A 100 tph cement ball mill is a key piece of equipment in cement plants, used for grinding clinker, gypsum, and other additives to produce Portland cement. Below are the key aspects of such a mill:
1. Basic Specifications
– Capacity: 100 tons per hour (tph)
– Feed Size: Typically ≤25 mm (pre-ground by a pre-crusher or vertical roller mill)
– Output Fineness: ~3000-3500 cm²/g (Blaine) for ordinary Portland cement
– Drive System: Central drive or gearless drive (depending on size and power)
– Liner Type: Wave, step, or classifying liners for efficient grinding
2. Typical Dimensions & Power
| Parameter | Value |
|———–|——-|
| Mill Diameter | ~4.2 m – 4.8 m |
| Mill Length | ~13 m – 15 m |
| Rotational Speed | ~15–18 rpm |
| Motor Power | ~3500–4500 kW |
| Grinding Media Load | ~200–250 tons (steel balls) |
3. Key Components
– Mill Shell: Heavy-duty steel construction
– Grinding Media: High-chrome steel balls (varying sizes for optimal grinding)
– Diaphragms: Intermediate & discharge diaphragms for material flow control
– Bearings & Lubrication System: Hydrodynamic/hydrostatic bearings for smooth operation
– Cooling System: Wa
spray or air cooling to maintain temperature
4. Process Flow
1. Feed Material (Clinker + Gypsum + Additives) enters the mill via a feed chute.
2. Grinding Chamber rotates, lifting and cascading grinding media to crush material.
3. Ground Material exits through a discharge diaphragm and is separated by an air classifier (if in closed circuit).
5. Common Auxiliary Equipment
– Separator (Classifier): High-efficiency dynamic separator for fineness control (~70–80% recirculation).
– Bucket Elevator & Conveyors: Transport ground material to storage silos.
– Dust Collector (Bag Filter/ESP): Controls emissions (~20–30 mg/Nm³ limit).
6. Energy Consumption
– ~30–40 kWh/t of cement produced (varies based on hardness
Leave a Reply