Today, I will introduce the filtering principle and production process of the filter mesh.
Filter principle
1. Screening mechanism of the filter screen: When the diameter of the filtered impurities is larger than the holes on the filter screen, these larger particles will be intercepted. At this time, it has nothing to do with the fluid velocity and particle density; for the continuous phase, it is liquid and Separation operations of heterogeneous systems of gases all work;
2. Inertial collision mechanism of filter mesh: When those dust particles are in high-speed fluid motion, due to inertial action, particles and particles or particles and filter media collide with each other, causing particles to lose kinetic energy and be separated. It is mainly suitable for the separation of particles with a diameter of 1-10Lm in a heterogeneous system where the dispersed phase is gas;
3. The electrostatic adsorption mechanism of the filter mesh: For some dust particles with relatively small diameters, they can generally carry some charges and be separated from the fluid due to electrostatic adsorption between the filter media.
Production Process
The process of producing the filter mesh is not complicated, and it is mainly made of special molds, so the staff needs to set the model and parameter standards in advance. The processing materials of the filter mesh are different. In the process of processing, the manufacturer should specifically consider the three-point welding process, so as to ensure that the filter mesh does not fall off and be damaged. At the same time, professional manufacturers also use different metal materials to wrap the filter mesh, and which material to use depends on the components of the filter mesh.
The edge of the produced filter should not have gaps, it must have a complete edge, no burrs, smooth edge appearance, no bumps; neat overlap, complete and smooth edges; no breakdown, and no light-transmitting spots at the solder joints; In addition, the deformation of the edging is rigid to meet the sealing requirements of the spinning assembly, and it is possible to directly seal and impregnate without adding a metal sealing ring.
The filtration principle of the filter mesh includes three major mechanisms: sieving, inertial collision, and electrostatic adsorption. It is the coexistence of these three mechanisms that make the filter mesh powerful, and the production process of the filter mesh is perfect. The practicality of the filter mesh.
Our Skills & Expertise
We are a specialized manufacturer for the development, design, and production of expanded metal mesh, perforated metal mesh, decorative wire mesh, filter end caps and stamping parts for decades. Dongjie has adopted ISO9001:2008 Quality System Certificate, SGS Quality System Certificate, and a modern management system.
If you need it, just click the button below.
Post time: May-31-2022