EP0400309A2 - Charging device for the alternate feeding and distribution of solid materials with two grain sizes - Google Patents
Charging device for the alternate feeding and distribution of solid materials with two grain sizes Download PDFInfo
- Publication number
- EP0400309A2 EP0400309A2 EP90106997A EP90106997A EP0400309A2 EP 0400309 A2 EP0400309 A2 EP 0400309A2 EP 90106997 A EP90106997 A EP 90106997A EP 90106997 A EP90106997 A EP 90106997A EP 0400309 A2 EP0400309 A2 EP 0400309A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- screen
- distribution
- loading
- rotary flap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
Definitions
- the present invention described relates to a loading device for the alternate filling and distribution of solids of two grain classes in shaft furnaces.
- Feeding devices for blast furnaces or other shaft furnaces to achieve special loading effects are known.
- the subject of EP-Al-0 196 486 is e.g. a loading device on a shaft furnace by means of which the separation should be counteracted when loading.
- the device consists of a main silo, which is tightly and rotatably mounted on the furnace and which itself carries at least two further preliminary silos. All silos contain mix internals.
- the material to be loaded is introduced from the main silo via a rotating distribution device that protrudes into the shaft furnace.
- a concentric feed pipe for the load is also described in the main silo. The diameter of this feed pipe corresponds at least to the diameter of the shaft opening. This arrangement is also intended to prevent feed segregation.
- EP-Al-0 215 135 likewise describes a device for loading a shaft furnace by means of which, among other things, segregation is to be avoided.
- the above-mentioned device for loading granular bulk material has a top silo arranged above the furnace shaft and a top silo outlet for loading the bulk material.
- An essentially circular plate arranged below the gas silo outlet shows a diameter which is smaller than the inner diameter of the furnace shaft and larger than the diameter of the outlet opening of the gas silo outlet.
- a number of scrapers protruding into the bulk material that is sloping on the plate are attached to the rotatable ring box, which is arranged concentrically to the plate. to which guide slides ending with their outlet at different distances from the longitudinal central axis of the furnace shaft are assigned.
- the feeding device for alternately filling and distributing solids of two grain classes in shaft furnaces is characterized by - A conveyor system that feeds into the shaft opening and works discontinuously, at least in terms of material, and through a distribution screen provided in the shaft under the centrally arranged shaft opening with a centrally located rotary flap to be operated from the outside, wherein the diameter of the rotary flap is matched to that of the shaft opening and the inner diameter of the distribution screen and the distance of the outer edge of the screen from the inner shaft wall is 1/10 to 1/5 of the inner diameter of the shaft.
- the loading device mentioned can further be characterized in that the shaft furnace, the shaft opening for loading, the rotary flap above the distribution screen and the screen itself have a round cross section; the distance between the outer edge of the screen and the inner wall of the shaft is preferably 15 ⁇ 1.5% of the inner diameter of the shaft.
- the shaft opening has a guide cylinder 2.3 with an end ring 2.4, and the rotary flap 2.5 to the distribution screen 2.6 is arranged above and has the same a diameter adapted to the central opening in the screen.
- the method according to the invention for alternately feeding and distributing solids of two grain classes in shaft furnaces using the loading device mentioned is characterized by the following steps: - At least material discontinuous loading of the shaft furnace with solids of two grain sizes and - setting the rotary flap according to the loading phase, whereby the distribution of the material can be controlled centrally or peripherally depending on the grain class.
- FIG. 1 shows a schematic representation of the basic arrangement of the loading device according to the invention: 1.2 is the (loaded) loading bucket with a pull-out bucket bottom 1.3. 1.4 is the shaft opening (shown without lock). The distribution screen 1.6 with the rotary flap 1.5 open in this figure is located centrally below it.
- FIG. 2 shows a preferred embodiment of the invention, also schematically: the loading, which can take place, for example, by means of baskets, buckets or else belts, tippers, is not shown here.
- 2.2 is a vertically displaceable closure part for closing the shaft opening.
- a Guide cylinder 2.3 provided with end ring 2.4.
- the rotary flap 2.5 is arranged above the distribution screen 2.6.
- the distribution types can be influenced by - proportions of the materials of the different grain classes in the buckets or on the conveyor belts, - Diameter ratio of rotary flap and distribution screen, and - Batch sequences of materials of different grain classes.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Combined Means For Separation Of Solids (AREA)
- Basic Packing Technique (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
Die vorliegend beschriebene Erfindung betrifft eine Beschickungsvorrichtung zur wechselweisen Einfüllung und Verteilung von Feststoffen zweier Kornklassen in Schachtöfen.The present invention described relates to a loading device for the alternate filling and distribution of solids of two grain classes in shaft furnaces.
