[go: up one dir, main page]

WO2010037601A1 - Ash metering system for high pressures using a combination of an ash pump and an ash lock - Google Patents

Ash metering system for high pressures using a combination of an ash pump and an ash lock Download PDF

Info

Publication number
WO2010037601A1
WO2010037601A1 PCT/EP2009/061026 EP2009061026W WO2010037601A1 WO 2010037601 A1 WO2010037601 A1 WO 2010037601A1 EP 2009061026 W EP2009061026 W EP 2009061026W WO 2010037601 A1 WO2010037601 A1 WO 2010037601A1
Authority
WO
WIPO (PCT)
Prior art keywords
dust
pressure
lock
pump
conveying according
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.)
Ceased
Application number
PCT/EP2009/061026
Other languages
German (de)
French (fr)
Inventor
Manfred Schingnitz
Günter TIETZE
Volker KIRCHHÜBEL
Ann Lobin
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41786307&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2010037601(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2010037601A1 publication Critical patent/WO2010037601A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
    • 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
    • C10J3/50—Fuel charging devices
    • 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
    • C10J3/50—Fuel charging devices
    • C10J3/503—Fuel charging devices for gasifiers with stationary fluidised bed
    • 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
    • C10J3/50—Fuel charging devices
    • C10J3/506—Fuel charging 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
    • C10J3/723—Controlling or regulating the gasification process
    • 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
    • C10J3/78—High-pressure apparatus
    • 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
    • C10J2200/15—Details of feeding means
    • C10J2200/156—Sluices, e.g. mechanical sluices for preventing escape of gas through the feed inlet
    • 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
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • 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
    • C10J2300/093—Coal
    • C10J2300/0933—Coal fines for producing water gas
    • 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
    • C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
    • 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
    • C10J2300/0953—Gasifying agents
    • C10J2300/0956—Air or oxygen enriched air
    • 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
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2203/00—Feeding arrangements
    • F23K2203/20—Feeding/conveying devices
    • F23K2203/201—Feeding/conveying devices using pneumatic means

Definitions

  • Dust metering system for high pressures through a combination of dust pump and lock
  • the invention relates to a system for pressure conveying of dust gas suspensions at pressures up to 10 MPa with the features of the preamble of claim 1.
  • the invention relates to a Staubeintragsystem, which is able to cover dusts of ambient pressure to a very high pressure level, for example, 10 MPa, with inert gas to make and recoverable.
  • the fuel dust from a supply bunker under ambient pressure is supplied to locks, which are then pressurized to the required ambient pressure by supplying a condensate-free inert gas
  • a condensate-free inert gas In the lower part of the metering vessel, by supplying a likewise inert fluidizing gas, a very dense fluidized bed is created, into which one or more dust-conveying lines are immersed, by observing a pressure difference between the metering system and the receiver of the combustible dust , For example, a gasification reactor, the fuel dust flows to this as a dense dust gas suspension.
  • This delivery and dosing technology has proven itself in practice, but has the The disadvantage is that the pressure is limited to about 40 bar in order to limit the consumption of stringing gas.
  • the invention has for its object to make a Staubeintragsystem so that, despite high pressures of 40 to 100 bar, both the required amount of the stringing gas and the load on the valves is limited.
  • the object is achieved by using a two-stage lock system in which the first stage consists of a dust pump and the second stage of a pressure lock, as it reproduces claim 1.
  • This combination can be significantly reduced by a dust pump to overcome pressure difference, whereby the load on the valves is reduced.
  • the displaced by the dust entry into the dust locks gas passes through the combined drain and Beschreibstechnisch in the just filled with dust, but initially still unpressurized chambers of the dust pump. This reduces the need for stringing gas, wel Ches is to be supplied via the combined removal and Beschreibsön the dust pump is reduced.
  • FIG. 1 shows a schematic representation of a Staubeintragsystems invention.
  • the pneumatic dust delivery system according to the invention is generally suitable for the promotion of dust-gas suspension.
  • the dust conveyor system is intended especially for conveying fuel inert gas suspensions, as they are fed to a gasification reactor.
  • Fuels may be finely ground coal of varying degrees of coalification, petroleum cokes, residuals and wastes, or biomass, such as those used in dust gasification with free oxygen-containing gasifiers.
  • a gasification reactor operating under a pressure of 6 MPa (60 bar) should be supplied with the required amount of fuel dust.
  • the reactor power should be 200 MW, so that a dust amount of about 30 Mg / h is to be supplied.
  • the dosing vessel 4 of the dust entry system is operated continuously at an operating pressure of approximately 63 bar.
  • a system of two cascades is selected, each of the cascades comprising a dust pump 2 and a dust lock 3. This combination can be significantly reduced by a dust pump to overcome pressure difference.
  • the filling of the dust lock 3 is initiated.
  • the filling of the dust lock 3 takes place at a high pressure level, which is close to the technical development status of the dust pumps.
  • the displaced by the dust entry into the dust locks 3 gas passes through the combined drain and tension line 8 in the just filled with dust, but initially still unpressurized chambers of the dust pump 2.
  • the chambers of the dust pump 2 After passing the dust inlet into the lock 3 (6 o'clock position), the chambers of the dust pump 2, which are emptied of dust but still under the working pressure, are conveyed via the combined loading and unloading line 7 of the dust pump 2 (10 o'clock position). relaxed. The resulting flash gas is partially used for covering the again filled with dust chambers.
  • the dust pump 2 After the dust lock 3 is completely filled with dust, the dust pump 2 is turned off and the shut-off valves between the dust pump 2 and dust lock 3 are closed. Subsequently, the dust lock 3 is covered by inert gas supply via the clothing line 9 from the working pressure level of the dust pump 2 to the operating pressure of the metering vessel 4 (6.3 MPa). Thus, the dust lock 3 is ready to dust in the dosing 4 ready.
  • the dust content of the dust lock 3 is taken over into the metering vessel 4.
  • the gas displaced in this case from the metering vessel passes through the pressure equalization line 12 into the dust lock 3.
  • the dust storage in the bunker 1 is constantly ensured by the dust supply 5 from a grinding drying plant or from a dust silo.
  • a partial fluidized bed is produced by the fluidizing or conveying gas supply 10, from which the dust conveying lines 11 leading to the gasification reactor are fed.
  • the individual cascades consisting of the stagnation pump and dust locks work independently of each other. However, since dosing systems are usually designed so that only the dust content of a dust lock 3 is taken over into the dosing vessel 4, there is a time staggering of the individual cycles / phase shift in parallel-operating cascades.
  • the impeller From the dust bed, which is located in the storage bunker 1, dust can be fed by gravity through its own weight via a line of the dust chamber of the dust pump 2, the impeller has, for example, an electric drive, which sets the impeller in rotation.
  • the dust-filled dust chamber moves by rotation of the impeller in a clockwise direction in the direction of the combined Ent- and tensioning line 7 in 1 o'clock position, thereby flowing from their inert gas flows.
  • the dust chamber moves in the direction of the combined removal and tensioning line 8 in the 2 o'clock position, as a result of which inert gas passed from it flows.
  • the dust chamber reaches the dust outlet in 6 o'clock position.
  • By further rotation of the impeller reaches the dust chamber to the gas discharge 7 in 10 o'clock position over which the dust chamber is relaxed.
  • the invention also includes a method for pressure conveying of fuel gas suspensions at pressures up to 100 bar, wherein fuels finely ground carbon coals different degrees of coking, petroleum coke, residues and waste or biomass may be, as in the dust gasification with free oxygen-containing gasification agents for Use come, therefore, the required pressure increase takes place in two pressure levels, the pressure increase in the first pressure stage by a dust pump 2 and the pressure increase in the second pressure stage is performed by a pressure lock 3.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

