The materials processed during the crushing, grinding and sorting process are composed of various loose particle groups of different sizes and sizes. The particle group is classified by a certain tool (such as sieve or other instruments). Divided into several levels, these levels are called the level. The weight of each grade is weighed by weighing, and the percentage of each of them is calculated by the weight of the sample, and the yield of a certain grade is obtained. The yield of each fraction in the material is referred to as the particle size composition. From the composition of the particle size, the distribution of each particle size in the material can be seen. The measurement of the particle size composition is called particle size analysis. Particle size analysis plays an important role in crushing, grinding, sorting, dehydration and other operations. The size and distribution of material size have a significant impact on each operating index. Sometimes the size of the material determines the selection method, equipment and process prerequisites. Methods of particle size analysis include screening analysis, sedimentation analysis (water analysis), and microscopic analysis. The particle size analysis methods often used in mineral processing and experimental research are sieve analysis and water analysis. ZHONGSHAN LAVI HARDWARE PRODUCTS CO., LIMITED , https://www.lavimedal.com