CA2354254A1 - Method of sorting a plastic mixture out of a waste mixture and a waste sorting installation - Google Patents
Method of sorting a plastic mixture out of a waste mixture and a waste sorting installation Download PDFInfo
- Publication number
- CA2354254A1 CA2354254A1 CA 2354254 CA2354254A CA2354254A1 CA 2354254 A1 CA2354254 A1 CA 2354254A1 CA 2354254 CA2354254 CA 2354254 CA 2354254 A CA2354254 A CA 2354254A CA 2354254 A1 CA2354254 A1 CA 2354254A1
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- CA
- Canada
- Prior art keywords
- waste
- fraction
- sorting
- mixture
- plastic
- Prior art date
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- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/10—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects
- B07B13/11—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters
- B07B13/113—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters shaking tables
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- 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
- 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
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
- B29B17/0047—Compacting complete waste articles
-
- 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
-
- 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
- B29B2017/0268—Separation of metals
-
- 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
- B29B2017/0279—Optical identification, e.g. cameras or spectroscopy
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- 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
- 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
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- 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
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
-
- 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
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/02—Aluminium
-
- 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
- B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
- B29K2711/12—Paper, e.g. cardboard
-
- 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
- B29L2009/00—Layered products
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/20—Flexible squeeze tubes, e.g. for cosmetics
-
- 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
- B29L2031/7128—Bags, sacks, sachets
-
- 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
-
- 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
- B29L2031/7162—Boxes, cartons, cases
- B29L2031/7166—Cartons of the fruit juice or milk type, i.e. containers of polygonal cross sections formed by folding blanks into a tubular body with end-closing or contents-supporting elements, e.g. gable type containers
-
- 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)
- Processing Of Solid Wastes (AREA)
- Combined Means For Separation Of Solids (AREA)
- Sorting Of Articles (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a method of sorting out a plastic mixture from a waste mixture, where the technical problem of sorting out a plastic mixture consisting essentially of plastic objects with a low interfering substance content is solved by a method in which a waste fraction consisting at least of plastic objects and beverage cartons is sorted out of a waste mixture, whereby beverage cartons are sorted out from the waste mixture and whereby the plastic mixture is separated as the heavy traction from the waste fraction reduced of the beverage cartons by means of a ballistic separator.
The technical problem is also solved by the fact that in addition to or separately from the beverage cartons.
objects containing metal are separated from the waste fraction before the waste fraction is sent to the ballistic separator.
The technical problem is also solved by the fact that in addition to or separately from the beverage cartons.
objects containing metal are separated from the waste fraction before the waste fraction is sent to the ballistic separator.
Description
24. JUI, 2001 12; ~0 COIIAU~Z & f LORACK NR. 201 ~. 6/20 TH/c~ 0009Q3C,A
24. ~7l~ly 2001 Mh'1'HOD ._F SORTING A P7~ASTIC MIXTURE OUt OF A WASTE
',lhe invention relates t0 ~i lltCl.tlUt3 trt sorting a plastic mixture from a waste mi~aure and a ouitable sorting installation.
In Germany today, lightweight packaging is collected sQparatoly from other rlnmpr~tic waste, so that the materials in the lightweight packdglciq c;du be sent for recycling. Thio typo of waste separation is known as "dual systsm~ _ Tn sorting out thg 1 i e~hrr.rwi ghr. packaging waste, a wide variety of techniques iuu~ L k~c used to separate the matorialo from one another in order to obtain individual fractions of high purity. Thus, for example, there dre umLal separators that operate by a magnetic principle for ~epsrating magnetic metals, separatr~r~ for. other metals, air classifiers for SeparaLln~ Heavy fractions from lightweight fractions, screens in a wide variety of forms for separating pieces of c~iffwr.~nt sizes and also classifying zones where certain waste obj~c:~~ arcs sorted out manually.
In reryc:ling waste and lightweight packaging waste lti partieula,~~, it is of special interest to separate plastic itcm~ according to th0 typ~ of plastic, i.w., polyethylene (Y~). polypropylene (PP), polystyrene (PS) or polyethylene tarephthalatc (PET). In the sta~ta of th~
art, this is accomplished by m~anR ef an automatic sorting device wtitc;ti dal:ects different types of plastic xri/cs ooosaara' 2'4. JUL, 2001 12.71 COIIAU51 & fLORACK NR, 201 S. 7/20 by roans of infrared spectroscopy anrl ~~hiavea a high degree of purity of the indlvidudl plastic =ractions by controlled ocparation of the objects. Tho plastic objects are recognized by mans of c~pti r..s 1 dwi aeg, but they are separated with the help of cotnpre'~ed nix blasting devices, for ehample. Thug, individual plaotic fr3ctiona containing ~ssantially objects of. only nnw o~f i~he above-mentioned types of plastics can be Sepdrd~~sd tom such waste and from lightweight pcakaging waatc in particular.
In addition, s eo-called ballistic separator is known lrs the stato of the art, where it is uccd tv separate diffsrQnt types of materials in waste processinc~_ i4 ballistic separator consists of one or more irtyellrrr paddles which aro arrangod at an angle of inclination to the horizontal and are driven tn ~x~c:ute! a circular motion by means of a suit:dk~la dt~lve, where the plane of the circular motion is oriented in tho diroction of the longitudinal extent of a~r:h i.mpeeller paddle. A balliatiC
separator u5e5 ~tid ptiyslc;al differences in tho dynamic trajeotoric3 to ocparatc different materials, whore the differeenae in the ballistic behavior of materials of different sizes and weiQtitr~ r~sull.~ in their Y~aing aapx~rutcd into lightweight fraotionc and heavy fractions.
