩元,柳少卿,贾相如

• 1:内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司
• 2:内蒙古工业大学能源与动力工程学院

摘要(Abstract)：

生物质含有较多碱金属元素，在燃烧过程中会产生较严重的结渣问题；煤矸石是一种大宗固体废弃物，迫切需要对其进行资源化利用。为解决生物质燃烧结渣和煤矸石利用问题，使用煤矸石作为添加剂，将其与葵花秸秆混合燃烧。采用热重分析（TG-DTG）、电感耦合等离子光谱发生仪（ICP-AES）、灰熔融点测定仪等测试手段对燃烧后的灰样进行理化特性分析，考察温度、配比对混合燃料燃烧性能和结渣的影响。研究结果表明：在葵花秸秆燃烧过程中，加入少量的煤矸石，葵花秸秆灰中的碱金属含量明显升高，并更多地转化为高熔点的硅铝酸盐固定在灰样中，进入气相的碱金属含量减少，从而降低燃烧的结渣倾向；同时葵花秸秆会降低煤矸石的着火点温度和燃尽温度，从而促进煤矸石的燃烧，二者协同作用明显；当煤矸石添加质量分数为20%时，燃料的可燃性指数达到9.36×10~(-4)%/(min·℃)，综合燃烧特性指数达到42.6×10~(-7)%/(min~2·℃~3)，燃烧性能最佳，软化温度达到1470℃，极大地降低了结渣倾向。

关键词(KeyWords)： 葵花秸秆;煤矸石;混合燃烧;结渣;熔融特性

Abstract:

Keywords:

基金项目(Foundation): 内蒙古电力（集团）有限责任公司内蒙古电力科学研究院分公司2023年院自筹（一批）科技项目（2023-ZC-11） ~~

作者(Author): 朱愉洁,韩元,柳少卿,贾相如

DOI: 10.19666/j.rlfd.202408185

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