Rotary kilns are a high-temperature thermal processing device used to cause a chemical reaction or phase change in a material. Able to process hundreds of materials, the applications in which rotary kilns can be used continue to grow – from the production of specialty chemicals, …
The rotary kiln, sometimes also referred to as a calciner, is a highly engineered thermal processing device. Unlike rotary dryers, which serve to reduce the moisture content in a given bulk solid, rotary kilns are intended to cause a physical change or chemical reaction in …
Although rotary kilns are designed to be used for driving a chemical reaction, an issue that often comes up in the processing of a material is when to draw the excess moisture from the feedstock. Many times, there is an excess of moisture that needs …
Previously, we looked at indirect fired rotary kilns in applications such as reactivating spent carbons, pulling valuable materials out of valueless carriers, and conducting thermal processes in inert environments. Now we will look at indirect fired rotary kilns in the application of processing finely divided …
Depending on the circumstances, indirect fired rotary kilns can have many advantages over direct fired rotary kilns. One such advantage is when the required thermal processing is best done in an inert atmosphere. As an example, most carbonaceous solids will combust when at elevated temperatures …
In the thermal processing industry, rotary kilns are used to cause chemical reactions or state changes in varying materials. As discussed previously in Direct Fired Rotary Kilns vs. Indirect Fired Rotary Kilns: What’s the Difference, while direct fired rotary kilns and indirect fired rotary kilns …
Whether a rotary drum is being used as a dryer, kiln, cooler, or otherwise, it is often a key process component in a production setting. As a result, downtime for the rotary drum can have the potential to hold an entire operation on idle. For …
Rotary kilns are used to process a wide variety of materials, causing a chemical reaction or phase change. Within the rotary kiln industry, there are two major subsets: direct-fired rotary kilns and indirect-fired rotary kilns. Both kinds of rotary kilns employ the same thermal processing …
Rotary dryers have been a part of the thermal processing industry for over a century, and have earned their reputation as the industrial drying workhorse. These robust industrial drying systems have become a staple in just about every industry requiring bulk solids to be dried, …
In addition to the many material characteristics that must be considered during the sizing and design stages of engineering a custom rotary dryer, there are also a few operating environment factors to consider as well. Atmosphere Considerations: Humidity Humid air is already moisture-laden, meaning that …