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Rotary tumbler and metal reclaimer

  • US 8,245,962 B2
  • Filed: 02/17/2011
  • Issued: 08/21/2012
  • Est. Priority Date: 07/29/2008
  • Status: Active Grant
First Claim
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1. A rotary tumbler and metal reclaimer drum for reclaiming and reclassifying metallics, metallic oxides, sands and related aggregates from lump materials, said drum being substantially horizontally disposed for rotation for reclaiming lump materials, comprising:

  • an inner cylinder having a first end and a second end opposite said first end, said inner cylinder forming a first compartment, a second compartment inwardly of said first compartment, and a third compartment inwardly of said second compartment and opposite said first compartment, said first compartment including an intake receiving lump material, said first compartment breaking up and separates the lump material into smaller pieces, said second compartment providing a crushing chamber for further breaking up the lump material passing therethrough, and said third compartment providing an attrition chamber furnishing a high tumbling action to further reduce the size of the remaining lump material;

    an outer cylinder concentric with said inner cylinder, said outer cylinder extending beyond said inner cylinder at said first end of said inner cylinder forming said first compartment providing intake of lump material therein;

    said intake compartment being of larger diameter to receive the lump material and having high profile spaced apart teeth arranged in helical flights, said teeth advancing the lump material without substantial surges through said first compartment, and said intake compartment having a diameter larger than the diameter of said inner cylinder;

    said teeth of said first compartment breaking the lump material into smaller pieces and advancing the smaller pieces into said crushing chamber where the lump material is crushed into further smaller pieces, the smaller pieces of lump material then passing into said attrition chamber;

    said crushing chamber including a slotted disc proximate the juncture of said second compartment with said first compartment; and

    a crusher behind said slotted disc and having a length of weighted material disposed for partially resting upon the inner surface of the inner cylinder, a head proximate said first section and an opposite tail generally resting upon said inner cylinder, said head including a plurality of high profile teeth spaced thereon to crush the lump material, said tail including a plurality of suspension devices thereon to gradually feed and deliver the lump material and forcing it underneath the crusher, said crusher being urged into rotation by turning of said inner cylinder, said head being pivotally suspended approximately centrally of the inner cylinder;

    a suspension device pivotally holding said tail of said crushing means upon the inner cylinder, said suspension device including a series of links supporting said head of said crusher generally centered within said inner cylinder behind said slotted disc, said suspension device providing rotation of said crusher at a different speed of rotation from that of the inner cylinder;

    said attrition chamber having at least a partially perforated cylinder wall where high tumbling action further reduces the size of the pieces of the lump material to particulate matter so as to pass a substantial portion of the material through its perforations, at least one major vane extending in a continuous helical manner along said attrition chamber;

    said inner cylinder at its second end having an exit, said exit being partially annular and having a radius less than the diameter of said inner cylinder, any material not passing through the perforations of said attrition chamber leaves said attrition chamber through said exit;

    at least one conveying vane provided intermediate said inner cylinder and said outer cylinder for longitudinal movement of any particulate matter deposited therein generally in the opposite direction of the lump material passing within said inner cylinder;

    at least one screen at least partially surrounding said intake chamber, said particulate matter moved by said conveying vane being deposited onto said at least one screen for further classification of the particular matter, the matter remaining on the screen being recycled back into the intake compartment; and

    ,a base incorporating drive means supporting the drum and driving the drum in rotation.

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