EP1237657A1 - Procede et dispositif de traitement de dechets - Google Patents

Procede et dispositif de traitement de dechets

Info

Publication number
EP1237657A1
EP1237657A1 EP00947869A EP00947869A EP1237657A1 EP 1237657 A1 EP1237657 A1 EP 1237657A1 EP 00947869 A EP00947869 A EP 00947869A EP 00947869 A EP00947869 A EP 00947869A EP 1237657 A1 EP1237657 A1 EP 1237657A1
Authority
EP
European Patent Office
Prior art keywords
waste
fraction
paper
zigzag
classifier
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Withdrawn
Application number
EP00947869A
Other languages
German (de)
English (en)
Inventor
Hermann Hofmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Herhof Umwelttechnik GmbH
Original Assignee
Herhof Umwelttechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE1999152696 external-priority patent/DE19952696B4/de
Application filed by Herhof Umwelttechnik GmbH filed Critical Herhof Umwelttechnik GmbH
Publication of EP1237657A1 publication Critical patent/EP1237657A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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

Definitions

  • the invention relates to a method for treating waste, in particular household waste, household-like waste and household-like commercial waste, and a device for carrying out such a method.
  • the invention relates in particular to a method for treating waste, in which the waste is treated biologically or biologically and thermally, in particular composted, dried, intermediately comminuted and sieved.
  • the composting is preferably carried out in one or more closed containers with forced ventilation.
  • the object of the invention is to improve such a method and to provide an apparatus for carrying out such a method.
  • this object is achieved by the characterizing features of claim 1.
  • the sieve oversize fraction is sifted after the intermediate comminution, in particular in a zigzag sifter.
  • paper and / or plastics in particular paper and / or plastic films, are separated.
  • the invention enables plastics in such a pure weed out that these can be used materially, for example for the production of binders.
  • the object on which the invention is based is achieved in a method of the type specified at the outset by separating the waste into a light fraction and a heavy fraction after the treatment described. This is preferably done by one or more air stoves. It is advantageous to first screen the intermediate shredded waste.
  • organic constituents are separated from waste, in particular from domestic waste or from commercial waste similar to household waste, in a material purity which makes it possible to use these organic components thermally in biomass heating plants or power plants.
  • the waste is preferably comminuted before the biological treatment.
  • a further advantageous development is characterized in that the heavy fraction from the air sources is subjected to a preferably selective comminution followed by sieving.
  • a device for carrying out a method for treating waste is characterized according to the invention by a classifier, in particular a zigzag classifier.
  • the device according to the invention is characterized by one or more devices for separating the treated waste into a light fraction and a heavy fraction, in particular one or more air sources. It is advantageous to provide a screening stage for the intermediate shredded waste. Another advantageous further development is characterized by a pre-shredder for shredding the waste before the biological treatment.
  • a further advantageous development is characterized by a preferably selectively operating comminution device for comminuting the heavy fraction from the air sources and by a sieving stage for subsequent sieving of the heavy fraction after the comminution.
  • FIG. 1 A schematic flow chart for the method according to the invention.
  • the waste is separated by sieving into preferably two material flows, namely an undersize fraction 14 and an oversize fraction 15.
  • the mass flow of the undersize fraction 14 is fed to one or more air stoves 9.
  • the stream of oversize fraction 15, ie the coarse grain stream or light material stream, is fed to a zigzag sifter 7, which is preferably pressurized with air.
  • a coarse-grained, airworthy light fraction 8 is generated, which consists of paper and plastic films.
  • This light fraction 8 is discharged from the zigzag sifter 7.
  • the light fraction 8 is divided into paper and plastics.
  • Paper is a high quality biomass fuel.
  • the light fraction 8 can be separated into a high-purity plastic fraction and a high-purity paper fraction. In this way, a fuel is created that mainly consists of paper and thus biomass.
  • the plastic fraction mainly contains thermoplastic films, which have to be melted down, for example, and which can be used in the liquid state as binders for thermosets or inert materials.
  • the heavy parts ie the heavy fraction 17 from the air sources 9 and 10, are subjected to a selectively acting comminution 11 with subsequent screening 13.
  • the shredded material flow is thus sieved, with all brittle parts having a smaller grain size than the elastic parts.
  • the sieve passage of small parts forms a residual fraction 18, which then mostly consists only of mineral substance.
  • a residual fraction 18 of mineral substance remains which is fed to the heavy fraction stream.
  • the light fraction from the sieve stage 13, ie the sieve overflow 19 of the sieve stage 13, can be fed to an inferior fuel fraction.
  • the screen overflow 19 can get into a fuel bunker in this way.
  • small-grained, light and heavy parts are separated again.
  • the small-grained, light parts together with the corresponding parts from the air source (s) 9 form the light fraction 20.
  • the heavy parts together with the corresponding parts from the air source (s) 9 form the heavy fraction 17.
  • the light parts 20 get into a fuel bunker. As mentioned, the light fraction 20 of the sieve overflow 19 is fed from the sieve stage 13. The light fraction 20 forms an inferior fuel fraction.
  • the invention provides a method and a device for separating paper and plastics from residual waste, which is characterized in that after a bio-thermal drying, intermediate shredding, sieving and zigzag sifting, paper and plastic films are separated from the light material stream and the heavy fractions according to air sources are fed to a selectively acting shredding with subsequent sieving.

