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EP0949476A2 - Method and device for drying and/or heating granulated respectively powdery materials - Google Patents

Method and device for drying and/or heating granulated respectively powdery materials Download PDF

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Publication number
EP0949476A2
EP0949476A2 EP99104276A EP99104276A EP0949476A2 EP 0949476 A2 EP0949476 A2 EP 0949476A2 EP 99104276 A EP99104276 A EP 99104276A EP 99104276 A EP99104276 A EP 99104276A EP 0949476 A2 EP0949476 A2 EP 0949476A2
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EP
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Prior art keywords
combustion chamber
feed
feed material
annular gap
flue gas
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Granted
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EP99104276A
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German (de)
French (fr)
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EP0949476B1 (en
EP0949476A3 (en
Inventor
Jens Peter Nissen
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Lintec GmbH and Co KG
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • F27B15/003—Cyclones or chain of cyclones

Definitions

  • the invention relates to a method and one used to carry it out Device for drying and heating dusty or fine-grained Fabrics.
  • feedstocks Known methods for drying and heating dusty or fine-grained substances, hereinafter referred to as feedstocks, use the substance-specific property - very fast heat transfer between Heat transfer medium and feed material as a result of the small grain size - only conditionally out.
  • the object of the invention is to achieve the highest possible Flue gas temperatures and low additional air balance, below Utilization of the short given by the grain size Heat transfer times between the heat transfer medium and the input material To dry and heat feed material without a Temperature damage to the system or the feed material occurs.
  • the method according to the invention uses the fineness (small Particle size) of the feed material, which has a quick heat balance the surrounding medium. Furthermore, the pneumatic Conveyability of the input material is used, which is simultaneously a homogeneous Mixing of the input material with the pumped medium causes.
  • the conveying air acts as a temperature buffer too strong and fast Temperature rise counter. This property can be exploited by Cyclone effect can be increased.
  • the input material passed tangentially into the combustion chamber. Due to the centrifugal force Feed material pressed against the wall of the outer chamber, so that the Conveying air between the feed and the burner flame Can form protective layer.
  • the direct action of the Burner flame can be avoided by using e.g. one External chamber is supplied, which is an annular gap around the combustion chamber forms.
  • one External chamber is supplied, which is an annular gap around the combustion chamber forms.
  • Flue gas and feed material are first merged after passing the burner flame.
  • the pneumatic feed pressure of the feed material can be brought together used for intensive mixing of the feed material with the flue gases become.
  • the Venturi principle is used here.
  • the device essentially consists of a combustion chamber 1, in which the burner flame 4 generated by a burner 3 burns out.
  • the flue gas 5 is discharged through the discharge 14.
  • the feed material 6, distributed over the circumference of the combustion chamber wall 2, is likewise fed to the combustion chamber 1 on the burner side.
  • the feed material 6 heats up while the flue gases 5 cool down.
  • the even distribution of the feed material 6 over the circumference of the combustion chamber wall 2 can be achieved, for example, by the material input 7 is carried out by means of pneumatic conveying by tangential blowing in of the feed 6.
  • the cyclone effect that occurs causes the feed 6 to concentrate on the combustion chamber wall 2 and the conveying air serves as an insulating layer between the feed 6 and the burner flame 4.
  • the arrangement of the device not still tied to the vertical setup.
  • the combustion chamber 1 is additionally formed by an outer chamber 9 envelops.
  • the material entry 7 takes place in the annular gap 8 generated thereby.
  • the combustion chamber 1 can, as shown in Fig. 2, as a pipe section be designed so that flue gas 5 and feed material 6 only in the Mix subsequent mixing chamber 12. The mixing is done by intensifies the feed pressure of the feed material 6. But it is also conceivable that there is no connection between combustion chamber 1 and annular gap 8, so that there is no mixing of the feed material 6 with the flue gas 5 is coming. This design also enables operation in the Countercurrent process, i.e. the direction of flow of the feed 6 that of the flue gas 5 opposite.
  • Fig. 3 shows a device in which the combustion chamber 1 in addition a combustion chamber floor 10 is completed.
  • the combustion chamber floor 10 separates combustion chamber 1 and mixing chamber 12.
  • the feed 6 is also in the Mixing chamber 12 passed in Fig. 3, for example by a deflection approx. 180 °. Due to the delivery pressure of the feed 6 takes place in the Mixing chamber 12 intensive mixing with the flue gas 5. From the Mixing chamber 12 passes the flue gas feed mixture through the Catch area 13 for discharge 14.
  • solutions are also conceivable for which the flue gas is discharged without into the mixing chamber 12 arrive and without mixing with the insert 6.
  • Fig. 4 shows a device that an even more intensive mixing of the Feed 6 with the flue gas 5 causes, with simultaneous suction the flue gases 5 from the combustion chamber 1.
  • the annular gap 8 for the feed material 6 in the area of merging with the flue gas 5 as Nozzle 11 formed.
  • the combustion chamber floor 10 is adapted and forms with the outer chamber 9, the driving and mixing chamber 12 of a jet pump. This process, also known as the Venturi principle, also takes place in the Water jet pump application.
  • the capture space 13 can also here by the Shaping of the combustion chamber bottom 10 are formed by the same.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

