RETRACTABLE ENHANCED FLOW DISCHARGE SYSTEM
Modernize Your MPS or MBF Series Mill to Improve Fineness and Capacity
The traditional Flapper Valve Assembly in MPS and MBF pulverizers has long been a source of operational inefficiency and maintenance headaches. Designed to catch and return rejected coal for regrind, the flapper system often contributes to classifier short-circuiting—allowing coal to recirculate endlessly or stick the flapper door open, disrupting airflow and reducing mill efficiency.
SAS Global’s Patent-Pending Retractable Enhanced Flow Discharge eliminates the outdated flapper assembly and its inherent problems—replacing it with a precision-engineered discharge system that improves performance, increases capacity, and simplifies maintenance.
How It Works
The SAS Retractable Enhanced Flow Discharge extends directly into the grinding zone, guiding rejected coal straight to the center of the grinding bowl—right where it’s needed for efficient regrind. This prevents coal from being re-entrained into the classifier airflow, ensuring each particle follows the correct flow path only once.
Field testing has shown: 11-12% improvement in fineness compared to mills with flapper assemblies.
Performance Benefits
- Directs coarse coal back to the grinding zone for faster, more efficient regrind
- Eliminates classifier short-circuiting
- Reduces the number of recirculation cycles through the classifier
- Lowers mill differential pressure
- Reduces mill motor amps
- Increases mill capacity
- Improves fineness for better combustion and lower LOI
Maintenance Advantages
- Retracts easily for fast access to roll wheels
- Simplifies roll wheel oil changes
- Lifts using simple chain falls—no heavy equipment required
- No need to disassemble sections for access
- Replaces unreliable OEM flapper system prone to sticking and failure
SAS Global’s Retractable Enhanced Flow Discharge isn’t just an upgrade—it’s a smarter way to improve mill performance, reduce maintenance, and increase reliability.
