The given diagram illustrates the manufacturing process of wood pellets, a type of fuel used for heating buildings. These pellets are suitable for both pellet stoves and pellet furnaces.
Overall, the process of producing wood pellets consists of seven steps, beginning with the arrival of sawdust from a sawmill and ending with the packaging of pellets into 18-kilo (40-pound) bags for sale.
The process begins when sawdust arrives from a sawmill. It is then fed into a hammer mill, where it is crushed into uniform fibers. Next, the fibers are dampened with steam to prepare them for the following stage. They are then forced through holes in a pellet machine, shaping them into pellets.
Following this, the newly formed pellets are cooled to solidify their shape. Afterward, workers vacuum off any loose dust to ensure product cleanliness. In the penultimate step, the pellets are packed into 18-kilo (40-pound) bags, making them ready for sale.
