DE4030256A1 - Disintegrated polyvinyl chloride plastics scrap sepn. - by sepg. polystyrene foam and polyethylene@ particles in tower with downward water current to move up=and=down - Google Patents
Disintegrated polyvinyl chloride plastics scrap sepn. - by sepg. polystyrene foam and polyethylene@ particles in tower with downward water current to move up=and=downInfo
- Publication number
- DE4030256A1 DE4030256A1 DE19904030256 DE4030256A DE4030256A1 DE 4030256 A1 DE4030256 A1 DE 4030256A1 DE 19904030256 DE19904030256 DE 19904030256 DE 4030256 A DE4030256 A DE 4030256A DE 4030256 A1 DE4030256 A1 DE 4030256A1
- Authority
- DE
- Germany
- Prior art keywords
- particles
- eps
- channel
- water
- polyethylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- -1 polyethylene Polymers 0.000 title claims abstract description 7
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 7
- 229920006327 polystyrene foam Polymers 0.000 title abstract 3
- 229920003023 plastic Polymers 0.000 title description 5
- 239000004033 plastic Substances 0.000 title description 5
- 239000004800 polyvinyl chloride Substances 0.000 title 1
- 229920000915 polyvinyl chloride Polymers 0.000 title 1
- 239000002245 particle Substances 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000004698 Polyethylene Substances 0.000 claims abstract description 16
- 239000004793 Polystyrene Substances 0.000 claims abstract description 4
- 229920002223 polystyrene Polymers 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 8
- 239000013502 plastic waste Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 claims 1
- 239000006260 foam Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 101100063504 Mus musculus Dlx2 gene Proteins 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000013622 meat product Nutrition 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
- B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
- B03B5/623—Upward current classifiers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0203—Separating plastics from plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0237—Mechanical separating techniques; devices therefor using density difference
- B29B2017/0244—Mechanical separating techniques; devices therefor using density difference in liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
- B29K2025/04—Polymers of styrene
- B29K2025/06—PS, i.e. polystyrene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/065—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts containing impurities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vor richtung zum Trennen zerkleinerter Kunststoff-Ab fälle mit unterschiedlichen spezifischen Gewichten, insbesondere Polystyrol (EPS) und Polyetylen (PE) mittels einer Flüssigkeit.The invention relates to a method and a direction for separating shredded plastic waste cases with different specific weights, especially polystyrene (EPS) and polyetylene (PE) by means of a liquid.
Besonders in der Lebensmittel-Industrie werden Pro dukte, z. B. Fleischwaren, in Polystyrol-Behälter abgepackt, die sodann mit Polyethylen-Folien ver schlossen werden. Auch werden beide Kunststoffsorten in Kombination für andere Verpackungsprobleme ein gesetzt.Pros are particularly popular in the food industry products, e.g. B. meat products, in polystyrene containers packed, which then ver with polyethylene film be closed. Also both types of plastic in combination for other packaging problems set.
Das Wiederaufbereiten derartiger Kunststoff-Abfälle führt bei den bisher bekanntgewordenen Verfahren zu Schwierigkeiten. Beide Produkte haben dicht beiein anderliegende spezifische Gewichte, so daß eine üb liche Schwimm-Sink-Scheidung nicht zum Erfolg führt. Flüssigkeiten, die leichter als Wasser sind, lassen sich nur mit großen Schwierigkeiten einsetzen, weil diese entweder extrem brandgefährdet oder hochexplo siv sind. Außer in der Großchemie lassen sich derar tige Flüssigkeiten nicht einsetzen; denn die mittel ständische Industrie, in denen derartige Verfahren überwiegend eingesetzt werden, verfügen nicht über entsprechende Sicherheitseinrichtungen.The recycling of such plastic waste leads to the previously known methods Difficulties. Both products are close together other specific weights, so that an ex swim-sink divorce does not lead to success. Leave liquids that are lighter than water to work with great difficulty because these are either extremely fire-prone or highly explosive are siv. Except in the big chemical industry, derar do not use any liquids; because the medium domestic industry in which such procedures predominantly used, do not have appropriate safety devices.
Der Erfindung liegt die Aufgabe zugrunde ein Verfahren zu schaffen, mit dem EPS- und PE-Abfälle sicher getrennt werden können. Ebenso soll eine Vorrichtung geschaffen werden, mit der das Verfahren durchgeführt werden kann.The invention is based on the object Process to create with the EPS and PE waste can be safely separated. Likewise one Device are created using the method can be carried out.
