EP0215135B1 - Shaft furnace charging device - Google Patents
Shaft furnace charging device Download PDFInfo
- Publication number
- EP0215135B1 EP0215135B1 EP85110485A EP85110485A EP0215135B1 EP 0215135 B1 EP0215135 B1 EP 0215135B1 EP 85110485 A EP85110485 A EP 85110485A EP 85110485 A EP85110485 A EP 85110485A EP 0215135 B1 EP0215135 B1 EP 0215135B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bulk material
- shaft
- plate
- furnace
- ring box
- 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.)
- Expired - Lifetime
Links
- 239000013590 bulk material Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 11
- 235000019738 Limestone Nutrition 0.000 claims abstract description 4
- 239000006028 limestone Substances 0.000 claims abstract description 4
- 238000009826 distribution Methods 0.000 claims abstract description 3
- 239000010459 dolomite Substances 0.000 claims abstract description 3
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 3
- 235000014380 magnesium carbonate Nutrition 0.000 claims abstract description 3
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims 1
- 238000001354 calcination Methods 0.000 abstract 1
- 238000007654 immersion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
- C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
-
- 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
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/20—Arrangements of devices for charging
-
- 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
- F27D2003/0001—Positioning the charge
- F27D2003/0006—Particulate materials
- F27D2003/0007—Circular distribution
Definitions
- the invention relates to a device for loading a shaft furnace according to the preamble of claim 1 (FR-A-1 276 964).
- the invention is therefore based on the object of providing a device of the type mentioned at the outset which makes it possible to ensure a uniform distribution of the bulk material to be input over the furnace shaft diameter.
- the object is achieved with a device according to claim 1.
- a particularly preferred embodiment of the invention provides that the plate is arranged in a preferably horizontally aligned position.
- the ring box can be driven in a controlled manner by means of an electric motor or the like.
- Another embodiment of the invention is characterized in that the immersion depth of at least one of the wipers in the bulk material located on the plate is adjustable.
- the invention also proposes, if necessary, that at least one of the guide chutes runs obliquely downwards from the plate or the ring box in the direction of the inner wall of the furnace shaft and at least one of the guide chutes runs in the direction of the remaining surface to be covered.
- the guide chutes end at a distance above the upper edge of the furnace shaft.
- Another embodiment of the invention is characterized in that the outlets of the guide chutes lie essentially in a horizontal plane.
- the wipers consist of essentially vertically arranged plates, preferably of sheet metal or the like.
- the invention also proposes, if necessary, that the wipers, viewed in the direction of rotation of the ring box, lie behind the circumferential point of the ring box behind the respective guide chute under one of the radius direction projecting angles up to a position in the bulk material that is circumferentially within the range of the respective guide chute.
- the substantially horizontally arranged circular plate whose distance can be adapted to the grain size of the entire bulk material, is provided below the gas silo outlet in the device according to the invention at an appropriately determined distance, with an appropriate dimensioning of the plate, any unwanted outflow of the bulk material from the liquid silo can be prevented .
- the wipers which are evenly distributed around the circumference of the rotating ring box, protrude into the loose material of the bulk material embankment on the plate and the number of which corresponds to the number of circular rings described above and the remaining area, take on rotation of the ring box, whose speed of rotation can be adjusted , equal amounts of material from the plate and the table formed by it and direct the respective bulk material to the respectively assigned guide chute.
- the guide chutes and the wipers are firmly connected to the ring box and rotate with it.
- the number of guide chutes and the wipers is the same, with one guide chute being assigned to one wiper.
- the number of scrapers and guide chutes is equal to the number of circular rings to be covered and the remaining surface of the bulk material surface in the furnace head, the number of circular rings in question depending on the requirement, for example four, but also more or less.
- Each guide chute is designed in such a way that its outlet sweeps over the associated ring or the remaining surface of the bulk material surface in the furnace head.
- the already homogeneously mixed bulk material 2 which is constantly offered from a top silo 1 above the shaft furnace, is distributed uniformly in the upper part of the furnace onto a surface 3 with a circular cross section.
