EP1882529B1 - Procédé et dispositif destinés à la séparation de résidus - Google Patents

Procédé et dispositif destinés à la séparation de résidus Download PDF

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Publication number
EP1882529B1
EP1882529B1 EP07012149.6A EP07012149A EP1882529B1 EP 1882529 B1 EP1882529 B1 EP 1882529B1 EP 07012149 A EP07012149 A EP 07012149A EP 1882529 B1 EP1882529 B1 EP 1882529B1
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EP
European Patent Office
Prior art keywords
air separation
gas flow
gas
waste treatment
plates
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.)
Active
Application number
EP07012149.6A
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German (de)
English (en)
Other versions
EP1882529A1 (fr
Inventor
Johannes Martin
Michael Busch
Eva-Christine Langhein
Dragutin Brebric
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.)
Martin GmbH fuer Umwelt und Energietechnik
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Martin GmbH fuer Umwelt und Energietechnik
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Publication date
Application filed by Martin GmbH fuer Umwelt und Energietechnik filed Critical Martin GmbH fuer Umwelt und Energietechnik
Priority to PL07012149T priority Critical patent/PL1882529T3/pl
Publication of EP1882529A1 publication Critical patent/EP1882529A1/fr
Application granted granted Critical
Publication of EP1882529B1 publication Critical patent/EP1882529B1/fr
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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
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • B07B4/04—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall in cascades

