The Light Green Machine Institute
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15 Feb 17: Unconventional layouts, part 4--we have to change

The controversy we have stirred up in the last couple of weeks concerning paper machine building layout is healthy.  We must change going forward if we hope to progress as an industry.  For some, it is difficult to see what change might bring and they may see it as creating more problems than they already have.   Others accept the challenge.
 
Throughout the industrial age, processes have changed. For instance, the way steel is made today, as compared to when Bessemer invented the process, is hardly recognizable. Transportation systems, land, rail, air and water, have all changed dramatically and continue to change. We must, too.
 
So, we will keep talking about this...
 
In the meantime, stalwart contributor Bryan Creagan has some closing thoughts on the comments we published last week:
 
Jim, controversy is good as long as something constructive comes out of it. My two cents, for what it's worth is as follows.

To Mark Harrison; think of the hood as an internal skin to the building structure. Life expectancy is then transferred to the internal skin rather than the structure itself. We still need to be able to pull equipment out so maybe the skin should be above the building crane?

To Manuel Bahena Olvera: Your response is quite understandable when you consider the problems of a dryer section as they are designed today. The new design would be very different from what is in your mill and from what is considered BAT (best available technology) today. New machines are 100% "Unirun" except for a curl control section so there are no pocket felt rolls and only one top felt for each section.
 
By the way Manuel, I was a machine operator, a maintenance crew member and a machine designer over the past 45 years. Jim has also spent time in both operations and maintenance, so please look up his bio.

Regards,
 
Bryan Creagan
Montreal, Quebec
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If you can help us locate known installations of steel dryers and steel Yankees, please click here and let us know where they are or, if not exact location, your ideas on how we can find them. 

Thanks in advance for your cooperation.
 
with "LGMI Frontiers" in the subject line. 

  
As always, your comments will be appreciated.
 
 


Think light!

Brian Brogdon, Ph.D.
Executive Director

or

Jim Thompson
Founder
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