For fine grinding of aluminum powder to 600 mesh (25 microns), a ball mill is the ideal equipment. This setup ensures uniform particle size distribution, critical for applications in pyrotechnics, paints, and aerospace. The ball mill operates via rotating cylinders filled with grinding media (steel or ceramic balls), crushing raw aluminum into ultrafine powder through impact and attrition.
1. Jaw Crusher: Pre-crushes bulk aluminum scraps to <10mm.
2. Bucket Elevator: Transfers crushed material to the ball mill.
3. 600 Mesh Ball Mill: Core equipment with a capacity of 0.5–5 TPH. Key parameters:
– Motor Power: 15–75 kW
– Rotation Speed: 20–25 rpm
– Lining Material: High-alumina ceramic (anti-contamination)
4. Classifier: Separates particles to ensure 600 mesh output.
5. Dust Collector: Captures airborne particles (efficiency >99%).
Q1: How to prevent oxidation during milling?
A: Use inert gas (N₂/Ar) purging in the ball mill chamber.
Q2: What’s the energy consumption per ton?
A: ~50 kWh/ton for 600 mesh output, varying with material hardness.
A pyrotechnics plant in Germany achieved a 3 TPH output of 600 mesh aluminum powder using our line. Key upgrades included a nitrogen-sealed ball mill and pulse-jet dust collector, reducing oxidation to <0.5%.
