EP2297519B1 - Procédé et dispositif pour l'acheminement de matériaux transportables dans des réacteurs - Google Patents

Procédé et dispositif pour l'acheminement de matériaux transportables dans des réacteurs Download PDF

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Publication number
EP2297519B1
EP2297519B1 EP09757318.2A EP09757318A EP2297519B1 EP 2297519 B1 EP2297519 B1 EP 2297519B1 EP 09757318 A EP09757318 A EP 09757318A EP 2297519 B1 EP2297519 B1 EP 2297519B1
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EP
European Patent Office
Prior art keywords
lance
pressure
oven
conveyed
space
Prior art date
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Application number
EP09757318.2A
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German (de)
English (en)
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EP2297519A2 (fr
Inventor
Kurt Himmelfreundpointner
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Individual
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Individual
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Priority claimed from DE200810026836 external-priority patent/DE102008026836B4/de
Priority claimed from DE102008026835A external-priority patent/DE102008026835A1/de
Application filed by Individual filed Critical Individual
Publication of EP2297519A2 publication Critical patent/EP2297519A2/fr
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Publication of EP2297519B1 publication Critical patent/EP2297519B1/fr
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/08—Screw feeders; Screw dischargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/10—Charging directly from hoppers or shoots
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/12—Waste feed arrangements using conveyors
    • F23G2205/121—Screw conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/18—Waste feed arrangements using airlock systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/20—Waste feed arrangements using airblast or pneumatic feeding
    • 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
    • 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
    • F23K2203/202—Feeding/conveying devices using screws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/03001—Airlock sections in solid fuel supply lines

Definitions

  • the invention relates to a method and an apparatus for feeding eligible materials to reaction furnaces.
  • Machines within the meaning of this invention also include mixtures of materials.
  • "Eligible” in the sense of this invention means that the material is free-flowing and / or free-flowing and / or pourable and / or pasty.
  • the teaching according to the invention can be used advantageously in particular for supplying mixtures of comminuted, dry or liquid-mixed waste materials in incinerators.
  • Advantageous applications are the supply of fuel in furnaces for cement production or in the pressure zone of shaft furnaces for the production of pig iron that is under considerable overpressure relative to the atmosphere.
  • the materials to be delivered may include solid parts and liquids. Size distribution and type of solids, as well as type and proportion of liquids contained can vary within wide ranges.
  • the solids contained may be or contain hard particles (eg metal parts, mineral constituents, siliceous constituents) and softer parts such as natural or artificial fibers, textile parts, animal and vegetable wastes, plastics and foams.
  • the liquids can be different in many areas. (Water, oils, greases, paints, adhesives, other chemicals, tar, .).
  • the supply of bulk material which is obtained as a light fraction in the shredding of waste, is substantially dry and contains a considerable proportion of fibers or fibrous parts and hardly any metal is considerably simplified by the invention. Based on the weight of such bulk material normally has a respectable calorific value.
  • the AT 502 048 B1 describes a method and apparatus for feeding bulk material having solids and liquids to a processing plant. After the bulk material has been conveyed to the system only under ambient pressure with non-operating conveyors, it is pressurized by a pump and thereby conveyed through a narrow lance into the system. The method is only applicable if the material is actually pumpable, which is unfortunately not true for many bulk materials, especially those that contain little liquid.
  • the DE 199 09 132 A1 describes a supply of bulk materials by means of a pneumatic conveying path from a storage container to a cupola.
  • Storage tank and conveyor string are under higher gas pressure than the cupola. Air flowing out of the conveyor line conveys bulk material into the oven at a relatively high speed. Due to these conditions, burn-back from the furnace into the conveyor system is practically impossible.
  • the problem with the design is that the functionality depends strongly on the properties of the bulk material and that with the bulk material a lot of air is introduced into the cupola, so that the proper control of the combustion is more difficult.
