<a href="http://www.pelletcooler.com/wp-content/uploads/2011/07/IMG_00771.jpg"><img class="aligncenter size-medium wp-image-14" title="IMG_0077" src="http://www.pelletcooler.com/wp-content/uploads/2011/07/IMG_00771-300×225.jpg" alt="" width="300" height="225" /></a>The <em>pellet cooler</em> is used to reduce the temperature of hot pellets from pellet mill to ambient temperature, if hot and moist pellets are not cooled, they may brake in to powder again. It is a normally counter flow type cooler where the airflow is opposite to the direction of flow of pellets.
The cooler works on the principal of blowing air through columns of hot & moist pellets, which results in evaporation of moisture from the pellets. For moisture evaporation, heat is taken from the pellets leading to cooling of pellets.
Two basic types of <em>pellet coolers</em>: horizontal counter flow type and vertical counter flow type. The horizontal pellet cooler, pellets are conveyed on a Pellet Coolerperforated steel mesh by transmission belt through where cool air stream could pass. The vertical type counter flow coolers are coolers work with pellets fall by gravity into a chamber through where the air is sucked by a fan to upside.