Simply stated, hygroscopic materials absorb moisture, whereas hydrophobic materials do not absorb moisture from the environment. Knowing which category a material falls under plays an important role in our work in the Innovation Center; it affects the way in which a material is both stored …
Industrial pigments play an important role in the performance and durability of many products. In addition to serving as a coloring agent, pigments can also offer protection against corrosion and even UV rays; pigments are all around us, from building materials and concrete, to textiles, …
This week’s photo shows pitting on a trunnion wheel. Pitting, or deep indentations, can develop from improper lubrication and/or normal wear and tear associated with trunnion wheel operation. Pits are never ideal; they will expand and cause the weight of the drum to be unevenly …
The flow properties of a bulk solid can have a significant impact on process efficiency and the success of the end product. And while bins, hoppers, and the like are often designed to minimize such issues, agglomeration can be a valuable tool in improving the …
Rotary dryer misalignment is oftentimes the result of improper base installation. Misalignment in the base will quickly spread through the rest of the drum, causing wear and damage to other drum components. In addition, misalignment can occur naturally over time as part of normal rotary …
Conditioning is a term used frequently in the field of bulk solids processing to describe a wide range of material treatments, be it for a raw material, a byproduct, or a finished product. Conditioning is an important component in the processing of bulk solids, allowing …
This week’s photo shows two different rotary drum tire mounting styles: the wedged and pinned mount (at left), and the floating mount (at right). Traditionally, wedged and pinned mounts were used to mount the tire to the shell of the drum. And while they offer …
The addition of a coating drum to a granulation line has gained popularity in recent years as producers look to further specialize their products and control quality and performance metrics. Whether producing a fertilizer product or roofing granules, the addition of a coating drum gives …
Attrition transpires when agglomerates break down into fines- an undesirable occurrence that results in excess dust and waste product. It is commonly seen with granules produced via compaction granulation, and is caused by the rough, jagged edges rubbing against one another and wearing down the …
A pin mixer can be an incredibly valuable tool in a limestone pelletizing system, offering several benefits to both the process and the product. Made up of Calcium Carbonate and typically crushed prior to use, limestone intended for use as a soil amendment is processed …