Removing sharp doctor blades can be a challenging task. The function of a doctor blade is to scrape glues, wood pitch, stickies, and fibers from rolls.
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Written by Korey Jerome
on February 10, 2014.
Posted in Maintenance, Roll Cleaning, Doctoring, Cleaning, Filtration
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.
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Written by Al Ives
on February 03, 2014.
Posted in Maintenance, Fluid Handling
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.
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Written by Wayne O'Driscoll
on January 21, 2014.
Posted in Maintenance, Optimization, Fluid Handling
The name Kadant rings a bell for many, especially within the paper industry. Built upon the well-regarded Lodding and Vickery brands, Kadant Solutions is a leading supplier of roll cleaning blades (doctor blades for those from the pulp and paper market), roll cleaning blade holders, and roll cleaning systems for industrial processes.
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Written by Vicki Hunsberger
on October 22, 2013.
Posted in Maintenance, Doctoring, Cleaning, Filtration
A rotary joint, also referred to as a rotary union or rotating union, is a rotary sealing device that connects rotating equipment to fixed piping for the transfer of steam, water, thermal oil, coolant, hydraulic oil, air, and other media.
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Written by Frank Marsden
on March 19, 2013.
Posted in Maintenance, Rotary Joints & Unions, Fluid Handling
Conventional storage tanks with sparge pipes (simple pipes with drilled steam distribution holes) tend to have uneven water temperature control, steam hammer, heavy vibration caused by collapsing steam bubbles, and low low energy efficiency as steam bubbles escape to atmosphere due to incomplete condensation.
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Written by Mike Sneary
on February 19, 2013.
Posted in Maintenance, Auxiliary Steam Equipment, Fluid Handling
Flexible metal hose is used on the inlet and outlet connections of rotary joints and rotary unions to allow for the rotary joint movement and for thermal expansion of piping.
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Written by Al Ives
on December 11, 2012.
Posted in Maintenance, Rotary Joints & Unions, Optimization, Fluid Handling