- the circular surface 3 of the bulk material to be covered in the furnace head is divided into several circular rings 4, 5, 6, 7, each with the same cross-sectional area divided, that is to say into ring surfaces, and an inevitably resulting, centrally arranged residual surface 8 with a circular cross-section, each of the ring surfaces 4, 5, 6, 7 and the residual surface 8 each being assigned the same bulk quantities.
- a circular plate 10 is arranged horizontally at a distance below a gas silo outlet 9.
- Wipers 11, which protrude into the bulk material 2 loosely sloping on the plate 10, are fixedly mounted on a rotatable ring box 12, wherein the wipers 11 consist of vertically arranged metal plates, which in the manner shown in FIG. 2 under one of the radius direction protrude different angles into the debris 2 so that their ends projecting most towards the longitudinal central axis of the shaft furnace lie within that circumferential area of the ring box 12, via which the guide chutes 14 assigned to each of the wipers 11 lead away obliquely from the circumferential edge of the plate 10.
- the wipers 11 are evenly distributed on the circumference of the ring box 12, their number corresponding to the number of circular rings 4, 5, 6 and 7 and the remaining surface 8.
- the guide chutes 14 in turn end at their respective outlet above the surface 3 to be covered at a different distance from the longitudinal central axis of the furnace, with one of the side chutes 14 thus running out above each of the circular rings 4, 5, 6, 7 or the remaining surface 8.
- the guide chutes 14 are of course firmly connected to the ring box 12, the number of guide chutes 14 and the wipers 11 being the same.
- the wipers 11 remove the same amount of material from the plate 10 and guide the bulk material in question to the respectively assigned guide chute 14, which then passes the material to the respective circular ring 4, 5, 6, 7 or the remaining surface 8 respectively.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Blast Furnaces (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Furnace Details (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Beschicken eines Schachtofens nach dem Oberbegriff des Anspruchs 1 (FR-A-1 276 964).The invention relates to a device for loading a shaft furnace according to the preamble of claim 1 (FR-A-1 276 964).
Das Aufgeben von Schüttgut in der vorstehend beschriebenen Art in einen Schachtofen zur thermischen Behandlung von stückigem Gut, wie Kalkstein, Dolomit, Magnesit oder dergleichen, insbesondere von zu brennendem Kalkstein oder dergleichen, auf die zu belegende Oberfläche der im Ofenschacht befindlichen Gutsäule bringt insofern Probleme mit sich, als die gleichmäßige Verteilung des aus dem Gichtsilo über dem Ofen ständig angebotenen, bereits homogen gemischten Schüttgutes im Ofenoberteil über den gesamten Schachtdurchmesser infolge der unvermeidbaren Schüttgutabböschung nur schwierig zu bewerkstelligen ist. Bekannt sind für diesen Zweck bereits verhältnismäßig komplizierte Anordnungen, beispielsweise in Form von Beschickungsglocken unterschiedlichen Durchmessers, wobei es aber immer noch nicht befriedigend gelingt, die zu belegende kreisförmige Oberfläche des Schüttgutes bzw. der Gutsäule im Ofenkopf insbesondere dann in der gewünschten Weise gleichmäßig mit nachrutschendem Schüttgut zu belegen, daß die zu belegende Oberfläche in mehrere Kreisringe mit jeweils gleicher Querschnittsfläche aufgeteilt ist, also in Ringflächen und eine sich zwangsläufig ergebende, zentrisch angeordnete Restfläche mit kreisförmigem Querschnitt, denen jeweils eine gleich große Materialmenge zugeteilt werden Bei der Vorrichtung nach der FR-A-1 276 964 fällt gemäß Figur 1 das Schüttgut aus dem Gichtsiloauslauf auf die Platte und von dort aus ohne jede weitere Beeinflussung in die Leitrutschen.The placing of bulk material in the manner described above in a shaft furnace for the thermal treatment of lumpy material, such as limestone, dolomite, magnesite or the like, in particular limestone or the like to be burned, on the surface to be covered of the column of material located in the furnace shaft brings problems with this than the even distribution of the already homogeneously mixed bulk material from the top silo above the furnace in the furnace top over the entire shaft diameter is difficult to achieve due to the unavoidable bulk material embankment. For this purpose, relatively complicated arrangements are already known, for example in the form of charging bells of different diameters, but it is still unsatisfactory to uniformly cover the circular surface of the bulk material or the column of material in the furnace head in the desired manner, evenly with bulk material that slides to prove that the surface to be covered is divided into several circular rings, each with the same cross-sectional area, that is to say into ring surfaces and an inevitably resulting, centrally arranged residual area with a circular cross-section, to which an equal amount of material is allocated In the device according to FR-A-1 276 964, the bulk material falls out of the top silo outlet onto the plate and from there into the guide chutes without any further influence.
