EP2486355B1 - Energierückgewinnungsvorrchtung zur wärmebehandlung von fluiden oder feststoffen - Google Patents

Energierückgewinnungsvorrchtung zur wärmebehandlung von fluiden oder feststoffen Download PDF

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Publication number
EP2486355B1
EP2486355B1 EP10774010.2A EP10774010A EP2486355B1 EP 2486355 B1 EP2486355 B1 EP 2486355B1 EP 10774010 A EP10774010 A EP 10774010A EP 2486355 B1 EP2486355 B1 EP 2486355B1
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EP
European Patent Office
Prior art keywords
fluid
chamber
solids
fluids
range
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EP10774010.2A
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English (en)
French (fr)
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EP2486355A2 (de
Inventor
Giuseppe Faslivi
Medardo Pinti
Maria Llaria Pistelli
Vittorio Ratto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rina Consulting Centro Sviluppo Materiali SpA
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Rina Consulting Centro Sviluppo Materiali SpA
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D11/00—Heat-exchange apparatus employing moving conduits
    • F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0045—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for granular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases

Definitions

  • the present invention refers to the technological sector of the thermal treatment and efficientlysation of solid or fluid materials, polluted or not polluted, such as gases, vapours, liquids, soils, rocks, sludges and industrial or civil wastes.
  • the mechanical way normally has problems of both constructive difficulties and of plant dimensions
  • the chemical way could involve in additional problems tied to the use of chemical components that can generate chemical products having difficult environmental disposal.
  • the biological way generally acts with time that often do not correspond to the industrial necessities, and thus presents limitations in the application.
  • the thermal way presents plant complexity problems and efficiency problems.
  • the present invention intends to propose an energy recovery apparatus suitable for the thermal treatment of materials and able to solve state-of-art problems, in particular giving a simple plant solution, with high yield, high thermal exchange rate, reduced dimensions, to be used also locally on-site near the same areas where the polluted material to be treated has been generated.
  • This proposal of plant solution permits both to heat a fluid by subsequent application and to rapidly remove heat from a fluid or from a plant zone in order to obtain a quick cooling of the affected zone, thus avoiding the continuation of not desired chemical reactions, favoured by high temperature values, such as the ones that brings to dioxins formation.
  • an energy recovery apparatus suitable for thermal treating fluids or solids comprising:
  • the second hollow annulus is circular or polygonal and preferably forms the external wall of the containment chamber (2).
  • the means for the treatment of fluid emissions include at least a filter or a deduster or a cyclone.
  • the apparatus (1) can comprise:
  • the means for the inflow of solid material are selected from the group containing screw conveyer, conveyer belt, pneumatic injectors.
  • the longitudinal symmetry axis of the second chamber (5) is preferably incident with respect to an horizontal axis of an angle ranging between 0° and 2.5°.
  • the means of the inflow of the solid material include at least a gravity system.
  • the apparatus according to the invention can be used for the energy recovery associated to the thermal treatment of fluids or solids, wherein the cooling rate of the first fluid is in the range of 250°C/s to 3000°C/s, preferably larger than 300°C/s.
  • the use can provide that a fluid with high thermal exchange capacity of flows in the helicoidal form ducts.
  • This fluid with high capacity of thermal exchange can be a diathermic oil.
  • the apparatus in which the first fluid, comprising fumes from the post-combustion chamber or from the combustion of traditional combustibles, is introduced at linear flow-rate in the range of 15m/s to 50m/s, preferably 35-45m/s, and exit at a temperature value lower than 250°C.
  • the apparatus of the invention can be used in situations where solid materials, submitted under thermal treatment, polluted and not polluted, include industrial and civil sludges, industrial soils, rocks, mixture of sable and material of organic matrix such as paper, plastic and sewage.
  • the temperature in the interspace between the first and the second chamber can be in the range of 200°C to 1000°C.
  • the rotation rate of the second chamber (5) is in the range of 1 to 20 rpm.
  • the use of the apparatus in this case, can provide that the flowrate of the solid material to be treated is in the range of 50 to 5000 Kg/h, its permanence time is between 10 and 180 min and its dimension is between 0,1 and 50 mm.
  • the apparatus (1) proposed by the present invention, provides for its use a first hot fluid, generated for example by effluents post-combustion, coming from thermal treatment of organic material matrix (polluted and not), or generated by the combustion of traditional combustibles.
  • This fluid is conveyed, through inlet connectors, to a containment chamber (2) where a deflector (2') of elongated form creates afirst hollow annulus (or first interspace) (2") and from where, subsequently, it flows out through exit link pipes.
  • the external wall of the containment chamber (2) is realized using high thermal exchange elements (3) realized thanks to a hollow annulus constituted by helicoidal or longitudinal conducts inside which circulates a second fluid, that, in the proposed solution, is a diathermic oil.
  • a second fluid that, in the proposed solution, is a diathermic oil.
  • the apparatus (1) proposed by the present invention, provides, for its use, the inlet of the solid material to be treated, by means of a hopper (4) from where, subsequently, it goes in a rotating chamber (5).
  • a containment chamber (2) is positioned, that, as in figure 1 , assumes the form of an interspace (second hollow annulus) by means of a deflector, and in which inside hot fumes are made circulating which have been obtained by post-combustion or traditional combustibles.
  • the material to be treated is moved by means of the contact with the internal wall of the rotating chamber (5) and thermally treated, thanks to the thermal support mainly provided by the irradiation of the external wall of the chamber containing the fumes (2) and the conduction of the internal wall of the rotating chamber (5). Afterwards, the material is externally conducted by the suitable emission way (7).
  • the apparatus according to the invention is utilised only in the part concerning the thermal exchange with the active use of the annulus containing a spiral-form duct, inside which the diathermic oil circulates.
  • the fluid to be cooled is represented by the off-gases at the exit of an electric furnace, containing dioxins precursors (general name of polychlorate organic compounds, highly toxic, that present in the molecular structure duple bonds conjugated between carbon atoms).
  • dioxins precursors generally name of polychlorate organic compounds, highly toxic, that present in the molecular structure duple bonds conjugated between carbon atoms.
  • the inlet fume flowrate is equal to 80000 Nm 3 /h at an inlet temperature value of 600°C with a linear flow-rate 30 m/s.
  • the temperature value of the fume will be lower than 250°C thanks to the action of the thermal exchange of the oil that, after the contact with the off-gases, undergoes a temperature increase of about 100°C.
  • Sludges (300 kg/h) of civil origin have been fed into the rotating chamber and have been treated by thermal way in order to dehydrate them and reduce the volume by means of fumes with a temperature value of 800°C at the inlet and 550°C at the exit and at a temperature of the internal wall of the rotating chamber equal to 400°C and at a temperature of the interspace equal to 450°C.
  • the rotating rate of the rotating drum has been of 9 rpm.
  • the permanence time of the civil sludge to be treated has been of 50 min.
  • the rotating rate of the rotating drum has been of 9 rpm.
  • the permanence time of the mixture to be treated has been of 40 min.
  • the rotating rate of the rotating drum has been of 12 rpm.
  • the permanence time of the material to be treated has been of 30 min.
  • the rotating rate of the rotating drum has been of 10 rpm.
  • the permanence time of the material to be treated has been of 30 min.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Sludge (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (15)

