EP0426925B1 - Verfahren und Anlage zur Behandlung von städtischen und industriellen Abfällen - Google Patents

Verfahren und Anlage zur Behandlung von städtischen und industriellen Abfällen Download PDF

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Publication number
EP0426925B1
EP0426925B1 EP89403348A EP89403348A EP0426925B1 EP 0426925 B1 EP0426925 B1 EP 0426925B1 EP 89403348 A EP89403348 A EP 89403348A EP 89403348 A EP89403348 A EP 89403348A EP 0426925 B1 EP0426925 B1 EP 0426925B1
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EP
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Prior art keywords
thermolysis
waste
gases
drying
chamber
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EP89403348A
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English (en)
French (fr)
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EP0426925A1 (de
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Robert Gaulard
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PARACHINI THERMOLYSE S.A.
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Cgc Entreprise SA
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
    • C10B47/28—Other processes
    • C10B47/32—Other processes in ovens with mechanical conveying means
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form

Definitions

  • Pyrolysis consists of burning a solid with a certain lack of oxygen. Oxygen is used in this reaction to heat the product and to decompose the materials in combustible gases, smoke and combustible carbonaceous residues, such as charcoal.
  • thermolysis reaction is even higher than that of pyrolysis because we are in the presence of a phenomenon of distillation of organic matter. During this reaction, the heat no longer comes from a direct flame but from radiation from a heating chamber.
  • thermolysis reaction When a thermolysis reaction is carried out on urban and / or industrial waste, we will somehow carry out a distillation of these to finally obtain carbonaceous solids recoverable and recoverable after sorting of inert, tars recoverable and recoverable in specific petrochemical plants, as well as clean combustible gases that can also be reused. So far, laboratory tests of thermolysis and some Experiments promise an interesting future for the treatment of urban and / or industrial waste, but no process or treatment facility has yet emerged, allowing certain economic industrial development.
  • the efficiency of the installation depends on the quality of the products obtained, that is to say the recoverable residual materials.
  • the treatment installation must be safe in terms of its operation, i.e. it must not be dangerous for the personnel supervising the operations or polluting the environment with regard to possible clearances. that could happen.
  • drying and decomposition are carried out by sending hot gases directly into the waste to be treated.
  • the gases obtained are collected and treated then transformed into combustible gases intended for the supply of the burners producing the drying and decomposition gases.
  • document FR 2 366 354 or DE 2 950 324 also discloses waste decomposition systems carried out in a decomposition enclosure allowing indirect heating of the waste.
  • the object of the present invention is to provide a method and an installation for treating urban and / or industrial waste in which a thermolysis reaction is used which is entirely suited to industrial requirements, namely efficiency, economy, pollution.
  • One of the aims of the present invention is to provide a method and an installation for treating urban and / or industrial waste, which allow continuous treatment of waste and which allow a lifetime. important installation mechanics, avoiding repetitive thermal shocks as much as possible.
  • Another object of the present invention is to provide a method and an installation for treating urban and / or industrial waste in which the temperature is obtained by the autothermal combustion of the residues produced during the reaction.
  • Another object of the present invention is to provide a method and an installation for treating urban and / or industrial waste in which the different stages are controlled sequentially, the control of each of these stages being carried out from the point of view of the temperatures set works, the atmosphere in which the reaction is carried out, to allow stable operation in temperature and pressure.
  • Another object of the present invention is to provide a process which allows the production of installations for treating urban and / or industrial waste, which are modular in their capacity and which can be easily adapted according to such or such uses.
  • Another object of the present invention is to provide a method and an installation for destroying urban and / or industrial waste which are advantageous in terms of the recovery of the material which can be stored and then checked before reuse.
  • Another object of the present invention is to provide a method and an installation for treating urban and / or industrial waste which are particularly advantageous from an ecological point of view and which make it possible to provide a solution to the problem of pollution of incinerators, well known to date.
