All Blog Posts about ‘Question of the Week’

Question of the Week: What is a Rotary Kiln Bed Disturber?

This article was authored by:

Jenny Seim
Technical Writer

Bed disturbers are used in both direct and indirect-fired rotary kilns to promote uniform heating of the material. The bed of material should roll, not slide, throughout the kiln in order to expose fresh material to the process. This rolling action allows for even heat Continue reading →

 

Question of the Week: How Does a Pug Mill Work?

This article was authored by:

Jenny Seim
Technical Writer

Pug mills, also known as paddle mixers, are industrial mixing devices capable of conditioning, agglomerating, and mixing. Pug mills use dual counter-rotating shafts with affixed pitched paddles to create a kneading and folding over motion inside of the mixer. The counter-rotating motion lifts material up Continue reading →

 

Question of the Week: What Components does a Rotary Dryer Consist of?

This article was authored by:

Jenny Seim
Technical Writer

While rotary dryers should be customized to yield optimal processing conditions around the material and drying needs at hand, the basis of a rotary dryer is often somewhat standard. The following is an overview of some of the standard components of a rotary dryer, as Continue reading →

 

Question of the Week: What is Sintering?

This article was authored by:

Jenny Seim
Technical Writer

Sintering is the process of heating a material to a point just before melting via a rotary kiln. The objective here is to use the high internal temperature of the rotary kiln to increase the strength of the material. The most common use of this Continue reading →

 

Question of the Week: What Role does Drying Play in Non-Pressure Agglomeration?

This article was authored by:

Jenny Seim
Technical Writer

Drying plays an important role in the non-pressure agglomeration process, both before and after agglomeration. Pre-Drying Drying is often used as a method of pre-conditioning material before pelletization, to help prepare the material for agglomeration. Since moisture is added during the agglomeration process (in the Continue reading →

 

Question of the Week: In Relation to Indirect Rotary Kilns, What is the Cross-Flow Configuration?

This article was authored by:

Jenny Seim
Technical Writer

An important consideration in rotary kiln design is air flow, or the direction in which the process gas moves through the kiln in relation to the material. The cross-flow configuration is specific to indirect-fired rotary kilns. Here, the material and the process gas flow perpendicular Continue reading →

 

Question of the Week: What are the Differences Between FEECO’s Drive Assemblies?

This article was authored by:

Jenny Seim
Technical Writer

FEECO offers a variety of options in drive assemblies for your rotary dryer, cooler, kiln, or granulation drum, all selected based on the requirements of the application. Chain and Sprocket Drive Assembly Chain and sprocket drive assemblies are ideal for smaller drums running up to Continue reading →

 

Question of the Week: What Equipment is Used to Pre-Condition Material for Agglomeration?

This article was authored by:

Jenny Seim
Technical Writer

Pre-conditioning, or preparing material for agglomeration, is critical to agglomeration success; it can help improve further processing, and create a more refined end product. FEECO offers the following pre-conditioning equipment: Rotary Dryer. A material must fall within a set moisture range to agglomerate effectively. Materials Continue reading →

 

Question of the Week: What Role does Green Strength Play in Agglomeration?

This article was authored by:

Jenny Seim
Technical Writer

Green strength, also known as wet strength, refers to a pellet’s strength prior to drying. Pellets need a certain amount of strength to withstand the number of drop points during processing; this includes leaving the agglomeration equipment such as the pan pelletizer or drum agglomerator, Continue reading →

 

Question of the Week: What is Non-Pressure Agglomeration?

This article was authored by:

Jenny Seim
Technical Writer

Non-pressure agglomeration, also known as tumble growth agglomeration, is a process which uses a tumbling motion and binding agent to grow material fines or powders into a spherical pellet form.   Non-pressure agglomeration methods include: Pelletizing (rotary drum or disc pelletizer): a process where material Continue reading →