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US 5,513,806 AGranted
Autogenous comminution in a planetary mill
AssigneeECC International Limited
InventorHugh R. Falcon-Steward
Life of this patent
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AssigneeECC International Limited
InventorHugh R. Falcon-Steward
Estimating the term…
The present invention relates to apparatus for comminuting a material. The apparatus comprises a support (4) which is rotatable about a primary axis, and a grinding vessel (17), defining a grinding chamber, which is mounted on the support (4) for rotation about a secondary axis which is substantially parallel to the primary axis. The grinding vessel (17) is provided with an inlet (34) for a feed suspension of particulate solid material and an outlet (36) for a suspension for a fine product. In the first embodiment the grinding vessel (17) communicates with the outlet (36 ) through a screen (35 ). In the second embodiment, the inlet (34) comprises means for regulating the flow rate of the feed suspension. The invention also relates to a process for comminuting a material in a planetary mill, in which process the material is either ground autogenously or is ground in the presence of a grinding medium consising of particles not larger than 1mm.
A continuous process for wet grinding a feed material in a planetary mill, said mill comprising a support which rotates about a primary axis and which carries a grinding chamber which rotates about a secondary axis, relatively to the support, in the direction of rotation of the support, said material being introduced into the mill in suspension in a liquid and being comminuted in the mill in the presence of a grinding medium consisting of particles not smaller than 0.5 mm and not larger than 1 mm.
A continuous process for wet grinding a particulate solid feed material having a maximum particle size of 12 mm in a planetary mill, said mill comprising a support which rotates about a primary axis and which carries a grinding chamber which rotates about a secondary axis, relatively to the support, in the direction of rotation of the support, said material being introduced into the mill in suspension in a liquid and being comminuted autogenously in the mill.
Dependencies are inferred from the claim text.