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Mar 17, 2025
The rotary vacuum disc filter is a continuous filtration device widely used in mining, chemical processing, papermaking, and water treatment industries. It separates solid particles from liquid slurry under vacuum suction, forming a filter cake on the disc surface while extracting filtrate for continuous and efficient solid-liquid separation.
At the core of this process lies the disc filter bag—a critical filtration medium wrapped around each disc segment. The performance of these filter bags directly influences filtration accuracy, cake formation, release efficiency, and the operational stability of the entire system.
Precise Fit: Custom-cut and stitched to perfectly match the disc segment, enhancing vacuum suction and filtration stability;
Excellent Air Permeability and Abrasion Resistance: Ensures consistent performance and extended service life;
High Throughput with Particle Retention: Achieves rapid processing without sacrificing filtration precision;
Optimized Cake Release Design: Reduces downtime with quick and efficient cake discharge.
Materials commonly used in disc filter bags include polypropylene (PP), polyester (PET), and nylon (PA). Each fabric is selected and tailored according to the specific slurry characteristics such as concentration, particle size, temperature, and chemical composition.
Mining & Minerals: Dewatering of ore concentrates and tailings;
Chemical Industry: Separation of phosphoric acid, alumina, and other chemical slurries;
Pulp & Paper: Solid-liquid separation in recovered pulp processing;
Water & Wastewater Treatment: Sludge dewatering and industrial wastewater purification.
As industries demand higher environmental standards and operational efficiency, disc filter bags continue to play a vital role in optimizing filtration systems. Bolian offers tailor-made, high-performance disc filter bag solutions to help industries achieve improved separation results and reduced operating costs.
