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在纸机成形部和压榨部用回用白水代替清水能获得很大的经济效益。对9906mm挂面纸板机的喷水管进行研究,并将每个喷水管的白水转化风险归类为低、中、高3个风险区域,详细论述了各类风险区域中白水替代清水所能节省的成本。结果发现,各类风险区域中白水替代清水共可节省成本450万美元,其中通过减少热水使用量就可以节约350万美元,约占总节省成本的77.5%。过去由于固液分离技术的局限性,限制了高风险区域白水的使用,如高压喷水管中白水的使用,最近PetaxTM精细过滤系统的引进,使其成为可能,这可节省成本84.6万美元,占总节省成本450万美元的19%。
Recycling of white water in the forming section and press section of the paper machine can be very cost-effective. The water pipe of 9906mm linerboard machine was studied, and the risk of white water conversion of each pipe was classified into three low, middle and high risk areas, which discussed in detail the savings of white water instead of clear water in various risk areas the cost of. The results showed that replacing white water with water in all risk areas saved a total cost of 4.5 million U.S. dollars, of which 3.5 million U.S. dollars could be saved by reducing hot water usage, accounting for 77.5% of total savings. Due to the limitations of solid-liquid separation technology, the use of white water in high-risk areas, such as the use of white water in high-pressure sprinklers, has been limited by the introduction of the PetaxTM Fine Filtration System, which saved costs of $ 846,000, 19% of the total cost savings of 4.5 million U.S. dollars.