According to the invention, pulverised fuel, in particular for feeding an entrained flow gasifier, is passed through a lock at high pressures of between 40 and 100 bar, the pressure increase being achieved in a first pressure stage by an ash pump (2) and in a second pressure stage by an ash lock (3) and the pressurised, pulverised fuel being transferred to a metering vessel (4). A partial fluidised bed is created in the metering vessel (4) by a supply of a fluidising and carrier gas via a line (10), said bed feeding carrier lines (11) that lead to a consumer, e.g. a reactor for the pressure gasification of pulverised fuels.

Description

Beschreibungdescription

Staubdosiersystem für hohe Drücke durch eine Kombination von Staubpumpe und SchleuseDust metering system for high pressures through a combination of dust pump and lock

Der Erfindung betrifft ein System zur Druckförderung von Staub- Gas- Suspensionen bei Drücken bis 10 MPa mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a system for pressure conveying of dust gas suspensions at pressures up to 10 MPa with the features of the preamble of claim 1.

Die Erfindung bezieht sich auf ein Staubeintragsystem, das in der Lage ist, Stäube von Umgebungsdruck auf ein sehr hohes Druckniveau, von beispielsweise 10 MPa, mit Inertgas zu bespannen und förderbar zu machen.The invention relates to a Staubeintragsystem, which is able to cover dusts of ambient pressure to a very high pressure level, for example, 10 MPa, with inert gas to make and recoverable.

In vielen technischen Prozessen ist es erforderlich, Stäube auf ein sehr hohes Druckniveau anzuheben. Genannt sei beispielsweise die Kohlenstaubvergasung mit Vergasungsdrücken bei pneumatischer Staubförderung, die bisher auf ca. 4 MPa (40 bar) beschränkt sind. Nach dem Stand der Technik benutzt man zur Überwindung dieser Drücke bei der Staubdruckvergasung ein einstufiges Schleusensystem, wie es in „NOELL- KONVERSIONSVERFAHREN ZUR VERWERTUNG UND ENTSORGUNG VON ABFÄLLEN", EF- Verlag für Energie- und Umwelttechnik GmbH, 1996, Seite 34 beschrieben ist. Dabei wird der Brennstaub aus einem unter Umgebungsdruck stehenden Vorratsbunker Schleusen zugeführt, die anschließend durch Zuführung eines kondensatfreien Inertgases auf den erforderlichen Umgebungsdruck bespannt werden. Durch Schwerkraftförderung gelangt nunmehr der unter Druck stehende Brennstaub in ein gleichen Druck aufwei- sendes Dosiergefäß, das unter den Druckschleusen angeordnet ist. Im Unterteil des Dosiergefäßes wird durch Zuführung eines gleichfalls inerten Fluidisierungsgases eine sehr dichte Wirbelschicht erzeugt, in die eine oder mehrer Staubförderleitungen eintauchen. Durch Anlegen einer Druckdifferenz zwi- sehen dem Dosiersystem und dem Empfänger des Brennstaubes, z.B. einem Vergasungsreaktor, fließt der Brennstaub diesem als dichte Staub- Gassuspension zu. Diese Förder- und Dosiertechnologie hat sich in der Praxis bewährt, besitzt aber den Nachteil, dass der Druck auf ca. 40 bar begrenzt ist, um den Verbrauch an Bespannungsgas zu begrenzen. Weiterhin bedeuten die großen Druckunterschiede in den Schleusen zwischen Umgebungsdruck bei Befüllung der Schleusen und der Bespannung auf den gewünschten Betriebsdruck eine hohe Belastung der staubführenden Armaturen, was erheblichen Verschleiß zur Folge hat. Ist ein Vergasungsprozess bei höheren Drücken von beispielsweise 40 bis 100 bar durchzuführen, so ging man zum Einsatz von Kohlenstaub- Wasser- Suspensionen, sogenannten Slurries über, wie es beispielsweise in Dürrfeld u.a., „Förderung und Dosierung von Kohle/ Wassersuspensionen", Chem.- Ing.- Technik 56 (1984)6, S. 496-497 beschrieben ist. Diese Technologie besitzt den Nachteil, dass erhebliche Wassermengen dem Vergasungsprozess zugeführt werden mit Wirkungsgrad- Verlusten bis zu 10%.In many technical processes, it is necessary to raise dusts to a very high pressure level. For example, coal dust gasification with gasification pressures in the case of pneumatic dust extraction, which has hitherto been limited to about 4 MPa (40 bar), may be mentioned. According to the prior art is used to overcome these pressures in the dust gasification, a single-stage lock system, as described in "NOELL- CONVERSION PROCESS FOR THE UTILIZATION AND DISPOSAL OF WASTE", EF- Verlag for energy and environmental technology GmbH, 1996, page 34. In this process, the fuel dust from a supply bunker under ambient pressure is supplied to locks, which are then pressurized to the required ambient pressure by supplying a condensate-free inert gas In the lower part of the metering vessel, by supplying a likewise inert fluidizing gas, a very dense fluidized bed is created, into which one or more dust-conveying lines are immersed, by observing a pressure difference between the metering system and the receiver of the combustible dust , For example, a gasification reactor, the fuel dust flows to this as a dense dust gas suspension. This delivery and dosing technology has proven itself in practice, but has the The disadvantage is that the pressure is limited to about 40 bar in order to limit the consumption of stringing gas. Furthermore, the large pressure differences in the locks between ambient pressure when filling the locks and the covering to the desired operating pressure mean high loads on the dust-carrying fittings, which results in considerable wear. If a gasification process is carried out at higher pressures of for example 40 to 100 bar, the use of pulverized coal-water suspensions, so-called slurries, was initiated, as described, for example, in Dürrfeld et al., "Delivery and Metering of Coal / Water Suspensions", Chem. Ing.- Technik 56 (1984) 6, pp. 496- 497. This technology has the disadvantage that considerable amounts of water are fed into the gasification process with losses of efficiency of up to 10%.

