Presentation on theme: "Asr ® Automatic Scrap Recovery System. 2 Applications: Blown film Cast film Stretch wrap Tape lines Tacky films Extrusion coating of paper textile and."— Presentation transcript:
asr ® Automatic Scrap Recovery System
2 Applications: Blown film Cast film Stretch wrap Tape lines Tacky films Extrusion coating of paper textile and nonwovens …
3 Flow sheet of a typical asr ® system
Roll feeder (including control) Tube material Strips Cutter Bagging stand Support stand (for example a blender above the refeed machine) Silencers for tubes or sound enclosures for the grinder 4 Standard elements of an asr ® system: Pickup manifold Inducer Film grinder with air eliminator and fluff blower Refeed machine with cyclone Controls for all elements Optional available from PROCESS CONTROL:
5 Pickup manifold PP-Series The pickup manifold introduces the trims into the tube system. It has to be designed in a way that all pickup bells have the same air speed to pick up the trims securely.
6 Inducer IN-Series Venturi gap Air from blower Vacuum Air flow Inlet tube set screw The vacuum and blow out-air is produced by a venturi (principle of an aircraft wing). IN405 IN202 compact version „MINIDUCER“
7 Available models: 50,8 mm inlet tube:other models like -IN202:1,1 kW(50 Hz)IN3… series available 101,6 mm inlet tube: -IN405:4,0 kW(50 Hz) -IN407:4,6 kW(60 Hz) -IN410:7,5 kW(50 Hz) 8,6 kW(60 Hz) -IN415: 11 kW(50 Hz) -IN420: 15 kW(50 Hz) 12,6 kW(60 Hz) 152,4 mm inlet tube: IN6...Special design available Inducer IN-Series
8 GF-Series film grinder Air eliminator Manual feed chute (available as an option) Roll feeder (available as an option) Fluff blower Cutting chamber By using the „scissors cut“ principle PROCESS CONTROL‘s grinders produce an absolute uniform fluff with a narrow particle size distribution and a high bulk density View into the cutting chamber Scissors cut working principle The quality of the fluff has a big influence on the ability to refeed the material. PORCESS CONTROL grinders ensure always an outstanding quality of the ground material.
9 GF-Series film grinder Models: -GFA:1 stator knife, 2 rotor knives Cutting chamber: 191 x 157 mm Motor: 4 kW -GFB:1 stator knife, 3 rotor knives Cutting chamber: 292 x 241 mm Motor: 15 kW -GFC:1 stator knife, 3 rotor knives Cutting chamber: 445 x 336 mm Motor: 22,5 kW oder 30 kW -GFD:2 stator knife, 3 rotor knives Cutting chamber: 637 x 406 mm Motor: 37,5 kW to 5 kW
10 Edge trim grinder M100 Cutting chamber M100Edge trim grinder M100
11 Edge trim grinder M100 direct 4 kW-drive, completely mounted on a frame Max. troughput 25 kg/h 2 rotor- and 2 stator-knives with scissor cut-principle Screen with 5 mm width Suction and transport blower Electric power supply: 400 V, 50 Hz, 3 Ph, 20 A Noise level max. 72 d(B)A
12 Air eliminator AEN Mounting Instruction: Each AEN has a decal showing how to mount the end of the pipe work. The AEN ensures that the trims fall into the cutting chamber by gravity, without turbulences and ball-building. The constant alimentation into the grinder is an important point for getting a fluff of perfect quality.
13 Refeed machine RMX Models: -RMX2 -RMX3 -RMX4 -RMX5 The refeed auger reaches into the throat of the extruder.
14 Refeed machine RMX (cut) 1. Variable speed drive 2. Fluff hopper 3. Virgin material chamber 4. Scrap compacting zone 5. Virgin drain 6. Fluff access door (safety interlocked) 7. Auger with bridge breaker 8. High level switch Compacted fluff Virgin material Cut view: column of compacted fluff surrounded by virgin material
15 Scrap compacting zone of a refeed machine The fluff is compacted from a bulk density of approx. 80 – 100 g/dm³ to approx. 300 – 400 g/dm³. The high degree of compaction ensures that „pumping“ of the extruder is avoided.
16 Refeed machine RMX (main dimensions) and control unit RMX control unit dimensions app. 600*600*250 mm dimensions in mm
17 Fluff hopper silo For intermediate storage in case of off-line operating RMX refeed machine Capacity up to dm³
18 Reduces operating costs and improved quality + Eliminates scrap handling costs + Automatic system decreases labor requirements = A high return on investment Benefits
19 First of all it seems that repelletising has advantages because you get a material that is easy to handle, but … The additional melt process degrades the material chemically: the melt flow index (MFI) changes. The quality of the product is influenced negatively. In-line recycling does not bring additional heat into the material. In-line recycling is always much more cost effective regarding the energy consumption. asr ® in comparison to repelletising
20 Examples for application cast film line tape line
21 Examples for applications diagrammatic plan of the tape line from page 16
22 Examples for applications Refeed Machine GUARDIAN ® Batch Blender Fluff silo Bagging Stand
23 Examples for applications Bagging stand IN trim conveying system
24 Data recording for preparing a quotation: In this data sheet all necessary data concerning the extruder and the process are caught