Diese Aufgabe wird dadurch gelöst, daß die unter schiedlich aufschwimmenden Kunststoff-Abfälle zer kleinert in eine Wasserströmung gefördert werden, die so eingestellt ist, daß die EPS-Teilchen stärker aufschwimmen als die PE-Teilchen und daß beide Sorten getrennt aufgefangen und abgeführt werden.This problem is solved in that the under different floating plastic waste be conveyed into a water flow, which is set so that the EPS particles are stronger float up than the PE particles and that both varieties collected and discharged separately.
Mit der eingestellten Wasserströmung wird sicherge stellt, daß die nur geringfügig unterschiedlich aufschwimmenden Kunststoffteilchen eine unterschied liche Richtung einnehmen und somit getrennt abge führt werden können. Die Wasserströmung kann lot recht oder waagerecht eingestellt werden. Im erste ren Fall stellen sich unterschiedliche Trennwege in lotrechter Richtung ein, nämlich nach oben und unten, und im zweiten Fall trennen sich die Teil chen nach oben bzw. in waagerechter Richtung, wobei ein überlagerter Wasserstrom den Trennvorgang unter stützen kann.With the set water flow, safety is ensured represents that the only slightly different floating plastic particles made a difference Liche direction and thus separated separately can be led. The water flow can be lot be set right or horizontal. In the first In this case, there are different separation paths in a vertical direction, namely upwards and below, and in the second case the parts separate chen upwards or in the horizontal direction, whereby a superimposed water flow under the separation process can support.
Das Verfahren mit der lotrechten Strömung kann mit tels eines lotrechten Schachtes und das Verfahren mit der waagerechten Strömung mittels eines waage rechten Kanals durchgeführt werden. Das Verfahren und die beiden Vorrichtungen werden anhand von zwei Ausführungsbeispielen beschrieben, die in einer Zeichnung schematisch dargestellt sind.The method with the vertical flow can also be used means of a vertical shaft and the method with the horizontal flow using a horizontal right channel. The procedure and the two devices are based on two Described embodiments that in a Drawing are shown schematically.
Es zeigtIt shows
Fig. 1 einen Schnitt durch einen lotrechten Schacht; FIG. 1 is a section through a vertical shaft;
Fig. 2 einen Schnitt durch einen waagerechten Kanal mit Zusatzeinrichtungen. Fig. 2 shows a section through a horizontal channel with additional devices.
Fig. 1 zeigt einen lotrechten Schacht 1, der etwa in halber Höhe eine Vorrichtung 2 zum Zuführen eines Gemisches aus unterschiedlichen, zerkleinerten Kunststoff-Abfällen, wie EPS und PE, aufweist. Diese Vorrichtung besteht aus einem Gehäuse 3 mit einer angetriebenen Schnecke 4 und einem Fülltrichter 5. Im oberen Teil 8 des Schachtes 1 ist eine Leitung 6 mit Regelventil 7 zum Zuführen von Wasser vorge sehen. Dabei ist das untere Ende 9 der Leitung 6 derart ausgebildet, daß sich ein Wasserschleier 10 einstellt, der den gesamten inneren Querschnitt des Schachtes 1 ausfüllt. Im oberen Teil des Schach tes 1 ist fernerhin eine Leitung 11 zum Abführen der EPS-Teilchen vorgesehen. Die Leitung 11 kann von einer Wanne 13 ausgehen, die über eine Öffnung 14 des Schachtes 1 gefüllt wird. Im unteren Teil 15 des Schachtes 1 ist eine Leitung 16 mit Regelventil 17 zum Abführen der PE-Teilchen vorgesehen. Die Strömung des Wassers innerhalb des Schachtes 1 wird durch Einstellung der Ventile 7, 12 und 17 derart eingestellt, daß das nach unten strömende Wasser die PE-Teilchen mit nach unten und daß das nach oben strömende Wasser die EPS-Teilchen mit nach oben nimmt. Fig. 1 shows a vertical shaft 1, which is about half the height, a device 2 for supplying a mixture of different, comminuted plastic waste, such as EPS and PE. This device consists of a housing 3 with a driven screw 4 and a hopper 5 . In the upper part 8 of the shaft 1 , a line 6 with control valve 7 for supplying water is easily seen. The lower end 9 of the line 6 is designed such that a water curtain 10 is created which fills the entire inner cross section of the shaft 1 . In the upper part of the chess tes 1 , a line 11 is also provided for discharging the EPS particles. The line 11 can start from a trough 13 , which is filled through an opening 14 of the shaft 1 . In the lower part 15 of the shaft 1 , a line 16 with a control valve 17 is provided for discharging the PE particles. The flow of water within the shaft 1 is adjusted by adjusting the valves 7, 12 and 17 such that the water flowing downward carries the PE particles downward and that the water flowing upward takes the EPS particles upward.
