Reclaiming and purifying circulation environment-friendly system and reclaiming and purifying method for waste residues and wastewater of mines

Abstract

The invention relates to a reclaiming and purifying circulation environment-friendly system and a reclaiming and purifying method for waste residues and wastewater of mines. The system is characterized in that a discharge opening of a vibration sieve is directly over against an inlet of a primary sand-water separating system; a water outlet of a water tank of the primary sand-water separating system is directly over against a sieve surface of a superfine silt-sand-water separating system through a water supply pipe; a sewage outlet of the superfine silt-sand-water separating system is directly over against a primary separation tank through the water supply pipe; a mixture of sand, water and silt precipitated in the primary separation tank is fed to the sieve surface of the superfine silt-sand-water separating system through a sewage pump and a conveying pipe for re-separation of the silt, sand and water; an overflow opening is formed in the upper part of the primary separation tank and is communicated with a medicament mixing channel through an overflow groove; the outlet of the medicament mixing channel is directly over against a secondary separation tank in which a mud pump is arranged; the muddy water precipitated in the secondary separation tank is fed to a feed opening of a horizontal type centrifugal machine; the outlet of the horizontal type centrifugal machine is directly over against a tertiary precipitation tank through a discharge pipe; a water pump is arranged in the tertiary precipitation tank, and delivers the clear water to a vibration sieve for cyclic utilization through a water return pipe.

Description

technical field [0001] The invention relates to a mine waste waste water recovery and purification circular environmental protection system and a recycling purification method which can not only obtain ultrafine sand from mine waste waste water, but also separate mud in mine waste water to obtain clear water for circulating water utilization. Manufacturing field of waste residue wastewater discharge water circulation system. Background technique [0002] At present, mining companies have invested millions, or even tens of millions, of equipment in tailings treatment and wastewater recycling. However, the operating effect of the environmental protection system of mining companies is not very satisfactory. First, it cannot achieve complete recycling. Utilization and solid-state discharge; second, large investment, huge equipment consumption, large area, and meager results; third, many shortcomings such as leakage, emission, leakage, etc., which cannot achieve the real effect o...

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Problems solved by technology

[0002] At present, mining companies have invested millions, or even tens of millions, of equipment in tailings treatment and wastewater recycling. However, the operating effect of the environmental protection system of mining companies is not very satisfactory. First, it cannot achieve complete recycling. Utilization and solid-state discharge; second, large investment, huge equipment consumption, large area, and meager results; third, many shortcomings such as leakage, emission, leakage, etc., which cannot achieve the real effect of solid waste ore solid discharge and waste water recycling; Fourth, the ultra-fine sand in the slag above 80 mesh and below 200 mesh (including 200 mesh) cannot be recycled, and can only be stored as muddy water, which not only causes waste of resources, but also creates a huge safety hazard. If the body collapses, it will cause irreparable huge casualties and property losses. For example, in Shanxi Province, the collapse of the mine waste water storage dam caused huge casualties and property losses that the entire downstream village was submerged.

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