Lead-Zinc Ore Crusher

The Critical Crushing Process in Lead-Zinc Beneficiation

Lead-zinc ores (primarily galena PbS and sphalerite ZnS) require precise size reduction to liberate valuable minerals while minimizing overgrinding. As a global manufacturer of mineral processing equipment, Liming Heavy Industry engineers Lead-zinc Ore Crusher that deliver optimal particle size distribution for flotation efficiency.

Stage 1: Primary Crushing – ROM Ore Reduction

• Challenge: Hard, abrasive ores with unconfined compressive strength (UCS) up to 180 MPa
• Solution: High-torque Jaw Crusher with deep crushing chambers
  Liming Equipment:
  • C6X Series Jaw Crusher (e.g. C6X125, C6X160)
    • Eccentric forged shaft for ≤400mm feed size
    • 20% longer service life in sulfide ore applications
  • PE Series Jaw Crusher (e.g. PE900×1200)
    • Wedge adjustment for 75-200mm output

Stage 2: Secondary Crushing – Particle Shape Optimization

• Challenge: Producing cubical particles (15-50mm) to prevent flotation reagent waste
• Solution: Multi-cylinder Hydraulic Cone Crusher
  Liming Equipment:
  • HPT Series Cone Crusher (e.g. HPT300, HPT500)
    • Laminated crushing for complex Pb-Zn-Cu ores
    • Automatic iron passing protection
  • HST Series Cone Crusher (e.g. HST250)
    • ≤25mm product for high-sphalerite ores

Stage 3: Tertiary Crushing – Flotation Feed Preparation

• Challenge: Achieving 3-10mm optimal liberation size
• Solution:Vertical Shaft Impact (VSI) Crusher
  Liming Equipment:
  • VSI6X Sand Maker (e.g. VSI6X1263)
    • Rotor centrifugal crushing for selective galena liberation
    • 45% less slimes generation vs conventional crushers

Integrated Auxiliary Systems

• S5X Vibrating Screen (e.g. S5X1860-4)
  • Polyurethane screens for 4mm classification
• B6X Belt Conveyor
  • Dust-proof design for toxic lead dust containment

Technical Advantages of Liming Lead-Zinc Crushers

Equipment Performance:

• Throughput: 520 TPH sphalerite-dominant ore
• Final Product: 92% below 8mm
• Wear Part Replacement: 4,800 operating hours

Why Global Mining Operators Choose Liming

“Over-grinding galena increases slimes by 15-30% – precise crushing is essential for Pb recovery.”
– Liming Mineral Processing Engineer

Tailored Solutions for:

• Massive Sulfide Deposits: C6X + HPT circuit with 10:1 reduction ratio
• Oxidized Zinc Ores: Mobile K3-2175 Plant with integrated VSI6X
• Complex Pb-Zn-Ag Ores: Grinding-pre-crushing with HST315 Cone Crusher

Request Ore Test Crushing Service:
→ Submit your ore sample for free size reduction analysis using Liming C6X/HPT/VSI6X crushers.