ACCUMULATOR OF LIQUID WASTES AT INDUSTRIAL ENTERPRISES Russian patent published in 2010 - IPC E02B7/06 

FIELD: construction.

SUBSTANCE: invention relates to hydraulic erection of sludge accumulators, tailing dumps and ash disposal areas for storage of wastes, which are capable of hardening and forming deformation cracks. Accumulator comprises earth reservoir, overtile and header washed with hardening wastes, which is made of steel pipes and is equipped with protective coating on the outside. Protective coating is made of polymer roll material and prevents damage of steel pipes as deformation crack is formed in hardened wastes, at the same time the following condition is observed where τ_d - design value of shear stresses between hardened wastes and steel pipe occurred due to specific forces of adhesion and friction; σ_i._d - design value of tensile stress increment in wall of steel pipe as crack opens; δ_d - design thickness of steel pipe wall; α - value of crack opening; E_d - design module of elasticity as material of steel pipe wall stretches. Protective coating may be made of polyethylene film and contain a layer of consistent lubricant in the base. Steel pipes may contain a layer of polyethylene applied (sputtered) at manufacturing facility.

EFFECT: invention makes it possible to increase reliability of accumulator due to prevention of steel pipes damaging in formation of deformation cracks in hardened wastes.

4 cl, 4 dwg