This news article was originally written in Spanish. It has been automatically translated for your convenience. Reasonable efforts have been made to provide an accurate translation, however, no automated translation is perfect nor is it intended to replace a human translator. The original article in Spanish can be viewed at Soluciones económicas para el reciclado directo de recortes

Getecha Allows his recovery by means of an integrated process in the line of extrusion

Economic solutions for the recycled direct of cuts

Editorial Interempresas24/10/2011

The recycled direct of lateral cuts and head offices is considered by the industry of the extrusion of film and plate like the method of recovery more efficient. During the process of production, the system collects the waste, granulates them and feeds them again to the extruder. This process has a double challenge: the cycle has to be economic and the material reprocesado has to have the maximum quality. Getecha, represented in Spain by Coscollola commercial, offers solutions integrated in the process done to the measure of each customer.

By means of the reprocesado direct of the lateral cuts and head offices, the companies of the industry of the plastics reduce costs when reducing his shopping of prime matter. At the same time, by means of the external granulation head office, saves in resources required for the transport, storage and the processed of the granulated. This means that Getecha offers different innovative solutions for the reprocesado integrated in the process of cuts, for the manufacturer of films and plates. The systems of enclosed circuit designed for high speeds of line and high levels of efficiency in the costs, are adjusted to the lines of extrusion of the manufacturers and to the different types of film. In situations of three to five turns, amortise/amortize in less than a year.

Even to high speeds the system works without problems.

Quality of the granulated

Regarding the aseguramiento of the quality, the engineers of Getecha give a lot of importance to ensure that there is not an additional thermal load in the material fed neither in the granulated during the process of reprocesado. Also they ensure that the material recycled do not have any contaminante. The hygroscopic plastics or loads process directly, what means that they can not absorb humidity. The adaptable speeds of the rotor of the granulador and the filters designed especially avoid the problems and particles of dust in the process productive. Also it stands out the bajísimo level of noise.

A practical example of the reprocesado direct of lateral cuts and head offices is realising/realizing in two lines of extrusion already in course. In the phase of precorte and of manufacture, collect throw of 100 mm of width and to 350 m/min and succionan through tubes until a triturador for his back granulation. The fine granulation carries out by a granulador central Getecha RS 4506 with a capacity of production of until 500 kg/h. The circuit closes returning the material recycled to the main extruder by means of a conveyor of husillo developed by Getecha, available in different versions. This system can process cuts of films very thin of PE, PP and LDPE films (12 µm), to what adds that all the units that issue noise are situated in a cubículo with audible isolation.

A development of Getecha: the conveyor of husillo feeds the main extruder of form controlled with the granulated fine, previously processed in the granulador.

The loads require elimination of dust integrated

The triturado and return of the cuts of films of ABS/PP with a lot of content in load that have several millimetres/millimeters of thickness supposes a big exigencia for the technology of elimination of dust. The engineers of Getecha have resolved it integrating a system of extraction by empty in the system of enclosed circuit. In the part of the ciclón the material heads to través of a rotatory valve and the air of exit clean by means of filters of cartridge. Another special characteristic of this system is the granulador silent RS 3004-And with two separate takings whose speeds are regulated by a converter of frequency. The synchronisation/synchronization of the speed of entrance with the one of exit of the line of extrusion carries out automatically by means of a rotary potentiometer in the control of the granulador, a speciality/specialty of of Getecha.

Also for plate

In the field of the plates, also exists a system for the recovery of cuts, placing a cortadora under the zone of cooling of the line of extrusion. With the thickest plates (15 mm and more) the cortadora is to the same level that the plate. The residue falls to a conveyor and feed in continuous to a granulador RS 3004 or RS 3806 or alternatively to a container, for afterwards happen directly to the extruder. When it treats of plates foamed uses a husillo feeder more to return the material recycled with the end to avoid the separation of the materials by the different densities of the virgin material and the recovered.