Bei Verfahren zur Trocknung und/oder Erhitzung staubförmiger bzw. feinkörniger Stoffe wird die Übertragung der Energiemenge pro Zeiteinheit und die max. vertretbare Temperaturdifferenz zwischen Einsatzstoff und Wärmeträger durch auftretende Temperaturschäden an der Anlage oder am Einsatzstoff begrenzt. Beim erfindungsgemäßen Verfahren wird zum Einen durch Fluidisierung und kontinuierliche intensive Mischung des Einsatzstoffes eine schnelle Wärmevergleichmäßigung erreicht, zum Anderen eine zu intensive Wärmebelastung durch Pufferung verhindert. Gegenüber den bekannten Verfahren ist bei gleicher Anlagenleistung der verfahrenstechnische Aufwand geringer und das erfindungsgemäße Verfahren somit wirtschaftlicher.In processes for drying and / or heating dusty or fine-grained substances is the transfer of the amount of energy per unit of time and the max. acceptable temperature difference between feed and Heat transfer medium due to temperature damage to the system or Limited input material. In the method according to the invention, on the one hand through fluidization and continuous intensive mixing of the feed achieved a quick heat equalization, on the other hand one too intensive heat stress prevented by buffering. Compared to the known method is with the same system performance procedural effort less and the invention The process is therefore more economical.

Die Vorrichtung besteht z.B. aus einer Brennkammer 1, in die der Einsatzstoff 6 tangential 7 mittels einer pneumatischen Förderung eingeblasen wird. Der dabei auftretende Zyklon-Effekt bewirkt, daß sich der Einsatzstoff 6 an der Brennkammerwand 2 konzentriert und die Förderluft als Isolierschicht zur Pufferung zwischen Einsatzstoff 6 und Brennerflamme 4 dient. Sollte die Pufferung nicht ausreichen, kann durch Hinzufügen einer Außenkammer 9 der Einsatzstoff 6 in einem Ringspalt 8 geführt werden.

Figure 00000001
The device consists, for example, of a combustion chamber 1 into which the feed material 6 is blown tangentially 7 by means of a pneumatic conveyance. The cyclone effect that occurs causes the feed 6 to concentrate on the combustion chamber wall 2 and the conveying air serves as an insulating layer for buffering between the feed 6 and the burner flame 4. If the buffering is not sufficient, the feed material 6 can be guided in an annular gap 8 by adding an outer chamber 9.
Figure 00000001

Description

Die Erfindung betrifft ein Verfahren und eine zu dessen Ausführung dienende Vorrichtung zur Trocknung und Erhitzung staubförmiger bzw. feinkörniger Stoffe.The invention relates to a method and one used to carry it out Device for drying and heating dusty or fine-grained Fabrics.

Bekannte Verfahren zur Trocknung und Erhitzung staubförmiger bzw. feinkörniger Stoffe, im Folgenden als Einsatzstoffe bezeichnet, nutzen die stoffspezifische Eigenschaft - sehr schneller Wärmeübergang zwischen Wärmeträger und Einsatzstoff als Folge der geringen Komgröße - nur bedingt aus.Known methods for drying and heating dusty or fine-grained substances, hereinafter referred to as feedstocks, use the substance-specific property - very fast heat transfer between Heat transfer medium and feed material as a result of the small grain size - only conditionally out.

