Improving product uniformity process efficiency in rapidly changing market conditions using PGNAA technology

摘要

When the Colorado cement plant was commissioned, its associated quarry and reserves made it suitable and economical to produce an ASTM Type I cement, requiring a low percentage of limestone and a high percentage of shale. As has been the case with many cement plants around the world, changing market conditions and customer demands for ever increasing cement performance forced the plant to move to Type II and Type V production and eventually oil well cements which require a much higher percentage of limestone in the mix. These demands combined with a complex quarry led the plant's management to utilize an online nuclear (PGNA) analyzer. This paper examines how the plant and manufacturer's teams worked together to meet the aforementioned demands while lowering LSF deviation and providing customers with a more uniform product.