  • the storage container is not directly at the implementation site through the furnace wall, but typically ten to a hundred meters away. From a storage container several implementation sites are supplied by the furnace wall. This results in the requirement of long, not continuous straight strands for the pneumatic conveying, so that the Feeding process with minimal changes in the material properties of the material to be conveyed or pressure fluctuations in the cupola is extremely prone to failure.
  • WO 99/1825 A1 and the WO 200148251 A1 deal with the so-called Corex process for crude steel production.
  • the free-flowing granular raw material is passed over a drop-down path formed by a pressure-tight pipeline into the reaction space below the raw material container.
  • either the metered discharge of the raw material from the raw material container or the metered supply of the raw material from the vertical fall distance into the reaction space by means of a short, straight line in the horizontal direction promoting metering screw.
  • the DE 2 249 453 A1 shows a granular fuel supply device to a pressurized furnace chamber by means of two screw conveyors.
  • a first auger conveys the material away from a non-pressurized sampling point and compresses it at its end to a tight stopper.
  • the plug is scraped by a device again and the mashed material is fed through a second screw conveyor to the furnace.
  • the second conveyor line is under the pressure prevailing in the oven room. If anything, the proposed method can work only for a very narrow group of materials to be conveyed, and only at low pressures, and certainly requires a lot of supervision and maintenance.
  • a method and a device according to the preamble of claims 1 and 7 is in the document DE 4338161 A1 disclosed.
  • the object underlying the invention is to provide a method and an apparatus for the feeding of eligible material to and in reaction furnaces, in which also an overpressure can prevail.
  • the conveying should be robust against variations in composition, particle size distribution and other material properties of the material being conveyed. It should also dry material whose particles to pipe walls, etc. have a high coefficient of friction, can be supplied. It should not necessarily be necessary, together with the material to be conveyed to introduce a high proportion of conveying air or conveying gas in the reaction furnace.
  • the conveying should work safely and robustly even with very long conveyor lines, which may also include directional changes, rising sections and distribution points.
  • the cavity opens into the furnace chamber through a connecting tube, which is designed as a lance, which has a reduced cross-sectional area in relation to the upstream conveying strand.
  • the material to be conveyed is moved into the initial region of the lance with the aid of a non-pressure mechanical conveyor.
  • the material is introduced either via a pump or via a lock and a closed in the operating condition of the outside air reservoir.
  • the reservoir itself is designed as a lock.
  • the space requirement on the furnace wall is low and the backpressure from the furnace does not lead to great forces, which tend to push the lance away from the furnace.
  • the lance is cooled.
  • the material to be conveyed is also moved to lying away from the furnace areas of the conveyor line within the pressure-tight closed by the outside air cavity by means of pressure-free working mechanical conveyor.
  • pressure-free mechanical conveyors are used not only for direct discharge from the reservoir or for direct entry into the reaction furnace, but especially on those sections of the conveying path, which completely of reservoir and reaction furnace several meters far lie away. It is particularly advantageous to apply such conveyors on upwardly leading and / or curved sections and / or before and after branching points of the conveying section, since in these sections other conveying means are increasingly problematic.
  • Pressure-free mechanical conveyors in the sense of this invention are those in which it is not necessary for the conveying function that propagates a pressure in the material to be conveyed along the conveying path, or that a gaseous or liquid conveying medium moves the material to be conveyed, but in the material to be conveyed is moved substantially by direct contact with a moving surface of the conveyor.
  • a non-pressurized mechanical conveyor generally causes no division of the conveyor line in different pressure ranges.
  • An example of such a conveyor is a conveyor belt. Regardless of the length of the conveying path, the non-pressurized delivery does not change the pressure in the conveyed material or in the gas surrounding the material.
  • the conveyor line is very long and also rising and / or angled and / or curved form.
  • the reservoir from which material is conveyed away be located very far away from the reaction furnace, which space problems can be avoided on the furnace.
  • the reservoir is advantageously itself designed as a lock, the reservoir is alternately once associated with the outside air and filled in this state, and secondly decoupled from the outside air, connected to the pressure-tight closed by the ambient air cavity and emptied into this.
