Hydraulic Press, Useful in Filtration
Press machines are commonly used in manufacturing industries for filtration purposes or even for size reduction. In an oil refining industry for example where liquid oil is supposed to be separated from the solid fatty acids, the mixture is supposed to go through a filtration process. The easiest and most effective way is to use a hydraulic press. The hydraulic press works with water, the water pressure is regulated to allow the pressing action between the plates of the hydraulic press.
Effect of Water Pressure on Filtration
Pressure changes with density of mixture to be filtered, if the mixture is not so thick, the water pressure will be low and for thick mixtures a higher pressure has to be applied for effective filtration to take place. The hydraulic press comes in different sizes; there is also a design of a small hydraulic press that can be used in small scale industries or for filtering less volume of mixtures.
The Heat Press
Another kind of press used in industries is the heat press; this uses heat to accomplish separation, the heat press in some cases works with the principle of melting and sublimation where the filtrate will have a different melting point temperature from that of the residue to allow separation. Any heat associated press needs a heat transfer material as well to accomplish the separation. The press machines manufacturers are modifying them; you can find a digital press now which is easier to use. Operations will be different for other types of press like the screen printing press and others in that line
