铁路涂装作业漆雾预处理方式探讨

Discussion on Pretreatment of Paint Mist in Railway Painting

铁路涂装作业产生的涂装废气会对人体健康和环境造成危害,基于涂装废气治理系统的阐述,探讨适用于铁路涂装废气组合治理方式(吸附浓缩+热氧化还原法)的漆雾预处理方式。通过水帘喷漆室、无泵水幕喷漆室、水旋喷漆室等湿式预处理方式与纸板漆雾过滤器、玻璃纤维棉、袋式过滤器等干式预处理方式的对比,结合生产实际,推荐采用折流、沉降、吸附组合的干式预处理方式。使用多级过滤(G4+F5+F7),过滤效果可达到F7~F9级别,有效保护净化吸附材料,延长其使用时间,达到减少净化装置的维护频次、降低投资成本的目的。

The painting exhaust gas generated by railway painting operations can cause harm to human health and the environment.Based on the description of the painting exhaust gas treatment system,the paint mist pretreatment method(adsorption concentration+thermal redox method)suitable for the combined treatment of railway painting exhaust gas is discussed.Through the comparison of wet pretreatment method of water curtain spray room,pump free water curtain spray room,water spinning spray room and dry pretreatment method of cardboard paint mist filter,glass fiber cotton and bag filter,combined with the actual production,this paper recommends to adopt the combined dry pretreatment method of baffling,sedimentation and adsorption.Using multi-stage filtration(G4+F5+F7),the filtration effect can reach F7-F9 level,so as to effectively protect the purification adsorption material and prolong its service time,so as to reduce the maintenance frequency of purification device and reduce the investment cost.