Insights on the production process

• Raw material preparation: The raw materials for pellets and briquettes is  the collected biomass from managing green urban spaces, agricultural waste, wood waste, or other biomass materials. The raw materials are first dried to a moisture content of 10-12% for pellets and 12-15% for briquettes. This is done in a hot air dryer. The dried raw materials are then ground to a particle size of 2-5 mm for pellets and 5-10 mm for briquettes. This is done using a hammer mill. The ground raw materials are then sieved to remove any large particles that could interfere with the briquetting process. 

• Pellet or briquette forming: The prepared raw materials are then formed into pellets or briquettes using a briquetting machine. 

• Hydraulic presses: Hydraulic presses use pressure to force the raw materials into shape. The pressure is applied by a piston. The hydraulic press is the most common type of briquetting machine for making pellets.

• The briquetting process is typically carried out in a continuous manner. The raw materials are fed into the briquetting machine at one end, and the formed pellets or briquettes are discharged at the other end. The speed of the briquetting machine is adjusted to ensure that the pellets or briquettes are formed to the desired size and shape.

• Pellet or briquette cooling: The dried pellets or briquettes are then cooled to room temperature. This is done to prevent them from cracking or breaking. The cooling process can be done using air.

• Pellet or briquette packaging: The cooled pellets or briquettes are then packaged for shipping and storage. The packaging material should be moisture-proof to prevent the pellets or briquettes from absorbing moisture. The pellets or briquettes are typically packaged in bags, boxes, or bulk containers.