TECHNOLOGY | WASHING
the material to the centre of the machine from where the material is processed to the top where it is then discharged via a tangential pipe through an integrated fan. The rotor is configured in steps and accelerates the flakes through its angled paddles and increases the diameter of the flow in every step. Centrifugal forces are at a maximum when the product is leaving the machine. Separated water and impurities are discharged
through holes in the screen basket. Impurities are collected by a continuously operating rubber scraper on the outside of the screen basket. The waste is collected at the bottom of the machine and discharged through an opening for further conveying. Machine parts with product contact are made out of stainless steel. There are two machine sizes available – the T 15/12 ES is capable of processing up to 2,500 kg/h of rigid flakes per hour, while the T 15/21 ES can handle 4,500 kg/h. B+B says that special features of the flake step dryer include: separation of liquids and impurities by rotor and screen basket; high throughput performance; high dewatering perfor- mance; a low amount of fine parts produced; gentle material treatment; a residual moisture
content of the flakes that is less than 1% w/w; low yield loss; compact design; and low operating costs resulting from a low connected load. Amut has developed PET bottle washing lines
with throughputs from 500-6,000 kg/h. The compa- ny says that the washing lines offer a continuous process with substantial savings of water. Flakes produced are suitable for a number of applications, including bottles, packaging, fibres, sheet and strapping. Amut adds that its plants are designed to cut down management costs, minimise water consumption, chemical products, utilities, gas and wastewater, and reduce operator intervention. PET flake quality manufactured by Amut recycling technology is claimed to be almost comparable to virgin PET. Other features include that glue residuals are almost absent, PVC and floating materials are reduced to a minimum, organic residuals are traced between 0-70 ppm., and residual soda is insignifi- cant, as confirmed by a rise in pH.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.krones.com �
www.bub-anlagenbau.de �
www.amutgroup.com
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