Technical facilities

Listed below are the technical facilities of the Department of Processing and Recycling including technical specifications. The technical facilities are utilized for academics and research as well as services.

Lab sieving tower

Photo of laboratory sieving tower Department of Processing and Recycling
Manufacturer Retsch
Diameter of Screen Linings 200 mm
Mesh Sizes various sizes from 10 μm to 20 mm
Field of Application

Determination of particle size distributions

Spectrometer

Photo of a spectrometer Department of Processing and Recycling
Manufacturer IoSys
Type mIRoSpark
Characteristics
  • Reliable identification of: PA6x, PA12, PE, PP, ABS, PS, PPO, PCA, PBT, PET, PC, PMMA, POM, PVC, PPS, Teflon and Silicone Rubber
  • Detection of polymer compounds (requires appropriate calibration)
  • Reliable detection of black plastics
  • Output of data (type of plastic e.g. PVC and additives e.g. Br) on info display
Measurement Method Near-infrared spectroscopy in addition to Sliding Spark technologies (for detection of dark and black plastics as well as additives)

Analysis drum sieve

Photo of an anlysis drum sieve Department of Processing and Recycling
Manufacturer self-made
Type of Movement rotating
Input Power 2,2 kW
Diameter of Drum Screen 1.500 mm
Installation Polygonal screen with 8 screen linings
Dimensions of Screen Linings 950 x 560 mm
Revolution adjustable
Mesh Sizes 10; 20; 40; 60; 80; 100; 120; 140; 160; 200; 240; 300 mm,
further mesh sizes can be manufactured
Field of Application
  • Determination of particle size distributions
  • Determination of optimal residence time
  • Determination of optimal screen cut
Other designed for mobile deployment

Box sieve

Photo of a box sieve Department of Processing and Recycling
Manufacturer Siebtechnik
Type of Movement Circular Vibratory Screen

Dimensions of Screen Linings

500 x 500 mm
Input Power 0,75 kW
Revolution 1.400 RPM
Mesh Sizes

1; 2; 4; 6,3; 10; 20; 31,5; 40;

50; 63; 80; 100 mm

Field of Application Determination of particle size distributions

Vibration sieve

Photo of a vibration sieve Heger Gmbh + Co. KG
Manufacturer Heger
Type of Movement Circular Vibratory Screen

Dimensions of Screen Linings

500 x 1000 mm
Input Power 0,2 kW
Mesh Sizes

1; 2; 4; 5; 8; 10; 16; 20 mm round hole

10 mm square hole

Field of Application Determination of particle size distributions
Sieve Inclination variable: 0-16
Frequency variable: 0-60 Hz
Weight 180 kg

Bahco sifter

Photo of a Bahco sifter Department of Processing and Recycling
Manufacturer Fa. Etabliss. Neu, France
Input Power 0,66 kW
Revolution 3000 RPM
Flow Capacity approx. 1 g/min
Cut-Off 2 - 60 μm
Product Quantity (min)

6 g

RFA-Spectrometer

Photo of a RFA-spectrometer Department of Processing and Recycling
Manufacturer Spectro
Type Spectro Xepos
Characteristics
  • Detection and simultaneous analysis of all elements in the range from sodium to uranium
  • Reliable analysis of major, minor and micro elements in light matrices (e.g. petroleum, benzine, polymer)
  • Precise analysis of major components in oxidic samples
  • Detection and analysis of solid, powder and liquid media; in particular detection and analysis of metal alloy and alloying elements on fragmentary samples
Example of use
  • Analysis of minor components in iron ore
  • Analysis of blast furnace slag
  • Analysis of cadmium in polymers
  • Analysis of aluminium alloy etc.

Pycnometer

Photo of a Pycnometer Department of Processing and Recycling
Manufacturer Micromeritics
Type AccuPyc 1340
Dimensions 27,3 x 36,2 x 17,9 cm
Sample Chambers [cm] 1, 10, 100, 350, 2000
Characteristics
  • Calculates density by measuring the amount of displaced gas
  • Measures volume and density of solids and slurries from 0,1 to 100 ml
Precision Reproducibility typically within 0.01% of the nominal full-scale sample cell chamber volume
Accuracy

Accurate to within 0.03% of reading, plus 0.03% of sample capacity

Chamber furnace

Photo of a chamber furnace Department of Processing and Recycling
Manufacturer Heraeus
Type K 1253 S
Nominal Temperature

