Biomass Pellet Plant & Machinery Solutions

Loose husk, baled straw and cane trash arrive in sacks or bales and are opened out into a feed hopper. Residues differ in bulk density, so the feed rate is controlled rather than tipped straight into the line.

Long stalk, straw and bagasse are cut down to a short, even length before anything else happens. Unlike wood, this material is fibrous and stringy, so it is chopped and shredded rather than chipped.

Field-collected residue carries soil, sand, grit and stones picked up during harvesting and heaping, along with baling wire and nails. Earth is separated out by air and by density and iron is pulled out magnetically, since abrasive and hard material wears out dies and hammers.

Residue that has been stored in the open or cut green is dried down before grinding. Light, low-density material dries in a moving air stream rather than in a heavy rotating drum.

Dried residue is broken down to a loose, even meal. Grinding is done under extraction because husk and stalk dust is light and travels.

Different residues are blended so the press sees a consistent feed instead of alternating batches of husk and stalk. The blend is then compressed into pellets.

Pellets are cooled, screened to take out broken material and fines, and filled into woven sacks. Sack weight is checked and recorded before the sack is closed.