... are 3 types of the biomass burner : 1.horizontal wood powder burner ;suit for wood powder , sanding powderad so on, 60-80mesh;2 ... .vertical wood pellet machine; suit for wood pellet , diameter is 6-8mm;3.vertical sawdust ... shell, cotton shell, cotton straw, rank grass...) forests (wood, bark, tree leaves, wood shaving , bamboo powder, sawdust) and municipal waste.2. ...