EP1787079B1 - Charging device for a strip sintering machine - Google Patents

Charging device for a strip sintering machine Download PDF

Info

Publication number
EP1787079B1
EP1787079B1 EP05774028A EP05774028A EP1787079B1 EP 1787079 B1 EP1787079 B1 EP 1787079B1 EP 05774028 A EP05774028 A EP 05774028A EP 05774028 A EP05774028 A EP 05774028A EP 1787079 B1 EP1787079 B1 EP 1787079B1
Authority
EP
European Patent Office
Prior art keywords
feeding
sintered
chute
container
drum
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.)
Not-in-force
Application number
EP05774028A
Other languages
German (de)
French (fr)
Other versions
EP1787079A1 (en
Inventor
Oskar Pammer
Hans Stiasny
Karl Laaber
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 VAI METALS Technologies GmbH
Original Assignee
SIEMENS VAI METALS TECHNOLOGIES GmbH
Siemens VAI Metals Technologies GmbH Austria
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 SIEMENS VAI METALS TECHNOLOGIES GmbH, Siemens VAI Metals Technologies GmbH Austria filed Critical SIEMENS VAI METALS TECHNOLOGIES GmbH
Publication of EP1787079A1 publication Critical patent/EP1787079A1/en
Application granted granted Critical
Publication of EP1787079B1 publication Critical patent/EP1787079B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F27B21/06—Endless-strand sintering machines
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/18—Sintering; Agglomerating in sinter pots
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
    • 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

Definitions

  • the invention relates to a feeding device for a band-edge sintering machine, with a feed container for receiving the material to be sintered, with a conveyor for filling the feed hopper with material to be sintered, with a feed drum and a drum chute for the task of sintering the material on the sintering belt.
  • the invention further relates to a method for depositing material to be sintered onto a sintering belt.
  • the thickness of the layer applied to the sintering belt is preferably increased.
  • layer thicknesses of about 300 to 350 mm were common.
  • sintering machines are already being operated with layer thicknesses of up to 850 mm. This can only be achieved without reducing the productivity if the permeability of the mixture improves and / or the negative pressure in the suction system is increased.
  • the increase in the layer thickness would therefore have the advantage that - based on the total sintered amount - relatively less coke would be needed.
  • the JP 2001-227872 discloses a two-layer feed of sintered material via a feed bunker having two discharge openings.
  • the sintered material is charged into the feed bunker in such a way that segregation occurs.
  • Each of the discharge openings is assigned a complete system of conveyor, feed drum and drum chute.
  • a disadvantage of this variant is the high maintenance costs, as well as a complicated and trouble-prone control of two task drums.
  • the object is achieved in a feeding device for a band-edge sintering machine according to the preamble of claim 1 by the features of the characterizing part of claim 1.
  • the object is further achieved in a method according to the preamble of claim 9 by the features of the characterizing part of claim 9.
  • the location of the charge of the material to be sintered in the feed container causes segregation of the material to be sintered.
  • the slope of the embankment corresponds to the mean discharge angle of the charged material.
  • the impact point of the material conveyed by the conveyor is chosen to be in the range comes, which lies above the first discharge opening.
  • the charged material can segregate, ie coarse grain rolls along the embankment downwards, fine grain remains at the top of the embankment.
  • specifically lighter coke breeze preferably remains in the topsheet.
  • the thus separated into coarse and fine grain material is now discharged through the respective area associated discharge and fed to the sintering belt, namely the coarse grain in free flow through adireschurre directly to the sintering belt or the grate thereon, and the fine grain on a feeding drum and subsequent drum chute on the already located on the sintering belt layer of coarse grain.
  • a task chute Compared to a discharge of the coarse grain by a second feeding drum has a task chute has the advantage that the sintering raw mixture can leak out of it freely and always adjusts a defined layer height at a once selected arrangement and geometry of the feed chute. The surface of this layer is completely flat and requires no further measure to produce a flat surface. The agglomerates previously formed in a mixing and rolling device are not damaged in the free run out of the task chute.
  • the layer of material to be sintered produced in this way has a grain size increasing from top to bottom. Surprisingly, the coke content in the bed is also rising from bottom to top.
  • the conveying device is arranged such that it has a point of impact of the conveyed material at or near the side wall of the feed container, viewed in the direction of movement of the sintering belt from the vertical central axis of the feeding container.
  • the forming embankment has the largest possible length, so that there is a particularly effective segregation of coarse and fine grain.
  • the conveying device comprises a baffle for targeted ejection of the material to be sintered.
  • a baffle which is designed for example as an inclined chute, facilitates precise charging of the material to be sintered at the desired location.
  • the baffle can be fixedly connected to the conveyor device according to a possible variant, according to a further variant, the baffle is fixedly installed in the feed container.
  • the conveying device can be different.
  • the conveying device comprises a pivoting conveyor or a pivoting chute or a Querverfahrband or a cross conveyor, which is movable transversely to the direction of movement of the sintering belt.
  • a pivoting conveyor is rotatably mounted in its rear region about an axis and can cover or fill the task container over its entire width by rotation about this axis.
  • the filling takes place parallel to the direction of movement and preferably also in the direction of movement of the sintering belt, so that the segregation within the feed container is parallel to the direction of movement of the sintering belt. Segregation transverse to the direction of movement of the sintering belt is undesirable, because this would mean that coarse grain comes to rest on the edges of the sintering belt.
  • a pivoting chute is - similar to a pivoting conveyor - rotatably mounted about an axis. In contrast to the pivoting conveyor, the conveying process takes place in the task chute but by gravitational forces.
  • a transverse conveyor belt is a short conveyor belt of about 5 - 8 meters in length, which is arranged so that its conveying direction is parallel to the direction of movement of the sintering belt.
  • the transverse conveyor belt is fed from the side, for example by a transverse conveyor, or by a conveyor, whose conveying direction is also parallel to the direction of movement of the sintering belt, with material to be sintered, which is dropped by the transverse conveyor at the desired location in the feed bunker.
  • the cross conveyor is moved along the entire width of the feed hopper together with the cross conveyor or other conveyor in order to ensure a uniform material feed.
  • the conveyor device can also be formed by a transverse conveyor, which is advantageously movable transversely to the direction of movement of the sintering belt.
  • the conveyor device also comprises a guide plate, wherein the guide plate is either attached to the cross conveyor or fixedly installed in the feed container.
  • the baffle is desirable in order to redirect the filling direction effected by the cross conveyor from "transversely to the direction of movement of the sintering belt" in a filling direction "parallel to the direction of movement of the sintering belt". Otherwise, an undesirably high level of segregation would occur across the tape movement direction.
  • the conveying device can also be moved to an extent parallel to the direction of movement of the sintering belt, so that the grain size segregation can also be influenced by targeted selection of the impact point.
  • the size and / or position of the second discharge opening can be changed.
  • the second discharge opening is advantageously made e.g. Resizable by slider. If the size of the discharge opening is changed by a slide, the middle position of the discharge opening and thus also that portion of the particle size spectrum which the material discharged through the discharge opening from the feed container changes.
  • the grain size composition of the coarse grain applied to the sintering belt can be influenced in an advantageous manner.
  • the feed chute In order to set the maximum amount of material to be sintered per unit time, the feed chute can be pivoted about a horizontal axis and / or the feed chute can be adjusted in the vertical direction and / or the size of the discharge opening of the feed chute can be changed.
  • a feed chute offers the possibility to keep a set layer thickness constant without any further control intervention, without the risk of caking and with always flat surface.
  • a device for preheating the material fed onto the sintering belt is arranged between the feed chute and the drum chute.
  • the device is formed for preheating with recirculated combustion exhaust gases or heated air.
  • This device has the purpose to heat the material to be sintered, which has a moisture content of about 5 to 7%, so that the amount of heat to be applied thereafter is generally lower. Likewise, the condensation of water vapor on the lower layer is reduced during the later sintering process.
  • the material to be sintered can also be predried by the device for preheating. If desired, other gases can be introduced via this device in the material to be sintered.
  • the feed device has a probe with the aid of which the thickness of the layer applied to the coarse-grain layer by the feed drum and the drum chute is measured. This probe is used to measure the feed rate of the To control the feed drum, if the measured layer thickness deviates from a preset setpoint.
  • a separate control of the layer height of the coarse grain layer is unnecessary, because the thickness of this layer remains constant because of the task by means of feed chute - once set.
  • the invention also relates to a method for the task of sintering material to a sintered belt according to the preamble of claim 9.
  • the object of the invention is achieved in this method by the features of the characterizing part of claim 9.
  • Fig. 1 is placed on the grid of a sintering belt 1, which is moved in the direction of arrow 2 , grate 3 via a chute 4 .
  • the device 5 for the purpose of grate coating 3 is subordinated in the strip running direction 2, the feed device 6 according to the invention.
  • Into the feed container 7 is filled via the conveyor 8 to be sintered material.
  • the conveyor 8 comprises a pivoting conveyor 10, an enclosure 11, and a guide plate 12 for the exact positioning of the impact point 27 of the conveyor.
  • the feed container 7 has two discharge openings 13,14, wherein the flowing via the first discharge opening 13 material is fed 9b with a feed drum 15 and a subsequent drum chute 16 onto the sintering belt 1, or on the already located thereon material 9a.
  • the effluent from the second discharge opening 14 material is given by means of the subsequent to the second discharge opening 14assischurre 17 on the sintering belt 1 and on the already thereon located grate 3 .
  • an embankment 18 is formed in the feed container 7 .
  • this embankment 18 segregates the material to be sintered 9, which is usually abandoned as far as possible above the embankment 18 .
  • the second discharge opening 14 is positioned so that predominantly coarse grain, but at least a larger proportion of coarse grain is discharged, as is the case with the first discharge opening 13 .
  • the feed chute 17 is pivotable about an axis 19 .
  • the position of the feed chute 17 in the vertical direction can also be changed (setting possibility in the vertical not shown).
  • a preheating hood 21 is arranged, which serves to preheat the discontinued on the sintering belt 1 coarse grain fraction.
  • a suitable probe 22 by means of which the layer thickness of the fine grain fraction is measured. If there is a deviation from a setpoint, the working speed of the feed drum is changed accordingly.
  • a suitable probe 22 may be designed as an ultrasound probe.
  • a suitable probe 22 can also be formed by at least two sensors of different lengths, one of which always has to dive into the bed. When both or none of the probes are immersed, the working speed of the feeding drum is interfered with. As already explained, a regulation of the layer thickness of the coarse grain fraction is unnecessary.
  • a further probe 23 is provided, by means of which the level is controlled in the feed container, which is intervened in a deviation from a desired value in the flow rate of the conveyed material of the conveyor regulating.
  • a suitable probe 23 is preferably designed as an ultrasound probe.
  • pivoting conveyor 10 is pivotable about an axis of rotation 24 in the horizontal. As a result, the pivoting conveyor 10 can sweep the filling container 7 in the entire width and fill. On the pivoting conveyor 10 is in near the axis of rotation 24, the material to be sintered by means of a conveyor belt 25 abandoned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Discharge Of Articles From Conveyors (AREA)

