EP1882529B1 - Method and device for separating residual materials - Google Patents
Method and device for separating residual materials Download PDFInfo
- 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.)
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- 238000000034 method Methods 0.000 title claims description 25
- 239000000463 material Substances 0.000 title claims description 10
- 239000003570 air Substances 0.000 claims description 41
- 239000007789 gas Substances 0.000 claims description 35
- 239000002699 waste material Substances 0.000 claims description 25
- 238000000926 separation method Methods 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 238000004056 waste incineration Methods 0.000 claims description 4
- 239000012080 ambient air Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000010789 controlled waste Substances 0.000 claims 1
- 239000002893 slag Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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)
Description
Die Erfindung bezieht sich auf ein Verfahren zum Trennen von Reststoffen aus einer thermischen Abfallbehandlung in mindestens eine Feinfraktion und eine Grobfraktion, bei dem die Reststoffe aus einer Abfallbehandlungsanlage trocken ausgetragen und in mindestens zwei Fraktionen getrennt werden.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.
Die Erfindung bezieht sich auch auf eine Vorrichtung zum Trennen von Reststoffen aus einer thermischen Abfallbehandlung in mindestens eine Feinfraktion und in eine Grobfraktion.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.
Ein Verfahren zum Trennen von Reststoffen ist aus der
Die Verwendung von Sieben zur Abtrennung der Feinfraktion von kleiner als 2 mm hat den Nachteil, dass einerseits die Siebe verstopfen und andererseits diese Siebe einem starken Verschleiß unterliegen.The use of sieves for separating the fine fraction of less than 2 mm has the disadvantage that on the one hand clog the sieves and on the other hand, these sieves are subject to heavy wear.
Aus der
Aus der
Einen weiteren Windsichter zeigt die
Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung zur Verfügung zu stellen, um einen besseren Ausbrand zu erzielen.The object of the invention is to provide a method and a device to achieve a better burnout.
Diese Aufgabe wird bei einem Verfahren der eingangs erläuterten Art erfindungsgemäß dadurch gelöst, dass für die Windsichtung Umgebungsluft verwendet wird oder Gas aus demjenigen Bereich der Abfallbehandlungs- bzw. Abfallverbrennungsanlage verwendet wird, in welchem noch viel unverbrauchter Sauerstoff vorhanden ist, um einen besseren Ausbrand der Reststoffe anzufachen, dass durch eine kontrollierte Abgasabsaugung bei der Erzeugung der Gasströmung für die Windsichtung ein Staubaustritt vermieden wird und dass die Abluft von der Windsichtung der Verbrennungsanlage wieder zugeführt wird..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 ..
Ein wesentlicher Punkt dieser Verfahrensführung besteht darin, dass die Reststoffe durch Rüttelbewegung auf Platten befördert werden, so dass mit Ausnahme des durch die Windsichtung ausgetragenen Feinanteils der übrige Anteil der Reststoffe den Kaskadenweg, vorzugsweise vollständig den ganzen Kaskadenweg, durchläuft. Die erfindungsgemäße Ausgestaltung ermöglicht es, dass bei der Windsichtung die weitere Reaktion im Sinne eines besseren Ausbrandes der Reststoffe angefacht und außerdem hierdurch ein Falschlufteintrag in die Verbrennungskammer vermieden wird, der aufgrund des fehlenden Wasserschlosses im Entschlacker möglich wäre.An essential point of this procedure is that the residues are transported by shaking on plates, so that, with the exception of the discharged by the air separation fine fraction of the remaining portion of the residues through the cascade, preferably completely the entire cascade. The embodiment of the invention makes it possible in the air classification, the further reaction in the sense of a better burnout of the residuals and also thereby a false air entering the combustion chamber is avoided, which would be possible due to the lack of water lock in the purifier.
Die Platten können dabei entweder ungelocht ausgeführt werden oder Löcher bzw. Durchtritte aufweisen, durch die ein Teil der Reststoffe auch schon vor der freien Fallstrecke auf das darunter liegende Blech gelangt. Hierdurch werden Agglomerationen einerseits durch die Rüttelbewegungen und insbesondere durch den freien Fall aufgebrochen, wobei insbesondere bei den freien Fallstrecken eine sehr gute Trennung zwischen der Feinfraktion und der gröberen Hauptfraktion durch die vorzugsweise quer zu dieser Fallbewegung ausgerichtete Gasströmung ermöglicht wird.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. As a result, 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.
