In a waste paper pulping line, the high density cleaner is positioned after the hydrapulper and before the coarse screening and refining equipment; it utilizes a centrifugal force field to rapidly separate out heavy contaminants—such as grit, metal fragments, glass shards, and nails—that have a specific gravity significantly higher than that of the fibers. If not promptly removed, these heavy contaminants accelerate wear on the screen baskets of downstream pressure screens, damage refiner plates, and can even disrupt the normal operation of the paper machine.
Centrifugal Separation: Tangential pulp feed creates a vortex; heavy impurities are thrown against the conical wall and settle, while fibers rise and exit from the center.
Ceramic Cone: Features an alumina ceramic liner with a wear-resistant service life of 7–9 years; the split design facilitates easy replacement.
Low Fiber Loss: Balanced water creates a seal preventing fibers from entering the reject tank, while backflush water recovers fibers.
No Drive Mechanism: No moving parts; driven by feed pressure, resulting in a low failure rate and simple maintenance.
Automatic Reject Discharge: Pneumatic valves discharge at timed intervals (adjustable cycle) to prevent impurity buildup or pulp loss.
Multi-stage Configuration: Accepted pulp from the first stage proceeds to the next process, while rejects go to the second stage for fiber recovery, increasing pulp yield.
Flexible Installation: Vertical structure with a small footprint; units can be installed individually or in parallel without requiring a dedicated foundation.
If you are struggling with heavy impurities in your pulp, or wish to optimize the fiber recovery rate and energy efficiency of your existing slag removal system, please feel free to contact us for more details about high density cleaner. Our email:leizhanpulper@gmail.com
