Rotary kilns (also known as rotary calciners) are used to heat solids to a predetermined temperature in a controlled processing environment in order to create a chemical and/or physical reaction. While rotary kilns have long been used in producing cement, their flexible capabilities have extended …
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 …
Rotary kilns use heat to cause a physical change or chemical reaction in a particular material, and can be utilized to carry out a variety of processes. One of the more common processes carried out in a rotary kiln is heat setting. This refers to the act of …
This week’s photo, taken in the FEECO Fabrication facility, shows a FEECO employee using a laser shaft alignment tool to properly align the coupling on the shafts of a drive assembly. The coupling joins the shafts between the drive motor and reducer. The shafts are …
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 …
Rotary kilns are incredibly diverse in their processing capabilities, a characteristic that has pushed them into a growing number of applications. And while rotary kilns are reliable machines, they can experience issues, especially when not properly designed, monitored, or maintained. Knowing why such issues occur, …
Catalysts continue to play a growing role in modern industry, carrying out an array of processes that otherwise might not be possible, promoting more sustainable industries through efficient processing, reducing toxic emissions, and more. As the use of catalysts grows, so too does the amount …
As society continues to move toward more sustainable waste management methods, an alternative technique for handling EAF dust has been gaining interest: EAF dust recycling via reduction roasting. The Problem with EAF Dust EAF dust is a by-product of the steel production process, and refers …
The ongoing push to implement more sustainable practices continues to be at the forefront of every aspect of industrial processing. In this effort, high-temperature kilns, or rotary kilns, are turning out to be pivotal equipment in the effort to bring about positive change, both directly …
Many factors are taken into consideration when designing a rotary kiln. Each affects the ability to produce a desired chemical reaction/phase change in an efficient manner. Characteristics such as bulk density, specific heat, and flowability, among others, all interact to influence how the material will …