EP2608888B1 - Bulk goods cleaning system - Google Patents

Bulk goods cleaning system Download PDF

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Publication number
EP2608888B1
EP2608888B1 EP10768383.1A EP10768383A EP2608888B1 EP 2608888 B1 EP2608888 B1 EP 2608888B1 EP 10768383 A EP10768383 A EP 10768383A EP 2608888 B1 EP2608888 B1 EP 2608888B1
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EP
European Patent Office
Prior art keywords
bulk material
arrangement
water
cleaning
contaminated
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EP10768383.1A
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German (de)
French (fr)
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EP2608888A1 (en
Inventor
Ferdinand Doppstadt
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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
    • 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
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/005—Transportable screening plants
    • 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • 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
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays

Definitions

  • Bulk material in particular sand, granules or gravel, is frequently used as filter material, for example in sewage treatment plants. By filtering the bulk material is contaminated. Also in road construction or in the oil industry bulk material is used, which is polluted in various ways. Contaminated materials to which the present invention applies also include oil sludges. The dirt or the impurity are often very difficult to separate using chemicals from the bulk material. This causes high costs for cleaning. Alternatively, the contaminated bulk material is no longer used and only final storage.
  • German Utility Model DE 298 24 791 U1 further discloses an arrangement for sand separation by density gradients. Through the sand mixture fine bubble air is bubbled. This sand store can take over the task of an upstream sand separator.
  • the EP 0 613 722 A1 describes a method and apparatus for separating water and solids, particularly for recovering reusable sand.
  • the contaminated sand is introduced into a master sump and transferred after the supply of water by means of a conveyor in a screening device and thereby separated from large solids.
  • the remaining water-solid mixture is fed via a second conveyor to a hydrocyclone and then to a vortex sorter.
  • a dewatering device By means of a dewatering device, the remaining separation of the sand takes place from the water.
  • the DE 198 10 866 A1 describes a plant, using a demineralization, for the treatment of a fine substance mixture with mineral, organic and aqueous components.
  • the core of the system is a turntable with a feeder for the fine material mixture directed towards the center of the turntable.
  • the fine material mixture is thrown off by the rotation of the turntable and collected in a collecting device. Further treatment of the collected liquids and sludges is followed by demineralization.
  • METHA First Large Facility for the Treatment of Port Sediments - deals with the treatment of sediment in flowing waters.
  • the separation of the contaminated silt from sand and other constituents takes place in three steps: Pre-separation by rotating drum sieves causes coarse separation of foreign substances.
  • the mixture of substances is subsequently prepared by hydroclassification.
  • An upstream sorter then separates the pollutants from sand. Drainage of the sand takes place via drainage sieves.
  • the patent DE 199 07 513 C1 discloses a process for purifying contaminated granular materials by attrition, ie by stirring in a water slurry.
  • the DE 41 40 845 1 describes a method and apparatus for removing contaminants from contaminated soils.
  • the contaminated soil is digested by means of a high-pressure water jet pipe and then further processed in a classifying device into individual grain fractions.
  • the final cleaning is done in a flotation device for separating the liquid from the solid components.
  • the publication DE 196 21 892 A1 discloses a device for in-situ cleaning of sands, for example of sandboxes, sands of beaches, ect.
  • the sand is cleaned on site by a washing process and subsequent classification.
  • the cleaning system consists of several plant components that have been installed on a mobile unit.
  • the US 2004 0082 828 A1 describes a method of decontaminating soil containing inorganic contaminants.
  • a vibrating chute by means of a vibrating chute, the inorganic impurities, which are contained in a coarse fraction in particle form, are dissolved out.
  • the inorganic impurities, which are contained in a particle form in an intermediate portion are removed by means of a spiral chute.
  • a multiple gravity separator by means of a multiple gravity separator, the inorganic impurities in particle form, which are contained in a fine fraction, separated.
  • an arrangement for cleaning soiled bulk material comprises a plurality of processing stages and a receiving and conveying device for receiving and conveying the soiled bulk material within the arrangement.
  • a mechanical separation unit support granules and water are mixed with the soiled bulk material by a supply and mixing device.
  • a screening device is provided with a vibrating screen for separating coarse-grained constituents, in particular the supporting grains.
  • the arrangement comprises a centrifuge for separating impurities from the bulk material, an upflow classifier for flowing dissolved suspended matter out of the bulk material and a dewatering agent for separating the cleaned bulk material from the water contained therein.
  • the AT 398 914 B describes a method and apparatus for treating ballast.
  • Track ballast to be cleaned is applied to a vibrating or vibrating screen via a conveyor.
  • fines are screened out.
  • further fines are separated with compressed air.
  • water or water vapor is applied at high pressure to the track ballast to be cleaned.
  • the cleaned track ballast passes through a chute into a receptacle.
  • the object of the invention is therefore to avoid the above-mentioned and other existing disadvantages of the prior art and to provide an environmentally friendly device that allows the cleaning of very strong, eg. With oil residues, soiled bulk material.
  • the invention is based on a principle to clean the bulk material with hot steam under high pressure. An efficient removal of greasy soiling is possible.
  • the effectiveness of a steam cleaning depends mainly on the temperature and the pressure of the steam jet. In a hot steam cleaning usually temperatures of about 300 ° C are generated.
  • the cleaning of contaminated bulk material by hot water vapor relies solely on mechanical cleaning stages, which are environmentally friendly in contrast to the use of chemicals.
  • the arrangement for cleaning bulk material consists of mechanical components that are arranged and combined in such a way that the result of the cleaning is optimal without unduly burdening the environment.
  • the arrangement consists of several processing stages. Via conveyor belts, the respective material is transported from processing stage to processing stage.
  • a first processing stage support grains with water are added to the contaminated bulk material in the feed and mixing device. Due to the added support grain, the impurities are crushed into small components, shot to pieces or dissolved.
  • a first high-pressure water generator can generate hot steam. This water vapor is fed at high pressure into the feed and mixing device.
  • the arrangement can also be chosen so that both support grains, and hot steam is fed under high pressure to the bulk material.
  • the bulk material, support grains and water mixture is conveyed onto a vibrating screen.
  • a second high-pressure water generator is provided for the screening device. Hot steam is fed under high pressure to the polluted bulk material on the vibrating screen.
  • the contaminated bulk material is irradiated with hot water via water nozzles.
  • One or more water nozzles can be swiveled.
  • the hot water jet accelerates the sieving process.
  • the grains of bulk material that pass through the openings of the screen are rinsed through it more quickly and returned to the feeding and mixing device. Oversizes or larger contaminants can also be screened out here and, for example, discharged via a conveyor belt and thus removed from the further washing process.
  • the openings of the vibrating screen variable in size.
  • the grain size can still be selected, which should pass through the sieve.
  • a centrifuge In a third processing stage, the now present mixture from the second processing stage is fed to a centrifuge.
  • the centrifuge separates a large part of the bulk material from water and contaminants due to their different density.
  • the separated water with the dissolved impurities is passed for example in an intermediate container.
  • the bulk material falls into an upflow classifier placed under the centrifuge.
  • the upstream classifier separates by its functional principle bulk material from suspended matter.
  • the suspended matter is thereby rinsed out by water and also passed into the intermediate container.
  • the rinsed bulk material from the Aufströmklassierer is placed in a fifth processing stage on a Schwingentskysserer. This dewatered the bulk material so that the bulk material can be removed via a conveyor belt from the arrangement and promoted to a heap. Water which is separated in this process also flows into the intermediate container.
  • a further advantageous embodiment of the arrangement according to the invention for cleaning soiled bulk material is obtained by providing a device for dewatering sludge produced during the cleaning process.
  • This sludge dewatering apparatus may be added to the arrangement as the sixth processing stage.
  • the contaminants, suspended matter and process water fed into the intermediate container are pumped off via a pumping station and fed to a sludge press.
  • a sludge press In this mud press, water is separated from the remaining ingredients, i. Pollution and suspended matter, isolated.
  • the cleaned water will be returned to the bulk material washing.
  • the squeezed mud cake can be disposed of.
  • the arrangement according to the invention is designed to be mobile for the purpose of cleaning soiled bulk material.
  • Wastewater treatment plants do not require continuous cleaning of bulk material.
  • the cost of such a cleaning arrangement are not worthwhile, especially for small sewage treatment plants. Therefore, this mobility of the arrangements serves to be able to always provide the arrangement for the cleaning of soiled bulk material at its place of use. For example, the cost of such a facility may be shared by smaller communities.
  • the arrangement for cleaning soiled bulk material is formed as a unit. This measure makes it compact and can therefore be used practically anywhere.
  • the arrangement is formed mobile with a transport unit.
  • the transport unit may, for example, be designed as a low loader, whereupon the arrangement according to the invention is largely permanently installed. In this way, the arrangement can be moved quickly everywhere.
  • Fig. 1 is designated 10 an inventive arrangement for the purification of contaminated bulk material.
  • the arrangement is in the form of a unit a semi-trailer 11 for a semitrailer, not shown, whereby the arrangement is mobile. Wheels 13 of the trailer 11 are to be seen beginning.
  • the contaminated bulk material is introduced into a funnel 12 designed as a receptacle.
  • the contaminated bulk material falls through the hopper 12 on a conveyor belt 14, 16, 22, 29, 34.
  • the conveyor belt 14, 16, 22, 29, 34 consists of several components and transports the contaminated and later cleaned bulk material, as well as the contamination between the individual processing stages.
  • About the conveyor belts 16 support grains are fed to the conveyor belt 14 the polluted bulk material.
  • This mixture enters a mixing device 18 of a mechanical separation unit.
  • a first high-pressure water generator 20 irradiated with its hot water jet, the mixture of supporting grains and contaminated bulk material. Due to the added supporting grain, the impurities are broken down into small components, shot up or dissolved. Alternatively, the bulk material can also be cleaned only with hot steam under high pressure.
  • the conveyor belt 22 below the mixing device 18 transports the dissolved mixture of soiled bulk material, support grains and water onto a vibrating screen 24 of a screening device 25.
  • a second, not visible in this figure, high-pressure generator generates one or more hot water jets and / or water vapor with which the soiled bulk material is irradiated on the vibrating screen 24 to speed up the screening process.
  • Openings 26 of the vibrating screen 24 are kept variable in size in order to be able to separate different particle sizes. The size of the openings 26 is chosen in particular so that the support grains are separated and fall from the vibrating screen 24 on the conveyor belts 16. From there they will return to the process, i. fed to the conveyor 14 the soiled bulk material, for mixing.
  • the contaminated bulk material is now supplied to a centrifuge 28 with a pump station, not shown.
  • a centrifuge 28 In the centrifuge 28, a large part of the bulk material is separated from water and impurities. Another part of the screened material is deposited on conveyor belt 29 at a location 31. L-shaped Stones 33 serve to delimit and prevent impurities from getting under the machine.
  • the separated water with proportions of impurities is passed in an intermediate container, not shown.
  • the bulk material with the residues of impurities falls into an upflow classifier 30 set up under the centrifuge 28.
  • the upflow classifier 30 separates the bulk material of suspended matter by its functional principle.
  • the suspended matter is thereby rinsed out by water and also passed into the intermediate container.
  • the thus cleaned bulk material is rinsed out of the Aufströmklassierer 30 and placed on a trained as Schwingentskyeerer dehydrating agent. In the Schwingentskyerer the bulk material is withdrawn more water. Subsequently, the clean bulk material is transported via the conveyor belt 34 and accumulated at a location 36 for further use.
  • FIG. 2 is opposite FIG. 1 the mixing device 18 is shown enlarged as a detailed drawing with the first high-pressure water generator 20.
  • the mixing device 18 has in this embodiment, a cuboid frame 38, in which on the upper side designed as a funnel 40 supply is provided.
  • the mixture of soiled bulk material with the support grains is ground by the hot water jet and / or water vapor of the high-pressure water generator 20.
  • the mixture is thus dissolved and falls onto the conveyor belt 22, which finally conveys the mixture to the vibrating screen 24.
  • Below the conveyor belt 22 is a collecting container 42.
  • the collecting container 42 traps material and water, which does not reach the conveyor belt 22.
  • FIG. 3 is the Aufströmklassierer 30 to see an enlarged detail view.
  • the contaminated bulk material is introduced in those Aufströmklassierer 30, which is also located in a cuboid frame 44.
  • 46 denotes the edge
  • 48 denotes the interior of the inflow classifier 30.
  • Water is flowed from below into the interior 48 of the Aufströmklassierers 30, so that the lighter than the bulk of dirt particles flow upwards and are flushed away with the water over the upper edge 46.

