不同螺旋角对SWECO圆形振动筛的筛分性能的影响  

Effect of Different Screening Helix Angles on Screening Performance of SWECO Vibro-Energy~ Round Separator

作　　者：宋建伟[1] 林涛[1,2] 殷学风[1,2] 王志杰[1,2] 李王芳 

机构地区：[1]陕西科技大学轻工与能源学院,陕西西安710021 [2]教育部轻化工助剂化学与技术重点实验室,陕西西安710021 [3]福伊特造纸(中国)有限公司,江苏昆山215300

出　　处：《造纸科学与技术》2013年第5期76-81,共6页Paper Science & Technology

基　　金：陕西省教育厅资助项目(08J216)

摘　　要：选用杨木P-RC APMP为原料,利用SWECO圆形振动筛对其进行筛分。通过观察不同螺旋角下浆料的分布和细小纤维的形态,测定细小纤维表面电荷、黏度、比沉降容积等参数,对SWECO筛的筛分性能进行了初步评估。结果表明:不同筛分螺旋角下,SWECO筛筛分浆料的实时动态分布轨迹符合阿基米德螺旋曲线,当筛分螺旋角为15o时,细小纤维筛分收益率最高。Poplar P - RC APMP was chosen as raw materials for fines generation, and SWECO Vibro - EnergyR Round Separator was used for fines collecting. The stock distribution in SWECO Vibro - EnergyR Round Separator and morphology of fibers with different screening helix angles were investigated. The effects of the surface charge, viscosity, relative sediment volume were studied for the collected fines, and screening performance of SWECO Vi- bro - EnergyR Round Separator was evaluated. The results showed that the motion track of pulp on the screen me- shes is in accordance with Archimedes spiral curve at different screening helix angles of SWECO screen. When the helix angle is 15°, the yield of fine screening is the highest.

关 键 词：P—RC APMP SWECO 细小纤维 筛分 螺旋角 

分 类 号：TS733[轻工技术与工程—制浆造纸工程]