Re: Jaw Crusher Current Draw Vs Ore Hardness
I am not following in detail, the following may be of interest:
Attempts to relate Bond Work Index values to Unconfined Compressive Strength from data collected from 11 mines indicates no significant correlation between Wi and UCS. Further examination of values for individual mines and individual rock types generally confirm that there is no reliable correlation.
https://www.sagmilling.com/articles/...SWipaper.pdf
Despite this, if you measure the current, I suspect that you will also need to measure the power factor to calculate the real power (potential to complete mechanical work), instead of the apparent power (includes reactive power that does not directly correlate to mechanical work):
https://en.wikipedia.org/wiki/ACpow...lsteady-state
Regards,
Lyle ■
Re: Jaw Crusher Current Draw Vs Ore Hardness
Thanks for the info Lyle.
So is it not correct to assume that harder material will necesarily make the crusher motor draw more current? ■
Re: Jaw Crusher Current Draw Vs Ore Hardness
The models that I am familiar with use BWI, despite that UCS is a consideration, including if to use: single, or double; toggle crusher etc.
Regards,
Lyle ■
Jaw crusher current draw vs ore hardness
Hi All,
When using a jaw crusher, will one expect the 3 phase squirrel cage motor to draw more current if the ore fed is harder (higher Bond index)?
If so, would it be possible to monitor the current of the motor as a proxy of ore hardness, or are there many other variables playing a role in the current draw of the motor?
Thanks in advance for your help! ■