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  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Anordnung zur Reinigung von verschmutztem Schüttgut, enthaltend:

  1. a) eine Aufnahme- und Fördereinrichtung zum Aufnehmen und zum Fördern des verschmutzten Schüttguts innerhalb der Anordnung,
  2. b) eine mechanische Trenneinheit zur mechanischen Trennung des Schüttguts mit einer Zufuhr- und Mischvorrichtung zur Zuführung und Durchmischung von Stützkörnern und Wasser zu dem verschmutzten Schüttgut,
  3. c) eine Siebvorrichtung mit einem Schwingsieb zum Abscheiden grobkörniger Bestandteile, insbesondere der Stützkörner,
  4. d) eine Zentrifuge zum Abscheiden von Verunreinigungen vom Schüttgut,
  5. e) einen Aufströmklassierer zum Aufströmen von gelösten Schwebestoffen aus dem Schüttgut,
  6. f) Entwässerungsmittel zur Trennung des gesäuberten Schüttguts und des darin enthaltenen Wassers.
The invention relates to an arrangement for the purification of contaminated bulk material, comprising:
  1. a) a receiving and conveying device for receiving and conveying the soiled bulk material within the arrangement,
  2. b) a mechanical separation unit for the mechanical separation of the bulk material with a supply and mixing device for the supply and mixing of support grains and water to the polluted bulk material,
  3. c) a screening device with a vibrating screen for separating coarse-grained constituents, in particular the supporting grains,
  4. d) a centrifuge for separating impurities from the bulk material,
  5. e) a Aufströmklassierer for influx of dissolved suspended solids from the bulk material,
  6. f) dehydrating agent for separating the cleaned bulk material and the water contained therein.

