When it comes to agglomerating a material, people are often faced with the decision of choosing between a rotary drum agglomerator and a disc pelletizer. Though the choice may seem overwhelming at first, there are many things to take into account that will help you make the right decision for your material. Material Specific Considerations Many times ...
For over 60 years, FEECO has been a leader in the agglomeration industry, converting dusts, bulk powders, and sludges into free-flowing, easy to handle pellets. From agglomeration feasibility tests, to equipment design, to a full-scale production plant, FEECO’s unique ability to test materials and provide one piece of equipment, or an entire process solution, has ...
The challenges presented by the handling of material fines is an issue faced across many industries. Whether working with fertilizers, ores, or coal, materials which are difficult to handle, or dusty, can benefit greatly from agglomeration. Because there are many processes by which a material can be agglomerated, people are often overwhelmed at where to ...
The following piece is an excerpt from an article was written by Charles R. Harbison and presented at the 10th Annual Bulk Material Handling Seminar in 1977. It has since been edited and condensed for the purpose of this article. Continued from Part 2 Feed material preparation is quite critical to successful pelletizing. Proper premixing of feed ...
The following piece is an excerpt from an article written by Charles R. Harbison and presented at the 10th Annual Bulk Material Handling Seminar in 1977. It has since been edited and condensed for the purpose of this article. Continued from Part 1 The techniques of balling, pelletizing, micro-pelletizing, conditioning, and granulation are all accomplished as a ...
The following piece is an excerpt from an article written by Charles R. Harbison and presented at the 10th Annual Bulk Material Handling Seminar in 1977. It has since been edited and condensed for the purpose of this article. ABSTRACT Agglomeration is an old technique. Awareness of its value is just beginning to be realized in industries ...
This year, the Advanced Sustainable Iron and Steel Making Center (ASISC) held its fourth annual meeting, and FEECO International attended. The ASISC is a Michigan Tech based program, geared towards “fostering a research base that promotes synergy between academic and industrial interests, leading to a new generation of sustainable, economical iron and steel making technologies.” ...
The Institute for Briquetting and Agglomeration (IBA) held its 32nd biennial conference and workshop last month in New Orleans, Louisiana, and FEECO International was in attendance. With a long history in the agglomeration industry, FEECO has been involved with the IBA for many years. At this year’s conference, FEECO’s Brett Rittenhouse presented a paper on ...
Biogas has been a popular topic of discussion lately, as the need for energy increases, and sources are being run dry. Sometimes referred to as swamp gas, landfill gas, or digester gas, biogas is generated from anaerobic digesters such as animal manure, sewage, and municipal solid waste. When upgraded to the necessary level of purity, ...
For the past sixty years, Feeco International has made a name for itself in the thermal processing industry, supplying equipment and solutions to several industries. As an industry leader, thousands of companies have come to rely on Feeco’s expertise in the design, implementation, and service of rotary dryers, among other equipment. Feeco’s superior quality and ...
The old adage, “give a man a fish and he eats for a day, teach a man to fish, and he eats for a lifetime,” rings very true for what we at Feeco International do every day. Any company can sell a product, but not just any company can deliver a solution to last a ...
Another key phase in rotary dryer design is determining the best flights to use inside the rotary dryer. Flights are like specially designed fins, that pick up the material as the rotary drum rotates, and then gradually drop the material through the stream of gas, like a clothes dryer. This falling of the material is ...
Another characteristic to look at is the size of pellets. This will combine with specific heat, heat transfer, and percent moisture to help determine the retention time, or the amount of time the material needs to be in the dryer. In turn, the retention time will help determine the needs of a rotary dryer. Retention ...
What does atmosphere have to do with rotary dryer design, you ask? Well actually, a lot. The needs of a rotary dryer can differ greatly from region to region, due to different climates. Things like humidity, temperature, and elevation can play a big part in determining the specifics of your rotary dryer. Let’s take humidity ...
After you have determined the characteristics of your material, it is necessary to look at the limitations set by your material, as these too will play a part in the design of the rotary dryer. For example, some materials may not be able to come into contact with oxygen. In this case, an indirect rotary ...
The heat transfer properties of a material are also important to be aware of before sizing up your rotary dryer. It is possible for two materials to have the same percentage of moisture, but very different heat transfer properties, which will call for different drying needs. Let’s look at an example. Let’s pretend that glass ...
Another key factor in sizing a rotary dryer is determining the specific heat of a material. Specific heat is defined as how much energy it takes to raise 1 gram of material 1 degree Celsius. In more simple terms, it’s how resistant a material is to heating. Materials can have very different values of specific ...
