EP2242707A1 - Method and device for receiving and handing over fine-grain to coarse-grain solids from a container to a higher pressure system - Google Patents

Method and device for receiving and handing over fine-grain to coarse-grain solids from a container to a higher pressure system

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Publication number
EP2242707A1
EP2242707A1 EP09707814A EP09707814A EP2242707A1 EP 2242707 A1 EP2242707 A1 EP 2242707A1 EP 09707814 A EP09707814 A EP 09707814A EP 09707814 A EP09707814 A EP 09707814A EP 2242707 A1 EP2242707 A1 EP 2242707A1
Authority
EP
European Patent Office
Prior art keywords
container
central tube
gas
solids
solid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09707814A
Other languages
German (de)
French (fr)
Other versions
EP2242707B1 (en
Inventor
Stefan Hamel
Johannes Kowoll
Eberhard Kuske
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 PL09707814T priority Critical patent/PL2242707T3/en
Publication of EP2242707A1 publication Critical patent/EP2242707A1/en
Application granted granted Critical
Publication of EP2242707B1 publication Critical patent/EP2242707B1/en
Not-in-force legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
    • B65D88/70—Large containers characterised by means facilitating filling or emptying preventing bridge formation using fluid jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/26—Hoppers, i.e. containers having funnel-shaped discharge sections
    • B65D88/28—Construction or shape of discharge section

Definitions

  • the invention is directed to an apparatus and method for receiving and transferring fine to coarse-grained solids from a container into a higher pressure system via a shut-off device, the container having means for supplying the solids and for feeding the pressure in the container Gases and equipped with facilities for pressure equalization during filling and emptying, the container bottom is designed as a feed funnel to the obturator.
  • Such conversion processes may be, for example, the pressure combustion, pressure gasification or fluidized bed or flight flow process.
  • WO 2004/085578 Al shows a lock container inside the conical container part gas supply elements provides over which the container is brought to target pressure. Similar elements are shown in DE 41 08 048 in the conical part of the pressure pot in order to achieve the fluidization of the solids bed in order to improve a pneumatic delivery from the pressure pot. In WO 98/11378 it is proposed to supply gas by introducing porous elements in the outlet cone of the silo in order to allow a more even flow of material. The same is described in US 4,941,779.
  • Devices within containers for facilitating the discharge of powdery material are also known, for example, from DE 11 30 368 A, DE 195 21 766 A, GB 940 506 A or US Pat. No. 2 245 664 A, where the devices there are exclusively for the supply of Serve loosening air.
  • the invention has for its object to provide a device for discharging solids that can be put under pressure with targeted covering of the container while avoiding compression of the bulk material, with secure guarantee of solids transport even with difficult bulk materials and high flexibility when using different Bulk goods during operation and the highest possible mass flow to the receiving container.
  • this object is achieved according to the invention in that within the container at a distance in the direction of gravity above the obturator at least one vertically oriented, top and bottom open central tubular body (central tube) and the container bottom and / or the central tube acting gas supply means are provided for generating a solid flow in the central tube.
  • the central tube is double-walled and is acted upon by at least one gas supply line, wherein the tube wall is provided with gas outlet openings.
  • An essential embodiment of the invention is that the central tube is equipped with distributed over its length inlet openings for the solid, whereby it is possible that the solid can flow into the tube interior.
  • the fact that the central tube is equipped with outwardly directed and / or inwardly directed gas outlet openings, as the invention also provides, can lead to a targeted flow behavior of the solid inside the container depending on the wishes of the operator.
  • a further expedient embodiment of the invention consists in that annular chambers are formed in the double-walled central tube by partitions, each annular chamber being provided with at least one gas supply line, wherein the solids introduction openings are provided in the interior of the central tube between the annular chambers and the diameter of the annular chambers may be the same or different.
  • the invention also provides a multiple distribution of gas outlet openings, such as in the container walls, the central tube walls, in the lock associated with connecting piece u. Like. More, which may also be provided in particular that the outlet openings for the formation of predefined flows, eg TangentialStrömungen, are equipped with corresponding gas flow conducting elements.
  • a protective / deflecting hood is provided above the tube for deflecting the upward solids flow in the container covering and for preventing the filling of the tube with solid during the filling process.
  • the above-defined object of the invention is achieved in that within the container at a distance in the gravitational direction above the Absperrrorganges at least one vertically aligned central tubular body (central tube) is provided, the filling of the first under With ambient pressure standing receptacle is carried out with solid in the annular space formed between the container inner wall and Monyakau touchwand and during the filling process in the region of the obturator, a gas is fed via a gas supply / - discharge control pressure equalization in the container is made and subsequently the container by gas supply is brought to the higher system pressure, which prevails beyond the obturator, wherein the gas is fed in such a way that initially in the central tube forms an upward flow of solids.
  • FIG. 1 is a schematic diagram of a lock container according to the invention
  • Fig. 3 is a slightly enlarged detail drawing of a section of the central tube and in
  • Fig. 4 is an enlarged schematic detail section of the gas supply in the connection piece to the obturator.
  • the apparatus generally designated 1, is shown substantially schematically in FIG.
  • the device 1 consists essentially of a lock container 1 ', in the interior of which a pipe - in the following central tube 2 - is provided.
  • This container 1 ' is provided with a bed of solids 3, wherein in Fig. 1 by arrows, a flow pattern is shown, as it is in the stringing, i. in the pressurization, the container by means of compressed air results.
  • Gas supply devices 7 are provided and in the transition region to the outlet 9, which leads to a shut-off device 18, gas feeds 16, 9 additional gas feeds 17 are provided on the outlet, which gas streams are generated with the latter, for example when filling the container eccentric to the central tube 2 a solid - Can generate flow, which is directed in the central tube 2 upwards, as indicated by arrows in Fig. 1.
  • a deflecting or protective hood can be provided above the central tube, which is denoted by 20 in FIG. 1 and indicated schematically therein.
  • the gas supply in the pipe socket 9 is shown in Fig. 4 in more detail.
  • the central tube 2 is simplified as a double wall tube with existing segments consisting of segments, the individual tube segments designated 8 are each arranged at a distance from each other, such that inflow 5 for the solid or a correspondingly conveyed gas during Emptying the container yields.
  • This emptying situation is reproduced in FIG. 2, the solid flow also being indicated here with solid small arrows, while the gas flow is shown by means of dotted arrows.
  • the tube segments 8 with their inner tube shell 11 have at their outer tube shell 10 gas outlet openings, which are designated by 12.