Stand der TechnikState of the art

Schüttgut, insbesondere Sand, Granulat oder Kies, wird häufig als Filtermaterial, wie beispielsweise in Kläranlagen, eingesetzt. Durch die Filterung wird das Schüttgut verunreinigt. Auch beim Straßenbau oder in der Ölindustrie wird Schüttgut verwendet, welches auf unterschiedlichste Weise verschmutzt ist. Unter verunreinigte Materialien, für die vorliegende Erfindung Anwendung findet, fallen auch Ölschlämme. Der Schmutz beziehungsweise die Verunreinigung lassen sich häufig nur sehr schwer unter Einsatz von Chemikalien von dem Schüttgut trennen. Dies verursacht hohe Kosten bei der Reinigung. Alternativ wird das verunreinigte Schüttgut überhaupt nicht mehr verwendet und nur noch endgelagert.Bulk material, in particular sand, granules or gravel, is frequently used as filter material, for example in sewage treatment plants. By filtering the bulk material is contaminated. Also in road construction or in the oil industry bulk material is used, which is polluted in various ways. Contaminated materials to which the present invention applies also include oil sludges. The dirt or the impurity are often very difficult to separate using chemicals from the bulk material. This causes high costs for cleaning. Alternatively, the contaminated bulk material is no longer used and only final storage.

Es sind verschiedene Anordnungen zur Reinigung von verschmutztem Schüttgut oder vergleichbarem Gut bekannt.There are various arrangements for the purification of dirty bulk or similar good known.

So beschreibt die deutsche Patentschrift DE 40 34 227 C2 ein Verfahren zum Aufbereiten von Ablagerungen, insbesondere von Sedimenten, insbesondere von Sedimenten bei der Gewässerausbaggerung, von Abraummaterial oder dergleichen, bei dem das zu behandelnde Material in aufeinander folgenden Stufen klassiert und von Schadstoffen gereinigt wird. Die gewonnenen Sedimente kommen dabei auf ein Sieb mit hochfrequenter Schwingung. Das passierte Gut wird einem Schwertwäscher zugeführt und gelangt danach in einen Siebzyklon, der mit einer Waschtrommel, sowie einem Schwingklassierer eine erste Trennstufe bildet. In einer zweiten Trennstufe werden organische und anorganische Bestandteile einer Zyklonanlage zugeführt, die die Abscheidung des Sandes durch einen Schwertrübsortierer über einen Schwingentwässerer einem Sandlager zuführt.This is how the German patent specification describes DE 40 34 227 C2 a method for treating deposits, in particular sediments, in particular sediments in the water drainage, waste material or the like, in which the material to be treated is classified in successive stages and cleaned of pollutants. The collected sediments arrive on a screen with high-frequency vibration. The passed material is fed to a sword scrubber and then passes into a screening cyclone, which forms a first separation stage with a washing drum and a vibrating classifier. In a second separation stage, organic and inorganic constituents are fed to a cyclone plant, which feeds the deposition of the sand through a Schwergübsortierer a Schwingentwässerer a sand store.

Die deutsche Gebrauchsmusterschrift DE 298 24 791 U1 offenbart ferner eine Anordnung zur Sandtrennung durch Dichtegradienten. Durch das Sandgemisch wird feinblasige Luft geperlt. Dieses Sandlager kann die Aufgabe eines vorgeschalteten Sandseparators mit übernehmen.The German Utility Model DE 298 24 791 U1 further discloses an arrangement for sand separation by density gradients. Through the sand mixture fine bubble air is bubbled. This sand store can take over the task of an upstream sand separator.

Die EP 0 613 722 A1 beschreibt ein Verfahren und eine Vorrichtung zur Trennung von Wasser und Feststoffen, insbesondere zur Gewinnung von wiederverwendbaren Sand. Dabei wird der verunreinigte Sand in einen Vorlagensumpf eingebracht und nach Zufuhr von Waser mittels einer Fördereinrichtung in eine Siebeinrichtung überführt und dadurch von großen Festkörpern getrennt. Das verbleibende Wasser-Feststoff-Gemisch wird über eine zweite Fördereinrichtung einem Hydrozyklon und anschließend einem Wirbelsichtsortierer zugeführt. Mittels einer Entwässerungsvorrichtung erfolgt die restliche Trennung des Sandes vom Wasser.The EP 0 613 722 A1 describes a method and apparatus for separating water and solids, particularly for recovering reusable sand. In this case, the contaminated sand is introduced into a master sump and transferred after the supply of water by means of a conveyor in a screening device and thereby separated from large solids. The remaining water-solid mixture is fed via a second conveyor to a hydrocyclone and then to a vortex sorter. By means of a dewatering device, the remaining separation of the sand takes place from the water.

Die DE 198 10 866 A1 beschreibt eine Anlage, unter Nutzung einer Demineralisierung, zur Aufbereitung eines Feinstoffgemisches mit mineralischen, organischen und wässrigen Anteilen. Kern der Anlage ist ein Drehteller mit einer auf das Zentrum des Drehtellers gerichteten Zuführung für das Feinstoffgemisch. Das Feinstoffgemisch wird durch die Rotation des Drehtellers abgeschleudert und in einer Sammeleinrichtung aufgefangen. Weitere Aufbereitungen der eingesammelten Flüssigkeiten und Schlämme schließen sich der Demineralisierung an.The DE 198 10 866 A1 describes a plant, using a demineralization, for the treatment of a fine substance mixture with mineral, organic and aqueous components. The core of the system is a turntable with a feeder for the fine material mixture directed towards the center of the turntable. The fine material mixture is thrown off by the rotation of the turntable and collected in a collecting device. Further treatment of the collected liquids and sludges is followed by demineralization.

Die Veröffentlichung METHA- Erste Großanlage zur Aufbereitung von Hafensedimenten-, beschäftigt sich mit der Aufbereitung des Sediments im Fließgewässer. Die Trennung des verunreinigten Schlicks von Sand und anderen Bestandteilen erfolgt in drei Schritten: Eine Vortrennung durch rotierende Trommelsiebe bewirkt eine Grobabtrennung von Fremdstoffen. Zur weiteren Reinigung wird das Stoffgemisch anschließend durch Hydroklassierung aufbereitet. Ein Aufstromsortierer trennt anschließend die Schadstoffe von Sand. Eine Entwässerung des Sandes erfolgt über Entwässerungssiebe.The publication METHA - First Large Facility for the Treatment of Port Sediments - deals with the treatment of sediment in flowing waters. The separation of the contaminated silt from sand and other constituents takes place in three steps: Pre-separation by rotating drum sieves causes coarse separation of foreign substances. For further purification, the mixture of substances is subsequently prepared by hydroclassification. An upstream sorter then separates the pollutants from sand. Drainage of the sand takes place via drainage sieves.