Der Erfindung liegt die Aufgabe zugrunde, ein Staubeintragsystem so zu gestalten, dass trotz hoher Drücke von 40 bis 100 bar sowohl die benötigte Menge des Bespannungsgases als auch die Belastung der Armaturen begrenzt wird.The invention has for its object to make a Staubeintragsystem so that, despite high pressures of 40 to 100 bar, both the required amount of the stringing gas and the load on the valves is limited.

Die Aufgabe wird durch Anwendung eines zweistufigen Schleusensystems gelöst, in dem die erste Stufe aus einer Staubpumpe und die zweite Stufe aus einer Druckschleuse besteht, wie es Anspruch 1 wiedergibt.The object is achieved by using a two-stage lock system in which the first stage consists of a dust pump and the second stage of a pressure lock, as it reproduces claim 1.

Durch diese Kombination kann der durch eine Staubpumpe zu überwindende Druckunterschied deutlich reduziert werden, wodurch die Belastung der Armaturen vermindert ist.This combination can be significantly reduced by a dust pump to overcome pressure difference, whereby the load on the valves is reduced.

Vorteilhafte Lösungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous solutions of the invention are specified in the subclaims.

In einer Weiterbildung der Erfindung gelangt das durch den Staubeintrag in die Staubschleusen verdrängte Gas über die kombinierte Ent- und Bespannungsleitung in die gerade mit Staub gefüllten, aber zunächst noch drucklosen Kammern der Staubpumpe. Dadurch wird der Bedarf an Bespannungsgas, wel- ches über die kombinierte Ent- und Bespannungsleitung der Staubpumpe zuzuführen ist, reduziert.In one embodiment of the invention, the displaced by the dust entry into the dust locks gas passes through the combined drain and Bespannungsleitung in the just filled with dust, but initially still unpressurized chambers of the dust pump. This reduces the need for stringing gas, wel Ches is to be supplied via the combined removal and Bespannungsleitung the dust pump is reduced.

Die Erfindung wird im Folgenden als Ausführungsbeispiel an- hand einer Figur in einem zum Verständnis erforderlichen Umfang erläutert. Dabei zeigt:The invention is explained below as an exemplary embodiment with reference to a figure in an extent necessary for understanding. Showing:

Fig 1 eine schematische Darstellung eines erfindungsgemäßen Staubeintragsystems.1 shows a schematic representation of a Staubeintragsystems invention.

Das erfindungsgemäße pneumatische Staubfördersystem ist ganz allgemein zur Förderung von Staub-Gas-Suspension geeignet. Vorgesehen ist das Staubfördersystem speziell zur Förderung von Brennstoff-Inertgas-Suspensionen, wie sie einem Verga- sungsreaktor zugeführt werden. Brennstoffe können zu Staub fein aufgemahlene Kohlen unterschiedlichen Inkohlungsgrades, Petrolkokse, Rest- und Abfallstoffe oder Biomassen sein, wie sie bei der Staubdruckvergasung mit freiem Sauerstoff enthaltenden Vergasungsmitteln zum Einsatz kommen.The pneumatic dust delivery system according to the invention is generally suitable for the promotion of dust-gas suspension. The dust conveyor system is intended especially for conveying fuel inert gas suspensions, as they are fed to a gasification reactor. Fuels may be finely ground coal of varying degrees of coalification, petroleum cokes, residuals and wastes, or biomass, such as those used in dust gasification with free oxygen-containing gasifiers.