1150 C

Rated Input

12,04 kW

Heat-up time to 1150 C 85 min
Cooling time to 100 C 44 h
Capacity 60 kg
Effective Chamber Volume 32 l
Weight 240 kg

Box oven

Photo of a box oven Department of Processing and Recycling
Manufacturer Heraeus
Type TUH 125/200
Nominal Temperature

250 C

Rated Input

22,5 kW

Inner Dimensions 1250 x 1250 x 2000 mm

Jaw breaker

Photo of a jaw breaker Department of Processing and Recycling
Manufacturer Wedag
Input Power 1,5 kW
Stroke Rate adjustable,
50 – 220 min-1
Feed Grain Size (max.) approx. 220 x 130 mm
Area of Application Coarse grinding of minerals by pressure load (e.g. demolition waste)
Jaw Setting adjustable,
approx. 30 – 60 mm

Jaw crusher

Photo of a jaw crusher Department of Processing and Recycling
Manufacturer Krupp
Input Power approx. 2,2 kW
Stroke Rate approx. 420 min-1
Feed Grain Size (max.) 100 x 100 mm
Area of Application Medium comminution of minerals (e.g. demolition waste)
Jaw Setting approx. 10 mm

Hammer mill (large)

Photo of a large hammer mill Department of Processing and Recycling
Manufacturer self-made
Input Power 30 kW
Peripheral Speed (max.) adjustable up to 75 m/s
Mesh Sizes 4; 20; 40; 60; 80 mm
Hammer Dimensions (max.) approx. 40 x 40 x 120 mm
Hammer Weight (max.) approx. 2 kg
Alignment of Hammers 4 supporting axles, different alignments possible, hard and soft materials (e.g. waste wood, electronic scrap, hard plastics)
Field of Application Selective comminution
Other Dedusting with cyclone and bag filter

Hammer mill (small)

Photo of a small hammer mill Department of Processing and Recycling
Manufacturer Condux
Type of Crusher High speed
Main Types of Loads Impact, Shearing
Weight 30 kg
Input Power 3 kW
Revolution 2850 RPM
Mesh Sizes 0; 1; 2; 3; 4; 5; 6; 8;
11 mm
Feed Grain Size (max.) 100 x 60 mm
Rotor Width 150 mm
Alignment of Hammers 4 axles with different numbers and alignments of hammers possible. Various hammer shapes.
Field of Application Numerous materials and mixed materials. Selective comminution possible
Other Dedusting with cyclone allows for material recovery; Cryogenic comminution

Impact mill (large)

Photo of a slarge impact mill Department of Processing and Recycling
Manufacturer Hazemag
Type of Crusher High speed
Input Power 18 kW
Peripheral Speed (max.) adjustable up to approx.19 m/s
Feed Grain Size (max.) approx. 360 x 280 mm
Field of Application Fine and medium comminution of hard, brittle materials; Digestion of compound materials
Jaw Setting adjustable

Impact mill (small)

Photo of a small impact mill Department of Processing and Recycling
Manufacturer Hazemag
Type of Crusher High speed
Input Power 1,1 kW
Feed Grain Size (max.) approx. 100 x 100 mm
Field of Application Fine comminution
Jaw Setting adjustable

Flat roller mill

Photo of a flat roller mill Department of Processing and Recycling
Manufacturer Wedag
Feed Grain Size (max.) approx. 10 mm
Field of Application Medium and fine comminution of minerals (e.g. refractory material )
Jaw Setting adjustable
Other deflectably mounted roll

Disc swing mill

Photo of a disc swing mill Department of Processing and Recycling
Manufacturer Siebtechnik
Dimensions of Grinding Jar 140 mm
Accessories Various grinding jars and rings
Field of Application Fine and micro grinding for laboratory analysis

Disc chipper

Photo of a disc chipper Department of Processing and Recycling
Manufacturer Modified Installation; Basic structure DC 20 Delta Competent
Input Power

Drive: 15 kW; Feed roll: 1,1 kW

Revolution

infinitely variable up to 1.000 RPM

Number of Blades

2 rotor blades; 1 stator blade

Flywheel Weight approx. 100 kg
Blade Spacing 2 - 7 mm
Feed Grain Size max. 15 cm
Field of Application Comminution of wood (e.g. from green waste)
Other Measurement of torque and revolution at the drive shaft

Cutting mill (large)

