All Blog Posts about ‘Question of the Week’

Question of the Week: What are the Benefits of Using Ceramic Proppants?

This article was authored by:

Jenny Seim
Technical Writer

Proppants are hard microspheres that are injected into well bores to “prop” open rock fissures, allowing oil and natural gas to flow out. While frac sand is the most commonly used proppant, ceramic proppants offer a tailored solution in demanding drilling settings. Greater crush strength. Continue reading →

 

Question of the Week: What is the Difference Between a Pin Mixer and a Pug Mill?

This article was authored by:

Jenny Seim
Technical Writer

Pin mixers and pug mills are industrial mixing devices with each offering their own distinct advantages and capabilities. Oftentimes, the material itself dictates which piece of equipment is best for the operation at hand. Pug mills are used for mixing, agglomerating, and conditioning. They utilize Continue reading →

 

Question of the Week: What do Indirect Rotary Kilns Offer Over their Direct-Fired Counterparts?

This article was authored by:

Jenny Seim
Technical Writer

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 →

 

Question of the Week: What is a Pneumatic Hammer Knocking System?

This article was authored by:

Jenny Seim
Technical Writer

A pneumatic hammer knocking system is designed to control material build-up inside of a rotary drum. The hammer is mounted above a strike plate on the drum, and delivers an adjustable amount of force as set by the operator. This force “knocks” the drum and Continue reading →

 

Question of the Week: What is the Importance of a Sieve Analysis During Agglomerate Feasibility Tests?

This article was authored by:

Jenny Seim
Technical Writer

A sieve analysis measures particle size distribution, and more specifically, what percentage of on-size, over-size and under-size pellets are produced from the agglomeration process. The analysis is an important part of agglomerate process and product development, as it confirms whether or not the agglomeration process Continue reading →

 

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 →