Ein unter einem Druck von 6 MPa (60 bar) arbeitender Vergasungsreaktor soll mit der erforderlichen Brennstaubmenge versorgt werden. Die Reaktorleistung soll 200 MW betragen, so dass eine Staubmenge von etwa 30 Mg/h zuzuführen ist. Das Do- siergefäß 4 des Staubeintragsystems wird kontinuierlich bei einem Betriebsdruck von ca. 63 bar betrieben. Zur Überwindung der Druckdifferenz zwischen dem unter Umgebungsdruck arbeitenden Betriebsbunker 1 und dem durchgängig unter dem erforderlichen Betriebsdruck von ca. 63 bar arbeitenden Dosierge- faß 4 wird ein System von 2 Kaskaden gewählt, wobei jede der Kaskaden eine Staubpumpe 2 und eine Staubschleuse 3 umfasst. Durch diese Kombination kann der durch eine Staubpumpe zu überwindende Druckunterschied deutlich reduziert werden.A gasification reactor operating under a pressure of 6 MPa (60 bar) should be supplied with the required amount of fuel dust. The reactor power should be 200 MW, so that a dust amount of about 30 Mg / h is to be supplied. The dosing vessel 4 of the dust entry system is operated continuously at an operating pressure of approximately 63 bar. In order to overcome the pressure difference between the operating bunker 1 operating under ambient pressure and the dosing vessel 4 operating continuously under the required operating pressure of approximately 63 bar, a system of two cascades is selected, each of the cascades comprising a dust pump 2 and a dust lock 3. This combination can be significantly reduced by a dust pump to overcome pressure difference.

Die Arbeitsweise einer derartigen Kaskade wird anschließend ausgehend vom folgenden Betriebszustand beschrieben: Staubpumpe 2 abgeschaltet Staubschleuse 3 entleert und auf den festgelegten Arbeitsdruck der Staubpumpe 2 entspannt.The operation of such a cascade is then described starting from the following operating state: Dust pump 2 switched off Dust lock 3 emptied and expanded to the specified working pressure of the dust pump 2.

Durch Einschalten der Staubpumpe 2 wird das Füllen der Staubschleuse 3 eingeleitet. Das Füllen der Staubschleuse 3 er- folgt bei einem hohen Druckniveau, das nahe dem technischen Entwicklungsstand der Staubpumpen liegt. Das durch den Staubeintrag in die Staubschleusen 3 verdrängte Gas gelangt über die kombinierte Ent- und Bespannungsleitung 8 in die gerade mit Staub gefüllten, aber zunächst noch drucklosen Kammern der Staubpumpe 2. Dadurch wird der Bedarf an Bespannungsgas, welches über die kombinierte Ent- und Bespannungsleitung 7 der Staubpumpe (2 Uhr-Stellung) zuzuführen ist, reduziert. Nach dem Passieren des Staubeintrittes in die Schleuse 3 (6 Uhr-Stellung) werden die vom Staub entleerten, aber noch un- ter dem Arbeitsdruck stehenden Kammern der Staubpumpe 2 über die kombinierte Be- und Entspannungsleitung 7 der Staubpumpe 2 (10 Uhr-Stellung) entspannt. Das hierbei anfallende Entspannungsgas wird teilweise zur Bespannung der erneut mit Staub gefüllten Kammern genutzt. Nachdem die Staubschleuse 3 vollständig mit Staub befüllt ist, wird die Staubpumpe 2 abgeschaltet und die Absperrarmaturen zwischen Staubpumpe 2 und Staubschleuse 3 werden geschlossen. Anschließend wird die Staubschleuse 3 durch Inertgaszuführung über die Bespannungsleitung 9 vom Arbeitsdruck- niveau der Staubpumpe 2 auf den Betriebsdruck des Dosiergefäßes 4 (6,3 MPa) bespannt. Damit steht die Staubschleuse 3 zur Staubübergabe in das Dosiergefäß 4 bereit. Bei Staubbedarf im Dosiergefäß 4 wird der Staubinhalt der Staubschleuse 3 in das Dosiergefäß 4 übernommen. Das hierbei aus dem Dosiergefäß verdrängte Gas gelangt über die Druckausgleichsleitung 12 in die Staubschleuse 3. Nach der vollständigen Entleerung wird die Staubschleuse 3 durch Gasabführung 13 in die Atmosphäre oder über einen Filter in den nicht näher dargestellten Vorratspeicher für Inertgas des Betriebsdrucks für die Staubpum- pe auf das Arbeitsdruckniveau der Staubpupe 2 entspannt und kann durch die Zuschaltung der Staubpumpe 2 erneut mit Staub gefüllt werden. Die Staubbevorratung im Betriebsbunker 1 wird durch die Staubzuführung 5 aus einer Mahltrocknungsanlage oder aus einem Staubsilo ständig gewährleistet. Durch Einleitung von Inertgas 6 in den Auslaufkonus wird der Betriebsbunker 1 inertisiert ; gleichzeitig wird dadurch das Auslaufverhalten des Staubs verbessert.By turning on the dust pump 2, the filling of the dust lock 3 is initiated. The filling of the dust lock 3 takes place at a high pressure level, which is close to the technical development status of the dust pumps. The displaced by the dust entry into the dust locks 3 gas passes through the combined drain and tension line 8 in the just filled with dust, but initially still unpressurized chambers of the dust pump 2. Thus, the need for stringing gas, which on the combined Ent- and Bespannungsleitung 7 of the dust pump (2 o'clock position) is to be supplied, reduced. After passing the dust inlet into the lock 3 (6 o'clock position), the chambers of the dust pump 2, which are emptied of dust but still under the working pressure, are conveyed via the combined loading and unloading line 7 of the dust pump 2 (10 o'clock position). relaxed. The resulting flash gas is partially used for covering the again filled with dust chambers. After the dust lock 3 is completely filled with dust, the dust pump 2 is turned off and the shut-off valves between the dust pump 2 and dust lock 3 are closed. Subsequently, the dust lock 3 is covered by inert gas supply via the clothing line 9 from the working pressure level of the dust pump 2 to the operating pressure of the metering vessel 4 (6.3 MPa). Thus, the dust lock 3 is ready to dust in the dosing 4 ready. When dust is required in the metering vessel 4, the dust content of the dust lock 3 is taken over into the metering vessel 4. The gas displaced in this case from the metering vessel passes through the pressure equalization line 12 into the dust lock 3. After complete emptying the dust lock 3 by gas discharge 13 into the atmosphere or via a filter in the storage reservoir for inert gas of the operating pressure for the Staubpum- not shown relaxed to the working pressure level of Staubpupe 2 and can be filled by the connection of the dust pump 2 again with dust. The dust storage in the bunker 1 is constantly ensured by the dust supply 5 from a grinding drying plant or from a dust silo. By introducing inert gas 6 in the outlet cone of the operating bunker 1 is rendered inert; At the same time this improves the run-off behavior of the dust.

