In the world we live in, filtration is everywhere, from the water and coffee we drink daily to various liquids and gases in industrial production. Among numerous filtration devices, filter bags have become a crucial part of the filtration process due to their unique performance and wide applications.
I. A Wide Variety of Filter Bags
Filter bags are made of diverse materials, enabling them to meet various filtration requirements. Common materials include polyester, polypropylene, nylon, glass fiber, FMS (Fluoride Modified Synthetic Fiber), etc.
Polyester filter bags have good chemical stability and certain strength and are widely used in general liquid filtration, such as in industrial wastewater treatment and chemical liquid filtration. Polypropylene filter bags have good resistance to acids and alkalis and are often used in some liquid filtration scenarios with strong corrosiveness, such as the filtration of electroplating solutions and chemica raw material liquids. Nylon filter bags have precise pore sizes and can achieve high – precision filtration. They play an important role in the food and beverage industry, such as in the filtration of wine and fruit juice, ensuring the purity of products. Glass fiber filter bags have excellent high – temperature resistance and can be used for the filtration of high – temperature gases, for example, in the high – temperature flue gas dust removal in steel plants and cement plants. FMS filter bags are not only resistant to high temperatures but also highly corrosion – resistant, suitable for some harsh industrial environments.
Iln terms of structure and use, filter bags can be divided into liquid filter bags, dust – removal filter bags, air – purification filter bags, etc. Liquid filter bags have different filtration accuracies ranging from 0.5 microns to 300 microns, which can meet various needs from high – precision liquid filtration in the electronics industry to general industrial liquid rough filtration. Dust – removal filter bags are mainly applied in the industrial dust – removal field. In places like cement plants and steel plants, they can effectively capture dust, reduce dust pollution to the environment, and ensure a clean production environment. Air – purification filter bags are commonly found in air – conditioning systems and air purifiers, filtering dust, pollen, bacteria, and other pollutants in the air to provide people with fresh and healthy air.