Abstract

The invention relates to a charging device (6) for a strip-sintering machine, comprising a charging container (7) which receives the material (9) that is to be sintered, a conveying device (8) used to fill the charging container (7) with material (9) that is to be sintered, a charging drum (15) and a drum chute (16) used to charge the material (9) that is to be sintered onto the sintering strip (1). The charging container (7) is provided with two discharge openings (13, 14) wherein one is connected to a discharge drum (15) and another is connected to a charging chute (17). As a result, it is possible to reduce maintenance costs, increase productivity and homogenize sintering quality.

Description

Die Erfindung betrifft eine Aufgabevorrichtung für eine Bandsintermaschine, mit einem Aufgabebehälter zur Aufnahme des zu sinternden Materials, mit einer Fördereinrichtung zum Befüllen des Aufgabebehälters mit zu sinterndem Material, mit einer Aufgabetrommel und einer Trommelschurre zur Aufgabe des zu sinternden Materials auf das Sinterband. Die Erfindung betrifft weiters ein Verfahren zur Aufgabe von zu sinterndem Material auf ein Sinterband.The invention relates to a feeding device for a band-edge sintering machine, with a feed container for receiving the material to be sintered, with a conveyor for filling the feed hopper with material to be sintered, with a feed drum and a drum chute for the task of sintering the material on the sintering belt. The invention further relates to a method for depositing material to be sintered onto a sintering belt.

Aus ökonomischen Gründen ist die Hüttenindustrie bestrebt, die Produktivität von Sinteranlagen immer weiter zu erhöhen. Dazu wird - als eine von mehreren Möglichkeiten - bevorzugt die Dicke der auf das Sinterband aufgegebenen Schicht erhöht. Bis vor wenigen Jahren, z.T. aber auch noch heute, waren Schichtdicken von etwa 300 bis 350 mm üblich. Zur Zeit werden Sintermaschinen aber auch schon mit Schichtdicken von bis zu 850 mm betrieben. Dies kann nur dann ohne Verringerung der Produktivität erzielt werden, wenn die Permeabilität der Mischung verbessert und/oder der Unterdruck im Saugsystem erhöht wird.For economic reasons, the metallurgical industry strives to increase the productivity of sintering plants ever more. For this purpose, as one of several possibilities, the thickness of the layer applied to the sintering belt is preferably increased. Until a few years ago, z.T. but even today, layer thicknesses of about 300 to 350 mm were common. At present, however, sintering machines are already being operated with layer thicknesses of up to 850 mm. This can only be achieved without reducing the productivity if the permeability of the mixture improves and / or the negative pressure in the suction system is increased.

