Direct and indirect-fired rotary dryers are used in a variety of industrial settings to dry bulk solids. While the two are both comprised of a rotating drum and function to reduce a material’s moisture, several differences between direct and indirect dryers exist: Operation: direct-fired dryers …
This week’s highlighted resource is a Slideshare presentation on thermal testing with rotary kilns. Rotary kilns are an integral piece of equipment in many industrial processes, with new applications developing all the time. Thermal Testing with Rotary Kilns takes a look at the many reasons for …
Rotary dryer shells can be constructed from a variety of materials, including: Carbon steel Stainless steel Hastelloy Inconel And other alloys Dryer shells can also be tailored in many ways, depending on the material and process requirements of the customer. For example, shell thickness can …
With applications in everything from energy, infrastructure, and aerospace, to automotive, packaging, and more, aluminum has become a cornerstone of modern society. Aluminum’s widespread use might infer ease of accessibility, but such is not the case; aluminum is not found freely in nature, requiring the …
When working with a rotary dryer or kiln, the sealing mechanism is a critical component in the overall performance of the unit. Sealing mechanisms create a seal between the rotating drum and the stationary housing, preventing air or process gas from leaking into the system. …
The biomass industry has seen steady growth the past few years, as nations around the globe continue to shift focus toward more renewable energy sources. And while biomass offers direct uses in itself, it can also be converted to a number of carbon products, all …
This week’s highlighted resource is a brochure on FEECO’s rotary dryers and coolers. As a leading provider of custom rotary dryers and coolers, the FEECO brochure highlights options for both direct and indirect units for drying and cooling nearly any bulk solid material. Click here …
Within the thermal processing industry, there are two informal types of rotary kilns: commodity kilns and specialty kilns. Commodity kilns are kilns that are employed in widespread commercial use. Their processes are well developed, and have been in use for generations of commodity processing. Specialty …
In the face of growing demand, catalyst manufacturers are increasingly looking to rotary kiln maintenance programs to avert the escalating costs associated with downtime. Rotary Kiln Maintenance in the Catalyst Market When properly engineered and manufactured, rotary kilns are a reliable processing device, but they …
This week’s photo shows a warped leaf seal. Extreme heat during a kiln’s operation caused the seal to curl away from the drum, and cool into this deformed shape. It was later replaced by a FEECO Customer Service Engineer. Leaf seals minimize air leakage into …