Insbesondere dann, wenn Schüttgut mit Elementen sehr unterschiedlicher Korngrößen verwendet wird, kann es auf der Platte dadurch zu Entmischungen des Schüttgutes kommen.In particular, if bulk material with elements of very different grain sizes is used, segregation of the bulk material can occur on the plate.
Der Erfindung liegt demzufolge die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die es ermöglicht, eine gleichmäßige Verteilung des einzugebenden Schüttgutes über den Ofenschachtdurchmesser zu gewährleisten.The invention is therefore based on the object of providing a device of the type mentioned at the outset which makes it possible to ensure a uniform distribution of the bulk material to be input over the furnace shaft diameter.
Erfindungsgemäß wird die gestellte Aufgabe mit einer Vorrichtung nach Anspruch 1 gelöst.According to the invention, the object is achieved with a device according to claim 1.
Eine besonders bevorzugte Ausführungsform der Erfindung sieht vor, daß die Platte in vorzugsweise horizontal ausgerichteter Lage angeordnet ist.A particularly preferred embodiment of the invention provides that the plate is arranged in a preferably horizontally aligned position.
Auch kann vorgesehen sein, daß der Ringkasten gesteuert mittels eines Elektromotors oder dergleichen, antreibbar ist.It can also be provided that the ring box can be driven in a controlled manner by means of an electric motor or the like.
Eine weitere Ausführungsform der Erfindung ist dadurch gekennzeichnet, daß die Eintauchtiefe wenigstens eines der Abstreifer in das auf der Platte befindliche Schüttgut einstellbar ist.Another embodiment of the invention is characterized in that the immersion depth of at least one of the wipers in the bulk material located on the plate is adjustable.
Die Erfindung schlägt weiterhin gegebenenfalls vor, daß wenigstens eine der Leitrutschen von der Platte bzw. dem Ringkasten aus nach schräg unten in Richtung auf die Innenwandung des Ofenschachtes und wenigstens eine der Leitrutschen in Richtung auf die restliche zu belegende Oberfläche verläuft.The invention also proposes, if necessary, that at least one of the guide chutes runs obliquely downwards from the plate or the ring box in the direction of the inner wall of the furnace shaft and at least one of the guide chutes runs in the direction of the remaining surface to be covered.
Auch kann erfindungsgemäß vorgesehen sein, daß die Leitrutschen mit Abstand oberhalb des oberen Randes des Ofenschachtes enden.It can also be provided according to the invention that the guide chutes end at a distance above the upper edge of the furnace shaft.
Eine weitere Ausführungsform der Erfindung ist dadurch gekennzeichnet, daß die Auslässe der Leitrutschen im wesentlichen in einer horizontalen Ebene liegen.Another embodiment of the invention is characterized in that the outlets of the guide chutes lie essentially in a horizontal plane.
Erfindungsgemäß kann ferner vorgesehen sein, daß die Abstreifer aus im wesentlichen vertikal angeordneten Platten, vorzugsweise aus Metallblech oder dergleichen, bestehen.According to the invention it can further be provided that the wipers consist of essentially vertically arranged plates, preferably of sheet metal or the like.
Auch schlägt die Erfindung gegebenenfalls vor, daß die Abstreifer von einer in Drehrichtung des Ringkastens gesehen hinter der jeweiligen Leitrutsche gelegenen Umfangsstelle des Ringkastens unter einem von der Radiusrichtung abweisenden Winkel bis zu einer Position in das Schüttgut vorstehen, die umfangsmäßig innerhalb des Bereiches der jeweiligen Leitrutsche liegt.The invention also proposes, if necessary, that the wipers, viewed in the direction of rotation of the ring box, lie behind the circumferential point of the ring box behind the respective guide chute under one of the radius direction projecting angles up to a position in the bulk material that is circumferentially within the range of the respective guide chute.
