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.

Written by Jerry Timm on June 24, 2014.

The Importance of Using Genuine Parts

For the lowest cost of ownership, use genuine, qualified, original equipment parts.

Written by Al Ives on May 13, 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.

Written 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.

Written by Wayne O'Driscoll on January 21, 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.

Written by Jerry Timm on May 27, 2014.

Papercon 2014 Coming to Nashville

Started in 2008 and organized by TAPPI, PaperCon is the largest annual pulp and paper technical program in the world. This year PaperCon is coming to the Nashville Convention Center in Nashville, Tenn.

Written by Danielle Rohrer on April 25, 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.

Written 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.

Written 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.

Written by Wayne O'Driscoll on January 07, 2014.

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Fluid Handling