Wenn man beim Betrieb eines Schachtofens hinsichtlich Beschickung an die Grenzen der Möglichkeiten des Einsatzes von Schachtöfen geht, indem man z.B. sehr kleinen Stein chargiert, ergeben sich Probleme mit der geforderten gleichmässigen Durchströmung, weil die Schüttung mittels üblicher Beschickungsvorrichtungen zu Randgängigkeit führt. Ganz allgemein wäre es in besonderen Fällen von Vorteil, wenn in runden Schachtöfen die radiale Verteilung der Kornfraktionen gesteuert beeinflusst werden könnte.If one goes to the limits of the possibilities of using shaft furnaces when operating a shaft furnace, e.g. by Batched very small stone, problems arise with the required uniform flow, because the filling leads to edge movement by means of conventional loading devices. In general, it would be particularly advantageous in special cases if the radial distribution of the grain fractions could be influenced in a controlled manner in round shaft furnaces.
Ferner ergeben sich konstruktive Probleme bei derartigen Beschikkungsvorrichtungen, da dabei Schachtverschlüsse grosser Dimensionen luftdicht verschlossen werden müssen (aus statischen Gründen werden die Verschlussdeckel sehr schwer und sind nur langsam zu betätigen).Furthermore, there are constructive problems with such loading devices, since shaft closures of large dimensions have to be sealed airtight (for structural reasons, the closure covers become very heavy and can only be operated slowly).
Beschickungsvorrichtungen für Hochöfen oder andere Schachtöfen zur Erreichung spezieller Effekte bei der Beschickung sind bekannt.Feeding devices for blast furnaces or other shaft furnaces to achieve special loading effects are known.
Insbesondere sind solche Vorrichtungen zur Verminderung von Entmischungserscheinungen beim praktisch immer fest und kornförmig vorliegenden Beschickungsgut auch aus der Patentliteratur bekannt.In particular, such devices for reducing segregation phenomena in the case of feed material which is practically always solid and granular are also known from the patent literature.
Gegenstand der EP-Al-0 196 486 ist z.B. eine Beschickungsvorrichtung auf einem Schachtofen mittels welcher der Entmischung beim Beschicken entgegengewirkt werden soll. Die Vorrichtung besteht aus einem auf dem Ofen dicht und drehbar aufgesetzten Hauptsilo, welches selbst mindestens zwei weitere Vorsilos trägt. Alle Silos enthalten Mischungseinbauten. Das Beschickungsgut wird aus dem Hauptsilo über eine drehbare, in den Schachtofen hereinragende Verteilvorrichtung eingeführt. In der dazugehörigen EP-Al-0 196 487 wird zusätzlich - im Hauptsilo - ein konzentrisches Zuführrohr für das Beschickungsgut beschrieben. Der Durchmesser dieses Zuführrohrs entspricht mindestens dem Durchmesser der Schachtöffnung. Auch diese Anordnung ist gedacht zur Verhinderung von Beschickungsentmischungen.The subject of EP-Al-0 196 486 is e.g. a loading device on a shaft furnace by means of which the separation should be counteracted when loading. The device consists of a main silo, which is tightly and rotatably mounted on the furnace and which itself carries at least two further preliminary silos. All silos contain mix internals. The material to be loaded is introduced from the main silo via a rotating distribution device that protrudes into the shaft furnace. In the associated EP-Al-0 196 487, a concentric feed pipe for the load is also described in the main silo. The diameter of this feed pipe corresponds at least to the diameter of the shaft opening. This arrangement is also intended to prevent feed segregation.
In den beiden EP-Al-0 200 996 und 0 204 935 werden, zwecks Beschickung gewichtsmässig vorgegebener Güter bei minimaler Entmischung, permanent gewogene Haupt- und Vorsilos sowie geregelte Siloverschlüsse vorgeschlagen.In the two EP-Al-0 200 996 and 0 204 935, for the purpose of loading weight-specified goods with minimal segregation, permanently weighed main and preliminary silos and regulated silo closures are proposed.
