Conveying and separation unit for ballistic projectile arresters

Details Conveying and separation unit for ballistic projectile arresters Conveying and separation unit for ballistic projectile arresters

1990-05-17

1992-02-04

Huppert, Michael S.

Classifying, separating, and assorting solids

Special applications

209147, 209509, 209913, 273394, B03B 900

Patent

active

050857657

ABSTRACT:
A conveying and separation assembly for the impact material of a ballistic projectile arrester for indoor firing grounds, of the type that comprises a heap of granulated material as the impact material, and a pneumatic conveyor for sending the granulated material once it has been separated from the exploded projectiles up to the top of said heap. The assembly comprises a variable-diameter worm screw or helical screw, that rotates about a horizontal axis and is arranged within a half cylinder which is open at its upper portion, the worm screw lying in a direction substantially parallel to that from which the projectiles come; a motor for the worm screw; and gravity separation of the exploded projectiles from the granulated material; the half cylinder being connected, at its rear terminal part, with the worm screw or pneumatic conveyor which are employed for sending the material to the top of the heap.

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patent: 4728109 (1988-03-01), Simonetti
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patent: 4824120 (1989-04-01), Wang

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