Large Pellet Cooler

Counterflow Cooler Machine

The counterflow cooler is mainly used to cool ABC Machinery series of complete biomass pellet production, and make the high-temperature pellets from the pellet mill cool to the temperature that is a little higher than the room temperature in order to guarantee the whole production line to produce pellets continuously, which is convenient to store and transport.

The pellet cooler is always used in large pellet line. ABC Machinery ring die pellet line has this type of cooling machine.

Cooling machine is connected to a pellet machine.

Cooling machine is connected to a packing machine.

Main Parameter of Pellet Cooler

1. This machine consumes lower energy, and the cold air goes through the materials level according to the vertical direction from the bottom. The new air firstly contacts with the bottom cold pellets then gradually contacts the top hot pellets through the pellets column. The final discharged air temperature is nearly the same with the initial temperature of the pellet inlet, that means that  the air can take away the most heat. Relatively speaking, it needs less cold air, so you can use a smaller draught fan.
2. Even cooling. Because the cold air can go into the cooler from the bottom and rises gradually and evenly through the bed of pellets until it is discharged. So a same bed of pellets temperature differs a little.
3. Good quality of pellets. The cold air entering from the bottom contacts the cold pellets and during the rising process, the top pellets contact the preheated hot air. That greatly reduces the temperature difference of pellets and the cooling air which avoid the pellets damage, like crack, broken, etc produced by the chilling improving the pellet quality.
4. No condensation and fog formation. In the counterflow cooler, because the air is heated heavily, the air temperature keeps above the dew point, so it won’t has condensation phenomenon.