Matthiessen film removal storage machinery

Operation

Recyclable materials are collected in bags. Unfortunately, these bags alone, as well as large sheets, are enough to create material congestion in the screen covers and transfer points, in the worst case it can even lead to complete stoppages. Unnecessary losses due to idleness can be reduced when sheets are separated before the sorting process.

Example: A Matthiessen bag opener is placed in a treatment plant whose task is to break the bags, therefore it carries out the 1st separation phase. Subsequently, a countercurrent device for removing large Matthiessen films is inserted, whose task is to completely empty the bags of the recyclable material present inside and separate it from the processing flow; 2nd separation phase. Then the recyclable materials (reduced films, yoghurt cups, tetra packs, cans etc..) are sifted out of the bags and fall for further processing onto subsequent conveyor belts, into material flow 1; while bulky films and the bags themselves pass over the rotor into material flow 2.

Material flow 1:
small recyclable materials such as Tetra Packs, bottles, organic substances etc. they are conveyed under the rotor to continue in the next processing phase.

Material flow 2:
It allows an increase in recycled material, such as e.g. the films are dragged onto the rotor and are torn then fall onto a belt behind the rotor, which transmits this flow of material to the oversize “film” remover.

The conveyor belt is speed-controlled. At a speed of 1-2 m/s the material is separated and moved onto the oversized film removal rotor. The air supply, targeted at the end of the conveyor belt, supports the separation between the >A2 film and the remaining compacted recyclables in the processing flow. The extended teeth, on the feed side of the oversized rotor, take the film and move it over the rotor onto the next conveyor belt. The reason why the film is prevented from wrapping easily around the rotor is the complete complete retraction of the teeth when dragging the bulky material. Compacted recyclables fall through the teeth into material flow 1.