Product Description:
Specially designed for the entire process of rough and fine grinding in the mining industry, focusing on the grinding needs of hard minerals such as iron ore, copper ore, and gold ore, solving the pain points of traditional grinding balls with poor impact resistance, easy cracking, and low grinding efficiency leading to insufficient production. After being adopted by a certain iron ore enterprise, the daily output of a single ball mill increased from 800 tons to 1050 tons, and the crushing rate decreased from 15% to 2%, significantly reducing the frequency of downtime for slag cleaning and ball replenishment, and helping mining enterprises break through production capacity bottlenecks.
Features:
Made of 95% high-purity alumina substrate, added with 3% chromium oxide composite reinforcing agent, and subjected to high-temperature sintering and isothermal quenching treatment at 1600 ℃, the high alumina content lays a stable hard foundation, with a compressive strength of 250MPa and no cracks in the 2.0m drop ball impact (far exceeding the industry standard of 1.5m). The roundness error of the sphere is ≤± 0.2mm, covering a specification of 20-80mm (coarse grinding 50-80mm, fine grinding 20-40mm), with a wear rate as low as 0.06%, reducing kinetic energy loss during the grinding process. Combined with a high filling rate design (65% -70%), the grinding amount per unit time is increased by 30% compared to ordinary grinding balls.
Technical Parameters:
| Water Absorption |
≤0.01% |
| Hardness |
9 Mohs |
| Material |
Alumina Ceramic |
| Impact Resistance |
Good |
| Packing |
25kg/drum Or Customized |
| Alumina Content |
92%,95% |
| Corrosion Resistance |
High |
| Size |
13mm-90mm |
| Shape |
Spherical |
| Color |
White |
Applications:
Suitable for all types of ore grinding scenarios in the mining industry, the 50-80mm specification is suitable for coarse grinding processes in iron ore grinding, with high impact resistance and easy handling of large iron ore crushing. With a compressive strength of 250MPa, it is suitable for continuous operation of high-speed ball mills; The 20-40mm specification is used for fine grinding process, with 0.06% low wear to ensure uniform particle size of iron concentrate (-200 mesh accounting for ≥ 85%). In the processing of non-ferrous metal ores such as copper and gold, the 30-50mm specification meets the transition requirements between medium and fine grinding, with a 95% high alumina content to avoid metal ion contamination of the slurry and improve the recovery rate of mineral processing. In addition, it can also be used for grinding non-metallic minerals such as quartz sand and feldspar, with a full range of 20-80mm covering different grinding stages without the need to replace consumables, suitable for the large-scale production needs of mining enterprises.
Advantages:
Firstly, a leap in production capacity - high impact resistance suitable for mining high-speed ball mills (25-30r/min), no risk of cracking and shutdown, combined with low wear characteristics, the daily output of a single equipment is increased by more than 25%. Calculated based on an annual output of 1 million tons of ore, the annual production increase value exceeds 10 million yuan; Secondly, significant cost reduction - the ball replacement cycle has been extended from 15 days to 60 days, reducing the annual ball replacement cost by 75%. At the same time, the labor cost for cleaning broken balls and equipment lining wear have been reduced (the lining life has been doubled); Thirdly, it is fully adaptable - covering the entire process of mining coarse grinding (crushing large ores) and fine grinding (preparing qualified slurry) with a full specification of 20-80mm, without the need to change the grinding ball model, simplifying management.
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