Loading and unloading pneumatic tanks (videos)

Discussion in 'Experienced Truckers' Advice' started by Scarecrow03, Sep 19, 2009.

  1. doubledragon5

    doubledragon5 Road Train Member

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    that happens, but if those filters/bags were not changed, it can happen even if the silo isn't full.. I see this all the time...
     
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  3. jaykal81

    jaykal81 Bobtail Member

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    Jul 5, 2009
    coudersport,pa.
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    Thanks --I needed to see that. I am brand new to this ...I was wondering If ya could show me from step one the procedures on loading and unloading..which vales are on off ect. I'll be haulind sand for gas co.
    HELP
    Jay thank you if ya could
     
  4. Scarecrow03

    Scarecrow03 Road Train Member

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    Sand is very coarse and can damage the hose and discharge line (product line) if you run the pressure too high. The hose will wear out a lot faster than with finer products such as the limestone dust I haul.
     
  5. jaykal81

    jaykal81 Bobtail Member

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    Jul 5, 2009
    coudersport,pa.
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    thanks...yeah , sand clogs the lines more to i have noticed. I'm trying to learn the steps operating the tank think you could draw me a picture...lol....i'm serious.
     
  6. Scarecrow03

    Scarecrow03 Road Train Member

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    The best thing anyone ever taught me was to do the same steps in the same order every time.

    When I start to unload, the first thing I do is hook up my hose to the silo. While walking to the back of the tank, I close the blow down and the regulator valves.

    Once I'm hooked to the silo, I hook up my hot air hose to the blower. Then I get in the truck and turn on the PTO. I ALWAYS put the truck in gear before I flip the PTO switch. Make sure the truck is in neutral, then ease out the clutch.

    I bump the idle up to 800-900 rpm then go outside to listen for any air leaks while pressure builds in the tank. Of course I've already made sure all hatches are completely secured prior to unloading. However there still could be a small air leak somewhere.

    Once my tank gauge reads between 14-15psi, I crack open the regulator halfway or so, then open up my product valve all the way. You should see the Line gauge jump up to the same psi as the tank, or a little more.

    I don't know if that's the kinda picture you wanted me to draw or not. If you want an actual drawing, I don't think I could do that. My artistic abilities are pretty much nil. :biggrin_25524:
     
  7. Johnny99

    Johnny99 Johnny be Good

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    I did that at Proctor & Gamble in Sacramento. A dust cloud 200 ft in the air. The lid was on hinges. The alarm on the silo wasn't working.
     
  8. RickG

    RickG Road Train Member

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    Scarecrow03 Thanks this.
  9. Hubcap

    Hubcap Medium Load Member

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    Wait a minute, do I know you? Ash Grove, Cemex, Big Brown?

    Takes me about 45 min but our dust collector is pretty well shot. Not a lot of vacuum at the up pipe.
     
  10. grumpyoldlady

    grumpyoldlady Bobtail Member

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    Oct 11, 2009
    Henderson, Tennessee
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    My sis is heading to Wyoming to haul frac sand. She's been OTR for many years. What does she need to know about the driving part?? Anything different about sand in a pneumatic trailer? Also, she's little. Think she can handle the physical part?
     
  11. wis bang

    wis bang Road Train Member

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    Small should not be to big of a problem. I had an older owner operator doing dry bulk w/ one arm crippled from childhood [polio] He had to bear hug the hose up onto the silo fitting and then use his 'bad' hand to close the ears. That was a 4" stainless steel hose for plastics. Sand should use a rubbber hose [like cement] so she should be OK without having to give every hose a bear hug. The man I'm talking about had a 'hose coat' under the sleeper just to wear when hooking up.
     
    grumpyoldlady Thanks this.
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