When designing a thermal processing operation, confusion often results on whether a direct-fired or indirect-fired kiln is the better option. And while there can be some overlap in applications, in general, each type of kiln is better suited for different processes. Below is a brief …
Rotary kilns are widely used throughout many industries to carry out various chemical reactions and physical changes in bulk solids. As all materials respond differently, rotary kilns must be designed around the exact project specifications and material characteristics at hand in order to reach an …
Rotary kilns are widely used throughout a variety of industries to carry out chemical reactions and phase changes in materials. A highly engineered device, rotary kilns must be designed around the specific requirements of the material and project goals at hand. Rotary kiln design takes …
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 …
In thermal processing applications, controlling moisture content is critical to achieving both material quality and process efficiency. A common challenge in designing rotary kilns for bulk solids is determining whether the unit canโor shouldโbe used to remove excess moisture from the feedstock.ย While rotary kilns …
Pellets, or granules, come in a variety of different sizes, strengths, and shapes. Two types of granules that are often compared are round granules (or โpelletsโ) and extruded pellets. Despite frequent comparison, these agglomerate types are significantly different, each offering distinct advantages and disadvantages. The …
In the past several years, a problem in the agricultural industry has been gaining increasing attention: chicken manure. As chicken farms have blown up in size, the amount of manure they produce has escalated to a nearly unmanageable volume. People are scrambling to find a …
Aside from being hazardous to our health, sulfur dioxide is one of the leading contributors in the formation of acid rain. Sulfur dioxide is produced in the burning of coal, often in utility plants. Coal, which naturally contains sulfur, mixes with oxygen during the burning …
In an article by Robert McCabe, McCabe details the issues arising with safely disposing of mounting fly ash. Fly Ash is a fine, powder-like material, resulting from the burning of coal at power plants. As power needs increase, so do these resulting leftovers. Unfortunately, this …