Feed distributor for gyratory crusher
AssigneeAllis-Chalmers Corporation
InventorRobert H. Kemnitz
Life of this patent
Estimating the term…
Abstract
A feeder distributor is mounted above an annular crushing chamber of a gyratory crusher and operates to distribute feed uniformly around the entire circumference rather than at one revolving point. A rotating cylinder has a rotating bottom plate of larger diameter connected to it by ribs leaving a circumferential opening between the cylinder and the plate. The circumferential opening is sized to prevent the flow of material when the cylinder and plate are not rotating. When rotating, the material is thrown off of the plate around the entire circumference of the plate by centrifugal force. This provides good continuous distribution of material around the entire crusher chamber regardless of the feed rate into the cylinder.
Claims7
In a crusher having a frame which supports a crusher mantle head for gyratory movement and a stationary concave surrounding the crusher mantle, the mantle and concave defining an annular crushing chamber therebetween, a feed distributor comprising:
- support means carried by the frame;
- a circular material distributor plate carried by said support means for rotation independently of the movement of the crusher head;
- a frusto conical material bin having an opening therethrough supported by said distributor plate in coaxial relationship above the surface thereof and positioned to define a circumferential opening between the bottom of the bin and the top surface of the distributor plate;
- a material hopper means supported above said frusto conical material bin, said hopper having a discharge spout coaxial with said bin for supplying material to said bin;
- and,
- power drive means operably connected to effect the simultaneous rotation of said material bin and said distributor plate;
- whereby the material fed to the distributor plate from said bin will flow radially outwardly from the circumferential opening and be distributed by centrifugal force evenly around the entire crushing chamber.
In a crusher having a frame which supports a crusher mantle for gyratory movement within a stationary concave, said mantle and concave defining a crushing chamber;
- a support means carried by the frame;
- a circular feed distributor plate carried by said support means for rotation about a vertical axis which coincides with the axis of the crushing chamber;
- a hollow cylindrical material feed bin supported by said distributor plate in coaxial relationship therewith and positioned above the surface of said distributor plate to define a circumferential opening between the surface of the distributor plate and the bottom edge of said hollow cylindrical bin;
- regulating means associated with said hollow cylindrical bin for adjusting the size of the circumferential opening between said distributor plate and the bottom edge of said hollow cylindrical feed bin to accommodate the size of material feed being processed;
- and
- power drive means connected to rotate said distributor plate, said cylindrical feed bin and said regulating means in unison.
Dependencies are inferred from the claim text.