Fig. 2 zeigt einen waagerechten Kanal 18, der in der oberen Kanalwand 19 eine Öffnung 20 zum Abfüh ren der EPS-Teilchen aufweist. An einem Ende 21 des Kanals 18 ist eine Einrichtung 22 zum Zuführen des zu trennenden Gemisches vorgesehen. Diese besteht aus einer Turbulenzkammer 23 mit Leitung 24 und Regelventil 25. Mit der Einrichtung 22 wird eine gleichmäßige Verteilung des Gemisches auf den Kanal 18 und außerdem eine gleichmäßige Strömung inner halb dieses Kanales sichergestellt. Die Leitung 24 kommt von einem Rührbehälter 25 mit Rührwerk 27, in dem EPS- und PE-Teilchen mit Wasser eingemischt werden. Über einen Stutzen 28 gelangt das Gemisch in die Leitung 24 und somit in die Turbulenzkammer 23. Die Gemischströmung innerhalb der Kammer 18 ist so eingestellt, daß die EPS-Teilchen aufschwim men und die PE-Teilchen in der Schwebe bleiben. Im Bereich der Öffnung 20 steigen die EPS-Teilchen in einen Steigschacht 29 und können dort über eine Öffnung 30 bzw. eine Leitung 31 abgeführt werden. Die PE-Teilchen werden im Kanal 18 weiter waagerecht geführt, bis sie das andere Ende 32 des Kanals 18 erreichen. Hier gelangen sie in einen Steigschacht 33, können ebenfalls aufschwimmen und über eine Leitung 34 abgeführt werden. Es läßt sich nicht ganz vermeiden, daß im Bereich der Öffnung 20 PE- Teilchen aufschwimmen. Um zu verhindern, daß diese PE-Teilchen in den Steigschacht 29 gelangen, ist ein überlagerter Kanal 35 vorgesehen, der von einer Kanalwand 36 gebildet und an eine Turbulenzkammer 37 mit Wasserleitung 38 und Regelventil 39 ange schlossen ist. Auch die Kammer 37 sorgt für eine gleichmäßige Verteilung und Strömung. Das im Kanal 35 strömende Wasser ist mit einer Strömung einge stellt, die die EPS-Teilchen nach oben aufschwimmen läßt und andererseits die PE-Teilchen im Kanal 18 waagerecht weiterführt. Somit ist sichergestellt, daß alle PE-Teilchen in den Steigschacht 33 gelangen. Fig. 2 shows a horizontal channel 18 having an opening 20 in the upper channel wall 19 for the removal of the EPS particles. A device 22 for supplying the mixture to be separated is provided at one end 21 of the channel 18 . This consists of a turbulence chamber 23 with line 24 and control valve 25 . The device 22 ensures a uniform distribution of the mixture on the channel 18 and also a uniform flow within this channel. The line 24 comes from a stirred tank 25 with an agitator 27 in which EPS and PE particles are mixed with water. The mixture reaches the line 24 and thus the turbulence chamber 23 via a nozzle 28 . The mixture flow within the chamber 18 is adjusted so that the EPS particles float and the PE particles remain in suspension. In the region of the opening 20 , the EPS particles rise into a riser 29 and can be discharged there via an opening 30 or a line 31 . The PE particles are guided horizontally in the channel 18 until they reach the other end 32 of the channel 18 . Here they reach a riser 33 , can also float up and can be discharged via a line 34 . It cannot be entirely avoided that 20 PE particles float in the area of the opening. To prevent these PE particles from entering the riser 29 , a superimposed channel 35 is provided which is formed by a channel wall 36 and is connected to a turbulence chamber 37 with a water line 38 and a control valve 39 . The chamber 37 also ensures a uniform distribution and flow. The water flowing in the channel 35 is set with a flow that allows the EPS particles to float upwards and on the other hand continues the PE particles horizontally in the channel 18 . This ensures that all PE particles get into the riser 33 .
Trennwalzen 40 sind zur Unterstützung der Förder ung der getrennten Kunststoff-Teilchen vorgesehen.Separating rollers 40 are provided to support the conveying of the separated plastic particles.