Therefore, a balliSl.,Lc s~aparator has the advantage in comparison with an air vlaasifi~r that not only th~
wwight of. the object to be separated but also its shape 15 usdc~ as a differentiating feature. If the impeller paddles aro also designed as screens and pe~rmst 8tparation into large objects and small objects, 11. i3 pvoe~iblo to aeparata a mixturA of materials according to the criteria .flat/ronnd, hPavy/lightweight and T8/c~ vuuy~~cx~
2'4, JUL, 2001 12: ~1 COIIAU~Z & f LORACK NR, 201 S, 0/20 largo/tmall by using 3 ballistic separator in on.
workszep.
D~spit~ the us~ of different sorting methods in the stet.
of the art described here, one problem encountered is Ltidl. Lr~vc~~.~age carl:ons also enter the plastic fractions because beverage cartons usually consist of a laminat~ of rardboarrd plus one type of plastic such as polyethylene (PE). Thus, beverage cartons are considered as interfering substances in the broader sense in the plaRtic: fraati.ona to be sorted out, because the paper c;olapon~snt r~sduees the purity og the resulting plastic fraction.
Other interfering materials include other composite materials, in particular laminates of metals such as aluminum and s plastic such as polyethylene (PE) Such as Ltivse c:onut~only presernt in a waata mixture . Examples includ~ toothpastw tubes and food containers.
Finally, another problem is that the compressed air blowing doviccs uswd in saxta.ng out individual plastic objects become soiled to a Qreat extent due to vaporization of liquid or viscous materials such a3 food r~sidues which adh~rr~ to the plastic objects.
The invention io based oa the technicml problem of designing and improving upm thw mwthod And the waste sorting inatallativn s~ Ltial d. ple~s~'ic: mixture consisting coacnti311y of pl3otio obj acts v~rith autstll amounts of i.ntarfari ng matwri a 1 ~ c:an be sorted out.
The toahnical problem described above is solved accarding to the invention by a method of sorting a plastic mix'tui~~
~Ici oen44~cp 24. JUI. 2001 12: ~1 COIIAUSZ & f LORACK NR. 201 S. 9/20 _ ~
nut of a waste mixturQ in a waste sorting installation according to claim 1, where a waste fraction containing at leant plastic objects and beverago cartons is sorted out from a wastQ mixture, the beverage tartans being sorted out from the waste traction and the plastic mixture being separated as a heavy fract3.on from the waste fraction from which the beverage oartons hav~ brown eliminated with the help of a ballistic a~par~sr.or.
It is thus recogni2od according to thw invention that the proportional amount of interfering materials in the form of beverage cartons can be greatly reduced by the combined use of a sorting installation for the beverage cartons plus a ballistic separator. The beverage cartons are sorted out of the waste mixture in the sorting installztion in particular with the help of optical methods and compressed air-operated discharge devices, and the resulting waste mixture can than be sent for recycling. For example, infrared light nay be appliod onto the waste objects and the spectra thus reflected are recorded. The spectra thus recorded are characteristic of each type of glaatic as woll as composit~ materials consisting of a type of plastio and paper and are used as diotinguivhing criteria.
The waste iraetion sent to the ballistic separator is then oeparated by moans of impollor paddlca into a li.ghi-.wai ght frar._ti on containing plastic objects as well as additional int~srtdriuy ~uaL~ridla amci d tiedvy fr~sction oontaiaing the plastic obj~cts to ba sorted out. The lightweight traction also contains lightweight plastic objcots 8uoh as films or foams.
Tamp ooo9a3ca 24. JUL, 2001 12:1 COIIAUSZ & fLORACK NR, 201 ~. 10/20 ~~~
A ballistic separator cannot ocparate beverage cartons definitively, and thus the heavy fret-__ti on Wnt~1 d still have a Considorablcs bevorage carton conteszt, so l.~r~
advantage of the invention consists at loasst of the feat that the beverage cartons are snrtc~ci out before the waste mixture reaches the ballistic separator. The heavy fraction separated by tho balliotia 3cparator thus rcpre~Rwnra a waste txaction that has bean essentially fr~e~l at bevera.ye c;ar~ou5 dttd the interfering materials in the lightwwight fraction.
ACCOrdiIIGJ t0 8t1~7L~1liZ' preLerred embodiment of the present invention ao aharaatcrized in olaim 4, which is essentially indepPndant of they u~R n.f. a sorting installation for beverage cartVlzs atxd ttds du independent inventive character, wasto ob~ccta containing metal are sorted out before the waste traat~.~n is SRnt to thA
ball.L~llc ~e,~arator. In particular, waste ob~eCts consisting of composite matorialo containing at least some metal such as aluminum are sorted out hPree. Tn this way, the interfering incat,~ildls described above such as toothpaste tubas and food packaging whioh are not deginitively separated into the lightweight frartion by the ballistic separator are romoved from the wds~~ s~reatn beforQ it is sent to the ballistic separator. The sorting installation separates magnetic metals by means of permanent magnetic fields and nonmagnetic mortals by means of alternating magnetic fields in a known manner.
In the teat of ra combination of the sorting iszatallation fnr havr~rac~a cartons with a sorting installation for Wa3t~s Ob~esCt~ CVlil.dlttJ.tlg tc~e~al, a waste mixture will pass through both installc~tiont; before being sent to a ballistic separator. Thus, the two advantaQeeuq e~ffacta sss/ai oooo~3ca 24. JUL. 2001 12: ~1 COIIAU~Z & f LORACK ~ NR. 201 S. 11/20 ar~ combined to achiwo a considorablo reduction in the interfering materials present in the plastic fraction.
The seguenco is not predetermined in principle, but an arrang~ament of thQ sorting installation for metal upstream from the sorting installation for beverage cartons is preferred.
In addition, it is preferable for zhe lighrwwighr.
Fraction that is sorted out by means of the ballis~lc;
separator to be sent for further utilization, wh~re the various interfering materials which are suitable t~or recycling or reprocessing despite their property of being eomposito matorials can be separated at least in part.
