How to Calculate and Solve for Shaft Power | Ball Mill Sizing
Last Updated on July 17, 2021
The image above represents shaft power.
To compute for shaft power, two essential parameters are needed and these parameters are Mill Capacity (Q) and Specific Power of Mill (E).
The formula for calculating shaft power:
P = QE
Where:
P = Shaft Power
Q = Mill Capacity
E = Specific Power of Mill
Let’s solve an example;
Find the shaft power when the mill capacity is 20 and the specific power of mill is 24.
This implies that;
Q = Mill Capacity = 20
E = Specific Power of Mill = 24
P = QE
P = (20)(24)
P = 480
Therefore, the shaft power is 480 W.
Calculating for the Mill Capacity when the Shaft Power and the Specific Power of Mill is Given.
Q = P / E
Where;
Q = Mill Capacity
P = Shaft Power
E = Specific Power of Mill
Let’s solve an example;
Find the mill capacity when the shaft power is 24 and the specific power of mill is 6.
This implies that;
P = Shaft Power = 24
E = Specific Power of Mill = 6
Q = P / E
Q = 24 / 6
Q = 4
Therefore, the mill capacity is 4.
Calculating for the Specific Power of Mill when the Shaft Power and the Mill Capacity is Given.
E = P / Q
Where;
E = Specific Power of Mill
P = Shaft Power
Q = Mill Capacity
Let’s solve an example;
Find the specific power of mill when the shaft power is 36 and the mill capacity is 12.
This implies that;
P = Shaft Power = 36
Q = Mill Capacity = 12
E = P / Q
E = 36 / 12
E = 3
Therefore, the specific power of mill is 3 W.
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the shaft power.
To get the answer and workings of the shaft power using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.
Now, Click on Ball Mill Sizing under Materials and Metallurgical
Now, Click on Shaft Power under Ball Mill Sizing
The screenshot below displays the page or activity to enter your values, to get the answer for the shaft power according to the respective parameters which is the Mill Capacity (Q) and Specific Power of Mill (E).
Now, enter the value appropriately and accordingly for the parameter as required by the Mill Capacity (Q) is 20 and Specific Power of Mill (E) is 24.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the shaft power and presents the formula, workings and steps too.