Definition of liquid filtration system
Filtration can be defined as the process of solid - liquid separation of suspension through filtration medium.
There are two filtration mechanisms: one is surface filtration.
The filter medium is thin. Solid particles in the suspension are trapped on the surface of the filter medium to form a filter cake layer.
The other is deep filtration, where the media layer is thick. When the filtrate passes through the filtration medium, these fine solid phase particles are captured in the filtration medium layer.
These two different filtration mechanisms are characterized by the difference of pressure between two ends.
Generally speaking, filtration efficiency and accuracy are related to the pore, filtration pressure, solid concentration of suspension, particle distribution of solid phase, compressibility of solid phase and gels contained in suspension and other factors. Materials handled in industrial production.
High precision of solid-liquid separation is often required.
The filtrate produced is as clear as possible, which requires simple structure, accurate and convenient operation, sufficient mechanical strength and stiffness, etc.
And the whole process is required to be completed in a sealed system, using a very convenient backblowing and backwashing technology.