  • gas supply devices 7 are provided only in the funnel region of the container 1 ', but also in the cylindrical edge region. These gas supply devices are designated 6 in FIG. 2.
  • a feed lines 4 the annular spaces of the central tube 2 between the outer tube shell 10 and inner tube shell 11 can be acted upon with gas, it being possible to provide that a common gas supply is provided (Fig. 2) or per tube segment, a respective individual gas supply, as is indicated in Fig. 3.
  • the mode of action of the device according to the invention or the procedure according to the invention is the following:
  • the container 1 ' is first filled with solids in such a way that the central tube located above the shut-off element 18 in relation to the funnel-shaped bottom of the container is not filled, with a certain amount of solids accumulating above the shut-off element. This situation is shown in FIG.
  • gas is simultaneously controlled individually via the segments 8 of the central tube 2 and via the gas supply devices 6 and 7 located on the container wall and / or on the container bottom, and the gas feeds 16 and 17 are fed in such a way that the liquid shown in FIG formed solid in the interior of the central tube, wherein it is also ensured that via the gas supply lines 17 and the area immediately before the obturator 18 is loosened or blown.
  • the advantageous mode of operation is such that the main gas supply via this gas supply 17 takes place in the outlet. This results in a forced circulation of solids within the container, thus avoiding is that occurs in a steady charge solidification of the material.
  • the gas supply 17 can be designed such that a swirling flow is generated in the swirl pipe stubs 9 denoted by 20 with swirl generating elements designated 17 ', which ensures a corresponding swirling of the solids.
  • This gas supply 17/17 ' for example, as indicated in Fig. 4, be designed as a circumferential annular gap or be provided over the circumference with further outlet openings.
  • a particular advantage of this design is that here recirculated dust-laden gas can be used to generate flow.
  • gas can be supplied in such a way that the wall friction in and around the emptying tube and around the container walls is reduced so that the locally localized solids loosen up.
  • the supplied gas accelerates the transfer of the solid in a Nachfölendes plant part.
  • the volume released by the solid exchange volume is refilled in the container.
  • excess gas can be supplied, which is important in order to avoid a negative pressure gradient at the outlet opening 9.
  • This negative pressure gradient would set, for example, if the solid expires faster than the volume released is filled with gas again, so that gas could flow upwards in the outlet and against arrow "g", ie against the solids moving down, resulting in a significant disability would lead to the solids outlet. Due to the excess gas, the discharge rate is increased according to the invention. Since the individual segments can be provided with separate gas connections, it is also possible to apply the individual segments 8 individually and thus to control the solids flow in a targeted manner. The segmental addition of gas therefore allows the best possible gas distribution in the packed bed, whereby an improved fluidization of even difficult products during the outlet process is achievable.
  • the described embodiment of the invention is still to be modified in many ways, without departing from the spirit.
  • the invention is not limited to that only a central tubular body is provided, the cross-sectional shape of this body may also deviate from the tube shape, and more than one such body may be provided parallel to each other u. like. more.

Abstract

The invention relates to a device (1) and a method for receiving and handing over fine-grain to coarse-grain solids from a container to a higher pressure system via a cut-off device. The device and method according to the invention allow improvement of the hand-over of the solids while reliably guaranteeing the solids transport even for difficult bulk materials, high operational flexibility when used for various bulk materials and high flow rates towards the receiving container while avoiding compression of the bulk material. The device is characterized by at least one vertical central tubular body (2) (central tube) which is arranged inside the container (1') at a distance in the direction of gravitation (g) upstream of the cut-off device (18) and which is open at the top and at the bottom, and by gas supply devices (4, 7) impinging the container bottom (19) and/or the central tube (2) to produce a solids flow in the central tube.

Description

"Verfahren und Vorrichtung zur Aufnahme und Übergabe von fein- bis grobkörnigen Feststoffen aus einem Behälter in ein System höheren Druckes""Method and device for receiving and transferring fine to coarse-grained solids from a container to a system of higher pressure"
Die Erfindung richtet sich auf eine Vorrichtung und ein Verfahren zur Aufnahme und Übergabe von fein- bis grobkörnigen Feststoffen aus einem Behälter in ein System höheren Druckes über ein Absperrorgan, wobei der Behälter mit Einrichtungen zur Zufuhr des Feststoffes und zur Zufuhr von den Druck im Behälter erhöhenden Gasen sowie mit Einrichtungen zum Druckausgleich beim Befüllen und Entleeren ausgerüstet ist, wobei der Behälterboden als Zufuhrtrichter zum Absperrorgan ausgebildet ist.The invention is directed to an apparatus and method for receiving and transferring fine to coarse-grained solids from a container into a higher pressure system via a shut-off device, the container having means for supplying the solids and for feeding the pressure in the container Gases and equipped with facilities for pressure equalization during filling and emptying, the container bottom is designed as a feed funnel to the obturator.
Es gibt eine Reihe von Einsatzfällen, in denen es notwendig ist, einem System z.B. aus der Umgebung Brennstoffe zuzuführen, die im weiteren Verfahren mit einem Druck behandelt werden, der erheblich über den Umbegungsdruck liegt.There are a number of applications in which it is necessary to provide a system e.g. To supply from the environment fuels that are treated in the further process with a pressure that is considerably above the Umbegungsdruck.
Eine solche Situation ergibt sich beispielsweise bei der thermischen Umwandlung fester Brennstoffe, wie beispielsweise unterschiedliche Kohlen, aber auch Torf, Hydrierrückstände, Reststoffe, Abfälle, Biomassen, Flugstaub od. dgl . wobei damit auch alle Gemische aus derartigen Stoffen gemeint sind. Derartige Umwandlungsprozesse können beispielsweise die Druckverbrennung, Druckvergasung oder Wirbelschicht- bzw. Flugstromverfahren sein.Such a situation arises for example in the thermal conversion of solid fuels, such as different coals, but also peat, hydrogenation residues, residues, waste, biomass, fly ash od. Like. which means all mixtures of such substances are meant. Such conversion processes may be, for example, the pressure combustion, pressure gasification or fluidized bed or flight flow process.
Bei derartigen Verfahren, z.B. bei der Druck-Kohlenstaub- Vergasung sind Drücke bis zu 45 bar nichts Ungewöhnliches, d.h. die umzuwandelnden Stoffe müssten vor der Vergasung auf diesen Druck gebracht werden, wobei höhere Drücke auch zu höheren Anlagekapazitäten führen.In such methods, e.g. In pressure coal dust gasification, pressures up to 45 bar are not uncommon, i. the substances to be converted would have to be brought to this pressure before gasification, with higher pressures also leading to higher plant capacities.
