What is a filter plate? Learn about its components.

Filter plates are essential components in filter press systems and are widely used in industries such as mining, wastewater treatment, chemical processing, food production, and pharmaceuticals. Their primary function is to support the filter media and provide a chamber to separate slurries into their solid and liquid components.

Structure and Function

A filter press consists of a series of alternating filter plates and filter cloths. When slurry is pumped through the filter press, the liquid passes through the filter cloths and exits the system, while solid particles are retained as a filter cake. The design of the filter plates, including their material and the layout of the drainage channels, directly impacts the filtration efficiency and quality of the final product.

Filter Plate Types

Common filter plate types include:

Cavity Plates: These plates feature a concave design that holds the filter cake between two plates.

Diaphragm Plates: These plates feature a flexible membrane that can be inflated with air to compress the filter cake, thereby reducing the moisture content.

Plate and Frame Design: These older models utilize a solid plate and frame design and are well-suited for smaller operations or specific chemical processes. Filter plates are typically made from high-strength plastics (such as polypropylene) or metals (such as cast iron and stainless steel), depending on the required pressure and chemical compatibility.

High-quality filter plates offer the following characteristics:

High chemical resistance

Durability under high pressure

Easy maintenance

Efficient cake removal

Choosing the right filter plate ensures optimal performance from your filter press system, reducing downtime and extending equipment life.

Customization & Applications

Filter plates can be customized in size, material, and design to meet the specific needs of various industries. For example, in mining applications, filter plates must withstand abrasive materials while maintaining high performance, while in food processing, hygienic design and easy cleaning are crucial.

At KERTE, we manufacture and supply high-quality filter plates compatible with all major filter press brands. With over 30 years of experience, we provide customized solutions to meet your filtration needs. Contact us today for more information or to request a quote.