So besitzt die indirekten Wärmeübertragung im Rührkessel einen geringen Wirkungsgrad und erfordert einen großen technischen Aufwand.The indirect heat transfer in the stirred kettle is low Efficiency and requires a great deal of technical effort.

Bei der direkten Wärmeübertragung im Stromtrockner oder Wirbelschichttrockner ist der Wirkungsgrad verbessert. Die Rauchgase werden zur Vermeidung von Temperaturschäden an der Anlage, bzw. am Einsatzstoff, nicht direkt mit dem zu trocknenden bzw. zu erhitzenden Stoff in Berührung gebracht, sondern vorher in einem Heißgaserzeuger auf entsprechend niedrigere Temperaturen heruntergekühlt. Durch die relativ große Gasumwälzung wird jedoch zum Einen der Lufthaushalt stark aufgebläht, zum Anderen der Wirkungsgrad verringert. Der vergrößerte Lufthaushalt erfordert wiederum größere Abscheideanlagen zur anschließenden Separierung des Einsatzstoffes. Beide Sachverhalte zusammen führen zu einer Ausweitung der verfahrenstechnischen Anlage.With direct heat transfer in the electricity dryer or Fluid bed dryer efficiency is improved. The smoke gases are used to avoid temperature damage to the system or Input material, not directly with the material to be dried or heated in Brought into contact, but previously in a hot gas generator cooled down correspondingly lower temperatures. By the relative large gas circulation, on the one hand, the air balance becomes strong inflated, on the other hand the efficiency is reduced. The enlarged Air budget in turn requires larger separation plants subsequent separation of the feed. Both issues together lead to an expansion of the process plant.

Die Aufgabe der Erfindung besteht darin, mit möglichst hohen Rauchgastemperaturen und geringem zusätzlichem Lufthaushalt, unter Ausnutzung der durch die Korngröße gegebenen kurzen Wärmeübergangszeiten zwischen Wärmeträger und Einsatzstoff, den Einsatzstoff zu trocknen und zu erhitzen, ohne daß eine Temperaturschädigung an der Anlage oder am Einsatzstoff auftritt.The object of the invention is to achieve the highest possible Flue gas temperatures and low additional air balance, below Utilization of the short given by the grain size Heat transfer times between the heat transfer medium and the input material To dry and heat feed material without a Temperature damage to the system or the feed material occurs.

Das Verfahren entsprechend der Erfindung nutzt die Feinheit (kleine Partikelgröße) des Einsatzstoffes, die einen schnellen Wärmeausgleich mit dem umgebenden Medium ermöglicht. Weiterhin wird die pneumatische Förderbarkeit des Einsatzstoffes genutzt, die gleichzeitig eine homogene Vermischung des Einsatzstoffes mit dem Fördermedium bewirkt. Durch die direkte Zugabe des Einsatzstoffes in die Brennkammer, d.h. der Einsatzstoff ist der direkten Flammeinwirkung ausgesetzt, wird eine schnelle und effektive Trocknung und Erhitzung des Einsatzstoffes erreicht. Die Förderluft wirkt als Temperaturpuffer einem zu starken und schnellen Temperaturanstieg entgegen. Diese Eigenschaft kann durch Ausnutzung des Zyklon-Effektes noch gesteigert werden. Hierbei wird der Einsatzstoff tangential in die Brennkammer geleitet. Durch die Fliehkraft wird der Einsatzstoff an die Wandung der Außenkammer gedrängt, so daß die Förderluft zwischen dem Einsatzstoff und der Brennerflamme eine Schutzschicht bilden kann.The method according to the invention uses the fineness (small Particle size) of the feed material, which has a quick heat balance the surrounding medium. Furthermore, the pneumatic Conveyability of the input material is used, which is simultaneously a homogeneous Mixing of the input material with the pumped medium causes. Through the direct addition of the feed to the combustion chamber, i.e. the feed is exposed to direct flame exposure, becomes quick and effective drying and heating of the feed material achieved. The conveying air acts as a temperature buffer too strong and fast Temperature rise counter. This property can be exploited by Cyclone effect can be increased. Here the input material passed tangentially into the combustion chamber. Due to the centrifugal force Feed material pressed against the wall of the outer chamber, so that the Conveying air between the feed and the burner flame Can form protective layer.

