Pneumatic pros and cons

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The Pneumatic Tanker Thread

Improve at offloading Pebble lime

"That kid that don't know nothin'"

Unloading Time for a Pneumatic Sand Truck

 

Pretty sure the poster was being facetious?

 

That is not too bad. 30 a hour to unload times 5 or 6 tank loads daily. Thats quite plenty. Miles pay will approach 600 daily supporting the ready mix.

 

Ok. When you take the tank to 12 PSI. Open the rear pot. As long you have the line pressure to move the product in power sufficient to slurry in that big hose snaking between your trailer and silo feed pipe you can stand on it and feel in your feet that is flowing like water.

Thats what you want. Pot empty in a certain amount of time. Close it. Open line pressure to full pull tank down to 10 for a moment blow that silo feed pipe clean.

Open middle pot once tank is back to 12 (15 max but you plug instantly if something goes wrong, particularly on humid hot days)

feed enough line pressure to make your hose snake again. Stand on hose feel the air and product flowing with your feet.

(Have a 5 gallon bucket in case your ring gasket leaks at the fixture to your trailer's unload pipe connection.)

keep a eye on that tank pressure and line pressure. If the hose should lay there, close pot, open line all the way and check real fast with your feet it should flow. If you dont feelt hat flow you are plugging up. Keep tank off and feed all the line air you got. Bang on silo pipe.

You will know in the next minute if it flows again. Eyeball the silo drop plate up top to see dust of product flowing. It has to be getting dusty up there. If not? you are plugged. Quit feeding line air before you bust your check valve and ruin your tank trailer. Unclog the hose and beat the product out of the silo feed pipe. You will be there a while.

If you are empty in second pot, close it, open third pot.

Now we are really getting down to it. This is where you pick up the rubber mallet.

Once that third pot is about empty, open the other two and let her rip with full line and pound on all three to make sure you have empty pot. If one has product. Open the viberators and shake em out. Otherwise your trailer will begin to sing.

Don't let it sing too long if you are on plant air with 19 other tankers unloading off the same air, you risk plugging them all up. if you are by yourself then you know shes empty when you stand on your hose one last time and its flat nothing but air.

Close pots. Your tank will be down to about 8 or so.

Check for human souls on the right of your truck. Open the tank dump pipe and thats the end of the show.

Pack up, roll up and wipe off gauges etc put tools etc away and drive off.

Some of my posts are over simple yes. But its for levity purposes (Humor) Ive already explained once that I like to take a very complicated concept like a Nuclear Reactor making power and say boil water, spin a magnet with steam presto let there be light.

God did the same thing when he turned on the sun. Its not that complicated. /snarky.

Oh the last time? ABout 1999. With B&B Concrete in Little Rock with a old international Pay star 9400 that broke twice and collasped once. The cheapsakes never bought anything to replace it in my time. They are now running gasoline tankers in fine discbrake airride western star day cabs and so forth. wonders never cease.

 

Remember it is on duty unless you drop and go on your 10. but that is between you and the carrier

When I ran the rail yard we had (2) full time loaders and they washed, when needed between loads. we had a garden hose hooked to hot or cold, some aluminum brightener and Zep exterior wash, couple of 4" and 6" flue brushes..

Often they keep tanks in specific resins ABS, PE, Styrene, etc. so a good amount was top-loaded/return home MT stuff where you would just drop and go home.

Other carriers run long and have to clean between due to different shippers, etc. as you wouldn't top load the same product when a different shipper is involved.

All depends on the carrier's operation, customer base, etc.

 

That sounds like a lot of work. I just check the sight glass to make sure product is moving, then as long as I’m parked straight I can sit in my truck and see the line pressure gauge in my mirror. Listen for the pitch of my blower to change, then I’ll jump out and open the next hopper before pressure drops too much.

 

Indeed.

My Trainer taught me a certain way I literally do not know better. Its not work perse, sitting on one of the drives minding Mr Hose.

I am one of those people my family has always said, I find the hardest way to solve a problem. I can blame the state school for that. 2+2 does not equal 4 until you can prove it with extra work on paper.

Bah....

 

I see "blue flash" with a pneumatic almost daily around here. Don't know anything about 'em though