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EP0661367B1 - Procédé de traitement de déchets - Google Patents

Procédé de traitement de déchets Download PDF

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Publication number
EP0661367B1
EP0661367B1 EP94890218A EP94890218A EP0661367B1 EP 0661367 B1 EP0661367 B1 EP 0661367B1 EP 94890218 A EP94890218 A EP 94890218A EP 94890218 A EP94890218 A EP 94890218A EP 0661367 B1 EP0661367 B1 EP 0661367B1
Authority
EP
European Patent Office
Prior art keywords
biological
rotting
fraction
heating treatment
process according
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.)
Expired - Lifetime
Application number
EP94890218A
Other languages
German (de)
English (en)
Other versions
EP0661367A1 (fr
Inventor
Reinhard Ing. Göschl
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.)
Technisches Buero Ing Reinhard Goschl
Original Assignee
Technisches Buero Ing Reinhard Goschl
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
Application filed by Technisches Buero Ing Reinhard Goschl filed Critical Technisches Buero Ing Reinhard Goschl
Publication of EP0661367A1 publication Critical patent/EP0661367A1/fr
Application granted granted Critical
Publication of EP0661367B1 publication Critical patent/EP0661367B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form

Definitions

  • the invention relates to a method for treating residual waste, in which the light fraction is implemented by thermal processes and the Heavy fraction is subjected to a biological rotting or fermentation process.
  • Residual waste usually comes from municipal, commercial or industrial waste and arises after the previous collection and recycling all material and biological components in waste. These substances are with the known, mutually different methods collected and a material or biological recovery. The rest of the rest as well as the remnants from The treatment plants for material and biological recycling form the Residual waste.
  • the composition of the residual waste to be treated is similar to that mixed household waste, but has a lower organic content, however, an increased level of plastic waste.
  • the invention is therefore based on the object of a method of the beginning to create the type with which the prescribed parameters for the depositing remaining components can be achieved.
  • this object is achieved in that the biological rotting or fermentation process coming material of the heavy fraction an annealing treatment, preferably at a temperature of about 1600 ° C, is subjected.
  • an annealing treatment preferably at a temperature of about 1600 ° C.
  • the biological rotting or Fermentation process coming material before the annealing treatment by wind sifting of the remaining light materials This has the advantage that Substances that are not necessarily subject to the annealing treatment because are otherwise usable, the annealing process and thus the energy balance is not strain.
  • the light materials separated by wind sifting can Light fraction are added prior to their thermal utilization, whereby the in the energy content contained in light materials can be used particularly well.
  • the exhaust gases resulting from the annealing treatment can, if necessary, Purification, in the biological rotting or fermentation process, whereby the resulting exhaust gases in the biological treatment plant accordingly be worked up so that pollution of the environment by these exhaust gases is switched off.
  • the gases can be used to cool the annealing material at the end of the annealing treatment introduced gases at the beginning of the annealing treatment to warm up the red-hot good can be used.
  • FIG. 3 shows a basic diagram of the annealing treatment step.
  • the residual waste generated is processed in a mechanical processing plant which hazardous waste and valuable materials are separated into a Light fraction and a heavy fraction separated.
  • the light fraction which is thermally recyclable, is fed to a special incinerator.
  • the high loss on ignition is used as an energy source and the carbon increases Burned carbon dioxide.
  • the light fraction has a high calorific value and has one essentially constant composition, causing the operation of ecologically sensible and economically favorable incineration plants, e.g. after the principle of the circulating fluidized bed is possible.
  • the heavy fraction coming from the mechanical processing plant is subjected to a biological treatment, where appropriate sewage sludge can be added.
  • the biological treatment is a rotting or a Fermentation process.
  • This biological processing plant is now connected as Another new process step that the biological rotting coming material after it has been screened and screened into a light and heavy fraction is separated, is further processed.
  • the won light Fraction is the light fraction, which comes directly from the mechanical Processing plant for residual waste comes, mixed and burned there.
  • the fraction falling through the sieve or coming from the air classifier heavy fraction is subjected to an afterglow step.
  • the screening of the The product is passed through a sieve with a preferred mesh size of 15 mm.
  • the afterglow is carried out in a special tunnel furnace, whereby However, the prerequisite is that the water content in the biological Treatment level emerging material is reduced to about 20 wt .-% and the maximum possible removal of all light materials is achieved by the wind classifier.
  • the tunnel kiln is preferably electric Resistance heating elements heated to avoid an open flame in the furnace and thereby reduce the risk of fire.
  • This tunnel kiln that becomes Treated goods heated to a temperature of about 1600 ° C. Then it arises a glass-like product, which after cooling accordingly can be deposited.
  • the tunnel kiln is designated 1 in FIG. 3 and has one Resistance heating element 2 for glowing the material.
  • the loading of the Tunnel kiln 1 takes place via a conveyor belt 3, which the goods over a Filling hopper 4 is placed on the conveyor belt 5 leading through the furnace. Of this Conveyor belt 5 then drops the product at 6 and delivers it to a landfill.
  • the kiln 1 has a heating zone 7 and a cooling zone 8, which through a targeted air flow is achieved. This happens between these zones Annealing the good.
  • a pump 9 the cooling air introduced at the end of the cooling zone 8 at the bottom of the kiln occurs through the materials to be cooled and turns out at 10 at the top led out of the oven.
  • the line 10 then leads to the central area of the Heating zone 7, whereby the material introduced into the kiln 1 is heated.
  • the warming gas led out of the kiln via line 11 is transferred via guided a heat exchanger 12, which cools via a fresh water line 13 is.
  • the cooled gas emerging from the heat exchanger 12, which with condensate is mixed, is fed via a line 14 to a separator 15, the cooled air is introduced via line 16 into the cooling zone of the kiln 1, etc. in the direction of the product flow in front of the line coming from the pump 9.
  • the cooling air is heated by the annealed material and exits via line 17 the cooling zone of the kiln and after the line 10 again in kiln 1, etc.
  • the warmed up air which also contains volatile components and Water vapor is enriched, exits the furnace via line 22 passed through a separator 23 and from there via a line 24 one Cleaning station 25 fed.
  • the cleaning station 25 consists of two Wash stages 26, 27, in which the pollutants entrained in the exhaust gas washed out or neutralized. The first wash stage works in the acidic area and the second washing stage in the basic area.
  • the condensate coming from the separators 15 and 23, as well as that from the Heat exchanger 12 emerging fresh water is via lines 35 and 36 in the rotting plant 31 is supplied in order to control the moisture balance there and also to break down any pollutant particles that are carried along.
  • the quantity flow diagram shown in FIG. 2 shows this in another form 1, but with the addition of the individual Branches of guided substrate quantities.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Removal Of Specific Substances (AREA)