According to another teaching of the present invention, a small fraction is s~parat~d out of tho waste mixture with the help of the ballistic separator. '1'o do so, th~
minimum of one impeller paddle has a perforation whlc;lZ
results in extwnsivo acreenirrg of the wastes fraotion supplied to it. In particular, liquid or viscous substances such as food residues adhoring to the waste items are effectivoly sortod out dug to the strong movement of the impeller paddle while the heavy and lightweight fractions are being sorted out. Therefore, thare~ i !~ mor_h 1 ess soilinr~ of the further sorting equipment, which operates with discharge devices that use comprossod air, for sorting out individual plastic screening process is much bottc~r h~re than with the ru~ary drum screens used in the past.
In addition. individual plastic fractions c:an hw saorta~l out of the plastic mi~aure with the help of soparate sorting equipment after passing through tho ballistic separator. In particular, plastic fractions consist~.ng Ttt/~-i nno4aar~
2'4, JUL. 2001 12: ~2 COIIAU~Z & ~LORACK NR, 201 S. 12/20 ca3entislly of objects made of polyethyle~nc~ (PL), pnlyprc~pylene (PP), polystyrene (PST or polyethylene terd~aWhalate fPET) can be sorted out herw_ Thw imvantion is described below on the basis of a plastic fraction consisting of lightweight packaging obtained from the dual ayatem of waste sc~pardl.ion such as that in use in G~rmany today. However, thin is not to be understood as restrictive in any way because it is ai.so po~~iblo in principle to perform this waste sorting ou a mixture consisting of both dom~stio waste and lightweight packag~.ng as well as other types of waste.
The technical problem de9crib~d above is also aolvod by is waste sorting installation having the features of claim H
or claim l0 as explained in greater detail Le~lvw.
Refwrwnra is made to the aoeompanying drawingc, which show:
fig. 1: ~ block diagram to illustrate the ssqusnc~ of the process for sorting a plastic mixture out of a w~otc mixture in a waste sorting instal.).ation according to a first embodiment of lrid pt~ebent invention.
Fig. 2: a hloGk diagram to illustrate the s~qu~nao of the process for sorting a plastic mixture out of a waste mixture in a waste sorting installation ~nc:ordi.ng to a second smbodimeat o~ the present itz'v'enLioix, Fiq. 3: a block diagram according to r~iq. 1 and z with a combination of the two embodiments ur l.kie~
method according to the invention, and TSIO~ 000913CJ1 2'4. JUL. 2001 12:2 COIIAUSZ & fLORACK NR. 201 S. 19/20 fig. 4: a schPmr~tir diagram of part of a ballistic separator.
FiQ. 1 shows in the form of a block diagram the sequonae of the tt~s~t~ad according to the invention for sorting a plastio mixturQ out of a waste mixture in a waste sorting installar.i~n according to a first embodiment. In a block diagram, ds well as in the block diagrams in ~'ig. 2 and 3, various eonveyanao means are represented with arrows, indicating the Conveyance of the waste mixture or parts thereof b~~weeu different sorting installations.
l~lccording to Fig. 1, s waste mixture is conveyed With a conveyance means 2 ~a a plurality of diffetertt sorting installations which are labeled on the whole with reverence number 4. A p1»ral.ity of different waste fractions arcs sCparated from the waste mixture, as indie~ted with arrows 6, with the help of screening stages, air classifiers, vihrs~tinc~ chutes and magn~tic installations. A~ d result of this sorting, a waste fraction containing pla~tia objects and beverage cartons that have been treed ~t l.Rast in part of other interfering materials is ok~lai~~ed and i5 sent with conveyance means 8 to a sorting installation 10 Which separates beverage cartnnR out of this waste fraction.
This is accomplished, for exampld, key optical methods with which composite materi3lo oonai3ting of paper plus a type of plastic are detected and sorted ~t~t of the waste fraction. The beverage cartons that are sorCesd ~ul. are sent by coav~yance means 11 for further sorting and/or .c~r~cycling, while the waste traction from which most of the beverage cartons have been removed is sent with the help og conveyance means 1z to a hal.ir~~:i~ sAparator 14.
:H~c~ oaos~~cr, 2'4. JUL. 2001 12:72 COIIAUSZ & fLORACK NR. 201 ~. 14/20 _ g _ As ~~plain~d b~low with rospact to Fig. 4, tho ballistic separator 14 permits separation ~f r.hca waste traction supplied to it into a heavy fraction, a l3yhtweiqht fraction and a small fraction. Th~ hQavy fraction, which may also be referred to as a plastic tni xtt~xe~, contains essentially plastic objects that axd aelit by means of convcyanca moanr 16 for further oortiag into plastic fractions, each eonsistinQ of once typo n.f plastic. The lightweight fraction which has b~cesll sepdrafed by the ballistic separator 14 aontaina essentially lightweight and/or fiat objects such as paper, films, parts of domestic waste, fabx.Lc;~ disci ~l:her mat~rials Lhat could not b~ sorted out by the porting installations ~ and 10 through which the frac~Cion has prpvinu~ly passed. The lightweight fraction is SemL key way of conveyance means 18 for further proc~ssing. Zt is also poesiblc to separate a small fraction by using a a~re2n having perforations of a defined size with a LdlliS~ic separator 14. The small fraction is then s~nt for furthQr processing by means of conveyance means 2U.
Fig. 2 shows anothor wmbodim~at of a wasto sorting inbtaliation according to the invention, where th~ same refQroncc numbers stand for the same components as those describ~d alrmady on thQ ba:is of Fig. 1.
In the embodiment illustrated in Fig. 2, the waatas mixture is sRnt by means of the convlyancQ means 8 to a sorting installation 22 Iur sc~pa~rdtinq ob~scts containing metal after having passed through the variouo porting installations 4. In this installation, magnpt~.a or nonmagnetic metals are r~sumv~sd tiara the waste fraction by means of permanent magnetic fields or alternating 1!s/O) 000993c:n 24, JUI. 2001 12: ~2 COIIAUSZ & f LORACK NR. 201 S, 15/20 -- to _ magn~~lc; rlelds. In particular, this makes it possible to snort out aompoeite mmtorials containing aluminum such as thosR u!twc~ fnr toothpaste tubas and food packaging. Th~
objects acrl.ed out are then sent by conveyance means 23 for further procoa~ing.