Photo of a large cutting mill Department of Processing and Recycling
Manufacturer Reto
Input Power 37 kW
Rotor Peripheral Speed 9 m/s
Rotor Cutting Diameter 350 mm
Rotor Length 450 mm
Mesh Sizes 4; 5; 6; 8; 10; 12; 15; 20; 30; 40; 50; 60; 70; 80 mm
Field of Application All materials shreddable by shearing (e.g. lightweight packaging, paper, plastics etc.)
Other Requires upstream, efficient metal precipitation

Cutting mill (small)

Photo of a smallcutting mill Department of Processing and Recycling
Manufacturer Dreher
Input Power 2,2 kW
Rotor Peripheral Speed 10 m/s
Rotor Cutting Diameter 160 mm
Rotor Length 200 mm
Mesh Sizes 1; 2; 3; 4; 5; 6; 8 mm
Field of Application All materials shreddable by cutting
(e.g. lightweight packaging, paper, textiles etc.)
Other Requires upstream, efficient metal precipitation;
A vacuum device may be applied to support discharge

Laboratory cutting mill

Photo of a laboratory cutting mill Department of Processing and Recycling
Manufacturer Retsch
Input Power 1,75 KW
Peripheral Speed 10 m/s
Mesh Sizes 0,5; 0,75; 1; 1,5; 2; 4; 6; 8; 10 mm
Field of Application All materials shreddable by cutting
(e.g. lightweight packaging, paper, textiles, fuel surrogates etc.); Used for sample preparation
Other Requires upstream, efficient metal precipitation;
A vacuum device may be applied to support discharge

Rotary shear

Photo of a rotary shear Department of Processing and Recycling
Manufacturer Moco
Input Power 7,5 kW
Peripheral Speed approx. 0,5 m/s
Cutter Clearence -
Cutting Disc Width 28 mm
Feed Grain Size (max.) approx. 400 x 350 mm
Field of Application Precrushing (e.g. wood, plastics, paper and board, electronic scrap)
Other Rotors reversible in case of overload

Single shaft shredder

Photo of a single shaft shredder Department of Processing and Recycling
Manufacturer Vecoplan
Input Power 22 kW
Rotor Revolution 50 -200 min-1
Rotor Length 800 mm
Ram Working Pressure max. 160 bar
Mesh Sizes 10, 20, 30, 40, 60 mm
Field of Application All materials shreddable by shearing (e.g. lightweight packaging, paper, plastics etc.)
Other Requires upstream metal precipitation

Crank shaft sieve

Photo of a crank shaft sieve Department of Processing and Recycling
Manufacturer Wedag
Type of Movement Linear Vibratory Screen

Dimensions of Screen Linings

1.200 x 500 mm
Input Power 1,2 kW
Mesh Sizes 5; 6; 8; 10; 12; 17; 18 (square hole) 6; 10; 18; 30; 36; 50; 80 (round hole)
Field of Application Gentle sieving (e.g. chipped wood)
Other Double-deck screen operation possible; Dedusting connection available

Flip-flop screen

Photo of a flip-flop screen Department of Processing and Recycling
Manufacturer Hein, Lehmann
Type of Movement Vertical throw
Input Power 2,2 kW
Mesh Area Dimensions 8 mats 500 x 355 mm (W x L)
Mesh Sizes 1; 2; 3; 4; 10; 18 mm
Field of Application Precise sieving for hard-to-screen feed materials (e.g. damp, sticky materials; electronic scrap)
Weight 800 kg
Other Adjustable screen inclination (15 – 25)

Tumbler screen

Photo of a tumbler screen Department of Processing and Recycling
Manufacturer Allgaier
Type of Movement swaying-swinging
Diameter 800 mm
Revolution 1.440 RPM
Mesh Area 0,4 m
Mesh Sizes 0,2; 0,3; 0,5; 1,0; 2,0; 4,0; 8,0 mm
Field of Application Fiber separation from slurry; Solid particle separation from water; Various sizing tasks
Other Multi-deck screen operation possible

Disc screen (small)

Photo of a small disc screen Department of Processing and Recycling
Manufacturer Vecoplan
Rotational Speed n/a
Screen Length 1200 mm
Screen Width 460 mm
Gap between Discs 17 mm
Number of Discs 20
Engine rev 1430 RPM
Drive Electric motor with v-belt drive

Disc screen (big)