Bei temperaturempfindlichen Einsatzstoffen kann die direkte Einwirkung der Brennerflamme dadurch vermieden werden, daß der Einsatzstoff z.B. einer Außenkammer zugeführt wird, die um die Brennkammer einen Ringspalt bildet. Durch Wahl der Wandungsstärke und des Materials der Brennkammer ist der Wärmedurchgang steuerbar. Rauchgas und Einsatzstoff werden erst nach Passieren der Brennerflamme zusammengeführt. Bei der Zusammenführung kann der pneumatische Förderdruck des Einsatzstoffes zur intensiven Vermischung des Einsatzstoffes mit den Rauchgasen genutzt werden. Hierbei findet das Venturi-Prinzip Anwendung. Auch kann eine Zusammenführung der Rauchgase mit dem Einsatzstoff ganz vermieden werden, was zu einer einfachen Separierung des Einsatzstoffes führt, da nur ein relativ geringer Anteil an Förderluft abgetrennt werden muß.In the case of temperature-sensitive feedstocks, the direct action of the Burner flame can be avoided by using e.g. one External chamber is supplied, which is an annular gap around the combustion chamber forms. By choosing the wall thickness and the material of the combustion chamber the heat transfer is controllable. Flue gas and feed material are first merged after passing the burner flame. In the The pneumatic feed pressure of the feed material can be brought together used for intensive mixing of the feed material with the flue gases become. The Venturi principle is used here. Also one can Merging of the flue gases with the feed material completely avoided be, which leads to a simple separation of the input material, since only a relatively small proportion of conveying air has to be separated.

Man hat bei Anwendung des erfindungsgemäßen Verfahrens den Vorteil einer effektiven Energienutzung, verbunden mit einem geringen apparativen Aufwand.One has the advantage when using the method according to the invention an effective use of energy combined with a small amount of equipment Expenditure.

In den Zeichnungen wird die Erfindung an Hand von Ausführungsbeispielen näher erläutert. Es zeigen:

  • Fig. 1, Fig 2 und Fig 3 jeweils eine Ansicht mit Draufsicht möglicher Vorrichtungen.
  • Fig 4 eine Teilansicht einer Vorrichtung nach Anspruch 8.
    • In the drawings, the invention is explained in more detail using exemplary embodiments. Show it:
  • 1, 2 and 3 each show a top view of possible devices.
  • 4 shows a partial view of a device according to claim 8.

    • Wie in den Figuren 1 dargestellt, besteht die Vorrichtung im Wesentlichen aus einer Brennkammer 1, in der die von einem Brenner 3 erzeugte Brennerflamme 4 ausbrennt. Das Rauchgas 5 wird durch den Austrag 14 abgeleitet. Der Einsatzstoff 6 wird, verteilt über den Umfang der Brennkammerwand 2, ebenfalls Brennerseitig der Brennkammer 1 zugeführt. Bei vertikaler Anordnung der Brennkammer 1 und aufgebautem

