A rotary kiln is a thermal processing tool used in a variety of applications. It consists of a rotating drum with high temperature products of combustion flowing through or around it, creating a precisely controlled environment for material property change. Due to the substantially high …
When it comes to thermal processing, confusion often arises in choosing between a rotary kiln and rotary dryer. Although these two types of equipment share similar thermal processing principles, they are used in very different applications: Rotary dryers are used for drawing moisture out of …
Refractory, or the lining utilized on the interior of rotary kilns, is a critical component in ensuring process efficiency and prolonging the life of a rotary kiln. Here, we’ll discuss everything you need to know about refractory, including how it works, the different types, and …
Since 1951, FEECO International has built a reputation as the leader in rotary kiln design and manufacturing. Part of our success is owed to the FEECO Innovation Center, a state-of-the-art testing facility where our team of process experts conduct a variety of thermal tests to …
Dams are used to increase the retention time or bed depth in a rotary kiln. Material builds up behind the dam, forcing retention time and bed depth to increase. Material then spills over the dam and discharges from the rotary kiln. Since most rotary kilns …
Rotary dryers and rotary kilns share similar thermal processing functions, but each is intended for very different industrial applications. Rotary dryers operate at inlet temperatures between 600 and 1400ºF, and are predominately used to draw moisture out of a material. Rotary kilns, on the other …
Rotary kilns use extremely high temperatures in order to cause chemical reactions or phase changes in material. They are frequently used in the production of the materials all around us, particularly when it comes to advanced materials such as catalysts and absorbents, which require precision …
Asphalt shingles are the leading choice for residential roofing in the United States. They are affordable, durable, low maintenance, versatile, and have proven effective in the roofing industry for almost 100 years. A large part of their effectiveness, however, lies in the the roofing granules …
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, …
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 …