Refractory crushing involves processing materials that are highly resistant to heat and wear, such as firebricks, ceramics, and other high-temperature-resistant aggregates. Specialized equipment is required to handle these tough materials efficiently. Below are key types of refractory crushing aggregate equipment and considerations:
1. Primary Crushing Equipment
– Jaw Crushers: Robust for coarse crushing of refractory materials (e.g., alumina, magnesia bricks).
– Example: Heavy-duty jaw crushers with manganese steel liners.
– Gyratory Crushers: Suitable for large-scale refractory processing with high capacity.
2. Secondary Crushing Equipment
– Cone Crushers: Ideal for medium-hard to hard refractory materials (e.g., silica, zirconia).
– Hydraulic adjustment for precise output sizing.
– Impact Crushers (Horizontal/Vertical Shaft): Effective for brittle refractories (e.g., chamotte, fused cast blocks).
– Uses hammers/blow bars for impact crushing.
3. Tertiary/Fine Crushing Equipment
– Roll Crushers: For fine grinding of refractory aggregates (e.g., grog, dead-burned magnesite).
– Adjustable gap settings for controlled particle size.
– Hammer Mills: Efficient for pulverizing refractory waste into fine powders.
4. Specialized Refractory Processing Equipment
– Ball Mills/Rod Mills: Used in refractory recycling or fine grinding applications.
– VSI Crushers (Vertical Shaft Impactors): Produces cubical-shaped aggregates for refractory mixes.
5. Auxiliary Equipment
– Vibrating Screens: Classify crushed refractory materials by size.
– Magnetic Separators: Remove metallic contaminants from recycled refractories.
– Dust Collection Systems: Essential due to silica/alumina dust hazards.
Key Considerations When Selecting Equipment
– Material Hardness & Abrasiveness → Choose wear-resistant alloys (e.g., tungsten carbide, high-chrome steel).
– Moisture Content → Jaw/cone crushers handle dry materials better; impact crushers may struggle with sticky refractories.
– Output Size Requirements → Adjustable crusher settings for custom gradations.
– Durability & Maintenance → Re
ctory crushing is abrasive; prioritize easy-to-replace wear parts.
Leading Manufacturers