Wood Pellet Mill Machine-Counterflow Coolers

When the pellets leave the wood pellet mill machines, they are very hot, soft and releasing moisture. Before the pellets can be used or stored they must first be left to cool and dry. The simplest form of pellet cooling is to spread the pellets out, and let them cool at room temperature.

Counterflow Coolers for Wood Pellet Mill Machines

The counterflow process is the refined technology of exposing processed product to an upward moving stream of ambient airflow.

As the air rises through the product, it is warmed, increasing the moisture carrying capability of the air. The product entering at the top of the cooling chamber is exposed to the warmest air available within the cooler, minimizing temperature shock. The product exiting the bottom of the unit is cooled to within 5-10° of the ambient air temperature. The product and air have 'opposite flows. The gradual heat transfer greatly enhances the product quality and reduces stressing and fines.