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Cutting windmill blades

Discussion in 'Demolition' started by KSSS, Aug 27, 2019.

  1. bam1968

    bam1968 Senior Member

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    Light them on fire at night. Clean up whats left and haul it to the landfill the next morning. o_O:oops:
     
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  2. Ronsii

    Ronsii Senior Member

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    A big teepee style stack would probably go up pretty good!!!
     
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  3. Labparamour

    Labparamour Senior Member

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    You still have a couple days to get ‘em all there!
    96FA2E25-FB55-4CDB-883F-C95C87019796.jpeg
     
  4. Ronsii

    Ronsii Senior Member

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    It'll be bigger than the texas a&m bonfire!!!! and with the burning man theme we might even have some burningmen fatalities to compete with texas ;)
     
  5. kshansen

    kshansen Senior Member

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    Not sure I want to be down wind of a fire like that! I'm sure the resin those things are made with are not good to breath when burned!
     
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  6. Sberry

    Sberry Senior Member

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    What they use to cut it in fabrication work? Super Sawzall? Maybe crunch it with a big hoe and cut it with sharp edge or even one with some special designed serrated knife edge teeth. Cut them to fit, crush in to a dumpster or car crusher. Might make a blade setup from a cutting edge to start with and 2 hoes working together, one with big thumb.
     
  7. Tones

    Tones Senior Member

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  8. DMiller

    DMiller Senior Member

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    The issue with cutting the blades is not just making considerably smaller, it is the release of microfine glass fibers from them when cut, more cuts more fibers and more eventual directly associated illness. Silicosis is one, same symptoms as Asbestosis, can resolve to full blown lung cancers, skin irritant, must wrap workers in tyvek suits respirators or outside filtered air delivery systems. Large chunks buried mostly intact least human issue beyond the burial site.
     
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  9. skyking1

    skyking1 Senior Member

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    I'd figure out a jet cutter on a hoe, over a portable pan setup. Put big sawhorses on each side and drag the blade across the work area. The slurry contains the bad stuff and you can vac truck it up. If needed, cut out a piece on top to make a window to cut the bottom without flipping over. No dust, nobody touches it and the vac truck dumps that nasty into an inert fill.
     
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  10. treemuncher

    treemuncher Senior Member

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    I know this is an old post. I wonder if the contract ever came through? I've also seen the Facebook memes regarding this "not-so-green" part of the green energy solution generates in landfill consumption. These windmills also generate a lot of waste oil in their lifetimes, too. Not really as green as they are touted to be but then, sheep are non-thinking creatures that is easily led about through manipulations of unicorn fart inspired ideas designed to sway the masses.

    Everything that I know about water jet cutters is that they are very SLOW and expensive to maintain. Unless it was a stationary unit mounted to the blade or ground, I doubt it would be feasible to operate with a hoe. Too much precision required with this method to allow a hoe to keep a cut going. Using the hoe to manipulate the pieces to a set saw system should work with a fluid coolant & contaminant containment system.

    A stump grinder attachment or a quarry saw attachment on a hoe might work but too much residual dust would be produced to be a safe solution unless it had a high flow flood coolant system.

    Something medium slow cutting with minimal dust production should be best. A slow operating, hydraulic guillotine type device or shear system with misting coolant spray in an enclosed chop chamber would likely be the best option for a long term contract with these blades. I should think that a Vee shaped blade with serrated edges would be effective or multiple Vee tips depending on force required to penetrate the medium. Mount that on a system like a car crusher frame where the turbine blades could be dragged through with a hoe, cable drag system or feed table and use the hoe to handle the resultant pieces to load out trucks or trailers.

    Like a customer once asked me, "Can you build that?"
    My response was, "Throw enough money at a project and you can build anything."
     
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  11. Tugger2

    Tugger2 Senior Member

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    The wire saw sounds like the most practical idea,it was my first thought . But as a crane owner id take a set of 48" box leads and run a guilotine made from 6" plate with some extra thickening on them ,something up around 8000 lbs . My 75ton would eat that stuff up quick
     
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  12. Tones

    Tones Senior Member

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  13. KSSS

    KSSS Senior Member

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    I didn't take the job. My plan was to use a high flow wheel saw on a skid steer to cut it down. I planned on wearing a respirator, replace the cab filter after the job. I wasn't overly sure the wheel saw would work, although I felt it would, I just didn't want to become an owner of blade if it didn't. If I get a chance to try it out without the price of owning the blade if it didn't, I will try it out. The hills above me are loaded with windmills. Someone is going to have do something with the replacements.
     
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  14. ianjoub

    ianjoub Senior Member

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    <iframe width="560" height="315" src="" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
     
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  15. Mike_IUOE

    Mike_IUOE Well-Known Member

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    We use a Kinshoffer demo shear for building demo. They cut through steel, concrete, just about anything. They just chew through it. I would think it would make quick work of fiberglass. One of these on a 490 you can process a lot of material fairly quick
     

    Attached Files:

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  16. DMiller

    DMiller Senior Member

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    Chewing thru is the problem, as in the video above no matter the added water cannot control the dust release, would have to immerse the cut line under water to effectively control dust/fiber release and yes there are construction workers in Demo that are now suffering from Silicosis.

    Then there is what are they to do with all the excess debris? Placing within concrete just worsened the Demo contaminate issues not in long fiber form so is pretty well useless for new blade mat materials, still ends up a landfill residual.
     
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  17. skyking1

    skyking1 Senior Member

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    The good thing is it is truly inert once buried so they could make some decentralized landfills for them. No groundwater issues, etc.
     
  18. DMiller

    DMiller Senior Member

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    Inert yet space prohibitive.
     
  19. doublewide

    doublewide Senior Member

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    So much for green energy.
     
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  20. skyking1

    skyking1 Senior Member

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    you have better ideas?
    :)