Filtration performance of dust bag

Dust bag efficiency, resistance, air permeability, dust holding capacity, service life, known as the filtration performance. A filtration efficiency: on the one hand and the filtration efficiency of the filter media structure on the other hand also depends on the dust filter layer formed from the filter structure, the filtering effect of the short fibers than long fibers. Felt fabric filter media than. From the point of view of the formation of the dust layer, after the thin filter, cleaning the dust layer is damaged, much lower efficiency, and thick media, but also to retain a portion of the dust after cleaning the filter, avoiding excessive cleaning. Generally, in the case where the filter is not broken, it can achieve maximum efficiency. So long as the design parameters properly, the effect of dust bag filter should be no problem. Second, the amount of dust: dust holding capacity, also known as dust load, means to achieve a given amount of dust accumulated value of the resistance per unit area of filter. Dust holding capacity dust bag impact resistance and filter cleaning cycle. In order to avoid frequent cleaning, extend bag life, the general requirements of the filter dust holding capacity more. The porosity of the filter dust holding capacity and air permeability related to felt fabric filter media than the amount of dust. Third, the resistance and permeability: permeability rate is at a certain pressure difference, the amount of gas per unit area on the filter through. Filter resistance and permeability directly related. As the air permeability of the calibration constant pressure value, the value of different countries. Syria air permeability depends on the fineness of the fiber, and textile fibers and types of methods. Permeability generally refers to the cleaning of filter media permeability. When the dust accumulated on the dust bag, the air permeability to be reduced. Fourth, the media life: the life of the filter media refers to the use of time and under conditions of normal damage. Filter longevity depends on the quality and condition of the filter body two factors.