Im Unterteil des Dosiergefäßes 4 wird durch die Wirbel- bzw. Fördergaszuführung 10 eine partielle Wirbelschicht erzeugt, aus der die zum Vergasungsreaktor führenden Staubförderleitungen 11 gespeist werden. Die einzelnen aus Staupumpe und Staubschleusen bestehenden Kaskaden arbeiten prinzipiell unabhängig voneinander. Da jedoch Dosiersysteme in der Regel so konzipiert werden, dass jeweils nur der Staubinhalt einer Staubschleuse 3 in das Dosiergefäß 4 übernommen wird, erfolgt eine zeitliche Staffelung der einzelnen Takte/Phasenverschiebung in parallel arbeitenden Kaskaden.In the lower part of the metering vessel 4, a partial fluidized bed is produced by the fluidizing or conveying gas supply 10, from which the dust conveying lines 11 leading to the gasification reactor are fed. The individual cascades consisting of the stagnation pump and dust locks work independently of each other. However, since dosing systems are usually designed so that only the dust content of a dust lock 3 is taken over into the dosing vessel 4, there is a time staggering of the individual cycles / phase shift in parallel-operating cascades.

Aus der Staubschüttung, die sich in dem Vorratsbunker 1 be- findet, ist Staub durch Schwerkraftförderung aufgrund des Eigengewichtes über eine Leitung der Staubkammer der Staubpumpe 2 zuführbar, deren Flügelrad beispielsweise einen elektrischen Antrieb besitzt, der das Flügelrad in Rotation versetzt. Die mit Staub befüllte Staubkammer bewegt sich durch Rotation des Flügelrades im Uhrzeigersinn in Richtung der kombinierten Ent- und Bespannungsleitung 7 in 1-Uhr-Stellung, wodurch von ihr geführtes Inertgas zuströmt. Durch weitere Rotation des Flügelrades bewegt sich die Staubkammer in Richtung der kombinierten Ent- und Bespannungsleitung 8 in 2-Uhr- Stellung, wodurch von ihr geführtes Inertgas zuströmt. Durch weitere Rotation des Flügelrades gelangt die Staubkammer zum Staubaustritt in 6-Uhr-Stellung. Durch weitere Rotation des Flügelrades gelangt die Staubkammer zur Gasabführung 7 in 10- Uhr-Stellung über die die Staubkammer entspannt wird. Durch weitere Rotation wird die Staubkammer über die Zuführung inFrom the dust bed, which is located in the storage bunker 1, dust can be fed by gravity through its own weight via a line of the dust chamber of the dust pump 2, the impeller has, for example, an electric drive, which sets the impeller in rotation. The dust-filled dust chamber moves by rotation of the impeller in a clockwise direction in the direction of the combined Ent- and tensioning line 7 in 1 o'clock position, thereby flowing from their inert gas flows. As a result of further rotation of the impeller, the dust chamber moves in the direction of the combined removal and tensioning line 8 in the 2 o'clock position, as a result of which inert gas passed from it flows. By further rotation of the impeller, the dust chamber reaches the dust outlet in 6 o'clock position. By further rotation of the impeller reaches the dust chamber to the gas discharge 7 in 10 o'clock position over which the dust chamber is relaxed. By further rotation, the dust chamber via the feed in

12-Uhr-Stellung wieder mit Staub gefüllt. Die Gasabführung in 10- Uhr-Stellung ist über die kombinierten Ent- und Bespan- nungsleitung 7 mit der Gaszuführung in 1-Uhr-Stellung verbunden .12 o'clock position again filled with dust. The gas discharge in the 10 o'clock position is via the combined removal and tion line 7 connected to the gas supply in 1 o'clock position.

Die Erfindung umfasst auch ein Verfahren zur Druckförderung von Brennstoff- Gas- Suspensionen bei Drücken bis 100 bar, wobei Brennstoffe fein aufgemahlene Kohlen unterschiedlichen Inkohlungsgrades, Petrolkokse, Rest- und Abfallstoffe oder Biomassen sein können, wie sie bei der Staubdruckvergasung mit freiem Sauerstoff enthaltenden Vergasungsmitteln zum Ein- satz kommen, demzufolge die erforderliche Druckerhöhung in zwei Druckstufen erfolgt, die Druckerhöhung in der ersten Druckstufe durch eine Staubpumpe 2 und die Druckerhöhung in der zweiten Druckstufe durch eine Druckschleuse 3 vorgenommen wird. The invention also includes a method for pressure conveying of fuel gas suspensions at pressures up to 100 bar, wherein fuels finely ground carbon coals different degrees of coking, petroleum coke, residues and waste or biomass may be, as in the dust gasification with free oxygen-containing gasification agents for Use come, therefore, the required pressure increase takes place in two pressure levels, the pressure increase in the first pressure stage by a dust pump 2 and the pressure increase in the second pressure stage is performed by a pressure lock 3.

