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TamDrum™ Washing Reject Drum

The TamDrum™ processes rejects from the pulpers in waste paper applications. It provides separation of coarse rejects, small heavy contaminants, and floatable material while recovering fiber from the rejects stream. The coarse rejects are discharged 8-10% to the reject handling system.

The TamDrum™ Washing Reject Drum receives diluted pulp and rejects from a waste paper pulper. The rotating drum has perforations that prevent large rejects from returning to the process. Material enters into the submerged portion of the drum, where fiber and rejects are tumbled through the filtrate. This helps to recover the good fiber from the coarse rejects. The coarse rejects are retained inside the drum and conveyed by an internal screw flight through the dewater zone drum out to customers rejects processing system.

The washing zone of the drum also separates sand, staples, grit, and glass from the pulp suspension. This heavy material settles to the bottom of the vat collecting the accepted filtrate. The material is collected by a screw conveyor and conveyed into a double valve junk trap that cycles at preset intervals to discharge the fine heavy material into a collection bin.

The filtrate collection tank provides a place for lightweight material such as small Styrofoam and other floating debris to separate rising to the surface. A small open ended screw conveyor continuously scalps the floating rejects removing them form the process stream.

It is recommend all the drives be equipped with VFD™ units so the speed can be optimized to the varying rejects quantities in waste paper furnishes.

  • 316L stainless steel construction or equivalent corrosion resistant steel
  • Low power requirements
  • Separate Washing and Dewatering Zones
  • Heavy rejects collection and removal
  • Floating lightweight collection
  • Continuous discharge of rejects from the system
  • Cleaning showers with internal cleaning brushes
  • Separation of coarse, heavy, and floating light rejects results in easier handling of the rejects streams
  • Fiber recovery from the pulper reject stream to minimize fiber loss
  • Flexibility to be optimized for the amount of contamination of the incoming waste paper
general requests

TamDrum™ Washing Reject Drum

The TamDrum™ processes rejects from the pulpers in waste paper applications. It provides separation of coarse rejects, small heavy contaminants, and floatable material while recovering fiber from the rejects stream. The coarse rejects are discharged 8-10% to the reject handling system.

  • Further Details

    The TamDrum™ Washing Reject Drum receives diluted pulp and rejects from a waste paper pulper. The rotating drum has perforations that prevent large rejects from returning to the process. Material enters into the submerged portion of the drum, where fiber and rejects are tumbled through the filtrate. This helps to recover the good fiber from the coarse rejects. The coarse rejects are retained inside the drum and conveyed by an internal screw flight through the dewater zone drum out to customers rejects processing system.

    The washing zone of the drum also separates sand, staples, grit, and glass from the pulp suspension. This heavy material settles to the bottom of the vat collecting the accepted filtrate. The material is collected by a screw conveyor and conveyed into a double valve junk trap that cycles at preset intervals to discharge the fine heavy material into a collection bin.

    The filtrate collection tank provides a place for lightweight material such as small Styrofoam and other floating debris to separate rising to the surface. A small open ended screw conveyor continuously scalps the floating rejects removing them form the process stream.

    It is recommend all the drives be equipped with VFD™ units so the speed can be optimized to the varying rejects quantities in waste paper furnishes.

  • Technical Information

    • 316L stainless steel construction or equivalent corrosion resistant steel
    • Low power requirements
    • Separate Washing and Dewatering Zones
    • Heavy rejects collection and removal
    • Floating lightweight collection
    • Continuous discharge of rejects from the system
    • Cleaning showers with internal cleaning brushes

  • Benefits

    • Separation of coarse, heavy, and floating light rejects results in easier handling of the rejects streams
    • Fiber recovery from the pulper reject stream to minimize fiber loss
    • Flexibility to be optimized for the amount of contamination of the incoming waste paper

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