Beim Recycling von Kunststoff-Abfällen fallen Ab fälle an, bei denen die zu trennenden Teile ver schmutzt oder mit anderen Kunststoffen vermischt sind. So können PVC- und PET-Teile, aber auch Glas, Sand oder andere Fremdstoffe vorhanden sein. Diese müssen bei einem Trennverfahren ebenfalls abgeführt werden. Zu diesem Zweck ist in an sich bekannter Weise unterhalb des Steigschachtes 33 ein Abführ trichter 41 mit Ventil 42 vorgesehen. Aus konstruk tiven Gründen läßt sich unterhalb des Steigschach tes 29 ein Abführtrichter nicht unterbringen. Aus diesem Grunde ist im Anschluß an die Abführöffnung 30 für die EPS-Teilchen ein Behälterteil 43 mit Abführtrichter 44 und Ventil 45 vorgesehen. Sollten mit den EPS-Teilchen Teilchen mitgeführt werden, so können diese über den Trichter 44 abgeführt werden. Aus dem Trichter 41 können die schwereren Teile abgeführt werden.When plastic waste is recycled, there are wastes in which the parts to be separated are contaminated or mixed with other plastics. So PVC and PET parts, but also glass, sand or other foreign substances can be present. These must also be removed in a separation process. For this purpose, a discharge funnel 41 with valve 42 is provided in a known manner below the riser 33 . For constructive reasons, a discharge funnel cannot be accommodated below the riser shaft 29 . For this reason, a container part 43 with discharge funnel 44 and valve 45 is provided after the discharge opening 30 for the EPS particles. If particles are carried along with the EPS particles, they can be removed via the funnel 44 . The heavier parts can be removed from the funnel 41 .
Mit 46 sind Leitbleche zur Stabilisierung der Ström ungen bezeichnet.With 46 baffles for stabilizing the currents are designated.
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904030256 DE4030256A1 (en) | 1990-09-25 | 1990-09-25 | Disintegrated polyvinyl chloride plastics scrap sepn. - by sepg. polystyrene foam and polyethylene@ particles in tower with downward water current to move up=and=down |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904030256 DE4030256A1 (en) | 1990-09-25 | 1990-09-25 | Disintegrated polyvinyl chloride plastics scrap sepn. - by sepg. polystyrene foam and polyethylene@ particles in tower with downward water current to move up=and=down |
Publications (1)
Publication Number | Publication Date |
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DE4030256A1 true DE4030256A1 (en) | 1992-03-26 |
Family
ID=6414908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE19904030256 Withdrawn DE4030256A1 (en) | 1990-09-25 | 1990-09-25 | Disintegrated polyvinyl chloride plastics scrap sepn. - by sepg. polystyrene foam and polyethylene@ particles in tower with downward water current to move up=and=down |
Country Status (1)
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DE (1) | DE4030256A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993019850A1 (en) * | 1992-04-01 | 1993-10-14 | Sorema S.R.L. | Plant for the separation of various kinds of small sized materials |
DE102015009593A1 (en) * | 2015-07-24 | 2017-02-09 | Ulrich Winkler | Process and apparatus for the mechanical separation of Kunststoffmahlgutgemischen from the origin of municipal settlement u. Industrial waste and shredded light fractions from the source of used cars. An additional effect is the removal of superficial contaminants and no material degradation due to heat-controlled softening processes affecting the material. CO2 savings in a ratio of approx. 1: 1 by avoiding thermal recycling |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3717839A1 (en) * | 1986-05-28 | 1987-12-03 | Andritz Ag Maschf | METHOD FOR SEPARATING LIGHTWEIGHT MATERIALS, IN PARTICULAR PLASTIC PARTS, FROM SUBSTRATE MIXTURES, AND DEVICE FOR CARRYING OUT THE METHOD |
DE3800204A1 (en) * | 1988-01-07 | 1989-07-20 | Reiner Landreh | Method and apparatus for sorting plastic refuse |
-
1990
- 1990-09-25 DE DE19904030256 patent/DE4030256A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3717839A1 (en) * | 1986-05-28 | 1987-12-03 | Andritz Ag Maschf | METHOD FOR SEPARATING LIGHTWEIGHT MATERIALS, IN PARTICULAR PLASTIC PARTS, FROM SUBSTRATE MIXTURES, AND DEVICE FOR CARRYING OUT THE METHOD |
DE3800204A1 (en) * | 1988-01-07 | 1989-07-20 | Reiner Landreh | Method and apparatus for sorting plastic refuse |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993019850A1 (en) * | 1992-04-01 | 1993-10-14 | Sorema S.R.L. | Plant for the separation of various kinds of small sized materials |
DE102015009593A1 (en) * | 2015-07-24 | 2017-02-09 | Ulrich Winkler | Process and apparatus for the mechanical separation of Kunststoffmahlgutgemischen from the origin of municipal settlement u. Industrial waste and shredded light fractions from the source of used cars. An additional effect is the removal of superficial contaminants and no material degradation due to heat-controlled softening processes affecting the material. CO2 savings in a ratio of approx. 1: 1 by avoiding thermal recycling |
DE102015009593B4 (en) * | 2015-07-24 | 2021-05-20 | Ulrich Winkler | Device and method for the separation of plastic regrind according to the specific density |
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