Expanded clay aggregates, also called exclay, or lightweight expanded clay aggregates (LECA), are a beneficial material in a growing number of industries – most notably construction and horticulture, with water treatment and filtration applications likely next in line. The unique structure and physical properties of Continue reading →
Cycling and chemical incompatibility are the two main causes of refractory failure in a rotary kiln. Cycling Cycling is the heating up and cooling down of a rotary kiln, and it is the largest source of refractory failure. Refractory expands with the kiln as it Continue reading →
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 Continue reading →
This week’s highlighted resource is a project profile on a rotary kiln resource recovery system. The recovery and reuse of metals is becoming ever-more critical to meeting the demands of the growing global population. This project profile highlights a rotary kiln FEECO designed to recover Continue reading →
Rotary kilns are used across a number of industries to cause a chemical reaction or phase change in a material. This high temperature thermal treatment can be used to carry out a variety of different objectives, from catalyst activation to aluminum decoating. The number of Continue reading →
Rotary kilns (also known as rotary calciners) are used to heat solids to a predetermined temperature in order to create a chemical and/or physical reaction. The two basic types of rotary kilns – direct fired and indirect fired (calciners) – can be found supporting processes in Continue reading →
The ongoing push for implementing more sustainable practices continues to be at the forefront of industry. Increasing regulatory action, combined with an ethical responsibility, has forced industries of all types to investigate a more sustainable approach in every aspect of their business if they want Continue reading →
This week’s highlighted resource is a Slideshare presentation on rotary kiln sizing and design. Rotary kilns are capable of carrying out various objectives and processing hundreds of materials. The principles behind the sizing and design of this advanced thermal processing device are explained in this Continue reading →
Today’s photo shows an indirect batch rotary kiln in the FEECO Innovation Center. Indirect kilns heat solids to the point where a desired chemical reaction or phase change takes place. Unlike their direct-fired counterparts, indirect kilns are used when a material cannot come into contact Continue reading →
Activated alumina is a form of aluminum oxide (Al2O3) with a myriad of industrial uses. A recent industry report by Grand View Research estimates the activated alumina market will see a CAGR of 5.4% up to 2025, largely as a result of its use in Continue reading →