Höhere Anlagekapazitäten bedeuten höhere Mengen an zu transportierenden Brennstoffen, wobei gleichzeitig umgekehrt auch höhere Mengen an Asche bzw. Schlacke zu bewältigen sind. Zu beachten ist dabei, dass geometrische Obergrenzen für derartige Schleusen bzw. Schleusenbehälter durch das zu erwartende Verhalten des Schüttgutes oder durch Austragsorgane, Verbindungsleitungen, Armaturen oder durch die zur Verfügung stehenden Örtlichkeiten gegeben sind. Dabei lässt sich eine Steigerung beispielsweise dadurch erreichen, dass die Anzahl der Behälter erhöht wird und/oder der Durchsatz beim Schleusvorgang.Higher investment capacity means higher amounts of transporting fuels, while conversely, higher amounts of ash or slag can be handled. It should be noted that geometric upper limits for such locks or lock containers are given by the expected behavior of the bulk material or by discharge organs, connecting lines, fittings or by the available locations. In this case, an increase can be achieved, for example, by increasing the number of containers and / or the throughput during the transfer operation.
Es gibt bereits eine Reihe von Lösungen, die sich mit dieser Problematik beschäftigen, so zeigt die WO 2004/085578 Al einen Schleusenbehälter, der innen im konischen Behälterteil Gaszufuhrelemente vorsieht, über die der Behälter auf Zieldruck gebracht wird. Ähnliche Elemente zeigt die DE 41 08 048 im konischen Teil des Drucktopfes, um die Fluidisierung der Feststoffschüttung zu erreichen, um eine pneumatische Förderung aus dem Drucktopf zu verbessern. In der WO 98/11378 wird vorgeschlagen, durch Einbringen von porösen Elementen im Auslasskonus des Silos Gas zuzuführen, um einen gleichmäßigeren Materialfluss zu ermöglichen. Ähnliches wird in der US 4 941 779 beschrieben.There are already a number of solutions that deal with this problem, as WO 2004/085578 Al shows a lock container inside the conical container part gas supply elements provides over which the container is brought to target pressure. Similar elements are shown in DE 41 08 048 in the conical part of the pressure pot in order to achieve the fluidization of the solids bed in order to improve a pneumatic delivery from the pressure pot. In WO 98/11378 it is proposed to supply gas by introducing porous elements in the outlet cone of the silo in order to allow a more even flow of material. The same is described in US 4,941,779.
Vorrichtungen innerhalb von Behältern zur Vereinfachung des Austragens pulvrigen Materiales sind beispielsweise auch aus der DE 11 30 368 A, der DE 195 21 766 A, der GB 940 506 A oder der US 2 245 664 A bekannt, wobei die dortigen Hilfsmittel ausschließlich der Zufuhr von Auflockerungsluft dienen.Devices within containers for facilitating the discharge of powdery material are also known, for example, from DE 11 30 368 A, DE 195 21 766 A, GB 940 506 A or US Pat. No. 2 245 664 A, where the devices there are exclusively for the supply of Serve loosening air.
Es ist auch bekannt, Austragungen von Schüttgütern aus Behältern über Förderschnecken oder ähnliche Elemente zu bewerkstelligen. Die Erfindung hat sich zur Aufgabe gestellt, eine Vorrichtung zum Ausschleusen von Feststoffen zu schaffen, die unter Druck gesetzt werden kann mit gezielter Bespannung des Behälters bei Vermeidung von Kompression des Schüttgutes, bei sicherer Gewährleistung des Feststofftransportes auch bei schwierigen Schüttgütern sowie hoher Flexibilität bei Einsatz unterschiedlicher Schüttgüter während des Betriebes und möglichst hohem Massenstrom zum Empfangsbehälter.It is also known to carry out discharges of bulk materials from containers via screw conveyors or similar elements. The invention has for its object to provide a device for discharging solids that can be put under pressure with targeted covering of the container while avoiding compression of the bulk material, with secure guarantee of solids transport even with difficult bulk materials and high flexibility when using different Bulk goods during operation and the highest possible mass flow to the receiving container.
Mit einer Vorrichtung der eingangs bezeichneten Art wird diese Aufgabe gemäß der Erfindung dadurch gelöst, dass innerhalb des Behälters auf Abstand in Schwerkraftrichtung oberhalb des Absperrorganes wenigstens ein vertikal ausgerichteter, oben und unten offener zentraler rohrförmiger Körper (Zentralrohr) sowie den Behälterboden und/oder das Zentralrohr beaufschlagende Gaszufuhreinrichtungen zur Erzeugung einer FeststoffStrömung im Zentralrohr vorgesehen sind.With a device of the type described, this object is achieved according to the invention in that within the container at a distance in the direction of gravity above the obturator at least one vertically oriented, top and bottom open central tubular body (central tube) and the container bottom and / or the central tube acting gas supply means are provided for generating a solid flow in the central tube.
Es hat sich gezeigt, dass das Vorsehen eines Zentralrohres in Kombination mit GasZufuhreinrichtungen zu sehr guten Verhältnissen bei der Übergabe des Feststoffes vom Schleusenbehälter in einen nachgeschalteten Druckbehälter gegeben sind. Dies führt u.a. zur Erzielung sehr kurzer Taktzeiten.It has been shown that the provision of a central tube in combination with gas supply means are given very good conditions in the transfer of the solid from the lock container in a downstream pressure vessel. This leads u.a. to achieve very short cycle times.
Weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen, wobei vorgesehen sein kann, dass das Zentralrohr doppelwandig ausgebildet ist und von wenigstens einer Gaszufuhrleitung beaufschlagt ist, wobei die Rohrwand mit Gasaustrittsöffnungen versehen ist.Further embodiments of the invention will become apparent from the dependent claims, wherein it can be provided that the central tube is double-walled and is acted upon by at least one gas supply line, wherein the tube wall is provided with gas outlet openings.
Die Möglichkeit, Gas sowohl über die Wände des Zentralrohres wie auch über die Behälterwände, insbesondere den Behälterboden, zuzuführen, führt zu einer Reihe von Vorteilen sowohl in der Phase des Befüllens des Behälters mit zu übergebendem Material, wie auch in der Austragsphase, wenn das Material unter höherem Druck übergeben wird.The ability to supply gas both over the walls of the central tube and over the container walls, particularly the container bottom, leads to a number of advantages both in the phase of filling the container with as well as in the discharge phase, when the material is transferred under higher pressure.