T~id was~d rrac;tion freed of objects contai.riinQ metal is then 3cnt by conveyance means 24 to ballistic separator 1.4 whir_.h farther divides it into a heavy fraction, i.e., the pld~~ic; mixture, a lightweight fraction arid a stall.
fraction in the manner described above.
Fig. 3 shows a combination of the two process sequences described above, where the name reference numbers are used to idPnti.fy fihw samA components as thosQ already described with reference to dig. 1 and 2.
Tn the embodiment illustrst~d in Fig. 3, the waatv traction is first sent to the sorting installation 22, whore objects containing metal are sorted out. The waste traction thug prnc~essed is sent by conveyance mans 24 to sorting insta~llaliou 10 for sorting out the beverage cartons. The waote fraction, which has thus been largely freed of bevpr~rgw c:~rtons, is then sent by cony~yance means 12 to the bd.11151.1c; separator 14 which performs further processing of the waste fraction in the manner described above.
Fig. 4 illustrates tho funvtioning of the balliotic SepEtratOr as iz is known from the srat-.R of thA art. and as used according to the invention for sorting out g plasCic:
mixture from a waste fraction_ :xiej ooo94acA
2~4. JUL. 2001 12; ~~ COIIAU~Z & f LORACK Nit. 201 S. 16/20 Tha ballistxa roparator, which is labolod ao 14 on the whole, has one or mor~ impeller paddles 1E3 which arcs arranged at an angle aG to Zhe h~ri~~nr.a1 and have: an upper ~~dppda yr graduated surface 30. A graduation in the surface is not necessary but it doe3 Support the dw~irwrl separation effect. The waste fraction to be sdpt~raLed i~ fed onto the impeller paddle 28 ,from above, while at the same time the impeller paddle is driven by drivw~ 3~ and 34 to execute a circular motion.
During the upward movement, the waste objects strike the inalinPd Rwc~.tic~n~ of the surface 30. In the prooass, the round and/or heavy objects are accelerated to such an oxtcnt that they are accelerated upwnrd arid to the left in Fig. 4_ Thw resulting parabolas executed by these ~biecta are indicated by the arrows 36. Thus, these waste objects from the wnotc traction are advanced innrwmantally in the direction of the lower left end, so ~~~.a~ ~t~~y are separated as a heavy traction and thus as a plastic mixturo by balliotic separator 14. =r: particular they compact, i.e., round and/or heavy objects arw the wastes obj~c;l.s LtidL are of interest for Lhe plastic mixture. The heavy fraction thus contains mainly plastic objects which are suhswq»wntly SRnr far further sorting into individual plastic fxac;ltous. Ttm coal is tv obtain individual plastic fraation3 of the greatest possible purity.
Flat at~.d/or lightwQight waste objBeta, hOwCVCr, a~ro lifted only slightly in the upward nnovemconr_ of thw impeller paddle 2Q, ao that they are transported inc:re~mantally toward the upFer right end in Fig_ 4 during the further recurring circular movements. This is aaaompliohod by the fact that they are accelerated in the rx~.~ oooolx~
Z4. JUL. 2001 12; 7~ . COIIAUSZ & f LORACK NR. 201 S. 17/20 dir~ction of the upper end of the imgellcr paddle 28 during the upper section of the circular move~m~nt ~nci ar.Q
lifted only slightly up from surface 30 in the subsdea,udrW
downward movotnont. During the remaining circular movement, the imp~ller piddle 1s moves fnrth~r to tha left in Fig. 4, w Chat ttie soft obiects are conveyed incrementally to the right in Fig. 4 and are finally qep~rar.wc~ a~ ~ 1 i ghtweight traction by ballistic sesparaLvr 14.
rx/.i oooa~sc~.
24. ~7l~ly 2001 Mh'1'HOD ._F SORTING A P7~ASTIC MIXTURE OUt OF A WASTE
',lhe invention relates t0 ~i lltCl.tlUt3 trt sorting a plastic mixture from a waste mi~aure and a ouitable sorting installation.
In Germany today, lightweight packaging is collected sQparatoly from other rlnmpr~tic waste, so that the materials in the lightweight packdglciq c;du be sent for recycling. Thio typo of waste separation is known as "dual systsm~ _ Tn sorting out thg 1 i e~hrr.rwi ghr. packaging waste, a wide variety of techniques iuu~ L k~c used to separate the matorialo from one another in order to obtain individual fractions of high purity. Thus, for example, there dre umLal separators that operate by a magnetic principle for ~epsrating magnetic metals, separatr~r~ for. other metals, air classifiers for SeparaLln~ Heavy fractions from lightweight fractions, screens in a wide variety of forms for separating pieces of c~iffwr.~nt sizes and also classifying zones where certain waste obj~c:~~ arcs sorted out manually.
In reryc:ling waste and lightweight packaging waste lti partieula,~~, it is of special interest to separate plastic itcm~ according to th0 typ~ of plastic, i.w., polyethylene (Y~). polypropylene (PP), polystyrene (PS) or polyethylene tarephthalatc (PET). In the sta~ta of th~
art, this is accomplished by m~anR ef an automatic sorting device wtitc;ti dal:ects different types of plastic xri/cs ooosaara' 2'4. JUL, 2001 12.71 COIIAU51 & fLORACK NR, 201 S. 7/20 by roans of infrared spectroscopy anrl ~~hiavea a high degree of purity of the indlvidudl plastic =ractions by controlled ocparation of the objects. Tho plastic objects are recognized by mans of c~pti r..s 1 dwi aeg, but they are separated with the help of cotnpre'~ed nix blasting devices, for ehample. Thug, individual plaotic fr3ctiona containing ~ssantially objects of. only nnw o~f i~he above-mentioned types of plastics can be Sepdrd~~sd tom such waste and from lightweight pcakaging waatc in particular.