Dadurch, daß unterhalb des Gichtsiloauslaufes bei der erfindungsgemäßen Vorrichtung in zweckmäßig bestimmtem Abstand die im wesentlichen horizontal angeordnete kreisförmige Platte vorgesehen ist, deren Abstand der Korngröße des gesamten Schüttgutes anpaßbar ist, läßt sich bei entsprechender Bemessung der Platte jegliches ungewolltes Ausfließen des Schüttgutes aus dem Gichtsilo verhindern. Die gleichmaßig am Umfang des drehbaren Ringkastens verteilt angebrachten Abstreifer, die in das lose liegende Material der Schüttgutböschung auf der Platte hineinragen und deren Anzahl mit der Anzahl der weiter oben beschriebenen Kreisringe sowie der Restfläche übereinstimmt, nehmen bei der Rotation des Ringkastens, dessen Drehgeschwindigkeit einstellbar ist, gleich große Materialmengen von der Platte und dem durch diese gebildeten Tisch ab und leiten das jeweilige Schüttgut auf die jeweils zugeordnete Leitrutsche. Die Leitrutschen sind dabei ebenso wie die Abstreifer fest mit dem Ringkasten verbunden und rotieren mit diesem. Natürlich ist die Anzahl der Leitrutschen und der Abstreifer gleich groß, wobei also jeweils einem Abstreifer eine Leitrutsche fest zugeordnet ist. Die Anzahl der Abstreifer sowie der Leitrutschen ist gleich der Anzahl der zu belegenden Kreisringe und der Restfläche der Schüttgutoberfläche im Ofenkopf, wobei die betreffende Anzahl der Kreisringe je nach Erfordernis beispielsweise vier, aber auch mehr oder weniger betragen kann. Jede Leitrutsche ist dabei so ausgebildet, daß ihr Auslauf den ihr zugeordneten Kreisring bzw. die Restfläche der Schüttgutoberfläche im Ofenkopf überstreicht.Because the substantially horizontally arranged circular plate, whose distance can be adapted to the grain size of the entire bulk material, is provided below the gas silo outlet in the device according to the invention at an appropriately determined distance, with an appropriate dimensioning of the plate, any unwanted outflow of the bulk material from the liquid silo can be prevented . The wipers, which are evenly distributed around the circumference of the rotating ring box, protrude into the loose material of the bulk material embankment on the plate and the number of which corresponds to the number of circular rings described above and the remaining area, take on rotation of the ring box, whose speed of rotation can be adjusted , equal amounts of material from the plate and the table formed by it and direct the respective bulk material to the respectively assigned guide chute. The guide chutes and the wipers are firmly connected to the ring box and rotate with it. Of course, the number of guide chutes and the wipers is the same, with one guide chute being assigned to one wiper. The number of scrapers and guide chutes is equal to the number of circular rings to be covered and the remaining surface of the bulk material surface in the furnace head, the number of circular rings in question depending on the requirement, for example four, but also more or less. Each guide chute is designed in such a way that its outlet sweeps over the associated ring or the remaining surface of the bulk material surface in the furnace head.
