“薄层-线性”二段法污泥干化工艺及工程应用  

Two-stage Sludge Drying Process of Thin Film Dryer & Linear Dryer and Its Engineering Application

作　　者：康启宇 KANG Qiyu(Xi’an Chang’an Infrastructure Construction Co.Ltd.,Xi’an Shaanxi 710100)

机构地区：[1]西安市长安基础建设有限责任公司,陕西西安710100

出　　处：《环境卫生工程》2023年第4期52-56,共5页Environmental Sanitation Engineering

摘　　要：“薄层-线性”二段法污泥干化工艺具有高干出泥(含水率10%~30%)、安全(氧含量<5%)、水分蒸发效率高、设备投资低、运行稳定等特点。介绍了处理量1 442.5 t/d的我国某大型市政污泥处理处置扩建工程的工艺流程、核心设备、工艺设计和调试运行情况,该工程共设10条“薄层-线性”二段法污泥干化线,进泥含水率78%~82%,出泥含水率可达20%~33%,各项性能考核指标和能耗指标均达标。Two-stage sludge drying process by thin film dryer and linear dryer had features of high dry sludge yield(moisture content 10%~30%),safety(oxygen content5%),high water evaporation efficiency,low equipment investment,stable operation and so on.The process flow,core equipment,process design and commissioning operation of a large-scale domestic municipal sludge treatment and disposal project with a capacity of 1 442.5 t/d was introduced.The project was equipped with 10 two-stage sludge drying lines,and the moisture content of feeding sludge was 78%~82%,the outgoing sludge moisture content could reach to 20%~33%.All performance assessment index and energy consumption index were up to standard.

关 键 词：污泥干化 二段法 薄层干化机 线性干化机 

分 类 号：X703[环境科学与工程—环境工程]