Mill Liner Wear > Monitor wear rates at frequent intervals mechanical gauge > Electronic measuring devices are also available Scanalyse > Liners could last 18 months so this is a slow optimisation process > Monitor cracks, damage bolts, pegging, broken balls,

Typical ball diameters range from 10 to 150 mm, thus weighting 1 g to 4 kg. Moreover, ball mills have on average a 4 m diameter and a 510 MW power consumption. As a result of the energetic motion of the balls, the environment inside of the mill is highly aggressive in terms of wear.

SAG Ball consumption is average at 400 g/t while Ball Mill grinding media (3 Increase potential for liner damage/higher wear rate (here is the critical risk) More details Get Price. The results obtained allowed to elaborate a ball wear rate ranking. The Selection and Design of Mill Liners

Figure 5. Highlow wave ball mill liner Materials The selection of the material of construction is a function of the application, abrasivity of ore, size of mill, corrosion environment, size of balls, mill speed, etc. liner design and material of construction are integral and cannot be chosen in isolation.

Complete mill Weight Cost Life cost/annum Liner kg R day R V grid 145 368 134 192500 Lifterbar 119 302 67 315900 Total 508400 100mmflatgrid 192 488 85 402300 125mm'flatgrid 240 610 665 64300 Lifterbar 132 335 192 122300 Total 186600 Analysis oftheResults After6monthsofmonitoring, itcanbepredictedthat lifterbarsundertheseconditions willlast192dayson

average wear rates in ball mill liners fordsburginncozaTECHNICAL NOTES 8 GRINDING R P King Mineral Technologies Liners protect the outer shell of the. ATTRITORS AND BALL MILLS HOW THEY WORK , ATTRITORS AND BALL MILLS HOW THEY WORK , rate The entire contents , Ball mills are one of the more common mills and use a closed cylindrical container

the wear of lifters in a laboratory ball mill. on the wear of liners. They used a mill liner wear in dry ball milling measurement is the average of 9 to More; GRINDING BODY CHARGE AND WEAR Home In quick calculations we can take for the whole mill an average of of the mill length.

Complete mill Weight Cost Life cost/annum Liner kg R day R V grid 145 368 134 192500 Lifterbar 119 302 67 315900 Total 508400 100mmflatgrid 192 488 85 402300 125mm'flatgrid 240 610 665 64300 Lifterbar 132 335 192 122300 Total 186600 Analysis oftheResults After6monthsofmonitoring, itcanbepredictedthat lifterbarsundertheseconditions willlast192dayson

Optimization of mill performance by using online ball and pulp measurements. In the platinum industry, by increasing the solid content in the slurry, the product becomes finer. At a higher percentage solid than 73 to 74%, the product becomes coarser again. At this level, a drop in grinding efficiency occurs.

Uniform ball distribution (Mixed size balls) is a must during starting of ball mill after liner replacement. Wt% solids in ball mill also play a major role. Operating variables its effect on ball wear Case study In 40 tph ball consumption was high, metallurgy of concentrates was less, difficult to

Grinding Media Lining Media Liner Wear Rate Modelling Prediction also leads to the fairly generally accepted conclusion that the rate of wear is proportional to the power absorbed in a mill. Thus it appears that the ball wear is, very roughly, proportional to both rate of production of surface and to power input to the mill.

The way in which the mill liners tumble the ball charge determines how the balls will grind the ore and the liners themselves wear. Tumbling characteristics of the grinding media is determined by height, slope and radius of curvature of the liner surface. Hence the design of liners becomes an important factor in determining liner wear rate.

As the ball wear rate depends directly on the surface of the media charge, a small variation in power will lead to an important increase of wear rate The risk of underloading or overloading the mill is an additional factor A direct measurement of the ball level in the mill, more accurate than power readings, as well as a control of it, is

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ore dressing calculate ball mill liner wear. In the mineral processing industry, ball mills are used to reduce ore from one size distribution to another , charge and mill liners , a function of the energy rates calculated using the ball , The liner wear rate can be determined from real . More; Average Wear Rates In Ball Mill Liners

Wear in rock crushers causes great costs in the mining and aggregates industry Change of the geometry of the crusher liners is a major reason for these costs Get Price ; ball mill liners wear calculations finding out the wear rate in ball mills calculations cement mill grinding media wear rate calculation how to estimate , average wear rates in

Highlow double wave ball mill liners These are a refinement of the wave liner, Figure 5. This was applied to Cadia Hill Gold Mine through evaluation of their existing wear profile and wear rate, and provided a more consistent wear profile through the liners working life.

Complete mill Weight Cost Life cost/annum Liner kg R day R V grid 145 368 134 192500 Lifterbar 119 302 67 315900 Total 508400 100mmflatgrid 192 488 85 402300 125mm'flatgrid 240 610 665 64300 Lifterbar 132 335 192 122300 Total 186600 Analysis oftheResults After6monthsofmonitoring, itcanbepredictedthat lifterbarsundertheseconditions willlast192dayson