A recessed filter plate is a component used in filter presses, which are devices used for solid-liquid separation in various industries such as wastewater treatment, mining, chemical processing, and food production.

The recessed filter plate is a type of filter plate that has a depressed area in the middle. This depression allows for the formation of a chamber between adjacent plates when they are stacked together in the filter press. The slurry (a mixture of solids and liquids) is pumped into this chamber, and pressure is applied to force the liquid component (filtrate) out through the filter cloth while retaining the solids within the chamber.

The recessed design helps to increase the filtration efficiency and reduce the cake moisture content by providing a larger filtration area and a more uniform distribution of pressure across the filter cake. This design also facilitates the discharge of the filter cake after the filtration process is complete.