Claims

Patentansprüche claims 1. System zur Druckförderung von Staub- Gas- Suspensionen bei Drücken bis 10 MPa, dadurch gekennzeichnet, dass die Druckerhöhung in zwei Druckstufen erfolgt, wobei die Druckerhöhung in der ersten Druckstufe durch eine Staubpumpe (2) und die Druckerhöhung in der zweiten Druckstufe durch ei- ne Druckschleuse (3) erfolgt.1. system for pressure conveying of dust gas suspensions at pressures up to 10 MPa, characterized in that the pressure increase takes place in two pressure stages, wherein the pressure increase in the first pressure stage by a dust pump (2) and the pressure increase in the second pressure stage by ei - ne pressure lock (3) takes place. 2. System zur Druckförderung nach Anspruch 1 dadurch gekennzeichnet, dass die Staubpumpe (2) aus einem Vorratsbehälter (1) mit Staub befüllbar ist und der Staub von der Druckschleuse (3) in ein Dosiergefäß (4) lieferbar ist.2. System for pressure conveying according to claim 1, characterized in that the dust pump (2) from a storage container (1) can be filled with dust and the dust from the pressure lock (3) in a metering vessel (4) is available. 3. System zur Druckförderung nach Anspruch 1 bis 2 dadurch gekennzeichnet, dass bei Staubbedarf im Dosiergefäß (4) der Staubinhalt der Staubschleuse (3) in das Dosiergefäß (4) übernommen wird und das aus dem Dosiergefäß (4) verdrängte Gas über eine Druckausgleichsleitung (12) in die Staubschleuse (3) gelangt.3. system for pressure conveying according to claim 1 to 2, characterized in that when dust in the dosing (4) of the dust content of the dust lock (3) in the dosing (4) is taken over and from the metering vessel (4) displaced gas via a pressure equalization line ( 12) enters the dust lock (3). 4. System zur Druckförderung nach Anspruch 1 bis 3 dadurch gekennzeichnet, dass das Befüllen der Staubschleuse (3) über die gegen den Druck in der Staubschleuse (3) arbeitende Staubpumpe (2) erfolgt, wobei das durch den Staubeintrag in die Staubschleuse 3 ver- drängte Gas über die kombinierte Ent- und Bespannungsleitung (8) in die gerade mit Staub gefüllten, aber zunächst noch drucklosen, Kammern der Staubpumpe 2 geführt wird.4. System for pressure conveying according to claim 1 to 3, characterized in that the filling of the dust lock (3) via the against the pressure in the dust lock (3) working dust pump (2) takes place, whereby the dust introduced by the dust lock 3 urged gas over the combined Ent- and Bespannungsleitung (8) in the just filled with dust, but initially still depressurized, chambers of the dust pump 2 is performed. 5. System zur Druckförderung nach Anspruch 1 bis 4 dadurch gekennzeichnet, dass nach dem Passieren des Staubeintrittes aus der Staubpumpe (2) in die Staubschleuse (3) die vom Staub entleerten aber noch unter dem Arbeitsdruck stehenden Kammern der Staubpumpe 2 über die Be- und Entspannungsleitung 7 entspannt werden.5. system for pressure conveying according to claim 1 to 4, characterized in that after passing the dust inlet from the dust pump (2) in the dust lock (3) emptied of the dust but still be relaxed under the working pressure chambers of the dust pump 2 via the loading and expansion line 7. 6 . System zur Druckförderung nach Anspruch 1 bi s 5 d a d u r c h g e k e n n z e i c h n e t , d a s s nach der Befüllung der Staubschleuse (3) die Staubpumpe (2) abgeschaltet und die Absperrarmaturen zwischen der Staubpumpe (2) und der Staubschleuse (3) geschlossen werden, die Staubschleuse (3) durch Inertgaszuführung über die Bespannungslei- tung 9 auf das Druckniveau des Dosiergefäßes (4) bespannt wird und der Staub nach Bedarf aus der Staubschleuse (3) dem Dosiergefäß 4 zugeführt wird, wobei das aus dem Dosiergefäß 4 verdrängte Gas über die Druckausgleichsleitung 12 in die Staubschleuse 3 gelangt.6. System for pressure conveying according to claim 1 to 5 bi characterized in that after filling the dust lock (3), the dust pump (2) is switched off and the shut-off valves between the dust pump (2) and the dust lock (3) are closed, the dust lock (3) by Inertgaszuführung over the clothing line 9 to the pressure level of the metering vessel (4) is covered and the dust is supplied as required from the dust lock (3) the metering vessel 4, wherein the displaced from the metering 4 gas via the pressure equalization line 12 into the dust lock third arrives. 7. System zur Druckförderung nach Anspruch 1 bis 6 dadurch gekennzeichnet, dass die Staubschleuse (3) nach vollständiger Entleerung durch Gasabführung in die Atmosphäre auf das Arbeitsdruckniveau der Staubpumpe (2) entspannt und durch Zuschaltung der Staubpumpe (2) erneut mit Staub befüllbar ist.7. system for pressure conveying according to claim 1 to 6, characterized in that the dust lock (3) after complete emptying by gas discharge into the atmosphere on the working pressure level of the dust pump (2) relaxed and by switching the dust pump (2) can be refilled with dust. 8. System zur Druckförderung nach Anspruch 1 bis 7 dadurch gekennzeichnet, dass durch die Wirbel- und Fördergaszuführung (10) eine partielle Wirbelschicht im Unterteil des Dosiergefäßes (4) erzeugt wird, aus der die zum Vergasungsreaktor führenden Staubförderleitungen 11 gespeist und als Gas- Staub- Suspension dem Endverbraucher zugeführt werden.8. system for pressure conveying according to claim 1 to 7, characterized in that by the vortex and conveying gas supply (10) a partial fluidized bed in the lower part of the metering vessel (4) is generated from the leading to the gasification dust conveyor lines 11 fed and as gas dust - Suspension are supplied to the end user. 9. System zur Druckförderung nach Anspruch 1 bis 8 dadurch gekennzeichnet, dass mehrere jeweils aus Staubpumpe (2) und Staubschleuse (3) gebildete Kaskaden gegeben sind, die unabhängig voneinander ar- beiten. 9. system for pressure conveying according to claim 1 to 8, characterized in that a plurality of each of dust pump (2) and dust lock (3) formed cascades are given that work independently. 10. System zur Druckförderung nach Anspruch 1 bis 9 dadurch gekennzeichnet, dass das Staubeinspeisesystem mit einer oder mehreren jeweils aus Staubpumpe (2) und Staubschleuse (3) gebildeten Kaskaden sowie einem Dosiergefäß 4 aufgebaut ist.10. system for pressure conveying according to claim 1 to 9, characterized in that the dust injection system is constructed with one or more each of dust pump (2) and dust lock (3) formed cascades and a metering vessel 4. 11. System zur Druckförderung nach Anspruch 1 bis 10 dadurch gekennzeichnet, dass zur Erreichung des Betriebsdruckes im Dosiergefäß 4 eine11. System for pressure conveying according to claim 1 to 10, characterized in that to achieve the operating pressure in the metering vessel 4 a Staubpumpe (2) und eine Staubschleuse (3) untereinander angeordnet sind.Dust pump (2) and a dust lock (3) are arranged one below the other. 12. System zur Druckförderung nach den Ansprüchen 1 bis 11 da du r ch g e k e n n z e i ch n e t , d a s s zwischen der Druckschleuse (3) und der Staubpumpe (2) eine Ent- und Bespannungsleitung (8) angeordnet ist.12. system for pressure conveying according to claims 1 to 11 da e ch e n e s e s e s, s e s between the pressure lock (3) and the dust pump (2) a Ent- and Bespannungsleitung (8) is arranged. 13. System zur Druckförderung nach den Ansprüchen 1 bis 12 da du r ch g e k e n n z e i ch n e t , d a s s zwischen dem Dosiergefäß (4) und der Druckschleuse (3) eine Druckausgleichsleitung 12 angeordnet ist.13. Pressure-conveying system according to claims 1 to 12, in which a pressure-equalizing line 12 is arranged between the dosing vessel (4) and the pressure lock (3). 14. System zur Druckförderung nach den Ansprüchen 1 bis 13 da du r ch g e k e n n z e i ch n e t , d a s s das Dosiergefäß (4) eine Leitung zur Wirbel- und Fördergaszuführung aufweist.14. Pressure-conveying system according to claims 1 to 13, characterized in that the metering vessel (4) has a conduit for the fluidizing and conveying gas supply. 15. System zur Druckförderung nach einem der vorstehenden An- sprüche dadurch gekennzeichnet, dass an die Staubschleuse (3) eine Bespannungsleitung (9) angeschlossen ist. 15. System for pressure conveying according to one of the preceding claims, characterized in that a string line (9) is connected to the dust lock (3). 16. System zur Druckförderung nach einem der vorstehenden Ansprüche dadurch gekennzeichnet, dass die Staubpumpe (2) eine kombinierte Ent- und Bespannungslei- tung (7) aufweist.16. System for pressure conveying according to one of the preceding claims, characterized in that the dust pump (2) has a combined Ent- and Bespannungslei- device (7). 17. System zur Druckförderung nach einem der vorstehenden Ansprüche 2 bis 16 dadurch gekennzeichnet, dass zur Überwindung der Druckdifferenz zwischen dem Betriebsbunker (1) und dem durchgängig unter dem erforderlichen Betriebsdruck von 4 bis 10 MPa arbeitenden Dosiergefäß (4) eine Anzahl von Eintragssträngen angeordnet sind. 17. System for pressure conveying according to one of the preceding claims 2 to 16, characterized in that to overcome the pressure difference between the operating bunker (1) and the consistently under the required operating pressure of 4 to 10 MPa working metering vessel (4) a number of entry strands are arranged ,
PCT/EP2009/061026 2008-09-30 2009-08-27 Ash metering system for high pressures using a combination of an ash pump and an ash lock Ceased WO2010037601A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008049542.5 2008-09-30
DE102008049542.5A DE102008049542C5 (en) 2008-09-30 2008-09-30 Dust metering system for high pressures through a combination of dust pump and lock

