Infrared Drum IRD - Soci

www.kreyenborg-pt.com | www.kreyenborg-group.com

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Infrared Drum IRD

Infrared Drum IRD

David Bargery Project Manager

[email protected]


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Kre

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roup

K

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The KREYENBORG Group

Kreyenborg GmbH Screen Changers, Gear Pumps, Polymer Valves

Bruckmann & Kreyenborg Granuliertechnik Underwater Pelletizing

Kreyenborg Plant Technology Infrared Dryer, Silos, Mixers, Fabrication

BSG Controls Extrusion Control Systems


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► Short wave Infrared Radiation – heating from the inside

Process technology

0 1 2 3 4 5 [µm]

Str

ah

lun

gsin

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sität

Halogen

Short wave

Fast midwave

Carbon

midwave

T Particle > T Ambient


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IRD Basic Design

Screw feeder Drum with welded helix

Infrared module

Temperature measurement

Cooling air supply for

Infrared Module


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IRD – Technology / Basic design


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Aluminiumoxideceramic

Process technology

KREYENBORG Infrared Heater Modules

► Specially developed for operating in dusty conditions

► long integrity lifetime of infrared lamps

► Infrared lamps with integrated reflectors

► low spare part costs


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Process technology

KREYENBORG Infrared Heater Modules

► Extensive tested and simulated technology


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KREYENBORG Infrared Drum

► modular design specific to the application

► over 200 possible combinations of drum design combined with installed

infrared power

► Throughput range from 20 kg/hr up to 5000 kg/hr (40 – 11.000 lbs/hr)

IRD – Product range


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Prozesszeiten IRD

0 5 10 15 20 25

PPS kristalliseiren

PET kristallisieren

EVA Wärmeprozess

HDPE Trocknung

PET

TPU

ABS/PC

PLA

LCP

Trocknungszeit [min]

IRD

IRD – Markets & Applications

KREYENBORG Infrared Drum IRD

► short residence times [min]


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IRD – Drying / Residence times

Prozessszeiten IRD - Konventionell

0 50 100 150 200 250 300 350

PPS kristalliseiren

PET kristallisieren

EVA Wärmeprozess

HDPE Trocknung

PET

TPU

ABS/PC

PLA

LCP

Trocknungszeit [min]

Konventionell

IRD


► short residence times [min]


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Energieverbrauch IRD

0 20 40 60 80 100 120 140 160

PPS kristalliseiren

PET kristallisieren

EVA Wärmeprozess

HDPE Trocknung

PET Trocknung

TPU

ABS/PC

PLA

LCP

Energieverbrauch W/kg/h


► less specific energy [W/kg/h]

IRD – Drying / Energy consumption


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Process technology

Why Crystallize and dry PLA

► Unlike many other major packaging resins (e.g., polyolefins, polystyrene,

and PVC), PLA biopolymer is produced by a condensation reaction. This

reaction, which also produces water, is reversible.

► Therefore, when undried PLA biopolymer is melted the resin and water

chemically react. Hydrolysis occurs and key mechanical properties of the

biopolymer are reduced.

► This hydrolysis reaction also changes the polymer melt viscosity and the

crystallization rate, making it very difficult to process into a quality end

product.


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► Difficult handling due to sticking of Flakes – good mixing

necessary

► Temperature sensitive in the area of 60 °C +/- 10 °C

► Specific material handling and temperature profiles

necessary

Application: Crystallization and Drying of PLA

IRD – Markets & Applications / PLA


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► Energy consumption 100 – 120 W/kg/h

Energieeinsatz PLA @ 13.8 min / 120 °C

Durchsatz 370 kg/h

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Zeitachse [hh:mm:ss]

En

erg

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[W

/kg

/h]

Energieeinsatz

IRD – Markets & Applications / PLA

Application: Crystallization and Drying of PLA


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Muenster Trial Facility available for customer trials

IRD – Trial Facility


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Examples of IRD in

‘Real Life’ applications Infrared drying is an industrially proven

process


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► Crystallization and Drying of PET sheet flakes in one process

► Throughput rate up to 900 kg/hr

IRD – Case Studies / Installations

Application: Austria – IRD B-160/270 sheet extrusion


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► 800 kg/h PET Thermoforming sheet Regrind


Application: Great Britain – IRD B-180/270-135


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Application: Belgium – IRD B-180/270

► 900 kg/h PET Sheet Flakes


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► each 1300 kg/h PE Pellets


Application: Czech Republic – 4 x IRD B-180/270-135


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► Crystallisation of thick PET-Regrind

► drying and crystallisation in one step

► 600 kg/h


Application: Ireland - IRD B-120/270-90


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► 600 kg/h PET Bottle Flakes1


Application: Columbia – IRD B-140/270-90


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► Crystallisation and Drying of PET-Bottle Flakes

► drying and crystallisation in one step

► Upgrade of an existing desiccant dryer from 250 kg/h to 550 kg/h


Application: Columbia – IRD B-140/270-90


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► each 800 kg/h PET and PLA Sheet Regrinds


Application: USA - 2 x IRD B-180/270-135


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Thank you

David Bargery

[email protected]

Infrared Drum IRD - Soci

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