  • the feeding of eligible materials to reaction furnaces zoom in a closed by the outside air cavity by means of pressure-free working mechanical conveyor is particularly advantageous in combination with a connecting pipe to the furnace interior, which is designed as a lance, which has a relation to the upstream conveyor strand reduced cross-sectional area. But it is also useful in almost every other embodiment of the implementation through the furnace wall.
  • Preference is conveyed by means of a screw conveyor in the initial region of the lance, since this structure is simple and robust.
  • the risk of clogging at the entrance to the lance can be particularly well reduced by the fact that from the side of the non-pressurized mechanical conveyor ago, the tip of a pointed hollow body protrudes to the input of the lance and that in the region of the tip of this body from a or more orifices of air or gas, which is in the body at a higher pressure than the furnace pressure.
  • the pointed body may be formed by the hollow axis of an axle-guided auger.
  • the non-pressurized delivery does not change the pressure in the conveyed material or in the gas surrounding the material.
  • a first additional aspect of the invention relates to a method for feeding eligible materials to a reaction furnace by a pressure-tight sealed from the outside air, opening into the furnace chamber via a connecting tube cavity, wherein the materials via a lock and a reservoir whose interior in the operating state with the is closed by the outside air pressure sealed cavity, are introduced into this cavity and therein in at least one stretch, which is located both from the reservoir and from the furnace, are conveyed with at least one non-pressure mechanical conveyor.
  • the connecting tube of the pressure-tight closed by the ambient air cavity towards the furnace chamber is formed as a lance, which is opposite to the upstream conveying line has reduced cross-sectional area and through this lance flows an air or gas stream into the furnace chamber.
  • this is conveyed by a non-operating mechanical conveyor into the initial region of the lance.
  • a second additional aspect of the invention relates to a device for feeding eligible materials to a reaction furnace by a pressure-tight sealed from the outside air, opening into the furnace chamber via a connecting tube cavity, wherein the device comprises a lock for the materials and a reservoir, wherein the reservoir is connected in the operating state with the pressure-sealed by the outside air cavity, and wherein in this cavity in at least one stretch, which is located both from the reservoir and from the furnace, at least one non-pressure working mechanical conveyor is arranged.
  • this second additional aspect prevails in the cavity a relative to the furnace chamber elevated air or gas pressure prevails and the connecting pipe to the furnace chamber is formed as a lance, which has a relation to the upstream conveyor strand reduced cross-sectional area.
  • a pressure-less mechanical conveyor is arranged in the cavity in front of the connecting tube to the furnace chamber forming lance, the effect of which extends into the initial region of the lance.
  • this non-pressure working mechanical conveyor is an axisless screw conveyor.
  • this non-pressure working mechanical conveyor is a blast wheel.
  • the pressure-tight sealed from the outside air cavity is filled with inert gas.
  • the pressure-tight closed by the outside air cavity comprises a reservoir formed as a mixer.
  • the conveyed materials are waste and / or residues and the conveyor line opens into the pressure zone of a shaft furnace for crude steel production.
  • Fig. 1 is conveyed from a reservoir 2, however, any discharged material 1 by means of one or more screw conveyors 3 to a transfer room 4 and from this using a further screw conveyor 5 through a trained as a pipe lance 6 through an opening in the furnace wall 7.1 in the furnace chamber. 7 brought.
  • Reservoir and conveyor line are completed by the outside air and are at least under the same high air pressure (or gas pressure) p1 as the pressure level p2 in the oven chamber. 7
  • the screw conveyors 3, 5 divide the flow of material 1 in the feed train into small batches, which are each arranged between two screw flights and push them forward in the conveying direction. There is no compression of the material, because unlike a pressurized promotion in a pressure tube no strand occurs in which over a considerable distance each rear material lying front material against the friction on pipe walls must continue to push.
  • the storage container 2 or a pump which can be used instead can thus also be placed far away from the reaction furnace in which the material is to be conveyed. This space problems in the vicinity of the reaction furnace can be avoided.
