In the upper portion of the sandwich with hydrocyclone guide blade and packing filter layer.

The results of analysis prove that the vibration damping and stabilized guidance of saw-blade can be realized by using the aerostatic guide, which can improve stability of band saw-blade.

Selection of the primary and secondary airflow rate, the guide Angle of the blade, the primary air ratio as well as the material for manufacture of the burner nozzle are given.