  1. Energierückgewinnungsvorrichtung (1) zur Wärmebehandlung von Fluiden oder Feststoffen, umfassend:
    - Mittel zum Einströmen des ersten Fluids;
    - eine erste Enthaltekammer (2) zum Enthalten eines ersten Fluids, versehen mit einem Abweiser (2'), der sich im Innenraum der Kammer im Wesentlichen entlang deren gesamten Länge entwickelt und dieser die Form eines ersten Hohlrads (2") verleiht;
    - Wärmetauschmittel für den Wärmetausch (3) zwischen dem ersten Fluid und einem zweiten Fluid oder einem Feststoff, umfassend eine zweite Kammer (5) für den Feststoff oder für das zweite Fluid, ein zweites Hohlrad, das außenseitig oder innenseitig im Kontakt mit der Enthaltekammer (2) des ersten Fluids positioniert ist, aufweisend eine parallele Längssymmetrieachse, die vorzugsweise mit der Längssymmetrieachse der Enthaltekammer (2) übereinstimmt, wobei das zweite Hohlrad beim Wärmetausch zwischen dem ersten Fluid und dem zweiten Fluid geeignet ist, um Leitungen zu enthalten, die sich über mindestens eine der außenseitigen Wände der Enthaltekammer (2) in Schraubenform oder in linearer Form mit der Längssymmetrieachse parallel zur Längssymmetrieachse der Enthaltekammer (2) erstrecken, die geeignet sind, um zu bewirken, dass das zweite Fluid zwischen dem Eintritt und dem Austritt gleichläufig, gegenläufig oder in einer gleichläufigen und gegenläufigen Abfolge mit der/zur Zirkulationsrichtung des ersten Fluids strömt, wobei es sich beim zweiten Fluid um ein diathermisches Öl handelt und wobei die zweite Kammer (5), die für die Zirkulation von Feststoffen im Innenraum geeignet ist, im Wesentlichen zylindrisch und außerhalb der ersten Enthaltekammer (2) positioniert ist, geeignet ist, um sich rund um ihre Längssymmetrieachse vorzugsweise parallel zur oder übereinstimmend mit der Längsachse der ersten Enthaltekammer (2) zu drehen, und formend einen Zwischenraum (6) mit der außenseitigen Wand der ersten Enthaltekammer (2), wobei die zu behandelnden Feststoffe durch den Kontakt mit der innenseitigen Wand der rotierenden zweiten Kammer (5) bewegt werden;
    - Mittel zum Ausströmen des ersten Fluids;
    - mögliche Mittel zur Behandlung von ausgegebenen Fluiden oder Feststoffen,
    wobei die Mittel zum Einströmen des ersten Fluids geeignet sind, um gleichläufig oder gegenläufig mit der/zur Zirkulationsrichtung des zweiten Fluids oder des Feststoffs zuzuführen, wobei die Mittel zum Einströmen und Ausströmen des ersten Fluids Verbindungen umfassen, und wobei die Enthaltekammer (2) und die Wärmetauschmittel aus Metallmaterial gefertigt sind, das gegen hohe Temperaturen beständig ist, und wobei die erste Kammer und die zweite Kammer aus Materialien bestehen, die beständig gegen Temperaturen im Bereich 200-1000 °C sind.
  2. Vorrichtung (1) nach Anspruch 1, wobei die Kammer (2), die für die Zirkulation von Fluiden in ihrem Innenraum geeignet ist, im Wesentlichen zylindrisch oder prismatisch ist und eine Längsachse aufweist, die möglichst zu der horizontalen Achse einfallend ist.
  3. Vorrichtung nach Anspruch 2, wobei das zweite Hohlrad kreisförmig oder vieleckig ist und vorzugsweise die außenseitige Wand der Enthaltekammer (2) formt.