In addition, s eo-called ballistic separator is known lrs the stato of the art, where it is uccd tv separate diffsrQnt types of materials in waste processinc~_ i4 ballistic separator consists of one or more irtyellrrr paddles which aro arrangod at an angle of inclination to the horizontal and are driven tn ~x~c:ute! a circular motion by means of a suit:dk~la dt~lve, where the plane of the circular motion is oriented in tho diroction of the longitudinal extent of a~r:h i.mpeeller paddle. A balliatiC
separator u5e5 ~tid ptiyslc;al differences in tho dynamic trajeotoric3 to ocparatc different materials, whore the differeenae in the ballistic behavior of materials of different sizes and weiQtitr~ r~sull.~ in their Y~aing aapx~rutcd into lightweight fraotionc and heavy fractions.
Therefore, a balliSl.,Lc s~aparator has the advantage in comparison with an air vlaasifi~r that not only th~
wwight of. the object to be separated but also its shape 15 usdc~ as a differentiating feature. If the impeller paddles aro also designed as screens and pe~rmst 8tparation into large objects and small objects, 11. i3 pvoe~iblo to aeparata a mixturA of materials according to the criteria .flat/ronnd, hPavy/lightweight and T8/c~ vuuy~~cx~
2'4, JUL, 2001 12: ~1 COIIAU~Z & f LORACK NR, 201 S, 0/20 largo/tmall by using 3 ballistic separator in on.
workszep.
D~spit~ the us~ of different sorting methods in the stet.
of the art described here, one problem encountered is Ltidl. Lr~vc~~.~age carl:ons also enter the plastic fractions because beverage cartons usually consist of a laminat~ of rardboarrd plus one type of plastic such as polyethylene (PE). Thus, beverage cartons are considered as interfering substances in the broader sense in the plaRtic: fraati.ona to be sorted out, because the paper c;olapon~snt r~sduees the purity og the resulting plastic fraction.
Other interfering materials include other composite materials, in particular laminates of metals such as aluminum and s plastic such as polyethylene (PE) Such as Ltivse c:onut~only presernt in a waata mixture . Examples includ~ toothpastw tubes and food containers.
Finally, another problem is that the compressed air blowing doviccs uswd in saxta.ng out individual plastic objects become soiled to a Qreat extent due to vaporization of liquid or viscous materials such a3 food r~sidues which adh~rr~ to the plastic objects.
The invention io based oa the technicml problem of designing and improving upm thw mwthod And the waste sorting inatallativn s~ Ltial d. ple~s~'ic: mixture consisting coacnti311y of pl3otio obj acts v~rith autstll amounts of i.ntarfari ng matwri a 1 ~ c:an be sorted out.
The toahnical problem described above is solved accarding to the invention by a method of sorting a plastic mix'tui~~
~Ici oen44~cp 24. JUI. 2001 12: ~1 COIIAUSZ & f LORACK NR. 201 S. 9/20 _ ~
nut of a waste mixturQ in a waste sorting installation according to claim 1, where a waste fraction containing at leant plastic objects and beverago cartons is sorted out from a wastQ mixture, the beverage tartans being sorted out from the waste traction and the plastic mixture being separated as a heavy fract3.on from the waste fraction from which the beverage oartons hav~ brown eliminated with the help of a ballistic a~par~sr.or.
It is thus recogni2od according to thw invention that the proportional amount of interfering materials in the form of beverage cartons can be greatly reduced by the combined use of a sorting installation for the beverage cartons plus a ballistic separator. The beverage cartons are sorted out of the waste mixture in the sorting installztion in particular with the help of optical methods and compressed air-operated discharge devices, and the resulting waste mixture can than be sent for recycling. For example, infrared light nay be appliod onto the waste objects and the spectra thus reflected are recorded. The spectra thus recorded are characteristic of each type of glaatic as woll as composit~ materials consisting of a type of plastio and paper and are used as diotinguivhing criteria.
The waste iraetion sent to the ballistic separator is then oeparated by moans of impollor paddlca into a li.ghi-.wai ght frar._ti on containing plastic objects as well as additional int~srtdriuy ~uaL~ridla amci d tiedvy fr~sction oontaiaing the plastic obj~cts to ba sorted out. The lightweight traction also contains lightweight plastic objcots 8uoh as films or foams.
Tamp ooo9a3ca 24. JUL, 2001 12:1 COIIAUSZ & fLORACK NR, 201 ~. 10/20 ~~~
A ballistic separator cannot ocparate beverage cartons definitively, and thus the heavy fret-__ti on Wnt~1 d still have a Considorablcs bevorage carton conteszt, so l.~r~
advantage of the invention consists at loasst of the feat that the beverage cartons are snrtc~ci out before the waste mixture reaches the ballistic separator. The heavy fraction separated by tho balliotia 3cparator thus rcpre~Rwnra a waste txaction that has bean essentially fr~e~l at bevera.ye c;ar~ou5 dttd the interfering materials in the lightwwight fraction.
ACCOrdiIIGJ t0 8t1~7L~1liZ' preLerred embodiment of the present invention ao aharaatcrized in olaim 4, which is essentially indepPndant of they u~R n.f. a sorting installation for beverage cartVlzs atxd ttds du independent inventive character, wasto ob~ccta containing metal are sorted out before the waste traat~.~n is SRnt to thA
ball.L~llc ~e,~arator. In particular, waste ob~eCts consisting of composite matorialo containing at least some metal such as aluminum are sorted out hPree. Tn this way, the interfering incat,~ildls described above such as toothpaste tubas and food packaging whioh are not deginitively separated into the lightweight frartion by the ballistic separator are romoved from the wds~~ s~reatn beforQ it is sent to the ballistic separator. The sorting installation separates magnetic metals by means of permanent magnetic fields and nonmagnetic mortals by means of alternating magnetic fields in a known manner.