Photo of a big disc screen Department of Processing and Recycling
Manufacturer self-made
Year of Manufacture 2013
Dimensions 1,50 x 3 m
Inclination adjustable (14,5 - 26,5) in 1 increments
Number of Shafts 5
Distance between Shafts adjustable
Distance between Metal Disks adjustable
Number of Metal Disks (max.) 12
Distance between Plastic Disks adjustable
Number of Plastic Disks variable, depends on distance between plastic disks
Rotational Speed 0-13 m/s
Revolution 0-120 RPM
Drive chain drive
Type of Movement rotating
Field of Application Classification of mixtures of recovered paper

Automatic Sorter CombiSense

Photo of an automatic sorter CombiSense Department of Processing and Recycling
Manufacturer Scan & Sort
Operating Principle Automatic picking via multiple sensors; Separation via blow-off nozzles
Weight 1,1 t
Input Power 5 kW
Compressed Air Demand 5 – 10 m/min
Infeed Width 1.200 mm
Belt Velocity adjustable up to 3 m/s
Sensors Color line scan camera and metal sensor
Feed Grain Size approx. 5 – 100 mm, pre-classified
Field of Application Optical sorting of various materials and metal sorting (e.g. waste glass, electronic scrap, minerals, residue from shredder plants etc.)
Capacity up to 20 t/h
Other Infeed via vibrating conveyor

Drum magnet separator (weak field)

Photo of a drum magnet separator (weak field) Department of Processing and Recycling
Manufacturer Steinert
Operating Principle drop-off
Weight 135 kg
Input Power 0,37 kW
Drum Revolution 35 RPM
Drum Dimensions 300 x 500 mm
Magnet System adjustable; permanent magnetic with disk poles
Induction of Magnetic Field approx. 0,15 Tesla at drum surface
Field of Application Separation of fine and coarse iron particles
Other Feed vibratory conveyor applicable

Drum magnet separator (medium field)

Photo of a drum magnet separator (medium field) Department of Processing and Recycling
Manufacturer Steinert
Operating Principle Drop-off or pull-out
Input Power 1,5 kW
Weight 150 kg
Drum Revolution adjustable, 27 – 270 RPM
Drum Dimensions 400 x 500 mm
Magnet System adjustable, permanent magnetic, Ne Fe B radial poles and one axial pole
Magnetic Induction approx. 0,4 Tesla at drum surface
Field of Application Separation of fine and coarse iron particles
Other Feed vibratory conveyor applicable

Suspension magnet separator

Photo of a suspension magnet separator Department of Processing and Recycling
Manufacturer Steinert
Operating Principle pull-out
Input Power 1,5 kW
Weight 1.000 kg
Magnet Dimensions 726 x 600 x 244 mm
Magnet System permanent magnetic
Operating Distance approx. 250 mm, depends on feedstock
Field of Application Separation of coarse iron components
Other transverse or longitudinal release

Suspension magnet separator "Silver Arrow"

Photo of a suspension magnet separator "Silver Arrow" Department of Processing and Recycling
Manufacturer Steinert
Operating Principle pull-out
Alignment transverse release via conveyor
Input Power 0,18 kW
Weight 65 kg
Magnet Dimensions 750 mm x 100 mm
Magnet System permanent magnetic, Nd Fe B
Magnetic Induction approx. 0,4 Tesla at belt surface
Belt Velocity adjustable via frequency inverter
Operating Distance (max.) approx. 70 mm
Field of Application Separation of fine-grained, slightly magnetic material

High gradient magnetic separator

Photo of a high gradient magnetic separator Department of Processing and Recycling
Manufacturer Steinert
Operating Principle drop-off
Input Power 0,11 kW
Weight 40 kg
Axel Distance 600 mm
Infeed Width 200 mm
Belt Width 240 mm
Head Drum Diameter 70 mm
Magnet System permanent magnetic, Nd Fe B
Magnetic Induction approx. 2,0 Tesla at belt surface
Belt Velocity adjustable via frequency inverter
Feed Grain Size (max.) approx. 4 mm
Field of Application Separation of fine-grained, slightly magnetic material
Other Feed vibratory conveyor applicable

Eddy current separator (large)

