Spray Nozzles for the Paper & Pulp Industry

Spray Challenge - Precise wetting and misting

The moistening, wetting and drying prevention applications require that a precise and even amount of spray is delivered to the target. Too much spray can be disastrous as can too little.

Fine Spays at Low Volumes

In order for precision spraying to occur the flow rate of the fluid often needs to be very low. At the low flow rates required for moistening applications it is often not possible to form a finely atomized spray by direct pressure nozzles. This is because there is simply not enough kinetic energy in the fluid being sprayed to break up the fluid into a coherent spray. In order to overcome this problem a secondary source of energy needs to be introduced to form the spray pattern. The XA range of air atomising nozzles uses a compressed air (or other gas) to break up the fluid and this means that even at very low flow rates fine, precisely metered, spray patterns can be formed. 

Diagram Showing the Operating Principle of Air Atomising Nozzles

Deflection air atomising flat fan nozzle and external mix flat fan nozzle

Air atomising nozzles come in a variety of spray patterns: Flat fan (depicted above), full cone and hollow cone patterns are all available. Typically for wetting and moistening applications flat fans nozzles would be used in series to target a moving conveyor below or full cone nozzles would used to apply moisture to a static target. 

Nozzle selection

Full details can be found by clicking on the product boxes below.

Flat Fan, Air atomising, Internal mix nozzle (XApf) XAer air atomising , full cone, external mix, narrow spray angle nozzle

Paper and Pulp Key Spray Application

Paper and Pulp Key Spray Challenges