All Blog Posts about ‘Question of the Week’

Question of the Week: Why Add Binder to the Agglomeration Process?

This article was authored by:

Jenny Seim
Technical Writer

Binder in the Agglomeration Process

While some materials may be self-binding, in most cases, the right binder is vital to agglomeration success. In general, binders:       Improve bonding forces and pellet durability. Help to achieve the appropriate wet strength and dry crush strength. Are inexpensive and readily available. Continue reading →

 

Question of the Week: What Causes Rotary Dryer Misalignment?

This article was authored by:

Jenny Seim
Technical Writer

Causes of Rotary Dryer Misalignment

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: How does a Rotary Kiln Work?

This article was co-authored by:

Carrie Carlson
Technical Writer

Process and Sales Engineer
Thermal Processing Expert

The interior of a rotary kiln.

Rotary kilns use extremely high temperatures combined with controlled retention times to cause a chemical reaction or phase change in a material. At certain temperatures (different per each material), a material will undergo a chemical reaction or phase change. This is often necessary to bring Continue reading →

 

Question of the Week: What is Heat Setting?

This article was authored by:

Jenny Seim
Technical Writer

Heat Setting

Rotary kilns use heat to cause a physical change or chemical reaction in a particular material, and can be utilized to carry out a variety of processes. One of the more common processes carried out in a rotary kiln is heat setting. This refers to the act of Continue reading →

 

Question of the Week: What are the Variables to Consider when Operating a Pan Pelletizer?

This article was authored by:

Jenny Seim
Technical Writer

Disc Pelletizer in Operation

Pan pelletizer operation is oftentimes considered an art because of the many mechanical and process variables that must be properly combined to achieve the desired pellet characteristics. A trained operator is necessary to create the most efficient pelletization process, and the most ideal end-product. The Continue reading →

 

Question of the Week: What Causes Refractory Failure in a Rotary Kiln?

This article was authored by:

Jenny Seim
Technical Writer

What Causes Refractory Failure in a Rotary Kiln

Cycling and chemical incompatibility are the two main causes of refractory failure in a rotary kiln. Cycling Cycling is the heating up and cooling down of a rotary kiln, and it is the largest source of refractory failure. Refractory expands with the kiln as it Continue reading →

 

Question of the Week: What Factors should be Considered in Bucket Elevator Design?

This article was co-authored by:

Jenny Seim
Technical Writer

Tim Matzke
Material Handling Expert

A FEECO bucket elevator.

Bucket elevators are an efficient means of transporting material from one location to another, though they do not necessarily come in a one-size-fits-all configuration. Due to their versatility in working with a wide range of materials and industries, bucket elevators must be specifically designed on Continue reading →

 

Question of the Week: What is Attrition?

This article was authored by:

Jenny Seim
Technical Writer

What is Attrition

Attrition transpires when agglomerates break down into fines- an undesirable occurrence that results in excess dust and waste product. It is commonly seen with granules produced via compaction granulation, and is caused by the rough, jagged edges rubbing against one another and wearing down the Continue reading →

 

Question of the Week: What are Indirect Coolers Used for?

This article was co-authored by:

Carrie Carlson
Technical Writer

Shane Le Capitaine
Thermal Processing Expert

What are Indirect Coolers Used For

While indirect coolers are used far less commonly than their direct cooling counterparts, they are often the best solution in a few specialty applications. A direct cooler relies on direct contact between the material and chilled air in order to cool the material, which can Continue reading →

 

Question of the Week: What are Common Paddle Mixer Applications?

This article was authored by:

Jenny Seim
Technical Writer

Common Paddle Mixer Applications

Paddle mixers are relatively flexible devices, able to mix, condition, and agglomerate a diverse range of bulk solid materials. They are also adept at processing both liquid and solid feeds, and can be used as stand-alone pieces of equipment, or prior to processing in a Continue reading →