The liquid filter bag has excellent chemical stability and heat resistance during use, and is representative of the highest performance in the industry for its filter media in use, and is also used in all commonly used filter materials. The highest performance varieties have achieved high levels of filtration efficiency and filtration accuracy. The commonly used filter media are PE, PP, PTFE, NMO and so on.
Liquid filter bags are mainly made of PP, PE, nylon, glass fiber and other needle cloth materials, needles, and melt blown or wire burning methods. The conventional size of liquid filter bags is 180*450mm. 180*810mm, 105*210mm, 105*345mm, can be customized according to its equipment and various needs during the production process.
The liquid filter bag can use a porous medium to separate the suspension during the working process. When the filter bag is working, under the action of external force, the liquid in the suspension flows out through the channel of the medium. Is trapped to achieve separation. The suspension to be filtered is generally referred to as a filter slurry; the porous medium used is referred to as a filter medium; the liquid passing through the pores of the medium is referred to as a filtrate; the retained solid matter is referred to as a filter cake or filter residue. The
The number of holes in the filtration medium of the liquid filter bag is smaller than the diameter of the solid particles, and the solid particles are removed from the suspension by means of the screening effect. Filtration flowed out of the fine particles at the beginning of the filtration, and the filtrate was 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.