Bei ansteigender Schichtdicke nimmt mit deren Zunahme und ansonsten unveränderten Parametern im Bereich des Aufgabesystems auch der Kokseinsatz zu. Ein Teil dieses Kokses wäre jedoch zur vollständigen Durchsinterung des Sinterbettes nicht erforderlich, weil die unteren Schichten - noch bevor sie gezündet werden - ohnehin durch die von oben nach unten durch das Bett gesaugten Verbrennungsabgase getrocknet, erwärmt und schließlich stark erhitzt werden.As the layer thickness increases, the increase in coking and the otherwise unchanged parameters in the area of the feed system also increase. However, a portion of this coke would not be required for complete sintering of the sinter bed because the lower layers are dried, heated, and finally heated to a high degree by the combustion exhaust gases drawn down through the bed from top to bottom before being ignited.

Die Erhöhung der Schichtdicke hätte daher den Vorteil, dass - bezogen auf die insgesamt gesinterte Menge - relativ weniger Koks benötigt würde.The increase in the layer thickness would therefore have the advantage that - based on the total sintered amount - relatively less coke would be needed.

Es wurde versucht, dieses Problem durch Aufgabe von zwei Schichten Sintermaterial zu lösen, wobei die zwei Schichten einen jeweils unterschiedlichen Koksgehalt aufweisen. Mit dieser Variante konnte diese Aufgabe jedoch nur unzureichend gelöst werden. Darüber hinaus sind zwei separate Misch- und Aufgabevorrichtungen erforderlich, was den apparativen und wartungstechnischen Aufwand erhöht.It has been attempted to solve this problem by applying two layers of sintered material, the two layers each having a different coke content. With this variant, however, this task could only be solved inadequately. In addition, two separate mixing and feeding devices are required, which increases the equipment and maintenance costs.

Es wurde erkannt, dass der Koksverbrauch durch Klassierung und Segregation des aufgegebenen Sintermaterials in vertikaler Richtung verringert werden kann, wobei als Grundvoraussetzung stets eine gleich bleibende hohe Sinterqualität eingehalten werden soll.It was recognized that the coke consumption can be reduced by classification and segregation of the abandoned sintered material in the vertical direction, with the basic requirement always being to maintain a consistently high sintering quality.

Es ist Stand der Technik, bestehende Aufgabevorrichtungen mit Klassierungseinrichtungen auszustatten, welche aus der Sinterrohmischung einen großen Teil der groben Partikel abscheiden und im unteren Bereich der aufgegebenen Schicht konzentrieren. Dafür ist aber eine besondere Aufbereitung des festen Brennstoffes, insbesondere eine Verringerung des Grobkornanteils, erforderlich.It is state of the art to equip existing feeders with classifiers which deposit a large portion of the coarse particles from the sintering raw mix and concentrate them at the bottom of the discontinued layer. But this is a special treatment of the solid fuel, in particular a reduction of the coarse grain content required.

Es ist weiters bekannt, bei einer Aufgabevorrichtung die Trommelschurre derart auszubilden, dass durch den Aufgabevorgang die Mischgutsegregation erzielt wird. Damit lassen sich aber keine großen Schichtdicken bei gleichzeitig guter Segregation erzielen.It is also known to form the drum chute in a feeding device such that the Mischgutsegregation is achieved by the task. However, it is not possible to achieve large layer thicknesses with good segregation.

Die JP 2001-227872 offenbart eine Zweischichtaufgabe von Sintermaterial über einen Aufgabebunker mit zwei Austragsöffnungen. Das Sintermaterial wird so in den Aufgabebunker chargiert, dass es darin zu einer Segregation kommt. Jeder der Austragsöffnungen ist ein komplettes System aus Fördervorrichtung, Aufgabetrommel und Trommelschurre zugeordnet. Nachteilig an dieser Variante sind die hohen Instandhaltungskosten, sowie eine komplizierte und störungsanfällige Steuerung von zwei Aufgabetrommeln.The JP 2001-227872 discloses a two-layer feed of sintered material via a feed bunker having two discharge openings. The sintered material is charged into the feed bunker in such a way that segregation occurs. Each of the discharge openings is assigned a complete system of conveyor, feed drum and drum chute. A disadvantage of this variant is the high maintenance costs, as well as a complicated and trouble-prone control of two task drums.

Es ist daher die Aufgabe der gegenständlichen Erfindung, den bekannten Stand der Technik derart weiterzuentwickeln, dass damit bei geringen Instandhaltungskosten und einfacher Steuerung eine hohe Produktivität mit hohen Sinterschichtdicken, eine gleichmäßige hohe Sinterqualität und gleichzeitig ein niedrigerer Koksverbrauch erzielt wird.It is therefore the object of the subject invention to further develop the known state of the art such that, with low maintenance costs and simple control, a high productivity with high sinter layer thicknesses, a uniform high sinter quality and at the same time a lower coke consumption is achieved.

Die gestellte Aufgabe wird bei einer Aufgabevorrichtung für eine Bandsintermaschine nach dem Oberbegriff des Anspruchs 1 durch die Merkmale des kennzeichnenden Teils des Anspruchs 1 gelöst. Die gestellte Aufgabe wird weiters bei einem Verfahren nach dem Oberbegriff des Anspruchs 9 durch die Merkmale des kennzeichnenden Teils des Anspruchs 9 gelöst.The object is achieved in a feeding device for a band-edge sintering machine according to the preamble of claim 1 by the features of the characterizing part of claim 1. The object is further achieved in a method according to the preamble of claim 9 by the features of the characterizing part of claim 9.

Durch die zwei Austragsöffnungen ist der Aufgabebehälter in zwei Bereiche geteilt, wobei aus jedem dieser Bereiche das zu sinternde Material überwiegend durch jeweils eine der beiden Austragsöffnungen ausgetragen wird.Through the two discharge openings of the feed container is divided into two areas, wherein from each of these areas, the material to be sintered is discharged predominantly by one of the two discharge openings.