  • thermolysis reaction is carried out at low temperature, of the order of 400 to 450 ° C., in a thermolysis chamber, isolated and controlled, then the gaseous products obtained from the thermolysis reaction, in closed circuits with respect to the atmosphere, in which the combustible gaseous elements are separated from the tars in the gaseous state, then the combustible gases are purified with a view to their subsequent re-use in said process.
  • the installation includes means for recovering solid materials and for recovering and treating gaseous products resulting from thermolysis.
  • FIG 1 shows schematically the various elements constituting the treatment installation of the present invention.
  • FIG. 2 shows in detail the means of recovery and treatment of the gaseous products resulting from the thermolysis carried out in the installation of FIG. 1.
  • the invention relates to a method and an installation for treating urban and / or industrial waste, which in particular allow destruction of such waste in a non-polluting and economical manner using a thermolysis reaction.
  • thermolysis consist of carbonaceous solids recoverable and recoverable after sorting inert, tars also recoverable and recoverable in specific thermal or petrochemical installations as well as clean gases reusable in the process of the invention after inspection.
  • the waste is subjected to a fully controlled thermolysis reaction, in which in particular the creation at high temperature of chlorinated compounds and stable pollutants difficult to remove, such as dioxide, is avoided, and then the products obtained by implementing different stages carried out successively and sequentially, without discharge polluting the atmosphere.
  • the waste to be treated Prior to the thermolysis reaction, according to the present invention, the waste to be treated is dehydrated in order to eliminate a large part of the moisture contained in it.
  • This prior dehydration is carried out in a closed drying enclosure and this phase is completely controlled since all the gases produced during drying are recovered, in a closed circuit with respect to the atmosphere, and these gases are subjected to a purification step.
  • said purified gases are at least partially reinjected into the installation as a drying agent.
  • it is necessary to evacuate the excess gases because for example it is necessary to enter the installation of the combustion air.
  • this discharge to the outside is carried out in a non-polluting way because the excess gases are not aggressive for the atmosphere.
  • thermolysis is advantageously carried out at a temperature below 450 ° C. to avoid the formation of dangerous pollutants such as, for example, dioxide.
  • thermolysis reaction is carried out in a thermolysis chamber, isolated and controlled, from which the gaseous products resulting from the thermolysis reaction are recovered, in closed circuits with respect to the atmosphere.
  • the recovered gaseous products, resulting from the thermolysis reaction, are then also treated in closed circuits in which the combustible gaseous elements are separated from the tars in the gaseous state, then the combustible gases are purified with a view to their subsequent use in said process, i.e. separating the droplets from the gas before storage.
  • thermolysis reaction can be carried out at atmospheric pressure.
  • thermolysis reaction under sweeping neutral gas for the reaction, in the thermolysis chamber, at a controlled pressure slightly higher than atmospheric pressure.
  • thermolysis gaseous products resulting from thermolysis are continuously removed from the thermolysis chamber and directed to the means for recovering and treating said gaseous products.
  • thermolysis chamber In the case where the reaction is carried out under neutral gas sweeping, such a gas is blown into the thermolysis chamber at a pressure slightly higher than atmospheric pressure, for example of the order of 1.6 bar, which continuously flushes out gaseous products from thermolysis.
  • thermolysis reaction In the case where the thermolysis reaction is carried out under overpressure, it is the pressure prevailing inside the thermolysis chamber which will drive the gases resulting from the thermolysis out of the enclosure as a function of a calibration pressure. predetermined.
  • thermolysis step proper the temperature in the thermolysis chamber is established, indirectly with respect to the waste to be treated, by circulation of high temperature heating gas.
  • these heating gases are recovered, in a closed circuit with respect to the atmosphere, and these gases are subjected to a purification step, in the same way as the gases produced during the preliminary drying.
  • the purified gases are at least partially reinjected into the installation as a drying agent.
  • the purified excess gases therefore non-polluting, can be evacuated outside the installation.
  • One of the advantages of the process of the present invention is to allow continuous treatment of the waste.
  • the waste is dehydrated in a drying chamber, in which it is stirred and subjected to a flow of hot air, such that a movement of the waste from the inlet to the outlet of said said is defined. drying chamber.
  • thermolysis reaction proper is carried out, as has been specified above.