Die EP-Al-0 215 135 schliesslich beschreibt ebenfalls eine Vorrichtung zum Beschicken eines Schachtofens, mittels der u.a. eine Entmischung vermieden werden soll. Die genannte Vorrichtung zum Beschicken mit körnigem Schüttgut weist einen oberhalb des Ofenschachtes angeordneten Gichtsilo und einen Gichtsiloauslauf zum Aufgeben des Schüttgutes auf. Eine unterhalb des Gichtsiloauslaufes angeordnete, im wesentlichen kreisförmige Platte zeigt einen Durchmesser, der kleiner ist als der Innendurchmesser des Ofenschachtes und grösser als der Durchmesser der Auslassöffnung des Gichtsiloauslaufes. Am konzentrisch zu der Platte angeordneten, drehbaren Ringkasten sind eine Anzahl von in das auf der Platte sich abböschende Schüttgut hineinragenden Abstreifern angebracht, denen mit ihrem Auslass in unterschiedlichem Abstand von der Längsmittelachse des Ofenschachtes endende Leitrutschen zugeordnet sind.Finally, EP-Al-0 215 135 likewise describes a device for loading a shaft furnace by means of which, among other things, segregation is to be avoided. The above-mentioned device for loading granular bulk material has a top silo arranged above the furnace shaft and a top silo outlet for loading the bulk material. An essentially circular plate arranged below the gas silo outlet shows a diameter which is smaller than the inner diameter of the furnace shaft and larger than the diameter of the outlet opening of the gas silo outlet. A number of scrapers protruding into the bulk material that is sloping on the plate are attached to the rotatable ring box, which is arranged concentrically to the plate. to which guide slides ending with their outlet at different distances from the longitudinal central axis of the furnace shaft are assigned.
Allen beschriebenen Vorrichtungen gemeinsam sind eher aufwendige Spezialkonstruktionen. Ebenso sind die Anlagen, primär wegen der relativ langsamen Beschickung, gasdicht aufgebaut.Common to all the devices described are rather complex special constructions. The plants are also gas-tight, primarily because of the relatively slow loading.
Die erfindungsgemässe Beschickungsvorrichtung zur wechselweisen Einfüllung und Verteilung von Feststoffen zweier Kornklassen in Schachtöfen ist gekennzeichnet durch
- eine in die Schachtöffnung beschickende, zumindest materialmässig diskontinuierlich arbeitende Förderanlage und durch
- einen im Schacht unter der zentral angeordneten Schachtöffnung vorgesehenen Verteilschirm mit von aussen zu betätigender, mittig angeordneter Drehklappe,
wobei der Durchmesser der Drehklappe demjenigen der Schachtöffnung und dem Innendurchmesser des Verteilschirms angepasst ist und wobei der Abstand des Schirm-Aussenrandes von der inneren Schachtwand 1/10 bis 1/5 des Schachtinnendurchmessers ausmacht.The feeding device according to the invention for alternately filling and distributing solids of two grain classes in shaft furnaces is characterized by
- A conveyor system that feeds into the shaft opening and works discontinuously, at least in terms of material, and through
a distribution screen provided in the shaft under the centrally arranged shaft opening with a centrally located rotary flap to be operated from the outside,
wherein the diameter of the rotary flap is matched to that of the shaft opening and the inner diameter of the distribution screen and the distance of the outer edge of the screen from the inner shaft wall is 1/10 to 1/5 of the inner diameter of the shaft.
Die genannte Beschickungsvorrichtung kann weiter dadurch gekennzeichnet sein, dass der Schachtofen, die Schachtöffnung zur Beschickung, die Drehklappe über dem Verteilschirm sowie der Schirm selbst einen runden Querschnitt aufweisen; bevorzugterweise macht der Abstand des Schirmaussenrandes von der inneren Schachtwand 15 ± 1,5 % des Schachtinnendurchmessers aus.The loading device mentioned can further be characterized in that the shaft furnace, the shaft opening for loading, the rotary flap above the distribution screen and the screen itself have a round cross section; the distance between the outer edge of the screen and the inner wall of the shaft is preferably 15 ± 1.5% of the inner diameter of the shaft.
Bei einer speziellen Ausführungsform der oben spezifizierten Beschickungsvorrichtung weist die Schachtöffnung einen Führungszylinder 2.3 mit Abschlussring 2.4 auf,und die Drehklappe 2.5 zum Verteilschirm 2.6 ist oberhalb desselben angeordnet und weist einen der zentralen Oeffnung im Schirm angepassten Durchmesser auf.In a special embodiment of the loading device specified above, the shaft opening has a guide cylinder 2.3 with an end ring 2.4, and the rotary flap 2.5 to the distribution screen 2.6 is arranged above and has the same a diameter adapted to the central opening in the screen.
