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1 Product Introduction
Lead Zinc Tailings Treatment Plant is an advanced engineering solution designed for the comprehensive management, dewatering, and resource recovery of waste materials generated during lead zinc mineral flotation. Lead zinc tailings typically contain high concentrations of heavy metal ions, fine residual minerals, and process chemicals that present severe environmental and storage challenges. This plant integrates high-efficiency thickening, automated filtration, and water purification technologies to transform hazardous slurry into high-density dry cakes and clean, reusable water. It eliminates the traditional risks associated with wet tailings dams, prevents environmental pollution, and helps mining operators achieve true zero liquid discharge compliance.
2 Operating Principle
The operating principle of this system is mainly divided into three core stages. The first is the high efficiency concentration stage, where lead zinc flotation tailings pulp is fed into a deep cone or high rate thickener, where automatic dosing systems introduce specialized polymers to force rapid aggregation and settling of the fine lead and zinc sulfide particles. The second is the mechanical dewatering stage, where the concentrated high-density underflow mud is pumped into heavy duty chamber filter presses or vacuum disc filters to compress the solids into a low moisture dry stackable cake for safe disposal or backfilling. The final stage is the chemical and water purification stage, where the clear overflow water undergoes advanced oxidation and precipitation to neutralize residual flotation reagents, heavy metals, and lead zinc ions before being redirected back to the plant grinding and flotation loops.
3 Features
High volumetric solid liquid separation efficiencyThe plant utilizes heavy duty compaction technology to compress fine tailing particles into a solid cake with low moisture content, making the dry waste safe for surface stacking or structural backfill. Complete closure of process water loopsThe integrated purification circuit recovers up to ninety five percent of process water, significantly lowering fresh water consumption charges and preventing toxic mine water discharge into local ecosystems. Targeted heavy metal chemical stabilizationAdvanced reagent conditioning effectively precipitates complex lead, zinc, and iron ions from the wastewater, avoiding chemical accumulation that could otherwise interfere with selective lead zinc flotation recovery. Robust automated control systemThe plant uses an integrated PLC architecture to continuously monitor slurry density, filter cake pressure, and water chemistry metrics, maintaining uninterrupted operation with minimal manual labor requirements. Elimination of high risk tailings dam structuresBy processing slurry into dry stackable materials, the system completely removes the structural failure risks and long term maintenance costs tied to conventional wet tailings storage facilities.
Technical Specifications
Model |
Tank Diameter (mm) |
Tank Depth (mm) |
Settling Area (m²) |
Capacity (m³/h) |
DCT-3 |
3000 |
4400 |
21 |
60–70 |
DCT-6 |
6000 |
8800 |
85 |
210–260 |
DCT-9 |
9000 |
13500 |
310 |
570–700 |
DCT-12 |
12000 |
17500 |
510 |
800–1200 |
DCT-15 |
15000 |
19000 |
1200 |
1000–1500 |
DCT-18 |
18000 |
22000 |
2000 |
1400–2100 |
DCT-20 |
20000 |
22800 |
2700 |
2100–2600 |
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