Photo of an eddy current separator (large) Department of Processing and Recycling
Manufacturer Steinert
Operating Principle selective separation of non-ferrous metals via magnetic fields induced by eddy currents
Input Power 2,2 kW (belt)
5,5 kW (magnetic wheel)
Weight 1.600 kg
Axel Distance 1.300 mm
Infeed Width 500 mm
Belt Velocity adjustable, 0,1 - 2,7 m/s
Magnet System displaceable, excentric magnetic wheel located in head drum; equipped with Nd Fe B permanent magnets
Frequency adjustable up to 3,000 rpm
Flow Capacity up to 5 m/h
Field of Application Separation of non-ferrous metals with grain sizes ranging from 1 up to approx. 150 mm (preliminary classification required)
Other Infeed via vibrating conveyor with integrated feed hopper

Corona drum separator (small)

Photo of an corona drum separator (small) Department of Processing and Recycling
Manufacturer Krupp
Operating Principle Separation via electric field
Input Power 0,34 kW
High Voltage 0 – approx. 40 kV at the electrodes
Drum Dimensions 180 x 400 mm
Drum Revolution infinitely variable:
75 - 375 RPM
Field of Application Material separation of mixed materials (conductors and non-conductors) with grain sizes from 0,1 to 4,0 mm (e.g. crushed electronic scrap)
Other

Single-stage sorting; Optional drying of material flow via infrared emitter; Infeed via adjustable vibrating conveyor with integrated feed hopper

Corona drum separator (large)

Photo of an corona drum separator (large) Department of Processing and Recycling
Manufacturer Steinert
Operating Principle Separation via electric field
Input Power 4,4 kW
High Voltage 0 – 30 kV at the electrodes
Drum Dimensions 300 x 400 mm
Drum Revolution infinitely variable
Field of Application Material separation of mixed materials (conductors and non-conductors) with grain sizes from 0,1 to 4,0 mm (e.g. crushed electronic scrap)
Other Single-stage sorting; Completely enclosed unit; Infeed via adjustable vibrating conveyor with integrated feed hopper

Cross-flow air classifier

Photo of a cross-flow air classifier Department of Processing and Recycling
Manufacturer self-made
Operating Principle Classification by air flow according to shape and density
Manufacturer of Centrifugal Fan VENTI-OELDE
Input Power of Centrifugal Fan 18 kW
Air Volume Flow adjustable, max. 12.000 m/h
Manufacturer of Light Fraction Separator HCKER POLYTECHNIK
Input Power of Rotary Valve 1,5 kW
Feed Grain Size (max.) ca. 200 mm
Field of Application Classification of light fraction components from composite waste; e.g. for enrichment of refuse derived fuels
Other Recirculating air classifier with adjustable exhaust air volume flow up to approx. 30%

Air table

Photo of an air table Department of Processing and Recycling
Manufacturer Happle
Operating Principle Classification according to shape and density in fluidized bed
Input Power Air Blower 7,5 kW
Input Power Screen 2,2 kW
Dimensions of Screen Linings 1.200 x 600 mm
Accessories Various screen linings with different mesh sizes: 0,3; 0,8; 1,25; 1,5 and 1,6 x 1,4 mm
Field of Application Separation of various mixed materials (e.g. cable scrap, plastic compounds, electronic scrap etc.)
Other Circulatory air operation with secondary air treament via cyclone and dust filter

Sorting centrifuge CENSOR

Photo of a sorting centrifuge CENSOR Department of Processing and Recycling
Manufacturer KHD – Humboldt WEDAG AG
Operating Principle Sorting according to density via centrifugal field
Weight 710 kg
Input Power approx. 16 kW
Operating Temperature (max.) 68 C
Permissible Separation Density (max.) 1,4 kg/dm
Pressure (max.) 1 bar
Filling Volume (max.) 15 dm
Inner Diameter of Drum 260 mm
Drum Wall Thickness 12 mm
Drum Revolution (max.) 4.400 RPM
Capacity approx. 20 kg/h of plastic foils; approx. 60 kg/h of hard plastics
Accessories Pumps; Slurry tank incl.stirrer
Field of Application Continous density separation of plastics
Other Feed Grain Size < 4 mm required

Sorting centrifuge "Baby" CENSOR

Photo of a sorting centrifuge "Baby" CENSOR Department of Processing and Recycling
Manufacturer Baker Process
Operating Principle Sorting according to density via centrifugal field
Weight 130 kg
Operating Temperature (max.) 80 C
Filling Volume (max.) 1,9 dm
Inner Diameter of Drum 200 mm
Drum Wall Thickness 4 mm
Drum Revolution (max.) 7.000 RPM
Operating Speed (max.) 5.000 RPM
Accessories Slurry tank
Field of Application Density separation of plastics
Other Batch mode operation