有机醇胺TEA-M-无机盐体系对固硫灰渣活性激发的影响

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (2): 572-583.

所属专题：资源综合利用

有机醇胺TEA-M-无机盐体系对固硫灰渣活性激发的影响

伍媛婷¹, 王媛晨¹, 王昭¹, 刘虎林¹, 王巍², 任思谦², 花春峰²

1.陕西科技大学材料科学与工程学院,西安 710021;
2.陕西正元环保科技产业(集团)有限公司,西安 712085

收稿日期:2023-04-01 修订日期:2023-06-21 出版日期:2024-02-15 发布日期:2024-02-05
作者简介:伍媛婷(1981—),女,博士,教授。主要从事纳米复合材料和能源固体材料处理技术的研究。E-mail:wuyuanting@sust.edu.cn
基金资助:
陕西高校青年创新团队项目(2022-70);混凝土超细掺合料项目(210200148)

Effect of Organic Ethanolamine TEA-M-Inorganic Salt System on Activation of FBC

WU Yuanting¹, WANG Yuanchen¹, WANG Zhao¹, LIU Hulin¹, WANG Wei², REN Siqian², HUA Chunfeng²

1. School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China;
2. Shaanxi Zhengyuan Environmental Protection Technology Industry (Group) Co., Ltd., Xi'an 712085, China

Received:2023-04-01 Revised:2023-06-21 Online:2024-02-15 Published:2024-02-05

摘要/Abstract

摘要： 固硫灰渣的处理以及环保型激发剂材料的开发是防止环境二次污染的有效途径。本文开发了一种有机醇胺TEA-无机激发剂M-无机盐复合激发剂,通过SEM、FTIR、XRD等测试方法对所制备的复合激发剂进行表征,先后探索了M、TEA-M、TEA-M-无机盐三个系列的激发剂对水泥胶砂流动度比和抗压活性指数的影响。结果表明,TEA的助磨作用改善了颗粒的粒径,无机激发剂M能影响参与水化反应的Ca(OH)₂含量,无机盐CaSiO₃后期会产生C-S-H并提供碱性条件。复合激发剂中的不同材料间的协同作用使水泥胶砂7和28 d的抗压活性指数分别提高了29个和18个百分点(与空白样相比),并且胶砂净浆的流动度比仍然保持在较高水平。本文为固硫灰渣提供了一种环保型的复合激发剂材料,促进了固硫灰渣的绿色化应用。

关键词: 固硫灰渣(FBC), 水泥掺合料, 激发剂, 有机醇胺, 流动度比, 抗压活性指数

Abstract: The treatment of fluidized bed combustion ash and slag (FBC) and the development of environmentally friendly activator material are the effective way to prevent environmental secondary pollution. An organic ethanolamine TEA-inorganic ethanolamine M-inorganic salt composite activator was developed, and the performance of the material was optimized. And the micromorphology, chemical composition and performance changes of the materials were analyzed by SEM, FTIR, XRD and other characterization methods. The influences of three series of activators, M, TEA-M and TEA-M-inorganic salt on the fluidity ratio and compressive activity index of cement slag were explored. The results show that the grinding effect of TEA improves the particle size. The inorganic activator M can affect the content of Ca(OH)₂ participating in hydration reaction. The inorganic salt CaSiO₃ may produce more C-S-H in the later stage and provide alkaline condition. The synergistic effect of different materials in the composite activator increases the compressive activity index of cement slag by 29 and 18 percentage points at 7 and 28 d (compared with the blank sample), respectively, while maintaining the fluidity ratio of cement mortar at a high level. This study provides an environmentally friendly activator composite material to promote the green application of FBC.

Key words: fluidized bed combustion ash and slag (FBC), cement mixture, activator, organic ethanolamine, fluidity ratio, compressive activity index

中图分类号:

TU528

伍媛婷, 王媛晨, 王昭, 刘虎林, 王巍, 任思谦, 花春峰. 有机醇胺TEA-M-无机盐体系对固硫灰渣活性激发的影响[J]. 硅酸盐通报, 2024, 43(2): 572-583.

WU Yuanting, WANG Yuanchen, WANG Zhao, LIU Hulin, WANG Wei, REN Siqian, HUA Chunfeng. Effect of Organic Ethanolamine TEA-M-Inorganic Salt System on Activation of FBC[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(2): 572-583.

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有机醇胺TEA-M-无机盐体系对固硫灰渣活性激发的影响

Effect of Organic Ethanolamine TEA-M-Inorganic Salt System on Activation of FBC

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