Light Green Machine (R) Institute

Reducing papermachine weight by 1/2 by 2025

For those interested in freely providing and discussing ideas to reduce the weight of installed papermachines (any grade) by 50% by 2025.

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Latest Activity

Steve Roush posted a discussion

1 Jul 15: Materials 11: Printing your Paper Machine in situ

In the past, we have shared our vision of "printing" a new paper machine in place rather than fabricating it elsewhere and moving the pieces to the erection site and assembling them.  We see this first happening with machine frames, and perhaps first with dryer frames. Of course, by "printing" we mean Additive Manufacturing or 3-D Printing. For more, click here...See More
Wednesday
Steve Roush posted a discussion
Jun 24
Curtis Gifford posted a discussion
Jun 18
Steve Roush posted a discussion
Jun 17
Steve Roush posted a discussion
Jun 10
Steve Roush posted a discussion
Jun 3
Curtis Gifford posted a discussion
May 29
Steve Roush posted a discussion

LGMI Weekly 27 May 15: "Exotic" Materials

If you go back thirty or thirty-five years or so, we were stainless cladding major press sections and so forth.  Fifteen years earlier, we were just painting carbon steel. Today, we do not bother with cladding, stainless is cheap enough that nearly all wet components are stainless without cladding. Relative to everything else, materials are becoming less and less expensive.  We are also seeing more substitutions where traditionally items made of metals have been made of plastics.…See More
May 27
Steve Roush posted a discussion

LGMI Weekly 20 May 15: Steps towards your own Light Green Machine

You may think we are always talking about new machine installations here at the Light Green Machine Institute. We are not. We are talking about your machine, your pulp mill, or whatever operations you are in charge of today.For more, click here.See More
May 20
Steve Roush posted a discussion

Light Green Machine Institute Weekly 13 May 15: Applications 19: Controlling and Measuring Quality

It has always puzzled me--the location of the paper machine gauge. It is at the dry end, often after the calender stack. I once worked on a machine that had three gauges, but that is another story--most just have one. This has troubled me for a long time--the location of the gauge. For more, click here.See More
May 13
Steve Roush posted a discussion

6 May 15: Applications 18: Segregation, part 2

It occurred to me since last week's column that there is another way to achieve the same idea (separating the atmosphere of the machine motors from the atmosphere of the machine) in a way that may be superior. That way is this...For more, click here!!!See More
May 6
Curtis Gifford posted a discussion
Apr 30
Steve Roush posted a discussion

LGMI Weekly 29 Apr 15: Applications 17: Segregation

Not sure this is lighter, but it probably could be.  Nevertheless, it sure makes a lot of sense. The idea is this: Treat the drive side of the dryer hood as the back wall of the paper machine hall.  In fact, if you are building a new machine, definitely treat it as the back side of the machine hall.Click here to read this week's LGMI Weekly.See More
Apr 29
Steve Roush posted a discussion

Applications 16: Chop Broke?

Forever and a day, or at least since the Fourdrinier Brothers came on the scene, conventional wisdom has been that we need broke pulpers under the machine at various locations, to collect the sheet when we are threading up or experiencing less than stellar conditions (read: sheet not getting to the reel).  If you think about it, this requires a tremendous amount of equipment, water and pumping energy. What if we could develop a new dry-broke chopper that could chop up the whole sheet and blow…See More
Apr 23
Steve Roush posted a discussion

Applications 15: The Distribution of Electrical and Control Systems

This note will annoy the heck out of some of my electrical friends, but it's something that needs to be said about MCC rooms and DCS rack rooms. The gist of this article is, are these rooms really necessary?For more, click here.See More
Apr 16
Steve Roush posted a discussion

8 Apr 15: Applications 14: The Magnetic Press

The concept is simple in that a magnetic field is introduced in one press roll to attract the opposing roll thereby forming a press nip. In previous attempts, the field was huge to pull two large masses (cast press shells) together and the consequential power consumption figures were substantial. For more, click this link.See More
Apr 8

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This site was created by the Light Green Machine Institute and is not responsible for any contributions by others to this site. The reader is cautioned to do their own due diligence on any ideas or matters posted on the site.

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