Coating plays a pivotal role in producing roofing granules that not only provide the desired aesthetic appearance, but that can also withstand constant exposure to the elements. Uniformly and consistently coating granules to spec, however, can be a challenge. One of the best ways to Continue reading →
This week’s photo shows agglomerated fly ash. Fly ash is a process by-product resulting from fines rising with flue gases during the production of power in coal-fired power plants. Although fly ash has traditionally been landfilled, it has been discovered as a valuable additive in Continue reading →
Some limestone pelletizing operations use a pin mixer to condition the material prior to processing it on a disc pelletizer. While this step is not required, adding a pin mixer to a limestone pelletization process offers many benefits to the overall agglomeration operation at hand, Continue reading →
As sulfide nickel ore deposits decline in both number and grade, many industry experts see upgrading low-grade laterite ores as an essential step in satiating rising nickel demand in the transition to a low-carbon economy. A combination of reduction roasting and magnetic separation has emerged Continue reading →
This week’s photo shows a rotary drum gear before and after replacement. The gear on the left is exhibiting excessive wear and inadequate lubrication. This is an example of extreme wear, and was caused by tramp material entering the gear mesh. At right, the gear Continue reading →
As specialty fertilizer products become increasingly more commonplace, coating has emerged as a preferred way to include beneficial additives and nutrients, reduce caking, and prevent dust, among other objectives. More recently, it’s also become recognized as an effective way to improve nutrient use efficiency (NUE), Continue reading →
Granulation drums, also known as agglomeration drums or granulators, are pivotal to a wide array of industrial processes, helping producers working with bulk solids to condition and agglomerate their materials for downstream processing, easier handling, and improved performance. In selecting agglomeration equipment and evaluating the Continue reading →
This week’s photo comes from the FEECO Fabrication Center, and shows a bearing being mounted onto an adapter with the help of a hydraulic nut. Bearings are part of the support structure for a rotary drum, located on trunnion bases, with the pinion shaft sitting Continue reading →
Agglomeration drums and granulation drums are two of many terms used to describe rotary drum equipment. Granulation drums are typically used in the agricultural industry for fertilizer production. The tumbling motion inside of the drum creates uniform fertilizer granules that are easy to handle and Continue reading →
This week’s photo shows a bulk density test in action. Here, our process expert is weighing raw material prior to processing in the Innovation Center. The ability to test bulk density ensures the product will meet the needs of its desired application. Bulk density is Continue reading →
