![]() ![]() He coauthored articles in the Refresher Series on Liquid Agitation that they published in Chemical Engineering magazine in 19. He has also served as an expert witness in important litigation cases involving mixing equipment.īefore starting his consulting business he had more than thirty years experience with manufacturers of various types mixing equipment, including almost fifteen years experience with Chemineer, a major manufacturer of fluid agitation equipment in Dayton, OH. He teaches short courses on liquid mixing, powder blending, mixing scale-up, and advanced mixing through the Department of Engineering Professional Development, University of Wisconsin, Madison. Several companies have had him write specifications for new mixers or evaluate existing mixers. Since then he has done independent consulting work to solve process and mechanical problems with various types of mixing equipment. Technical people who are familiar with only one or two types of powder mixers may learn about other types of mixers that would work better for their processes.ĭavid Dickey started his own consulting business called MixTech, Inc.Engineers, and scientists who have new responsibilities for mixing processes or those who have existing process problems.People who have problems with powder mixing will learn about common problems and ways to improve mixing.Engineers, scientists, and technicians who do powder mixing in process applications will learn about some difficulties with powder mixing.More about some common types of powder mixers:.Some common problems with powder mixers:.Would a different type of blender work better?.How do I know if I have a uniform blend?.Answers to the most common questions about powder mixing:.The differences between liquid and powder mixing.All powder mixers will work, but only for certain types of powders and applications. Understanding powder properties does not necessarily predict mixing success, but powder properties may explain why problems exist. An unbiased description of different types of powder mixing equipment is useful, but evaluation and testing of different mixing equipment is always recommended. Changing mixers will always create some new problems. ![]() All opportunities should be explored and any improvements made to existing equipment before considering other types of mixers. The basic objective of the course is learning how to make the best use of existing powder mixers. Most powder processing problems are because the physical processes of mixing are not well understood. Other problems involve the effects of certain design features of the mixing equipment. Some problems are easily solved with simple adjustments to fill level or blend time. The purpose of this webinar is to help engineers and scientists recognize problems with powder mixing. ![]()
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