This module calculates the required shaft power, impeller diameter and other relevant tank/ancillary parts and dimensions for top entering impeller, specifically for those that can be found in the mining industry.

This module calculates the appropriate maximum ball size, balanced ball charge and two and three-ball recharge or make-up composition for a ballmill circuit based on the method formulated by Ettore Azzaroni. 

This module calculates : 

• the ballmill/rodmill power requirement to produce a desired grind based on the well known Bond formula and 

• power needed to run a mill given  the mill parameters (i.e. mill dimensions, ballloading, etc). 

This module takes inspiration from the works of Aidan Ryan for Rapu-rapu carbon-in-leach model in Excel file form. This model optimizes the metal inventory, particularly gold, associated with the adsorption process using activated carbon. The optimization is done by varying the numerous variables like number of leach/adsorption tanks, carbon concentration, residence time and target solution grade.

This module calculates the parameters that fits a model for a cyanidation kinetics data set. It is very useful in interpreting cyanidation  time-recovery tests.

This module calculates the heat transfer Q in kilowatt needed for a Zadra gold elution process.

This module calculates the k and n parameters commonly known as the Fleming and Nicol constants/numbers. It is very useful in interpreting solution tenor-carbon loading-time data describing the kinetics of the absorption of gold onto activated carbon from pulps containing the aurocyanide ion. 

This module calculates the parameters that fits a model for a flotation kinetics data set.

This module calculates grinding efficiency and efficiency factor using two methods. One developed Introduction by CA Rowland and the other by Global Mining Guidelines Group (GMG). This can be used to compare different grinding circuits or evaluate the effect of grinding variables like feed size or liner design.

This calculator may come in handy in grinding media inventory or for example designing the size of a ball kibble or trying to determine how much balls will fit into a given space or determining the weight of the mill charge itself.

This module calculates the free height or percent grinding media loading, volume of charge and charge weight given the dimensions of the mill.

This is useful when for example determining the amount of grinding media needed to bring a grinding mill to a specific charge loading or determining the percent charge after a “crash stop” of a mill.

This module evaluates the performance of a hydrocycloning process using commonly used industry performance indicators, e.g. Sharpness Index (SI), d50 size, water bypass fraction, circulating load, selectivity and classification numbers.

This module is designed to provide an initial estimate of the size and number of hydrocyclones needed for a particular application. It is however generally recommended that a hydrocyclone manufacturer/supplier be consulted for the final sizing and selection.

This module calculates the scaling potential of water using the Langelier and Ryznar indexes. This is useful in monitoring quality of water within the plant particularly on heat exchangers and loaded carbon elutions.

This module calculates the volume in milliliter of liquid stock chemical or weight in gram of solid stock chemical to produce a desired volume of chemical solution with the desired concentration in molarity (M). It can also calculate what volume of stock solution of known concentration (M) should be taken to produce a solution of desired volume and concentration.

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This module calculates P80 or size at 80% passing given a screen analysis or particle size distribution. It can also be used to determine other sizes i.e. P25, P50, P75 and the likes. Calculation is done either by using Rosin-Rammler equation or by logarithmic interpolation.

This calculator can serve as a tool to confirm your calculation on reagent dosing. It can answer questions for the user like :

• what should be the reagent addition rate knowing the plant milling rate or

• determine what should be the reagent volume that must be added to a laboratory ore sample of known weight and desired reagent dosage or 

• how much ore and water must be prepared to attain a desired percent solids knowing the volume of the laboratory tank or cell to be used. 

It comes in three sub-modules namely Plant Reagent Dosing, Laboratory Reagent Dosing and Laboratory-Solids/Water Required.

This module calculates the required input power to the mill motor or gross power in kilowatt. Net power or mill shell power or power at pinion is gross power multiplied by the drive train efficiency factor which is taken as 0.931. This efficiency factor came from the product of pinion efficiency (0.985), gear box efficiency (0.985) and induction motor efficiency (0.96).

 A total of ten (10) different power models were used namely: 

1. Austin Model

2. Barratt-Loveday Model

3. Bond Model

4. Harris Model

5. Hogg-Fuerstenau Model

6. Marcy Model

7. Morgardshammar Model

8. Morrell C Model

9. Morrell E Model

10. Starkey Model

Morrell and Starkey models calculate the gross power while the rest of the models calculate power at the pinion shaft or mill shell power. Please take note of this difference.

The application of the efficiency factor puts the power calculated by the different models at the same level, that is gross power or motor input power.

This module calculates relevant slurry properties given the solids specific gravity  and either percent solids or slurry density. These properties are percent solids by volume, water : solids ratio by weight, slurry flow in cubic meter per hour or US gallons per minute per ton of solids per hour.

This module calculates the volume of liquid contained in a tank. It is useful for example in determining the remaining reagent solution in a holding tank or loaded carbon capacity of an elution vessel or remaining fuel in a horizontal tank with an elliptical cross section.

This module is based on the vibrating screen sizing method published by Allis-Chalmers. It calculates the required screen surface area based on the feed rate to the screen.

This module is based on the vibrating screen sizing method developed by the Vibrating Screen Manufacturers' Association (VSMA). It calculates the required screen surface area based on the screen underflow throughput rate.