Automatic Sampling and Measurement of Surface Area of Pulverized Material

The trend in cement manufacturing is to larger production units, central control, finer cements, and a broader range of cement fineness. The availability of a continuous sensor of cement fineness can help to alleviate problems which have been emphasized by these trends. A system for measuring specific surface of pulverized materials, especially finished cement, has been developed. This system, combining a fluidized blender and an automatic permeability sensor, gives promise of substantial benefit in optimization of production and quality in finish grinding of Portland cement.