For a filter, the filter cloth is an important part of it, it can be said that the filter cloth filter determines the filtering effect. So when you choose a filter cloth, you should pay attention to the relevant matters, the following simple example, let's take a look at it!
(1) According to the chemical and physical properties of the material, choose the material of the filter cloth. The filter cloth suppliers are as far as possible to provide detailed technical information, refer to the choice.
(2) According to the filtering accuracy of the filter to choose the permeability (maximum retention particle size). Can refer to the filter cloth suppliers to provide the maximum cut-off size and other technical parameters of the primaries. Although the initial filter cloth filter device filtration accuracy played a very important role, but the initial filtering accuracy is not as high as possible, to consider the filtering accuracy can reach the minimum requirements can be. Due to the filtration device in the filter after a period of time to form the filter layer, the filter cloth retention effect is very small, the real fine filter effect enough "filter layer" to form a good filter is the filter device using the key technology.
(3) cake peel performance. Pay special attention to filter cake stripping performance when choosing filter cloth. qo5_8mx filter cloth smooth surface, filter cake stripping quickly, complete filtration of the operating time is short, high efficiency. Cake adhesion in the filter cloth is not easy to peel, it will extend the operating time of the filter device, reducing work efficiency. If you want to change the filter cloth, the time will be longer. Now commonly used van filter device, filter cloth replacement are more troublesome. The choice of monofilament filter cloth than long multifilament and staple fiber filter cake unloading performance is better, choose satin weave than plain weave filter cake unloading cake performance better.
(4) filter cloth regeneration performance. Select the filter cloth should pay attention to select a good regenerative filter cloth. Regenerative performance of the filter cloth filter cloth can be directly on the washing cloth, reducing the number of cloth change. Replacement of the cloth by simple treatment (drying, washing, etc.) filtration efficiency to 80% or more.
(5) material filtration experiment. The use of filter device technology is an experimental technique. After the initial selection of filter cloth on the original material (without changing the nature of the material and process conditions) for filtration experiments is very important. Material sample filtration experiments. Check the filter cloth filtration rate, retention effect, cake moisture content, unloading cake performance, regeneration performance.
(Addtime：2018-2-27)
