The Parsum inline particle probe features the particle velocimetry technique for inline particle-size measurement. The technique is suitable for measuring particles in the size range from 50 to 6,000 μm travelling at velocities of between 0.01 and 50 m/s. The…
Hecht Technologie The ProClean Conveyor (PCC; photo) pneumatic conveying system creates a dust- and contamination-free atmosphere, enables conveying of toxic, moist or other difficult products and is well suited for transporting materials in an inert atmosphere. Vessels can be charged…
Spiroflow Systems The Model T11 Bulk Bag Super Discharger (photo) is designed for critical applications where hygiene and rapid dismantling of components without tools are essential to avoid microbial growth and cross-contamination between batches. The T11 can be custom-made to…
Agglomeration is the process of converting fine powder particles into larger particles by the introduction of external forces. Agglomeration is often desirable because the process yields a product that has a higher bulk density, contains less dust, and has improved…
An improved understanding of air classifier systems and their application can help in selecting the right device Mechanical centrifugal air classifiers are used extensively to process aggregates, ceramics, chemicals, foods, minerals, metals, plastics, flyash and other materials. They are normally…
Question: Should we convert from manual dumping of sacks to discharging from bulk bags? Answer: Dry, bulk chemicals have long been purchased in 50-lb (23-kg) paper and plastic sacks for several reasons. In volumes smaller than rail and truckloads,…
These days, there seem to be more reasons than ever to change feedstocks throughout the chemical process industries (CPI). Whether environmental, or more directly based on financial and market drivers, big benefits usually require big changes. This is especially true…
Feeder combines speed with accuracy Hapman The PosiPortion feeder (photo) offers a 2-in-1 feed screw option that dramatically improves batch accuracy without compromising speed. A two-speed delivery scheme, consisting of a fast turning “bulk-mode” and a slower “dribble-mode”, are used…
Storage of bulk materials in hoppers, bins and silos is ubiquitous in the chemical process industries (CPI), and so are the challenges that go along with it. Flow stoppage (bridging or arching), variability in mixture composition (de-mixing or segregation), erratic…
This table supports the article Using Inserts to Address Solids Flow Problems, CE, July 2010, pp. 32–37. U. S. Patents Patent # Date Title Inventors 1,731,675 Oct. 15, 1929 Sawdust Feeder McCoy, John C. 2,843,274 Jul. 15,…