EP2486355A2 - Appareil de récupération d'énergie adapté au traitement thermique de fluides ou de solides - Google Patents

Appareil de récupération d'énergie adapté au traitement thermique de fluides ou de solides

Info

Publication number
EP2486355A2
EP2486355A2 EP10774010A EP10774010A EP2486355A2 EP 2486355 A2 EP2486355 A2 EP 2486355A2 EP 10774010 A EP10774010 A EP 10774010A EP 10774010 A EP10774010 A EP 10774010A EP 2486355 A2 EP2486355 A2 EP 2486355A2
Authority
EP
European Patent Office
Prior art keywords
fluid
chamber
fluids
solids
solid
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.)
Granted
Application number
EP10774010A
Other languages
German (de)
English (en)
Other versions
EP2486355B1 (fr
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
Original Assignee
Centro Sviluppo Materiali SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Centro Sviluppo Materiali SpA filed Critical Centro Sviluppo Materiali SpA
Publication of EP2486355A2 publication Critical patent/EP2486355A2/fr
Application granted granted Critical
Publication of EP2486355B1 publication Critical patent/EP2486355B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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:
  • first containment chamber (2) for the containment of a first fluid, possibly provided with a deflector (2') that develops itself in its interior substantially for all its length giving it the form of a first hollow annulus (or first interspace) (2");
  • thermal exchange means for thermal exchange (3) between the first fluid and the second fluid or a solid comprising a second hollow annulus (or second interspace) placed in contact, externally or internally, with said containment chamber (2) of the first fluid and having parallel longitudinal symmetry axis preferably coinciding with the longitudinal symmetry axis of said containment chamber (2), said second hollow annulus being suitable for containing conduits that extend over at least one of the external wall of the containment chamber (2), in helicoidal form or in linear form with longitudinal symmetry axis parallel to the longitudinal symmetry axis of said containment chamber, which are suitable for making the second fluid flow, between entrance and exit, in equicurrent, in countercurrent or in equicurrent and countercurrent sequence with the circulation direction of the first fluid or the solid;
  • the means for the first fluid inflow being suitable for sending in equicurrent o in countercurrent with the circulation direction of the second fluid or of the solid.
  • the containment chamber (2) suitable for making circulate fluids within itself is substantially cylindrical, or prismatic, and with longitudinal axis eventually incident with an horizontal axis.
  • the second hollow annulus is circular or polygonal and preferably forms the external wall of the containment chamber (2).
  • the means for the inflow and outflow of the first fluid comprise connections preferably realised, as the containment means (2) and the heat exchange means, in metallic material resistant to high temperature.
  • the means for the treatment of fluid emissions include at least a filter or a deduster or a cyclone.
  • the apparatus (1) can comprise:
  • a second chamber (5) suitable for making circulate inside solids, which is substantially cylindrical, placed externally to said first containment chamber (2) and suitable to rotate around its longitudinal symmetry axis that is preferably parallel or coincident with the longitudinal axis of the first chamber (2) and forming an interspace (6) with the external wall of the first chamber (2);
  • the means for the inflow of solid material are selected from the group containing cochlea, 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° 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.
  • Figure 1 schematically represents the longitudinal section of an embodiment of the apparatus according to the invention suitable for the fluid treatment.
  • Figure 2 schematically represents the longitudinal section of an embodiment of the apparatus according to the invention suitable for the solid treatment.
  • 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 an interspace (first hollow annulus) (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 hot fumes are introduced from the outside and, circulating in the chamber (2), lick the internal wall of the hollow annulus. They are rapidly cooled thanks to the action of the diathermic oil that circulates in countercurrent. The fumes, thus cooled, are subsequently emitted outside.
  • the inlet and exit of the first and second fluid are indicated, but not referenced, in the figure.
  • 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 poly- chlorate organic compounds, highly toxic, that present in the molecular structure duple bonds conjugated between carbon atoms).
  • dioxins precursors generally name of poly- chlorate organic compounds, highly toxic, that present in the molecular structure duple bonds conjugated between carbon atoms.
  • the inlet fume flow- rate 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.

Landscapes

  • 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)

Abstract

La présente invention concerne un appareil de récupération d'énergie et son utilisation pour le traitement thermique et la valorisation d'un matériau solide ou fluide, même pollué. La Figure 1 représente la coupe longitudinale d'un mode de réalisation de l'appareil selon la présente invention, adapté au traitement de fluides.
EP10774010.2A 2009-10-06 2010-10-06 Appareil de récupération d'énergie adapté au traitement thermique de fluides ou de solides Active EP2486355B1 (fr)

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 (fr) 2009-10-06 2010-10-06 Appareil de récupération d'énergie adapté au traitement thermique de fluides ou de solides

Publications (2)

Publication Number Publication Date
EP2486355A2 true EP2486355A2 (fr) 2012-08-15
EP2486355B1 EP2486355B1 (fr) 2019-04-03

Family

ID=42244260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10774010.2A Active EP2486355B1 (fr) 2009-10-06 2010-10-06 Appareil de récupération d'énergie adapté au traitement thermique de fluides ou de solides

Country Status (5)

Country Link
EP (1) EP2486355B1 (fr)
ES (1) ES2741585T3 (fr)
IT (1) IT1396718B1 (fr)
TR (1) TR201909962T4 (fr)
WO (1) WO2011042927A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (11)

* 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
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
US8048583B2 (en) * 2006-07-20 2011-11-01 Modine Manufacturing Company Compact air preheater for solid oxide fuel cell systems
EP2135922A3 (fr) * 2006-12-26 2013-10-16 Nucor Corporation Appareil de four à pyrolyse et son procédé de fonctionnement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011042927A2 *

Also Published As

Publication number Publication date
ES2741585T3 (es) 2020-02-11
ITRM20090512A1 (it) 2011-04-07
EP2486355B1 (fr) 2019-04-03
TR201909962T4 (tr) 2019-08-21
WO2011042927A3 (fr) 2012-01-05
WO2011042927A2 (fr) 2011-04-14
IT1396718B1 (it) 2012-12-14

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