Filter Press Applications

In filter press applications, double diaphragm pumps are widely used for their ability to handle high-viscosity slurries and solids-laden fluids efficiently.

1. Slurry Feeding: The primary role of a double diaphragm pump in a filter press system is to feed the slurry (a mixture of solids and liquids) into the filter press chambers. The pump can handle abrasive, corrosive, or high-viscosity slurries, making it ideal for pushing these materials into the press where solid-liquid separation occurs.
2. Pressure Delivery: Double diaphragm pumps operate on compressed air, allowing for an adjustable flow rate and pressure control. During the filter press cycle, the pump provides steady pressure to fill the chambers with slurry. As the chambers fill, the resistance increases, but diaphragm pumps can maintain flow and pressure, ensuring that the chambers are filled completely and the maximum volume of slurry is processed.
3. Handling Variable Flow: Filter press operations require variable flow rates, especially as the slurry begins to dewater. Diaphragm pumps excel in this area because they can run efficiently at different flow rates without causing damage to the pump or the process. As the filter cake forms, the pump can adapt to slower flows while maintaining consistent pressure.
4. Dewatering Efficiency: In some filter press applications, the diaphragm pump continues to run during the dewatering process, helping to push remaining liquid out of the slurry and compact the solids. This ensures efficient filtration and maximum recovery of solids.
5. Durability and Chemical Resistance: Since filter presses are used across industries like mining, wastewater treatment, and chemicals, diaphragm pumps offer excellent resistance to aggressive fluids and chemicals that may be part of the slurry. Their durable construction allows them to handle abrasive particles without significant wear.
6. Pulsation Control: Double diaphragm pumps are ideal for applications where pulsation control is important, such as when the slurry needs to be fed into the filter press at a consistent rate. Some pumps are equipped with pulsation dampeners to minimize vibration and pressure fluctuations, protecting the filter press components from damage.

In summary, Yamada double diaphragm pumps are used in filter press applications to efficiently feed slurries into the press chambers, maintain pressure, handle variable flow, and support the dewatering process—all while withstanding abrasive materials and corrosive fluids.

The Yamada^® Xtreme Duty Pro XDP^® AODD pumps are specifically designed for use in process-type applications. These pumps are ideal for filter press, high-pressure, extended deadheading, long runs of discharge pipe, and where air consumption is critical.