The filter screen is a very important part of the self-cleaning filter equipment. If the filter screen is not selected properly, it will have a great impact on the filtering effect and also affect the service life of the equipment. Therefore, it should be polished when selecting the filter screen. Eyes, let's take a look at how to correctly choose the self-cleaning filter screen.
First. Choose the correct filter type
At present, there are mainly V-shaped wedge-shaped meshes and O-shaped punched meshes used for self-cleaning filter meshes on the market. Although the two types of filters have relatively high filtration accuracy, they are still very different. The V-shaped wedge-shaped mesh has a smooth surface and a filtration accuracy of up to 30 microns. It can adapt to the filtration of liquids of various viscosities and is suitable for scraper type self-cleaning filters. The perforated mesh is suitable for higher precision, up to 10 microns. However, due to the uneven surface of the punching mesh, it is suitable for brush-type self-cleaning filters. The punching screen cannot filter liquids with high viscosity, and is only suitable for filtering water or liquids with a viscosity close to water.
Second, choose the appropriate filter accuracy
When the filter screen precision of the self-cleaning filter is selected inaccurately, the filtering effect will be greatly reduced, and the impurities will not be removed cleanly. Only by selecting a filter screen with sufficient accuracy can the filtering goal be achieved. The precision of wedge-shaped mesh and punching mesh can be customized, and enterprises should directly adopt customization when choosing.
Third，Choose a filter with good quality
When choosing a self-cleaning filter screen, pay attention to choosing a product of high quality. Take the wedge-shaped mesh as an example. When selecting, you can observe whether the surface is smooth or not. The quality of the filter mesh with obvious concave and convex feeling is not good enough. When the scraper is running, the scraping will not be clean. Check whether the filtering gap is uniform, and the filtering accuracy will not be high if the gap is large or small. Check the thickness of the filter screen, too thin wedge-shaped screen, the pressure bearing performance is not good, and the service life is short.