Durch den Ort der Chargierung des zu sinternden Materials in den Aufgabebehälter wird eine Segregation des zu sinternden Materials bewirkt. Im Aufgabebehälter bildet sich eine Schüttung mit einer Böschung aus. Die Steigung der Böschung entspricht dabei dem mittleren Schüttungswinkel des chargierten Gutes. Der Auftreffpunkt des von der Fördervorrichtung geförderten Materials ist so gewählt, dass er in dem Bereich zu liegen kommt, der über der ersten Austragsöffnung liegt. Entlang der sich dadurch ausbildenden Böschung kann sich das chargierte Material segregieren, d.h. Grobkorn rollt entlang der Böschung nach unten, Feinkorn verbleibt an der Spitze der Böschung. Ebenso bleibt spezifisch leichterer Koksgrus bevorzugt in der Oberschicht.The location of the charge of the material to be sintered in the feed container causes segregation of the material to be sintered. In the feed container forms a bed with an embankment. The slope of the embankment corresponds to the mean discharge angle of the charged material. The impact point of the material conveyed by the conveyor is chosen to be in the range comes, which lies above the first discharge opening. Along the embankment that forms as a result, the charged material can segregate, ie coarse grain rolls along the embankment downwards, fine grain remains at the top of the embankment. Likewise, specifically lighter coke breeze preferably remains in the topsheet.

Das solchermaßen in Grob- und Feinkorn aufgetrennte Material wird nun durch die dem jeweiligen Bereich zugeordnete Austragsöffnung ausgetragen und auf das Sinterband aufgegeben, und zwar das Grobkorn in freiem Fluss durch eine Aufgabeschurre direkt auf das Sinterband bzw. den darauf befindlichen Rostbelag, und das Feinkorn über eine Aufgabetrommel und anschließende Trommelschurre auf die bereits auf dem Sinterband befindliche Schicht aus Grobkorn.The thus separated into coarse and fine grain material is now discharged through the respective area associated discharge and fed to the sintering belt, namely the coarse grain in free flow through a Aufgabeschurre directly to the sintering belt or the grate thereon, and the fine grain on a feeding drum and subsequent drum chute on the already located on the sintering belt layer of coarse grain.

Gegenüber einem Austrag des Grobkorns durch eine zweite Aufgabetrommel hat eine Aufgabeschurre den Vorteil, dass die Sinterrohmischung daraus frei auslaufen kann und sich bei einer einmal gewählten Anordnung und Geometrie der Aufgabeschurre stets eine definierte Schichthöhe einstellt. Die Oberfläche dieser Schicht ist völlig eben und bedarf keiner weiteren Maßnahme zur Herstellung einer ebenen Oberfläche. Die zuvor in einer Misch- und Rolliereinrichtung gebildeten Agglomerate werden beim freien Auslaufen aus der Aufgabeschurre nicht beschädigt.Compared to a discharge of the coarse grain by a second feeding drum has a task chute has the advantage that the sintering raw mixture can leak out of it freely and always adjusts a defined layer height at a once selected arrangement and geometry of the feed chute. The surface of this layer is completely flat and requires no further measure to produce a flat surface. The agglomerates previously formed in a mixing and rolling device are not damaged in the free run out of the task chute.

Die auf diese Weise hergestellte Schicht aus zu sinterndem Material weist eine von oben nach unten ansteigende Korngröße auf. Überraschenderweise ist auch der Koksanteil in der Schüttung von unten nach oben ansteigend.The layer of material to be sintered produced in this way has a grain size increasing from top to bottom. Surprisingly, the coke content in the bed is also rising from bottom to top.

Gemäß einer vorteilhaften Ausführungsform ist die Fördervorrichtung derart angeordnet, dass sie einen Auftreffpunkt des geförderten Materials an bzw. nahe der von der vertikalen Mittelachse des Aufgabebehälters gesehen in Bewegungsrichtung des Sinterbandes liegenden Seitenwand des Aufgabebehälters aufweist.According to an advantageous embodiment, the conveying device is arranged such that it has a point of impact of the conveyed material at or near the side wall of the feed container, viewed in the direction of movement of the sintering belt from the vertical central axis of the feeding container.

Dadurch weist die sich ausbildende Böschung eine möglichst große Länge auf, sodass es zu einer besonders effektiven Entmischung von Grob- und Feinkorn kommt.As a result, the forming embankment has the largest possible length, so that there is a particularly effective segregation of coarse and fine grain.

Vorteilhafterweise umfasst die Fördervorrichtung ein Leitblech zum gezielten Abwurf des zu sinternden Materials.Advantageously, the conveying device comprises a baffle for targeted ejection of the material to be sintered.

Ein Leitblech, welches z.B. als schräg verlaufende Rutsche ausgeführt ist, erleichtert eine präzise Chargierung des zu sinternden Materials an der gewünschten Stelle. Das Leitblech kann nach einer möglichen Variante mit der Fördervorrichtung fix verbunden sein, nach einer weiteren Variante ist das Leitblech fix in den Aufgabebehälter eingebaut.A baffle, which is designed for example as an inclined chute, facilitates precise charging of the material to be sintered at the desired location. The baffle can be fixedly connected to the conveyor device according to a possible variant, according to a further variant, the baffle is fixedly installed in the feed container.

Die Fördervorrichtung kann verschieden ausgeprägt sein. Insbesondere umfasst die Fördervorrichtung einen Schwenkförderer oder eine Schwenkschurre oder ein Querverfahrband oder einen Querförderer, der quer zur Bewegungsrichtung des Sinterbandes verfahrbar ist.The conveying device can be different. In particular, the conveying device comprises a pivoting conveyor or a pivoting chute or a Querverfahrband or a cross conveyor, which is movable transversely to the direction of movement of the sintering belt.

Ein Schwenkförderer ist in seinem hinteren Bereich um eine Achse drehbar gelagert und kann durch Drehung um diese Achse den Aufgabebehälter über dessen gesamte Breite abdecken bzw. befüllen. Die Befüllung erfolgt dabei parallel zur Bewegungsrichtung und bevorzugterweise auch in Bewegungsrichtung des Sinterbandes, so dass auch die Segregation innerhalb des Aufgabebehälters parallel zur Bewegungsrichtung des Sinterbandes erfolgt. Eine Segregation quer zur Bewegungsrichtung des Sinterbandes ist unerwünscht, weil dies bedeuten würde, dass Grobkorn an den Rändern des Sinterbandes zu liegen kommt.A pivoting conveyor is rotatably mounted in its rear region about an axis and can cover or fill the task container over its entire width by rotation about this axis. The filling takes place parallel to the direction of movement and preferably also in the direction of movement of the sintering belt, so that the segregation within the feed container is parallel to the direction of movement of the sintering belt. Segregation transverse to the direction of movement of the sintering belt is undesirable, because this would mean that coarse grain comes to rest on the edges of the sintering belt.

Eine Schwenkschurre ist - ähnlich wie ein Schwenkförderer - um eine Achse drehbar gelagert. Im Gegensatz zum Schwenkförderer erfolgt der Fördervorgang bei der Aufgabeschurre aber durch Gravitationskräfte.A pivoting chute is - similar to a pivoting conveyor - rotatably mounted about an axis. In contrast to the pivoting conveyor, the conveying process takes place in the task chute but by gravitational forces.

