All Blog Posts about ‘Rotary Dryers’

Resource of the Week: Frac Sand Dryer Project Profile

This article was authored by:

Carrie Carlson
Technical Writer

Resource of the Week: Frac Sand Dryer Project Profile

This week’s highlighted resource is a project profile for a frac sand dryer. The frac sand industry is again booming as drillers pump more of the silica sand down wells than ever before. Drying is an integral step in preparing mined sand for use as Continue reading →

 

Demand for Frac Sand Expands into Canada

This article was co-authored by:

Shane Le Capitaine
Thermal Processing Expert

Carrie Carlson
Technical Writer

Demand for Frac Sand Expands into Canada

The frac sand boom continues to gain traction in the Southern United States, where drillers are pumping more sand than ever down wells in an effort to boost crude oil and natural gas production. Drilling is ramping up North of the border as well, as Continue reading →

 

Direct- VS. Indirect-Fired Rotary Kilns & Dryers: A Beginners Guide to Pyro-Processing

This article was co-authored by:

Process and Sales Engineer
Thermal Processing Expert

Carrie Carlson
Technical Writer

Direct- vs. Indirect-Fired Rotary Kilns and Dryers: A Beginner's Guide to Pyroprocessing

For over a century, rotary equipment has been widely accepted as a preferred means for the pyro-processing of bulk solids, offering distinct advantages over stationary processing equipment. As a cylinder rotates, tumbling, sliding, lifting or showering continuously agitates the material within. These actions ensure that Continue reading →

 

Question of the Week: How do Material Limitations Affect Rotary Dryer Design?

This article was authored by:

Jenny Seim
Technical Writer

What Material Limitations Affect Rotary Dryer Design

Some materials come with limitations that will steer the rotary dryer design process in one direction or another. For example, with materials that have the potential for combustion in certain settings, a direct fired dryer would not be the ideal option; an indirect dryer should Continue reading →

 

Co-Current Vs. Counter Current Drying

This article was co-authored by:

Greg Makos
Technical Writer

Shane Le Capitaine
Thermal Processing Expert

Rotary dryer

Many factors are taken into consideration when designing a rotary dryer that can both efficiently and effectively dry a material. Factors such as bulk density, specific heat, and flowability, among others, all interact to influence how the material will behave in the dryer, and subsequently, Continue reading →

 

Photo of the Week: 3D Rotary Dryer Flight Curtain

This article was authored by:

Jenny Seim
Technical Writer

Rotary Dryer Flight Curtain

This week’s photo is a 3D image of a rotary dryer flight curtain. Flights, or material lifters, are affixed to the interior of a rotary dryer. They work by picking material up, carrying it over, and showering it through an airstream as the drum rotates. Continue reading →

 

Question of the Week: How can you Prevent Build-Up in a Rotary Dryer?

This article was authored by:

Jenny Seim
Technical Writer

Preventing Buildup in a Rotary Dryer

The best way to control material build-up in a rotary dryer is to prevent it in the first place. Custom Flight Design. Build-up can be prevented through the design of less aggressive flights, or material lifters. Material tends to build-up in sharp corners, and a Continue reading →

 

Question of the Week: What are Common Rotary Dryer Add-Ons?

This article was authored by:

Jenny Seim
Technical Writer

What are Common Rotary Dryer Add-Ons

Advancing flights and knocking systems are two common rotary dryer add-ons. Advancing Flights. Advancing flights work to move material into the dryer, to prevent build-up near the wet feed discharge. Additionally, advancing flights also give material the chance to dry before it moves on to Continue reading →

 

Photo of the Week: Custom Rotary Dryers Since 1951

This article was authored by:

Jenny Seim
Technical Writer

Rotary Dryers Since 1951

This week’s photo highlights several rotary dryers under production at FEECO. The photo was taken in FEECO’s fabrication facility, just shortly after our founding in 1951. For decades, many industries have been faced with the same problem: product moisture. Depending on material composition, moisture can Continue reading →

 

Question of the Week: What are the Benefits of Testing with a Flight Simulator?

This article was authored by:

Jenny Seim
Technical Writer

Benefits of Testing with the FEECO Flight Simulator

A rotary dryer’s flights, or material lifters, work by lifting the material and dropping it through an air steam. This process creates a curtain, or a shower of material spanning the width of the drum’s interior. The curtain maximizes heat transfer between the material and Continue reading →