ONLINE DETERMINATION OF PARTICLE-SIZE DISTRIBUTION DURING THE MANUFACTURE OF COMPOUND FEED

Experimental investigations were carried out with mainly a Mogensen-Si zer, compared with test screening and additionally laser diffraction a nd light extinction, in order to check the qualification for on-line d etermination of particle size distribution under the specific conditio ns of feed milling. The different components of compound feed, the deg ree of milling, the differences in measured particle characteristics a nd the possibility of sample dispersion affect the comparability of th e results. The results show that laser diffraction is a many-sided met hod with accurate recording of the distribution. The modified Mogensen -Sizer can be a robust low-price alternative if the control of selecte d distribution parameters is sufficient.