Grinding & Classification Circuits

Grinding & Classification Circuits

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Ball Mill Control (3 replies and 2 comments)

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psvssharsha
1 year ago
psvssharsha 1 year ago

How to control Ball mill grinding & classification circuit without DCS system for effective control on continuous operation

Saeed Alijani
1 year ago
Saeed Alijani 1 year ago

I think, you must continuously check the draw point of ball mill and set this to the set point by changing the feed rate and Keeping the feed pulp 70% percent solid

P
psvssharsha
1 year ago

What do u mean by draw point

Saeed Alijani
1 year ago

Electicial power، set this as set point to 80%-85% nominal power of electromotor.
Also if you set this to over 85%, to prevent overload of ball mill, you should pay attention to the temperature and pressure of the oil on the tranioans and rate of reject.

N
Chandan1987
1 year ago
Chandan1987 1 year ago

How to calculate %of solid of iron ore slurry also wants to know how to calculate re circulation load.

Thanks

Nisi

+91-7894414980

David
1 year ago
David 1 year ago

Hello C

yes, Saeed is correct. Power-draw is your main driving factor. % Solids out of the mill is next. You will play around and identify what the optimum % Solids is for your situation. Personally, I push the kW to 90% of nominal. If your mill does not draw that much; you need to add balls.

How to calculate %of solid of iron ore slurry https://www.911metallurgist.com/blog/percent-solids-to-specific-gravity-conversion-of-slurry

how to calculate re circulation load https://www.911metallurgist.com/grinding/circulating-load-equation/ or https://www.911metallurgist.com/blog/circulating_load_calculation_formula

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