Coating drums are used throughout a number of industries to carry out particle coating applications. Commonly used after agglomerate processing, coating drums work by tumbling particles in a rotating drum and spraying them with the desired coating material. This may be to improve product handling, …
Smelting is a pyrometallurgical process that uses thermal processing techniques to purify copper through chemical reactions. And while most focus is given to the furnaces involved in this process, one piece of equipment has not only helped to increase the efficiency of copper smelting, but …
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 …
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 …
Rotary drums are used throughout a number of industries to carry out a range of different objectives, from conditioning to granulation (agglomeration), mixing, and coating. Part of their diverse applicability lies in the ability to customize their internals for a truly optimized processing solution. In …
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, …
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 …
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 …
As specialty fertilizer products become increasingly more commonplace, coating drums have emerged as a preferred way to incorporate beneficial additives and nutrients, reduce caking, and prevent dust in fertilizers, among other objectives. More recently, coating drums have also become recognized as an effective way to …
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 …