A rotary collider air mill apparatus that uses accelerated air moving at high velocities as the primary reduction medium is described. The apparatus produces turbulent air currents and shear waves within a polygonal housing whereby solid particles introduced into the housing repeatedly collide with each other and are fractured into smaller particles. An exemplary rotary collider air mill apparatus may include a polygonal housing having a front plate and a back plate and 5 or more side plates, a drive shaft passing through the central portion of the polygonal housing, a sprocket mounted on the drive shaft and having arms extending radially from a central hub, and 3 or more blade sections attached to the arms. The rotary collider air mill apparatus is scalable upward or downward in sizes ranging between 12 inches and 144 inches in diameter with the housing and internal mechanisms sized proportional to one another.

A rotary collider air mill apparatus that uses accelerated air moving at high velocities as the primary reduction medium is described. The apparatus produces turbulent air currents and shear waves within a polygonal housing whereby solid particles introduced into the housing repeatedly collide with each other and are fractured into smaller particles. An exemplary rotary collider air mill apparatus may include a polygonal housing having a front plate and a back plate and 5 or more side plates, a drive shaft passing through the central portion of the polygonal housing, a sprocket mounted on the drive shaft and having arms extending radially from a central hub, and 3 or more blade sections attached to the arms. The rotary collider air mill apparatus is scalable upward or downward in sizes ranging between 12 inches and 144 inches in diameter with the housing and internal mechanisms sized proportional to one another.

An erecting angle regulating part 50 is provided to regulate an erecting direction upper limit angle θl of a crushing hammer 13 at a predetermined angle (e.g., approximately 50°) during driving of a rotary drive shaft 17.

An erecting angle regulating part 50 is provided to regulate an erecting direction upper limit angle θl of a crushing hammer 13 at a predetermined angle (e.g., approximately 50°) during driving of a rotary drive shaft 17.

Process for grinding heterogeneous matrices comprising fragile materials and plastic materials, comprising the steps of: (i) introducing in a mill or similar device a heterogeneous matrix comprising plastic materials and fragile materials of variable dimension; (ii) applying, by suitable moving actuator means, kinetic energy to said heterogeneous matrix, by projecting the materials of the matrix at high speed against suitable fixed stop means provided on said mill; (ill) proceeding to grinding under the effect of impacts occurring between the material projected by the actuator means and the material accumulated on said stop means; (iv) discharging the portion of processed material reduced under a prefixed maximum diameter, characterized in that said stop means are configured so that they can hold removably the material projected against the same in an outer region with respect to the volume interested by the movement of said actuator means.

Process for grinding heterogeneous matrices comprising fragile materials and plastic materials, comprising the steps of: (i) introducing in a mill or similar device a heterogeneous matrix comprising plastic materials and fragile materials of variable dimension; (ii) applying, by suitable moving actuator means, kinetic energy to said heterogeneous matrix, by projecting the materials of the matrix at high speed against suitable fixed stop means provided on said mill; (ill) proceeding to grinding under the effect of impacts occurring between the material projected by the actuator means and the material accumulated on said stop means; (iv) discharging the portion of processed material reduced under a prefixed maximum diameter, characterized in that said stop means are configured so that they can hold removably the material projected against the same in an outer region with respect to the volume interested by the movement of said actuator means.

The various embodiments disclosed and pictured illustrate a multi-connector hammer for comminuting various materials. The illustrative embodiments pictured and described herein are primarily for use with a rotatable hammermill assembly. The multi-connector hammer includes a connection portion having a rod hole therein, a contact portion for delivery of energy to the material to be comminuted, and a multi-connector neck portion affixing the connection portion to the contact portion. In other embodiments, a shoulder is positioned around the periphery of the rod hole for added strength. In still other embodiments, a neck reinforcement is positioned along a portion of the neck for increased strength. A weld or plurality of welds may be affixed to various surfaces of the contact portion to aide in comminuting and/or longevity of the multi-connector hammer.

The various embodiments disclosed and pictured illustrate a multi-connector hammer for comminuting various materials. The illustrative embodiments pictured and described herein are primarily for use with a rotatable hammermill assembly. The multi-connector hammer includes a connection portion having a rod hole therein, a contact portion for delivery of energy to the material to be comminuted, and a multi-connector neck portion affixing the connection portion to the contact portion. In other embodiments, a shoulder is positioned around the periphery of the rod hole for added strength. In still other embodiments, a neck reinforcement is positioned along a portion of the neck for increased strength. A weld or plurality of welds may be affixed to various surfaces of the contact portion to aide in comminuting and/or longevity of the multi-connector hammer.

A bale shredder may comprise a bale hopper defining an interior bale chamber for receiving a bale to be shredded, a bale shredding assembly to shred a bale in the chamber including a shredding rotor having a plurality of flails to contact a bale in the bale chamber, and a passage for receiving material shredded by the shredding rotor. In embodiments, a conveying assembly may facilitate material flow through the passage with a moving conveying surface. A collecting auger assembly may collect material ejected by the shredding rotor through the passage and may include an auger with an auger shaft rotatable about a rotation axis. In embodiments, a discharge assembly with a discharge rotor configured to receive the shredded material from the collecting auger assembly and expel the material through a discharge opening, and the discharge rotor may rotate on the auger shaft of the collecting auger assembly.

A bale shredder may comprise a bale hopper defining an interior bale chamber for receiving a bale to be shredded, a bale shredding assembly to shred a bale in the chamber including a shredding rotor having a plurality of flails to contact a bale in the bale chamber, and a passage for receiving material shredded by the shredding rotor. In embodiments, a conveying assembly may facilitate material flow through the passage with a moving conveying surface. A collecting auger assembly may collect material ejected by the shredding rotor through the passage and may include an auger with an auger shaft rotatable about a rotation axis. In embodiments, a discharge assembly with a discharge rotor configured to receive the shredded material from the collecting auger assembly and expel the material through a discharge opening, and the discharge rotor may rotate on the auger shaft of the collecting auger assembly.