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石膏板烘房节能减排技术改造

2016-01-13徐丽华钱惠国

能源研究与信息 2015年2期

徐丽华 钱惠国

摘 要: 节能减排正以越来越严峻的态势成为制约各行业发展的瓶颈,也是促进社会经济发展、走可持续发展是企业求生存的必由之路.目前常用的建材干燥烘房干燥后产生的水分及其汽化潜热随废气排放至大气环境中,既对大气环境造成热污染又浪费了能源.介绍了石膏板的生产工艺,简述了烘房的热平衡测试结果及烟气带走热量的计算结果,提出了采用烘房热交换器冷凝水回收技术的可行性.计算结果表明,该技术具有较好的节能效果,在建材行业中具有较广阔的推广应用前景.

关键词: 烘房; 热平衡测试; 热交换器; 节能减排

中图分类号: TQ 021.3 文献标志码: A

Energy saving and emission reduction technological

transformation of gypsum board drying room

XU Lihua1, QIAN Huiguo2

(1.SaintGobain Gypsum(Shanghai) Co . , Ltd . , Shanghai 201201, China;

2.School of Urban Construction and Safety Engineering, Shanghai

Institute of Technology, Shanghai 201418,China)

Abstract: Energy conservation and emission reduction has turned into a massive barrier in the way of development in every field.Therefore,sustainable development has become a must for the survival of a company.The weakness of the widelyused drying room is that the moisture and its latent heat will be emitted into the air,which is both a thermal pollution and a waste of energy.The manufacturing process of the gypsum board is introduced.The results of the thermal balance test for the drying room and the amounts of heat drawn off by the flue gas are provided.The condensate recovery technology based on the drying room heat exchanger is put forward.The results show that the new technology has a good performance of energy saving and has a broad application prospect in the building materials industry.

Keywords: drying room; thermal balance test; heat exchanger; energy conservation and emission reduction

能源与环境是当今世界的热门课题,它不仅影响本国人民的生存与发展,而且将对人类赖以生存和发展的地球产生影响.节能减排正以越来越严峻的态势成为制约各行业发展的瓶颈,也是促进社会经济发展与资源环境相协调、走可持续发展的必由之路.

在建材、化工等领域的生产加工过程中,其产品常需进行干燥处理,且干燥量大、能耗高.目前常用的建材干燥烘房干燥后产生的水分及其汽化潜热随废气一起排放至大气环境中,既对大气环境造成热污染又浪费了能源.

1 建材石膏板烘房干燥原理

纸面石膏板是以天然石膏和护面纸为主要原材料,按照一定的比例掺加适量纤维、淀粉、促凝剂、发泡剂和水等,经混合、成型、凝结、分切、烘干、包边……

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