In rotary kiln engineering, dams are often an overlooked yet critical component in controlling material retention and thermal efficiency. These strategically placed internal structures help engineers fine-tune process performance, making them an essential part of kiln design—particularly when processing solids that require extended retention times …
As industries pursue cleaner operations and greater efficiency, many producers are asking whether their rotary kilns (and in some cases, dryers) should be powered by electricity instead of traditional fuels such as natural gas, oil, or diesel. While electrification offers compelling advantages, it also presents …
Rotary drums are central to countless industrial processes, and whether drying, heating, cooling, or granulating, their performance depends on precise alignment and structural integrity. One often-overlooked, yet critical, rotary drum maintenance task for ensuring both is tire reshimming. A small adjustment with a big impact, …
Rotary kilns are used in a variety of thermal processing applications, and depending on the material being processed and the process objectives, internal components are often employed to improve efficiency. One such component is the bed disturber, widely employed in indirect kilns. While not always …
The frac sand dryer has become a critical component in meeting today’s growing demand for high-quality proppants used in hydraulic fracturing. As rig counts rebound and the volume of sand used per well continues to climb, the global frac sand market reached a valuation of …
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 …
Rotary dryers have a long history in many industries, but perhaps none more than in the fertilizer industry, where they are an essential component in processing minerals for fertilizers at mine sites, and for producing many of the fertilizer products on the market today. Rotary …
Fluid bed dryers are one of the most popular types of industrial dryers, and for good reason: their high rate of heat transfer, paired with their wide applicability and small footprint, makes them favorable in a range of different production settings. Acquiring a fluid bed …
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 …