Friction Plastic Washers
Friction washers remove dirt, grease and food stuffs from heavily contaminated plastics before further processing takes place.
Operation of Friction Washers
Rotajet Plastic Friction Washers are used to wash highly contaminated plastic films, PET, and rigid bottle granulate. Normally, the Rotajet friction washers are positioned after wet granulation and prior to Rotajet float sink tanks.
The Rotajet friction washer consists of a high-speed rotor mounted by two bearings, top and bottom, with a full hexagonal screen around the rotor. The rotor and screen are housed in a robustly manufactured frame that is mounted on an incline.
The liquid and plastic granulate mix from the wet granulator is fed into the base of the Rotajet friction washer. High-speed rotating paddles force the liquid and granulate mix to the outside screen, forcing the liquid and contaminants to pass through the screen. The plastic granulate is driven up the screen at high speed to the material outlet at the top.
The screen is fitted with outside spray bars to keep clean and free of plastic dust and paper pulp. For highly contaminated material, a pneumatic screen scraper can be fitted to scrape the screens clean and is used in conjunction with the spray bars.
The Rotajet friction washers are manufactured with easy-to-replace D2 paddles, and quick-release internal screen
The introduction of heat is an extremely effective way of removing contamination from a product, despite the intrinsic cost of its creation. As the temperature of the wash liquor increases the activation energy required reduces and decreases wash times, such the other factors remain constant.
Each of our friction washers can either be supplied with heated or ambient wash liquor to account for our customers varying needs. This can either be supplied directly from a source on your site or can be generated through steam, oil, gas or electricity by Rotajet products.
We aim to get back to any inquiry within 12 hours, so please contact us if you are interested in a specific machine or would like to discuss an individual cleaning application. Our friendly team are happy to help via email at firstname.lastname@example.org or by phone on +44 (0) 1924 271446.