  • thermolysis phase When the waste to be treated has undergone the thermolysis phase, it is then removed by gravity and sequentially solids from thermolysis for recovery.
  • FIG. 1 shows an example of an installation for treating urban and / or industrial waste, capable of carrying out a thermolysis reaction and designed particularly for the implementation of the method of the invention which has just been described.
  • thermolysis chamber controlled and isolated, waste to be treated
  • means for recovering solid materials and gaseous products. from thermolysis.
  • the drying chamber (1), the thermolysis chamber (2) and the means (3) for recovering the materials are advantageously arranged successively in series in such a way as to allow a continuous, sequential gravity movement of the waste and the contained materials, from the inlet of the installation (5) to its outlet (6) and that the 'We can keep each chamber (1, 2, 3) stable operation in temperature and / or pressure.
  • the first phase of the actual treatment therefore consists of a phase of drying or dehydration of the waste.
  • This phase is carried out in the drying chamber (1) in which the waste is stirred and subjected to a flow of hot air.
  • an advance movement (7) of the waste is generated from the inlet (5) to the outlet (8) of said drying chamber (1).
  • the drying chamber (1) consists of an enclosure (9) closed, having an inlet (5) through which the waste to be treated is introduced and an outlet (8) from which the dehydrated product will drain out.
  • a motorized drum (10) Inside the closed enclosure (9) is provided a motorized drum (10) able to contain the waste to be dried and to brew it permanently, and also able to create said advance movement (7) for the waste from the inlet (5) to the outlet (8).
  • the installation comprises means (12, 13) for creating a stream of hot air able to circulate in said drying enclosure (9).
  • a treatment box (12) which comprises a gas burner (13) and a blowing system (47) placed upstream of the burner (13), and able to direct a gas flow towards the flame of said burner.
  • the drying circuit also includes means (48) for recovering the gaseous fluid resulting from the drying of the drying chamber (9) as well as means for purifying said gaseous fluid resulting from drying.
  • the hot dry air (11) introduced into the dryer absorbs, on contact with the stirred waste, the moisture contained in it and thus leaves charged with moisture in (16).
  • This moist air (16) recovered by the means (48) then passes through a condenser exchanger (17) in order to be dehumidified and before being recycled to the means (12, 13) to create said stream of hot air, at the inlet (15) of the air treatment box (12) so that it is purified.
  • said means for creating the stream of hot air and for purifying the gaseous fluid consist essentially of the burner (13) and the blowing system (47).
  • a burner will be provided, the flame of which advantageously reaches at least 850 ° C. and a blowing system, the speeds of which will be such that the said gases will pass through the flame and will be maintained at this temperature for at least two seconds.
  • a sterilization of the gases will be obtained which will therefore be purified and the aromatic essences which they contained will be burned.
  • a valve (50), installed on the discharge of high temperature excess gases (19), before the recovery battery (18), will allow the adjustment of the volume of air entering compared to the volume of air leaving.
  • the direction of circulation of the hot air flow (11) is opposite to said advance movement (7) of the waste in the dryer.
  • the drum (10) is placed in said stream of hot air and provision is made for its rotation and its arrangement so that the hot air is introduced countercurrently into the dryer.
  • said drum (10) is arranged horizontally with its inclined axis of rotation to allow movement (7) of the waste from the inlet (5) to the outlet (8) of the dryer.
  • the drum (10) will internally have blades (49) fixed on the latter.
  • thermolysis reaction is carried out in the thermolysis chamber (2).
  • this thermolysis chamber (2) is constituted by a double jacket reactor having an internal primary enclosure (21), fixed, into which the waste is introduced, and by a secondary external heating enclosure (22), fixed, enveloping said primary enclosure (21).
  • a motorized rotor (23) equipped with paddles (24) oriented and fixed on a central axis controlled by a motor (25).
  • thermolysis chamber is horizontal; nevertheless, other arrangements could be envisaged, the rotor possibly being oblique, or even vertical. Likewise, a fixed enclosure and a rotating rotor are provided, but of course, one could imagine a reverse system in which the enclosure would turn.
