该项目拜耳异氰酸酯和聚醚项目MDI联合装置罐区19台碳钢罐及6台不锈钢罐防腐，碳钢底板运到防腐场地进行抛丸除锈（对于抛丸设备不能施工的构件采用喷铜矿砂除锈）、油漆涂刷，油漆完好后运到施工现场。碳钢贮罐除锈级别达到Sa2.5级，贮罐防腐为3号系统（system 3），分底漆，中间漆和面漆三层涂装，喷涂Barrier 77环氧富锌底漆厚度80微米，喷涂Penguard Express MIO快干型环氧云铁中间漆100微米，喷涂Futura AS可复涂聚氨酯面漆60微米，干漆膜厚度为240微米；不锈钢（保温）贮罐为4号系统（system 4），分环氧清漆、快干型环氧云铁中间漆和可复涂聚氨酯面漆面漆三层涂装，涂层总干膜厚度不低于200微米。This project, Bayer Isocyanate & PET Project MDI Train-Tank Farm has nineteen carbon steel tanks and six stainless steel tanks to be antisepsis. The soleplates of carbon steel should be carried to the anti-corrosive place to do blast cleaning and painting (the components that can’t be derusted by the abrator should be derusted by blasting copper ore). Carry it to the construction scene after primary coat finished. Then, barrior paint and finish coat shall be covered when pressure has been tested and qualified(carbon steel tanks below 120℃). Below 120℃, the carbon steel tanks with derusting rating Sa2.5 is System 3. It should be covered with three coats including primary coat, barrior paint and finish coat. The epoxy zinc-rich primer should be thick 80μm, Penguard Express MIO quick drying Epoxy mio barrior paint should be 100μm thick, Futura AS polyurethane finish coat should be 60μm thick. The dry coating should be 240μm thick. Stainless steel tanks below 120℃ is System 4. They should be covered with three coats. They are epoxy varnish, quick drying Epoxy mio barrior paint, polyurethane finish coat. The total thickness of the dry coating can’t be less than 200μm.
3.0 编制依据PREFERENCES
3.1拜耳规定CSA0056-Corrosion Protection
Bayer Regulation CSA0056-Corrosion Protection
3.2拜耳规定BISS-ES-50-001
Bayer Regulation BISS-ES-50-001
3.3 工程设计图纸Figures of the Project Design
3.4 DIN EN ISO12944