Publications (1)

Publication Number Publication Date
WO2010037601A1 true WO2010037601A1 (en) 2010-04-08

Family

ID=41786307

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/061026 Ceased WO2010037601A1 (en) 2008-09-30 2009-08-27 Ash metering system for high pressures using a combination of an ash pump and an ash lock

Country Status (2)

Country Link
DE (1) DE102008049542C5 (en)
WO (1) WO2010037601A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016201182A1 (en) 2016-01-27 2017-07-27 Siemens Aktiengesellschaft Diaphragm pump with dust suction from below
EP3587924A1 (en) * 2018-06-26 2020-01-01 Claudius Peters Projects GmbH Pneumatic conveying device and heating device
US10781807B2 (en) 2016-08-25 2020-09-22 Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau Double membrane for a dust pump
US11215174B2 (en) 2016-08-25 2022-01-04 Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau Diaphragm pump having a porous, arched aluminum filter
US11590440B2 (en) 2016-08-25 2023-02-28 Dipl. Ing. Ernst Schmitz GmbH & Co. KG Maschinen and Apparatebau Production of a porous aluminum filter for a diaphragm pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011083210B4 (en) 2011-09-22 2014-03-13 Siemens Aktiengesellschaft Apparatus and method for pneumatically conveying dusts with a reduced amount of fluidizing gas