  • the waste is heated up in particular by the combustion gases from a burner (28), of the mixed fuel oil - gas type for example, circulating in said secondary enclosure (22) which surrounds the primary enclosure (21).
  • This circulation of high temperature gas allows in particular the rise in temperature inside the enclosure (21) of the reactor of the order of 400 to 450 ° C.
  • the gases shown diagrammatically at (30) in the figure are reinjected into the drying circuit, as described above, thus participating in energy recovery. These gases are in particular reinjected at the inlet (15) of the box (12).
  • thermolysis chamber recovery heating gases which heat the thermolysis chamber, recovery which takes place in a closed circuit with respect to the atmosphere. Then these gases are also subjected to a purification step as it was for the drying gases.
  • drying (1) and thermolysis (2) chambers are superimposed, as shown in particular in FIG. 1, so that loading can occur by gravity.
  • an airlock (31) capable of connecting the two chambers in a sealed manner, so the waste can be introduced into the chamber thermolysis (2) continuously via said airlock (31) in order on the one hand to balance the pressures between the two enclosures and on the other hand, to authorize a neutralization of the incoming product, in particular by injection of nitrogen or pressure balance before opening the interior door of the airlock, or other.
  • thermolysis chamber there is another airlock (32) also sealingly connecting the thermolysis chamber and the means for recovering solid materials (3).
  • this second airlock (32) is similar to the first with regard to the evacuation of solids from thermolysis.
  • the waste is stirred inside the enclosure (21) of the reactor by the rotor (23-25).
  • the blades (24) define an advance movement (26) of the material contained in the chamber (2), from its inlet (8) to its outlet (27).
  • thermolysis according to the process of the present invention, the gaseous products resulting from the thermolysis reaction are recovered and treated in closed circuits (33) relative to the atmosphere as particularly illustrated in FIG. 2 .
  • the closed circuit (33) substantially constitutes said means (4) for recovering gaseous products resulting from thermolysis and are capable of separating the fuel elements from the tars in the gaseous state, by washing the combustible gases, with a view to their subsequent use. in said method.
  • these means (4) consist of a closed circuit (33) comprising at least one device for circulating said gaseous products such as a mechanical extraction device (34), a separator (35) "gaseous element fuel - tar in gaseous state ", of sprayer type, a gas purification circuit (36) in which the gas droplets are separated before its storage, as well as a circuit (37) for treating liquid effluents .
  • a closed circuit (33) comprising at least one device for circulating said gaseous products such as a mechanical extraction device (34), a separator (35) "gaseous element fuel - tar in gaseous state ", of sprayer type, a gas purification circuit (36) in which the gas droplets are separated before its storage, as well as a circuit (37) for treating liquid effluents .
  • thermolysis reactor (2) taking into account the temperature at which the reaction is carried out, there is a mixture of the combustible gaseous elements and of the tars in the gaseous state. These gases are removed under pressure or by sweeping the gas. In addition, certain powdery solid elements can also be entrained.
  • the principle of separation of combustible gases and tars leaving the reactor is carried out by the wet method using the separator (35) of the sprayer type generally known under the name of "quench at the water”.
  • the gaseous elements produced by the thermolysis reaction escape through the top (39) of the separator, the extraction device (34) making it possible to overcome the pressure drops in the circuit.
  • These gases are combustible and are then purified and stored in pressure tanks before being reused by the installation's burners.
  • This decantation is carried out in the treatment circuit (37) in which the light phase is continuously recovered by an oleophilic drum, then detached from the drum using a scraper which sends it in a small buffer capacity (40) , heated by an internal coil, in order to lower the viscosity of the organic mixture.
  • This mixture is then taken up by a gear then stored in a tar storage tank (41) before being redirected or treated.
  • the heavy aqueous phase is taken up at the bottom of the settling tank (37) by a centrifugal pump (42) then clarified on filters (43) intended to remove solid particles such as dust.
  • the decantation purge is then purified of any organic compound by passage over active carbon (44) and then discharged into the wastewater basin.