Definitions

  • the invention relates to a method for separating residues from a thermal waste treatment in at least one fine fraction and a coarse fraction, in which the residues are discharged dry from a waste treatment plant and separated into at least two fractions.
  • the invention also relates to a device for separating residues from a thermal waste treatment in at least one fine fraction and in a coarse fraction.
  • a method for separating residues is from the EP 0 691 160 B1 known.
  • the dry waste discharged from the waste treatment plant or a firing system are first placed on a bar screen, where the oversize with more than 300 mm dimension is mechanically separated.
  • This coarse-faced material then passes over an electromagnetically driven 2mm screen. In this way, the fine fraction is separated, which is fed to a special treatment.
  • the remaining part of the residual materials is fed to a further treatment, namely comminution, iron separation and non-ferrous removal.
  • the object of the invention is to provide a method and a device to achieve a better burnout.
  • This object is achieved in a method of the type described in the present invention that is used for the air classification ambient air or gas from that area of the waste treatment or waste incineration plant is used, in which there is still plenty of fresh oxygen to better burnout of the residues To ignite that by a controlled exhaust extraction In the generation of the gas flow for the air classification, a dust outlet is avoided and that the exhaust air from the air classification of the incinerator is fed back ..
  • the plates can either be executed without perforation or have holes or passages through which some of the residues even before the free fall distance reaches the underlying sheet.
  • agglomerations are broken up on the one hand by the shaking movements and in particular by the free fall, whereby a very good separation between the fine fraction and the coarser main fraction is made possible by the gas flow, which is preferably directed transversely to this falling movement, especially in the free fall sections.
  • Another advantage is that when using a gas for air classification, which contains an oxygen afterreaction the residues occur in particular in the field of free fall distances, so that an improvement of the slag quality is available because of the higher degree of burnout.
  • the separation of the individual fractions in the dry state is much more effective because of the lack of agglomerations.
  • the controlled suction to achieve an air classification also prevents a backflow of the gas used for air classification in the waste treatment plant or furnace.
  • the webs can be arranged so that the residues are conveyed on the web by the shaking movement. However, it is advantageous if the webs are arranged obliquely.
  • the separation can also be improved by the fact that the fine fraction is also discharged in the area of the vibratory conveying movement by a gas flow.
  • the gas stream after the air classification is first fed to a cyclone separation and then a filtering process as needed.
  • the separated by the air classification fine fraction of the thermal waste treatment is fed again. It is known that this fine fraction is much more contaminated with pollutants than the coarser main fraction, so that this recycling either destruction of these pollutants or better integration into vitrified slag takes place.
  • the carrier air or the carrier gas can be returned to the incinerator. That is, the exhaust air is fed back to the air classification of the incinerator.
  • the invention also relates to a device for separating residues from thermal waste treatment into a fine fraction and into a coarse fraction.
  • the device for separating residues from a thermal waste treatment in at least one fine fraction and in a coarse fraction comprises means for generating a gas flow for an air separation and a supported on vibrating elements (2) housing with a plurality of mutually and obliquely offset plates, wherein the housing is equipped with means for generating a direction of the obliquely downwardly offset plates aligned vibratory motion component and the plates are connected to the housing at their side edges and the gas flow is transverse to the direction of fall and counter to the Haittel concept Gay.
  • the classification into at least one fine fraction and a coarse fraction essentially by the air classification in the free fall distances between the slanted plates instead of. In this case movement agglomerations are dissolved and released the fines.
  • the plates are adjustably connected in their inclination with the housing, it is possible to influence the Rüttel concept Gay and adjust the flow properties of the residues.
  • at least one suction line may be provided on the side opposite the discharge side of the housing.
  • the device may comprise a dry waste supply means of the waste treatment plant.
  • a cyclone and possibly also a filter are switched on in the suction path to the housing.
  • an inlet for the serving for air classification gas is connected to a portion of the waste treatment plant, in which a lot of unused oxygen is present, a post-reaction of dry applied residues is possible and an undesirable return of gas in the Ausbrand Scheme on End of the firing of the waste treatment plant avoided. Since it is a defined, defined gas / air flow, the return to the combustion plant is meaningful in such a way that a volume flow or oxygen mass equivalent replacement of combustion air or fluidized air takes place.
  • the device for separating residues comprises a housing 1 which is supported relative to the floor by means of oscillating elements 2, in the case shown compression springs.
  • a housing 1 which is supported relative to the floor by means of oscillating elements 2, in the case shown compression springs.
  • several non-perforated plates 3.1 to 3.5 are adjustably connected in their inclination to the housing.
  • the plates are arranged in such a way that the slag or discontinued residue 4 applied to the uppermost and first plates 3.1 first reaches the plate 3.2 provided with substantially the same inclination and from there then falls onto the underlying plate 3.3, this being The process continues until the slag or the residues pass over the plate 3.4 to the plate 3.5 and from there to the outside.
  • This transport of the residues or the slag is carried out by shaking movement, which is generated by vibrators 5.
  • a second vibrator 5 is arranged, which generates vibration energy with movement components in the direction of the sloping plates 3.1 to 3.5.
  • a suction pipe 6 gas is sucked by means of a fan, not shown, which enters at the top 7 of the housing and is connected to that point of the waste treatment plant or a Feuerungsrostes, in the area much unused oxygen is present. At the designated 7 side also the slag is supplied.
  • this gas still contains a relatively large amount of oxygen is advantageous in that this gas passes through the cascading downwards mass flows of the residues and thereby ignites a further reaction, which leads to a better burnout of the slag.
  • ambient air can also be supplied via the end face 8 of the housing.
  • the gas streams 9 between the inclined plates are used for air sifting, ie, they take with them the fine particles.
  • the suction tube designated 6 is connected in the further course with a cyclone and then with a filter, so that the mitTece in the gas stream Fine fraction can be recovered and recycled with the combustion air to the waste incineration process.

