Cutting consumable costs is important for all mining operations, but not at the expense of quality. Grinding media represents low hanging fruit for most miners. Most often, the grinding media in question are grinding balls. In some mid-cap mines, grinding media makes up ~10% of total mining operational expenses (OPEX)
The grinding media is actually alumina particles held in place by an SiO2 glass phase. Sizes from 400 microns to over 1 inch in beads, balls, satellites (ball with bands) and cylinders. Low to medium cost, small sizes are more costly. Fused Zirconium oxide Grinding Media (sp.gr. 3.8) Smooth surface leads to low mill wear and longevity.
In addition to ceramic media, we also offer a selection of metallic grinding media. Balls may be made of carbon steel, glass, chrome steel, or stainless steel and range from 0.8–80 mm. Our grinding media is subjected to a variety of production and inspection processes before being sent to the customer, such as:
8.3.2.2 Ball mills. The ball mill is a tumbling mill that uses steel balls as the grinding media. The length of the cylindrical shell is usually 1–1.5 times the shell diameter ( Figure 8.11). The feed can be dry, with less than 3% moisture to minimize ball coating, or slurry containing 20–40% water by weight.
determine what media size(s) addition will maximize any given plant ball mill's grinding efficiency (Fig. 1). The functional performance parameters "mill grinding rate through the size of interest," and "cumulative mill grinding rates" from both plant and small-scale tests are applied to this task. A plant media sizing methodology, and
The grinding media balls in the ball mill are used in cement plant to help grind blocky or granular grindable materials produced in the cement manufacturing process, so as to achieve the effect of grinding. Vertical roller millVRM and clinker grinding mill and other cement grinding mill are also very common in cement plant.
YSZ Grinding Media. YSZ (Yttria Stabilized Zirconia) grinding media feature high density, toughness and super hardness, enabling to achieve superior grinding efficiencies compared with other conventional grinding media such as Alumina and Agate. The high wear-resistant YSZ grinding media effectively eliminate product contamination and lengthen service life of the grinder.
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