1) The blowing pressure should match the tube diameter and length to ensure effective blowing, complete combustion, and prevent any unburned deoxidizer from being blown out of the tube by the air flow.

2) The blow-off time should be adjusted according to the diameter and length of the tube, with the standard being the complete removal of suspended metal oxides from within the tube.

3) The nozzle height should be adjusted according to the capillary diameter to ensure good alignment. The nozzle should be cleaned once per shift, and removed for cleaning during extended downtime. To ensure uniform blowing of the descaler on the inner wall of the capillary, an optional installation is used at the nozzle blowing station, along with a rotating air pressure.