Die Patentschrift DE 199 07 513 C1 offenbart ein Verfahren zur Reinigung verunreinigter körniger Stoffe durch Attrition, d.h. durch Rühren in einer Wasseraufschlämmung.The patent DE 199 07 513 C1 discloses a process for purifying contaminated granular materials by attrition, ie by stirring in a water slurry.

Die DE 41 40 845 1 beschreibt ein Verfahren und eine Vorrichtung zum Entfernen von Verunreinigungen aus kontaminierten Böden. Durch ein Hochdruckwasserstrahlrohr wird der kontaminierte Boden aufgeschlossen und anschließend in einer Klassierungseinrichtung in einzelne Kornfraktionen weiter aufbereitet. Die abschließende Reinigung erfolgt in einer Flotationseinrichtung zum Trennen der flüssigen von den festen Bestandteilen.The DE 41 40 845 1 describes a method and apparatus for removing contaminants from contaminated soils. The contaminated soil is digested by means of a high-pressure water jet pipe and then further processed in a classifying device into individual grain fractions. The final cleaning is done in a flotation device for separating the liquid from the solid components.

Die Offenlegungsschrift DE 196 21 892 A1 offenbart eine Vorrichtung zur In -SituReinigung von Sanden, beispielsweise von Sandkästen, Sanden von Stränden, ect. Der Sand wird vor Ort durch einen Waschvorgang und anschließender Klassierung gereinigt. Die Reinigungsanlage besteht aus mehreren auf eine mobile Einheit monierte Anlagenkomponente.The publication DE 196 21 892 A1 discloses a device for in-situ cleaning of sands, for example of sandboxes, sands of beaches, ect. The sand is cleaned on site by a washing process and subsequent classification. The cleaning system consists of several plant components that have been installed on a mobile unit.

Die US 2004 0082 828 A1 beschreibt eine Verfahren zum Dekontaminieren von Erdreich, das anorganische Verunreinigungen enthält. In einem ersten Schritt werden mittels einer Schüttelrutsche, die anorganischer Verunreinigungen, die in Partikelform in einem Grobanteil enthalten sind, herausgelöst. In einem weiteren Schritt werden mittels einer Wendelrutsche die anorganischer Verunreinigungen, die in Partikelform in einem Zwischenanteil enthalten sind, entfernt. Abschließend werden mittels eines Mehrfach-Schwerkraftseparators die anorganischer Verunreinigungen in Partikelform, die in einem Feinanteil enthalten sind, separiert. Durch diese Methode werden die anorganischer Verunreinigungen in den Grob-, Zwischen- und Feinanteilen weitestgehend eliminiert.The US 2004 0082 828 A1 describes a method of decontaminating soil containing inorganic contaminants. In a first step, by means of a vibrating chute, the inorganic impurities, which are contained in a coarse fraction in particle form, are dissolved out. In a further step, the inorganic impurities, which are contained in a particle form in an intermediate portion, are removed by means of a spiral chute. Finally, by means of a multiple gravity separator, the inorganic impurities in particle form, which are contained in a fine fraction, separated. By this method, the inorganic impurities in the coarse, intermediate and fines are largely eliminated.

Nachteil der bekannten Anordnungen zur Reinigung von verschmutztem Sand ist, dass das Ergebnis häufig nicht ausreichend gut ist. Es haften oft noch Verschmutzungsreste an dem Sand an. Solche Verschmutzungen lassen sich derzeit bestenfalls mit Chemikalien, wie Lösungsmittel, von dem Sand lösen. Die Verwendung von Chemikalien ist jedoch nicht nur kostenintensiv, sondern kann auch die Umwelt beeinträchtigen.Disadvantage of the known arrangements for cleaning dirty sand is that the result is often not sufficiently good. There are often still dirt left on the sand. At the moment, such contaminants can be removed from the sand with chemicals such as solvents. However, the use of chemicals is not only costly but can also affect the environment.

In der WO 2010/043 221 A1 wird eine Anordnung zum Reinigen von verschmutztem Schüttgut offenbart. Die Anordnung umfasst mehrere Bearbeitungsstufen und eine Aufnahme- und Fördereinrichtung zum Aufnehmen und zum Fördern des verschmutzten Schüttguts innerhalb der Anordnung. Zunächst werden in einer mechanischen Trenneinheit Stützkörnern und Wasser durch eine Zufuhr- und Mischvorrichtung mit dem verschmutzten Schüttgut vermischt. Anschließend ist eine Siebvorrichtung mit einem Schwingsieb zum Abscheiden grobkörniger Bestandteile, insbesondere der Stützkörner vorgesehen. Weiterhin enthält die Anordnung eine Zentrifuge zum Abscheiden von Verunreinigungen vom Schüttgut, ein Aufströmklassierer zum Aufströmen von gelösten Schwebestoffen aus dem Schüttgut und ein Entwässerungsmittel zum Trennen des gesäuberten Schüttguts von dem darin enthaltenen Wasser.In the WO 2010/043 221 A1 an arrangement for cleaning soiled bulk material is disclosed. The arrangement comprises a plurality of processing stages and a receiving and conveying device for receiving and conveying the soiled bulk material within the arrangement. First, in a mechanical separation unit, support granules and water are mixed with the soiled bulk material by a supply and mixing device. Subsequently, a screening device is provided with a vibrating screen for separating coarse-grained constituents, in particular the supporting grains. Furthermore, the arrangement comprises a centrifuge for separating impurities from the bulk material, an upflow classifier for flowing dissolved suspended matter out of the bulk material and a dewatering agent for separating the cleaned bulk material from the water contained therein.

Die AT 398 914 B beschreibt ein Verfahren und eine Vorrichtung zum Behandeln von Gleisschotter. Zu reinigender Gleisschotter wird über eine Fördereinrichtung auf ein Schwing- oder Rüttelsieb aufgebracht. In einer ersten Zone des Siebs werden Feinanteile ausgesiebt. In einer zweiten Zone werden mit Druckluft weitere Feinanteile abgetrennt. Schließlich wird in einer dritten Zone des Siebs Wasser oder Wasserdampf mit hohem Druck auf den zu reinigenden Gleisschotter aufgebracht. Der gereinigte Gleisschotter gelangt über eine Rutsche in ein Aufnahmebehältnis.The AT 398 914 B describes a method and apparatus for treating ballast. Track ballast to be cleaned is applied to a vibrating or vibrating screen via a conveyor. In a first zone of the screen fines are screened out. In a second zone further fines are separated with compressed air. Finally, in a third zone of the screen, water or water vapor is applied at high pressure to the track ballast to be cleaned. The cleaned track ballast passes through a chute into a receptacle.

Offenbarung der ErfindungDisclosure of the invention

Aufgabe der Erfindung ist es daher, die oben genannten und andere bestehende Nachteile des Standes der Technik zu vermeiden und eine umweltfreundliche Vorrichtung zu schaffen, die die Reinigung auch von sehr stark, bspw. mit Ölrückständen, verschmutztem Schüttgut ermöglicht.The object of the invention is therefore to avoid the above-mentioned and other existing disadvantages of the prior art and to provide an environmentally friendly device that allows the cleaning of very strong, eg. With oil residues, soiled bulk material.

