Fine Coal Dewatering & Flotation Thickening Circuit
National Coal & Energy Corp
Thermal Power & Coal Preparation
Separation & Filtration
3 Machinery Types
Fine Coal Dewatering & Flotation Thickening Circuit
National Coal & Energy Corp sought to modernize their clean coal dewatering loop to eliminate product moisture penalties and recycle 100% of fine washery water back to the preparation circuit.
Metzix engineered a customized fine slurry recovery train consisting of high-frequency linear screens for coarse particulate desliming, rotary vacuum disc filters for cake moisture optimization, and an automated flocculation clarification thickener.
The newly commissioned circuit reduced clean coal moisture down to 13.8%, ensuring compliance with rail transport requirements and thermal combustion criteria.
The Engineering Challenge
High clay slimes content creating ultra-fine suspension and slow settling rates in the washery circuit.
The Metzix Solution
Multi-stage clarification combining high-capacity linear screening with high-torque center drive thickeners and automatic flocculation dosing.
Key Results & Performance Metrics:
- Clean coal product moisture reduced to 13.8% consistently
- Process water recycling rate elevated to 95%
- Increased clean coal yield by 3.4% through fine slimes recovery
- Robust performance across 24/7 continuous washery shifts
Products & Equipment Supplied
Linear Slurry Screens ↗
High-frequency linear motion screen with polyurethane modular panels.
Industrial Vacuum Filters ↗
Multi-disc rotary vacuum dewatering units with snap blow cake discharge.
High-Rate Thickeners ↗
24-meter bridge-mounted clarifier thickener with auto-torque sensor.
National Coal & Energy Corp
Delivered in Jharkhand, India. Fully commissioned according to ISO 9001 quality guidelines.
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Visual documentation showing site assembly, delivered equipment components, and operational machinery.
