针对壁流式过滤体捕集微细颗粒物的过程，建立了描述通道内流场和颗粒层分布的一维非稳态模型。
A one-dimensional unsteady model was developed to simulate the trapping of fine particles by a wall-flow filter by simulating the flow field and particle layer distribution in a channel.
使用传统滤料的袋式除尘器在操作过程中存在过滤阻力高且随时间波动大、对于微细粉尘过滤效率低、反清洗频率高等缺点。
The shortcoming of traditional filter media, such as high and fluctuating resistance, low efficiency for very small size dust, high frequency of regeneration etc.
本实用新型提供了一种膜过滤反冲装置，通过液体反冲消除微细粉体对膜面及孔道的污染。
The utility model provides a membrane-filtering back flushing device, and removes the pollution of a duct and a face caused by minuteness powder body through the liquid back flushing.
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