Everyone knows that whether it is a rotary vibrating screen or a linear vibrating screen, the most important thing when screening materials is the screen mesh. The screening of materials is controlled by the mesh size on the vibrating screen, and the effective selection of the mesh is the main factor in improving the efficiency of the vibrating screen! Today, the editor will organize how to reasonably select the screen mesh for the rotary vibrating screen. I hope the majority of users can be helpful.
1. The aperture of the rotary vibrating screen mesh refers to the size of the standard screen mesh, and the wire diameter of the screen mesh refers to the diameter of the woven metal wire.
2. Mesh size refers to the number of mesh holes in a length of 2.54 centimeters (1 inch), abbreviated as mesh size. For example, 80 mesh means that there are 80 holes per square inch, and 700 mesh means 700 holes. The higher the mesh count, the more holes there are. In addition to representing the mesh size of the sieve, it is also used to represent the particle size that can pass through the sieve. The higher the mesh size, the smaller the particle size.
3. The conversion method between mesh size and aperture micrometer of the sieve: Generally, in China, the grading system is based on the Taylor sieve system, with a 200 mesh mesh size of 0.074mm as the benchmark. The 100 mesh aperture is 200 * 0.074mm ÷ 100=0.148mm/325 mesh aperture is 200 * 0.074mm ÷ 325=0.045mm/.
4. The size of powder particles is called particle size. Due to the complex shape of particles, there are usually several representation methods, such as screening particle size, settling particle size, equivalent volume particle size, and equivalent surface area particle size. Sieve size refers to the size of the sieve holes through which particles can pass through the sieve, expressed as the number of sieve holes within a 1-inch (25.4mm) wide sieve. Therefore, it is called "mesh size". Currently, there is no unified technical standard for powder particle size at home and abroad, and each enterprise has its own definition and representation method for particle size. The specifications of screens in different countries and industries have different standards, so the meaning of "mesh" is also difficult to unify.
5. At present, the calculation diameter of equivalent volume particles is commonly used internationally to represent particle size. with μ Represented by m or mm.
6. The customer specifies the number of mesh sizes and has strict requirements or industry requirements that must comply with international standards. Customers are required to specify the corresponding mesh size. The mesh size is the only standard, but there are multiple options for mesh size.
Due to the inconsistency in the mesh size and aperture of the screening machine, users should choose the screening mesh based on the characteristics of their own materials. There is nothing absolute about choosing a sieve, we can only say that we can make the sieve machine and sieve match perfectly.