Uscător centrifugal și mașină de deshidratare pentru uscarea plasticului

A highly effective, yet low-energy consuming piece of drying equipment, the dewatering machine utilizes centrifugal force to partially remove water from a flowing stream of plastic material. It has the distinct ability to take in material with elevated water content and reduce it to minimal levels. When integrated into our PE film washing line or PET bottle washing line, the dewatering machine is the initial unit in a series of machines.

Principiul de funcționare

The dewatering machine, or horizontal centrifuge, is remarkably similar to a friction washer; that is, at the center of both machines is a long shaft mounted with numerous panels or paddles. Surrounding this rapidly spinning shaft is a mesh screen tunnel. The entire apparatus is encased in a metal container where an electric motor is externally mounted.

As material is fed into the vertical feeder, the shaft spins at nearly 1,000 rotations per minute. The material within is constantly thrown outwards against the mesh screen tunnel. Water that passes through the mesh tunnel is collected for recycling while the plastic moves onto the next drying equipment, typically a thermal dryer. Broadly speaking, a dewatering machine can reduce moisture content to approximately 20-30%.

The centrifugal dryer uses centrifugal or “spinning” force to remove a portion of the water from plastic flakes. It’s a cost-efficient way to dry PET flakes, PP/PE flakes, and other plastic regrinds before they’re thermally dried. Rumtoo’s innovative centrifugal dryer also functions as a friction washer (cold water) that is used to cool and further clean plastic flakes in a scrubbing manner.

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