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Controlling Dust through Pelletizing

By Chris Kozicki, Ron Eichhorn and Carrie Carlson, FEECO |

Tumble-growth agglomeration can reduce dust in solids-handling processes. Here’s how it works Handling and processing bulk solids appears in nearly every industrial sector, from energy to agriculture. Dust is a ubiquitous and challenging issue when working with bulk solids, because it can create hazardous or unsanitary work environments, transportation problems and financial waste in the form of lost product. It is not surprising then, that each year, companies go to great expense to control and mitigate dust. One of the most effective ways to manage dust is through pelletizing — a form of tumble-growth agglomeration (particle size enlargement) that produces rounded or spherical granules. Pelletizing can be an invaluable tool in managing dusty bulk solids that opens opportunities in beneficial reuse applications, creates marketable products and mitigates the handling and processing challenges associated with dust. The term “pelletizing” is often used to refer to various types of agglomeration. This article references the term as a form of tumble-growth agglomeration carried out on a disc pelletizer. Figure 1. Pelletizing solid materials can reduce dust in solids-handling processes by forming rounded granules (left) from…
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