Mineral Processing
HENGJI MAGNETICS: Optimizing Mining Operations with Advanced Magnetic Separation
HENGJI MAGNETICS delivers cutting-edge magnetic separation solutions that revolutionize mineral processing efficiency. Our technologies boost productivity across three critical areas: pre-concentration waste rejection, wet processing grade enhancement, and tailings resource reclamation. Proven to increase recovery rates by up to 92%, reduce OPEX by 18-40%, and transform waste streams into profit centers – we empower mines to achieve new benchmarks in sustainability and ROI.
I. Pre-Concentration & Waste Rejection
Boost efficiency and cut costs upstream with our dry processing solutions:
• HCG Series Dry Separators
▫ Processes 0-12mm raw ore (magnetite/hematite).
▫ 20-30% waste rejection rate, increasing feed grade by 8-15%.
▫ Reduces grinding energy consumption by 40%.
• RCT Permanent Magnetic Drums (5,000 Gauss)
▫ Removes tramp iron (bolts, shovel teeth) from conveyor belts.
▫ Protects crushers and minimizes downtime losses.
II. Wet Processing & Grade Enhancement
Maximize mineral recovery and product quality:
• Strong Magnetic Minerals (e.g., Magnetite):
▫ CTB Counter-Current Tanks process slurry (≤0.5mm).
▫ Upgrades concentrate from 45% to 68%+ Fe.
▫ Reduces iron loss in tailings to <0.5%.
• Weak Magnetic Minerals (e.g., Hematite/Manganese):
▫ GTC High-Gradient Separators capture fine particles (-0.074mm, 80% feed).
▫ Achieves >92% recovery rate with 3m³ water saved per ton vs. conventional systems.
III. Tailings Resource Recovery
Transform waste into value:
• Ferrosilicon Medium Recovery (Coal):
▫ CTN Dual-Drum Separators recover 99.8% of magnetite media from dense-medium coal slurry.
▫ Saves >¥2M/year in media costs (10Mtpa plant).
• Associated Metal Extraction (e.g., Tantalum-Niobium):
▫ QCG Multi-Roll Separators upgrade tailings:
· Nb₂O₅ grade surges from 0.8% to 6.2%, increasing value 7-fold.
Proven Results Across Minerals:
• Iron Ore Project (China):
▫ HCG-0816 dry separator pre-discarded waste from 1.2Mtpa ore.
▫ Cost reduction: ¥18/ton (18% lower OPEX)
• Lithium Project (China):
▫ GTC-2500 wet high-gradient separator reduced iron in lepidolite concentrate from 800ppm to 50ppm.
▫ Battery-grade lithium carbonate qualification rate rose to 99%.