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COMPOSTSCREEN OVERSIZE
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Best Solution. Smart Recycling. doppstadt.com
APPLICATIONS
COMPOST SCREEN OVERSIZE PROCESS DESCRIPTION
If left untreated, compost screen oversize has to be incinerated at great finan-
cial cost. Due to the described processing these costs can be lowered. What’s
more, the following useful fractions are produced:
HIGH-CALORIFIC REFUSE-DERIVED FUELS (foils, see image top left),
REGENERATIVE, MEDIUM-CALORIFIC REFUSE-DERIVED FUEL (biomass, see image top centre),
STRUCTURAL MATERIAL FOR COMPOSTING (see image top centre),
INERT STONE FRACTION (see image top right).
All fractions listed here are also free from surface contamination in the form of
sand or compost.
COMPOST SCREEN OVERSIZE Process description
The heavy fraction proceeds to the sink-
float separation system to separate
stones from wood. Part of the float ing
fraction is send back into the windrow to
serve as structural material in the com-
posting process.
The rest can be utilised as fuel in a
biomass power plant. The water used
in the sink-float separation is than tre-
ated in a lamella clarifier to remove se-
diments and re-circulate the water back
into the process.
The process of treating compost screen
oversize consists of a wind sifter, sink-flo-
at separation, including removal of surfa-
ce contamination from the light fraction,
and treatment of the process water. The
screening machine screens the fine com-
post, which is than ready to use for gar-
dening and farming purposes.
The screen oversize proceeds directly
into the wind sifter, where light foil
is separated. The foil can be sent for
incineration as high-calorific fraction.
The water treatment is normally carried
out by a lamella clarifier in combinati-
on with a dosing station to remove the
suspended solids as well. In this way, spa-
ce requirements of the water treatment
are reduced to a fifth of that needed by a
conventional settling tank or basin.
Additionally, this choice of equipment
makes it possible to offer services as a
contractor or to change process layout
according to changed conditions and
customer reqirements.
Doppstadt is one of the world’s leading
suppliers of innovative solutions in the
field of environmental technology.
The company specialises in the treat-
ment and processing of reusable ma-
terials obtained from waste, biomass,
earth, sand and gravel. Its portfolio
includes easy-to-maintain, easy-to-
use machines for the most complex
and challenging applications such as
crushing, separating, sifting, mixing,
splitting, wet processing and con-
veying. The company employs 700
people in locations all over the world
to work on its machines, processes
and solutions. The Group has an
international network of dealers,
with 42 partners in 45 countries. The
Doppstadt Group was founded in
1965 and has centres of expertise at
Velbert (prototype development and
production), Wülfrath (sales and ser-
vice), Calbe (series production) and
Wilsdruff (water based separation),
in Germany.
THIS IS DOPPSTADT
COMPOST SCREEN OVERSIZE PROCESS OVERVIEW
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
FOILS
FINISHED COMPOST WOODOUTPUT
OUTPUT
FEEDING
RAW COMPOST, WINDROW COMPOST
INPUT
FLOAT-SINK SEPARATION
OUTPUT
STONES
OUTPUT
WINDSIFTING
TROMMEL SCREEN
TROMMELSCREEN
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
WATER TREATMENT Water treatment guarantees continuous
operation and consistent separation.
Depending on the material, a dosing
station may also be necessary along
with the lamella separator.
SINK–FLOAT SEPARATION The HDS-M separates the stones from the wood by density.
Additionally, the wood fraction is cleaned of surface
contaminants such as sand in a washing drum.
WIND SIFTING The foils are separated from the
heavy fraction and discharged into
a container or onto a conveyor belt.
The heavy fraction is passed over to
the HDS-M via the side conveyor to
undergo sink–float separation.
COMPOST SCREEN OVERSIZE PROCESS OVERVIEW
SCREENING An SM 518 is perfect for screening the
finished compost and getting the most
out of the subsequent treatment steps.
PROCESS DIAGRAM
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
TROMMELSCREEN
STAR SCREEN SPLITTER
COMBUSTION
COMBUSTIONSINK–FLOAT SEPARATION
ROTTINGPROCESS
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
ZUFUHR
INPUT OUTPUT
KOMPOSTUMSETZER
BALASTISCHERSEPARATOR
MANUELLE SORTIERUNG
ROTTE-PROZESS 1
SCHREDDER SCHNELLLÄUFEREXAKTHACKER
NACH-ZERKLEINERER
ROTTE-PROZESS 2
SPLITTER
SCHNECKEN-PRESSE
SCHWIMM-SINK-TRENNUNG
WIND-SICHTUNG
ROTTE-PROZESSVERBRENNUNG WASSER-
AUFBEREITUNG
TROMMELSIEBSTERNSIEB
SCHREDDER LANGSAMLÄUFER
WIRBELSTROMABSCHNEIDER
AUFGABEBUNKER
NAHINFRAROTSORTIERUNG
EISEN
METALL-SEPARATION
MIXER
ÜBERKORN
DRUMCHIPPER
FEEDING
LOREM IPSUMDOLOR SIT AMET
INPUT
EISEN
METALSEPARATION
WINDROW TURNER
BALASTICSEPARATOR
DRUM CHIPPER
MANUAL SORTING
ROTTING PROCESS 1
ROTTING PROCESS 2
SPLITTER
SQUEEZER
FLOAT-SINK SEPARATION
WINDSIFTING
ROTTING PROCESS COMBUSTION WATER
TREATMENT
TROMMEL SCREEN STAR SCREEN
SLOW SPEEDSHREDDER
HIGH SPEEDSHREDDER
EDDY CURRENT SEPARATOR
FEEDING HOPPER
NEAR INFRA-RED BASED SORTING
OVERSIZE
OUTPUT
MIXER
DUMP
NEAR-INFRAREDSORTING
MID SPEED SHREDDER
GENERAL VIEW OF MACHINES
COMPOST SCREEN OVERSIZE MACHINE OVERVIEW
BASICBasic 518
SMSM 414
SM 414 K
SM 518 Plus
SM 620 Plus
SM 620 K Plus
SM 620 SA Plus
SM 720 SA Plus
SMSM 518 A
SM 518 F
SM 620 A
SSTSST 518
SST 720
SST 725
SST 1025
SST 1525
HSHS 401 Selector
HS 800 Selector
WSWS 2000 K
AIRFLEXAirFlex 1500
HDSHDS-L
DSTDST 512
DST 712
WSWS 1001
WS 1501
WS 2001
WS 2501
WS 3001
HDSHDS-S
HDS-M
SPLITTER®H2 System
SPLITTER®Unit 325
Unit 425
Unit 625
MOBILE
STATIONARY
SEPARATION/SCREENING
TROMMEL LINE
SEPARATION/SCREENING WIND SIFTING SINK–FLOAT SEPARATION
FLATFLEX LINE / STAR SCREEN LINE WINDSIFTER LINE WATERSIFTER LINE
SEPARATION/SPIRAL SHAFTS
SPLITTER LINE
Further processing Further processing Further processing Further processing Further processing
Werner Doppstadt
Umwelttechnik GmbH & Co. KG
Steinbrink 13, D-42555 Velbert
Telefon +49 2052 889-0
Treat compost screen oversize with solutions from Doppstadt
• Reduced disposal costs
• Recycling of compost structure material
• Sale of clean biomass fuel
Apr
il 20
18