Ein weiterer Vorteil besteht darin, dass bei Verwendung eines Gases für die Windsichtung, welches Sauerstoff enthält eine Nachreaktion bei den Reststoffen insbesondere im Bereich der freien Fallstrecken eintritt, so dass eine Verbesserung der Schlackenqualität wegen des höheren Grades des Ausbrandes erhältlich ist.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.
Durch die kontrollierte Absaugung bei der Erzeugung einer Gasströmung für die Windsichtung wird ein Staubaustritt vermieden, zu dessen Vermeidung üblicherweise Naßentschlacker eingesetzt werden, welche den Nachteil aufweisen, dass die ausgetragenen Reststoffe bzw. die ausgetragene Schlacke ein höheres Gewicht aufweisen, wodurch die Kosten für die Deponie erhöht werden.By the controlled extraction in the generation of a gas flow for the air separation dust discharge is avoided, to avoid this usually wet slagger are used, which have the disadvantage that the discharged residues or the discharged slag have a higher weight, thereby reducing the cost of landfill increase.
Weiterhin ist die Trennung der einzelnen Fraktionen im trockenen Zustand wegen der fehlenden Agglomerationen wesentlich effektiver. Die kontrollierte Absaugung zur Erzielung einer Windsichtung verhindert auch eine Rückströmung von dem für die Windsichtung verwendeten Gas in die Abfallbehandlungsanlage bzw. Feuerungsanlage.Furthermore, 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.
Die Bahnen können so angeordnet sein, dass durch die Rüttelbewegung die Reststoffe auf der Bahn gefördert werden. Vorteilhaft ist es jedoch wenn die Bahnen schräg angeordnet sind.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.
Eine gute Trennung wird insbesondere dann erzielt, wenn die Reststoffe über mehrere Stufen nach unten gefördert werden.Good separation is achieved in particular if the residues are conveyed downwards over several stages.
Die Trennung kann auch dadurch verbessert werden, dass die Feinfraktion auch im Bereich der Rüttelförderbewegung durch eine Gasströmung ausgetragen wird.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.
In der Praxis hat es sich bewährt, wenn die Gasströmung quer zur Fallrichtung verläuft. Außerdem ist es vorteilhaft, wenn sie gegenläufig zur Rüttelförderbewegung verläuft.In practice, it has proven useful if the gas flow is transverse to the direction of fall. In addition, it is advantageous if it runs in opposite directions to Rüttelförderbewegung.
Um eine wirkungsvolle Klassifizierung zu erzielen erfolgt in weiterer Ausgestaltung der Erfindung die Windsichtung in den Strecken des freien Falls und zwischen den Rüttelförderstrecken mit einer regelbaren Gasgeschwindigkeit von 2 bis 10 m/s, vorzugsweise zwischen 3 und 5 m/s.In order to achieve an effective classification takes place in a further embodiment of the invention, the air classification in the routes of free fall and between the Rüttelförderstrecken with a controllable gas velocity of 2 to 10 m / s, preferably between 3 and 5 m / s.
Zur Gewinnung der durch die Windsichtung von der Hauptfraktion abgetrennten Feinfraktion ist in weiterer Ausgestaltung der Erfindung vorgesehen, dass der Gasstrom nach der Windsichtung zunächst einer Zyklonabscheidung und nach Bedarf anschließend einem Filtervorgang zugeführt wird.To obtain the separated by the air classification of the main fraction fine fraction is provided in a further embodiment of the invention that the gas stream after the air classification is first fed to a cyclone separation and then a filtering process as needed.
In weiterer vorteilhafter Ausgestaltung der Erfindung wird die durch die Windsichtung abgeschiedene Feinfraktion der thermischen Abfallbehandlung wieder zugeführt. Es ist bekannt, dass diese Feinfraktion wesentlich stärker mit Schadstoffen belastet ist als die gröbere Hauptfraktion, sodass durch diese Rückführung entweder eine Zerstörung dieser Schadstoffe oder eine bessere Einbindung in verglaste Schlackenteile erfolgt. Die Trägerluft bzw. das Trägergas kann der Verbrennungsanlage wieder zugeführt werden. Das heißt die Abluft wird der Windsichtung der Verbrennungsanlage wieder zugeführt.In a further advantageous embodiment of the invention, 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.