    Figure 00030001
    Sturzbrenner" 3 und weiterhin entsprechendem Abstand zwischen Brennerflamme 4 und Einsatzstoff 6 findet eine Erwärmung des Einsatzstoffes 6 bei gleichzeitiger Abkühlung der Rauchgase 5 statt. Die gleichmässige Verteilung des Einsatzstoffes 6 über den Umfang der Brennkammerwand 2 kann zum Beispiel dadurch erreicht werden, daß der Materialeintrag 7 durch tangentiales Einblasen des Einsatzstoffes 6 mittels einer pneumatischen Förderung erfolgt. Der dabei auftretende Zyklon-Effekt bewirkt, daß sich der Einsatzstoff 6 an der Brennkammerwand 2 konzentriert und die Förderluft als Isolierschicht zwischen Einsatzstoff 6 und Brennerflamme 4 dient. Darüber hinaus ist die Anordnung der Vorrichtung nicht Weiterhin an die vertikale Aufstellung gebunden.As shown in FIG. 1, the device essentially consists of a combustion chamber 1, in which the burner flame 4 generated by a burner 3 burns out. The flue gas 5 is discharged through the discharge 14. The feed material 6, distributed over the circumference of the combustion chamber wall 2, is likewise fed to the combustion chamber 1 on the burner side. With a vertical arrangement of the combustion chamber 1 and built
    Figure 00030001
    Fall burner "3 and the corresponding distance between the burner flame 4 and the feed material 6, the feed material 6 heats up while the flue gases 5 cool down. The even distribution of the feed material 6 over the circumference of the combustion chamber wall 2 can be achieved, for example, by the material input 7 is carried out by means of pneumatic conveying by tangential blowing in of the feed 6. The cyclone effect that occurs causes the feed 6 to concentrate on the combustion chamber wall 2 and the conveying air serves as an insulating layer between the feed 6 and the burner flame 4. In addition, the arrangement of the device not still tied to the vertical setup.

    Durch entsprechende Abstimmung der wesentlichen Parameter wie z.B. Menge des Einsatzstoffes 6, Durchmesser und Länge der Brennkammer 1, Formgebung der Brennerflamme 4, Erzeugung eines Unterdruckes im Austrag 14 und somit auch in der Brennkammer 1 usw., kann ein gezielter Temperaturanstieg des Einsatzstoffes 6 erreicht werden, ohne daß die Ausbrandzone der Brennerflamme 4 gestört wird. Der störungsfreie Ausbrand der Brennerflamme 4 ist zur Erzielung einer einwandfreien Verbrennung mit geringen Emissionen Voraussetzung.By appropriate coordination of the essential parameters such as Amount of feed 6, diameter and length of combustion chamber 1, Shaping the burner flame 4, generating a negative pressure in the Discharge 14 and thus also in the combustion chamber 1 etc. can be a more targeted one Temperature rise of the feed material 6 can be achieved without the Burnout zone of the burner flame 4 is disturbed. The trouble-free burnout the burner flame 4 is to achieve perfect combustion with low emissions requirement.

    In Fig. 2 wird die Brennkammer 1 zusätzlich durch ein Außenkammer 9 umhüllt. In den dadurch erzeugten Ringspalt 8 erfolgt der Materialeintrag 7. Die Brennkammer 1 kann, wie in Fig. 2 dargestellt, als Rohrabschnitt ausgebildet sein, so daß Rauchgas 5 und Einsatzstoff 6 sich erst in der nachfolgenden Mischkammer 12 vermischen. Die Vermischung wird durch den Förderdruck des Einsatzstoffes 6 intensiviert. Es ist aber auch denkbar, daß zwischen Brennkammer 1 und Ringspalt 8 keine Verbindung besteht, so daß es zu keiner Vermischung des Einsatzstoffes 6 mit dem Rauchgas 5 kommt. Diese Bauart ermöglicht auch einen Betrieb im Gegenstromverfahren, d.h. die Strömungsrichtung des Einsatzstoffes 6 ist der des Rauchgases 5 entgegengesetzt. 2, the combustion chamber 1 is additionally formed by an outer chamber 9 envelops. The material entry 7 takes place in the annular gap 8 generated thereby. The combustion chamber 1 can, as shown in Fig. 2, as a pipe section be designed so that flue gas 5 and feed material 6 only in the Mix subsequent mixing chamber 12. The mixing is done by intensifies the feed pressure of the feed material 6. But it is also conceivable that there is no connection between combustion chamber 1 and annular gap 8, so that there is no mixing of the feed material 6 with the flue gas 5 is coming. This design also enables operation in the Countercurrent process, i.e. the direction of flow of the feed 6 that of the flue gas 5 opposite.