Ein Querverfahrband ist ein kurzes Förderband von etwa 5 - 8 Meter Länge, das so angeordnet ist, dass seine Förderrichtung parallel zur Bewegungsrichtung des Sinterbandes ist. Das Querverfahrband wird von der Seite, etwa von einem Querförderer, oder von einem Förderer, dessen Förderrichtung ebenfalls parallel zur Bewegungsrichtung des Sinterbandes ist, mit zu sinterndem Material beschickt, welches vom Querverfahrband an der gewünschten Stelle im Aufgabebunker abgeworfen wird. Das Querverfahrband wird, gegebenenfalls gemeinsam mit dem Quer- oder sonstigen Förderer über die gesamte Breite des Aufgabebehälters verfahren, um eine gleichmäßige Materialaufgabe zu gewährleisten.A transverse conveyor belt is a short conveyor belt of about 5 - 8 meters in length, which is arranged so that its conveying direction is parallel to the direction of movement of the sintering belt. The transverse conveyor belt is fed from the side, for example by a transverse conveyor, or by a conveyor, whose conveying direction is also parallel to the direction of movement of the sintering belt, with material to be sintered, which is dropped by the transverse conveyor at the desired location in the feed bunker. If necessary, the cross conveyor is moved along the entire width of the feed hopper together with the cross conveyor or other conveyor in order to ensure a uniform material feed.

Die Fördervorrichtung kann auch von einem Querförderer gebildet werden, der vorteilhafterweise quer zur Bewegungsrichtung des Sinterbandes verfahrbar ist. Vorteilhafterweise umfasst die Fördervorrichtung auch ein Leitblech, wobei das Leitblech entweder an dem Querförderer befestigt oder fix in den Aufgabebehälter eingebaut ist. Das Leitblech ist wünschenswert, um die durch den Querförderer bewirkte Befüllungsrichtung von "quer zur Bewegungsrichtung des Sinterbandes" in eine Befüllungsrichtung "parallel zur Bewegungsrichtung des Sinterbandes" umzulenken. Ansonsten würde ein unerwünscht hohes Ausmaß an Segregation quer zur Bandbewegungsrichtung auftreten.The conveyor device can also be formed by a transverse conveyor, which is advantageously movable transversely to the direction of movement of the sintering belt. Advantageously, the conveyor device also comprises a guide plate, wherein the guide plate is either attached to the cross conveyor or fixedly installed in the feed container. The baffle is desirable in order to redirect the filling direction effected by the cross conveyor from "transversely to the direction of movement of the sintering belt" in a filling direction "parallel to the direction of movement of the sintering belt". Otherwise, an undesirably high level of segregation would occur across the tape movement direction.

Die Fördervorrichtung ist vorteilhafterweise auch in einem Ausmaß parallel zur Bewegungsrichtung des Sinterbandes verfahrbar, so dass durch gezielte Wahl des Auftreffpunktes auch die Korngrößensegregation beeinflusst werden kann.Advantageously, the conveying device can also be moved to an extent parallel to the direction of movement of the sintering belt, so that the grain size segregation can also be influenced by targeted selection of the impact point.

Um die durch die spezielle Befüllung des Aufgabebehälters bewirkte Segregation zusätzlich nutzen zu können, sind vorteilhafterweise Größe und/oder Position der zweiten Austragsöffnung veränderbar.In order to be able to additionally utilize the segregation caused by the special filling of the feed container, advantageously the size and / or position of the second discharge opening can be changed.

Dazu ist die zweite Austragsöffnung vorteilhafterweise z.B. durch Schieber in der Größe veränderbar. Wenn die Größe der Austragsöffnung durch einen Schieber verändert wird, ändert sich auch die mittlere Position der Austragsöffnung und damit auch derjenige Anteil des Korngrößenspektrums, den das durch die Austragsöffnung aus dem Aufgabebehälter ausgetragene Material aufweist.For this, the second discharge opening is advantageously made e.g. Resizable by slider. If the size of the discharge opening is changed by a slide, the middle position of the discharge opening and thus also that portion of the particle size spectrum which the material discharged through the discharge opening from the feed container changes.

Dadurch ist auf vorteilhafte Weise die Korngrößenzusammensetzung des auf das Sinterband aufgebrachten Grobkorns beeinflussbar.As a result, the grain size composition of the coarse grain applied to the sintering belt can be influenced in an advantageous manner.

Um die pro Zeiteinheit maximal aufgebbare Menge an zu sinterndem Material einzustellen, ist die Aufgabeschurre um eine horizontale Achse schwenkbar und/oder die Aufgabeschurre in vertikaler Richtung verstellbar und/oder die Größe der Auslauföffnung der Aufgabeschurre veränderbar.In order to set the maximum amount of material to be sintered per unit time, the feed chute can be pivoted about a horizontal axis and / or the feed chute can be adjusted in the vertical direction and / or the size of the discharge opening of the feed chute can be changed.

Eine Aufgabeschurre bietet die Möglichkeit, ohne jeden weiteren regelnden Eingriff eine einmal eingestellte Schichtdicke konstant zu halten, ohne Gefahr von Anbackungen und bei stets ebener Oberfläche.A feed chute offers the possibility to keep a set layer thickness constant without any further control intervention, without the risk of caking and with always flat surface.

Gemäß einem weiteren vorteilhaften Merkmal ist zwischen der Aufgabeschurre und der Trommelschurre eine Vorrichtung zum Vorwärmen des auf das Sinterband aufgegebenen Materials angeordnet.According to a further advantageous feature, a device for preheating the material fed onto the sintering belt is arranged between the feed chute and the drum chute.

Vorteilhafterweise wird die Vorrichtung zum Vorwärmen mit rückgeführten Verbrennungsabgasen oder erwärmter Luft gebildet. Diese Vorrichtung hat den Zweck, das zu sinternde Material, das eine Feuchte von ca. 5 bis 7 % aufweist, zu erwärmen, damit die danach aufzubringende erforderliche Wärmemenge insgesamt geringer ist. Ebenso wird die Kondensation von Wasserdampf an der unteren Schicht während des späteren Sintervorganges verringert. Gegebenenfalls kann durch die Vorrichtung zum Vorwärmen auch bereits das zu sinternde Material vorgetrocknet werden. Falls gewünscht, können auch andere Gase über diese Vorrichtung in das zu sinternde Material eingebracht werden.Advantageously, the device is formed for preheating with recirculated combustion exhaust gases or heated air. This device has the purpose to heat the material to be sintered, which has a moisture content of about 5 to 7%, so that the amount of heat to be applied thereafter is generally lower. Likewise, the condensation of water vapor on the lower layer is reduced during the later sintering process. If appropriate, the material to be sintered can also be predried by the device for preheating. If desired, other gases can be introduced via this device in the material to be sintered.