  • the non-operating mechanical conveyors according to the invention can be very well supplemented by a conveying path which is based on conveying air.
  • a conveying path which is based on conveying air.
  • the conveying air is that which is supplied by the pumps 21 and 22 to the conveyor train and ultimately flows through the lance 6 to the pressure level p2 in the furnace chamber 7. Due to the space conditions, the high furnace pressure and the high temperature prevailing at the point of introduction, this type of introduction is particularly advantageous for the supply of fuel or reaction material into the pressure zone of a shaft furnace for crude steel production.
  • a screw conveyor 5 which is adapted in diameter to the inner diameter of the lance 6, used to material from the conveying area with a larger cross-sectional area in the lance, which has a comparatively very small flow cross-section to contribute. Due to their small diameter, the screw conveyor 5 must rotate relatively quickly. The at high screw speeds due to centrifugal problematic filling the helical interspaces with the material to be delivered is substantially improved by the flow of air from the pressure range p1 in the delivery channel in the pressure range p2 in the oven. If the lance 6 is just straight, needs to be promoted by means of the screw conveyor 5 only in its initial region into it. Due to the very fast rotating screw conveyor 5, the material is loosened strengthened whereby the burning behavior is improved.
  • screw conveyor 5 can also be a blast wheel 15 as a pressure-free working mechanical conveyor ( Fig. 3 ) be used.
  • a blast wheel 15 as a pressure-free working mechanical conveyor ( Fig. 3 ) be used.
  • motor-driven fast-rotating, equipped with blades or similar on the circumference protruding parts wheel the flow of material to be conveyed is introduced and divided by the blades or similar parts into small, separate batches and thrown by centrifugal force.
  • Fig. 2 differs from that according to Fig. 1 in that a flexible screw conveyor 13 is arranged in front of the last screw conveyor 5, which conveys support by an air flow into the lance 6.
  • This consists of a flexible shaftless auger and a surrounding hose.
  • Such an embodiment is advantageous over a rigid embodiment, since it allows the maintenance work often required at the point of introduction into the furnace to be carried out more rapidly.
  • Fig. 2 is symbolized by the dashed lines indicated compressed air line 24 that the conveying air can be fed either directly to the lance the conveyor line, or even at the beginning of the flexible section of the conveyor line.
  • the flexible screw section can also be realized by a hose alone, without conveyor screw disposed therein.
  • a variant of the invention is outlined, in which the supply from the outside with the pressure p0 in the delivery area p1 is not by means of a reservoir 2 to be filled discontinuously, but continuously or quasi-continuously by means of a sufficiently pressure-tight pump 12.
  • Pumps for such applications are available, for example, under the name solid piston pump.
  • the material to be delivered passes through a hose to a trained in this example as a blast wheel 15, non-pressure working mechanical conveyor.
  • This, motor driven fast rotating, equipped with blades or similar on the circumference protruding parts wheel divides the optionally formed by the pressure of the pump 12 strand of material back into small, separate batches and hurls them into the lance 6, through which they in enter the oven room 7.
  • Fig. 4 is illustrated that it is not excluded in that conveyor line, which is closed by the outside air to promote by means of partial sections 8 material also by means of conveying air.
  • a conveyor line which is closed by the outside air to promote by means of partial sections 8 material also by means of conveying air.
  • branch-free and straight sections can be a pneumatic promotion, so set up a promotion means of conveying air. So that not too much air is injected, as in Fig. 4 sketched conveying air after the end of such routes 8 are sucked off again by means of a pump 26.
  • the introduction of the material into the furnace chamber can also take place without conveying air.
  • inventive method and apparatus according to the invention are particularly advantageous for the introduction of granular, dry or wet waste and residues applicable in ovens, as exactly these substances or mixtures are subject in their consistency strong, often difficult to predict fluctuations of those physical properties "Flowability” and “eligibility” influence and because the inventive method and the device of the invention extremely robust against such fluctuations works.