Das erfindungsgemässe Verfahren zur wechselweisen Beschickung und Verteilung von Feststoffen zweier Kornklassen in Schachtöfen unter Verwendung der genannten Beschickungsvorrichtung ist gekennzeichnet durch die folgenden Schritte:
- zumindest materialmässig diskontinuierliches Beschicken des Schachtofens mit Feststoffen zweier Kornklassen und
- der Beschickungsphase entsprechendes Stellen der Drehklappe,
wodurch die Verteilung des Materials je nach Kornklasse zentral oder peripher gesteuert werden kann.The method according to the invention for alternately feeding and distributing solids of two grain classes in shaft furnaces using the loading device mentioned is characterized by the following steps:
- At least material discontinuous loading of the shaft furnace with solids of two grain sizes and
- setting the rotary flap according to the loading phase,
whereby the distribution of the material can be controlled centrally or peripherally depending on the grain class.
Die erfindungsgemässen Vorrichtungen und Verfahren - welche sich übrigens hervorragend zur Automatisierung eignen - werden nun, anhand der Ausführungsformen gemäss den beiliegenden Figuren 1 und 2, in welchen die Vorrichtung schematisch und auf das Wesentliche eingeschränkt dargestellt ist, näher erläutert.The devices and methods according to the invention - which, incidentally, are outstandingly suitable for automation - will now be explained in more detail with reference to the embodiments according to the attached FIGS. 1 and 2, in which the device is shown schematically and restricted to the essentials.
Die Figur 1 zeigt in schematischer Darstellung die Grundanordnung der erfindungsgemässen Beschickungsvorrichtung: 1.2 ist der (beladene) Beschickungskübel mit ausziehbarem Kübelboden 1.3. 1.4 ist die (ohne Verschluss dargestellte) Schachtöffnung. Zentral unter derselben befindet sich der Verteilschirm 1.6 mit der in dieser Figur geöffneten Drehklappe 1.5.FIG. 1 shows a schematic representation of the basic arrangement of the loading device according to the invention: 1.2 is the (loaded) loading bucket with a pull-out bucket bottom 1.3. 1.4 is the shaft opening (shown without lock). The distribution screen 1.6 with the rotary flap 1.5 open in this figure is located centrally below it.
In Figur 2 ist eine bevorzugte Ausführungsform der Erfindung - ebenfalls schematisch - dargestellt: die Beschickung, die z.B. mittels Körben, Kübeln oder auch Bändern, Kippwerken u.a. geschehen kann, ist hier nicht dargestellt. 2.2 ist ein vertikal verschiebbarer Verschlussteil zum Verschliessen der Schachtöffnung. Im Schachtinnern, unterhalb des Verschlussteiles, ist ein Führungszylinder 2.3 mit Abschlussring 2.4 vorgesehen. Die Drehklappe 2.5 ist oberhalb des Verteilschirmes 2.6 angeordnet.FIG. 2 shows a preferred embodiment of the invention, also schematically: the loading, which can take place, for example, by means of baskets, buckets or else belts, tippers, is not shown here. 2.2 is a vertically displaceable closure part for closing the shaft opening. In the inside of the shaft, below the locking part, is a Guide cylinder 2.3 provided with end ring 2.4. The rotary flap 2.5 is arranged above the distribution screen 2.6.
Durch das dem speziellen Beschickungsproblem angepasste Fahren der erfindungsgemässen Vorrichtung können, mit minimalem Aufwand an kunstruktiven Elementen oder an Mess- und Regelgeräten, optimale Verteilungen der beiden Feststoffe verschiedener Kornklassen erreicht werden.By driving the device according to the invention, which is adapted to the special loading problem, optimal distributions of the two solids of different grain classes can be achieved with minimal expenditure on structural elements or on measuring and control devices.
Die Verteilungsarten können dabei beeinflusst werden durch
- Anteile der Materialien der verschiedenne Kornklassen i8n den Kübeln, bzw. auf den Förderbändern,
- Durchmesserverhältnis von Drehklappe und Verteilschirm, und
- Chargenfolgen der Materialien verschiedener Kornklassen.The distribution types can be influenced by
- proportions of the materials of the different grain classes in the buckets or on the conveyor belts,
- Diameter ratio of rotary flap and distribution screen, and
- Batch sequences of materials of different grain classes.
Die Kombination der Merkmale der erfindungsgemässen Beschickungsvorrichtung führt zu auch für den Fachmann nicht ohne weiteres voraussehbaren Vorteilen:
- kleinere und somit leichtere Verschlüsse für die Schachtöffnungen;
- einfachere Chargenvorbereitungen und
- kostengünstigere Ausführung.The combination of the features of the loading device according to the invention leads to advantages which are not readily foreseeable even by the person skilled in the art:
- smaller and therefore lighter closures for the shaft openings;
- easier batch preparation and
- less expensive execution.