Gemäß einer weiteren Ausgestaltungsform weist die erfindungsgemäße Aufgabevorrichtung eine Sonde auf, mit deren Hilfe die Dicke der durch die Aufgabetrommel und die Trommelschurre auf die Grobkornschicht aufgegebene Schicht gemessen wird. Diese Sonde wird verwendet, um die Aufgabegeschwindigkeit der Aufgabetrommel zu steuern, falls die gemessene Schichtdicke von einem voreingestellten Sollwert abweicht.In accordance with a further embodiment, the feed device according to the invention has a probe with the aid of which the thickness of the layer applied to the coarse-grain layer by the feed drum and the drum chute is measured. This probe is used to measure the feed rate of the To control the feed drum, if the measured layer thickness deviates from a preset setpoint.

Eine separate Kontrolle der Schichthöhe der Grobkornschicht erübrigt sich, weil die Dicke dieser Schicht wegen der Aufgabe mittels Aufgabeschurre - einmal eingestellt - konstant bleibt.A separate control of the layer height of the coarse grain layer is unnecessary, because the thickness of this layer remains constant because of the task by means of feed chute - once set.

Die Erfindung bezieht sich auch auf ein Verfahren zur Aufgabe von zu sinterndem Material auf ein Sinterband nach dem Oberbegriff des Anspruchs 9. Die erfindungsgemäß gestellte Aufgabe wird bei diesem Verfahren durch die Merkmale des kennzeichnenden Teils des Anspruchs 9 gelöst.The invention also relates to a method for the task of sintering material to a sintered belt according to the preamble of claim 9. The object of the invention is achieved in this method by the features of the characterizing part of claim 9.

Die Erfindung wird nachstehend in den Zeichnungen Fig. 1 bis Fig. 2 näher erläutert.

  • Fig. 1 zeigt eine erfindungsgemäße Aufgabevorrichtung
  • Fig. 2 zeigt in der Draufsicht einen für die Aufgabevorrichtung verwendeten Schwenkförderer
The invention will be described below in the drawings Fig. 1 to Fig. 2 explained in more detail.
  • Fig. 1 shows a feed device according to the invention
  • Fig. 2 shows in plan view a pivoting conveyor used for the feeder

In Fig. 1 wird auf den Rost eines Sinterbandes 1, welches in Pfeilrichtung 2 bewegt wird, Rostbelag 3 über eine Schurre 4 aufgegeben. Der Einrichtung 5 zur Aufgabe von Rostbelag 3 ist in Bandlaufrichtung 2 die erfindungsgemäße Aufgabevorrichtung 6 nachgeordnet. In den Aufgabebehälter 7 wird über die Fördereinrichtung 8 zu sinterndes Material 9 gefüllt. Die Fördereinrichtung 8 umfasst einen Schwenkförderer 10, eine Einhausung 11, sowie ein Leitblech 12 zur exakten Positionierung des Auftreffpunktes 27 der Fördereinrichtung.In Fig. 1 is placed on the grid of a sintering belt 1, which is moved in the direction of arrow 2 , grate 3 via a chute 4 . The device 5 for the purpose of grate coating 3 is subordinated in the strip running direction 2, the feed device 6 according to the invention. Into the feed container 7 is filled via the conveyor 8 to be sintered material. 9 The conveyor 8 comprises a pivoting conveyor 10, an enclosure 11, and a guide plate 12 for the exact positioning of the impact point 27 of the conveyor.

Der Aufgabebehälter 7 weist zwei Austragsöffnungen 13,14 auf, wobei das über die erste Austragsöffnung 13 abfließende Material 9b mit einer Aufgabetrommel 15 und einer anschließenden Trommelschurre 16 auf das Sinterband 1, bzw. auf das bereits darauf befindliche Material 9a aufgegeben wird.The feed container 7 has two discharge openings 13,14, wherein the flowing via the first discharge opening 13 material is fed 9b with a feed drum 15 and a subsequent drum chute 16 onto the sintering belt 1, or on the already located thereon material 9a.

Das aus der zweiten Austragsöffnung 14 abfließende Material wird mittels der an die zweite Austragsöffnung 14 anschließenden Aufgabeschurre 17 auf das Sinterband 1 bzw. auf den bereits darauf befindlichen Rostbelag 3 aufgegeben.The effluent from the second discharge opening 14 material is given by means of the subsequent to the second discharge opening 14 Aufgabeschurre 17 on the sintering belt 1 and on the already thereon located grate 3 .

Durch die Wahl bzw. die Positionierung des Auftreffpunktes 27 der Fördereinrichtung 8 bildet sich in dem Aufgabebehälter 7 eine Böschung 18 aus. Entlang dieser Böschung 18 segregiert das zu sinternde Material 9, das in der Regel möglichst weit oben auf die Böschung 18 aufgegeben wird.By selecting or positioning the point of impingement 27 of the conveyor 8 , an embankment 18 is formed in the feed container 7 . Along this embankment 18 segregates the material to be sintered 9, which is usually abandoned as far as possible above the embankment 18 .

Die zweite Austragsöffnung 14 ist so positioniert, dass dadurch überwiegend Grobkorn, zumindest aber ein größerer Anteil an Grobkorn ausgetragen wird, als dies bei der ersten Austragsöffnung 13 der Fall ist.The second discharge opening 14 is positioned so that predominantly coarse grain, but at least a larger proportion of coarse grain is discharged, as is the case with the first discharge opening 13 .

Bei der in Fig. 1 dargestellten Aufgabeschurre 17 kommt es - ohne weiteren regelnden Eingriff - über den gesamten Chargiervorgang zu keiner Änderung der Dicke des durch sie aufgegebenen Materials. Damit die Dicke der Grobkornschicht voreingestellt werden kann, ist die Aufgabeschurre 17 um eine Achse 19 schwenkbar. Alternativ oder zusätzlich dazu kann auch die Position der Aufgabeschurre 17 in der Vertikalen verändert werden (Einstellmöglichkeit in der Vertikalen nicht dargestellt).At the in Fig. 1 shown task chute 17 it comes - without further regulatory intervention - over the entire charging process to no change in the thickness of the material abandoned by them. So that the thickness of the coarse-grained layer can be preset, the feed chute 17 is pivotable about an axis 19 . Alternatively or additionally, the position of the feed chute 17 in the vertical direction can also be changed (setting possibility in the vertical not shown).

