期刊
ENERGIES
卷 14, 期 22, 页码 -出版社
MDPI
DOI: 10.3390/en14227561
关键词
rotary kiln; hazardous waste treatment; slagging phenomena; characterization methods; mechanism analysis
资金
- National Natural Science Foundation of China [51736010]
The study analyzes and discusses the slagging phenomena in different parts of the rotary kiln incineration system, pointing out that the adhesion of low-melting alkali metal salts and the solidification of molten/semi-molten fly ashes are the key factors causing slagging in the system.
Rotary kiln incineration technology has the advantages of strong material adaptability and a simple treatment process and has been widely used in hazardous waste treatment. However, the actual incineration process has caused problems such as ring formation in the treatment system due to the lack of research on the slagging mechanisms. In this paper, slagging phenomena occurring in the second half of the rotary kiln, the exit flue of the secondary combustion chamber, and the wall of the quench tower are analyzed and discussed in detail through characterization methods. The results indicate that the adhesion of low-melting alkali metal salts on the refractory surface in the second half of the rotary kiln is the key factor in forming the initial slagging layer. In the growth process of the slagging ring, the formed liquid phase can bond incineration residues of different sizes together and form a dense embryo body through liquid phase sintering. The deposition and solidification of molten/semi-molten fly ashes cause slagging formation in the exit flue of the secondary combustion chamber. The slagging phenomenon occurring in the inner wall of the quench tower belongs to the crystalline-coalesce-hardening process of the inorganic salts precipitating out of the high-salt wastewater.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据