Alumina grinding media
Al₂O₃(%)≥92
Rate of Water Absorption(%) ≤0.01
Bulk density(g/cm³) ≥3.63
Product Description
Extremely cost effective;
Improves grinding efficiency and energy costs;
Longer service time due to low wear rate;
Contamination-free to the color and composition of the ground material;
Technical support provided to optimize milling conditions.
APPLICATION
1.In the situation of wet grinding
Usually,the total chaarges of the alumina balls should be not less than 55% of the total ball mill capcacity
Ball capacity(MT) | Crinding raw materials | Feeding size | proportion |
>15MT | Greem body | >1.5cm | Φ30:Φ:40:Φ50:Φ60 2:3:3:2or2:4:3:1 |
2.5MT,5MT | Glaze | Φ30:Φ:40:Φ50:Φ60 3:4:2:1 | |
Glaze | Φ30:Φ:40:Φ50 3:5:2 |
2.in the situation of dry grinding
Dry grinding is widlely used in mining,ceramic industries,etc.VANNA technicans make lots of tests,eventually,we developed alumina balls performd well on dry grinding situation with much lower wear-loss,it help solve the problem of materials contamination.
The proportion of the alumina ball for dry grinding depands on the hardness and fineness of grinding raw material,generally speaking,CIP formed grinding ball used for dry grinding.
Specifications
Items | VNA | VNH | VNG |
Alumina | Alumina | Alumina | |
Usage | Wet grinding | Wet grinding | Dry grinding |
Al2O3(%) | 92 | 92 | 92 |
Bulk density(g/cm3) | >3.65 | >3.67 | >3.63 |
Prosity | 0.00 | 0.00 | 0.00 |
Wear rate | |||
Wet method(%) | ≤0.005 | ≤0.003 | ≤0.006 |
Dry method(%) | 0.005 | ||
Hardness(M0hs) | 9 | 9 | 9 |
Color | White | White | White |
Srandard size(mm) | 3~90 | 3~60 | 10~90 |