  4. Vorrichtung nach Anspruch 1, wobei die Mittel zur Behandlung der Fluidausgabe mindestens einen Filter oder einen Entstauber oder einen Fliehkraftabscheider einschließen.
  5. Vorrichtung (1) nach Anspruch 1, zudem umfassend:
    - Mittel für den Einlass (4) von zu behandelnden Feststoffen und
    - Mittel für die Ausgabe (7) von behandeltem Feststoffmaterial.
  6. Vorrichtung nach Anspruch 5, wobei die Mittel für den Feststoffmaterialeinlass aus der Gruppe ausgewählt sind, umfassend: Schraubenförderer, Bandförderer, pneumatische Injektoren.
  7. Vorrichtung nach Anspruch 5, wobei die Längssymmetrieachse der zweiten Kammer (5) vorzugsweise einfallend zu einer horizontalen Achse mit einem Winkel zwischen 0 und 2,5° ist.
  8. Vorrichtung nach Anspruch 5, wobei diese Mittel für den Feststoffmaterialienauslass mindestens ein Schwerkraftsystem einschließen.
  9. Multimodulare Energierückgewinnungsvorrichtung für die Wärmebehandlung von Fluiden oder Feststoffen mit in Reihe oder parallel geschalteten Modulen, dadurch gekennzeichnet, dass ein jedes Modul aus einer Vorrichtung nach Anspruch 1 bis 8 besteht.
  10. Verwendung der Vorrichtung nach einem der vorhergehenden Ansprüche 1 bis 9 für die Energierückgewinnung, assoziiert mit der Wärmebehandlung von Fluiden oder Feststoffen, wobei die Abkühlungsrate des ersten Fluids im Bereich von 250 °C/s bis 3000 °C/s liegt und vorzugsweise höher als 300 °C/s ist.
  11. Verwendung der Vorrichtung nach Anspruch 10, wobei das erste Fluid, das Abgase aus der Nachverbrennungskammer oder aus der Verbrennung herkömmlicher Brennstoffe einschließt, bei einer linearen Strömungsgeschwindigkeit im Bereich von 15 m/s bis 50 m/s, vorzugsweise 35-45 m/s, einströmt und bei einer Temperatur von weniger als 250 °C ausströmt.
  12. Verwendung der Vorrichtung nach Anspruch 10 oder 11, wobei die Feststoffmaterialien, die verunreinigt oder nicht verunreinigt der Wärmebehandlung unterzogen werden, Industrie- oder Siedlungsschlämme, Industriefeststoffe, Gesteine, Mischungen von Sand und Materialien, aufweisend eine organische Matrix wie Papier, Kunststoff, Schmutzwasser, einschließen.
  13. Verwendung der Vorrichtung nach einem der Ansprüche 10 bis 12, wobei die Temperatur im Zwischenraum zwischen der ersten und der zweiten Kammer im Bereich von 200° bis 1000 °C liegt.
  14. Verwendung der Vorrichtung nach einem der Ansprüche 10 bis 13, wobei die Drehzahl der zweiten Kammer (5) im Bereich von 1 bis 20 U/min liegt.
  15. Verwendung der Vorrichtung nach einem der Ansprüche 10 bis 14, wobei die Durchflussmenge des zu behandelnden Feststoffmaterials im Bereich von 50 bis 5000 kg/h liegt, dessen Verweildauer im Bereich von 10 bis 180 min liegt und dessen Größe im Bereich von 0,1 bis 50 mm liegt.
EP10774010.2A 2009-10-06 2010-10-06 Energierückgewinnungsvorrchtung zur wärmebehandlung von fluiden oder feststoffen Active EP2486355B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM2009A000512A IT1396718B1 (it) 2009-10-06 2009-10-06 Apparato a recupero energetico e suo uso per il trattamento termico di fluidi o solidi.
PCT/IT2010/000416 WO2011042927A2 (en) 2009-10-06 2010-10-06 An energy recovery apparatus suitable for heat treatment of fluids or solids