  • the washing liquid, used in the separator (35) of the sprayer type is recycled, kept at low temperature on the loop.
  • the on-line neutralization of the chlorine contained in the gas circuit is done by injection of soda (45) in the water of the "Quench".
  • the circuit is purged regularly to be sent to the settling tanks (37).
  • the solids resulting from thermolysis are removed by gravity and sequentially. This evacuation is, let us recall, carried out by means of the airlock (32) which makes it possible to maintain a controlled atmosphere inside the reactor (2).
  • thermolysis chamber (2) and the recovery means (3) are superimposed, the latter being in particular constituted by a container (46) adapted under said airlock (32).
  • a container (46) adapted under said airlock (32) it could also be possible to place them side by side with a lifting conveyor between them.
  • thermolysis solid residues from thermolysis, such as coals or inert materials, these being recovered from below the reactor (2) via the airlock (32), in particular neutralized by nitrogen injection.
  • a mobile, sealed, double-envelope container (46) is used, in which cold water is circulated in order to accelerate the cooling of the product.
  • a handling device with a magnetic drum to remove ferrous materials and a vibrating screen to isolate the inert parts of the carbon. All of this equipment will be provided in particular under a sealed hood in order to limit carbon dust and its expansion in the atmosphere.
  • urban waste is supplied in a main pit with an autonomy of several days of operation, but without however being exaggerated so as to minimize the release of odors.
  • the air volume located above the repository is maintained in depression by a mechanical ventilation assembly.
  • the waste thus prepared is then conveyed on a crusher allowing the ultimate physical transformation of the raw product before treatment. Grinding will shred household waste into sufficiently small elements to facilitate the drying technique described above.
  • a belt conveyor assembly takes up the waste thus treated from the mill outlet to store it in a hopper with a capacity such that it can continuously supply the drying chamber (1) of the present invention.
  • thermolysis reaction The means for treating the gaseous products resulting from thermolysis which have just been described will in particular be adapted as a function of the conditions under which the thermolysis reaction is carried out, namely under atmospheric pressure or under CO 2 sweeping or under overpressure particularly to allow in the different processing circuits the circulation of the different products.

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  • Oil, Petroleum & Natural Gas (AREA)
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  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
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Claims (16)

  1. Verfahren zur Behandlung von Stadt und/oder Industrieabfällen, bei dem:
    - die zu behandelnden Abfälle vorher in einem geschlossenen Trocknungsraum (1, 9), in dem sie einer Heißluftströmung ausgesetzt sind, entwässert werden,
    - die also entwässerten Abfälle in einen geschlossenen Zersetzungsraum (2, 21, 22) geleitet werden, in dem sie einer thermishen Zersetzungsstufe ausgesetzt werden, die mindestens gasförmigen Produkte (4) erzeugt und die Reaktionsgase einer Reinigungsstufe ausgesetzt werden,
    - in einen bezüglich der Atmosphär geschlossenen Kreislauf mindestens die während dem Trocknen erzeugten Gase (16) zurückgewonnen und sie zum Zweck ihrer Wiederverwendung behandelt werden,
    dadurch gekennzeichnet, daß
    - die genannte Zersetzung durch Thermolyse bei einer Temperatur im Bereich von 400 bis 450°C in einer isolierten und kontrollierten Thermolysekammer (21, 22) erfolgt, in der die Temperatur durch Hohetemperatur-Heizgasumlauf indirekt in Bezug auf die zu behandelnden Abfälle geregelt wird.
    - diese genannten Heizgase (30) in einen bezüglich der Atmosphär geschlossenen Kreislauf zurückgewonnen und diese Gase (30) einer Reinigungsstufe (12) ausgesetzt werden, die aus einem Brenner (13) und einem Blassystem (47) besteht,
    - die während dem Trocknen erzeugten Gase (16) einer Reinigungsstufe (17, 12) ausgesetzt werden, die aus einem Brenner (13) und einem Blassystem (47) besteht,
    - mindestens ein Teil der genannten gereinigten Gase (11) aufneu als Trocknungsagenzien in die Anlage eingespritzt wird und die nichtverunreinigenden Gase in die Atmosphär abgelassen werden.
