... cooler output:1-1.5t/h 2.cool wood,feed,fertilizer pellet:2-8mm 3.1.5+1.1+11kw ... 5. 2.pellet cooler by adopting counter flow theory, cold air will go from bottom to top, pellets will go ... goes on, pellets will pulse at the cooler bottom, cold air will meet with cooled pelltes ,hot air will ... meet with hot pellets , in this way will avoide cold air meeting with hot pellets to be broken, especially pellets ...