    Fig. 3 zeigt eine Vorrichtung, bei der die Brennkammer 1 zusätzlich durch einen Brennkammerboden 10 abgeschlossen wird. Der Brennkammerboden 10 trennt Brennkammer 1 und Mischkammer 12. Gleichzeitig bildet der Brennkammerboden 10 durch seine Formgebung die Mischkammer 12. Zwischen Brennkammer 1 und Mischkammer 12 verbleiben Verbindungen, durch die das Rauchgas 5 in die Mischkammer 12 gelangen kann, zum Beispiel ein Ringspalt 8 wie in Fig.3. Der Einsatzstoff 6 wird ebenfalls in die Mischkammer 12 geleitet, in Fig. 3 zum Beispiel durch eine Umlenkung um ca. 180°. Durch den Förderdruck des Einsatzstoffes 6 erfolgt in der Mischkammer 12 eine intensive Vermischung mit dem Rauchgas 5. Aus der Mischkammer 12 gelangt das Rauchgas-Einsatzstoff-Gemisch über den Fangraum 13 zum Austrag 14. Es sind aber auch Lösungen denkbar, bei denen das Rauchgas abgeleitet wird, ohne in die Mischkammer 12 zu gelangen und ohne sich mit dem Einsastzstoff 6 zu vermischen.Fig. 3 shows a device in which the combustion chamber 1 in addition a combustion chamber floor 10 is completed. The combustion chamber floor 10 separates combustion chamber 1 and mixing chamber 12. At the same time, the The shape of the combustion chamber floor 10 and the mixing chamber 12. Connections remain between combustion chamber 1 and mixing chamber 12, through which the flue gas 5 can get into the mixing chamber 12 for Example an annular gap 8 as in Fig.3. The feed 6 is also in the Mixing chamber 12 passed in Fig. 3, for example by a deflection approx. 180 °. Due to the delivery pressure of the feed 6 takes place in the Mixing chamber 12 intensive mixing with the flue gas 5. From the Mixing chamber 12 passes the flue gas feed mixture through the Catch area 13 for discharge 14. However, solutions are also conceivable for which the flue gas is discharged without into the mixing chamber 12 arrive and without mixing with the insert 6.

    Fig. 4 zeigt eine Vorrichtung, die eine noch intensivere Vermischung des Einsatzstoffes 6 mit dem Rauchgas 5 bewirkt, bei gleichzeitiger Absaugung der Rauchgase 5 aus der Brennkammer 1. Hierzu wird der Ringspalt 8 für den Einsatzstoff 6 im Bereich der Zusammenführung mit dem Rauchgas 5 als Düse 11 ausgebildet. Der Brennkammerboden 10 wird angepaßt und bildet mit der Außenkammer 9 die Treib.- und Mischkammer 12 einer Strahlpumpe. Dieses auch als Venturi-Prinzip bekannte Verfahren findet auch bei der Wasserstrahlpumpe Anwendung. Der Fangraum 13 kann auch hier durch die Formgebung des Brennkammerbodens 10 von demselbigen gebildet werden.Fig. 4 shows a device that an even more intensive mixing of the Feed 6 with the flue gas 5 causes, with simultaneous suction the flue gases 5 from the combustion chamber 1. For this purpose, the annular gap 8 for the feed material 6 in the area of merging with the flue gas 5 as Nozzle 11 formed. The combustion chamber floor 10 is adapted and forms with the outer chamber 9, the driving and mixing chamber 12 of a jet pump. This process, also known as the Venturi principle, also takes place in the Water jet pump application. The capture space 13 can also here by the Shaping of the combustion chamber bottom 10 are formed by the same.

    BezugszeichenlisteReference list

    11
    BrennkammerCombustion chamber
    22nd
    BrennkammerwandCombustion chamber wall
    33rd
    Brennerburner
    44th
    BrennerflammeBurner flame
    55
    RauchgasFlue gas
    66
    EinsatzstoffFeedstock
    77
    MaterialeintragMaterial entry
    88th
    RingspaltAnnular gap
    99
    AußenkammerOuter chamber
    1010th
    Brennkammerboden Combustion chamber floor
    1111
    Düsejet
    1212th
    MischkammerMixing chamber
    1313
    FangraumCatch room
    1414
    AustragDischarge
    1515
    Isolierunginsulation