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703736A1 (en) * 1977-01-29 1978-08-03 Freier Grunder Eisen Metall Batch type powder conveyor - with inlet seal device and means of weighing batches despatched
US4570552A (en) * 1983-07-19 1986-02-18 Paul Wurth S.A. Process and apparatus for delivering carbon material to a furnace
EP0235562A2 (en) * 1986-02-01 1987-09-09 Dr. Küttner GmbH & Co. KG Process and device for the measured supply of fine solid particles to an industrial furnace
US5657704A (en) * 1996-01-23 1997-08-19 The Babcock & Wilcox Company Continuous high pressure solids pump system
DE102005047583A1 (en) * 2005-10-04 2007-04-12 Future Energy Gmbh Method and device for the controlled supply of combustible dust in an entrained flow gasifier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE615779C (en) * 1932-05-20 1935-07-12 Fuller Co Dust pump with conveyor screw and air supply at the screw outlet and adjustable distance between the air inlet and the end wing of the conveyor screw
AT383751B (en) * 1984-06-25 1987-08-25 Voest Alpine Ag PRESSURE LOCK WITH A MULTIPLE OF TURNABLE BEARINGS SEALED IN A HOUSING
US5265983A (en) * 1992-06-02 1993-11-30 The Babcock & Wilcox Company Cascading pressure continuous blow bottle
DE19855647C1 (en) * 1998-12-02 2000-07-20 Waeschle Gmbh Cell wheel sluice for conveyance or controlled feed of bulk material comprises housing with inflow and outflow shafts and cell wheel rotatably located on shaft in housing bore
DE102008007033A1 (en) * 2008-01-31 2009-08-06 Siemens Aktiengesellschaft Dosing system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703736A1 (en) * 1977-01-29 1978-08-03 Freier Grunder Eisen Metall Batch type powder conveyor - with inlet seal device and means of weighing batches despatched
US4570552A (en) * 1983-07-19 1986-02-18 Paul Wurth S.A. Process and apparatus for delivering carbon material to a furnace
EP0235562A2 (en) * 1986-02-01 1987-09-09 Dr. Küttner GmbH & Co. KG Process and device for the measured supply of fine solid particles to an industrial furnace
US5657704A (en) * 1996-01-23 1997-08-19 The Babcock & Wilcox Company Continuous high pressure solids pump system
DE102005047583A1 (en) * 2005-10-04 2007-04-12 Future Energy Gmbh Method and device for the controlled supply of combustible dust in an entrained flow gasifier

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016201182A1 (en) 2016-01-27 2017-07-27 Siemens Aktiengesellschaft Diaphragm pump with dust suction from below
WO2017129327A1 (en) 2016-01-27 2017-08-03 Siemens Aktiengesellschaft Diaphragm pump comprising dust suction from below
US10914299B2 (en) 2016-01-27 2021-02-09 Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau Diaphragm pump comprising dust suction from below
US10781807B2 (en) 2016-08-25 2020-09-22 Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau Double membrane for a dust pump
US11215174B2 (en) 2016-08-25 2022-01-04 Dipl. Ing. Ernst Schmitz Gmbh & Co. Kg Maschinen Und Apparatebau Diaphragm pump having a porous, arched aluminum filter
US11590440B2 (en) 2016-08-25 2023-02-28 Dipl. Ing. Ernst Schmitz GmbH & Co. KG Maschinen and Apparatebau Production of a porous aluminum filter for a diaphragm pump
EP3587924A1 (en) * 2018-06-26 2020-01-01 Claudius Peters Projects GmbH Pneumatic conveying device and heating device

Also Published As

Publication number Publication date
DE102008049542A1 (en) 2010-04-15
DE102008049542C5 (en) 2016-10-20
DE102008049542B4 (en) 2011-12-01

Similar Documents

Publication Publication Date Title
DE102008049542C5 (en) Dust metering system for high pressures through a combination of dust pump and lock
EP2249953A2 (en) Re-delievery system in a coal gasification reactor
DE102005047583C5 (en) Method and device for the controlled supply of fuel dust into an entrained flow gasifier
EP2302018A1 (en) Method for continuous dry moving of a material for loading a pressurised reactor which is to be partially oxidised
DE102011007066A1 (en) Membrane dust pump system
WO2009103697A2 (en) Dust intake system
DE2350953A1 (en) METHOD OF FEING CARBURETOR INTO A CARBURETOR
DE102008052673A1 (en) Device for supplying e.g. petroleum coke, into coal gasification reactor, has lock container connected with receiver tank using connection devices, and receiver tank connected with vitrification reactor by fuel lines
WO2009095290A2 (en) System for dust metering
DE69514960T2 (en) Slag treatment system and method
DE102007034524A1 (en) Simultaneous gasification of coal of widely varying levels of coalification in the flowstream gasification
DE102012217890B4 (en) Combination of pressure charging and metering for continuous delivery of fuel dust into an entrainment gasification reactor over long distances
EP3420290A1 (en) Evaporation dryer and method for operating same
DE102014202236A1 (en) Auxiliary gas element for conveying dust streams
DE102008035294B4 (en) Multi-stage dust dosing system for high pressures by means of locks
WO2012175464A1 (en) Homogenized feeding of dusts by means of a fixed throttle point in the dust conveying line
WO2013045266A2 (en) Pneumatic fuel feed from a metered dispensing vessel to a gasification reactor with high differential pressure
DE102012104866B4 (en) Method for operating a bulk material lock device
DE102008012733A1 (en) Fine cleavable fuel feeding system for cooled reactor, has finely cleavable fuel transmitted from set of locking containers to collection container by pneumatic dense phase conveyor with specific range of density and differential pressure
DE102009049181B4 (en) Process for the combination of fluidized bed drying and gasification under increased pressure
DE102014205823A1 (en) Device for pneumatically conveying fuel dust into an air flow gasifier
DE102015121619B4 (en) Fluidization tray with an agitator in a bulk pressure vessel and method of fluidizing bulk material in a pressure vessel
DE102011083210B4 (en) Apparatus and method for pneumatically conveying dusts with a reduced amount of fluidizing gas
DE102008033094A1 (en) Gasification device with continuous solids discharge
DE102013107592B4 (en) Process for the gasification of solids containing carbon with gaseous, oxygen-containing gasification agents in a fluidized bed gas process in a high-temperature Winkler gasifier

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09782240

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09782240

Country of ref document: EP

Kind code of ref document: A1