Apparatus for comminuting pulverizable material
AssigneeClifford E. Rawlings
InventorClement L. Deister
Life of this patent
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Abstract
An impact pulverizer mounts a rotor concentrically within an octagonal shaped reduction chamber. The rotor has a substantially solid core and generally radially extending impact blades, each of which slopes in the axial direction of the rotor. Upon rotation of the rotor, the blades strike pulverizable material and propel the same radially of the chamber and against the interior walls thereof. The slope of the blades moves the pieces longitudinally of the chamber from the intake toward the egress end in a generally spiral rotational motion as the pieces ricochet off the interior walls and back against the rotor blades, striking each other as they so progress. The striking and ricocheting cause the pieces to break up and be reduced in size as they travel towards an outfeed opening.
Claims12
An impact pulverizer for comminuting materials comprising:
- a housing;
- a drive motor mounted in operative relation to said housing;
- a reduction chamber disposed within said housing, said chamber having a polygonal-shaped interior cross-section;
- infeed means disposed at one longitudinal end of said reduction chamber and adapted to feed pulverizable material to the interior thereof;
- an impact rotor operatively connected to said drive motor and generally concentrically mounted within said reduction chamber, said rotor comprising a plurality of generally radially-extending impact blades, the radial angle of said blades increasing along the axis of the rotor to provide each of said blades with a slope in the axial direction of said rotor, said blades being adapted, upon rotation of said rotor, to strike pulverizable material and propel pieces thereof radially of said reduction chamber and against the interior walls thereof, said increasing radial angle of said blades moving said pieces longitudinally of said chamber from said one longitudinal end toward the other longitudinal end thereof in a generally spiral rotational motion as said pieces of said material ricochet off said interior walls and back against said rotor blades;
- and
- egress means disposed at said other longitudinal end and adapted to discharge said pieces of material from said pulverizer after they have been reduced to a predetermined size.
Dependencies are inferred from the claim text.