LIQUID INDUSTRIAL WASTE STORAGE UNIT Russian patent published in 2012 - IPC E02B7/06 

FIELD: hydraulic engineering.

SUBSTANCE: the invention relates to hydraulic engineering and can be used while creating sludge reservoirs, tailing ponds and ash-dumps for waste capable of solidifying and creating cracks. The storage unit has a storage tank dug in ground, a launder and a collector for solidifying waste. The collector is made of steel pipes and fitted with the protective layer on the outside, consisting of cellular plastic with sealed pores which covers the pipes and protects them from damage caused by cracks in solidified waste. The following condition is fulfilled: d_acc=b_l(ε_compk_comp-ε_hhk_hh), that is, b_l=d_acc/ε_compk_comp-ε_hhk_hh, where d_acc - is the acceptable amount of vertical movement for two solid blocks in relation to each other at the place where the steel pipe is cracked. b_l - the thickness of protective layer above the steel pipe; ε_comp - the relative amount of volume compression of the protective layer material, which corresponds to the maximum acceptable for the pipe durability pressure p_comp, created by waste; ε_hh - is the relative amount of volume compression of the protective layer material, which corresponds to the calculated natural pressure p_rhh , created by water and waste and applied to the protective layer during the collector operation; k_comp - is the quotient which considers deformation in the cross-section of the pipe caused by compression pressure p_comp and its uneven distribution; k_hh - is the quotient which considers deformation in the cross-section of the pipe caused by calculated natural pressure p_rhh and its uneven distribution.

EFFECT: prevented steel pipe damage caused by cracks in solidified waste.

10 cl, 6 dwg, 2 ex