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A comminution mill is described that includes a vertically oriented cylindrical housing with an intake chute in a top wall and an outlet chute in a bottom wall thereof. A rotatable shaft with a plurality of radially extending cables is disposed coaxially within the cylindrical housing. A plurality o

A comminution mill is described that includes a vertically oriented cylindrical housing with an intake chute in a top wall and an outlet chute in a bottom wall thereof. A rotatable shaft with a plurality of radially extending cables is disposed coaxially within the cylindrical housing. A plurality of studs extends inwardly from the wall of the housing to slow and collect materials flowing through the comminution mill. The studs can be withdrawn to discharge materials collected thereon. Slits are provided in the walls of the housing to enable the exit of particulate materials from the housing. A hood is provided overlying the slits on the exterior of the comminution mill for collecting the particulate material. Operation of the comminution mill provides a self-generated airflow and can be configured to separate, grind, and dry materials disposed therein.

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1. A comminution mill comprising: a cylindrical housing having a rotatable shaft disposed coaxially therein;a plurality of cables removeably coupled to the shaft along the length thereof in one or more spaced apart, radially extending planes, each of the cables extending radially outward from the sh

1. A comminution mill comprising: a cylindrical housing having a rotatable shaft disposed coaxially therein;a plurality of cables removeably coupled to the shaft along the length thereof in one or more spaced apart, radially extending planes, each of the cables extending radially outward from the shaft toward but not contacting a sidewall of the housing, the cables being moved through the radial planes by rotation of the shaft and contacting materials deposited in the housing for comminution, and the movement of the cables generating an airflow through the housing; anda plurality of slits disposed in the sidewall of the housing through which particulate materials exit the housing. 2. The comminution mill of claim 1, further comprising: a collection hood coupled to an exterior of the housing and enclosing one or more of the plurality of slits. 3. The comminution mill of claim 2, wherein the collection hood encloses slits that lie within one of the radial planes. 4. The comminution mill of claim 2, wherein the collection hood encloses slits that are generally vertically aligned and lie within more than one of the radial planes. 5. The comminution mill of claim 2, wherein the collection hood extends about the circumference of the housing. 6. The comminution mill of claim 1, further comprising: a plurality of obstructing members extending radially inward from a sidewall of the housing and positioned vertically offset from the radial planes. 7. The comminution mill of claim 6, wherein one or more of the obstructing members are moveable inwardly and outwardly through the sidewall. 8. The comminution mill of claim 7, further comprising: an actuating assembly that includes a body that is coupled to a first end of one or more of the obstructing members in the plurality, the actuating assembly being moveable between an operational position in which the one or more obstructing members extend through the sidewall and into an interior of the comminution mill and a withdrawn position in which the one or more obstructing members are at least partially withdrawn from the interior. 9. The comminution mill of claim 8, further comprising: a guide pin along which the body slides to move between the operational and withdrawn positions. 10. The comminution mill of claim 8, further comprising a handle coupled to the body and useable to manually move the actuating assembly between the operational and withdrawn positions. 11. The comminution mill of claim 8, wherein the actuating assembly is one or more of hydraulically, pneumatically, or mechanically actuated. 12. The comminution mill of claim 1, wherein one or more of the plurality of cables includes an abrasive ring disposed on the cable. 13. A vertically oriented comminution mill comprising: a cylindrical housing having a rotatable shaft disposed coaxially therein;a plurality of mounting plates fixedly coupled to the shaft and spaced apart along the length thereof;a plurality of cables coupled to each of the mounting plates and extending radially outward toward but not contacting a sidewall of the housing, the cables being moved through a radial plane by rotation of the shaft and contacting materials deposited in the housing for comminution, and the movement of the cables generating an airflow from the inlet through the housing to an outlet;a plurality of slits disposed in the sidewall of the housing through which particulate materials exit the housing; anda collection hood coupled to an exterior of the housing and configured to receive the particulate materials exiting the housing through one or more of the slits. 14. The comminution mill of claim 13, wherein the slits in the plurality are arranged in groups of slits, and wherein a plurality of collection hoods is coupled to the exterior of the housing, each of the collection hoods being associated with a respective one or more groups of slits. 15. The comminution mill of claim 13, wherein the collection hood includes a discharge tube into which the particulate materials are channeled toward a collection basin, and wherein a fan is associated with the collection hood to move the particulate materials through the discharge tube. 16. The comminution mill of claim 13, wherein one or more of the cables includes an abrasive ring disposed thereon, the abrasive ring free-floating on the cable to enable rotation of the abrasive ring about the cable and movement of the abrasive ring along the length of the cable. 17. A vertically oriented comminution mill comprising: a cylindrical housing having a rotatable shaft disposed coaxially therein;a plurality of mounting plates fixedly coupled to the shaft and spaced apart along the length thereof;a plurality of cables coupled to each of the mounting plates and extending radially outward toward but not contacting a sidewall of the housing, the cables being moved through a radial plane by rotation of the shaft and contacting materials deposited in the housing for comminution, and the movement of the cables generating an airflow from the inlet through the housing to an outlet; anda plurality of obstructing members extending radially inward from the sidewall of the housing and positioned vertically offset from the radial planes, the obstructing members being moveable through the sidewall between an operational position in which the obstructing members extend a first distance into the interior of the housing and a withdrawn position in which the obstructing members extend a second distance into the interior of the housing, the first distance being greater than the second distance. 18. The comminution mill of claim 17, further comprising: an actuating assembly that includes a body that is coupled to first ends of one or more of the obstructing members, the actuating assembly being operable to move the obstructing members between the operational position and the withdrawn position. 19. The comminution mill of claim 17, wherein the actuating assembly is one or more of hydraulically, pneumatically, and mechanically actuated. 20. The comminution mill of claim 17, wherein materials being ground in the comminution mill collect on the obstructing members during comminution, and wherein movement of the obstructing members to the withdrawn position displaces the materials from the obstructing members for further comminution and passage through the housing.