Rotary mill utilizing an impact reduction chamber and a vertical

Details Rotary mill utilizing an impact reduction chamber and a vertical Rotary mill utilizing an impact reduction chamber and a vertical

1976-04-13

1977-07-26

Custer, Jr., Granville Y.

Solid material comminution or disintegration

Apparatus

Including means applying fluid to material

241 791, 241 80, 241189R, B02C 2312

Patent

active

040377962

ABSTRACT:
A mill for the reduction and classification of ore utilizing an impact rotor to obtain the reduction of large ore chunks and particles by impaction between shatter bars and hammers mounted on the rotor. The shatter bars are mounted on walls of an impact reduction chamber in a position to be impacted by the ore thrown from the impact rotor hammers. Particles are then carried by vertical air flow into vertically stacked classification chambers which are located directly above the impact reduction chamber. Gravity return of the heavier of these particles causes a secondary impact with the impact rotor producing a continuous interchange of particles and resulting in the autogenous attrition of the particles between the rotor and breaker bars. Another feature of the present invention is the utilization of "fluidizer" to maintain the flow of particles which accumulate at the bottom of the impact reduction chamber.

REFERENCES:
patent: 529874 (1894-11-01), Parker
patent: 1231478 (1917-06-01), Blankmann
patent: 1469877 (1923-10-01), Blum
patent: 1570037 (1926-01-01), Blum et al.
patent: 2931581 (1960-04-01), Lykken et al.
patent: 3929293 (1975-12-01), Hahn et al.
patent: 3936004 (1976-02-01), Graf et al.

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