08-25-2008, 09:30 AM
The application of automation to raw meal sampling and analysis for online control of the raw mix composition in the blending silo of a cement plant is discussed. X-ray fluorescence spectroscopy makes feasible the automation of the sampling and analysis routine in the laboratory. The necessary frequency of sampling can readily by achieved and the consistency of samples for analysis maintained. Operating results are reviewed in connection with the POLAB laboratory automation system at the Santa Cruz plant of RMC-Lone Star, which uses this technique.