Rotary kilns are widely used across industries that require precise, high-temperature heating of materials, such as mineral processing, chemical production, and waste management. Understanding the differences between direct and indirect-fired designs is critical for engineers seeking the right equipment for specific thermal processing requirements; while …
Recent advancements have made rotary kiln alignment methods faster and more effective than ever. Misalignment is one of the most common (and most treatable) causes of rotary kiln damage. Alignment touches all components of a rotary kiln, with misalignment promoting wear on all parts. In …
Refractory is specific to direct-fired rotary kilns, insulating and protecting the shell of the drum from high internal temperatures; they also function to maintain heat retention. Many types of refractory exist, with the most common options being brick or castable. Brick is typically used for …
A mass and energy balance, also known as a heat and mass balance (HMB), is a critical step in the rotary kiln design process. Unbeknownst to many, however, it can provide significant value beyond the design process as well, helping buyers to estimate operating costs, …
As the role of catalysts in industry continues to grow, catalyst manufacturing research and development continues to rise. In this effort, the FEECO Innovation Center serves as a critical testing environment for producers looking to improve existing products or develop new ones. The following looks …
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 …
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 applications …
After decades of production, rotary kilns used for calcination in catalyst plants and manufacturing facilities are reaching the end of their service life. Producers looking to replace their aging calcination equipment are quick to order a duplicate system, but what many don’t realize is that …
A rotary drum, be it a dryer, cooler, agglomerator, or otherwise, is a major investment and integral part of many industrial processing systems. From drying and cooling bulk solids before storage, to agglomerating ore fines in a heap leaching operation, the rotary drum often serves …
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 …