Erfindungsgemäß wird die Aufgabe mit der Anordnung der eingangs genannten Art zur Reinigung von verschmutztem Schüttgut gelöst durch

  • g) einen Wasserdampfgenerator, welcher das Schüttgut mit Wasserdampf bearbeitet, wobei
  • h) ein erster Wasserhochdruckgenerator heißes Wasser und/oder Wasserdampf mit Hochdruck in die Zufuhr- und Mischvorrichtung führt, und
  • i) ein zweiter Wasserhochdruckgenerator für die Siebvorrichtung vorgesehen ist, welcher das verschmutzte Schüttgut auf dem Schwingsieb mit heißem Wasser und/oder Wasserdampf unter Hochdruck bestrahlt.
According to the invention the object is achieved with the arrangement of the type mentioned for the purification of contaminated bulk material
  • g) a steam generator, which processes the bulk material with water vapor, wherein
  • h) a first high-pressure water generator leads hot water and / or high-pressure steam into the supply and mixing device, and
  • i) a second high-pressure water generator is provided for the screening device, which irradiates the soiled bulk material on the vibrating screen with hot water and / or steam under high pressure.

Die Erfindung beruht auf einem Prinzip, das Schüttgut mit heißem Wasserdampf unter Hochdruck zu reinigen. Dabei ist ein effizientes Entfernen besonders von fettigen Verschmutzungen möglich. Die Wirksamkeit einer Dampfreinigung hängt vor allem von der Temperatur und dem Druck des Wasserdampfstrahls ab. Bei einer Heißdampfreinigung werden üblicherweise Temperaturen von über 300 °C erzeugt. Die Reinigung von verschmutztem Schüttgut durch heißen Wasserdampf setzt dabei allein auf mechanische Reinigungsstufen, die im Gegensatz zur Verwendung von Chemikalien umweltfreundlich sind.The invention is based on a principle to clean the bulk material with hot steam under high pressure. An efficient removal of greasy soiling is possible. The effectiveness of a steam cleaning depends mainly on the temperature and the pressure of the steam jet. In a hot steam cleaning usually temperatures of about 300 ° C are generated. The cleaning of contaminated bulk material by hot water vapor relies solely on mechanical cleaning stages, which are environmentally friendly in contrast to the use of chemicals.

Die Anordnung zur Reinigung von Schüttgut besteht aus mechanischen Komponenten, die so angeordnet und kombiniert sind, dass das Ergebnis der Reinigung optimal ausfällt, ohne die Umwelt übermäßig zu belasten. Die Anordnung besteht aus mehreren Bearbeitungsstufen. Über Förderbänder wird das jeweilige Gut von Bearbeitungsstufe zu Bearbeitungsstufe transportiert.The arrangement for cleaning bulk material consists of mechanical components that are arranged and combined in such a way that the result of the cleaning is optimal without unduly burdening the environment. The arrangement consists of several processing stages. Via conveyor belts, the respective material is transported from processing stage to processing stage.

In einer ersten Bearbeitungsstufe wird in die Zufuhr- und Mischvorrichtung dem verunreinigten Schüttgut Stützkörner mit Wasser hinzugefügt. Durch das beigemengte Stützkorn werden die Verunreinigungen in kleine Bestandteile zerrieben, zerschossen oder aufgelöst. Anstelle der Stützkörner kann ein erster Wasserhochdruckgenerator heißen Wasserdampf erzeugen. Dieser Wasserdampf wird mit Hochdruck in die Zufuhrund Mischvorrichtung geführt. Die Anordnung kann aber auch so gewählt werden, dass sowohl Stützkörner, als auch heißer Wasserdampf unter Hochdruck dem Schüttgut zugeführt wird. Durch diese Maßnahme wird das Lösen der Verunreinigung vom Schüttgut durch die heißen Wasserstrahlkräfte und die umher wirbelnden Stützkörner erheblich verbessert.In a first processing stage, support grains with water are added to the contaminated bulk material in the feed and mixing device. Due to the added support grain, the impurities are crushed into small components, shot to pieces or dissolved. Instead of the supporting grains, a first high-pressure water generator can generate hot steam. This water vapor is fed at high pressure into the feed and mixing device. The arrangement can also be chosen so that both support grains, and hot steam is fed under high pressure to the bulk material. By this measure, the release of the contamination from the bulk material by the hot water jet forces and the swirling support grains around is considerably improved.

In einer zweiten Bearbeitungsstufe wird das Schüttgut-, Stützkörner und Wassergemisch auf ein Schwingsieb befördert. Ein zweiter Wasserhochdruckgenerator ist für die Siebvorrichtung vorgesehen. Dabei wird dem verschmutzte Schüttgut auf dem Schwingsieb heißer Wasserdampf unter Hochdruck zugeführt. Hier wird beispielsweise über Wasserdüsen das verunreinigte Schüttgut mit heißem Wasser bestrahlt. Eine oder mehrere Wasserdüsen können dabei geschwenkt werden. Der heiße Wasserstrahl beschleunigt den Siebvorgang. Die Körner des Schüttguts, die durch die Öffnungen des Siebes passen, werden dort schneller hindurch gespült und wieder der Zufuhr- und Mischvorrichtung zugeführt. Übergrößen oder größere Störstoffe können hier ebenfalls ausgesiebt und beispielsweise über ein Förderband ausgetragen und dem weiteren Waschprozess somit entzogen werden.In a second processing stage, the bulk material, support grains and water mixture is conveyed onto a vibrating screen. A second high-pressure water generator is provided for the screening device. Hot steam is fed under high pressure to the polluted bulk material on the vibrating screen. Here, for example, the contaminated bulk material is irradiated with hot water via water nozzles. One or more water nozzles can be swiveled. The hot water jet accelerates the sieving process. The grains of bulk material that pass through the openings of the screen are rinsed through it more quickly and returned to the feeding and mixing device. Oversizes or larger contaminants can also be screened out here and, for example, discharged via a conveyor belt and thus removed from the further washing process.

In einer weiteren besonderen Ausgestaltung besteht noch die Möglichkeit, die Öffnungen des Schwingsiebs in ihrer Größe variabel auszubilden. Dadurch kann die Korngröße noch ausgewählt werden, welche durch das Sieb gelangen soll.In a further particular embodiment, it is still possible to make the openings of the vibrating screen variable in size. As a result, the grain size can still be selected, which should pass through the sieve.

In einer dritten Bearbeitungsstufe wird das nun vorliegende Gemisch aus der zweiten Bearbeitungsstufe einer Zentrifuge zugeführt. Die Zentrifuge trennt einen großen Teil des Schüttgutes von Wasser und Verunreinigungen aufgrund ihrer unterschiedlichen Dichte. Das getrennte Wasser mit den darin gelösten Verunreinigungen wird beispielsweise in einen Zwischenbehälter geleitet.In a third processing stage, the now present mixture from the second processing stage is fed to a centrifuge. The centrifuge separates a large part of the bulk material from water and contaminants due to their different density. The separated water with the dissolved impurities is passed for example in an intermediate container.

