Ore Hardness Testing SAG Mill Tonnage Estimation Method
Ore Hardness Testing SAG Mill Tonnage Estimation Method. For design purposes you need an estimation or prediction of your SAG Mills tonnage well there are 3 ways to generate good rock ore hardness testing data for SAG and ball mill circuit grindability from half drill core. We can abbreviate the discussion by saying there are three
AG Autogenous and SAG SemiAutogenous Mill Design Calculations
Obviously the SAG mill is consuming more and the ball mill less power than was predicted by the empirical method but the overall total is 99.5 of the predicted total. Examples The Hemlo gold project of TeckCorona 1000 mtpd provides an example of mill sizing using the empirical calculation method alone.
Operation Analysis of a SAG Mill under Different Conditions
A SAG mill grinds through the impact of rock and grinding media while an autogenous mill grinds only through the impact of rock. An autogenous mill is more suitable for smaller particle size requirements while a SAG mill is more suitable for the roughing process and is a relatively mature process. A SAG mill has advantages
SAG Mill Mining engineering EngTips
If you use very soft rock in a SAG mill it will not work as well as if you use harder rocks. Adjustments to the lifting plates around the circumference of the mill provide greater lift and drop and thus greater efficiency. SAG mills are often used as regrinding mills after a fully autogenous milling. Thus giving them a lower efficiency as they
PDF SAG mill circuit optimisation at Ernest Henry Mining
Comparison between maximum mill throughput and SAG mill feed size observed from blast 2014 003 270 standard and 311 standard and simulated for different blast designs 270 2 270 3 311
Optimization of a SAG Mill Energy System: Integrating Rock
The SAG mill will draw from one of the two stockpiles at will to minimize the energy cost. If one of the stocks is emptied the ore from the other stockpile is used. Stockpiles are modeled using a firstin firstout approach. In our appli ion a simplified heuristic is used to feed hard rock during the day and soft rock during the night.
flow diagram for construction rubbish mill Nex
It is a generic tool that can be adapted for a wide variety of purposes and can be used to describe various processes such as a manufacturing process an administrative or service process or a project plan . sag mill working principle. It 39s a common process analysis tool and one of the . . soft rock sag mill craftr. . small mineral grind mill.
Autogenous and SemiAutogenous Mills ScienceDirect
The SAG mill had a 68 ball charge and the power consumption was 8 kWh/t which agreed well with the expected value. 9.6. Problems. 9.1. In an SAG mill the dimensions of the mill were 9.75 m 3.5 m and the specific gravities of the mineral and that of the balls charged were 4.1 and 7.9 respectively.