Evolution of the Frac Sand Dryer

This article was co-authored by:

Shane Le Capitaine
Thermal Processing Expert

Carrie Carlson
Technical Writer

Evolution of the Frac Sand Dryer (Drier)

Favorable market conditions have again brought rise to a boom centered around the quartz sand used in the hydraulic fracturing process; rig counts are up and the amount of sand employed per well is the highest it’s ever been, with one industry expert anticipating 2018 …

Continue Reading →

Rotary Kilns: Frequently Asked Questions (FAQs)

This article was co-authored by:

Alex Ebben
Process and Sales Engineer

Carrie Carlson
Technical Writer

Rotary Kiln FAQs

The rotary kiln is an advanced thermal processing device used in an extensive number of applications, with new uses constantly being developed.  As a cornerstone technique in engineering the raw materials and products our constantly evolving society depends on, the advanced thermal processing carried out …

Continue Reading →

What do Indirect Kilns Offer Over Direct-Fired Kilns?

This article was authored by:

Jenny Seim
Technical Writer

What do Indirect Kilns (Calciners) Offer Over their Direct-fired Counterparts?

Indirect rotary kilns, or rotary calciners, offer three major advantages over their direct-fired counterparts, as outlined below. When processing in a direct-fired rotary kiln, fine materials can become entrained in the gas and carried out to the baghouse. An indirect kiln avoids this issue because …

Continue Reading →

This Week’s Featured Articles: Rotary Kilns in Expanded Clay Aggregate Production, Potash Coarse Conditioning Drums, and Incinerator Maintenance During the Pandemic

This article was authored by:

Carrie Carlson
Technical Writer

Tire and Trunnion Grinding

Each week on our home page, we feature three articles that are highly relevant under the current market circumstances. This week, we’re highlighting: Rotary Kilns in Expanded Clay Aggregate Production Rotary Kilns in Expanded Clay Aggregate Production looks at how the rotary kiln is used …

Continue Reading →

Photo of the Week: Direct-Fired Rotary Kilns

This article was authored by:

Jenny Seim
Technical Writer

Direct-fired Rotary Kilns

This week’s photo highlights two direct-fired rotary kilns. Rotary kilns are a significant investment in any thermal processing operation. That’s why FEECO’s kilns are always precisely engineered and fabricated to meet the requirements of the specific process and material at hand. A general overview of …

Continue Reading →

This Week’s Featured Articles: Rotary Kilns in the Pigment Industry, Activated Carbon in Gold Cyanidation, and Phosphates in the Fertilizer Industry

This article was authored by:

Carrie Carlson
Technical Writer

Each week on our home page, we feature three articles that are highly relevant under the current market circumstances. This week, we’re highlighting: Rotary Kiln Applications in the Pigment Industry Rotary Kiln Applications in the Pigment Industry looks at the role rotary kilns play in …

Continue Reading →

Photo of the Week: Counter-Current Rotary Dryer

This article was authored by:

Jenny Seim
Technical Writer

Image Showing Counter-Current Air Flow in a Rotary Dryer (Drier)

This week’s image highlights a counter-current rotary dryer in 3D. In counter-current dryers, material flows in the opposite direction as the drying air. Here, the wettest material comes in contact with the coolest drying air. The counter current design provides increased thermal efficiency for materials …

Continue Reading →