All Blog Posts about ‘Question of the Week’

Question of the Week: What is Calcination?

This article was authored by:

Jenny Seim
Technical Writer

Calcination is the process of heating a material to cause chemical dissociation (separation). Calcination is a common process, and is often used in the creation of inorganic materials, such as the dissociation of calcium carbonate to create calcium oxide and carbon dioxide. It can also be Continue reading →

 

Question of the Week: What is the Difference Between Hygroscopic and Hydrophobic Materials?

This article was authored by:

Jenny Seim
Technical Writer

Simply stated, hygroscopic materials absorb moisture, whereas hydrophobic materials do not absorb moisture from the environment. Knowing which category a material falls under plays an important role in our work in the Innovation Center; it affects the way in which a material is both stored Continue reading →

 

Question of the Week: What are Ball and Tube Knocking Systems?

This article was authored by:

Jenny Seim
Technical Writer

Ball and tube knocking systems are used to combat material build-up inside of a rotary drum. Here’s how they work: tubes, which hold solid balls, are attached to the drum’s exterior. While the drum rotates, the tubes drop the balls on the drum via gravity. Continue reading →

 

Question of the Week: How does the Binder Spray System Affect Pelletization?

This article was authored by:

Jenny Seim
Technical Writer

Pelletizing on a pan pelletizer requires the help of a binding agent to achieve agglomeration. This is accomplished through the use of a spray system. The binding agent, and the way it is dispersed, plays a role in successful agglomeration. The following variables should be Continue reading →

 

Question of the Week: What Drive Assembly is Best for your Rotary Kiln?

This article was authored by:

Jenny Seim
Technical Writer

The drive assembly is the component that causes a rotary kiln to rotate. While a variety of drive assembly arrangements are available, the selection of one type over the other is dependent on the drive horsepower and the size of the kiln. FEECO offers the Continue reading →

 

Question of the Week: What Material Characteristics Influence the Design of a Rotary Kiln?

This article was authored by:

Jenny Seim
Technical Writer

Many material characteristics, such as bulk density and specific heat, influence how the material will behave in the rotary kiln, and subsequently, how the kiln must be designed to produce the required results. The following material characteristics all influence the sizing and design of a Continue reading →

 

Question of the Week: What Causes Rotary Dryer Misalignment?

This article was authored by:

Jenny Seim
Technical Writer

Rotary dryer misalignment is oftentimes the result of improper base installation. Misalignment in the base will quickly spread through the rest of the drum, causing wear and damage to other drum components. In addition, misalignment can occur naturally over time as part of normal rotary Continue reading →

 

Question of the Week: What is Pelletizing?

This article was authored by:

Jenny Seim
Technical Writer

Pelletizing is a non-pressure (tumble growth) agglomeration method whereby material fines are processed into pellets. It is used throughout a number of industries to transform difficult to handle powders and fines into a more easily handled, and valuable product. Pelletization involves the tumbling of material Continue reading →

 

Question of the Week: Why is Pre-Conditioning Necessary Prior to Manure Granulation?

This article was authored by:

Jenny Seim
Technical Writer

There are numerous characteristics that make raw manure an unideal feedstock for granulation. Pre-conditioning manure must take place before the manure can be effectively used as a feedstock for optimal granulation to occur. Pre-conditioning focuses on: Particle size distribution: Large particles need to be removed Continue reading →

 

Question of the Week: What is the Difference Between Pelleting and Pelletizing?

This article was authored by:

Jenny Seim
Technical Writer

Pelleting and pelletizing are two terms often used interchangeably, though their processing methods do differ. Pelleting commonly refers to the extrusion process, where cylindrical pellets are formed by forcing material through a dye. It is most often used with wood, fuel and feed products (such Continue reading →