RECOMMENDED DRYER DIFFERENTIAL PRESSURES

• This Technical Information Paper provides guidelines for establishing operating differential steam pressures for conventional paper machine dryers.
• The DP that is required to achieve stable condensate evacuation depends on the behavior of the condensate in the dryer.
• The primary requirement in selecting the operating differential pressure is to ensure that the condensate is being removed as fast as the steam is condensing.
• The quantity of blow-through steam can be expressed in mass flow (kg/hr or lb/hr) or as a percentage. The percentage can be expressed either as a percentage of the total steam flow to the dryer or as a percentage of the amount of steam that has condensed.

It Provides information on:

• Condensate behavior.
• Operating Objectives.
• Dryer siphon types.
• Differential pressure control.
• Stationary siphon differential pressure.
• Rotary siphon differential pressure.

It Benefits:

• Engineers.
• Technical Director.
• Operations Manager.
• Quality Manager.
• Analyst.
• Laboratory Personal.