Online Measurement of Flour Particle Size Distribution Using Piezoelectric Sensor

Abstract

Obtaining the ideal particle size is a vital factor in dust processes, from turning wheat into flour to cement and calcite production. However, the technology to measure particle size instantaneously during the production phase is still an area under development. These measurements made with electro-optical methods have limited use in industry due to their difficulties and excessive costs. Studies conducted with innovative acoustic emission sensors offer new hopes in particle size detection. These sensors can successfully measure the dimensions of a wide range of materials, from coal dust to metal powders to grass particles. Our study shows that these sensors can also measure the size of light flour particles instantaneously. Using developed method, the dimensions of five types of flour mixtures in the size ranges of 0-80 µm, 80-118 µm, 118-150 µm, 150-180 µm and 180-212 µm could be measured and classified with 100% success. Considering its potential to increase the efficiency of the milling process, this technology could revolutionize the milling industry.