Als weitere Einstellmöglichkeit, und zwar um den Bereich des Kornbandes, der durch die zweite Austragsöffnung 14 abfließt, zu beeinflussen, sind an der zweiten Austragsöffnung 14 Schieber 20 vorgesehen. Durch Bewegung des Schiebers 20 in Pfeilrichtung 26 kann der Querschnitt der zweiten Austragsöffnung 14 variiert werden.As a further adjustment possibility, namely by the area of the grain volume, which is discharged through the second discharge opening 14 to influence, 14 slide 20 are provided at the second discharge opening. By moving the slider 20 in the direction of arrow 26 , the cross section of the second discharge opening 14 can be varied.

Zwischen Aufgabeschurre 17 und Trommelschurre 16 ist eine Vorwärmhaube 21 angeordnet, die zum Vorwärmen der auf das Sinterband 1 aufgegebenen Grobkornfraktion dient.Between Aufgabeschurre 17 and drum chute 16 , a preheating hood 21 is arranged, which serves to preheat the discontinued on the sintering belt 1 coarse grain fraction.

Es ist weiters eine Sonde 22 vorgesehen, mittels welcher die Schichtdicke der Feinkornfraktion gemessen wird. Bei einem Abweichen von einem Sollwert wird die Arbeitsgeschwindigkeit der Aufgabetrommel entsprechend verändert. Eine geeignete Sonde 22 kann als Ultraschallsonde ausgeführt sein. Eine geeignete Sonde 22 kann auch von zumindest zwei unterschiedlich langen Fühlern gebildet werden, von denen einer stets in die Schüttung eintauchen muss. Beim Eintauchen beider oder keines der Fühler wird in die Arbeitsgeschwindigkeit der Aufgabetrommel regelnd eingegriffen. Wie bereits erläutert, erübrigt sich eine Regelung der Schichtdicke der Grobkornfraktion.There is further provided a probe 22 , by means of which the layer thickness of the fine grain fraction is measured. If there is a deviation from a setpoint, the working speed of the feed drum is changed accordingly. A suitable probe 22 may be designed as an ultrasound probe. A suitable probe 22 can also be formed by at least two sensors of different lengths, one of which always has to dive into the bed. When both or none of the probes are immersed, the working speed of the feeding drum is interfered with. As already explained, a regulation of the layer thickness of the coarse grain fraction is unnecessary.

Es ist eine weitere Sonde 23 vorgesehen, mittels welcher der Füllstand im Aufgabebehälter kontrolliert wird, wobei bei einem Abweichen von einem Sollwert in die Fördermenge des angeförderten Materials der Fördervorrichtung regelnd eingegriffen wird. Eine geeignete Sonde 23 ist bevorzugt als Ultraschallsonde ausgeführt.There is a further probe 23 is provided, by means of which the level is controlled in the feed container, which is intervened in a deviation from a desired value in the flow rate of the conveyed material of the conveyor regulating. A suitable probe 23 is preferably designed as an ultrasound probe.

Der in Fig. 2 dargestellte Schwenkförderer 10 ist um eine Drehachse 24 in der Horizontalen schwenkbar. Dadurch kann der Schwenkförderer 10 den Aufgabebehälter 7 in der gesamten Breite überstreichen und befüllen. Auf den Schwenkförderer 10 wird in der Nähe der Drehachse 24 das zu sinternde Material mittels eines Förderbandes 25 aufgegeben.The in Fig. 2 shown pivoting conveyor 10 is pivotable about an axis of rotation 24 in the horizontal. As a result, the pivoting conveyor 10 can sweep the filling container 7 in the entire width and fill. On the pivoting conveyor 10 is in near the axis of rotation 24, the material to be sintered by means of a conveyor belt 25 abandoned.

Claims (9)

  1. Feeding device (6) for a belt-type sintering machine, with a feeding container (7) for receiving the material (9) to be sintered, with a conveying device (8) for filling the feeding container (7) with material (9) to be sintered, with a feeding drum (15) and a drum chute (16) for feeding the material (9) to be sintered onto the sintering belt (1), characterized in that the feeding container (7) is provided with two discharge openings (13, 14) for the material (9a, 9b) to be sintered and the first discharge opening (13) is connected to the feeding drum (15) and the second discharge opening (14) is connected to a feeding chute (17) for feeding the material (9a) to be sintered onto the sintering belt (1), the conveying device (8) being arranged in such a way that it has a point of impingement (27) of the material (9) to be sintered which lies in the half of the feeding container (7) that is located over the first discharge opening (13), extending from the vertical center axis of the filling container (7) in the direction of movement of the sintering belt (1), and the second discharge opening (14) being arranged in the lower region of the side wall of the feeding container (7) that is opposite from the point of impingement (27).
  2. Feeding device (6) according to Claim 1, characterized in that the conveying device (8) is arranged in such a way that it has a point of impingement (27) at or near the side wall of the feeding container (7) lying in the direction of movement of the sintering belt as seen from the vertical center axis of the feeding container.
  3. Feeding device (6) according to Claim 1 or 2, characterized in that the conveying device (8) comprises a baffle plate (12) for the directed dumping of the material (9) to be sintered.
  4. Feeding device (6) according to one of Claims 1 to 3, characterized in that the conveying device (8) comprises a pivoting conveyor (10) or a pivoting chute or a transversely moving belt or a transverse conveyor.
  5. Feeding device (6) according to one of Claims 1 to 4, characterized in that the size and/or position of the second discharge opening (14) can be changed.
  6. Feeding device (6) according to one of Claims 1 to 5, characterized in that - to set the maximum amount of material to be sintered that can be fed per unit of time - the feeding chute (17) can be pivoted about a horizontal axis (19) and/or the feeding chute (17) can be adjusted in the vertical direction and/or the size of the discharge opening of the feeding chute (17) can be changed.
  7. Feeding device (6) according to one of Claims 1 to 6, characterized in that a device (21) for pre-warming the material (9a) fed onto the sintering belt (1) is arranged between the feeding chute (17) and the drum chute (16).
  8. Feeding device (6) according to one of Claims 1 to 7, characterized in that a probe (22) for controlling the feeding rate of the feeding drum (15) is provided.
  9. Method for feeding material (9) to be sintered onto a sintering belt (1), material (9) to be sintered being introduced into a feeding container (7) and fed onto the sintering belt (1) from the feeding container (7), characterized in that material (9) to be sintered is separated into coarse and fine grain in the feeding container (7) on the basis of segregation and the coarse grain is discharged via a feeding chute (17) and the fine grain is discharged via a feeding drum (15) out of the feeding container (7) and fed onto the sintering belt (1) at locations that are separate from each other and the filling of the feeding container (7) takes place by dumping material (9) to be sintered into the half of the feeding container (7) that lies over the discharge location of the fine grain, extending from the vertical center axis of the feeding container (7) in the direction of movement of the sintering belt (1), and the discharge of the coarse grain takes place in the region of the lower end of the slope (18) formed by the material (9) to be sintered.
EP05774028A 2004-08-02 2005-07-12 Charging device for a strip sintering machine Not-in-force EP1787079B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0132504A AT413759B (en) 2004-08-02 2004-08-02 TASK DEVICE FOR A BAND SURFACE MACHINE
PCT/EP2005/007528 WO2006015680A1 (en) 2004-08-02 2005-07-12 Charging device for a strip sintering machine