In einer vierten Bearbeitungsstufe fällt das Schüttgut mit den Resten an Verunreinigung in einen unter der Zentrifuge aufgestellten Aufströmklassierer. Der Aufströmklassierer trennt durch sein Funktionsprinzip Schüttgut von Schwebestoffen. Die Schwebestoffe werden hierbei durch Wasser ausgespült und ebenfalls in den Zwischenbehälter geleitet.In a fourth processing stage, the bulk material, with the remains of contamination, falls into an upflow classifier placed under the centrifuge. The upstream classifier separates by its functional principle bulk material from suspended matter. The suspended matter is thereby rinsed out by water and also passed into the intermediate container.

Das ausgespülte Schüttgut aus dem Aufströmklassierer wird in einer fünften Bearbeitungsstufe auf einen Schwingentwässerer gegeben. Dieser entwässert das Schüttgut so, dass das Schüttgut über ein Förderband von der Anordnung abgezogen und auf eine Halde gefördert werden kann. Wasser welches bei diesem Vorgang separiert wird fließt ebenfalls in den Zwischenbehälter.The rinsed bulk material from the Aufströmklassierer is placed in a fifth processing stage on a Schwingentwässerer. This dewatered the bulk material so that the bulk material can be removed via a conveyor belt from the arrangement and promoted to a heap. Water which is separated in this process also flows into the intermediate container.

Praktisch alle Stoffe die dem Reinigungsvorgang dieser Anordnung zugesetzt werden, werden separiert und lassen sich, mit Ausnahme der Verunreinigung, erneut dem Prozess zuführen. Die Anordnung dient daher einer besonders umweltschonenden Reinigung von verschmutztem Schüttgut.Virtually all substances that are added to the cleaning process of this arrangement are separated and can be re-fed to the process, with the exception of the contaminant. The arrangement therefore serves a particularly environmentally friendly cleaning of contaminated bulk material.

Eine weitere vorteilhafte Ausgestaltung der erfindungsgemäßen Anordnung zur Reinigung von verschmutztem Schüttgut ergibt sich dadurch, dass eine Vorrichtung zur Entwässerung von bei der Reinigung entstandenem Schlamm vorgesehen ist. Diese Vorrichtung zur Entwässerung von Schlamm kann als sechste Bearbeitungsstufe der Anordnung zugefügt werden. Die in den Zwischenbehälter geleiteten Verunreinigungen, Schwebestoffe und Prozesswasser werden über eine Pumpenstation abgepumpt und einer Schlammpresse zugeführt. In dieser Schlammpresse wird Wasser von den restlichen Inhaltsstoffen, d.h. Verunreinigung und Schwebestoffe, getrennt. Das so gesäuberte Wasser wird der Schüttgutwäsche wieder zur Verfügung gestellt. Der ausgepresste Schlammkuchen kann entsorgt werden.A further advantageous embodiment of the arrangement according to the invention for cleaning soiled bulk material is obtained by providing a device for dewatering sludge produced during the cleaning process. This sludge dewatering apparatus may be added to the arrangement as the sixth processing stage. The contaminants, suspended matter and process water fed into the intermediate container are pumped off via a pumping station and fed to a sludge press. In this mud press, water is separated from the remaining ingredients, i. Pollution and suspended matter, isolated. The cleaned water will be returned to the bulk material washing. The squeezed mud cake can be disposed of.

In einer besonderen Variante ist die erfindungsgemäße Anordnung zur Reinigung von verschmutztem Schüttgut mobil ausgebildet. Kläranlagen benötigen nicht kontinuierlich einer Reinigung von Schüttgut. Die Anschaffungskosten für eine solche Reinigungsanordnung sind gerade für kleine Kläranlagen nicht lohnenswert. Daher dient diese Mobilität der Anordnungen dazu, die Anordnung zur Reinigung von verschmutztem Schüttgut immer an ihren Einsatzort schaffen zu können. Die Kosten für eine solche Anlage können beispielsweise von kleineren Kommunen dann geteilt werden.In a particular variant, the arrangement according to the invention is designed to be mobile for the purpose of cleaning soiled bulk material. Wastewater treatment plants do not require continuous cleaning of bulk material. The cost of such a cleaning arrangement are not worthwhile, especially for small sewage treatment plants. Therefore, this mobility of the arrangements serves to be able to always provide the arrangement for the cleaning of soiled bulk material at its place of use. For example, the cost of such a facility may be shared by smaller communities.

Bevorzugterweise ist die Anordnung zur Reinigung von verschmutztem Schüttgut als Einheit ausgebildet. Durch diese Maßnahme lässt sie sich kompakt herstellen und ist damit auch praktisch an jedem Ort einsetzbar.Preferably, the arrangement for cleaning soiled bulk material is formed as a unit. This measure makes it compact and can therefore be used practically anywhere.

Da es sich bei dem verschmutzten Schüttgut oft um erhebliche Mengen handelt, sind die Transportkosten zu der Reinigungsanordnung recht hoch. Um eine vielfältigen Einsatz an verschiedenen Orten zu erreichen, ohne die Anlage für einen Transport zu zerlegen, ist die Anordnung mobil mit einer Transporteinheit ausgebildet. Die Transporteinheit kann bspw. als Tieflader ausgebildet sein worauf die erfindungsgemäße Anordnung weitestgehend fest installiert ist. Auf diese Weise lässt sich die Anordnung schnell überall hin bewegen.Since the soiled bulk material often involves significant quantities, the transport costs to the cleaning arrangement are quite high. In order to achieve a diverse use in different locations, without disassembling the system for transport, the arrangement is formed mobile with a transport unit. The transport unit may, for example, be designed as a low loader, whereupon the arrangement according to the invention is largely permanently installed. In this way, the arrangement can be moved quickly everywhere.

Weitere Ausgestaltungen und Vorteile ergeben sich aus dem Gegenstand der Unteransprüche, sowie den Zeichnungen mit den dazugehörigen Beschreibungen.Further embodiments and advantages will become apparent from the subject of the dependent claims, as well as the drawings with the accompanying descriptions.

Kurze Beschreibung der ZeichnungShort description of the drawing

Fig. 1Fig. 1
zeigt in dreidimensionaler Darstellung eine erfindungsgemäße Anordnung zur Reinigung von verschmutztem Schüttgut als schematische Prinzipskizze.shows a three-dimensional view of an inventive arrangement for the purification of contaminated bulk material as a schematic schematic diagram.
Fig. 2Fig. 2
zeigt in dreidimensionaler Darstellung eine schematische Prinzipskizze die Zufuhr- und Mischvorrichtung der erfindungsgemäßen Anordnung.shows in three-dimensional representation of a schematic schematic diagram of the supply and mixing device of the arrangement according to the invention.
Fig. 3Fig. 3
zeigt in dreidimensionaler Darstellung eine schematische Prinzipskizze des Aufströmklassierers der erfindungsgemäßen Anordnung.shows a schematic diagram of the Aufströmklassierers of the arrangement according to the invention in three-dimensional representation.
Bevorzugtes AusführungsbeispielPreferred embodiment

In Fig. 1 wird mit 10 eine erfindungsgemäße Anordnung zur Reinigung von verschmutztem Schüttgut bezeichnet. Die Anordnung befindet sich als einer Einheit auf einem Auflieger 11 für einen nicht dargestellten Sattelschlepper, wodurch die Anordnung mobil wird. Räder 13 des Aufliegers 11 sind ansatzweise zu sehen.In Fig. 1 is designated 10 an inventive arrangement for the purification of contaminated bulk material. The arrangement is in the form of a unit a semi-trailer 11 for a semitrailer, not shown, whereby the arrangement is mobile. Wheels 13 of the trailer 11 are to be seen beginning.