In the teat of ra combination of the sorting iszatallation fnr havr~rac~a cartons with a sorting installation for Wa3t~s Ob~esCt~ CVlil.dlttJ.tlg tc~e~al, a waste mixture will pass through both installc~tiont; before being sent to a ballistic separator. Thus, the two advantaQeeuq e~ffacta sss/ai oooo~3ca 24. JUL. 2001 12: ~1 COIIAU~Z & f LORACK ~ NR. 201 S. 11/20 ar~ combined to achiwo a considorablo reduction in the interfering materials present in the plastic fraction.
The seguenco is not predetermined in principle, but an arrang~ament of thQ sorting installation for metal upstream from the sorting installation for beverage cartons is preferred.
In addition, it is preferable for zhe lighrwwighr.
Fraction that is sorted out by means of the ballis~lc;
separator to be sent for further utilization, wh~re the various interfering materials which are suitable t~or recycling or reprocessing despite their property of being eomposito matorials can be separated at least in part.
According to another teaching of the present invention, a small fraction is s~parat~d out of tho waste mixture with the help of the ballistic separator. '1'o do so, th~
minimum of one impeller paddle has a perforation whlc;lZ
results in extwnsivo acreenirrg of the wastes fraotion supplied to it. In particular, liquid or viscous substances such as food residues adhoring to the waste items are effectivoly sortod out dug to the strong movement of the impeller paddle while the heavy and lightweight fractions are being sorted out. Therefore, thare~ i !~ mor_h 1 ess soilinr~ of the further sorting equipment, which operates with discharge devices that use comprossod air, for sorting out individual plastic screening process is much bottc~r h~re than with the ru~ary drum screens used in the past.
In addition. individual plastic fractions c:an hw saorta~l out of the plastic mi~aure with the help of soparate sorting equipment after passing through tho ballistic separator. In particular, plastic fractions consist~.ng Ttt/~-i nno4aar~
2'4, JUL. 2001 12: ~2 COIIAU~Z & ~LORACK NR, 201 S. 12/20 ca3entislly of objects made of polyethyle~nc~ (PL), pnlyprc~pylene (PP), polystyrene (PST or polyethylene terd~aWhalate fPET) can be sorted out herw_ Thw imvantion is described below on the basis of a plastic fraction consisting of lightweight packaging obtained from the dual ayatem of waste sc~pardl.ion such as that in use in G~rmany today. However, thin is not to be understood as restrictive in any way because it is ai.so po~~iblo in principle to perform this waste sorting ou a mixture consisting of both dom~stio waste and lightweight packag~.ng as well as other types of waste.
The technical problem de9crib~d above is also aolvod by is waste sorting installation having the features of claim H
or claim l0 as explained in greater detail Le~lvw.
Refwrwnra is made to the aoeompanying drawingc, which show:
fig. 1: ~ block diagram to illustrate the ssqusnc~ of the process for sorting a plastic mixture out of a w~otc mixture in a waste sorting instal.).ation according to a first embodiment of lrid pt~ebent invention.
Fig. 2: a hloGk diagram to illustrate the s~qu~nao of the process for sorting a plastic mixture out of a waste mixture in a waste sorting installation ~nc:ordi.ng to a second smbodimeat o~ the present itz'v'enLioix, Fiq. 3: a block diagram according to r~iq. 1 and z with a combination of the two embodiments ur l.kie~
method according to the invention, and TSIO~ 000913CJ1 2'4. JUL. 2001 12:2 COIIAUSZ & fLORACK NR. 201 S. 19/20 fig. 4: a schPmr~tir diagram of part of a ballistic separator.
FiQ. 1 shows in the form of a block diagram the sequonae of the tt~s~t~ad according to the invention for sorting a plastio mixturQ out of a waste mixture in a waste sorting installar.i~n according to a first embodiment. In a block diagram, ds well as in the block diagrams in ~'ig. 2 and 3, various eonveyanao means are represented with arrows, indicating the Conveyance of the waste mixture or parts thereof b~~weeu different sorting installations.
l~lccording to Fig. 1, s waste mixture is conveyed With a conveyance means 2 ~a a plurality of diffetertt sorting installations which are labeled on the whole with reverence number 4. A p1»ral.ity of different waste fractions arcs sCparated from the waste mixture, as indie~ted with arrows 6, with the help of screening stages, air classifiers, vihrs~tinc~ chutes and magn~tic installations. A~ d result of this sorting, a waste fraction containing pla~tia objects and beverage cartons that have been treed ~t l.Rast in part of other interfering materials is ok~lai~~ed and i5 sent with conveyance means 8 to a sorting installation 10 Which separates beverage cartnnR out of this waste fraction.
This is accomplished, for exampld, key optical methods with which composite materi3lo oonai3ting of paper plus a type of plastic are detected and sorted ~t~t of the waste fraction. The beverage cartons that are sorCesd ~ul. are sent by coav~yance means 11 for further sorting and/or .c~r~cycling, while the waste traction from which most of the beverage cartons have been removed is sent with the help og conveyance means 1z to a hal.ir~~:i~ sAparator 14.
