Vertical Shaft Impactor - High-speed Centrifugal Stone-pump, Optimal Material Velocity At 60-70 M/sec

These Vertical Shaft Impactor is nothing but a Centrifugal "STONE-PUMP". Stones are fed into centre of the rotor (like water in the centrifugal pump) & stones are thrown outwards towards the periphery by centrifugal force.
Feed material is fed through a vertical tube in the centre of the horizontal rotor rotating at high speed (60 M/Sec to 70 M/Sec) around a vertical axis.
Feed material due to centrifugal force starts picking up speed and it starts getting distributed over the distribution cone & as the material travels over the rotor-vanes, towards the periphery attains the same speed as speed of rotor's periphery.
At the instant of alighting from the rotor, material attains a velocity which is the resultant of peripheral velocity and radial velocity (due to centrifugal force) and direction of the resultant velocity is almost 45 degrees to radial direction.