Lead Zinc Ore Production Line and Process Solution

Lead-Zinc Ore Production Line and Process Solution

I. Solution Overview

This lead-zinc ore production line solution focuses on the different characteristics of lead-zinc sulfide ore and lead-zinc oxide ore, adopts the technical route of "flotation as the main process, supplemented by the combined process", and realizes the high-efficiency separation and recovery of lead and zinc resources through the optimization of the process design and lead-zinc ore equipment configuration. Lead-zinc ore beneficiation production line and process solutions pay special attention to solving key technical problems such as lead-zinc separation and iron sulfide treatment, featuring flexible process, high recovery rate, economy and environmental protection.

Second, lead-zinc ore dressing process flow details

1. Crushing and screening section

   • Three sections of a closed-circuit crushing system:

     • Rough crushing (jaw crusher) → medium crushing (cone crusher) → fine crushing (high pressure roller mill)

     • Vibrating screen closed-circuit cycle, to ensure that the particle size into the mill ≤ 10mm

2. Grinding and grading section

   • Stage grinding process:

     • One-stage ball mill (closed circuit with spiral classifier) grinding

     • Second stage ball milling (closed circuit with cyclone group) grinding

3. Flotation sorting section

   • Priority flotation process:

     • Lead flotation: lime slurry, selective inhibitor, high efficiency recovery agent

     • Zinc flotation: copper sulfate activation, special collector

     • Sulfur flotation: recovery of pyrite if necessary

   • Mixed-Separate Flotation Process:

     • Mixed flotation: neutral pH conditions, composite collector

     • Lead-zinc separation: selective inhibitors after dosing

   • Equivalent floatable flotation process:

     • Stage 1: simultaneous flotation of readily floatable lead-zinc minerals

     • Stage 2: Flotation of remaining zinc minerals

     • Concentrate removal: lead concentrate dezincification and zinc concentrate deleadification respectively

   • Asynchronous flotation process:

     • Segmental adjustment of chemical regime and flotation parameters

     • Ensure optimal flotation conditions for each mineral

4. Concentrate Processing Section

   • Concentration: High-efficiency thickener (bottom stream concentration ≥65%)

   • Filtration: ceramic filter (cake moisture ≤ 12%)

   • Drying: steam drying system (concentrate moisture ≤8%)

Third, lead-zinc ore production line core equipment configuration

Fourth, lead-zinc ore beneficiation program technical advantages

1. High-efficiency separation technology

   • Specialized inhibitor system (lead-zinc selective separation)

   • Compound activator to improve zinc recovery

   • Multi-stage selection + sweeping process (lead recovery ≥90%, zinc recovery ≥88%)

2. Energy saving and consumption reduction design

   • High-pressure roller mill process energy-saving 40%

   • Flotation machine impeller optimization design saves 25% energy

   • Thermal energy recovery system reduces drying energy consumption by 30%.

3. Environmental solutions

   • Wastewater recycling utilization rate ≥95

   • Tailings dry storage technology

   • Exhaust gas treatment system (standardized discharge)

V. Typical Application Cases

1. Sulfide lead-zinc ore project

   • Raw ore grade: 2.5% Pb, 3.8% Zn

   • Lead concentrate: 65% Pb, 92% recovery rate

   • Zinc concentrate: 52% Zn, 89% recovery rate

2. Complex lead-zinc ore project

   • Adoption of asynchronous flotation process

   • 15% increase in Pb-Zn recovery

3. High Sulfur Lead-Zinc Ore Project

   • Synchronous recovery of sulfur concentrate (sulfur grade ≥45%)

   • Sulfur recovery ≥85

VI. Customized Service

1. Ore characterization study

   • Process mineralogical analysis

   • Lead-zinc ore selectivity test

   • Expanded continuity test

2. Process Solution Design

   • Process configuration optimization (selecting the best process according to ore properties)

   • Specialized lead-zinc ore flotation chemicals formulation development

   • Design of drawings according to site conditions and process flow

3. Production support services

   • Lead-zinc ore beneficiation equipment production and supply

   • Lead-zinc ore equipment installation and commissioning

   • Production technology training

   • Continuous process optimization

Lead-zinc ore production line and process solutions can choose the most suitable lead-zinc ore flotation process according to the specific ore properties (lead-zinc endowment state, symbiotic relationship, oxidation rate, etc.), to ensure optimal recovery and techno-economic indicators, welcome to inquire to get the lead-zinc ore beneficiation solutions and quotations.