摘要
生活垃圾焚烧飞灰、危险废物焚烧飞灰和底渣等焚烧残余物属于危险废物,采用熔融玻璃化工艺处理焚烧残余物是实现危险废物无害化、减量化及资源化的最佳终端解决方式。本文介绍了我国现阶段焚烧残余物产出及处置技术现状,以及玻璃侵蚀机理及玻璃组成体系对玻璃化学稳定性的影响,回顾了危险废物熔融技术发展历程,分别介绍了电热式、燃料式熔融技术原理和应用案例,并结合我国焚烧残余物组成特征及区域产出差异特点,提出了选择电阻式熔融工艺及侧吹浸没式熔融工艺的建议。
Incineration residues such as MSW incineration fly ash,fly ash and bottom ash from hazardous waste incinerators are hazardous wastes defined,and melting and vitrification process is the best way to treat incineration residues,realizing hazardous waste harmless treatment,minimizing and recycling.This paper introduced the current situation of production and disposal technology of incineration residues in China,the mechanism of glass erosion and the influence of glass composition system on the chemical stability of glass.This paper also reviewed the development of hazardous waste melting technology,and introduced the principles and application cases of electrothermal type and fuel type melting technology.Combined with the composition characteristics and regional output differences of incineration residues in China,resistance melting process and side-submerged combustion smelting process were suggested to be adopted.
出处
《有色冶金节能》
2021年第6期26-33,54,共9页
Energy Saving of Nonferrous Metallurgy
关键词
飞灰
危险废物
垃圾焚烧
玻璃化
玻璃侵蚀机理
电阻式熔融
等离子体熔融
侧吹浸没式熔融
fly ash
hazardous waste
waste incineration
vitrification
mechanism of glass erosion
resistance melting
plasma melting
side-submerged combustion