  • furnaces for cement production and blast furnaces are particularly important for the crude steel production.
  • waste and residues can be burned profitably and environmentally friendly with the additional effect of saving fossil fuels.
  • the method according to the invention and by the device according to the invention more and more different waste and residues can be supplied to this use under economic conditions.
  • the robustness of the function of the method according to the invention or of the device according to the invention is particularly effective.
  • the storage container 2 may itself be designed as a rotating, correspondingly sealed against outside air, possibly under overpressure drum mixer and / or include a stirrer.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Nozzles (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Claims (15)

  1. Procédé visant à acheminer des matières admissibles dans un four de réaction, à travers une cavité fermée de manière étanche à la pression de l'air extérieur et débouchant dans la chambre du four par un tube de liaison, les matières (1) issues de la cavité fermée de manière étanche à la pression de l'air extérieur dans la chambre du four (7) étant introduites par un tube de liaison ayant la forme d'une lance (6), la lance présentant une surface de section transversale réduite par rapport à la ligne du convoyeur en amont, caractérisé en ce qu'un air ou un flux de gaz s'écoule dans la chambre du four (7) depuis la zone en amont de la lance de la cavité fermée de manière étanche à la pression de l'air extérieur, et en ce qu'il est véhiculé par un convoyeur mécanique (5, 15) fonctionnant sans pression dans la zone initiale de la lance.
  2. Procédé selon la revendication 1, caractérisé en ce qu'il est véhiculé par une vis transporteuse (5) sans arbre dans la zone initiale de la lance (6).
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la pointe d'un corps creux pointu s'étend à partir du côté du convoyeur mécanique fonctionnant sans pression jusqu'à la zone initiale de la lance et en ce que dans la zone dudit corps se dégage de l'air ou du gaz à partir d'une ou plusieurs ouvertures, qui est dans le corps à une pression supérieure à la pression du gaz dans la chambre du four (7).
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les matières sont introduites dans ladite cavité par un sas et un réservoir (2) dont l'intérieur est relié en état de marche avec la cavité fermée de manière étanche à la pression de l'air extérieur et sont véhiculées dans au moins une section de voie se trouvant à mi-distance du réservoir et du four, avec au moins un convoyeur mécanique fonctionnant sans pression (3, 13).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les déchets et/ou les matières résiduelles sont convoyés dans un four de réaction.
  6. Procédé selon la revendication 5, caractérisé en ce que la matière est convoyée dans la zone de pression d'un four à cuve pour la production d'acier brut.
  7. Dispositif visant à acheminer des matières admissibles dans un four de réaction, à travers une cavité fermée de manière étanche à la pression de l'air extérieur et débouchant dans la chambre du four par un tube de liaison, les matières (1) issues de la cavité fermée de manière étanche à la pression de l'air extérieur dans la chambre du four (7) étant introduites par un tube de liaison ayant la forme d'une lance (6), la lance présentant une surface de section transversale réduite par rapport à la ligne du convoyeur en amont, caractérisé en ce qu'un air ou un flux de gaz s'écoule dans la chambre du four depuis la zone en amont de la lance de la cavité fermée de manière étanche à la pression de l'air extérieur, et en ce qu'il soit véhiculé par un convoyeur mécanique (5, 15) fonctionnant sans pression, disposé dans la zone initiale de la lance (6).
  8. Dispositif selon la revendication 7, caractérisé en ce qu'une vis transporteuse (5) est disposée sur la zone initiale de la lance (6).
  9. Dispositif selon la revendication 8, caractérisé en ce que la vis transporteuse (5) est sans arbre.
  10. Dispositif selon l'une quelconque des revendications 7 à 9, caractérisé en ce que le dispositif comprend un sas pour les matières et un réservoir, le réservoir étant relié en état de marche à la cavité fermée de manière étanche à la pression de l'air extérieur, et au moins un convoyeur mécanique (3,13) fonctionnant sans pression étant disposé dans cette cavité dans au moins un tronçon, lequel se trouve à mi-distance du réservoir et du four (7).
