化学组成对高钙垃圾焚烧飞灰熔融性的影响研究  

Research on the Effect of Chemical Composition on the Fusibility of High-Calcium MSWI Fly Ash

作　　者：张瑞娜 赵由才[2] 夏旻 余召辉 陈善平 邰俊 夏发发 Zhang Ruina;Zhao Youcai;Xia Min;Yu Zhaohui;Chen Shanping;Tai Jun;Xia Fafa(Shanghai Institute for Design ＆ Research on Environmental Engineering,Shanghai 200232;State Key Laboratory of Pollution Control and Resource Reuse,School of Environmental Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]上海市环境工程设计科学研究院有限公司,上海200232 [2]同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室,上海200092

出　　处：《广东化工》2018年第16期73-75,共3页Guangdong Chemical Industry

基　　金：上海市科学技术委员会科研计划课题(No.16DZ1202901)

摘　　要：焚烧飞灰熔融固化技术具有减容显著、残渣无害可资源化等特点,逐渐成为未来飞灰处置的重点发展方向。本论文以某高钙飞灰为研究对象,以熔融流动温度为指标,分析了飞灰化学组成对其熔融性的影响,并研究了石英、玻粉等添加剂对降低飞灰熔融温度的作用。结果表明,飞灰中CaO、SiO_2组分对熔融温度影响最为显著,Al_2O_3、Fe_2O_3次之。添加30~35 wt.%石英、45~55 wt.%玻粉、10~15wt.%Al_2O_3或灰渣比(0~3)︰20均能显著降低熔融流动温度,能够实行飞灰有效熔融处置,降低能耗。The vitrification treatment has become the key development emphases of MSWI fly ash disposal, for the dominant position on volume reduction, harmlessness, resource conversion. High-calcium fly ash was used in this study, to investigate the effect of chemical composition on the fusibility of MSWI fly ash. Quartz, glass powder, alumina, and bottom ash were also tried to reduce the flow temperature. It indicated that CaO and SiO2 played important role on the fusibility, while Al2O3 and Fe2O3 were inferior. The dosages of 30~35 wt.% quartz, 45~55 wt.% glass, 10~15 wt.% Al2O3, or the weight ratio of（0~3）︰20 for fly ash to bottom ash all can reduce the flow temperature remarkably, which means the less energy consume and more feasible for vitrification treatment.

关 键 词：生活垃圾焚烧飞灰 化学组分 熔融性 流动温度 

分 类 号：X705[环境科学与工程—环境工程]