Cement, fly ash and those types, unloading. Top air?

Discussion in 'Tanker, Bulk and Dump Trucking Forum' started by Brettj3876, Oct 25, 2017.

  1. rbrtwbstr

    rbrtwbstr Road Train Member

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    I'm thinking he's referring to the old exhaust blowers. Every one I've ever seen had what looked like a little turbo mounted in the exhaust pipe.
     
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  2. x1Heavy

    x1Heavy Road Train Member

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    Yes I was.

    They usually sat outside the cab under the stack itself.

    Crank engine to 2300, lock it there with the old manual lock and engage the Exhaust Blower after you have installed the main tank feed hose to it. Check the Mr Pyrometer 5 minutes in and as soon you reach 14 pounds start unloading product.

    I greatly preferred either the Baltimore LeHigh's Export Elevator's air systems or the 400 horse electric pump assembly that when they are going you can take it straight to 15, open up all the pots and be empty in no time. (A stunt... but it has been done)
     
  3. Zeviander

    Zeviander Road Train Member

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    And here's me, running pneumatics for almost two years now, not realizing that product would even unload without "top air".

    Granted, I do a lot of gravel and aggregate (salt, potash, phosphate, lime, etc) but I guess I've got some new things to try. Especially if I do more of that casting sand we've been picking up lately (finer than flour).

    I've got 29.5 ton of pebbled lime down to about an hour and a half now, so I think I'm doing pretty good.
     
  4. RockinChair

    RockinChair Road Train Member

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    You definitely are - especially if you can do that whole load in an hour and a half without plugging up or blowing a hose (I hate blowing off pebbled lime).
     
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  5. wis bang

    wis bang Road Train Member

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    Worked summers at a cement terminal. newly installed stack turbos had to be 'run in' and tested. We had a length of 3" pipe with a gate valve and a port with a pressure gauge. clamp that on and throttle up and engage the turbo. start closing the gate valve until you read 15 PSIG while examining the oil feed and returns for leaks. I think we had to hold the pressure for 5 or 10 min.

    Always on second shift after the office had closed...

    I had a neighbor come over to tell me my spark plugs were making interference on his antenna TV.....
     
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