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  • Combined Means For Separation Of Solids (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (18)

  1. Procédé de séparation de résidus d'une installation de traitement thermique de déchets en au moins une fraction fine et une fraction grossière, dans lequel les résidus d'une installation de traitement de déchets sont évacués à l'état sec et divisés en au moins deux fractions, les résidus étant transportés sur au moins un niveau vers le bas en cascade dans des pistes et des parcours de chute libre intermédiaires en exerçant un mouvement de secousses et la fraction fine est alors évacuée au niveau des parcours de chute libre par flux gazeux, la fraction grossière à l'exception de la fraction fine évacuée par le criblage par soufflerie passant dans le parcours en cascade, caractérisé en ce que, pour le criblage par soufflerie, on utilise l'air ambiant ou du gaz de a zone de l'installation de traitement des déchets ou de brûlage des déchets dans laquelle il reste encore beaucoup d'oxygène non consommé pour favoriser une meilleure combustion des résidus, qu'une sortie de poussière est évitée grâce à une aspiration contrôlée du gaz d'échappement lors de la génération du flux gazeux destiné au criblage par soufflerie et que l'air d'échappement est renvoyé par le cribleur à soufflerie vers l'installation de brûlage.
  2. Procédé selon la revendication 1, caractérisé en ce que les pistes sont disposées à l'oblique.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les résidus sont transportés vers le bas en passant par plusieurs niveaux.
  4. Procédé selon une des revendications précédentes, caractérisé en ce que la fraction fine est évacuée également au niveau du mouvement de convoyage à secousses par un flux gazeux.
  5. Procédé selon une des revendications précédentes, caractérisé en ce que le flux gazeux est orienté transversalement au sens de chute.
  6. Procédé selon une des revendications précédentes, caractérisé en ce que le flux gazeux est orienté dans le sens contraire au mouvement de convoyage à secousses.
  7. Procédé selon une des revendications précédentes, caractérisé en ce que le criblage par soufflerie a lieu dans les parcours de chute libre et entre les parcours de convoyage par secousses avec une vitesse du gaz réglable de 2 à 10 m/s, de préférence de 3 à 5 m/s.
  8. Procédé selon une des revendications précédentes, caractérisé en ce que le flux gazeux, après le criblage par soufflerie, est d'abord acheminé vers un séparateur à cyclone puis de préférence vers un processus de filtration.
  9. Procédé selon une des revendications précédentes, caractérisé en ce que la fraction fine séparée par le criblage par soufflerie est renvoyée vers le système de traitement thermique des déchets.
  10. Procédé selon une des revendications précédentes, caractérisé en ce que l'air d'échappement du cribleur à soufflerie est renvoyé vers l'installation de brûlage.
  11. Procédé selon une des revendications précédentes, caractérisé en ce que différentes vitesses d'écoulement sont paramétrées entre les différents plateaux de convoyage.
  12. Dispositif de séparation de résidus d'un système de traitement thermique de déchets en au moins une fraction fine et une fraction grossière, comportant des moyens de génération d'un flux gazeux pour un criblage par soufflerie et un boîtier (1) s'appuyant sur des éléments vibrants (2), comprenant plusieurs plateaux (3.1 - 3.5) disposés obliquement les uns sous les autres, le boîtier étant équipé de moyens de génération d'un composant de mouvement de vibration orienté en direction des plateaux (3.1 - 3.5) disposés les uns sous les autres et décalés obliquement, le boîtier étant équipé de moyens de génération d'un composant de mouvement vibratoire orienté en direction des plateaux (3.1 - 3.5) disposés les uns sous les autres et décalés obliquement, caractérisé en ce que les plateaux (3.1 - 3.5) sont reliés au boîtier (1) par leurs bords latéraux et que le flux gazeux est orienté transversalement au sens de chute et dans le sens inverse du mouvement de convoyage par secousses.
  13. Dispositif selon la revendication 12, caractérisé en ce que les plateaux (3.1 - 3.5) sont reliés au boîtier (1) avec possibilité de réglage de leur inclinaison.
  14. Dispositif selon la revendication 12 ou 13, caractérisé par au moins une conduite d'aspiration sur le côté opposé au côté évacuation du boîtier (1).
  15. Dispositif selon une des revendications 12 à 14, caractérisé par un orifice d'admission de préférence réglable pour un gaz pouvant être conduit entre les plateaux (3.1 - 3.5) en vue d'un criblage par soufflerie.
  16. Dispositif selon une des revendications 12 à 15, caractérisé par un dispositif d'acheminement de résidus secs de l'installation de traitement de déchets.
  17. Dispositif selon une des revendications 12 à 16, caractérisé en ce que, dans le parcours d'aspiration en aval du boîtier (1), un cyclone et de préférence un filtre sont insérés.
  18. Dispositif selon une des revendications 12 à 17, caractérisé en ce qu'une arrivée réglable pour le gaz servant au criblage par soufflerie est reliée à une zone de l'installation de traitement de déchets dans laquelle il reste encore beaucoup d'oxygène non consommé.
EP07012149.6A 2006-07-26 2007-06-21 Procédé et dispositif destinés à la séparation de résidus Active EP1882529B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07012149T PL1882529T3 (pl) 2006-07-26 2007-06-21 Sposób i urządzenie do separacji odpadów resztkowych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006035260A DE102006035260A1 (de) 2006-07-26 2006-07-26 Verfahren und Vorrichtung zum Trennen von Reststoffen