Eine wesentliche Ausgestaltung der Erfindung besteht darin, dass das Zentralrohr mit über seine Länge verteilten Einlauföffnungen für den Feststoff ausgerüstet ist, womit es möglich ist, dass der Feststoff in das Rohrinnere strömen kann. Dabei kann es, dadurch dass das Zentralrohr mit nach außen gerichteten und/oder nach innen gerichteten Gasaustrittsöffnungen ausgerüstet ist, wie dies die Erfindung ebenfalls vorsieht, zu einem gezielten Strömungsverhalten des Feststoffes im Inneren des Behälters je nach Wünschen des Betreibers kommen.An essential embodiment of the invention is that the central tube is equipped with distributed over its length inlet openings for the solid, whereby it is possible that the solid can flow into the tube interior. In this case, the fact that the central tube is equipped with outwardly directed and / or inwardly directed gas outlet openings, as the invention also provides, can lead to a targeted flow behavior of the solid inside the container depending on the wishes of the operator.
Eine weitere zweckmäßige Ausgestaltung der Erfindung besteht darin, dass im doppelwandigen Zentralrohr durch Trennwände Ringkammern ausgebildet sind, wobei jede Ringkammer mit wenigstens einer Gaszufuhrleitung versehen ist, wobei zwischen den Ringkammern die Feststoffeintragsöff- nungen in das Innere des Zentralrohres vorgesehen sind und wobei der Durchmesser der Ringkammern gleich oder unterschiedlich ausgebildet sein kann. Dadurch, das einzelne Ringkammern mit individuellen GasZuführungen vorgesehen sind, ist es beispielsweise möglich, über die Stirnseiten einer höher liegenden Ringkammer den Zufluss an Feststoff von außen nach innen durch die entsprechende Feststoffein- trittsöffnung zu verbessern.A further expedient embodiment of the invention consists in that annular chambers are formed in the double-walled central tube by partitions, each annular chamber being provided with at least one gas supply line, wherein the solids introduction openings are provided in the interior of the central tube between the annular chambers and the diameter of the annular chambers may be the same or different. By virtue of the fact that individual annular chambers are provided with individual gas feeds, it is possible, for example, to improve the inflow of solids from outside to inside through the corresponding solids inlet opening via the end faces of a higher annular chamber.
So ist es auch möglich, kaskadenartig in Schwerkraftrichtung von oben nach unten im Durchmesser kleiner werdende Ringkammern vorzusehen oder einen Wechsel aus Ringkammern mit kleinem und großem Durchmesser oder die Ringkammern selbst trichterförmig auszubilden mit beispielsweise dem kleineren Durchmesser in Schwerkraftrichtung unten liegend. Die Erfindung sieht auch eine Vielfachverteilung von Gasaustrittsöffnungen vor, etwa in den Behälterwänden, den Zentralrohrwänden, im der Schleuse zugeordneten Anschlussstutzen u. dgl. mehr, wobei insbesondere auch vorgesehen sein kann, dass die Austrittsöffnungen zur Bildung von vordefinierten Strömungen, z.B. TangentialStrömungen, mit entsprechenden gasstromleitenden Elementen ausgerüstet sind.Thus, it is also possible to provide cascade-like in the direction of gravity from top to bottom in diameter smaller annular chambers or a change of annular chambers with small and large diameter or even form the annular chambers funnel-shaped with, for example, the smaller diameter in the direction of gravity lying down. The invention also provides a multiple distribution of gas outlet openings, such as in the container walls, the central tube walls, in the lock associated with connecting piece u. Like. More, which may also be provided in particular that the outlet openings for the formation of predefined flows, eg TangentialStrömungen, are equipped with corresponding gas flow conducting elements.
Auch kann vorgesehen sein, dass oberhalb des Rohres zur Umlenkung des aufwärts gerichteten FeststoffStromes bei der Behälterbespannung und zur Verhinderung der Füllung des Rohres mit Feststoff beim Befüllvorgang eine Schutz-/Umlenkhaube vorgesehen ist.It can also be provided that a protective / deflecting hood is provided above the tube for deflecting the upward solids flow in the container covering and for preventing the filling of the tube with solid during the filling process.
Mit einem Verfahren der eingangs bezeichneten Art wird die weiter oben definierte Aufgabe der Erfindung dadurch gelöst, dass innerhalb des Behälters auf Abstand in Schwer- kraftrichtung oberhalb des Absperrorganges wenigstens ein vertikal ausgerichteter zentraler rohrförmiger Körper (Zentralrohr) vorgesehen ist, wobei die Befüllung des zunächst unter Umgebungsdruck stehenden Aufnahmebehälters mit Feststoff in den zwischen Behälterinnenwand und Zentralrohraußenwand gebildeten Ringraum vorgenommen wird und während des Füllvorganges im Bereich des Absperrorganes ein Gas eingespeist wird, wobei über eine Gaszufuhr-/-abfuhrrege- lung ein Druckausgleich im Behälter vorgenommen wird und nachfolgend der Behälter durch Gaszufuhr auf den höheren Systemdruck gebracht wird, der jenseits des Absperrorganes herrscht, wobei das Gas derart eingespeist wird, dass sich zunächst im Zentralrohr eine nach aufwärts gerichtete FeststoffStrömung ausbildet.With a method of the type described above, the above-defined object of the invention is achieved in that within the container at a distance in the gravitational direction above the Absperrrorganges at least one vertically aligned central tubular body (central tube) is provided, the filling of the first under With ambient pressure standing receptacle is carried out with solid in the annular space formed between the container inner wall and Zentralrohraußenwand and during the filling process in the region of the obturator, a gas is fed via a gas supply / - discharge control pressure equalization in the container is made and subsequently the container by gas supply is brought to the higher system pressure, which prevails beyond the obturator, wherein the gas is fed in such a way that initially in the central tube forms an upward flow of solids.
