凹版印刷工业的绿色节能技术

针对当前凹版印刷设备存在的耗能大、尾气排放污染等问题,通过对凹版印刷机热风干燥系统节能、印刷有机废气(VOCs)综合治理和凹印企业主要热源余热循环利用等主要相关技术的探讨,提出了切实可行的节能减排方案.在此基础上,进一步将热力燃烧式氧化器与热水二段型溴化锂机组相结合,解决了热力燃烧式氧化器运行成本较高的问题.研究结果表明,从热风干燥系统、有机废气综合利用、主要热源余热循环利用3个方面入手实施的节能减排方案,可以降低凹版印刷工业运行能耗的20%~40%.

Green Energy-Saving Technology in Gravure Press

In order to deal with the problems such as high energy consumption in gravure printing equipments and pollution from exhaust gas emission, the solutions to energy saving in gravure press hot air drying, process of comprehensive govern volatile organic compounds (VOCs) as well as recycling use of major equipments and techniques were studied based on waste heat from heat source in gravure printing enterprises. The practical schemes for energy conservation and emission reduction were put forward. The integration of thermal combustion oxidation devices and hot water two section type lithium bromide absorption chiller machines to reduce the high cost of thermal combustion oxidation devices were also researched. The results showed that the printing enterprises could save up to 20%~40% operation power in three aspects, namely, hot air drying system, integrated use of organic exhaust gas and recycling of waste heat from heat source.