Publications (2)

Publication Number Publication Date
EP1882529A1 EP1882529A1 (fr) 2008-01-30
EP1882529B1 true EP1882529B1 (fr) 2014-10-29

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Country Status (9)

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US (2) US7971724B2 (fr)
EP (1) EP1882529B1 (fr)
JP (1) JP5618114B2 (fr)
CA (1) CA2590890C (fr)
DE (1) DE102006035260A1 (fr)
DK (1) DK1882529T3 (fr)
ES (1) ES2523584T3 (fr)
PL (1) PL1882529T3 (fr)
PT (1) PT1882529E (fr)

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EP2778523B1 (fr) 2013-03-14 2019-06-19 Hitachi Zosen Inova AG Dispositif de traitement d'impuretés
PL232821B1 (pl) 2013-11-26 2019-07-31 Czech Adam Przed Obrotu Surowcami Wtornymi Hermex Urządzenie do czyszczenia i klasyfikacji ziarnowej drobnych odpadów metalurgicznych oraz sposób czyszczenia i klasyfikacji ziarnowej drobnych odpadów metalurgicznych
KR101398874B1 (ko) 2014-01-24 2014-05-27 (주)제이엠테크 알루미늄 그래뉼 풍력 선별장치
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PT3252377T (pt) * 2016-05-30 2020-06-02 Martin Gmbh Fuer Umwelt Und Energietechnik Método para o tratamento de escória de um dispositivo de combustão
CN108787452B (zh) * 2018-07-26 2024-04-02 遵义华清塑料制品有限公司 塑料编织废弃物的负压分离设备
CN110153011B (zh) * 2019-05-31 2020-10-02 安徽省正宇粮食机械有限公司 一种环保粮食除尘设备
CN111530746B (zh) * 2020-05-15 2023-12-22 河南威猛振动设备股份有限公司 一种振动分选机以及分选方法
CN112934700A (zh) * 2021-01-13 2021-06-11 江西华汾粮油实业有限公司 一种大米加工的高效净化过滤装置
CN114054350B (zh) * 2021-11-11 2023-10-27 贵州香腾绿色食品加工有限公司 一种大米生产加工设备及大米生产加工工艺

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Also Published As

Publication number Publication date
CA2590890A1 (fr) 2008-01-26
DE102006035260A1 (de) 2008-01-31
ES2523584T3 (es) 2014-11-27
US8251226B2 (en) 2012-08-28
PT1882529E (pt) 2014-11-17
CA2590890C (fr) 2014-04-08
EP1882529A1 (fr) 2008-01-30
US20080023374A1 (en) 2008-01-31
US20110180460A1 (en) 2011-07-28
JP2008043942A (ja) 2008-02-28
PL1882529T3 (pl) 2015-01-30
US7971724B2 (en) 2011-07-05
DK1882529T3 (en) 2014-11-24
JP5618114B2 (ja) 2014-11-05

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