垃圾焚烧厂污泥干化除臭系统的优化探讨

Discussion on optimization of a deodorization system for sludge drying in a waste incineration plant

针对污泥协同垃圾焚烧项目污泥干化系统产生的臭气,从不凝结尾气和环境臭气2个方面对臭气的收集和处理方式进行了论述。实际工程应用案例表明:臭气的重点泄漏位置包括干化机的端部轴承、尾气风机轴承、干污泥输送设备及臭气管道接口。改善污泥干化厂房运行环境的有效措施包括吸风口合理布置、污泥和臭气负压输送、厂房换气次数提高、回风管路设置。

In view of the odor produced by a sludge drying system in a sludge and waste incineration plant,the collection and treatment methods of the odor were discussed from two aspects:the non-condensing exhaust and the environmental odor in the sludge drying workshop.The engineering applications showed that the key leak points distributed at the end bearing of the dryer,the bearing of the exhaust fan,the conveying equipment for the day sludge,and the interface of the gas pipeline.The operation environment of the sludge drying workshop can be effectively improved by the reasonable piping layout,negative pressure transportation of sludge and odor,increasing ventilation frequency in the workshop and setting an air return system.