What is dry sieve analysis?

Dry Sieve Test is a method of analyzing solid particles, which analyzes the particle size distribution of particles by placing samples on sieves of different apertures and using mechanical vibration equipment to sieve samples. In dry sieving analysis, particles are not separated or sieved using any liquid medium, but are sieved directly in a dry state, so it is also called mechanical sieving.

In dry sieve analysis, the particle size distribution can be determined by the size of the pores on the sieve. Usually, a series of sieves with progressively larger apertures are used to sieve the particles layer by layer, so as to obtain the particle size distribution of the particles. For sieves with different apertures, the ratio between the apertures is usually a multiple of 1:2.

The process of dry sieving analysis requires the use of a device for mechanical vibration in order to effectively separate the particles and drop them onto sieves of different apertures. The frequency and amplitude of vibration need to be determined according to the characteristics and size range of the particles to ensure accurate screening results.

The advantages of dry sieve analysis are simple operation, reliable results, and suitable for sieve analysis of various particulate matter. At the same time, dry sieve analysis does not require the use of any liquid medium, avoiding the risk of particles being affected or destroyed by liquid. In addition, dry sieve analysis can also perform multiple sieve analyzes at the same time, which improves efficiency.

However, dry sieve analysis has certain limitations. For some samples with fine particles or a wide range of particle distribution, dry sieve analysis may not be able to obtain accurate analysis results. In addition, the frequency and amplitude of the mechanical vibrations need to be chosen carefully so as not to cause excessive wear or damage to the particles themselves.

In summary, dry sieving analysis is a simple and reliable particle size analysis method, which is suitable for the sieving analysis of most particles. In practical applications, it is necessary to select the appropriate sieve and vibration conditions according to the characteristics of the particles and the particle size range to be analyzed, so as to ensure the accuracy and reliability of the analysis results.