    Claims (10)

    Verfahren und Vorrichtung zur Trocknung und Erhitzung staubförmiger bzw. feinkörniger Stoffe mit folgenden Merkmalen: Einer Brennkammer (1) wird durch einen oder mehrere Materialeinträge (7) der Einsatzstoff (6) zugeleitet. Der Materialeintrag/die Materialeinträge (7) ist/sind so angeordnet, daß der Einsatzstoff (6) zwischen Brennkammerwand (2) und Brennerflamme (4) geleitet wird. Rauchgas (5) und Einsatzstoff (6) verlassen die Brennkammer (1) als Gemisch. Method and device for drying and heating dusty or fine-grained substances with the following features: The feedstock (6) is fed to a combustion chamber (1) through one or more material entries (7). The material input (s) (7) is / are arranged so that the feed material (6) is passed between the combustion chamber wall (2) and the burner flame (4). Flue gas (5) and feed material (6) leave the combustion chamber (1) as a mixture. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Einsatzstoff (6) in der Ausbrandzone mittels Druckluft in der Art geleitet wird, daß ein störungsfreier Ausbrand der Brennerflamme (4) gewährleistet ist.A method according to claim 1, characterized in that the starting material (6) in the burnout zone by means of compressed air in such a way that a trouble-free burnout of the burner flame (4) is guaranteed. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Einsatzstoff (6) in der Ausbrandzone der Brennerflamme (4) mittels eines Behältnis so geleitet wird, daß deren störungsfreier Ausbrand gewährleistet ist. Dies Behältnis kann z.B. in Form eines Ringspaltes (8) zwischen der Brennkammerwand (2) und einer zusätzlichen Außenkammer (9) gebildet werden.A method according to claim 1, characterized in that the starting material (6) in the burnout zone of the burner flame (4) by means of a container is directed that their trouble-free burnout is guaranteed. This Container can e.g. in the form of an annular gap (8) between the Combustion chamber wall (2) and an additional outer chamber (9) are formed become. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Einsatzstoff (6) pneumatisch gefördert wird.Method according to one of claims 1 to 3, characterized in that that the feed material (6) is conveyed pneumatically. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Einsatzstoff (6) tangential in die Brennkammer (1) bzw in den Ringspalt (8) geleitet wird, so daß der Einsatzstoff (6) durch den
    Figure 00060001
    Zyklon-Effekt" an der Brennkammerwand (2) bzw. an der Außenkammer (9) entlang gleitet.     Method according to one of claims 1 to 4, characterized in that the feed material (6) is passed tangentially into the combustion chamber (1) or into the annular gap (8), so that the feed material (6) passes through the
    Figure 00060001
    Cyclone effect "on the combustion chamber wall (2) or on the outer chamber (9) slides along.         Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß Brennkammer (1) bzw Brennkammer (1), und Ringspalt (8) in einer Mischkammer (12) münden, in der sich das Rauchgas (5) mit dem Einsatzstoff (6) vermischt.Method according to one of claims 1 to 5, characterized in that that combustion chamber (1) or combustion chamber (1), and annular gap (8) in one Mixing chamber (12) open, in which the flue gas (5) with the Feedstock (6) mixed. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der pneum. Förderdruck des Einsatzstoffes (6) zur intensiven Vermischung mit den Rauchgasen (5) genutzt wird.Method according to one of claims 1 to 6, characterized in that that the pneum. Delivery pressure of the feed material (6) for intensive Mixing with the flue gases (5) is used. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß durch die mech. Gestaltung des Ringspaltes (8) und dem pneum. Förderdruck des Einsatzstoffes (6) die Rauchgase (5) nach dem Venturi-Prinzip angesaugt, in der Mischkammer (12) intensiv mit dem Einsatzstoff (6) vermischt und das Gemisch anschließend nach Durchgang durch den Fangraum (13) in den Austrag (14) gelangt.Method according to one of claims 1 to 7, characterized in that that through the mech. Design of the annular gap (8) and the pneum. Delivery pressure of the feed material (6) the flue gases (5) according to the Venturi principle sucked in, in the mixing chamber (12) intensively with the feed material (6) mixed and then the mixture after passing through the Catch chamber (13) reaches the discharge (14). Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Rauchgas-Einsatzstoff-Gemisch mittels im Materialaustrag (14) vorhandenem Unterdruck aus dem Fangraum (13) abgesaugt und der weiteren verfahrenstechnischen Behandlung zugeführt wird.Method according to one of claims 1 to 9, characterized characterized in that the flue gas-feed mixture by means of Material discharge (14) existing negative pressure from the catching space (13) aspirated and fed to further process engineering treatment becomes. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zwischen Brennkammer (1) und Ringspalt (8) keine Verbindung besteht, so das Einsatzstoff (6) und Rauchgas (5) getrennt geführt werden.Method according to one of claims 1 to 5, characterized in that that there is no connection between the combustion chamber (1) and the annular gap (8), so the feedstock (6) and flue gas (5) are carried separately.
    EP99104276A 1998-03-04 1999-03-03 Method and device for drying and heating granulated respectively powdery materials Expired - Lifetime EP0949476B1 (en)

