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 …
In this week’s photo, a FEECO Customer Service Engineer is checking for cracks in the refractory of a rotary kiln. Cracks periodically arise within the kiln’s refractory because certain areas are exposed to more direct heat. The area closest to the combustion chamber is the …
Agglomeration is frequently recognized as a process step that produces more marketable end products, such as fertilizers, pharmaceuticals, and food powders, among others. One overlooked application of agglomeration, however, is the treatment of materials headed to landfill. Before being disposed of, or taken to landfills, …
Pelleting and pelletizing are two terms often used interchangeably, though their processing methods do differ. Pelleting commonly refers to the extrusion process, where cylindrical pellets are formed by forcing material through a die. It is most often used with wood, fuel and feed products (such …
Today’s photo highlights a rotary dryer in FEECO’s Fabrication Facility. The drum was recently painted, and will soon be ready for shipment. This particular dryer features our direct drive option, the mechanism that causes the drum to rotate. It eliminates the need for a girth …
When designing a gypsum pelletizing system, most attention focuses on larger equipment such as disc pelletizers or rotary dryers. However, the importance of a pin mixer for gypsum pelletizing should not be overlooked. Pin mixers offer numerous benefits such as solids mixing, densification, and granulation. …
Flights, also known as “fins” or “material lifters,” are commonly used in both rotary dryers and coolers to maximize heat transfer between the material and the drying or cooling air. Affixed to the interior of the drum, they pick up the material as the drum …
As a significant investment and key process device, getting the most out of a rotary drum is a central focus in any production setting. When properly maintained, rotary drums can provide reliable performance for decades. If not properly maintained, however, seemingly-small issues have the potential …
This week’s photo shows pellets on a sieve. Sieves, made up of a circular, metal frame, with a screen-like wire mesh in the bottom, are used to measure particle size distribution. A variety of sieve sizes can be found in the FEECO Innovation Center, each …