Weitere Ausgestaltungen der Erfindung ergeben sich aus den das Verfahren betreffenden weiteren Unteransprüchen. Die Erfindung ist nachstehend anhand der Zeichnung beispielsweise näher erläutert. Diese zeigt inFurther embodiments of the invention will become apparent from the further subclaims concerning the method. The invention is explained in more detail below with reference to the drawing, for example. This shows in
Fig. 1 eine Prinzipskizze eines Schleusenbehälters nach der Erfindung,1 is a schematic diagram of a lock container according to the invention,
Fig. 2 in ähnlicher Darstellungsweise einen Prinzipschnitt durch einen erfindungsgemäßen Schleusenbehälter mit Zentralrohr,2 is a similar representation of a principle section through a lock container according to the invention with central tube,
Fig. 3 eine leicht vergrößerte Detailzeichnung eines Ausschnittes des Zentralrohres sowie inFig. 3 is a slightly enlarged detail drawing of a section of the central tube and in
Fig. 4 einen vergrößerten schematischen Detailschnitt der Gaszufuhr im Anschlussstutzen zum Absperrorgan.Fig. 4 is an enlarged schematic detail section of the gas supply in the connection piece to the obturator.
Die allgemein mit 1 bezeichnete Vorrichtung ist in Fig. 1 im Wesentlichen schematisch dargestellt. Dabei besteht die Vorrichtung 1 im Wesentlichen aus einem Schleusenbehälter 1', in dessen Inneren ein Rohr - im Folgenden Zentralrohr 2 - vorgesehen ist. Dieser Behälter 1' ist mit einer Feststoffschüttung 3 versehen, wobei in Fig. 1 durch Pfeile ein Strömungsbild dargestellt ist, wie es sich bei der Bespannung, d.h. bei der Unterdrucksetzung, des Behälters mittels Druckluft, ergibt.The apparatus, generally designated 1, is shown substantially schematically in FIG. In this case, the device 1 consists essentially of a lock container 1 ', in the interior of which a pipe - in the following central tube 2 - is provided. This container 1 'is provided with a bed of solids 3, wherein in Fig. 1 by arrows, a flow pattern is shown, as it is in the stringing, i. in the pressurization, the container by means of compressed air results.
In den Fig. 1 und 2 sind mit durchgezogenen Pfeilen die Feststoffströme angedeutet, während die punktierten Pfeile die Gasströmung darstellen. Auf der rechten Seite der Abbildung ist noch ein Pfeil nach unten weisend wiedergegeben, der die Schwerkraftsrichtung "g" andeutet.In Figs. 1 and 2, the solids flows are indicated by solid arrows, while the dotted arrows represent the gas flow. On the right side of the figure, an arrow pointing downwards indicates the direction of gravity "g".
Im Beispiel der Fig. 1 sind in dem mit 19 bezeichneten Be- hälterboden Gaszufuhrvorrichtungen 7 vorgesehen sowie im Übergangsbereich zum Auslassstutzen 9, der zu einem Absperrorgan 18 führt, GasZuführungen 16, wobei am Auslassstutzen 9 zusätzliche GasZuführungen 17 vorgesehen sind, wobei mit letzteren Gasströme erzeugbar sind, die z.B. bei Befüllen des Behälters exzentrisch zum Zentralrohr 2 eine Feststoff- Strömung erzeugen können, die im Zentralrohr 2 nach oben gerichtet ist, wie dies durch Pfeile in Fig. 1 angedeutet ist. Um ein Eindringen von Feststoff beim Befüllvorgang von oben in das Zentralrohr zu vermeiden, kann oberhalb des Zentralrohres eine Umlenk- bzw. Schutzhaube vorgesehen sein, die in Fig. 1 mit 20 bezeichnet und dort schematisch angedeutet ist. Die Gaszuführung im Rohrstutzen 9 ist in Fig. 4 näher dargestellt.1, in the example of FIG. Gas supply devices 7 are provided and in the transition region to the outlet 9, which leads to a shut-off device 18, gas feeds 16, 9 additional gas feeds 17 are provided on the outlet, which gas streams are generated with the latter, for example when filling the container eccentric to the central tube 2 a solid - Can generate flow, which is directed in the central tube 2 upwards, as indicated by arrows in Fig. 1. In order to prevent the penetration of solids during the filling process from above into the central tube, a deflecting or protective hood can be provided above the central tube, which is denoted by 20 in FIG. 1 and indicated schematically therein. The gas supply in the pipe socket 9 is shown in Fig. 4 in more detail.
Mit 14 und 15 sind Ausgleichgasleitungen angedeutet, über die z.B. die im Behälter befindliche Luft beim Befüllen entweichen kann, so dass während dieses Vorganges der Druck im Behälter konstant bleibt.14 and 15 indicate equalizing gas lines through which e.g. The air in the container can escape during filling, so that during this process, the pressure in the container remains constant.
Im Darstellungsbeispiel der Fig. 2 ist das Zentralrohr 2 vereinfacht als Doppelwandrohr mit aus Segmenten bestehendes Rohr dargestellt, wobei die einzelnen mit 8 bezeichneten Rohrsegmente jeweils auf Abstand zueinander angeordnet sind, derart, dass sich Einströmöffnungen 5 für den Feststoff bzw. ein entsprechend geleitetes Fördergas beim Entleeren des Behälters ergibt. Diese Entleerungssituation ist in Fig. 2 wiedergegeben, wobei auch hier der Feststofffluss mit durchgezogenen kleinen Pfeilen angedeutet ist, während die Gasströmung mittels punktierter Pfeile wiedergegeben ist.In the illustrated embodiment of FIG. 2, the central tube 2 is simplified as a double wall tube with existing segments consisting of segments, the individual tube segments designated 8 are each arranged at a distance from each other, such that inflow 5 for the solid or a correspondingly conveyed gas during Emptying the container yields. This emptying situation is reproduced in FIG. 2, the solid flow also being indicated here with solid small arrows, while the gas flow is shown by means of dotted arrows.
Die Rohrsegmente 8 mit ihrem inneren Rohrmantel 11 weisen an ihrem äußeren Rohrmantel 10 Gasaustrittsöffnungen auf, die mit 12 bezeichnet sind. Im Beispiel der Fig. 2 sind GasZufuhrvorrichtungen 7 nur im Trichterbereich des Behälters 1' vorgesehen, sondern auch im zylindrischen Randbereich. Diese Gaszufuhrvorrichtungen sind in Fig. 2 mit 6 bezeichnet. Über Zufuhrleitungen 4 können die Ringräume des Zentralrohres 2 zwischen äußerem Rohrmantel 10 und inneren Rohrmantel 11 mit Gas beaufschlagt werden, wobei vorgesehen sein kann, dass eine gemeinschaftliche Gaszufuhr vorgesehen ist (Fig. 2) oder aber auch pro Rohrsegment eine jeweils individuelle Gaszufuhr, wie dies in Fig. 3 angedeutet ist.The tube segments 8 with their inner tube shell 11 have at their outer tube shell 10 gas outlet openings, which are designated by 12. In the example of FIG. 2 gas supply devices 7 are provided only in the funnel region of the container 1 ', but also in the cylindrical edge region. These gas supply devices are designated 6 in FIG. 2. Via feed lines 4, the annular spaces of the central tube 2 between the outer tube shell 10 and inner tube shell 11 can be acted upon with gas, it being possible to provide that a common gas supply is provided (Fig. 2) or per tube segment, a respective individual gas supply, as is indicated in Fig. 3.