Infolge der starren mechanischen Verbindung der am rotierenden Ringkasten befestigten Abstreifer mit den Leitrutschen kann Schüttgutmaterial nur dann über den Außenrand der Platte abfließen, wenn die Rotation des Ringkastens begonnen hat, so daß eine Überlagerung oder Nichtbewegung der Kreisringe beim Anfahren oder Anhalten nicht stattfinden kann. Da zwangsweise alle Abstreifer und die ihnen zugeordneten Leitrutschen zu gleicher Zeit Schüttgut fördern, werden alle Kreisringe und die Restfläche praktisch zur gleichen Zeit belegt, so daß sich keine unvorteilhafte Böschung, wie sie bei einem einzeln belegten Kreisring auftreten könnte, bilden kann. Dadurch ist jegliche unvorteilhafte Entmischung des Schüttgutmaterials im Ofen ausgeschlossen. Eine eventuell notwendige Korrektur der einzelnen Fördermengen, wie sie beispielsweise zur Erzeugung einer gemuldeten Materialoberfläche im Ofenschacht notwendig sein kann, läßt sich einfach mittels Verstellung der Eintauchtiefen der Abstreifer bewerkstelligen, ohne daß hierzu eine Bedienungsperson in den Ofenkopf einsteigen müßte.As a result of the rigid mechanical connection of the wipers attached to the rotating ring box with the guide chutes bulk material can only flow off over the outer edge of the plate when the rotation of the ring box has begun, so that the circular rings cannot overlap or move when starting or stopping. Since all wipers and the associated guide chutes forcibly convey bulk material at the same time, all circular rings and the remaining surface are practically occupied at the same time, so that no unfavorable embankment, as could occur with an individually occupied circular ring, can form. This prevents any unfavorable separation of the bulk material in the furnace. Any necessary correction of the individual flow rates, as may be necessary, for example, to produce a hollowed-out material surface in the furnace shaft, can be accomplished simply by adjusting the immersion depths of the wipers, without an operator having to enter the furnace head.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachstehenden Beschreibung, in der ein Ausführungsbeispiel anhand der Zeichnung im einzelnen erläutert ist. Dabei zeigt:
- Fig. 1
- ein Ausführungsbeispiel einer Vorrichtung nach der Erfindung im vertikalen Schnitt durch die Längsmittelachse eines Ofenschachtes; und
- Fig. 2
- das Ausführungsbeispiel von Fig. 1 in der Draufsicht, teilweise geschnitten.
- Fig. 1
- an embodiment of a device according to the invention in vertical section through the longitudinal central axis of a furnace shaft; and
- Fig. 2
- the embodiment of Fig. 1 in plan view, partially cut.
Wie die Zeichnung erkennen läßt, wird das aus einem Gichtsilo 1 oberhalb des Schachtofens ständig angebotene, bereits homogen gemischte Schüttgut 2 gleichmäßig im Ofenoberteil auf eine Oberfläche 3 mit kreisförmigem Querschnitt verteilt. Die zu belegende kreisförmige Oberfläche 3 des Schüttgutes im Ofenkopf ist in mehrere Kreisringe 4, 5, 6, 7 mit jeweils gleicher Querschnittsfläche aufgeteilt, d.h. also in Ringflächen, und eine sich zwangsläufig ergebende, zentrisch angeordnete Restfläche 8 mit kreisförmigem Querschnitt, wobei jeder der Ringflächen 4, 5, 6, 7 und der Restfläche 8 jeweils gleich große Schüttgutmengen zugeteilt werden.As can be seen in the drawing, the already homogeneously mixed bulk material 2, which is constantly offered from a top silo 1 above the shaft furnace, is distributed uniformly in the upper part of the furnace onto a
Unterhalb eines Gichtsiloauslaufes 9 ist im Abstand horizontal eine kreisförmige Platte 10 angeordnet. Abstreifer 11, die in das lose auf der Platte 10 sich abböschende Schüttgut 2 hineinragen, sind fest an einem drehbaren Ringkasten 12 montiert, wobei die Abstreifer 11 aus vertikal angeordneten Metallplatten bestehen, die in der aus Fig. 2 ersichtlichen Weise unter einem von der Radiusrichtung abweichenden Winkel in das Schuttgut 2 so hineinragen, daß ihre am weitesten in Richtung auf die Längsmittelachse des Schachtofens vorspringenden Enden innerhalb desjenigen Umfangsbereiches des Ringkastens 12 liegen, über den jedem der Abstreifer 11 zugeordnete Leitrutschen 