OPERATIONAL SEQUENCE (ESK „B“)
A piston in the backflush add-on diverts the material flow, so that only one screen support piston is passed through in the direction of flow. The screen package in the second screen support piston is now flowed through by the cleaned melt in a direction opposite of the normal direction of flow. As a result of the favorable channel geometry, dirt particles situated on the screen package are detached efficiently and removed with only little melt at the backflush add-on. The process is then performed in an analogous fashion on the other screen package. ECON‘s backflush system utilizes the favorable flow geometry and the melt pressure in order to clean the screen packages in a optimal, careful and repeated fashion before a screen change becomes necessary. The relatively large free filter area allows higher throughputs at lower sizes. The technological advantages of the patented ECON backflush system allow an optimal adjustment between maximum backflush effect and smallest possible pressure loss on the die. This can be adjusted individually at any time to each application.
On request we will be happy to arrange a visit to one of our customers, additionally a test run with your material in ECON’s technical centre is also possible.