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Sample Answer :
The diagram portrays manufacturing process of wood pellets, which are usually used for generating heat at home. The process generally consists of three main steps involving conversion of
sawdust, processing with steam, and removing unbind sawdust from the pellets.
The first step of wood pellets
production is the conversion of sawdust, which are taken from sawmill factory,
into fibers with homogeneous size. This process is undertaken by hammering
sawdust. Subsequently, the fibers are steamed to make them wet by using hot
steam. Following the steaming process, hot wet fibers are forced to pass
through a hole in the pellet machine to generate pellet. The pellets are then
subjected to a cooling step for removing heat. Cooled pellets contain several
unbind sawdust that are removed by vacuuming method. Finally, pellets are
packaged into 18 kg size into a forty pound bags, which are ready to be sold
to customer for burning in furnace and stoves.
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