In order to promote the energy-saving & emission-reducing and resource recycling in the flexible packaging industry, we chose a dry lamination machine using ethyl acetate as the solvent of adhesives, and studied the processes of exhaust gas purification, solvent recovery and solvent dehydration, in which the combined technologies of adsorption concentration + condensation recovery and the separation technology of pervaporation membranes were applied. The results showed that these technologies are very suitable for the solvent recovery and solvent dehydration of dry lamination machines, and that test devices have the advantages such as high solvent recovery efficiency, good solvent purity, safe and reliable operation, etc.%为了促进企业开展节能减排和资源回用,在车间选取了一条干式复合线进行废气净化和溶剂回收及利用工艺研究,使用乙酸乙酯作为粘胶剂的稀释剂,废气净化和溶剂回收采用吸附浓缩+冷凝回收工艺,溶剂脱水提纯采用渗透汽化膜分离工艺.结果表明,这两种工艺组合十分适合干式复合线的溶剂回收和溶剂脱水提纯,处理装置具有溶剂回收率高、纯度好、运行安全可靠等特点.
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