Vertical Mill Particle Size And Fineness

Vertical Mill Particle Size And Fineness

Relationship between particle size and fineness of vertical Mill

To explain to you: the relationship between the size and fineness of the vertical mill output. Processing ore materials selection mill equipment is the most efficient and energy-efficient way, but the size range of the material of the mill processing materials is very wide, our company's vertical mill equipment coarse grinding - Raymond Milling machine and fine grinding machine - two kinds of ultra-fine grinding machine, the discharge size of the production material is in the range of tens of mesh to several hundred mesh, even the fine powder grinding machine can reach several thousand purposes, and the range can be Arbitrarily adjusted, then sometimes the customer does not know the range of the mesh, and the conversion between the mesh and the millimeter micrometer is usually unclear, so here, let's talk about the mesh and the micron. The conversion between them hopes to help new and old customers.

In general, the inner diameter of the sieve (μm) ≈ 14832.4 / sieve mesh size unit particle size refers to the size of the raw material particles, generally expressed in terms of the maximum length of the particles. The mesh is the size of the mesh size indicating the standard sieve. In the Taylor standard sieve, the so-called mesh is the number of sieve holes in the length of 2.54 cm (1 inch), and is simply referred to as the mesh. Taylor standard screen: Taylor's screen index is based on a 200 mesh screen size of 0.074 mm, multiplied or divided by the square root of the main modulus (1.141) n (f = 1, 2, 3...) Thus, a mesh size of 200 or more is obtained. If the square root of the number 2 (1.1892) is multiplied or divided by 0.074 mm, a series of mesh sizes having a finer index can be obtained.

The larger the mesh number, the finer the particles. Similar to the magnification of the metallographic structure. Adding a positive or negative sign before the number of meshes indicates whether the mesh of the mesh can be missed. A negative number indicates a mesh that can leak through the mesh, that is, the particle size is smaller than the mesh size; and a positive number indicates a mesh that cannot leak through the mesh, that is, the particle size is larger than the mesh size. For example, the particles are -100 mesh to +200 mesh, which means that the particles can leak from the mesh of 100 mesh and cannot leak from the mesh of 200 mesh. When screening the particles of this mesh, the mesh should be large ( 200) is placed under the screen with a small mesh size (100), and the particles of -100 to 200 mesh are left in the mesh having a large mesh size (200). It can be seen from this definition that the size of the mesh determines the size of the mesh aperture. The size of the screen pore size determines the maximum particle Dmax of the sieved powder. Therefore, we can see that the 400-mesh polishing powder is completely fine, such as only 1-2 microns, and it is entirely possible to be 10 microns, 20 microns. Because the mesh has a pore size of about 38 microns. Our D50 for 400 mesh polishing powders is 20 microns.

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