Sand producing method and apparatus

Details Sand producing method and apparatus Sand producing method and apparatus

1985-09-19

1987-05-26

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With classifying or separating of material

241 29, 241 36, 241 76, 241152A, 241275, B02C 2500

Patent

active

046678875

ABSTRACT:
In an apparatus and method for producing sand from stone, the stone is first crushed in a centrifugal crusher and then filtered through a screen. The stone retained on the screen is further crushed by a vibration mill. The stone passing through the screen and the stone crushed by the vibration mill are combined and then are filtered through a separater to separate out the minute particules. Measurements of various flow rates and particle sizes are made in order to control the rotational speed of the vibration mill and the rate at which stone is supplied to the screen.

REFERENCES:
patent: 2012694 (1935-08-01), Runyan
patent: 3568938 (1971-03-01), Barrot et al.

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