14 vom Umfangsrand der Platte 10 nach schräg unten wegführen. Die Abstreifer 11 sind gleichmäßig am Umfang des Ringkastens 12 verteilt, wobei ihre Anzahl mit der Anzahl der Kreisringe 4, 5, 6 und 7 sowie der Restfläche 8 übereinstimmt. Die Leitrutschen 14 wiederum enden mit ihrem jeweiligen Auslaß oberhalb der zu belegenden Fläche 3 in unterschiedlichem Abstand von der Längsmittelachse des Ofens, wobei also jeweils eine der Seitrutschen 14 oberhalb jedes der Kreisringe 4, 5, 6, 7 bzw. der Restfläche 8 ausläuft. Auch die Leitrutschen 14 sind natürlich fest mit dem Ringkasten 12 verbunden, wobei die Anzahl der Leitrutschen 14 und der Abstreifer 11 gleich groß ist.A
Bei Rotation des Ringkastens 12 nehmen die Abstreifer 11 gleich große Materialmengen von der Platte 10 ab und leiten das betreffende Schüttgut auf die jeweils zugeordnete Leitrutsche 14, die das Material dann dem jeweiligen Kreisring 4, 5, 6, 7 bzw. der Restfläche 8 zuführen.When the
Claims (9)
- A device for charging a shaft furnace for burning and sintering lump material, such as limestone or dolomite or magnesite or the like, with a granular bulk material, the device having a charge bunker (1) disposed above the furnace shaft, the same being of substantially circular cross-section, the bunker (1) containing substantially homogeneously mixed bulk material (2) and having an outlet (9) for supplying the bulk material (2) to the surface (3) to be covered of the column of bulk material in the furnace shaft in a distribution controllable over shaft diameter, the device comprising: a substantially circular plate (10̸) which is disposed below and at a distance from the bunker outlet (9) and whose diameter is less than the inner diameter of the furnace shaft and greater than the diameter of the exit opening of the bunker outlet; a ring box (12) rotatable concentrically of the plate (10̸); and chutes (14) whose outlets terminals terminate at different distances from the shaft longitudinal axis, characterised in that a number of scrapers (11) which extend into the bulk material (2) piling up on the plate (10̸) are disposed on the ring box (12) and are each associated with a chute (14).
- A device according to claim 1, characterised in that the plate (10̸) is disposed preferably horizontally.
- A device according to claim 1 or 2, characterised in that the ring box (12) is drivable in controlled fashion by means of an electric motor.
- A device according to any of the previous claims, characterised in that the depth of penetration of at least one of the scrapers (11) into the bulk material (2) on the plate (10̸) is adjustable.
- A device according to any of the previous claims, characterised in that at least one of the chutes (14) extends at a downwards inclination from the plate (10̸) or ring box (12) towards the shaft inner wall and at least one of the chutes extends towards the remainder of the surface (3) to be supplied.
- A device according to any of the previous claims, characterised in that the chutes (14) terminate above the top edge of the shaft.
- A device according to any of the previous claims, characterised in that the chute outlets are disposed substantially in a horizontal plane.
- A device according to any of the previous claims, characterised in that the scrapers (12) are in the form of substantially vertical plates made preferably of metal sheet or plate or the like.
- A device according to claim 8, characterised in that the scrapers (11) project from such a place on the periphery of the ring box (12) as is disposed, seen in the direction of rotation of the ring box (12), after the associated chute (14), the scrapers projecting at an angle other than the radial direction as far as a position in the bulk material (2) which is disposed peripherywise in the zone of the associated chute (14).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP85110485A EP0215135B1 (en) | 1985-08-21 | 1985-08-21 | Shaft furnace charging device |
| AT85110485T ATE70313T1 (en) | 1985-08-21 | 1985-08-21 | DEVICE FOR LOADING A SHAFT FURNACE. |
| DE8585110485T DE3584894D1 (en) | 1985-08-21 | 1985-08-21 | DEVICE FOR LOADING A SHAFT OVEN. |