Vorteilhaft ist es, wenn unterschiedliche Strömungsgeschwindigkeiten zwischen den einzelnen Förderungsplatten eingestellt werden.It is advantageous if different flow velocities are set between the individual delivery plates.
Die Erfindung bezieht sich auch auf eine Vorrichtung zum Trennen von Reststoffen aus einer thermischen Abfallbehandlung in eine Feinfraktion und in eine Grobfraktion. Durch diese Vorrichtung sollen die Nachteile des Standes der Technik insbesondere die Verstopfungsgefahr bei Sieben und der erhöhte Verschleiß vermieden werden und es soll die Durchführung des weiter oben beschriebenen vorteilhaften Verfahrens ermöglicht werden.The invention also relates to a device for separating residues from thermal waste treatment into a fine fraction and into a coarse fraction. By this device, the disadvantages of the prior art, in particular the risk of clogging in screening and the increased wear to be avoided and it should be possible to carry out the advantageous method described above.
Die Vorrichtung zum Trennen von Reststoffen aus einer thermischen Abfallbehandlung in mindestens eine Feinfraktion und in eine Grobfraktion ist weist Mittel zum Erzeugen einer Gasströmung für eine Windsichtung und ein auf Schwingelementen (2) abgestütztes Gehäuse mit mehreren untereinander und schräg versetzt angeordneten Platten auf, wobei das Gehäuse mit Mitteln zur Erzeugung einer in Richtung der schräg nach unten versetzt angeordneten Platten ausgerichteten Vibrationsbewegungskomponente ausgerüstet ist und die Platten mit dem Gehäuse an ihren Seitenrändern verbunden sind und die Gasströmung quer zur Fallrichtung und gegenläufig zur Rüttelförderbewegung verläuft..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 Rüttelförderbewegung.
Bei dieser Vorrichtung findet die Klassierung in mindestens eine Feinfraktion und eine Grobfraktion im wesentlichen durch die Windsichtung in den freien Fallstrecken zwischen den schräg angeordneten Platten statt. Bei dieser Fallbewegung werden Agglomerationen aufgelöst und die Feinanteile freigegeben.In this device, 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.
Wenn in weiterer Ausgestaltung der Erfindung die Platten in ihrer Neigung einstellbar mit dem Gehäuse verbunden sind, so besteht die Möglichkeit die Rüttelförderbewegung zu beeinflussen und den Fliesseigenschaften der Reststoffe anzupassen. Weiterbildend kann mindestens eine Absaugleitung an der der Austragsseite entgegengesetzten Seite des Gehäuses vorgesehen sein.If, in a further embodiment of the invention, the plates are adjustably connected in their inclination with the housing, it is possible to influence the Rüttelförderbewegung and adjust the flow properties of the residues. Further, at least one suction line may be provided on the side opposite the discharge side of the housing.
Weiterhin wird vorgeschlagen, eine vorzugsweise regelbare Einlassöffnung für ein zur Windsichtung zwischen den Platten hindurch leitbares Gas vorzusehen.Furthermore, it is proposed to provide a preferably controllable inlet opening for a gas to be passed through the plates for air separation.
Außerdem kann die Vorrichtung eine Zufuhreinrichtung für trockene Reststoffe der Abfallbehandlungsanlage aufweisen.In addition, the device may comprise a dry waste supply means of the waste treatment plant.
Zur Abscheidung der abgetrennten Feinfraktion sind in dem Absaugweg nach dem Gehäuse ein Zyklon und gegebenenfalls auch ein Filter eingeschaltet.To separate the separated fine fraction, a cyclone and possibly also a filter are switched on in the suction path to the housing.
