A filter press is a piece of equipment used in various industries, including chemical, pharmaceutical, and food processing, to filter liquids and separate solids from liquids. It works by applying pressure to a mixture of solids and liquids that are fed into the press, which forces the liquid component to pass through a filter cloth while retaining the solids.
The filter press consists of a series of filter plates and frames, which are arranged in a stack.
The plates are covered with filter cloths, which act as the filter medium. The mixture of solids and liquids is pumped into the press, and the solids are retained on the filter cloth while the liquid passes through and is collected in a channel at the bottom of the press.
Once the press is full, the pressure is released, and the filter cakes, which are the retained solids, are removed from the plates. The plates are then cleaned and the cycle is repeated.
Filter presses can be operated in various configurations, including manual, semi-automatic, and fully automatic.
They can also be customized to meet specific requirements, such as the type of filter cloth used, the pressure applied, and the size and shape of the plates.
Filter presses are commonly used in processes such as sludge dewatering, wastewater treatment, and chemical and pharmaceutical production. They are known for their ability to produce a high solids content in the filter cake and for their efficiency in separating solids from liquids.