Die Wirkungsweise der erfindungsgemäßen Vorrichtung bzw. der erfindungsgemäßen Verfahrensweise ist die folgende:The mode of action of the device according to the invention or the procedure according to the invention is the following:
Über die Feststoffzufuhr 13 wird zunächst der Behälter 1' mit Feststoff derart befüllt, dass das oberhalb des Ab- sperrorganes 18 in Relation zum trichterförmigen Boden des Behälters befindliche Zentralrohr nicht befüllt wird, wobei sich ein gewisser Teil an Feststoffen oberhalb des Absper- rorganes anhäuft. Diese Situation ist in Fig. 1 dargestellt.By means of the solids feed 13, the container 1 'is first filled with solids in such a way that the central tube located above the shut-off element 18 in relation to the funnel-shaped bottom of the container is not filled, with a certain amount of solids accumulating above the shut-off element. This situation is shown in FIG.
Wird nun der Behälter bespannt, wird Gas zeitgleich individuell gesteuert über die Segmente 8 des Zentralrohres 2 und über die an der Behälterwand und/oder am Behälterboden befindlichen Gaszufuhrvorrichtungen 6 und 7 sowie die Gaszuführungen 16 und 17 derart zugeführt, dass sich die in Fig. 1 dargestellte Feststoffaufwärtsströmung im Inneren des Zentralrohres ausbildet, wobei auch dafür Sorge getragen ist, dass über die Gaszufuhrleitungen 17 auch der Bereich unmittelbar vor dem Absperrorgan 18 aufgelockert bzw. ver- blasen wird. Dabei ist die vorteilhafte Betriebsweise derart, dass die Hauptgaszufuhr über diese Gaszufuhr 17 im Auslauf erfolgt. Damit ergibt sich eine erzwungene FeststoffZirkulation innerhalb des Behälters, womit vermieden wird, dass eine in ruhiger Schüttung auftretende Verfestigung des Materials erfolgt.If the container is then covered, gas is simultaneously controlled individually via the segments 8 of the central tube 2 and via the gas supply devices 6 and 7 located on the container wall and / or on the container bottom, and the gas feeds 16 and 17 are fed in such a way that the liquid shown in FIG formed solid in the interior of the central tube, wherein it is also ensured that via the gas supply lines 17 and the area immediately before the obturator 18 is loosened or blown. In this case, the advantageous mode of operation is such that the main gas supply via this gas supply 17 takes place in the outlet. This results in a forced circulation of solids within the container, thus avoiding is that occurs in a steady charge solidification of the material.
In Fig. 4 ist angedeutet, dass die Gaszufuhr 17 so gestaltet sein kann, dass über dort mit 20 bezeichnete Drallerzeugungselemente im mit 17' bezeichneten Gasaustritt in den Anchlussrohrstutzen 9 eine Drallströmung erzeugt wird, die für eine entsprechende Verwirbelung des Feststoffes sorgt. Diese Gaszufuhr 17/17' kann beispielsweise, wie in Fig. 4 angedeutet, als umlaufender Ringspalt gestaltet sein oder über den Umfang mit weiteren Austrittsöffungen versehen sein. Ein besonderer Vorteil dieser Gestaltung besteht darin, dass hier rezirkuliertes staubbeladenes Gas zur Strömungserzeugung eingesetzt werden kann.4, it is indicated that the gas supply 17 can be designed such that a swirling flow is generated in the swirl pipe stubs 9 denoted by 20 with swirl generating elements designated 17 ', which ensures a corresponding swirling of the solids. This gas supply 17/17 ', for example, as indicated in Fig. 4, be designed as a circumferential annular gap or be provided over the circumference with further outlet openings. A particular advantage of this design is that here recirculated dust-laden gas can be used to generate flow.
Wird nun der Behälter entleert, kann Gas derart zugeführt werden, dass die Wandreibung im und um das Entleerungsrohr herum und an den Behälterwänden verringert wird, so dass sich der lokal dort befindliche Feststoff auflockert. Das zugeführte Gas beschleunigt dabei die Übergabe des Feststoffes in ein nachfölendes Anlageteil. Durch die Gaszufuhr wird das durch den Feststoffaustausch freiwerdende Volumen im Behälter wieder aufgefüllt. Dabei kann überschüssiges Gas zugeführt werden, was von Bedeutung ist, um einen negativen Druckgradienten an der Auslassöffnung 9 zu vermeiden.Now, when the container is emptied, gas can be supplied in such a way that the wall friction in and around the emptying tube and around the container walls is reduced so that the locally localized solids loosen up. The supplied gas accelerates the transfer of the solid in a Nachfölendes plant part. By the gas supply, the volume released by the solid exchange volume is refilled in the container. In this case, excess gas can be supplied, which is important in order to avoid a negative pressure gradient at the outlet opening 9.
Dieser negative Druckgradient würde sich beispielsweise einstellen, wenn der Feststoff schneller ausläuft als das freiwerdende Volumen wieder mit Gas aufgefüllt wird, so dass in der Auslassöffnung Gas nach oben strömen könnte und gegen Pfeil "g", d.h. gegen die Feststoffabwärtsbewegung, was zu einer deutlichen Behinderung des Feststoffauslaufes führen würde. Durch den Gasüberschuss wird erfindungsgemäß die Austragsgeschwindigkeit erhöht. Da die einzelnen Segmente mit separaten Gasanschlüssen versehbar sind, besteht auch die Möglichkeit, die einzelnen Segmente 8 individuell zu beaufschlagen und damit den Feststoffström gezielt zu steuern. Die segmentweise Zugabe von Gas erlaubt daher eine bestmögliche Gasverteilung in der Feststoffschüttung, wodurch eine verbesserte Fluidisierung auch schwieriger Produkte während des AuslassVorganges erreichbar ist.This negative pressure gradient would set, for example, if the solid expires faster than the volume released is filled with gas again, so that gas could flow upwards in the outlet and against arrow "g", ie against the solids moving down, resulting in a significant disability would lead to the solids outlet. Due to the excess gas, the discharge rate is increased according to the invention. Since the individual segments can be provided with separate gas connections, it is also possible to apply the individual segments 8 individually and thus to control the solids flow in a targeted manner. The segmental addition of gas therefore allows the best possible gas distribution in the packed bed, whereby an improved fluidization of even difficult products during the outlet process is achievable.