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EP2486355A2 EP2486355A2 (de) 2012-08-15
EP2486355B1 true EP2486355B1 (de) 2019-04-03

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EP (1) EP2486355B1 (de)
ES (1) ES2741585T3 (de)
IT (1) IT1396718B1 (de)
TR (1) TR201909962T4 (de)
WO (1) WO2011042927A2 (de)

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CN118424029B (zh) * 2024-07-05 2024-09-06 常州旷达纺织科技发展有限公司 一种汽车面料生产用余热回收设备

Citations (3)

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Publication number Priority date Publication date Assignee Title
US3787292A (en) * 1971-08-13 1974-01-22 E Keappler Apparatus for pyrolysis of wastes
US20080020247A1 (en) * 2006-07-20 2008-01-24 Modine Manufacturing Company Compact air preheater for solid oxide fuel cell systems
US20080149471A1 (en) * 2006-12-26 2008-06-26 Nucor Corporation Pyrolyzer furnace apparatus and method for operation thereof

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DE8214949U1 (de) * 1982-05-22 1982-10-14 Dorst, Alois, 7801 Umkirch Oelvorwaermer
DE4202791A1 (de) * 1991-05-11 1992-11-12 Linder Rudolf Fa Waermetauscher fuer abwasser fuehrende rohr- oder schlauchleitungen
DE29903756U1 (de) * 1999-03-03 1999-07-01 hde Metallwerk GmbH, 58706 Menden Wärmetauscherrohr
US20030056944A1 (en) * 1999-09-23 2003-03-27 Joseph C. Ferraro External flue heat exchangers
FR2801098B1 (fr) * 1999-11-12 2002-03-29 Rubis Concept Echangeur thermique pour la vendange
JP2005098612A (ja) * 2003-09-25 2005-04-14 Matsushita Electric Ind Co Ltd 熱交換器及びその製造方法
US7661460B1 (en) * 2003-12-18 2010-02-16 Advanced Thermal Sciences Corp. Heat exchangers for fluid media
CN100458284C (zh) * 2005-12-15 2009-02-04 沈福昌 一种焚烧废物的成套装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787292A (en) * 1971-08-13 1974-01-22 E Keappler Apparatus for pyrolysis of wastes
US20080020247A1 (en) * 2006-07-20 2008-01-24 Modine Manufacturing Company Compact air preheater for solid oxide fuel cell systems
US20080149471A1 (en) * 2006-12-26 2008-06-26 Nucor Corporation Pyrolyzer furnace apparatus and method for operation thereof

Also Published As

Publication number Publication date
WO2011042927A2 (en) 2011-04-14
WO2011042927A3 (en) 2012-01-05
ITRM20090512A1 (it) 2011-04-07
ES2741585T3 (es) 2020-02-11
IT1396718B1 (it) 2012-12-14
EP2486355A2 (de) 2012-08-15
TR201909962T4 (tr) 2019-08-21

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