MAS Innovative Technology
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MAS-Pressemitteilung Mai 2012
Linz-Pucking, Jan 2013
MAS - Page 4
Innovative efficient melt filtration technology
The Upper Austrian MAS-Maschinen- und Anlagenbau Schulz GmbH founded in 2006 has recently attracted attention due to a range of technical innovations in extrusion and plastic recycling technology
MAS has made significant developments in terms of efficient melt filtration. The range of patent-protected continuous melt filtration systems is available in four power levels for flow rates of from 300 to 2,000 kg/h. The MAS filter innovationThe objective of MAS developments was to provide answers to problems presented by several other filtration systems. The focus here was not solely on the flow rate or filter performance, but in particular on favourable operating costs by minimising wearing parts as well as high service friendliness. The result is the continuously operating CDF melt filtration system. Its core component is a rotating filtration disc in the incoming melt flow and which the pressurised plastic melt flows through. The melt is filtered and then forwarded to the next system component on the extrusion system. The particles of dirt such as paper, wood, aluminium and rubber left behind on the filter plate or plastic particles which have not molten are stripped off using a stationary scraper on the opposite side of the housing together with a certain amount of the molten plastic, and discharged by an auger. This conveys the concentrated contaminants outwards (Fig. 1). The melt pressure regulates the contact pressure of the scraper via a mechanical piston-lever system. The entire filtration process runs continuously.
The filter discs are manufactured from tempered steel and available for filtration fineness of from 100m to 750m. The filter can be changed very quickly as the housing of the rotation filter is designed with a vertical division, with both halves of the housing connected to each other by a hinge, which enables ideal access to the relevant parts. The actual replacement is extremely simple and can be carried out in around 45 minutes using conventional tools.
Range with four sizes available The new filter range consists of three basic models the basic model CDF 300 (Fig. 3) with extremely compact design, the midrange model CDF 300-D (Fig. 2) which has been designed as twin version with 2 x CDF 300 and filter model CDF 500-D with 2 parallel filtration units with a diameter of 510 mm. The latter accordingly offers the substantial filtration area of 3.650 cm (Fig. 3)The CDF melt filters from MAS
Type CDF 300 CDF 300-D CDF 500 CDF 500-D
Diameter of filter 1 x 300mm 2 x 300mm 1 x 510mm 2 x 510mm
Filter surface 706 cm 1384 cm 1695 cm 3390 cm
Filtration finesse 100m - 750m 100m - 750m 100m - 750m 100m - 750m
Max. pressure difference 150 bar 150 bar 150 bar 150 bar
Max. pressure 200 bar 200 bar 200 bar 200 bar
Capacity 300 - 700 kg/h 700 - 1600 kg/h 700 - 1600 kg/h 1300 - 2000 kg/h
All in all, MAS extends far beyond the focus of melt filtration and provides a comprehensive portfolio including the conical co-rotating twin screw extruder as well as the dry-cleaning and reconditioning system for film flakes.
Contact: Geof PileKoga RecyclingtechEmail: email@example.comMob +61419558600
Author: Reinhard Bauer - TECHNOKOMMEmail: firstname.lastname@example.orgFigures: Diagram: MAS-Maschinen-und Anlagenbau Schulz GmbH
Fig.1: Functional diagram of the CDF filtration system from MAS. The incoming flow of molten plastic is shown in red, the cleaned melt in green. The central functional component is the rotating filter plate. Above this is the adjustable scraper and discharge screw for the contaminants.
Photo: MAS Maschinen- und Anlagenbau Schulz GmbH / Pucking
Fig.2: MAS melt filtration systems are available in three sizes or capacity classes. The photo shows the medium-sized CDF 300-D, consisting of a combination of 2 x 300 mm filtration units. In all this results in an active filter surface of 1384 cm and a flow rate capacity of between 700 and 1600 kg/h.
Photo: MAS Maschinen- und Anlagenbau Schulz GmbH / PuckingFig.3: The CDF 500-D with a filtration surface of 3650 cm for throughput ranges up to 2000 kg/h.MAS Maschinen- und Anlagenbau Schulz GmbH., A-4055 PuckingTel.: +43 (0) 7229/78999-11, Fax: -10, E-Mail: email@example.com www.mas-austria.com
MAS Maschinen- und Anlagenbau Schulz GmbH., A-4055 PuckingTel.: +43 (0) 7229/78999-11, Fax: -10, E-Mail: firstname.lastname@example.org www.mas-austria.com