Natürlich ist das beschriebene Ausführungsbeispiel der Erfindung noch in vielfacher Hinsicht abzuändern, ohne den Grundgedanken zu verlassen. So ist die Erfindung nicht darauf beschränkt, dass lediglich ein zentraler rohrförmiger Körper vorgesehen ist, die Querschnittsform dieses Körpers kann auch von der Rohrform abweichen, auch kann mehr als ein derartiger Körper parallel nebeneinander vorgesehen 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 to that only a central tubular body is provided, the cross-sectional shape of this body may also deviate from the tube shape, and more than one such body may be provided parallel to each other u. like. more.
Bezuαszeichenliste :Accident list:
1 Schleusenbehälter1 lock container
2 Zentralrohr2 central tube
3 Feststoffschüttung3 solids bed
4 Gaszufuhrleitungen4 gas supply lines
5 Seitliche Feststoffeinlauföffnungen5 lateral solids inlet openings
6 Gaszufuhrvorrichtung6 gas supply device
7 Gaszufuhrvorrichtung7 gas supply device
8 Segmente/Ringkammern8 segments / ring chambers
9 Rohrstutzen9 pipe socket
10 Äußerer Rohrmantel10 Outer tube jacket
11 Innerer Rohrmantel11 Inner pipe jacket
12 Gasaustritt12 gas outlet
13 Feststoffzufuhr13 solids supply
14 Ausgleichsleitung14 compensation line
15 Ausgleichsleitung15 compensation line
16 Gaszufuhr16 gas supply
17 Gaszufuhr17 gas supply
18 Absperrorgan18 shut-off device
19 Behälterboden19 container bottom
20 Drallerzeugungselement 20 swirl-generating element

Claims

Patentansprüche : Claims:
1. Vorrichtung (1) zur Aufnahme und Übergabe von fein- bis grobkörnigen Feststoffen aus einem Behälter in ein System höheren Druckes über ein Absperrorgan, wobei der Behälter mit Einrichtungen zur Zufuhr des Feststoffes und zur Zufuhr von den Druck im Behälter erhöhenden Gasen sowie mit Einrichtungen zum Druckausgleich beim Befüllen und Entleeren ausgerüstet ist, wobei der Behälterboden als Zufuhrtrichter zum Absperrorgan ausgebildet ist, dadurch gekennzeichnet, dass innerhalb des Behälters (1') auf Abstand in Schwer- kraftrichtung (g) oberhalb des Absperrorganes (18) wenigstens ein vertikal ausgerichteter, oben und unten offener zentraler rohrförmiger Körper (2) (Zentralrohr) sowie den Behälterboden (19) und/oder das Zentralrohr (2) beaufschlagende Gaszufuhreinrichtungen (4,7) zur Erzeugung einer FeststoffStrömung im Zentralrohr vorgesehen sind.1. Device (1) for receiving and transferring fine to coarse-grained solids from a container in a system of higher pressure via a shut-off, wherein the container with means for supplying the solid and for supplying the pressure in the container increasing gases and facilities is equipped to equalize the pressure during filling and emptying, wherein the container bottom is formed as a feed funnel to obturator, characterized in that within the container (1 ') at a distance in the gravitational force direction (g) above the obturator (18) at least one vertically aligned, above and below open central tubular body (2) (central tube) and the container bottom (19) and / or the central tube (2) acting gas supply means (4,7) are provided for generating a flow of solids in the central tube.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Zentralrohr (2) doppelwandig ausgebildet ist und von wenigstens einer Gaszufuhrleitung (4) beaufschlagt ist, wobei die Rohrwand (8) mit Gasaustrittsöffnungen (12) versehen ist.2. Apparatus according to claim 1, characterized in that the central tube (2) is double-walled and is acted upon by at least one gas supply line (4), wherein the tube wall (8) is provided with gas outlet openings (12).
3. Vorrichtung nach Anspruch 2 , dadurch gekennzeichnet, dass das Zentralrohr (2) mit nach außen gerichteten und/ oder nach innen gerichteten Gasaustrittsöffnungen ausgerüstet ist.3. Apparatus according to claim 2, characterized in that the central tube (2) is equipped with outwardly directed and / or inwardly directed gas outlet openings.
4. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Zentralrohr (2) mit über seine Länge verteilten EinlaufÖffnungen (5) für den Feststoff ausgerüstet ist.4. Device according to one of the preceding claims, characterized the central pipe (2) is equipped with inlet openings (5) distributed over its length for the solid.
5. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass neben dem trichterförmigen Behälterboden (19) weitere Bereiche des Behälters und/oder Auslaufröhrstutzen (9) mit Gaszufuhreinrichtungen (6,16,17) versehen sind.5. Device according to one of the preceding claims, characterized in that in addition to the funnel-shaped container bottom (19) further regions of the container and / or outlet pipe socket (9) with gas supply means (6,16,17) are provided.
6. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass im doppelwandigen Zentralrohr (2) durch Trennwände Segmente bzw. Ringkammern (8) ausgebildet sind, wobei jede Ringkammer mit wenigstens einer Gaszufuhrleitung (4) versehen ist, wobei zwischen den Ringkammern (8) die Feststoff- eintragsöffnungen in das Innere des Zentralrohres vorgesehen sind und wobei der Durchmesser der Ringkammern (8) gleich oder unterschiedlich ausgebildet sein kann.6. Device according to one of the preceding claims, characterized in that in the double-walled central tube (2) by partitions segments or annular chambers (8) are formed, each annular chamber is provided with at least one gas supply line (4), wherein between the annular chambers (8 ) the solid-introduction openings are provided in the interior of the central tube and wherein the diameter of the annular chambers (8) may be the same or different.
7. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Wände jeder Ringkammer (8) mit Gasaustrittsöffnungen (12) im Mantel- und/oder stirnseitigen Bereich ausgerüstet sind.7. Device according to one of the preceding claims, characterized in that the walls of each annular chamber (8) are equipped with gas outlet openings (12) in the mantle and / or end region.
8. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens ein Teil der Gasaustrittsöffnungen in den Behälterwänden und/oder in den Zentralrohrwänden und/oder im Auslassrohrstutzen (9) zur Bildung vordefinierter Strömungen, z.B. Tangentialströmungen, gasstromleitende Elemente (20) aufweisen.Device according to any one of the preceding claims, characterized in that at least part of the gas outlet openings in the container walls and / or in the central tube walls and / or in the outlet tube (9) form predefined flows, e.g. Tangential currents, gas flow conducting elements (20).
9. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Feststoffzufuhr exzentrisch derart zum Zentralrohr positioniert ist, dass ein Einfallen von Feststoff während des Füllvorganges in das Zentralrohr vermieden wird.9. Device according to one of the preceding claims, characterized in that that the solids supply is eccentrically positioned in such a way to the central tube, that a collapse of solids during the filling process is avoided in the central tube.
10. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass oberhalb des Zentralrohres (2) zur Umlenkung des aufwärts gerichteten Feststromes bei der Behälterbespanung und zur Verhinderung der Füllung des Rohres mit Feststoff beim Befüllvorgang eine Schutz- /Umlenkhaube (20) vorgesehen ist.10. Device according to one of the preceding claims, characterized in that above the central tube (2) for deflecting the upwardly directed fixed flow in the Behälterbespanung and to prevent the filling of the tube with solid during the filling process, a protective / deflection hood (20) is provided.
11. Verfahren zur Aufnahme und Übergabe von fein- bis grobkörnigen Feststoffen aus einem Behälter in ein System höheren Druckes, wobei der Behälter mit Einrichtungen zur Zufuhr des Feststoffes und zur Zufuhr von den Druck im Behälter erhöhenden Gasen sowie mit Einrichtungen zum Druckausgleich beim Befüllen und Entleeren ausgerüstet ist, dadurch gekennzeichnet, dass innerhalb des Behälters auf Abstand in Schwerkraft- richtung oberhalb eines Absperrorganes wenigstens ein vertikal ausgerichteter zentraler rohrförmiger Körper (Zentralrohr) vorgesehen ist, wobei die Befüllung des zunächst unter Umgebungsdruck stehenden Aufnahmebehälters mit Feststoff in den zwischen Behälterinnenwand und Zentralrohraußenwand gebildeten Ringraum vorgenommen wird und während des Füllvorganges im Bereich des Absperrorganes ggf. ein Gas eingespeist wird, wobei über eine Gaszufuhr- /-abfuhr- regelung ein Druckausgleich vorgenommen wird und nachfolgend der Behälter durch Gaszufuhr auf den höheren Systemdruck gebracht wird, der jenseits des Absperrorganes herrscht, wobei das Gas derart eingespeist wird, dass sich im Zentralrohr eine nach aufwärts gerichtete FeststoffStrömung ausbildet. 11. A method for receiving and transferring fine to coarse-grained solids from a container in a system of higher pressure, the container having means for supplying the solid and for supplying the pressure in the container increasing gases and with means for pressure equalization during filling and emptying is equipped, characterized in that within the container at a distance in the direction of gravity above a shut-off at least one vertically aligned central tubular body (central tube) is provided, wherein the filling of the initially under ambient pressure receptacle with solid in the formed between the container inner wall and Zentralrohraußenwand Annulus is made and, if necessary, a gas is fed during the filling process in the region of the obturator, via a gas supply / -abfuhr- regulation pressure equalization is carried out and subsequently the container by gas supply to the hö Heren system pressure is brought, which prevails beyond the obturator, wherein the gas is fed in such a way that forms an upward flow of solids in the central tube.
12. Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass bei Übergabe des Feststoffes in das System höheren Druckes durch Gaszufuhr über GasZuführungsöffnungen in den Behälterwänden und/oder im doppelwandigen Zentralrohr und/ oder im Boden eine Auflockerung des Feststoffes und/oder eine Förderung des Feststoffes in Richtung auf die Übergabeschleuse eingestellt wird.12. The method according to claim 11, characterized in that upon transfer of the solid in the system of higher pressure by gas supply via gas supply openings in the container walls and / or in the double-walled central tube and / or in the soil a loosening of the solid and / or a promotion of the solid in Direction is set to the transfer lock.
13. Verfahren nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass als Förder-Druckausgleich-Lockerungs-Gas Stickstoff, Kohlendioxid, rezirkuliertes Rauchgas, Luft, Synthesegas oder Mischungen eingesetzt werden, wobei die Gase auch staubhaltig sein können.13. The method according to claim 11 or 12, characterized in that are used as conveyor pressure equalization loosening gas nitrogen, carbon dioxide, recirculated flue gas, air, synthesis gas or mixtures, wherein the gases may also be dusty.
14. Verfahren nach Anspruch 11 oder einem der folgenden, dadurch gekennzeichnet, dass durch Strömungsleiteinrichtungen im Bereich der Gasaustrittsöffnungen eine die Übergabe des Feststoffes erleichternde FeststoffStrömung im Behälter eingestellt wird.14. The method according to claim 11 or one of the following, characterized in that a transfer of the solid facilitating solid flow is adjusted in the container by Strömungsleiteinrichtungen in the region of the gas outlet openings.
15. Verfahren nach Anspruch 11 oder einem der folgenden, dadurch gekennzeichnet, dass die zugeführte Gasmenge derart geregelt ist, dass der Druckverlauf während des Aufdrückvorganges einer definierten Zeitabhängigkeit folgt, die vorzugsweise innerhalb der Grenzfälle, nämlich zugeführter Massenstrom gleich konstant und zugeführter Betriebsvolumenstrom gleich konstant (bezogen auf die aktuellen Betriebsparameter im Schleusenbehälter) liegt. 15. The method according to claim 11 or one of the following, characterized in that the supplied amount of gas is controlled so that the pressure curve during the Aufdrückvorganges a defined time dependence follows, preferably within the limiting cases, namely supplied mass flow equal constant and supplied operating volume flow equal constant ( based on the current operating parameters in the lock container).
EP09707814A 2008-02-09 2009-01-23 Method and device for receiving and handing over fine-grain to coarse-grain solids from a container to a higher pressure system Not-in-force EP2242707B1 (en)

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CA2714206A1 (en) 2009-08-13
KR20100126290A (en) 2010-12-01
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UA101646C2 (en) 2013-04-25
EP2242707B1 (en) 2011-07-06
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BRPI0908147A2 (en) 2015-08-11
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PL2242707T3 (en) 2011-12-30
DK2242707T3 (en) 2011-09-05
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DE102008008419A1 (en) 2009-09-10
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CN101939235B (en) 2012-07-18
CA2714206C (en) 2015-01-20

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