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How to Optimize Placer Gold Recovery with Chinese Gravity Equipment:Jigs,STBL60 Centrifugal Concentrator & Shaking Tables

1. Core Equipment Specifications

EquipmentTechnological InnovationKey Parameters
JT5-2 Jig Dual-layer PU screenCapacity: 20-100 t/h
Power: 0.78kW·h/t
STBL60 Centrifugal Concentrator Dynamic G-force adjustment
Alumina ceramic lining
Feed size: 0.02-2mm
Water consumption: 2.5-4m³/h
6S-4500 Shaking Table  WC-Co rifflesRecovery limit: 0.037mm
Stroke: 8-22mm

2. Process Economics Analysis

2.1 Four-Stage Recovery Flow

A[ROM (0.8g/t Au)] –> B(Trommel Screening)  

B –> C(Primary Jigging)  

C –> D(STBL60 Centrifugal Concentration)  

D –> E(6S-4500 Shaking Table Cleaning)  

E –> F(Concentrate Dewatering)  

2.2 Cost-Benefit Metrics

IndicatorConventional ProcessUpgraded SolutionImprovement
Processing Cost ($/t)8.25.8-29.3%
Overall Recovery (%)85.293.5+8.3pp
Water Usage (m³/t)4.23.1-26.2%

2.3 Operational Optimization

  • The STBL60 increases middlings grade from 0.32g/t to 6.5g/t.
  • IoT system reduces water & electricity consumption by 18-24%.
  • Ceramic drum extends maintenance cycle to 1200h.

3. STBL60 Operational Protocol

3.1 Parameter Matrix

Slurry PropertyG-forceRotation SpeedRinse Pressure
High density (>1.8g/cm³)80-100G850-950rpm0.25-0.35MPa
Clay-rich (>15%)60-80G750-850rpm0.35-0.45MPa
Fine particles (<0.1mm)100-120G950-1050rpm0.15-0.25MPa

Content Value

  1. Technological Innovation: STBL60 Centrifugal Concentrator achieves breakthrough improvement in fine gold recovery rate.
  2. Economic Verification: Cost-benefit model based on 2025 real mine data.
  3. Operation Standardization: Dynamic parameter matrix guides precise equipment control.
  4. Environmental Compliance: Fully aligns with 2025 new national pollutant discharge standards.

This solution upgrades through equipment replacement and data analysis, constructing a Made-in-China gravity separation system with both technological advancement and economic feasibility, providing a new-generation solution for placer gold mine development.