Rotary dryers are sized and designed around a material’s unique processing needs, or at least they should be. A custom rotary dryer will produce the most ideal results. The following material characteristics should be considered in sizing and designing a dryer: Moisture content, including inlet …
As traditional bedding options become increasingly unreliable, more farms are looking to Recycled Manure Solids (RMS) or Dried Manure Solids (DMS) as an alternative bedding material for livestock. Ongoing research and the number of farms successfully utilizing this approach have proven that both recycled and …
Rotary dryers are known as the workhorses of the industrial drying industry, but like any robust equipment, they are not immune to processing challenges. The challenges often vary on the specific material being processed, with some requiring additional preparation, and others, routine maintenance. Generally speaking, …
As large farms become the future of agriculture, the need for sustainable solutions in managing manure is becoming an ever-increasing focus. However, while large farms are learning to deal with the amount of manure they produce, significant opportunity lies in processing manure to produce products …
Various data points are measured during the rotary dryer feasibility tests conducted in FEECO’s Innovation Center, with the most common being: Inlet and outlet moisture content of the material. Inlet and outlet material temperature. Material feed rate. Residence time. Inlet process air temperature. Outlet gas …
This week’s photo features two lifter designs. Lifters, also known as fins or flights, are commonly added to the interior of a rotary dryer to assist in the industrial drying process. Their overall objective is to promote efficient heat transfer between the material and the …
Rotary kilns, like any other high-performing piece of equipment, need regular inspection and maintenance to ensure ideal operation. The list below highlights the areas of a kiln that should consistently be inspected: Refractory. Direct heat can cause the kiln’s refractory to become tremendously dry, and …
Today’s photo shows the interior of a batch rotary kiln. The photo was taken at FEECO’s Innovation Center in Green Bay, WI (USA), where we perform thermal tests on a variety of materials. Batch kilns are ideal for feasibility testing and defining process variables before …
Today’s photo highlights a batch rotary kiln in use at the FEECO Innovation Center. A chute, pictured left, carries the material to be processed, transporting it to the kiln’s interior. The two chords, or thermal couples, read the bed (material) and air temperatures during the …
This week’s photo shows a rotary cooler, with flights affixed to the drum’s interior. The photo was taken in 1961, just ten years after FEECO was founded. Flights play a large role in industrial cooling, as they increase the efficiency of transfer between the material …