Coal Washery with Hydro Cyclones

Raw lump coal (–200 mm) is crushed to –12 mm using a Granulator and stored in a Sized Coal Bunker. A reciprocating feeder transfers this material to the 1st Pyramid Tank, where it mixes with water to form slurry.
Coal Washery with Hydro Cyclones

Model

Multitech Hydro Cyclone-Based Coking Coal Washery
  • Feed Size: Lump coal up to (-) 200 mm
  • Crushed Size: (-) 12 mm via Granulator
  • Core Units:
  • 3-Stage Hydro Cyclone Separation System
  • 3 Pyramid Settling Tanks
  • Slurry Pumps (Primary, Secondary, and Tertiary)
  • Reciprocating Feeder with Bunker
  • Stainless Steel Sieve Bends for slurry dewatering
  • Slurry Collection and Recycling Circuit
  • Settling Pond + Water Recovery Loop

Use

This plant is designed specifically for non-media coking coal washing, using only water as the separating agent. It is ideal for coal beneficiation without heavy media, particularly where cost, pollution control, and manpower optimization are key concerns.

Description

This slurry is pumped into the Primary Hydro Cyclone, which separates coarse refuse (underflow) from clean coal (overflow). The refuse is recycled through a Secondary Hydro Cyclone, and further to a Tertiary Cyclone, producing Middlings and Rejects.

The overflow from the cyclones — containing clean coal — is passed through Stainless Steel Sieve Bends, which filter coal from water. Filtered water flows back to Pyramid Tanks and is recycled into the washery process, while excess slurry is sent to the Settling Pond. Clear water is then pumped back into the operating circuit.

Key Advantages

Zero-media washing – only water used, no magnetite or chemicals
Multi-stage cyclone design ensures superior coal classification
Minimal manpower required for operation
Extremely low maintenance with non-mechanical separation
Stainless steel sieve bends for efficient dewatering
Closed-loop water recycling reduces consumption and pollution
Cost-effective and eco-friendly solution for coking coal beneficiation

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