Wenn in weiterer Ausgestaltung der Erfindung ein Einlass für das zur Windsichtung dienende Gas mit einem Bereich der Abfallbehandlungsanlage verbunden ist, in dem noch viel unverbrauchter Sauerstoff vorhanden ist, so wird eine Nachreaktion der trocken ausgebrachten Reststoffe ermöglicht und eine unerwünschte Rückführung von Gas in den Ausbrandbereich am Ende der Feuerung der Abfallbehandlungsanlage vermieden. Da es sich um einen gefassten, definierten Gas-/Luftstrom handelt, ist die Rückführung in die Verbrennungsanlage dergestalt sinnvoll, dass hierdurch ein volumenstrom- oder sauerstoffmassen-äquivalenter Ersatz von Verbrennungsluft oder Wirbelluft erfolgt.If, in a further embodiment of the invention, 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 Ausbrandbereich 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.
Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispieles erläutert.The invention will be explained with reference to an embodiment shown in the drawing.
Es zeigt
- Figur 1
- eine Seitenansicht einer Vorrichtung zum Trennen von Reststoffen aus einer thermischen Abfallbehandlung und
Figur 2- eine Ansicht der in
Figur 1 gezeigten Anlage in Richtung des Pfeils A.
- FIG. 1
- a side view of an apparatus for separating residues from a thermal waste treatment and
- FIG. 2
- a view of in
FIG. 1 shown attachment in the direction of arrow A.
Wie aus der Zeichnung ersichtlich umfasst die Vorrichtung zum Trennen von Reststoffen ein Gehäuse 1, welches gegenüber dem Boden durch Schwingelemente 2, im dargestellten Falle Druckfedern, abgestützt ist. Im Inneren des Gehäuses sind mehrere ungelochte Platten 3.1 bis 3.5 in ihrer Neigung verstellbar mit dem Gehäuse verbunden. Die Platten sind so angeordnet, dass die auf die oberste und erste Platte 3.1 aufgegebene Schlacke bzw. aufgegebener Reststoff 4 zunächst auf die im wesentlichen mit der gleichen Neigung versehene Platte 3.2 gelangt und von dort dann auf die darunter liegende Platte 3.3 fällt, wobei sich dieser Vorgang fortsetzt bis die Schlacke bzw. die Reststoffe über die Platte 3.4 zur Platte 3.5 und von dort nach außen gelangt.As can be seen from the drawing, the device for separating residues comprises a housing 1 which is supported relative to the floor by means of oscillating
Dieser Transport der Reststoffe bzw. der Schlacke erfolgt durch Rüttelbewegung, die durch Vibratoren 5 erzeugt wird. Auf der gegenüberliegenden und auf der Zeichnung nicht sichtbaren Seite des Gehäuses 1 ist ein zweiter Vibrator 5 angeordnet, der Schwingungsenergie mit Bewegungskomponenten in Richtung der abfallend verlaufenden Platten 3.1 bis 3.5 erzeugt.This transport of the residues or the slag is carried out by shaking movement, which is generated by
Über ein Absaugrohr 6 wird mittels eines nicht dargestellten Ventilators Gas angesaugt, welches an der Oberseite 7 des Gehäuses eintritt und dabei mit der derjenigen Stelle der Abfallbehandlungsanlage bzw. eines Feuerungsrostes verbunden ist, in dessen Bereich noch viel unverbrauchter Sauerstoff vorhanden ist. An der mit 7 bezeichneten Seite wird auch die Schlacke zugeführt.Via a
Die Tatsache, dass dieses Gas noch relativ viel Sauerstoff enthält ist insofern vorteilhaft, als dieses Gas durch die kaskadenförmig nach unten abfallenden Masseströme der Reststoffe hindurchstreicht und dabei eine weitere Reaktion anfacht, die zu einem besseren Ausbrand der Schlacke führt. Ersatzweise oder zusätzlich kann Umgebungsluft auch über die Stirnseite 8 des Gehäuses zugeführt werden.The fact that 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. Alternatively or additionally, ambient air can also be supplied via the end face 8 of the housing.
Die Gasströme 9 zwischen den schräg verlaufenden Platten dienen der Windsichtung, d. h., sie nehmen die feinen Anteile mit. Das mit 6 bezeichnete Absaugrohr ist im weiteren Verlauf mit einem Zyklon und anschließend mit einem Filter verbunden, so dass die im Gasstrom mitgetragene Feinfraktion gewonnen und mit der Verbrennungsluft dem Abfallverbrennungsprozess wieder zugeführt werden kann.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 mitgetragene in the gas stream Fine fraction can be recovered and recycled with the combustion air to the waste incineration process.