  2. Behandlungsverfahren nach Anspruch 1, dadurch gekennzeichnet, daß die bei der Thermolysereaktion entstehenden gasförmigen Produkte in bezüglich der Atmosphär geschlossenen Freisläufen (4, 33) behandelt werden, in denen die brennbaren gasförmigen Bestandteile von den Teeren in gasförmigem Zustand getrennt werden, die brennbaren Gase anschließend zum Zweck ihrer späteren Wiederverwendung im genannten Verfahren gereinigt werden.
  3. Behandlungsverfahren nach Anspruch 1, dadurch gekennzeichnet, daß die zu behandelnden Abfälle während der Trocknungsstufe gerührt werden, sodaß eine Abfallvorschubbewegung (7) vom Eintritt (5) bis zum Austritt (8) des genannten Trocknungsraums (1) definiert wird.
  4. Behandlungsverfahren nach Anspruch 1, dadurch gekennzeichnet, daß:
    - die also entwässerten Abfälle unter Schwerekraft sequenziell in die Thermolysekammer (2) hineingeführt werden.
    - die bei der Thermolyse entstehenden Feststoffe unter Schwerekraft sequenziell entfernt und die bei der Thermolyse entstehenden gasförmigen Produkte kontinuierlich entnommen werden.
  5. Behandlungsverfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Abfälle während der Thermolysereaktion gerührt werden, sodaß eine Vorschubbewegung (26) für das in der Thermolysekammer (2) enthaltenen Material vom Eintritt (8) bis zum Austritt (27) der genannten Kammer, definiert wird.
  6. Behandlungsverfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Thermolysereaktion unter Blasen neutralen Gases für die Reaktion mit einem kontrollierten Druck, der geringfügig größer als der atmosphärische Druck ist, erfolgt.
  7. Behandlungsverfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Thermolysereaktion bei Überdruck erfolgt.
  8. Anlage zur Behandlung von Stadt- und/oder Industrieabfällen, die für die Anwendung einer Thermolysereaktion geeignet und für die Anwendung des Verfahrens nach Anspruch 1 entworfen ist, umfassend mindestens:
    - eine Trocknungskammer (1) für die zu behandelnden Abfälle, die einen ersten geschlossenen Raum (9) umfaßt.
    - Mittel (12, 13, 47) zur Erzeugung einer Heißluftströmung, die geeignet ist, im genannten Trocknungsraum (9) umzulaufen,
    - Mittel (48) zur Zurückgewinnung und Behandlung des beim Trocknen im Trocknungsraum (9) entstehenden gasförmigen Fluidums (16).
    - einen zweiten geschlossenen Zersetzungsraum (2) für die entwässerten Abfälle,
    - einen Kreislauf zum Reinigen der Zersetzungsgase,
    dadurch gekennzeichnet, daß:
    - der zweite geschlossene Raum als eine kontrollierte und isolierte Thermolysekammer (2) ausgestaltet ist, die von einem doppelwändigen Reaktor gebildet ist, der einen Primärraum (21), in den die Abfälle hineingeführt werden, und einen sekundären Heizraum (22), der geeignet ist, mindestens die Temperatur des Primärraums (21) zum Durchführen der Thermolysereaktion durch Hohetemperatur-Heizgasumlauf steigen zu lassen, aufweist, und
    - sie:
    - Mittel zur Zurückgewinnung der genannten Heizgase (30),
    - Mittel um die genannten Gase (16, 30) im Bereich der genannten Mittel (12, 13, 47) zur Erzeugung der heißen Trocknungsluftströmung mindestens zum Teil aufneu einzuspritzen,
    - ein Mittel (12) zur Reinigung des genannten, beim Trocknen entstehenden gasförmigen Fluidums (16) und der genannten zurückgewonnenen Heizgase (30), wobei das genannte Mittel aus dem Brenner (13) und dem Blassystem (47) besteht,
    umfaßt.
