在液流的过滤作业中,通常可观察到过滤介质的性能与新介质的有所不同。经过某些作业时间之后,任何过滤介质的性能均会下降,故迟早都需要对过滤介质进行清洗,最终还得更换。过滤介质性能下降可能会由许多原因而引起,其中最主要的原因是由于过滤介质的孔隙被颗粒所堵塞,这对滤饼过滤产生了不利的影响。本文将讨论这种影响。 In the flow of filtration operations, it is usually observed that the performance of the filter media and new media is different. After some operating hours, the performance of any filter medium will decline, so sooner or later need to clean the filter media, eventually have to be replaced. The degradation of the filter media can be caused by a number of reasons, the most important of which is due to the clogging of the pores of the filter media with the particles, which adversely affects the filtration of the filter cake. This article will discuss this impact.