Claims (18)
- A method for separating residual materials from a thermal waste treatment into at least one fine fraction and one coarse fraction, in which the residual materials are removed from a waste treatment facility in a dry state and separated into at least two fractions, wherein the residual materials are conveyed downward in a cascade-like fashion over at least one step along paths and intermediate free-fall sections by generating a vibratory motion and the fine fraction is during this process removed by means of a gas flow in the region of the free-fall sections, and wherein the coarse fraction except for the fine fraction removed by the air separation travels along the entire cascade-like path, characterized in that the air separation is carried out with ambient air or with gas from a region of the waste treatment or waste incineration facility, in which a significant amount of unused oxygen is still present, in order to induce a superior burn-up rate of the residual materials, in that an escape of dust is prevented by means of a controlled waste gas removal by suction during the generation of the gas flow for the air separation, and in that the waste air from the air separation is returned to the incineration facility.
- The method according to Claim 1, characterized in that the paths are arranged in an inclined fashion.
- The method according to Claim 1 or 2, characterized in that the residual materials are conveyed downward over several steps.
- The method according to one of the preceding claims, characterized in that the fine fraction is also removed by means of a gas flow in the region of the vibratory motion.
- The method according to one of the preceding claims, characterized in that the gas flow extends transverse to the free-fall direction.
- The method according to one of the preceding claims, characterized in that the gas flow extends opposite to the vibratory conveying motion.
- The method according to one of the preceding claims, characterized in that the air separation is carried out with a controllable gas velocity between 2 and 10 m/s, preferably between 3 and 5 m/s, in the free-fall sections and between the vibratory conveying sections.
- The method according to one of the preceding claims, characterized in that the gas flow is after the air separation initially fed to a cyclone separation and then preferably to a filtering process.
- The method according to one of the preceding claims, characterized in that the fine fraction removed by means of the air separation is returned to the thermal waste treatment.
- The method according to one of the preceding claims, characterized in that the waste air from the air separation is returned to the incineration facility.
- The method according to one of the preceding claims, characterized in that different flow velocities are adjusted between the individual conveying plates.
- A device for separating residual materials from a thermal waste treatment into at least one fine fraction and one coarse fraction, with means for generating a gas flow for an air separation and with a housing (1) that is supported on vibratory elements (2) and features several plates (3.1 - 3.5) that are arranged underneath one another and offset in an inclined fashion, wherein the housing is equipped with means for generating a vibratory motional component that extends in the direction of the plates (3.1 - 3.5) arranged in a downwardly inclined and offset fashion, characterized in that the plates (3.1 - 3.5) are connected to the housing (1) on their lateral edges and the gas flow extends transverse to the free-fall direction and opposite to the vibratory conveying motion.
- The device according to Claim 12, characterized in that the plates (3.1 - 3.5) are connected to the housing (1) such that their incline is adjustable.
- The device according to Claim 12 for 13, characterized by at least one suction pipe on the side of the housing (1) that lies opposite of the discharge side.
- The device according to one of Claims 12 to 14, characterized by a preferably controllable inlet opening for a gas that can be conveyed between the plates (3.1 - 3.5) for the air separation.
- The device according to one of Claims 12 to 15, characterized by a feed device for dry residual materials of the waste treatment facility.
- The device according to one of Claims 12 to 16, characterized in that a cyclone and preferably a filter are inserted into the suction path downstream of the housing (1).
