Patent ID: 11092380

Abstract:
A method of drying frac sand without heat is comprised of constructing a drainage system and placing sand on top of a perforated top layer thereon. The drainage system has multiple layers through which liquid passes to dewater sand resting thereon. At the bottom of the drainage system, perforated collection pipes, at least partially surrounded by rocks, collect and carry the liquid to a collection pond for reuse. A cellular confinement layer has sections of panels which, upon expansion, have cells filled with rocks. A woven monofilament geotextile fabric layer comprising woven monofilament geotextile fabric sheets sewn together has sized openings which allow fluid, but prevent sand from passing through the openings. The top layer comprises high density polyethylene perforated sheets welded together. A watertight liner sits below the collection pipes and the cellular confinement layer. Protective layers above and below the watertight liner prevent rocks from damaging same.