    Applications Claiming Priority (2)

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    DE19809067 1998-03-04
    DE19809067A DE19809067A1 (en) 1998-03-04 1998-03-04 Device for drying and heating dust-form and fine granular material

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    EP0949476A3 EP0949476A3 (en) 1999-12-29
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    CN119178167B (en) * 2024-10-10 2025-09-23 北京航空航天大学 A H2 combustion chamber head structure for high altitude and low pressure environments

    Family Cites Families (15)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2973727A (en) * 1957-02-22 1961-03-07 Orr & Sembower Inc Pulverised fuel burner
    US3596890A (en) * 1968-02-19 1971-08-03 Alastair G M Small Drying apparatus
    GB1208033A (en) * 1968-05-09 1970-10-07 Stanley Horrocks A method of and apparatus for mixing a high temperature gas stream containing products of combustion with a low temperature gas or air stream containing solid particles
    GB1453834A (en) * 1973-02-23 1976-10-27 Barr Murphy Ltd Method of and apparatus for drying particulate materials s
    GB1570276A (en) * 1976-12-31 1980-06-25 White J Method and apparatus for heating particulate solids
    DE2808874C2 (en) * 1978-03-02 1985-01-24 Smit Ovens Nijmegen B.V., Nijmegen Device for the combustion of combustible substances entrained in a gas stream or for heating air
    US4190415A (en) * 1978-07-10 1980-02-26 Singrey Raymond E Chip drying and cleaning device
    FR2438679A1 (en) * 1978-10-11 1980-05-09 Nal Etu Exper Machinisme Centr METHOD AND APPARATUS FOR HEAT TREATMENT OF COMBUSTIBLE MATERIALS
    FR2543280B1 (en) * 1983-03-23 1987-12-04 Gaz De France METHOD AND PLANT FOR HEAT TREATMENT OF DIVIDED PRODUCTS
    US5014631A (en) * 1988-06-09 1991-05-14 Jgc Corporation Cyclone furnace
    DE3915740A1 (en) * 1989-05-13 1990-11-15 Ludger Schumacher High temp. processing unit for e.g. annealing or melting - has reactor with oven chamber having tangentially arranged feed openings in sidewalls and controllable bucket wheel discharge
    US5007181A (en) * 1990-01-22 1991-04-16 Gte Products Corporation Deagglomerating direct-fired flash dryer for drying stir-in phosphors and method of using same
    DE4115348C2 (en) * 1991-05-10 2000-08-10 Deutz Ag Process for high-temperature treatment of fine-grained solids in a melting cyclone
    DE4123306C2 (en) * 1991-07-13 2000-05-25 Deutz Ag Plant for the thermal treatment of flour-like raw materials
    DK138991A (en) * 1991-07-24 1993-01-25 Cimbria Unigrain Ltd DEVICE FOR DRYING SLAM AND LIKE

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    ATE289049T1 (en) 2005-02-15
    EP0949476A3 (en) 1999-12-29
    ES2236978T3 (en) 2005-07-16
    DE59911572D1 (en) 2005-03-17
    DE19809067A1 (en) 1999-09-09

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