- The device according to one of Claims 12 to 17, characterized in that a controllable inlet for the gas used for the air separation is connected to a region of the waste treatment facility, in which a significant amount of unused oxygen is still present.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL07012149T PL1882529T3 (en) | 2006-07-26 | 2007-06-21 | Method and device for separating residual materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006035260A DE102006035260A1 (en) | 2006-07-26 | 2006-07-26 | Method and device for separating residues |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1882529A1 EP1882529A1 (en) | 2008-01-30 |
| EP1882529B1 true EP1882529B1 (en) | 2014-10-29 |
Family
ID=38582261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07012149.6A Active EP1882529B1 (en) | 2006-07-26 | 2007-06-21 | Method and device for separating residual materials |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US7971724B2 (en) |
| EP (1) | EP1882529B1 (en) |
| JP (1) | JP5618114B2 (en) |
| CA (1) | CA2590890C (en) |
| DE (1) | DE102006035260A1 (en) |
| DK (1) | DK1882529T3 (en) |
| ES (1) | ES2523584T3 (en) |
| PL (1) | PL1882529T3 (en) |
| PT (1) | PT1882529E (en) |
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| EP2778523B1 (en) | 2013-03-14 | 2019-06-19 | Hitachi Zosen Inova AG | Slag processing device |
| PL232821B1 (en) | 2013-11-26 | 2019-07-31 | Czech Adam Przed Obrotu Surowcami Wtornymi Hermex | Equipment for cleaning and grain classification of small metallurgical discards and method of cleaning and grain classification of small metallurgical discards |
| KR101398874B1 (en) | 2014-01-24 | 2014-05-27 | (주)제이엠테크 | Pneumatic separating apparatus for aluminium granule |
| CN104368529A (en) * | 2014-11-06 | 2015-02-25 | 昆山金盟塑料薄膜有限公司 | Plastic particle dedusting system |
| GB2550369B (en) * | 2016-05-17 | 2021-10-20 | Turbo Screen International Ltd | Sorting waste materials |
| PT3252377T (en) * | 2016-05-30 | 2020-06-02 | Martin Gmbh Fuer Umwelt Und Energietechnik | Method for processing slag of a combustion device |
| DE102016006368A1 (en) | 2016-05-30 | 2017-11-30 | Martin GmbH für Umwelt- und Energietechnik | Process for treating slag of a combustion device |
| CN108787452B (en) * | 2018-07-26 | 2024-04-02 | 遵义华清塑料制品有限公司 | Negative pressure separation equipment for plastic woven waste |
| CN110153011B (en) * | 2019-05-31 | 2020-10-02 | 安徽省正宇粮食机械有限公司 | Environment-friendly grain dust removal equipment |
| CN111530746B (en) * | 2020-05-15 | 2023-12-22 | 河南威猛振动设备股份有限公司 | Vibration separator and separation method |
| CN112934700A (en) * | 2021-01-13 | 2021-06-11 | 江西华汾粮油实业有限公司 | High-efficient purification and filtration device of rice processing |
| CN114054350B (en) * | 2021-11-11 | 2023-10-27 | 贵州香腾绿色食品加工有限公司 | Rice production and processing equipment and rice production and processing technology |
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- 2006-07-26 DE DE102006035260A patent/DE102006035260A1/en not_active Ceased
-
2007
- 2007-05-30 CA CA2590890A patent/CA2590890C/en active Active
- 2007-06-11 US US11/811,559 patent/US7971724B2/en active Active
- 2007-06-21 PT PT70121496T patent/PT1882529E/en unknown
- 2007-06-21 ES ES07012149.6T patent/ES2523584T3/en active Active
- 2007-06-21 DK DK07012149.6T patent/DK1882529T3/en active
- 2007-06-21 PL PL07012149T patent/PL1882529T3/en unknown
- 2007-06-21 EP EP07012149.6A patent/EP1882529B1/en active Active
- 2007-07-19 JP JP2007188782A patent/JP5618114B2/en active Active
-
2011
- 2011-03-29 US US13/065,740 patent/US8251226B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US8251226B2 (en) | 2012-08-28 |
| US20080023374A1 (en) | 2008-01-31 |
| ES2523584T3 (en) | 2014-11-27 |
| DK1882529T3 (en) | 2014-11-24 |
| PL1882529T3 (en) | 2015-01-30 |
| JP5618114B2 (en) | 2014-11-05 |
| US7971724B2 (en) | 2011-07-05 |
| DE102006035260A1 (en) | 2008-01-31 |
| CA2590890A1 (en) | 2008-01-26 |
| US20110180460A1 (en) | 2011-07-28 |
| PT1882529E (en) | 2014-11-17 |
| JP2008043942A (en) | 2008-02-28 |
| EP1882529A1 (en) | 2008-01-30 |
| CA2590890C (en) | 2014-04-08 |
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