Steel ball loading calculation formula

The amount of ball loading has a certain impact on the grinding efficiency. Less ball milling efficiency is low; too much ball loading will also make grinding efficiency low. Correct and reasonable ball loading must be calculated according to practical requirements. Can be calculated by referring to the following theoretical formula:

P=(π/4)·D2·L·ψ·Υ

Where: P-mill total weight of the ball, tons;

D—the effective inner diameter of the grinding machine, m;

L—milling cylinder length, meters;

Υ—the pseudo-specific gravity of the medium (ton/m3)

For forged steel balls: Υ = 4.5-4.8 tons / m3;

For rolled steel balls: Υ = 6-6.5 tons / m3;

For cast iron ball: Υ = 4.3-4.6 tons / m ³;

ψ—The media fill factor is %.

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