| CA000516435A CA1306606C (en) | 1985-08-21 | 1986-08-20 | Apparatus for charging a shaft furnace |
| US07/122,585 US4767322A (en) | 1985-08-21 | 1987-11-17 | Apparatus for charging a shaft furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP85110485A EP0215135B1 (en) | 1985-08-21 | 1985-08-21 | Shaft furnace charging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0215135A1 EP0215135A1 (en) | 1987-03-25 |
| EP0215135B1 true EP0215135B1 (en) | 1991-12-11 |
Family
ID=8193694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85110485A Expired - Lifetime EP0215135B1 (en) | 1985-08-21 | 1985-08-21 | Shaft furnace charging device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4767322A (en) |
| EP (1) | EP0215135B1 (en) |
| AT (1) | ATE70313T1 (en) |
| CA (1) | CA1306606C (en) |
| DE (1) | DE3584894D1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH678847A5 (en) * | 1989-06-02 | 1991-11-15 | Maerz Ofenbau | |
| JP2963622B2 (en) * | 1994-06-24 | 1999-10-18 | 花王株式会社 | Powder distribution method and distribution device |
| US6142714A (en) * | 1998-06-15 | 2000-11-07 | Montag; Roger A. | Particulate material accelerator conveyor |
| US20020076308A1 (en) * | 2001-02-15 | 2002-06-20 | Bailey Kenneth Fred | Chip diffuser |
| US6926522B2 (en) * | 2003-09-30 | 2005-08-09 | Ffe Minerals Usa Inc. | Method and apparatus for preheating particulate material |
| EP1770174A1 (en) * | 2005-09-30 | 2007-04-04 | Paul Wurth S.A. | Charging device for a shaft furnace |
| US7874570B2 (en) | 2005-11-23 | 2011-01-25 | Montag Roger A | Tow behind steerable caddy trailer |
| US20120055130A1 (en) * | 2010-09-01 | 2012-03-08 | Briggs & Stratton Corporation | Lawn mower and spreader system |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE338432C (en) * | 1921-06-18 | Spies G M B H A | Device for evenly distributing ore u. Like. From bunkers in Moellergefaesse | |
| DE485979C (en) * | 1928-05-26 | 1929-11-09 | Arno Andreas | Plate feeding device for uniform feeding of all kinds of bulk goods |
| FR1276964A (en) * | 1960-12-28 | 1961-11-24 | Rheinische Kalksteinwerke | Device for loading a vessel, in particular a shaft furnace |
| US3165304A (en) * | 1963-01-14 | 1965-01-12 | Harbison Walker Refractories | Shaft kiln |
| FR1404907A (en) * | 1964-08-11 | 1965-07-02 | Device for loading vertical furnaces | |
| US3393905A (en) * | 1966-04-04 | 1968-07-23 | Ideal Cement Company | Method and means for controlling flow in a vertical shaft kiln |
| US3490619A (en) * | 1968-09-11 | 1970-01-20 | Int Salt Co | Load leveler |
| DE1907353A1 (en) * | 1969-02-14 | 1970-09-17 | H Eberhardt Maschf | Blast furnace charging installation |
| US3591929A (en) * | 1969-07-24 | 1971-07-13 | Prerovske Strojirny Np | Apparatus for preheating pulverized material such as cement raw materials |
| US3645514A (en) * | 1970-07-02 | 1972-02-29 | Nichols Eng & Res Corp | Production of refractory materials |
| US4024985A (en) * | 1976-09-16 | 1977-05-24 | Sankyo Dengyo Co. Ltd. | Powder feeding apparatus and method |
| US4162960A (en) * | 1978-03-29 | 1979-07-31 | Union Oil Company Of California | Shale retorting process and apparatus |
| SE441865B (en) * | 1981-03-10 | 1985-11-11 | Skf Steel Eng Ab | DEVICE TO ENCOURAGE SUPPLYING PIECE MATERIAL TO A SHAK |
| JPS5936033A (en) * | 1982-08-20 | 1984-02-28 | Tetsuro Makino | Storing and stacking device for powdery granular body |
| FR2538795B1 (en) * | 1982-12-30 | 1987-01-02 | Raffinage Cie Francaise | IMPROVEMENTS IN DEVICES FOR FILLING AN ENCLOSURE WITH A SOLID IN PARTICULATE FORM |
-
1985
- 1985-08-21 DE DE8585110485T patent/DE3584894D1/en not_active Expired - Lifetime
- 1985-08-21 AT AT85110485T patent/ATE70313T1/en not_active IP Right Cessation
- 1985-08-21 EP EP85110485A patent/EP0215135B1/en not_active Expired - Lifetime
-
1986
- 1986-08-20 CA CA000516435A patent/CA1306606C/en not_active Expired - Fee Related
-
1987
- 1987-11-17 US US07/122,585 patent/US4767322A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3584894D1 (en) | 1992-01-23 |
| US4767322A (en) | 1988-08-30 |
| CA1306606C (en) | 1992-08-25 |
| ATE70313T1 (en) | 1991-12-15 |
| EP0215135A1 (en) | 1987-03-25 |
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