:H~c~ oaos~~cr, 2'4. JUL. 2001 12:72 COIIAUSZ & fLORACK NR. 201 ~. 14/20 _ g _ As ~~plain~d b~low with rospact to Fig. 4, tho ballistic separator 14 permits separation ~f r.hca waste traction supplied to it into a heavy fraction, a l3yhtweiqht fraction and a small fraction. Th~ hQavy fraction, which may also be referred to as a plastic tni xtt~xe~, contains essentially plastic objects that axd aelit by means of convcyanca moanr 16 for further oortiag into plastic fractions, each eonsistinQ of once typo n.f plastic. The lightweight fraction which has b~cesll sepdrafed by the ballistic separator 14 aontaina essentially lightweight and/or fiat objects such as paper, films, parts of domestic waste, fabx.Lc;~ disci ~l:her mat~rials Lhat could not b~ sorted out by the porting installations ~ and 10 through which the frac~Cion has prpvinu~ly passed. The lightweight fraction is SemL key way of conveyance means 18 for further proc~ssing. Zt is also poesiblc to separate a small fraction by using a a~re2n having perforations of a defined size with a LdlliS~ic separator 14. The small fraction is then s~nt for furthQr processing by means of conveyance means 2U.
Fig. 2 shows anothor wmbodim~at of a wasto sorting inbtaliation according to the invention, where th~ same refQroncc numbers stand for the same components as those describ~d alrmady on thQ ba:is of Fig. 1.
In the embodiment illustrated in Fig. 2, the waatas mixture is sRnt by means of the convlyancQ means 8 to a sorting installation 22 Iur sc~pa~rdtinq ob~scts containing metal after having passed through the variouo porting installations 4. In this installation, magnpt~.a or nonmagnetic metals are r~sumv~sd tiara the waste fraction by means of permanent magnetic fields or alternating 1!s/O) 000993c:n 24, JUI. 2001 12: ~2 COIIAUSZ & f LORACK NR. 201 S, 15/20 -- to _ magn~~lc; rlelds. In particular, this makes it possible to snort out aompoeite mmtorials containing aluminum such as thosR u!twc~ fnr toothpaste tubas and food packaging. Th~
objects acrl.ed out are then sent by conveyance means 23 for further procoa~ing.
T~id was~d rrac;tion freed of objects contai.riinQ metal is then 3cnt by conveyance means 24 to ballistic separator 1.4 whir_.h farther divides it into a heavy fraction, i.e., the pld~~ic; mixture, a lightweight fraction arid a stall.
fraction in the manner described above.
Fig. 3 shows a combination of the two process sequences described above, where the name reference numbers are used to idPnti.fy fihw samA components as thosQ already described with reference to dig. 1 and 2.
Tn the embodiment illustrst~d in Fig. 3, the waatv traction is first sent to the sorting installation 22, whore objects containing metal are sorted out. The waste traction thug prnc~essed is sent by conveyance mans 24 to sorting insta~llaliou 10 for sorting out the beverage cartons. The waote fraction, which has thus been largely freed of bevpr~rgw c:~rtons, is then sent by cony~yance means 12 to the bd.11151.1c; separator 14 which performs further processing of the waste fraction in the manner described above.
Fig. 4 illustrates tho funvtioning of the balliotic SepEtratOr as iz is known from the srat-.R of thA art. and as used according to the invention for sorting out g plasCic:
mixture from a waste fraction_ :xiej ooo94acA
2~4. JUL. 2001 12; ~~ COIIAU~Z & f LORACK Nit. 201 S. 16/20 Tha ballistxa roparator, which is labolod ao 14 on the whole, has one or mor~ impeller paddles 1E3 which arcs arranged at an angle aG to Zhe h~ri~~nr.a1 and have: an upper ~~dppda yr graduated surface 30. A graduation in the surface is not necessary but it doe3 Support the dw~irwrl separation effect. The waste fraction to be sdpt~raLed i~ fed onto the impeller paddle 28 ,from above, while at the same time the impeller paddle is driven by drivw~ 3~ and 34 to execute a circular motion.
During the upward movement, the waste objects strike the inalinPd Rwc~.tic~n~ of the surface 30. In the prooass, the round and/or heavy objects are accelerated to such an oxtcnt that they are accelerated upwnrd arid to the left in Fig. 4_ Thw resulting parabolas executed by these ~biecta are indicated by the arrows 36. Thus, these waste objects from the wnotc traction are advanced innrwmantally in the direction of the lower left end, so ~~~.a~ ~t~~y are separated as a heavy traction and thus as a plastic mixturo by balliotic separator 14. =r: particular they compact, i.e., round and/or heavy objects arw the wastes obj~c;l.s LtidL are of interest for Lhe plastic mixture. The heavy fraction thus contains mainly plastic objects which are suhswq»wntly SRnr far further sorting into individual plastic fxac;ltous. Ttm coal is tv obtain individual plastic fraation3 of the greatest possible purity.
Flat at~.d/or lightwQight waste objBeta, hOwCVCr, a~ro lifted only slightly in the upward nnovemconr_ of thw impeller paddle 2Q, ao that they are transported inc:re~mantally toward the upFer right end in Fig_ 4 during the further recurring circular movements. This is aaaompliohod by the fact that they are accelerated in the rx~.~ oooolx~
Z4. JUL. 2001 12; 7~ . COIIAUSZ & f LORACK NR. 201 S. 17/20 dir~ction of the upper end of the imgellcr paddle 28 during the upper section of the circular move~m~nt ~nci ar.Q
lifted only slightly up from surface 30 in the subsdea,udrW
downward movotnont. During the remaining circular movement, the imp~ller piddle 1s moves fnrth~r to tha left in Fig. 4, w Chat ttie soft obiects are conveyed incrementally to the right in Fig. 4 and are finally qep~rar.wc~ a~ ~ 1 i ghtweight traction by ballistic sesparaLvr 14.
rx/.i oooa~sc~.
Claims (11)
1. A method of sorting out a plastic mixture from a waste mixture in a wastes sorting installation, - whereby a waste fraction containing at least plastic objects and beverage cartons is sorted out from a waste mixture, - whereby beverage cartons are sorted out from the waste fraction and - whereby the plastic mixture is separated as a heavy fraction with the help of a ballistic separator from the waste fraction reduced of the beverage cartons.
2. The method according to Claim 1, whereby the beverage cartons are sorted out from the waste mixture with the help of optical methods.
