What is the solid-liquid separation principle of China plate and frame filter press

Nowadays, plate and frame filter presses are widely used, and filter presses are used for mud treatment. So what is the solid-liquid separation technology of the filter press, what is the principle, and what is the process? Today, the editor of Xi'an HL will give you a brief introduction.

The basic principle of solid-liquid separation is: the mixed liquid flows through the filter medium (filter cloth), the solid stays on the filter cloth, and gradually accumulates on the filter cloth to form a filter cake. The filtrate part penetrates the filter cloth and becomes a clear liquid without solids. As the filtration process progresses, the filter cake filtration begins, the thickness of the mud cake gradually increases, and the filtration resistance increases. The longer the filtration time, the higher the separation efficiency. The specially designed filter cloth can intercept particles with a particle size of less than 1μm. In addition to the excellent separation effect and high solid content of the mud cake, the filter press can also provide a further separation process: in the process of filtering, it can be combined with the filter mud cake for effective washing. Thereby valuable substances can be recovered and high-purity filtered mud cake can be obtained.

The filtrate is first pumped into the water inlet pipe by the feed pump, and the feed pump gradually increases the filtrate in the water inlet pipe so that the filtrate enters the two water diversion pipes under high pressure conditions.

The water distribution pipeline is connected to the two water inlet methods above the plate and frame filter press, so that the filtrate enters the two distribution pipes above the filter plate of the plate and frame filter press, and the filtering in the distribution pipe of the filter plate The liquid is divided into the filter cavity composed of a filter plate and a plate frame. In fact, it flows into the plate frame wrapped by two filter cloths, and contacts the filter cloth. Under the trend of strong pressure, the filter is also The liquid in the filter cloth will pass through the filter cloth, and the filter cloth can only allow the liquid to pass through, while the solids are intercepted and stored in the filter cavity.

When the liquid passes through the filter cloth, the solids in it are intercepted, and solid-liquid separation is realized. At this time, the filtrate becomes clear and clean, and then passes through the collection of water outlet pipes under the filter plate. The water in the channel gathers together and flows to the drain valve of the single filter plate to drain out of the equipment.

What is the solid-liquid separation principle of China plate and frame filter press? The above is a brief introduction about the working principle of the filter press. It may not be very complete and comprehensive. If you would like to know more about the filter press, welcome to send inquiry to us: sales@hlsolidscontrol.com