Plate and frame filter press is used for the separation of solids and liquids. Compared with other solid-liquid separation equipment, the mud cake filtered by the filter press has a higher solid content and excellent separation effect. The basic principle of solid-liquid separation is: the mixed liquid flows through the filter medium (Polytetrafluoroethylene plate and frame filter membrane), and the solids stay on the filter cloth and gradually accumulate on the filter cloth to form a filter cake. . The filtrate part penetrates the filter cloth and becomes a clear liquid without solids.
The types of filters are generally divided into filters with partitions and filters without partitions. There is essentially no big difference between the two. Generally, filters with partitions are made of very fine glass fiber or PTFE plate and frame filter element membrane composite materials as filter paper, aluminum foil as partitions, and a wooden frame or aluminum alloy frame. Its advantages are good filtration effect, low resistance, and large air volume. This filter is widely used in purification equipment and clean workshops.
The purification principle of polytetrafluoroethylene plate and frame filter membrane is not simply to filter out particles larger than the mesh like a sieve. Purifying air. Instead, it relies on the van der Waals force between fine particles and the filter to form an adsorption effect. It has a very good filtration efficiency for particles above 0.5 μm and below 0.1 μm. Particles below 0.1 μm undergo Brownian motion. The smaller the particle, the stronger the Brownian motion, the more times it is hit, and the better the adsorption effect. Particles above 0.5μm move inertially. The greater the mass, the greater the inertia and the better the filtration effect.
The polytetrafluoroethylene plate and frame filter membrane is obtained by thermally compounding the independently developed PTFE microporous film and imported non-woven fabric. It has a reliable filtration level of H11-H14, low wind resistance and low energy consumption. It can be widely used in household vacuum cleaners and other fields. It is easy to clean and has high filtration efficiency. Interested parties can enter the store for consultation and purchase!