Dryer Inspections and Paper Dryer Performance
The dryer section of a paper machine consumes large amounts of energy and can have a dramatic impact on the quality of your sheet and your bottom line.
Read moreFluid Handling
The Importance of Using Genuine Parts
For the lowest cost of ownership, use genuine, qualified, original equipment parts.
Read moreWritten by Al Ives on May 13, 2014.
Why Do My Steam Coils Freeze in the Winter?
Unfortunately, this happens too often. Repairing or replacing steam coils can be very expensive. Fresh air make-up steam coils are typically temperature controlled using a modulating steam control valve to regulate the discharge air temperature.
Read moreWritten by Mike Sneary on March 03, 2014.
Using Rotary Unions With Thermal Oil
Rotary unions used with heat transfer oils require special attention during repair to ensure leak-free operation. Heat transfer oils tend to “coke” at high temperatures and deposit material that can settle in the rotary union and adhere to the sealing components.
Read moreWritten by Al Ives on February 03, 2014.
The Causes of Flooding in Paper Dryers
The majority of flooding incidents can be attributed to steam and condensate system issues (poor equipment sizing, incorrect system set-points and incorrect system calibration) and mechanical issues (unreliable or incorrectly installed steam joints and syphons). In this discussion, we will focus on the steam system issues that contribute to flooding.
Read moreWritten by Wayne O'Driscoll on January 07, 2014.
Dryer Bars and Paper Dryer Performance
Dryer bars are axial bars placed on the inside of steam-heated paper dryers to create turbulence in the rimming condensate layer. If the spacing of the bars is chosen correctly, resonant waves are created in the condensate film, between each pair of bars.
Read moreWritten by Jerry Timm on May 27, 2014.
Revolutionary Change in Corrugating Steam Systems
Increased visibility into the system, from boiler to condensate return, maximum heat transfer, and improved runnability are what top-performing corrugators are saying can make a critical difference in their plants - allowing them to run consistently at cut-off knife speeds.
Written by Danielle Rohrer on April 01, 2014.
Custom Rotary Unions for Semi-conductors
A U.S. OEM designing and manufacturing semiconductor machinery required a two-passage rotary union that had to fit into a 3” (76 mm) space on one of its new machines.
Read moreWritten by Frank Marsden on February 19, 2014.
How to Recover From Flooding in Paper Dryers
When flooded dryers are identified during machine production, and if these issues are steam system related issues, there are several actions that can be taken to restore condensate flow and get the paper dryer back to normal operation.
Read moreWritten by Wayne O'Driscoll on January 21, 2014.
Identifying Flooded Dryers in Papermaking
Flooded paper dryers exhibit a number of tell-tale signs which can be used to identify that the dryer is flooded. The following troubleshooting techniques can be used
Read moreWritten by Wayne O'Driscoll on December 10, 2013.