Landscapes

  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un procédé de traitement de déchets selon lequel les déchets sont traités biologiquement, notamment compostés, séchés, réduits de façon intermédiaire (5), et tamisés. Cette invention vise à améliorer ce procédé par l'intermédiaire du tri (7) complémentaire de la fraction de granulométrie supérieure (15), en particulier dans un séparateur en zigzag, de manière à séparer les papiers et/ou les plastiques, en particulier les feuilles de papier et/ou les feuilles plastiques (8).
EP00947869A 1999-08-06 2000-06-23 Procede et dispositif de traitement de dechets Withdrawn EP1237657A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19937173 1999-08-06
DE19937173 1999-08-06
DE1999152696 DE19952696B4 (de) 1999-08-06 1999-11-02 Verfahren und Vorrichtung zur Behandlung von Abfällen
DE19952696 1999-11-02
PCT/EP2000/005799 WO2001010557A1 (fr) 1999-08-06 2000-06-23 Procede et dispositif de traitement de dechets

Publications (1)

Publication Number Publication Date
EP1237657A1 true EP1237657A1 (fr) 2002-09-11

Family

ID=26054516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00947869A Withdrawn EP1237657A1 (fr) 1999-08-06 2000-06-23 Procede et dispositif de traitement de dechets

Country Status (3)

Country Link
EP (1) EP1237657A1 (fr)
AU (1) AU6151500A (fr)
WO (1) WO2001010557A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006042159A1 (de) * 2006-09-06 2008-03-27 Ecoenergy Gesellschaft Für Energie- Und Umwelttechnik Mbh Verfahren und Vorrichtung zur Trocknung und stoffstromspezifischen Aufbereitung von durchlüftungsfähigen, grobkörnigen Abfällen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079837A (en) * 1974-03-14 1978-03-21 Grube Kenneth E System for the separation of fragmented solid waste
US4098464A (en) * 1974-10-18 1978-07-04 Krauss-Maffei Aktiengesellschaft Method of treating refuse for reclamation of valuable components thereof
DE4031417A1 (de) * 1990-10-04 1992-04-09 Peter Prof Dr Kraus Verfahren zur auftrennung von metallhaltigen muellkomponenten
DE19649901C2 (de) * 1996-10-21 2002-02-07 Herhof Umwelttechnik Gmbh Verfahren zur Trennung eines Gemisches von Restabfällen
DE19654255B4 (de) * 1996-12-23 2007-08-30 Herhof Verwaltungsgesellschaft Mbh Verfahren und Vorrichtung zur Behandlung von Abfall oder Restabfall

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0110557A1 *

Also Published As

Publication number Publication date
WO2001010557A1 (fr) 2001-02-15
AU6151500A (en) 2001-03-05

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