Compacting and Granulating Systems
When specifications call for an agglomerated product smaller than 8mm, it is generally made by first compacting the original material then crushing and screening it to recover the fraction having the desired mesh size.
The initial compacts can be conventional briquettes, stick-shaped briquettes or continuous flat or corrugated sheets. A particularly attractive flake-type granulated product is obtained when the thickness of the compacted sheet is substantially less than the mesh size of the product. Granulation then is required in only two directions.
Fertilizers and other products are compacted and granulated to prevent them from caking in bags or containers. Many pharmaceutical products, such as aspirin and antibiotics, are compacted in roll type machines and then granulated to produce free flowing, granular material from which tablets are made.
Complete System Design