Application of laser particle size analyzer in coal particle size detection（3）

Application of laser particle size analyzer in coal particle size detection

The expression of pulverized coal fineness can be summarized in various ways such as sieve residue, specific surface area, particle gradation, average particle size, etc. The measurement method of fineness has also been gradually updated from the initial sieve method and microscope method to the most prominent laser refraction technology. The sieve method and microscope method have slow measurement speed and relatively small particle size measurement errors for irregularly shaped samples. Large, has gradually faded from the field of particle size measurement. Specific surface area is a relatively correct way to express particle size, and has a very close relationship with the combustion performance of pulverized coal. However, specific surface area actually contains particle accumulation factors and is not a true geometric sense. The specific surface area of the particles. The laser particle size analyzer can obtain the particle size distribution that was previously unmeasurable in the pulverized coal industry, and establish the relationship between particle size distribution and the combustion characteristics of pulverized coal. Winner2000E was used for this pulverized coal testing, and the testing instruments are as follows: