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EP2315973A2 - Device for gasifying carbonaceous fuels - Google Patents

Device for gasifying carbonaceous fuels

Info

Publication number
EP2315973A2
EP2315973A2 EP09777854A EP09777854A EP2315973A2 EP 2315973 A2 EP2315973 A2 EP 2315973A2 EP 09777854 A EP09777854 A EP 09777854A EP 09777854 A EP09777854 A EP 09777854A EP 2315973 A2 EP2315973 A2 EP 2315973A2
Authority
EP
European Patent Office
Prior art keywords
drip edge
ceramic
slag
electrically heatable
carbonaceous fuels
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
EP09777854A
Other languages
German (de)
French (fr)
Other versions
EP2315973B1 (en
Inventor
Domenico Pavone
Ralf Abraham
Muhammad Iqbal Mian
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Uhde GmbH
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 Uhde GmbH filed Critical Uhde GmbH
Priority to PL09777854T priority Critical patent/PL2315973T3/en
Publication of EP2315973A2 publication Critical patent/EP2315973A2/en
Application granted granted Critical
Publication of EP2315973B1 publication Critical patent/EP2315973B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F23J1/08—Liquid slag removal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/06—Continuous processes
    • C10J3/08—Continuous processes with ash-removal in liquid state
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/52—Ash-removing devices
    • C10J3/526—Ash-removing devices for entrained flow gasifiers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/74—Construction of shells or jackets
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2200/00—Details of gasification apparatus
    • C10J2200/09—Mechanical details of gasifiers not otherwise provided for, e.g. sealing means
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0916—Biomass
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/12—Heating the gasifier
    • C10J2300/1269—Heating the gasifier by radiating device, e.g. radiant tubes
    • C10J2300/1276—Heating the gasifier by radiating device, e.g. radiant tubes by electricity, e.g. resistor heating

Definitions

  • the invention is directed to a device for the gasification of carbonaceous fuels with a discharge for slags in a slag bath.
  • the processes in carburettors are designed to melt the mineral constituents of the materials used into liquid slags, which then flow down the generally cylindrical walls of the carburettor to leave the carburetor through a slag hole to drain into a water bath below to be granulated there.
  • the alkaline substances preferably evaporate from the slag, which causes the flow temperature of the slag increases substantially, so that in turn the burner performance is increased , which in turn leads to accelerated outgassing of the alkalis.
  • this object is achieved according to the invention in that the carburetor discharge is equipped with an electrically heatable drip edge, wherein the drip edge is formed by an electrically heatable ceramic.
  • heated spouts are from the DE
  • the drip edge of simple oxide or non-oxide ceramics or mixtures of corresponding ceramics is formed.
  • the ceramics used here may be Al 2 O 3 , Cr 2 O 3 , CaO, Fe 2 O 3 , HfO 2 , MgO, SiO 2 , SnO 2 , TiO 2 , ZrO 2 , AlN, MoSi 2 , SiC, BN, cermets, wherein the ceramics mentioned here can be used individually or in combination.
  • the invention also provides that the power supply is formed in the electrically heatable drip edge of a Stromzugot prepared for the power supply rod.
  • an electrically conductive ceramic such as MoSi 2
  • the power supply rod is enclosed by a non-electrically conductive ceramic.
  • An advantage of electrically conductive ceramics is also that the conductivity increases with increasing temperature, the ceramic is very slag and high temperature resistant and the control can be performed as a ceramic resistance heating.
  • the compound can, for example be carried out by an electrically conductive adhesive or it may already be provided for example during sintering corresponding elements for electrical connection.
  • 1 is a schematic diagram of a carburettor with inventive drip edge
  • 3 is a plan view of a drip edge with indirect ceramic heating and in
  • Fig. 4 in the same representation as Fig. 3, the drip edge with direct heating.
  • Fig. 1 generally designated 1, very schematically illustrated carburetor for the gasification of carbonaceous fuels has in a refractory housing 2, a supply for the fuel to be gasified, denoted by 3, and supplies of other media 4, such as when starting the carburetor.
  • the forming in the combustion chamber designated 5 slag flows at the lower end in the direction of gravity from the carburetor in a not shown water bath, wherein the Vergaseraustragsö réelle is denoted by 6, the drip edge carries generally the reference numeral 7, the electrical leads are denoted by 8.
  • FIG. cut closer the reactor wall 2 is lined, for example, with a ramming mass 9, which defines the Vergas Lucasstragsö réelle 6 and is provided on its inner wall with a ceramic heating element 10, wherein said heating element forms the drip edge 7.
  • the power supply 8 is formed by a power supply rod of electrically conductive ceramic, which is enclosed by a sleeve 11 made of an electrically non-conductive ceramic, which passes through the ramming mass, also electrically non-conductive.
  • a shrink tube 12 is still provided, which serves to seal the power supply rod to the container or the sleeve to prevent a short circuit between the container wall 2 and the power supply rod 8.
  • the indirect heating of the drip edge 7 forming ceramic is shown, wherein the electrical resistance heater 10a may be formed, for example of SiSiC, while the slag-resistant ceramic, for example, Al 2 O 3 • Cr 2 O 3 consists. Visible, the ceramic resistance heater is positioned directly behind the slag-resistant ceramic, so that the ceramic is then transferred directly to the slag-resistant ceramic in the drip area of the carburetor, the ceramic resistance heating is separated from aggressive slag.
  • the electrical resistance heater 10a may be formed, for example of SiSiC
  • the slag-resistant ceramic for example, Al 2 O 3 • Cr 2 O 3 consists.
  • the ceramic resistance heater is positioned directly behind the slag-resistant ceramic, so that the ceramic is then transferred directly to the slag-resistant ceramic in the drip area of the carburetor, the ceramic resistance heating is separated from aggressive slag.
  • Fig. 4 shows a directly heated ceramic ring 10, which is designed as a ceramic resistance heating, the material is chosen so that it is both resistant to slag as well as conductive.
  • the power supply rods 8 are suitably made of a material such as MoSi 2 , ie the electrical resistance is lower than the resistance of the ceramic heating conductor, wherein the electrical resistance is independent of temperature.
  • the material mentioned here can be used at temperatures of up to 1800 0 C.
  • the described embodiment of the invention is still to be modified in many ways, without departing from the spirit.
  • the invention is not limited in particular to a specific geometric shape of the resistance heating, and the drip edge forming the closing ring of the carburetor opening must not be integrally formed u. like. more.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Furnace Details (AREA)
  • Processing Of Solid Wastes (AREA)
  • Resistance Heating (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The invention relates to a device for gasifying carbonaceous fuels, comprising an outlet for slag to a slag bath. The device is characterized by a gasifier outlet opening (6) comprising a ceramic drip edge (7) which can be electrically heated. The gasifier outlet opening can thus be reliably maintained at a temperature which ensures the discharge of the slag.

Description

"Vorrichtung zur Vergasung von kohlenstoffhaltigen Brennstoffen""Apparatus for the gasification of carbonaceous fuels"
Die Erfindung richtet sich auf eine Vorrichtung zur Vergasung von kohlenstoffhaltigen Brennstoffen mit einem Austrag für Schlacken in ein Schlackebad.The invention is directed to a device for the gasification of carbonaceous fuels with a discharge for slags in a slag bath.
Bei der Vergasung kohlenstoffhaltiger Brennstoffe, z.B. Braun- oder Steinkohle, Raffinerierückständen, Biomassen u. dgl . , werden u.a. die Prozesse in Vergasern so gestaltet, dass die Mineralbestandteile der eingesetzten Materialien zu flüssigen Schlacken aufgeschmolzen werden, die dann an den in der Regel zylindrischen Wänden der Vergaser nach unten fließen, um den Vergaser durch ein Schlackeloch zu verlassen, um in ein darunter befindliches Wasserbad abzutropfen, um dort granuliert zu werden.In the gasification of carbonaceous fuels, e.g. Brown or hard coal, refinery residues, biomass and the like. like. , u.a. the processes in carburettors are designed to melt the mineral constituents of the materials used into liquid slags, which then flow down the generally cylindrical walls of the carburettor to leave the carburetor through a slag hole to drain into a water bath below to be granulated there.
Um einen kontinuierlichen Betrieb der Vergaser zu gewährleisten, muss dafür Sorge getragen werden, dass die Verga- seraustragsöffnung sich hier nicht zusetzt, so dass es bekannt ist, in diesem Bereich Stützbrenner vorzusehen, die dort für so hohe Temperaturen sorgen, dass der Austrag der Schlacke sichergestellt ist.In order to ensure a continuous operation of the carburetor, it must be ensured that the Vergasersertragsöffnung not clogged here, so it is known to provide in this area support burner, which there provide so high temperatures that the discharge of slag is ensured.
Derartige Lösungen zeigen beispielsweise die US 3 218 998, die US 4 095 777 oder die US 5 630 853, um nur einige Beispiele zu nennen. Diese Lösungen mit Stützbrennern sind sehr aufwändig, da sie sehr viele zusätzliche Elemente benötigen, wobei ein zusätzlicher Nachteil darin besteht, dass die Stützbrenner im Abtropfbereich auf die Oberfläche der fließenden Schlacke gerichtet werden müssen, um die Fließtemperatur aufrechtzuerhalten .Such solutions are shown for example in US Pat. No. 3,218,998, US Pat. No. 4,095,777 or US Pat. No. 5,630,853, to name only a few examples. These backup burner solutions are very cumbersome because they require a great many additional elements, with an added disadvantage being that the support burners in the drip area must be directed to the surface of the flowing slag to maintain the flow temperature.
Induktiv beheizbare Behälterauslässe zeigen die DE 195 40 641 C2 oder die DE 196 54 402 C2. Diese Heizung kann nicht bei dem vorliegenden Einsatzgebiet verwendet werden, sie würde zu erheblichen Problemen führen.Inductively heated container outlets show the DE 195 40 641 C2 or DE 196 54 402 C2. This heater can not be used in the present application, it would lead to significant problems.
Da der Fließpunkt einer Schlacke u.a. von der Alkali-Konzentration in der Schlacke abhängig ist, bewirkt die auf die Oberfläche gerichtete Brennerflamme, dass die alkalischen Stoffe bevorzugt aus der Schlacke verdampfen, was dazu führt, dass sich die Fließtemperatur der Schlacke wesentlich erhöht, so dass dann wiederum die Brennerleistung gesteigert wird, was wiederum zur beschleunigten Ausgasung der Alkalien führt.Since the pour point of a slag u.a. is dependent on the alkali concentration in the slag, the surface-directed burner flame, the alkaline substances preferably evaporate from the slag, which causes the flow temperature of the slag increases substantially, so that in turn the burner performance is increased , which in turn leads to accelerated outgassing of the alkalis.
Durch die Notwendigkeit der stetigen Anhebung der Brennerleistung kann es dabei zu mantelseitiger Wandüberhitzung kommen, was im schlechtesten Falle zur Abschaltung der Anlage führt .Due to the necessity of constantly increasing the burner output, it can lead to shell-side wall overheating, which leads to the shutdown of the system in the worst case.
Hier setzt die Erfindung an, deren Aufgabe darin besteht, die Vergaseraustragsöffnung sicher auf einer Temperatur zu halten, die das Abfließen der Schlacke gewährleistet.This is where the invention, whose task is to keep the Vergaseraustragsöffnung safely at a temperature that ensures the flow of slag.
Mit einer Vorrichtung der eingangs bezeichneten Art wird diese Aufgabe gemäß der Erfindung dadurch gelöst, dass die Vergaseraustragsöffnung mit einer elektrisch beheizbaren Abtropfkante ausgerüstet ist, wobei die Abtropfkante von einer elektrisch beheizbaren Keramik gebildet ist.With a device of the type described, this object is achieved according to the invention in that the carburetor discharge is equipped with an electrically heatable drip edge, wherein the drip edge is formed by an electrically heatable ceramic.
Mit einer derartigen elektrisch beheizbaren Abtropfkante lässt sich mit einfachen Mitteln erreichen, dass die notwendige Temperatur eingehalten wird, gleichzeitig muss ein nur geringer baulicher Aufwand getrieben werden.With such an electrically heatable drip edge can be achieved with simple means that the necessary temperature is maintained, at the same time only a small structural effort must be driven.
Grundsätzlich sind beheizbare Ausgüsse aus der DEBasically, heated spouts are from the DE
195 40 641 C2 oder der DE 196 54 402 C2 bekannt. Diese Lö- sungen betreffen aber andere technische Anwendungsbereiche und sind nicht ohne weiteres auf das vorliegende technische Gebiet übertragbar.195 40 641 C2 or DE 196 54 402 C2. This solution However, solutions relate to other technical fields of application and are not readily transferable to the present technical field.
Zweckmäßig wird nach der Erfindung die Abtropfkante von einfachen Oxid- oder Nicht-Oxid-Keramiken oder Mischungen aus entsprechenden Keramiken gebildet.Advantageously, according to the invention, the drip edge of simple oxide or non-oxide ceramics or mixtures of corresponding ceramics is formed.
Die Erfindung sieht dabei vor, dass die elektrisch beheizbare Abtropfkante direkt oder indirekt beheizt ist. Bei den hier zum Einsatz kommenden Keramiken kann es sich erfindungsgemäß um Al2O3, Cr2O3, CaO, Fe2O3, HfO2, MgO, SiO2, SnO2, TiO2, ZrO2, AlN, MoSi2, SiC, BN, Cermets handeln, wobei die hier genannten Keramiken einzeln oder auch in Kombination eingesetzt werden können.The invention provides that the electrically heatable drip edge is heated directly or indirectly. According to the invention, the ceramics used here may be Al 2 O 3 , Cr 2 O 3 , CaO, Fe 2 O 3 , HfO 2 , MgO, SiO 2 , SnO 2 , TiO 2 , ZrO 2 , AlN, MoSi 2 , SiC, BN, cermets, wherein the ceramics mentioned here can be used individually or in combination.
Die Erfindung sieht auch vor, dass die Stromzufuhr in die elektrisch beheizbare Abtropfkante von einem Stromzuführstab aus einer elektrisch leitenden Keramik, wie z.B. MoSi2 gebildet ist, wobei der Stromzuführungsstab von einer nicht elektrisch leitenden Keramik umschlossen ist.The invention also provides that the power supply is formed in the electrically heatable drip edge of a Stromzuführstab of an electrically conductive ceramic, such as MoSi 2 , wherein the power supply rod is enclosed by a non-electrically conductive ceramic.
Die sich aus der Erfindung ergebenden Vorteile bestehen weiterhin darin, dass es durch die Möglichkeit der genauen Temperatureinstellung nicht zur Alkali-Verdampfung kommen kann und damit sich nicht die Schlacke-Viskosität erhöht. Ein Vorteil elektrisch leitender Keramik besteht auch darin, dass die Leitfähigkeit mit zunehmender Temperatur steigt, wobei die Keramik sehr schlacke- und hochtemperaturbeständig ist und die Regelung als keramische Widerstandsheizung durchgeführt werden kann.The advantages resulting from the invention continue to be that it can not come to alkali evaporation due to the possibility of accurate temperature setting and thus does not increase the slag viscosity. An advantage of electrically conductive ceramics is also that the conductivity increases with increasing temperature, the ceramic is very slag and high temperature resistant and the control can be performed as a ceramic resistance heating.
Besteht beispielsweise die Abtropfkante aus mehreren keramischen Elementen, die sich nach allen gängigen Verfahren herstellen lassen, so kann die Verbindung beispielsweise durch einen elektrisch leitenden Klebstoff erfolgen oder aber es können bereits z.B. beim Sintern entsprechende Elemente zur elektrischen Verbindung vorgesehen werden.For example, if the drip edge of several ceramic elements that can be produced by all common methods, so the compound can, for example be carried out by an electrically conductive adhesive or it may already be provided for example during sintering corresponding elements for electrical connection.
Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aufgrund der nachfolgenden Beschreibung sowie anhand der Zeichnung. Diese zeigt inFurther features, details and advantages of the invention will become apparent from the following description and from the drawing. This shows in
Fig. 1 eine Prinzipdarstellung eines Vergasers mit erfindungsgemäßer Abtropfkante,1 is a schematic diagram of a carburettor with inventive drip edge,
Fig. 2 eine Teilaufsicht auf die Abtropfkante mit Stromzuführung,2 is a partial plan view of the drip edge with power supply,
Fig. 3 eine Aufsicht auf eine Abtropfkante mit indirekter keramischer Beheizung sowie in3 is a plan view of a drip edge with indirect ceramic heating and in
Fig. 4 in gleicher Darstellung wie Fig. 3 die Abtropfkante mit direkter Beheizung.Fig. 4 in the same representation as Fig. 3, the drip edge with direct heating.
Der in Fig. 1 allgemein mit 1 bezeichnete, sehr schematisch dargestellte Vergaser zur Vergasung von kohlenstoffhaltigen Brennstoffen weist in einem feuerfesten Gehäuse 2 eine Zufuhr für den zu vergasenden Brennstoff, mit 3 bezeichnet, auf sowie Zuführungen anderer Medien 4 , etwa beim Anfahren des Vergasers. Die sich im Brennraum bildende mit 5 bezeichnete Schlacke fließt am unteren Ende in Schwerkraftrichtung aus dem Vergaser in ein nicht näher dargestelltes Wasserbad, wobei die Vergaseraustragsöffnung mit 6 bezeichnet ist, die Abtropfkante trägt allgemein das Bezugszeichen 7, die elektrischen Zuführungen sind mit 8 bezeichnet.The in Fig. 1 generally designated 1, very schematically illustrated carburetor for the gasification of carbonaceous fuels has in a refractory housing 2, a supply for the fuel to be gasified, denoted by 3, and supplies of other media 4, such as when starting the carburetor. The forming in the combustion chamber designated 5 slag flows at the lower end in the direction of gravity from the carburetor in a not shown water bath, wherein the Vergaseraustragsöffnung is denoted by 6, the drip edge carries generally the reference numeral 7, the electrical leads are denoted by 8.
In Fig. 2 ist der Aufbau einer solchen Abtropfkante im Aus- schnitt näher bezeichnet. Dort ist die Reaktorwand 2 beispielsweise mit einer Stampfmasse 9 ausgekleidet, die die Vergaseraustragsöffnung 6 definiert und auf ihrer Innenwand mit einem keramischen Heizelement 10 versehen ist, wobei dieses Heizelement die Abtropfkante 7 bildet.2, the construction of such a drip edge is shown in FIG. cut closer. There, the reactor wall 2 is lined, for example, with a ramming mass 9, which defines the Vergaseraustragsöffnung 6 and is provided on its inner wall with a ceramic heating element 10, wherein said heating element forms the drip edge 7.
Die Stromzuführung 8 wird von einem Stromzuführungsstab aus elektrisch leitender Keramik gebildet, der von einer Hülse 11 aus einer elektrisch nicht leitenden Keramik umschlossen ist, die die Stampfmasse, ebenfalls elektrisch nicht leitend, durchsetzt. Im dargestellten Beispiel ist noch ein Schrumpfschlauch 12 vorgesehen, der zur Abdichtung des Stromzuführungsstabes zum Behälter bzw. zur Hülse dient, um einen Kurzschluss zwischen der Behälterwand 2 und dem Stromzuführungsstab 8 zu verhindern.The power supply 8 is formed by a power supply rod of electrically conductive ceramic, which is enclosed by a sleeve 11 made of an electrically non-conductive ceramic, which passes through the ramming mass, also electrically non-conductive. In the illustrated example, a shrink tube 12 is still provided, which serves to seal the power supply rod to the container or the sleeve to prevent a short circuit between the container wall 2 and the power supply rod 8.
In Fig. 3 ist die indirekte Beheizung der die Abtropfkante 7 bildenden Keramik dargestellt, wobei die elektrische Widerstandsheizung 10a z.B. aus SiSiC gebildet werden kann, während die schlackebeständige Keramik beispielsweise aus Al2O3 • Cr2O3 besteht. Erkennbar wird die keramische Widerstandsheizung direkt hinter der schlackebeständigen Keramik positioniert, so dass die Keramik dann direkt an die schlackebeständige Keramik im Abtropfbereich des Vergasers übertragen wird, wobei die keramische Widerstandsheizung von aggressiver Schlacke getrennt ist.In Fig. 3, the indirect heating of the drip edge 7 forming ceramic is shown, wherein the electrical resistance heater 10a may be formed, for example of SiSiC, while the slag-resistant ceramic, for example, Al 2 O 3 • Cr 2 O 3 consists. Visible, the ceramic resistance heater is positioned directly behind the slag-resistant ceramic, so that the ceramic is then transferred directly to the slag-resistant ceramic in the drip area of the carburetor, the ceramic resistance heating is separated from aggressive slag.
Im Gegensatz dazu zeigt Fig. 4 einen direkt beheizten Keramikring 10, der als keramische Widerstandsheizung ausgebildet ist, das Material wird dabei so gewählt, das es sowohl schlackbeständig wie auch leitfähig ist.In contrast, Fig. 4 shows a directly heated ceramic ring 10, which is designed as a ceramic resistance heating, the material is chosen so that it is both resistant to slag as well as conductive.
Die Stromversorgungsstäbe 8 sind zweckmäßig aus einem Werkstoff wie z.B. MoSi2 gefertigt, d.h. der elektrische Widerstand ist geringer als der Widerstand des keramischen Heiz- leiters, wobei der elektrische Widerstand temperaturunabhängig ist. Das hier genannte Material kann bei Temperaturen von bis zu 18000C eingesetzt werden.The power supply rods 8 are suitably made of a material such as MoSi 2 , ie the electrical resistance is lower than the resistance of the ceramic heating conductor, wherein the electrical resistance is independent of temperature. The material mentioned here can be used at temperatures of up to 1800 0 C.
Natürlich ist das beschriebene Ausführungsbeispiel der Erfindung noch in vielfacher Hinsicht abzuändern, ohne den Grundgedanken zu verlassen. So ist die Erfindung insbesondere nicht auf eine bestimmte geometrische Form der Widerstandsheizung beschränkt, auch muss der die Abtropfkante bildende Abschlussring der Vergaseröffnung nicht einstückig ausgebildet sein u. dgl . mehr. Of course, the described embodiment of the invention is still to be modified in many ways, without departing from the spirit. Thus, the invention is not limited in particular to a specific geometric shape of the resistance heating, and the drip edge forming the closing ring of the carburetor opening must not be integrally formed u. like. more.

Claims

Patentansprüche : Claims:
1. Vorrichtung zur Vergasung von kohlenstoffhaltigen Brennstoffen mit einem Austrag für Schlacken in ein Schlackebad, dadurch gekennzeichnet, dass die Vergaseraustragsöffnung (6) mit einer elektrisch beheizbaren Abtropfkante (7) ausgerüstet ist, wobei die Abtropfkante (7) von einer elektrisch beheizbaren Keramik (10) gebildet ist.1. An apparatus for gasification of carbonaceous fuels with a discharge for slags in a slag bath, characterized in that the Vergaseraustragsöffnung (6) is equipped with an electrically heatable drip edge (7), wherein the drip edge (7) of an electrically heatable ceramic (10 ) is formed.
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die elektrisch beheizbare Abtropfkante (7) direkt beheizt ist.2. Apparatus according to claim 1, characterized in that the electrically heatable drip edge (7) is heated directly.
3. Vorrichtung nach Anspruch 1 oder 2 , dadurch gekennzeichnet, dass die elektrisch beheizbare Abtropfkante (7) indirekt beheizt ist.3. Apparatus according to claim 1 or 2, characterized in that the electrically heatable drip edge (7) is indirectly heated.
4. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die elektrisch beheizbare Keramik (10,10a) von Al2O3, Cr2O3, CaO, Fe2O3, HfO2, MgO, SiO2, SnO2, TiO2, ZrO2, AlN, MoSi2, SiC, BN, Cermets, einzeln oder in Kombination gebildet ist.4. Device according to one of the preceding claims, characterized in that the electrically heatable ceramic (10,10a) of Al 2 O 3 , Cr 2 O 3 , CaO, Fe 2 O 3 , HfO 2 , MgO, SiO 2 , SnO 2 , TiO 2 , ZrO 2 , AlN, MoSi 2 , SiC, BN, cermets, singly or in combination.
5. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Stromzufuhr in die elektrisch beheizbare Abtropfkante (10) von einem Stromzuführstab (8) aus einer elektrisch leitenden Keramik, wie z.B. MoSi2, gebildet ist, wobei der Stromzuführungsstab von einer nicht elektrisch leitenden Keramik (11) umschlossen ist. 5. Device according to one of the preceding claims, characterized in that the power supply to the electrically heatable drip edge (10) of a Stromzuführstab (8) of an electrically conductive ceramic, such as MoSi 2 , is formed, wherein the power supply rod from a non-electric conductive ceramic (11) is enclosed.
EP09777854.2A 2008-08-20 2009-08-13 Device for gasifying carbonaceous fuels Not-in-force EP2315973B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09777854T PL2315973T3 (en) 2008-08-20 2009-08-13 Device for gasifying carbonaceous fuels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008038485A DE102008038485A1 (en) 2008-08-20 2008-08-20 Device for the gasification of carbonaceous fuels
PCT/EP2009/005871 WO2010020372A2 (en) 2008-08-20 2009-08-13 Device for gasifying carbonaceous fuels

Publications (2)

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EP2315973A2 true EP2315973A2 (en) 2011-05-04
EP2315973B1 EP2315973B1 (en) 2013-06-19

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US (1) US8894728B2 (en)
EP (1) EP2315973B1 (en)
KR (1) KR101451469B1 (en)
CN (1) CN102124270A (en)
AU (1) AU2009284433B2 (en)
BR (1) BRPI0918409A2 (en)
CA (1) CA2734789C (en)
CU (1) CU23959B1 (en)
DE (1) DE102008038485A1 (en)
ES (1) ES2427197T3 (en)
PL (1) PL2315973T3 (en)
RU (1) RU2497046C2 (en)
TW (1) TWI477596B (en)
UA (1) UA99544C2 (en)
WO (1) WO2010020372A2 (en)

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Publication number Priority date Publication date Assignee Title
CN105051167B9 (en) 2012-12-26 2017-09-05 Sk新技术株式会社 The pneumatic drier of carbon fuel
DE102013003413A1 (en) 2013-02-28 2014-09-11 Linde Aktiengesellschaft Method and device for separating liquid slag particles
DE102013005406A1 (en) 2013-03-26 2014-10-02 Linde Aktiengesellschaft Device for the separation and discharge of slag from a gasification plant for carbonaceous feedstocks
ES2693249T3 (en) * 2015-01-20 2018-12-10 Energies Tèrmiques Bàsiques, Sl Industrial plant for thermochemical biomass treatment

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Publication number Publication date
CA2734789A1 (en) 2010-02-25
TWI477596B (en) 2015-03-21
ES2427197T3 (en) 2013-10-29
WO2010020372A8 (en) 2011-04-07
TW201012916A (en) 2010-04-01
US8894728B2 (en) 2014-11-25
WO2010020372A3 (en) 2010-07-29
CA2734789C (en) 2016-02-16
US20110179713A1 (en) 2011-07-28
PL2315973T3 (en) 2013-11-29
AU2009284433B2 (en) 2014-06-26
KR101451469B1 (en) 2014-10-15
CU20110039A7 (en) 2012-06-21
UA99544C2 (en) 2012-08-27
EP2315973B1 (en) 2013-06-19
CU23959B1 (en) 2013-10-29
CN102124270A (en) 2011-07-13
RU2011110111A (en) 2012-09-27
RU2497046C2 (en) 2013-10-27
BRPI0918409A2 (en) 2015-11-24
WO2010020372A2 (en) 2010-02-25
AU2009284433A1 (en) 2010-02-25
KR20110073423A (en) 2011-06-29
DE102008038485A1 (en) 2010-02-25

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