The liquid filter bag is a very important part of the filtration process. The quality of the filter bag to a large extent determines the user’s use of the filtering effect. The liquid filter bag is effectively equipped with a patented structural ring, manufactured using professional production equipment, liquid filtration The bags are available in a variety of materials and specifications. Can be targeted to meet the application of various fields.
The filtration of the liquid filter bag mainly utilizes a porous medium to effectively separate the suspension. When the filter bag is in operation, under the action of external force, the liquid in the suspension flows out through the channels of the medium, and the solid particles are intercepted. To achieve its separation.
The liquid filter bag generally refers to the suspension to be filtered as a filter slurry; the porous medium used is called a filter medium; the liquid that passes through the pores of the medium is called a filtrate; and the solid that is retained is called a filter cake or filter residue.
The driving force of the filtering operation is the pressure difference between the upstream and downstream sides of the filter medium. The method for generating the pressure difference is 1 using the filter head itself, 2 pressurizing the filter surface, 3 vacuuming on the downstream side of the filter medium 4 Use inertial centrifugal force.
The pore size of the liquid filter bag in the filter medium is smaller than the diameter of the solid particles. When used, the solid particles are mainly removed from the suspension by the filtration of the sieve. Filtration of the liquid is filtered out in the early stage of filtration, and the filtrate is cloudy. . As the cake layer is formed and thickened, the filtrate gradually becomes clear. As the mesh is gradually blocked, the filtration rate tends to decrease. Filtration process When the cake layer is formed, the screening effect is generated by the cake layer, the filter medium loses the screening effect, and only plays the role of supporting the cake layer, which means that the cake layer is filtered.