3. The method according to claim 1 or 2, whereby the beverage cartons thus sorted out are sent for further utilization.
4. The method of sorting out a plastic mixture from a waste mixture in a waste sorting installation, in particular according to one of claims 1 to 3, - whereby a waste fraction consisting at least of plastic objects and waste objects containing metal is sorted out of a waste mixture, - whereby waste objects containing metal are sorted out, and - whereby the plastic mixture is separated as a heavy fraction from the waste traction reduced of the beverage cartons with the help of a ballistic separator.
5. The method according to claim 4, whereby waste objects consisting of composite materials with at least some metal, in particular aluminum, are sorted out.
6. The method according to one of claims 1 to 5, whereby the lightweight fraction sorted out by means of the ballistic separator is sent for further use.
7. The method according to one of claims 1 to 6, whereby a small fraction is sorted out of the waste mixture with the help of the ballistic separator.
8. The waste sorting installation - having at least one sorting unit (10) which sorts beverage cartons out of a waste fraction consisting at least of plastic objects and beverage cartons, - having conveyance means (12) for conveying the waste fraction reduced of the beverage cartons and - having a ballistic separator (14) for separating plastic objects as the heavy fraction out of the waster fraction.
9. The waste sorting installation according to claim 8, characterized in that the sorting installation (10) -~-has optical means for detecting beverage cartons and discharge means for sorting out the beverage cartons.
10. The waste sorting installation, in particular according to claim 8 or 9, - having at least one sorting unit (22) which sorts out waste objects containing metal from a waste fraction consisting at least of plastic objects and waste objects containing metal.
- having conveyance means (24) for conveying the waste fraction reduced of the beverage cartons and - having a ballistic separator (14) for separating plastic objects as the heavy fraction from the waste fraction.
- having conveyance means (24) for conveying the waste fraction reduced of the beverage cartons and - having a ballistic separator (14) for separating plastic objects as the heavy fraction from the waste fraction.
11. The waste sorting installation according to claimed 8, 9 or 10, characterized in that the ballistic separator (14) has impeller paddles (28) with a perforation for sorting out a small fraction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00120091.4 | 2000-09-15 | ||
| EP20000120091 EP1188491B1 (en) | 2000-09-15 | 2000-09-15 | Process for sorting a plastics mixture out of a waste mixture and waste sorting installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2354254A1 true CA2354254A1 (en) | 2002-03-15 |
Family
ID=8169843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2354254 Abandoned CA2354254A1 (en) | 2000-09-15 | 2001-07-27 | Method of sorting a plastic mixture out of a waste mixture and a waste sorting installation |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1188491B1 (en) |
| JP (1) | JP2002159920A (en) |
| CN (1) | CN1344588A (en) |
| AT (1) | ATE257045T1 (en) |
| CA (1) | CA2354254A1 (en) |
| DE (1) | DE50004931D1 (en) |
| DK (1) | DK1188491T3 (en) |
| ES (1) | ES2212950T3 (en) |
| PT (1) | PT1188491E (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210568A (en) * | 2022-02-18 | 2022-03-22 | 潍坊科技学院 | Agricultural corn seed screening device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0305738D0 (en) * | 2003-03-13 | 2003-04-16 | Next Tec Ltd | Recycling of plastics material |
| US8302777B2 (en) * | 2009-10-16 | 2012-11-06 | Mba Polymers, Inc. | Reducing the content of heavy metals in recovered plastics |
| ES2584425B1 (en) * | 2015-03-24 | 2017-10-18 | Ricardo ALONSO PÉREZ | Waste separating device |
| DE102018114571B3 (en) * | 2018-06-18 | 2019-05-16 | Srw Metalfloat Gmbh | Process and plant for the preparation of fine-grained metal-containing mixtures of shredder residues with partly high proportions of viscoplastic components |
| CN112387622A (en) * | 2020-10-15 | 2021-02-23 | 湖北三峡职业技术学院 | Dried vegetable color selector and color selection method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2109707B (en) * | 1981-11-21 | 1985-08-07 | Bootham North Engineering Limi | Separating apparatus |
| DE19750464C2 (en) * | 1997-11-14 | 2000-09-14 | U T G Ges Fuer Umwelttechnik G | Method and device for processing mixtures of household waste and / or packaging waste |
| DE19753203A1 (en) * | 1997-12-01 | 1999-06-10 | Trienekens Gmbh | Assembly to process waste packaging materials |
-
2000
- 2000-09-15 AT AT00120091T patent/ATE257045T1/en not_active IP Right Cessation
- 2000-09-15 PT PT00120091T patent/PT1188491E/en unknown
- 2000-09-15 ES ES00120091T patent/ES2212950T3/en not_active Expired - Lifetime
- 2000-09-15 DE DE50004931T patent/DE50004931D1/en not_active Expired - Lifetime
- 2000-09-15 DK DK00120091T patent/DK1188491T3/en active
- 2000-09-15 EP EP20000120091 patent/EP1188491B1/en not_active Expired - Lifetime
-
2001
- 2001-07-27 CA CA 2354254 patent/CA2354254A1/en not_active Abandoned
- 2001-09-13 JP JP2001277638A patent/JP2002159920A/en active Pending
- 2001-09-14 CN CN01133031A patent/CN1344588A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210568A (en) * | 2022-02-18 | 2022-03-22 | 潍坊科技学院 | Agricultural corn seed screening device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1188491A1 (en) | 2002-03-20 |
| CN1344588A (en) | 2002-04-17 |
| PT1188491E (en) | 2004-04-30 |
| EP1188491B1 (en) | 2004-01-02 |
| DE50004931D1 (en) | 2004-02-05 |
| ES2212950T3 (en) | 2004-08-16 |
| ATE257045T1 (en) | 2004-01-15 |
| DK1188491T3 (en) | 2004-05-10 |
| JP2002159920A (en) | 2002-06-04 |
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| Date | Code | Title | Description |
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| FZDE | Discontinued |