Pano de filtro Bolian
In industries such as mining, produtos químicos, wastewater treatment, e processamento de alimentos, filter presses are essential for solid-liquid separation. The material of the press filter cloth directly impacts filtration efficiency, service life, and operating costs. This guide breaks down common filter cloth materials and their characteristics to help you select the best option for your application.
Common Filter Cloth Materials and Their Properties
1. Polypropylene (PP) Filter Cloth
Caraterísticas:
- Excellent resistance to acids and alkalis
- Lightweight and cost-effective
- Good abrasion resistance for particulate-laden materials
Suitable Industries:
- Mining (tailings dewatering, concentrate filtration)
- Chemical processing (acid-alkali filtration)
- Wastewater treatment (desidratação de lamas)
- Food industry
2. Poliéster (PET) Filter Cloth
Caraterísticas:
- High tensile strength and dimensional stability
- Resistant to weak acids and organic solvents, not suitable for strong alkalis
- Good heat resistance
Suitable Industries:
- Chemical industry
- Mining and metallurgy
- Environmental and wastewater applications
3. Nylon (PA) Filter Cloth
Caraterísticas:
- Outstanding abrasion resistance, ideal for high-wear environments
- High elasticity and tensile strength
Suitable Industries:
- Metallurgy
- Pharmaceutical industry
- Industrial sludge dewatering
How to Choose the Right Press Filter Cloth?
Chemical Compatibility: Ensure the cloth can withstand the acidity, alkalinity, or solvents in the filtration process.
Temperature Resistance: For high-temperature applications, choose heat-resistant materials like polyester or PVDF.
Filtration Fineness: Use tightly woven fabrics for fine particles and more open weaves for coarse solids.
Abrasion Resistance: For slurry with hard particles, select a durable material such as nylon.
Cake Release Properties: Calendered (glazed) filter cloths offer smooth surfaces for easy cake discharge and better efficiency.
