A filter press is a batch operation, fixed volume piece of equipment ranging from 0.1m3 -20m3 that separates liquids and solids using pressure filtration. Slurry is pumped into the filter press and dewatered under pressure. A filter press can be used for solid-liquid separation or wastewater treatment in a variety of different industries and applications, such as mining, metallurgy, petrol, chemical, medical, dyeing, paper, food, alcohol, textile production, etc...
Main components of filter press:
> Frame: The steel frame acts as a clamping device for the filter plates. > Filter Plates: A filter cake forms in the chambers between filter plates. > Filter Cloth: A cloth filter that is attached to both sides of a filter plate. Solids build up on cloth to form a filter cake, separating liquids from solids.
* 1. Slurry is pumped into the filter press. The solids are distributed evenly on the filter cloths during the feed (fill) cycle.
* 2. Solids begin to build on the filter cloth, trapping the ensuing particles and building a filter cake. The filter cake acts as a depth filter for solid/liquid separation. Filtrate exits the plates through the corner ports into the manifold.
* 3. When the correct valves in the manifold are open, the filtrate exits the press through the filtrate outlet. As the filter press feed pump builds pressure, the solids build within the chambers until they are completely full of filter cake.
* 4. Once the chambers are full, the fill cycle is complete and the filter press is ready to be emptied.
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