  9. Behandlungsanlage nach Anspruch 8, dadurch gekennzeichnet, daß die Trocknungkammer (1) innerhalb des Raumes (9), eine motorgetriebene Trommel (10) umfaßt, die geeignet ist, die zu trocknenden Abfälle aufzunehmen und sie ständig zu rühren und eine Abfallvorschubbewegung (7) vom Eintritt (5) bis zum Austritt (8) zu erzeugen, wobei die genannte Trommel (10) in der genannten Heißluftströmung angeordnet ist.
  10. Behandlungsanlage nach Anspruch 9, dadurch gekennzeichnet, daß die genannte Trommel (10) inwendig an dieser letzten befestige Schaufeln (49) umfaßt und waagerecht angeordnet ist, wobei deren Achse geneigt ist, zum Erlauben einer Fortbewegung (7) der Abfälle vom Eintritt (5) bis zum Austritt (8).
  11. Behandlungsanlage nach Anspruch 8, dadurch gekennzeichnet, daß sie Mittel (3, 4) zur Zurückgewinnung der Feststoffe und zur Zurückgewinnung und Behandlung der bei der Thermolyse entstehenden gasförmigen Produkte umfaßt.
  12. Behandlungsanlage nach Anspruch 11, dadurch gekennzeichnet, daß die Trocknungskammer (1), Thermolysekammer (2) und die Zurückgewinnungsmittel (3) übereinanderliegen und aufeinaderfolgend reihenmäßig so angeordnet sind, daß eine sequenzielle kontinuierliche Fortbewegung unter Schwerekraft der Abfälle vom Eintritt (5) der Anlage bis zu deren Austritt (6) erlaubt wird und daß ein temperatur- und/oder druckstabiler Betrieb in jeder Kammer (1, 2, 3) erreicht werden Kann.
  13. Behandlungsanlage nach Anspruch 11, dadurch gekennzeichnet, daß die Thermolysekammer einen motorgetriebenen Rotor (23) umfaßt, der zum Erlauben einer Fortbewegung der Abfälle und/oder der Feststoffe vom Eintritt (8) bis zum Austritt (27) des Reaktors mit innerhalb der gennanten Primärraum (21) vorgesehenen orientierten Schaufeln (24) ausgerüstet ist.
  14. Behandlungsanlage nach Anspruch 11, dadurch gekennzeichnet, daß sie außerdem mindestens zwei Schleusen (31, 32) umfaßt, wobei die eine (31) die Trocknungskammer (1) und die Thermolysekammer (2) verbindet und die andere (32) die Thermolysekammer (2) und die Feststoffzurückgewinnungsmittel (3) verbindet, um, einerseits, die Drücke auszugleichen und, andererseits, eine Neutralisierung des ein- und austretenden Produkts zu erlauben.
  15. Behandlungsanlage nach Anspruch 11, dadurch gekennzeichnet, daß die Mittel (4) zur Zurückgewinnung der bei der Thermolyse entstehenden gasförmigen Produkte aus einem geschlossenen Kreislauf (33) bestehen, der Umlaufmittel (34) für die genannten gasförmigen Produkte, einen "brennbare gasförmige Bestandteile - Teere in gasförmigem Zustand"-Trenner (35) des Zerstäubertyps, einen Gasreinigungskreislauf, einen Behandlungskreislauf für flüssige Ausflüße (37) umfaßt.
  16. Behandlungsanlage nach Anspruch 8, dadurch gekennzeichnet, daß die genannten Mittel (12, 13, 47) zur Erzeugung einer Heißluftströmung im genannten Trocknungsraum und die genannten Mittel (12, 13) zur Reinigung des beim Trocknen entstehenden gasförmigen Fluidums im wesentlichen aus einem Brenner (13), dessen Flamme mindestens 850°C erreicht, und einem stromaufwärts zum Brenner befindlichen Blassystem (47) umfaßt, das geeignet ist, einen Gasfluß auf die Flamme zu richten, dessen Geschwindigkeit derart ist, daß die genannten Gase die Flamme mindestens zwei Sekunden lang durchqueren.