Das verschmutzte Schüttgut wird in einen als Aufnahme ausgebildeten Trichter 12 eingefüllt. Das verschmutzte Schüttgut fällt durch den Trichter 12 auf ein Förderband 14, 16, 22, 29, 34. Das Förderband 14, 16, 22, 29, 34 besteht aus mehreren Komponenten und transportiert das verschmutzte und später gereinigte Schüttgut, sowie die Verunreinigungen zwischen den einzelnen Bearbeitungsstufen. Über die Förderbänder 16 werden Stützkörner auf das Förderband 14 dem verschmutzten Schüttgut zugeführt.The contaminated bulk material is introduced into a funnel 12 designed as a receptacle. The contaminated bulk material falls through the hopper 12 on a conveyor belt 14, 16, 22, 29, 34. The conveyor belt 14, 16, 22, 29, 34 consists of several components and transports the contaminated and later cleaned bulk material, as well as the contamination between the individual processing stages. About the conveyor belts 16 support grains are fed to the conveyor belt 14 the polluted bulk material.

Dieses Gemisch gelangt in eine Mischvorrichtung 18 einer mechanischen Trenneinheit. Ein erster Wasserhochdruckgenerator 20 bestrahlt mit seinem heißen Wasserstrahl das Gemisch aus Stützkörnern und verschmutztem Schüttgut. Durch das beigemengte Stützkorn werden die Verunreinigungen in kleine Bestandteile zerrieben, zerschossen oder aufgelöst. Alternativ kann das Schüttgut aber auch nur mit heißem Wasserdampf unter Hochdruck gereinigt werden.This mixture enters a mixing device 18 of a mechanical separation unit. A first high-pressure water generator 20 irradiated with its hot water jet, the mixture of supporting grains and contaminated bulk material. Due to the added supporting grain, the impurities are broken down into small components, shot up or dissolved. Alternatively, the bulk material can also be cleaned only with hot steam under high pressure.

Das Förderband 22 unterhalb der Mischvorrichtung 18 transportiert das so gelöste Gemisch aus verschmutztem Schüttgut, Stützkörnern und Wasser auf ein Schwingsieb 24 einer Siebvorrichtung 25. Ein zweiter, in dieser Abbildung nicht sichtbarer, Wasserhochdruckgenerator erzeugt einen oder mehrere heiße Wasserstrahlen und/oder Wasserdampf, mit denen der verschmutzte Schüttgut auf dem Schwingsieb 24 zur Beschleunigung des Siebvorgangs bestrahlt wird. Öffnungen 26 des Schwingsiebs 24 sind in ihrer Größe variabel gehalten, um unterschiedliche Korngrößen abscheiden zu können. Die Größe der Öffnungen 26 wird dabei insbesondere so gewählt, dass die Stützkörner abgetrennt werden und von dem Schwingsieb 24 auf die Förderbänder 16 fallen. Von dort werden sie wieder dem Prozess, d.h. auf das Förderband 14 dem verschmutzten Schüttgut, zur Vermischung zugeführt.The conveyor belt 22 below the mixing device 18 transports the dissolved mixture of soiled bulk material, support grains and water onto a vibrating screen 24 of a screening device 25. A second, not visible in this figure, high-pressure generator generates one or more hot water jets and / or water vapor with which the soiled bulk material is irradiated on the vibrating screen 24 to speed up the screening process. Openings 26 of the vibrating screen 24 are kept variable in size in order to be able to separate different particle sizes. The size of the openings 26 is chosen in particular so that the support grains are separated and fall from the vibrating screen 24 on the conveyor belts 16. From there they will return to the process, i. fed to the conveyor 14 the soiled bulk material, for mixing.

Von dem Schwingsieb 24 wird das verschmutzte Schüttgut nun mit einer nicht dargestellten Pumpenstation einer Zentrifuge 28 zugeführt. In der Zentrifuge 28 wird ein großer Teil des Schüttgutes von Wasser und Verunreinigungen getrennt. Ein anderer Teil des ausgesiebten Materials wird über das Förderband 29 an einem Ort 31 abgelagert. L-förmige Steine 33 dienen zur Abgrenzung und verhindern, dass Verunreinigungen unter die Maschine gelangen.From the vibrating screen 24, the contaminated bulk material is now supplied to a centrifuge 28 with a pump station, not shown. In the centrifuge 28, a large part of the bulk material is separated from water and impurities. Another part of the screened material is deposited on conveyor belt 29 at a location 31. L-shaped Stones 33 serve to delimit and prevent impurities from getting under the machine.

Das getrennte Wasser mit Anteilen an Verunreinigungen wird in einem nicht dargestellten Zwischenbehälter geleitet. Das Schüttgut mit den Resten an Verunreinigungen fällt in einen unter der Zentrifuge 28 aufgestellten Aufströmklassierer 30. Der Aufströmklassierer 30 trennt durch sein Funktionsprinzip das Schüttgut von Schwebestoffen. Die Schwebestoffe werden hierbei durch Wasser ausgespült und ebenfalls in den Zwischenbehälter geleitet. Das so gereinigte Schüttgut wird aus dem Aufströmklassierer 30 ausgespült und auf ein als Schwingentwässerer ausgebildetes Entwässerungsmittel gegeben. In dem Schwingentwässerer wird dem Schüttgut weiteres Wasser entzogen. Anschließend wird das saubere Schüttgut über das Förderband 34 transportiert und an einem Ort 36 zur weiteren Nutzung angehäuft.The separated water with proportions of impurities is passed in an intermediate container, not shown. The bulk material with the residues of impurities falls into an upflow classifier 30 set up under the centrifuge 28. The upflow classifier 30 separates the bulk material of suspended matter by its functional principle. The suspended matter is thereby rinsed out by water and also passed into the intermediate container. The thus cleaned bulk material is rinsed out of the Aufströmklassierer 30 and placed on a trained as Schwingentwässerer dehydrating agent. In the Schwingentwässerer the bulk material is withdrawn more water. Subsequently, the clean bulk material is transported via the conveyor belt 34 and accumulated at a location 36 for further use.

