A recent study by Ruite Pump highlights the critical role of slurry pumps in coal washing processes, detailing the essential pump types and their service lifespans in coal washing plants.
Pump Types for Efficient Coal Washing
Coal washing plants employ diverse slurry pumps tailored to specific processes, particularly in heavy medium separation—a technique using water-magnetite mixtures to separate coal by density. Key pumps include:
- Main Heavy Medium Cyclone Feed Pump: Handles coal-medium mixtures (SG 1.6, 50mm particles) with 3,000 m³/h flow and 35m head for cyclone separation.
- Fine Coal Cyclone Feed Pump: Processes undersized coal mixtures (SG 1.65) at 2,500 m³/h and 25m head.
- Qualified Medium Pump: Transports reusable medium (SG 1.35) at 4,000 m³/h and 20m head.
- Dilute Medium Pump: Recovers separated medium (SG 1.15) with 800 m³/h flow, lasting 1–2 years.
- Magnetic Separation Tailings Pump: Manages low-density gangue slurry (SG 1.05) at 900 m³/h, designed for 3–5 years of use.
- Cleaning Pump: Conveys sump slurry (SG 1.2) at 100 m³/h, lasting 2–3 years.
- Filter Press Feed Pump: Delivers high-density slurry (SG 1.2) at 300 m³/h for dewatering, with a 1-year lifespan.
- Circulating Water Pump: Supplies low-solid water (SG ~1.05) at 3,500 m³/h, lasting 3–5 years.
Lifes span Standards for Optimal Performance
- Heavy-duty pumps (e.g., main medium pumps): Must withstand severe abrasion, rated for 1-year service.
- General2-duty pumps (e.g., clear water pumps): Offer extended lifespans of 2–3 years or 3–5 years, suitable for lighter workloads.
This research underscores the importance of matching pump types to operational demands, guiding plant managers in selecting durable, efficient equipment for sustainable coal washing operations.
For more industry insights, contact Ruite Pump at +8619933139867 or rita@ruitepump.com
Note: SG = specific gravity
Post time: May-22-2025