EP89403348A 1989-11-07 1989-12-04 Verfahren und Anlage zur Behandlung von städtischen und industriellen Abfällen Expired - Lifetime EP0426925B1 (de)

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AT89403348T ATE93883T1 (de) 1989-11-07 1989-12-04 Verfahren und anlage zur behandlung von staedtischen und industriellen abfaellen.

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FR8915065 1989-11-07
FR8915065A FR2654112B1 (fr) 1989-11-07 1989-11-07 Procede et installation de traitement de dechets urbains et/ou industriels.

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EP0426925A1 EP0426925A1 (de) 1991-05-15
EP0426925B1 true EP0426925B1 (de) 1993-09-01

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DE (2) DE68908890T2 (de)
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FR (1) FR2654112B1 (de)

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FR2674149B1 (fr) * 1991-03-20 1994-04-15 Pierre Chaussonnet Systeme pour le traitement par thermolyse, en absence totale d'oxygene des produits solides dont le rejet est prejudiciable pour l'environnement.
FR2678850B1 (fr) * 1991-07-09 1998-12-24 Inst Francais Du Petrole Procede et installation de thermolyse de dechets industriels et/ou menagers.
FR2679009B1 (fr) * 1991-07-09 1997-12-12 Inst Francais Du Petrole Procede et dispositif de traitement de dechets par contact direct
DE19843613C2 (de) * 1998-09-23 2000-12-07 Harald Martin Verfahren und Vorrichtung zur Aufarbeitung von Abprodukten und Abfallstoffen
DE19937524A1 (de) 1999-08-03 2001-02-15 Harald Martin Verfahren und Vorrichtung zum Beseitigen von Abprodukten und Abfallstoffen
DE19937521A1 (de) 1999-08-03 2001-02-15 Harald Martin Verfahren und Vorrichtung zum Trocknen, Trennen, Klassieren und Zersetzen von Abprodukten
US6735814B2 (en) 2000-10-05 2004-05-18 Mister Services, Inc. Apparatus for cleaning hard-to-reach areas
DE102010049379A1 (de) 2010-10-26 2012-04-26 Mioba Mitteldeutscher Industrie-Ofenbau Gmbh & Co. Kg Vorrichtung zum energetischen Verwerten von festen organischen Abfällen
DE102012004632B4 (de) * 2012-03-06 2017-09-14 Ulrich Finger KUP-Reaktor für die Vergasung von Biomasse, zur Strom- und Wärmeerzeugung

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DE2842126C3 (de) * 1978-09-28 1982-03-04 Deutsche Anlagen-Leasing Service Gmbh, 6500 Mainz Pyrolyse-Reaktor zur Umsetzung von Abfall
DE2855510B1 (de) * 1978-12-22 1980-04-17 Peter Voelskow Verfahren und Anlage zur thermischen Verwertung von Abfaellen
DE2950324C2 (de) * 1979-12-14 1983-02-10 Deutsche Kommunal-Anlagen Miete GmbH, 8000 München Verfahren zur Herstellung von festen Brennstoffen aus Abfällen
DE3018572C2 (de) * 1980-05-14 1983-07-21 Deutsche Kommunal-Anlagen Miete GmbH, 8000 München Indirekt beheizter Drehrohrofen für die Pyrolyse von Abfallstoffen, bei dem die Pyrolysegase zur Verbrennung dem Brenner des Drehrohrofens zugeführt werden
FI881306A (fi) * 1988-03-19 1989-09-19 Ukrainsky Nauchno-Issledovatelsky Institut Metallov/(Ukrniimet) Foerfarande och anordning foer vaermebehandling av icke-komposterbara hushaollsavfall.

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ES2027217T1 (es) 1992-06-01
FR2654112B1 (fr) 1993-12-17
DE426925T1 (de) 1992-11-26
DE68908890T2 (de) 1994-04-28
ATE93883T1 (de) 1993-09-15
ES2027217T3 (es) 1994-01-16
FR2654112A1 (fr) 1991-05-10
DE68908890D1 (de) 1993-10-07
EP0426925A1 (de) 1991-05-15

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