Publications (2)

Publication Number Publication Date
EP1787079A1 EP1787079A1 (en) 2007-05-23
EP1787079B1 true EP1787079B1 (en) 2011-10-12

Family

ID=34916832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05774028A Not-in-force EP1787079B1 (en) 2004-08-02 2005-07-12 Charging device for a strip sintering machine

Country Status (14)

Country Link
US (1) US7811086B2 (en)
EP (1) EP1787079B1 (en)
KR (1) KR101152744B1 (en)
CN (1) CN101036032B (en)
AT (2) AT413759B (en)
AU (1) AU2005270498B2 (en)
CA (1) CA2576480C (en)
EG (1) EG24650A (en)
MX (1) MX2007002182A (en)
RU (1) RU2375658C2 (en)
TW (1) TWI355363B (en)
UA (1) UA85269C2 (en)
WO (1) WO2006015680A1 (en)
ZA (1) ZA200701722B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT508648B1 (en) * 2009-08-26 2012-12-15 Siemens Vai Metals Tech Gmbh LUBRICATION FOR SINTERING MATERIAL
EP2775242A1 (en) 2013-03-04 2014-09-10 Siemens VAI Metals Technologies GmbH Feeding chute for sinter material
CN103449452B (en) * 2013-09-02 2015-05-27 无锡恒诚硅业有限公司 Feeding device for conveying white carbon black raw material into kettle
CN104019664B (en) * 2014-06-18 2016-01-20 马钢(集团)控股有限公司 A kind of for the fine device that given layer is thrown in sinter mixture and put-on method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524334A (en) * 1920-09-23 1925-01-27 Fairfield Eng Co Adjustable revolving chute
US3185635A (en) * 1961-05-10 1965-05-25 Us Smelting Refining And Minin Method for producing metallurgical coke and metal-coke from both coking and non-coking coals
AU612058B2 (en) 1988-09-13 1991-06-27 Nkk Corporation Apparatus for charging material to be sintered into a sintering machine
KR100431846B1 (en) * 1999-12-27 2004-05-20 주식회사 포스코 Apparatus for controlling the granule materials of sintering machine
JP2001227872A (en) 2000-02-17 2001-08-24 Kawasaki Steel Corp Device for feeding material into sintering machine and its method for using
JP4972758B2 (en) * 2000-03-09 2012-07-11 Ｊｆｅスチール株式会社 Raw material charging equipment for sintering machine
KR101120117B1 (en) * 2004-12-24 2012-03-23 주식회사 포스코 Device for repairing bad loaded cokes in a sintering facilities

Also Published As

Publication number Publication date
AU2005270498A1 (en) 2006-02-16
RU2375658C2 (en) 2009-12-10
ZA200701722B (en) 2008-07-30
RU2007107613A (en) 2008-09-10
UA85269C2 (en) 2009-01-12
CN101036032A (en) 2007-09-12
AT413759B (en) 2006-05-15
US7811086B2 (en) 2010-10-12
KR20070048225A (en) 2007-05-08
TW200606092A (en) 2006-02-16
CN101036032B (en) 2010-05-12
MX2007002182A (en) 2007-10-16
ATE528604T1 (en) 2011-10-15
EG24650A (en) 2010-04-06
AU2005270498B2 (en) 2011-01-20
US20080108006A1 (en) 2008-05-08
CA2576480A1 (en) 2006-02-16
ATA13252004A (en) 2005-09-15
CA2576480C (en) 2013-10-08
TWI355363B (en) 2012-01-01
WO2006015680A1 (en) 2006-02-16
KR101152744B1 (en) 2012-06-18
EP1787079A1 (en) 2007-05-23

Similar Documents

Publication Publication Date Title
EP0584579B1 (en) Arrangement and method for pressure treatment of granular material
EP3152177B1 (en) Method for expanding sand-grain-shaped raw material
EP1787079B1 (en) Charging device for a strip sintering machine
EP2470848B1 (en) Supply chute for sinter material
WO2010115619A1 (en) Charging device
DE2708032B2 (en) Continuously operating powder feed device for feeding and discharging powder into or from the coating material bed of an electrostatic fluidized bed coating device
DE102008045600B4 (en) Feeding device for sintered material
DE3875509T2 (en) DEVICE AND METHOD FOR LOADING A SINTER BAND WITH RAW MATERIAL.
EP1941066B1 (en) Method for charging feedstock
DE2149186B2 (en) Process for the production of dry bulk material by crushing and grinding
DE2814494C2 (en) Device for applying a sinter mix
DE2145353A1 (en) Method for regulating the conveyance of bulk material and device for the production of burned or sintered ore pellets
EP2965030A1 (en) Supply chute for sinter material
DE2506016A1 (en) PROCESS FOR PLACING RAW PELLETS ON A TRAVELING GRATE OF A PRE-TREATMENT OVEN
WO2011131428A1 (en) Feeding apparatus for a high-pressure roller press
DE4426146C2 (en) Method and device for distributing bulk material on a conveyor grate
JPH01102292A (en) Air permeability regulator for sintering raw material layer
DE29721768U1 (en) Pan circuit system for sintering materials
DE1483136A1 (en) Method and device for loading a conveyor, located below a funnel, of a machine for sintering, agglomerating and / or roasting bulk material
AT388443B (en) Feed arrangement for a belt-type sintering machine
WO2020239713A1 (en) Device and method for producing a nonwoven fabric
DE3719267A1 (en) FEEDING DEVICE FOR SOLIDS / LIQUID MIXTURES
DE585150C (en) Distribution device for loading ovens
EP2298708A1 (en) Method and device for loading a shaft furnace and a shaft furnace containing the device
DD230497A3 (en) DEVICE FOR LOADING SINTER TAPERS

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070202

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20081022

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS VAI METALS TECHNOLOGIES GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502005012018

Country of ref document: DE

Effective date: 20111208

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20111012

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120212

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120113

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120112

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

26N No opposition filed

Effective date: 20120713

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502005012018

Country of ref document: DE

Effective date: 20120713

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130329

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120123

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120731

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111012

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20130626

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130918

Year of fee payment: 9

Ref country code: AT

Payment date: 20130607

Year of fee payment: 9

Ref country code: NL

Payment date: 20130708

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130710

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20130726

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20130819

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050712

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502005012018

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20150201

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 528604

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140712

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140712

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150203

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502005012018

Country of ref document: DE

Effective date: 20150203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140712

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140712