Claims (6)

  1. Procédé de traitement des déchets dans lequel la fraction légère est transformée par un procédé thermique et la fraction lourde est soumise à un traitement biologique de pourrissement ou de fermentation, caractérisé par le fait que les matières de la fraction lourde, soumises au traitement biologique de pourrissement ou de fermentation, sont soumises à un traitement de calcination, de préférence à une température d'environ 1600°C.
  2. Procédé selon la revendication 1, caractérisé par le fait que les matières recueillies à la suite du traitement biologique de pourrissement ou de fermentation avant traitement de calcination sont séparées des parties légères résiduelles par un triage pneumatique.
  3. Procédé selon la revendication 2, caractérisé par le fait que les particules légères, séparées par triage pneumatique, sont ajoutées à la fraction légère, avant exploitation thermique de celle-ci.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé par le fait que les gaz produits durant le traitement de calcination peuvent être éventuellement introduits, après épuration, dans le traitement biologique de pourrissement ou de fermentation.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé par le fait que les gaz introduits à la fin du traitement de calcination, pour refroidir les matières issues de ce traitement, sont utilisés au début du traitement de calcination pour réchauffer les matières à calciner.
  6. Procédé selon la revendication 5, caractérisé par le fait que les gaz extraits des matières à calciner à la suite de leur réchauffage sont déshydratés, les eaux de récupération étant apportées au traitement biologique de pourrissement ou de fermentation.
EP94890218A 1993-12-29 1994-12-22 Procédé de traitement de déchets Expired - Lifetime EP0661367B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2644/93 1993-12-29
AT0264493A AT399864B (de) 1993-12-29 1993-12-29 Verfahren zur behandlung von restmüll

Publications (2)

Publication Number Publication Date
EP0661367A1 EP0661367A1 (fr) 1995-07-05
EP0661367B1 true EP0661367B1 (fr) 1998-09-02

Family

ID=3537967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94890218A Expired - Lifetime EP0661367B1 (fr) 1993-12-29 1994-12-22 Procédé de traitement de déchets

Country Status (3)

Country Link
EP (1) EP0661367B1 (fr)
AT (2) AT399864B (fr)
DE (1) DE59406828D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0899509B1 (fr) 1997-07-18 2000-11-02 Amand Entwicklungs GmbH Procédé et installation de traitement thermique de déchets et/ou de fragments de déchets

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736111A (en) * 1971-05-17 1973-05-29 Hercules Inc Process and apparatus for the complete reclamation of valuable products from solid waste
DE3402215A1 (de) * 1984-01-24 1985-07-25 Peter 7869 Holzinshaus Voelskow Verfahren, anlage und einrichtungen zur gleichzeitigen verwertung von muell und klaerschlamm
DE3440484A1 (de) * 1984-11-06 1986-05-07 Peter 7869 Aitern Voelskow Verfahren zur verschwelung teilweise feuchter biomasse - abfaelle
DE3807249C1 (en) * 1988-01-26 1990-02-15 Peter 7869 Aitern De Voelskow A process for the thermal utilisation of organic wastes

Also Published As

Publication number Publication date
EP0661367A1 (fr) 1995-07-05
AT399864B (de) 1995-08-25
ATE170543T1 (de) 1998-09-15
ATA264493A (de) 1994-12-15
DE59406828D1 (de) 1998-10-08

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