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US 2020/0030812 A1Published application
Gyratory crusher including a variable speed drive and control system
AssigneeMetso Minerals Industries, Inc.
InventorDustin Jacobson
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AssigneeMetso Minerals Industries, Inc.
InventorDustin Jacobson
Estimating the term…
A system and method for controlling the operation of a gyratory rock crusher is shown and described. The gyratory rock crusher includes a variable frequency drive that allows the eccentric speed of the gyratory crusher to be modified based upon sensed parameters of the rock crushing system. The speed of the eccentric rotation can be dynamically adjusted to compensate for the size of the material particles being crushed and the availability of the material. The use of the variable frequency drive increases the operating efficiency of the gyratory crusher by controlling the discharge flow rate of the crushed material from the crusher and thus allows for a reduction in the size of the discharge hopper. The rotational speed of the eccentric is controlled to be below the critical speed for the gyratory crusher.
A gyratory crusher operable to reduce the size of material fed into the crusher from a dump hopper, comprising:
A method of controlling a rock crushing system including a gyratory crusher having a stationary outer shell having an interior crushing surface and a mainshaft having a mantle including an exterior crushing surface that creates a crushing gap with the interior crushing surface of the outer shell, the method comprising the steps of:
Dependencies are inferred from the claim text.