  11. Dispositif selon l'une quelconque des revendications 7 à 10, caractérisé en ce que la cavité fermée de manière étanche à la pression de l'air extérieur est remplie de gaz inerte.
  12. Dispositif selon la revendication 11, caractérisé en ce que la cavité fermée de manière étanche à la pression de l'air extérieur comprend un réservoir (2) conçu comme un mélangeur.
  13. Dispositif selon l'une quelconque des revendications 7 à 12, caractérisé en ce que la pointe d'un corps creux pointu s'étend à partir du côté du convoyeur mécanique (5, 15) fonctionnant sans pression jusqu'à la zone initiale de la lance (6), en ce que ladite pointe comporte au moins une ouverture et en ce qu'il règne une pression de gaz plus élevée que celle de la chambre du four (7) dans le corps creux pointu.
  14. Dispositif selon l'une quelconque des revendications 7 à 13, caractérisé en ce que les matières (1) véhiculées sont des déchets et/ou des matières résiduelles qui sont convoyées dans un four de réaction.
  15. Dispositif selon la revendication 14, caractérisé en ce que la lance (6) débouche dans la zone de pression d'un four à cuve pour la production d'acier brut.
EP09757318.2A 2008-06-05 2009-06-05 Procédé et dispositif pour l'acheminement de matériaux transportables dans des réacteurs Active EP2297519B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200810026836 DE102008026836B4 (de) 2008-06-05 2008-06-05 Verfahren und Vorrichtung zur Materialförderung durch eine Ofenwand
DE102008026835A DE102008026835A1 (de) 2008-06-05 2008-06-05 Verfahren und Vorrichtung zum Zufördern von förderfähigen Materialien zu Reaktionsöfen
PCT/EP2009/004061 WO2009146935A2 (fr) 2008-06-05 2009-06-05 Procédé et dispositif pour l'acheminement de matériaux transportables dans des réacteurs

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EP2297519A2 EP2297519A2 (fr) 2011-03-23
EP2297519B1 true EP2297519B1 (fr) 2014-05-07

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AT510896B1 (de) * 2009-01-15 2013-08-15 Kurt Himmelfreundpointner Verfahren und vorrichtung für das fördern von förderfähigen materialien
CN102433146A (zh) * 2011-11-01 2012-05-02 中冶焦耐(大连)工程技术有限公司 采用螺旋输送系统的新型焦油渣添加工艺
FI124217B (en) * 2012-08-27 2014-05-15 Outotec Oyj ARRANGEMENTS FOR SUPPLYING FINE-CORN SUBSTANCE TO A SLEEVE OR STONE BURNER OF A SUSPENSION MELTED OVEN
CN103062786B (zh) * 2013-01-25 2015-05-20 福建永恒能源管理有限公司 一种新型煤粉计量式气动储供系统
CN104670917B (zh) * 2015-01-29 2018-04-27 成都绿迪科技有限公司 一种自动气压配料装置
US20170226656A1 (en) * 2016-02-10 2017-08-10 Ebara Corporation Apparatus and method for supplying plating solution to plating tank, plating system, powder container, and plating method
WO2018113881A1 (fr) * 2016-12-20 2018-06-28 Aduro A/S Poêle mixte et utilisation d'un poêle mixte
EP3434632A1 (fr) * 2017-07-25 2019-01-30 Knauf PFT GmbH & Co. KG Dispositif et procédé d'acheminement de matériau constitué d'au moins principalement de particules solides, en particulier poudre, par exemple mortier sec
CN108534165B (zh) * 2018-03-27 2020-08-28 上海金联热电有限公司 一种供料装置以及带有该装置的锅炉燃烧系统

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EP2297519A2 (fr) 2011-03-23
CN102159889A (zh) 2011-08-17
WO2009146935A3 (fr) 2011-12-29
WO2009146935A2 (fr) 2009-12-10

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