Stainless steel plate and frame filters are industrial filtration devices used for solid-liquid separation, widely applied in various industries.
Material: Typically made of 304 or 316L stainless steel, these filters are corrosion-resistant, durable, and suitable for various liquid filtration scenarios.
Main Applications:
Primarily used for the filtration, clarification, purification, and solid-liquid separation of various liquids. Specific applications include:
Food and Beverage: Effectively intercepting micron-sized impurities, such as in vegetable oil refining and juice clarification, meeting food hygiene standards (e.g., HACCP certification).
Pharmaceutical and Biochemical: Used for filtering pharmaceutical solutions and purifying biological agents, ensuring filtration accuracy and a sterile environment.
Water Treatment: Industrial wastewater treatment and drinking water purification, with modular design improving treatment efficiency.
Other Industries: Also suitable for brewing, electronics, chemical, and environmental protection industries.
Working Principle: The liquid to be filtered is pumped into the sealed filter chamber of the filter press. Under operating pressure, the liquid passes through the filter membrane or filter media (such as microporous membranes, filter cloth, etc.) and is discharged through the outlet, while solid impurities remain in the filter frame to form a filter cake, thus achieving solid-liquid separation.
Performance Characteristics:
High Filtration Efficiency: Multi-layer filter plate design (e.g., ten-layer filter plates) provides a large filtration area and high flow rate, capable of intercepting impurities as small as 0.5 microns.
Good Sealing Performance: Uses sanitary quick-release clamps for leak-proof connections and easy disassembly and cleaning.
High Durability: Made of corrosion-resistant stainless steel, combined with silicone gaskets and other sealing components, it is not prone to aging even after long-term use.
Flexible Operation: Some models are equipped with an automatic return channel, allowing for automatic backflow and discharge of sediment; the base has rubber wheels for easy movement.
Customization and Application Cases
This equipment supports customized design to adapt to different scenario needs:
**Chemical Raw Material Purification:** Utilizing a 304 stainless steel frame and polypropylene filter plates, the increased number of filter chambers enables continuous filtration, increasing throughput by 40% while maintaining 98% filtration efficiency.
**Food Processing:** A customized double-sealed filter frame and food-grade silicone gaskets effectively intercept micron-sized impurities in vegetable oil refining, meeting HACCP certification requirements.
**Water Treatment:** The modularly designed plate and frame assembly allows for quick assembly and disassembly. Combined with ceramic membrane filter plates, it treats industrial wastewater with a daily processing capacity of 200 cubic meters.
Maintenance and Care Points
**Preparation Before Filtration:** Wipe the plate and frame and filter membrane with 75% ethanol, then rinse with clean water (air dry if no water is required); check that the silicone ring is intact and pressed flat into the sealing groove; attach the microporous filter membrane to both sides of the plate.
Routine Maintenance: Regularly disassemble and clean the filter plates, filter frames, and filter membranes to prevent impurities from affecting filtration accuracy; check for aging seals and replace them promptly to ensure sealing performance.
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