In Figur 2 wird gegenüber Figur 1 die Mischvorrichtung 18 vergrößert als Detailzeichnung mit dem ersten Wasserhochdruckgenerator 20 dargestellt. Die Mischvorrichtung 18 weist in diesem Ausführungsbeispiel ein quaderförmiges Gestell 38 auf, in dem auf der oberen Seite eine als Trichter ausgebildete Zufuhr 40 vorgesehen ist. Das Gemisch aus verschmutztem Schüttgut mit den Stützkörnern wird durch den heißen Wasserstrahl und/oder Wasserdampf des Wasserhochdruckgenerators 20 zerrieben. Das Gemisch wird so gelöst und fällt auf das Förderband 22, welches das Gemisch schließlich zum Schwingsieb 24 befördert. Unterhalb des Förderbands 22 befindet sich ein Auffangbehälter 42. Der Auffangbehälter 42 fängt Material und Wasser auf, was nicht auf das Förderband 22 gelangt.In FIG. 2 is opposite FIG. 1 the mixing device 18 is shown enlarged as a detailed drawing with the first high-pressure water generator 20. The mixing device 18 has in this embodiment, a cuboid frame 38, in which on the upper side designed as a funnel 40 supply is provided. The mixture of soiled bulk material with the support grains is ground by the hot water jet and / or water vapor of the high-pressure water generator 20. The mixture is thus dissolved and falls onto the conveyor belt 22, which finally conveys the mixture to the vibrating screen 24. Below the conveyor belt 22 is a collecting container 42. The collecting container 42 traps material and water, which does not reach the conveyor belt 22.

In Figur 3 ist der Aufströmklassierer 30 als vergrößerte Detailansicht zu sehen. Das verschmutzte Schüttgut wird in denen Aufströmklassierer 30, welcher sich ebenfalls in einem quaderförmigen Gestell 44 befindet, eingeführt. Mit 46 wird der Rand und mit 48 der Innenraum des Aufströmklassierers 30 bezeichnet. Wasser wird von unten in den Innenraum 48 des Aufströmklassierers 30 eingeströmt, so dass die gegenüber dem Schüttgut leichteren Schmutzpartikel nach oben strömen und mit dem Wasser über den oben liegenden Rand 46 weggespült werden. Bezugszeichen 10 Anordnung (zur Reinigung von verschmutztem Schüttgut) 11 Auflieger 12 Trichter 13 Räder 14 Förderband 16 Förderband 18 Mischvorrichtung 20 Wasserhochdruckgenerator 22 Förderband 24 Schwingsieb 25 Siebvorrichtung 26 Öffnungen 28 Zentrifuge 29 Förderband 30 Aufströmklassifizierer 31 Ort 33 "L"-Förmige Steine 34 Förderband 36 Ort 38 Quaderförmiges Gestell 40 Trichter 42 Auffangbehälter 44 Quaderförmiges Gestell 46 Rand des Aufströmklassifizierers 48 Innenraum des Aufströmklassifizierers In FIG. 3 is the Aufströmklassierer 30 to see an enlarged detail view. The contaminated bulk material is introduced in those Aufströmklassierer 30, which is also located in a cuboid frame 44. 46 denotes the edge and 48 denotes the interior of the inflow classifier 30. Water is flowed from below into the interior 48 of the Aufströmklassierers 30, so that the lighter than the bulk of dirt particles flow upwards and are flushed away with the water over the upper edge 46. <B> reference numerals </ b> 10 Arrangement (for cleaning soiled bulk material) 11 semitrailer 12 funnel 13 bikes 14 conveyor belt 16 conveyor belt 18 mixing device 20 High pressure water generator 22 conveyor belt 24 vibrating Screen 25 screening device 26 openings 28 centrifuge 29 conveyor belt 30 Aufströmklassifizierer 31 place 33 "L" -shaped stones 34 conveyor belt 36 place 38 Rectangular frame 40 funnel 42 receptacle 44 Rectangular frame 46 Edge of the upstream classifier 48 Interior of the influx classifier

Claims (6)

  1. An arrangement (10) for cleaning contaminated bulk material comprising:
    a) a pick-up and conveying device (12, 14, 16, 22, 29, 34) for picking up and for conveying the contaminated bulk material within the arrangement (10),
    b) a mechanical separation unit (19) for mechanical separation of the bulk material and/or sludge comprising a feed (40) and mixing device (18) for feeding and mixing of support grains and water to the contaminated bulk material,
    c) a screening device (25) with a vibrating screen (24) for separating coarse grained components, in particular support grains,
    d) a centrifuge (28) for separation of contaminants from the bulk material,
    e) a up-current classifier (30) for upward streaming of dissolved suspended solids out of the bulk material,
    f) dewatering means for separating the cleaned bulk material from the water therein,
    characterized by
    g) a steam generator processing the bulk material with steam, in which
    h) a first high pressure water generator (20) leads hot water and/or steam under high pressure into the feed (40) and mixing device (18), and
    i) a second high pressure water generator is provided for the screening device (25) for jetting the contaminated bulk material on the vibrating screen (24) with hot water and/or steam under high pressure.
  2. An arrangement (10) for cleaning contaminated bulk material according to claim 1, characterized in that a device for dewatering of sludge produced during the cleaning is provided.
  3. An arrangement (10) for cleaning contaminated bulk material according to claims 1 or 2, characterized in that the arrangement (10) is adapted to be mobile.
  4. An arrangement (10) for cleaning contaminated bulk material according to any one of claims 1 to 3, characterized in that the arrangement is formed (10) as a unit.
  5. An arrangement (10) for cleaning contaminated bulk material according to any one of claims 1 to 4, characterized in that openings (26) of the vibrating screen (24) are adapted being variable in size.
  6. An arrangement (10) for cleaning contaminated bulk material according to any one of claims 1 to 5, characterized in that the arrangement is adapted to be mobile with a transport unit.
EP10768383.1A 2010-08-27 2010-08-27 Bulk goods cleaning system Not-in-force EP2608888B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2010/075083 WO2012025071A1 (en) 2010-08-27 2010-08-27 Bulk goods cleaning system

Publications (2)

Publication Number Publication Date
EP2608888A1 EP2608888A1 (en) 2013-07-03
EP2608888B1 true EP2608888B1 (en) 2016-12-14

Family

ID=43929117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10768383.1A Not-in-force EP2608888B1 (en) 2010-08-27 2010-08-27 Bulk goods cleaning system

Country Status (5)

Country Link
EP (1) EP2608888B1 (en)
CA (1) CA2804656C (en)
DE (1) DE112010005823A5 (en)
RU (1) RU2571112C2 (en)
WO (1) WO2012025071A1 (en)

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CN107961976A (en) * 2017-11-20 2018-04-27 季梅 A kind of niblet power screen sizing apparatus with dedusting

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CN113814214B (en) * 2020-09-25 2022-12-30 安康市翔泽油田材料有限公司 Ore belt cleaning device for mining industry
CN113529536A (en) * 2021-07-23 2021-10-22 中交路桥南方工程有限公司 Stone and mud washing and removing device used in road pavement construction

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Also Published As

Publication number Publication date
WO2012025071A1 (en) 2012-03-01
RU2013108171A (en) 2014-08-27
EP2608888A1 (en) 2013-07-03
DE112010005823A5 (en) 2013-06-06
CA2804656A1 (en) 2012-03-01
CA2804656C (en) 2018-05-01
RU2571112C2 (en) 2015-12-20

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