Pneumatic Dry Bulk Trailers

JimFergerson

New member
We just picked up a small fleet of Pneumatic Dry Bulk Trailers that carry Flyash from Coal Fired Powerplants, back down to a local Concrete Facility.

The yard manager suggested using the Liquid Hammer that they use to clean their Cement Mixers. The Liquid Hammer does a good job of removing the concrete, but it has absolutely no effect whatsoever on the black stains on the side of the these trailers.

On our first painted trailer, i spent several hours trying to remove the stains, and finally after testing a small spot, i discovered that after applying our SH Concrete "Mix" with a pump-up sprayer, it does a fine job of breaking down the Coal. I ended up spraying down the entire trailer with the straight mix, brushing and then rinsing. Spraying Sodium Hydroxide above my head with a sprayer was less than pleasant.

The yard manager was pretty impressed with the results. But, it takes a LONG time to get them white again.


It's a whole different animal trying to wash the Aluminum ones...


Any idea's to make it go more smoothly?

:bow-down:
 
I would build a spray system that works for you if you want to continue using a pump up. Be careful with your reclaim equipment when using the caustic soda. You may want to two step the trucks. Your going to kill the paint with caustic, the two step might take less caustic and spare the paint a little...
You may also consider making an SH and surfactant mix, then brushing it on. Once they're clean, get a frequency that requires less harsh chemical!

As for the aluminum, two step all the way! But, find a good non caustic, high alkaline soap.
 
Jim, give me a call when you get a chance.
 
Back
Top