A seepage guide device at the bottom of the wet discharge film-laid anti-seepage phosphogypsum stockyard

Abstract

The invention relates to a leakage guide device at the bottom of a phosphogypsum yard for achieving wet discharge film paving leakage prevention, and belongs to the technical field of chemical facilities. The device is composed of a preliminary-stage dam, leakage guide blind ditches, a stainless steel pipe and solid wall pipes, wherein the leakage guide blind ditches comprise the two transverse leakage guide blind ditches parallel with the axis of the preliminary-stage dam and one longitudinal blind ditch perpendicular to the transverse leakage guide blind ditches; the distance between the first transverse leakage guide blind ditch and the dam foot of the preliminary-stage dam is not less than 50 meters; the distance between the second transverse leakage guide blind ditch and the first transverse leakage guide blind ditch is not less than 50 meters. The device effectively drains saturated water inside ardealite in the yard into a downstream water pool under the condition of not damaging a leakage prevention system of the phosphogypsum yard, accelerates drainage consolidation of the ardealite, increases the physical-mechanical index of the ardealite and ensures the operation safety of the phosphogypsum yard.

Description

technical field [0001] The invention relates to a seepage guiding device at the bottom of a phosphogypsum stockyard to solve the problem of wet discharge, and belongs to the technical field of chemical facilities. Background technique [0002] According to the "Standards for Pollution Control of General Industrial Solid Waste Storage and Disposal Sites" (GB18599-2001), the pH value of phosphogypsum is between 2 and 3, which belongs to the second type of general industrial solid waste. In order to protect the environment, phosphogypsum storage yards need Carry out membrane anti-seepage. After the phosphogypsum stockyard is laid with film for anti-seepage, the initial dam has changed from a permeable dam to an impermeable dam, and the slag pool formed below the initial dam crest elevation is a closed anti-seepage body. When the phosphogypsum storage yard is operated below the initial dam, the moisture and rainfall contained in the phosphogypsum discharged by the wet method ca...

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Problems solved by technology

[0003] In order to overcome the defects existing in the prior art, the object of the present invention is to provide a seepage guide device at the bottom of the wet discharge membrane anti-seepage phosphogypsum stockyard. Infiltration system, to guide the phosphogypsum saturated water below the initial dam of the phosphogypsum storage yard discharged by wet method out of the reservoir, so as to speed up the dehydration and consolidation of phosphogypsum and increase the stability of the phosphogypsum storage yard

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