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 can—or should—be used to remove excess moisture from the feedstock. 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 “pellets”) 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 …
This is your opportunity to get into a great position in a family-oriented company. Founded in 1951, FEECO is an international business with a small business feel. FEECO International started out exclusively serving the fertilizer industry as a Fertilizer Engineering & Equipment Company. But over …
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 …
Biogas has been a popular topic of discussion lately, as the need for energy increases, and sources are being run dry. Sometimes referred to as swamp gas, landfill gas, or digester gas, biogas is generated from anaerobic digesters such as animal manure, sewage, and municipal …
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 …