摘要
介绍了精筛渣处理系统在混合办公废纸(MOW)制浆线上的生产试验,结果表明,精筛渣处理系统对精筛渣中的大胶黏物及尘埃有很好的去除效果,去除率分别达95.7%~98.3%和51.5%~76.8%,且不受运行浓度(0.26%~1.44%)的影响;精筛渣回收系统还可改善浆料的物理强度,浆张抗张指数提高5.1%~15.2%,撕裂指数提高6.6%~11.4%,耐破指数提高6.6%~25.7%,运行浓度对浆张抗张强度和撕裂指数的增幅没有明显影响,而耐破指数的增幅随运行浓度的增加而增大。体积能耗(y)随运行浓度(x)的增加而升高,呈较好的线性关系:y=0.73x+4.2191(R^2=0.9466);而吨浆能耗(y')随运行浓度(x)的增加而降低,二者呈幂函数关系:y'=499.67x^–0.906(R^2=0.9959)。
Industrial-scale test of fine screen reject recovery technology was carried out on a Mix Office Wasle(MOW)pulping line.The results showed that the recovery system had a good removal effect on macrostickies and dirt specks with efficiency of 95.7%~98.3%and 51.5%~76.8%,which were not affected by the running concentration(0.26%~1.44%).The system could also improve the physical strength of the pulp,the tensile index increased by 5.1%~15.2%,the tear index increased by 6.6%~11.4%,and the breaking index increased by 6.6%~25.7%,respectively.The running concentration had no obvious effects on tensile strength and tear strength,while bursting strength increased with the increasing of running concentration.The volume energy consumption(y)increased with the increasing of the running concentration(x),which showed a good linear relationship:y=0.73x+4.2191(R^2=0.9466).The specific energy consumption(y)of the pulp decreased with the increasing of the running concentration(x),and the relationship between them was power function:y=499.67x^-0.906(R^2=0.9959).
作者
苏振华
范述捷
张羽
田超
龚琛
倪建萍
杨彬
彭锋
SU Zhenhua;FAN Shujie;ZHANG Yu;TIAN Chao;GONG Chen;NI Jianping;YANG Bin;PENG Feng(China Pulp and Paper Research Institute Co.,Ltd.,Beijing,100102;National Engineering Lab of Pulp and Paper,Beijing,100102;Beijing Key La of Lignocellulosic Chemistry,Beijing Forestry University,Beijing,100083)
出处
《中国造纸》
CAS
北大核心
2019年第A01期151-156,共6页
China Pulp & Paper
基金
“政府间国际科技创新合作”重点专项项目(项目编号:2016YFE0114700)。
关键词
废纸浆
精筛渣
回收
大胶黏物
尘埃
物理强度
secondary fiber
fine screen reject
recovery
macrostickies
dirt
physical strength
