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Success Story

Pressure Power Pump Installations Promote Low Cost and Line Efficiency

Smurfit-MBI in New Westminster British Columbia has been producing quality containerboard for over 50 years for a variety of nationally well-known retailing customers. A project to increase the width of the double facer table to produce more containerboard resulted in a call to Andrew Reynolds.

The old cascading system would occasionally result in lower line speeds when running double walled board. Increasing the deck width raised a concern that line speeds may drop even more due to the temperature required to cure the board. After reviewing the project, a proposal was made to Ed Baarscheers, the Chief Engineer and Project Manager.

Individually control the steam to each of the three hot deck sections to maintain temperature by using a combination of salvage steam from the double backer and line steam from the boiler. Additionally, to maintain the required temperature, the individually controlled sections needed the condensate to be removed as soon as if formed. Pressure powered pumps on each plate section insured condensate was removed immediately, regardless of the upstream steam pressure.

The results were reduced costs, improved quality, improved line speeds, and a system that is flexible to the meet the production requirements for all of Smurfit-MBI’s customers.

Mr. Baarscheers reports, “We are pleased with the system. It has performed as we hoped for and anticipated.”

 

Did You Know?
Return Condensate to the Boiler

An attractive method of improving your power plant’s energy efficiency is to increase the condensate return to the boiler. Returning hot condensate to the boiler makes sense for several reasons. As more condensate is returned, less make-up water is required, saving fuel, makeup water, and chemicals and treatment costs. The energy in the condensate can be more than 10% and up to 25% of the total steam energy content of a typical system.

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