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Material Moisture Content Before pellet fuel can be produced, the raw material used must have a suitable and consistent moisture content. On average to produce quality pellets, with a good mechanical durability, requires a raw material moisture content of around 15%. To put this into perspective virgin wood residues usually contain around 60-70% moisture. Therefore the biomass raw material may require drying, before pellet compression in the pellet mill can take place. Particle Size For Drying Before the biomass can be dried down to the necessary 15% for pellet production, it must also be reduced to a small particle size if required. A suitable particle size of 5mm or below is required to achieve an efficient and accelerated drying process ready for pellet production. Therefore before entering the biomass into the dryer it should be processed through a crusher or hammer mill. This can be achieved through using either the SJ or X series of equipment. |
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GJ Rotary Hot Air Biomass Drying Solutions For drying small volumes of biomass in a more manually operated process, the GJ Hot Air Current Series is suitable for most applications. However for drying larger volumes of biomass in a more automated pellet process plant, the GJ Rotary Hot Air Dryer is a more suitable piece of equipment. The material retention time in a hot air rotary dryer is far greater than in a air current dryer, therefore the particles are exposed to the hot air for several minutes. The raw material enters the rotary dryer through a hopper, with a variable speed auger. The fan then pulls the material into the dryer chamber. Paddles within the dryer move the material along from one end to another. Finally the material reaches the opposite end of the rotary dryer and is carried through a series of pipe work to the cyclone separator and rotary star feed. |
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GJ Rotary Hot Air Biomass Dryers
GJ 200 Rotary Dryer Features: Hot Air Stove, Rotary Dryer, Fan, 10m Pipe Work, Cyclone and Air Lock Capacity: Input = 300-700Kg/h, Output = 200-500kg/h Fuel Consumption: 50Kg/h
GJ 250 Rotary Dryer Features: Hot Air Stove, Rotary Dryer, Fan, 10m Pipe Work, Cyclone and Air Lock Capacity: Input = 600-1000Kg/h, Output = 400-800kg/h Fuel Consumption: 70Kg/h |
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Pellet Production and Combustion Solutions - PelHeat Ltd |
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