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Diafiltration of Highly Concentrated Suspensions with Fine Particles by Dynamic Disk Filtration
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2021-08-26 , DOI: 10.1002/ceat.202100194 Denis Goldnik 1 , Philipp Lösch 1 , Siegfried Ripperger 1 , Sergiy Antonyuk 1
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2021-08-26 , DOI: 10.1002/ceat.202100194 Denis Goldnik 1 , Philipp Lösch 1 , Siegfried Ripperger 1 , Sergiy Antonyuk 1
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A method for washing highly concentrated suspensions with fine particles by using a filter with overlapping disks was studied. For the experiments, alumina and titanium dioxide suspensions were used. It was demonstrated that the used suspensions have non-Newtonian behavior. The viscosity is influenced by the type of particle system, the solid concentration, and the shear rate. The washing process is operated in a discontinuous and a continuous way. The rotation of the disks and the shear flow across their surface prevents the formation of a filter cake and facilitates the handling of suspensions. The shear stresses at the filter disk and the rheology of the processed suspensions are both influenced by the type of particle system, the solid concentration, and the process parameters.
中文翻译：
动态圆盘过滤法对含细颗粒的高浓度悬浮液进行渗滤
研究了使用具有重叠圆盘的过滤器洗涤具有细颗粒的高浓度悬浮液的方法。对于实验，使用了氧化铝和二氧化钛悬浮液。已证明使用的悬浮液具有非牛顿行为。粘度受颗粒系统类型、固体浓度和剪切速率的影响。洗涤过程以不连续和连续的方式进行。圆盘的旋转和穿过其表面的剪切流防止形成滤饼并促进悬浮液的处理。滤盘上的剪切应力和处理过的悬浮液的流变性都受颗粒系统类型、固体浓度和工艺参数的影响。
更新日期：2021-08-26
中文翻译：
动态圆盘过滤法对含细颗粒的高浓度悬浮液进行渗滤
研究了使用具有重叠圆盘的过滤器洗涤具有细颗粒的高浓度悬浮液的方法。对于实验，使用了氧化铝和二氧化钛悬浮液。已证明使用的悬浮液具有非牛顿行为。粘度受颗粒系统类型、固体浓度和剪切速率的影响。洗涤过程以不连续和连续的方式进行。圆盘的旋转和穿过其表面的剪切流防止形成滤饼并促进悬浮液的处理。滤盘上的剪切应力和处理过的悬浮液的流变性都受颗粒系统类型、固体浓度和工艺参数的影响。
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