Stainless steel mesh is refers to the basis of stainless steel wire mesh of deep processing of products made of mesh filter performance, mainly stainless steel: 304,304L, 316,316L
Stainless steel mesh commonly used are: stainless steel perforated metal, stainless steel woven wire mesh, and so on. Stainless steel filter is a novel functional porous material, which has an ideal uniform pore size distribution and excellent fluid permeability. High strength, can better withstand thermal stress and shock can be machining, welding, cleaning regeneration, especially for high purity, high security purification system. Currently. Stainless steel as the core of the development and application of separation purification technology and equipment have been included in the national "Nine Five" key scientific and technological achievements to promote the project. Influencing Factors of filter performance, filtration to reduce costs and optimize the filter design to extend filter life has significance. Stainless steel filter filtration process includes the following four stages:
(1) the initial stage of filtration, impurity particles with the fluid passes through the mesh screen media deposited on a clean surface, this time mainly by interception and diffusion mechanism. At this time it has not formed a continuous layer of particles, less pressure drop losses.
(2) intermediate filter stage, and gradually form a continuous filter layer, namely cake. At this narrow pore size filter to intercept a substantial increase in deposition of dust. A sharp increase in filtration efficiency, pressure increased rapidly.
(3) filter stable phase, this phase depends mainly on the role of screening filter cake. Screen plays cake formation and support to strengthen the role, then filtering mechanism mainly screening. This time, the pressure change is slow, approximately constant relative to the intermediate stage
(4) filter cleaning stage, with the thickening of the cake constantly need to be cleaned. Implement the filter recycling. At this time the collection efficiency decreased slightly. This completes a filtration cycle.