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Expert guides on recycling line design, process optimization, maintenance, and project planning.
A container liner shredder has to handle two awkward materials at once: empty dry bulk container liners the size of a 20-foot box, and FIBC big bags — both carrying residual metal powder. This guide explains the feed, dust, and safety engineering behind shredding contaminated liners and bulk bags on one machine.
WEEE plastic is mostly valuable ABS and HIPS — until rubber feet, silicone keypads and elastomer gaskets drag it down to mixed scrap. This guide shows where elastic contamination fits among the other WEEE challenges, and how recyclers strip it out to sell prime single-resin flake.
Three separation methods can pull rubber and silicone out of plastic regrind — density sorting, electrostatic separation, and friction-elasticity separation. They are not interchangeable. This guide compares what each one actually removes, where each fails, and how recyclers combine them to hit a clean single-resin flake.
A centrifugal dryer spins off free surface water mechanically; a hot air (thermal) dryer evaporates the residual moisture a spin dryer physically cannot reach. They are sequential stages, not competitors. This guide explains which moisture each one removes, the energy gap between them, and when a recycling line actually needs the thermal stage versus when centrifugal drying alone is enough.
A thermal dryer is the hot-air stage that takes washed flakes below the moisture floor a mechanical dryer cannot reach. This guide shows exactly when a recycling line needs one — and how to size it from your real inlet moisture, throughput, and final-moisture target instead of buying on a vague kilowatt number.
A step-by-step plant workflow for removing silicone, rubber and elastomer contamination from plastic regrind — from feed prep and density pre-sorting to friction separation, second-pass recovery, and verifying you hit a sub-2% rubber residue.
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