Claims (5)
- eine in die Schachtöffnung beschickende, zumindest materialmässig diskontinuierlich arbeitende Förderanlage und durch
- einen im Schacht unter der zentral angeordneten Schachtöffnung vorgesehenen Verteilschirm mit von aussen zu betätigender, mittig angeordneter Drehklappe,
wobei der Durchmesser der Drehklappe demjenigen der Schachtöffnung und dem Innendurchmesser des Verteilschirms angepasst ist und wobei der Abstand des Schirm-Aussenrandes von der inneren Schachtwand 1/10 bis 1/5 des Schachtinnendurchmessers ausmacht. 1. Loading device for alternate filling and distribution of solids of two grain classes in shaft furnaces, characterized by
- A conveyor system that feeds into the shaft opening and works discontinuously, at least in terms of material, and through
a distribution screen provided in the shaft under the centrally arranged shaft opening with a centrally located rotary flap to be operated from the outside,
wherein the diameter of the rotary flap is matched to that of the shaft opening and the inner diameter of the distribution screen and the distance of the outer edge of the screen from the inner shaft wall is 1/10 to 1/5 of the inner diameter of the shaft.
- zumindest materialmässig diskontinuierliches Beschicken des Schachtofens mit Feststoffen zweier Kornklassen und
- der Beschickungsphase entsprechendes Stellen der Drehklappe im Verteilschirm,
wodurch die Verteilung des Materials je nach Kornklasse zentral oder peripher gesteuert wird. 5. A method for alternately feeding and distributing solids of two grain classes in shaft furnaces using the loading device according to one of claims 1 to 4, characterized by the following steps:
- At least material discontinuous loading of the shaft furnace with solids of two grain sizes and
- placing the rotary flap in the distribution screen according to the loading phase,
whereby the distribution of the material is controlled centrally or peripherally depending on the grain class.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2076/89 | 1989-06-02 | ||
| CH2076/89A CH678847A5 (en) | 1989-06-02 | 1989-06-02 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0400309A2 true EP0400309A2 (en) | 1990-12-05 |
| EP0400309A3 EP0400309A3 (en) | 1991-04-03 |
| EP0400309B1 EP0400309B1 (en) | 1994-12-14 |
Family
ID=4225345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90106997A Expired - Lifetime EP0400309B1 (en) | 1989-06-02 | 1990-04-11 | Charging device for the alternate feeding and distribution of solid materials with two grain sizes |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0400309B1 (en) |
| AT (1) | ATE115635T1 (en) |
| CH (1) | CH678847A5 (en) |
| DE (2) | DE8909410U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0560715A1 (en) * | 1992-03-07 | 1993-09-15 | Maerz Ofenbau AG | Shaft furnace for burning of lumpy mineral material |
| DE4445845A1 (en) * | 1994-12-22 | 1996-06-27 | Gutehoffnungshuette Man | Dispensing system for shaft ovens |
| US8360709B2 (en) | 2005-04-07 | 2013-01-29 | Eugen Dan Cristea | Device for selectively dispensing limestone for a regenerating oven and process for selectively loading limestone in a regenerating oven using such device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE238110C (en) * | ||||
| DE611115C (en) * | 1933-02-09 | 1935-03-22 | Hoesch Koeln Neuessen Akt Ges | Distributor for the loading material of shaft ovens, generators, shaft-like devices and containers |
| DE749557C (en) * | 1940-05-05 | 1944-11-25 | Loading device for blast furnaces | |
| DE801015C (en) * | 1948-10-02 | 1950-12-18 | Sueddeutsche Kalkstickstoff | Loading device, especially for shaft ovens |
| EP0196486A1 (en) * | 1985-03-15 | 1986-10-08 | Paul Wurth S.A. | Charging apparatus for a shaft furnace |
| EP0196487A1 (en) * | 1985-03-15 | 1986-10-08 | Paul Wurth S.A. | Apparatus for distributing the charging materials in the storage hopper of a shaft furnace |
| EP0200996A1 (en) * | 1985-05-07 | 1986-11-12 | Paul Wurth S.A. | Method for controlling the charging installation of a shaft furnace and charging installation using this method |
| EP0204935A1 (en) * | 1985-05-10 | 1986-12-17 | Paul Wurth S.A. | Method for controlling the charging of a shaft furnace |
| EP0215135A1 (en) * | 1985-08-21 | 1987-03-25 | Wärmestelle Steine und Erden GmbH | Shaft furnace charging device |
-
1989
- 1989-06-02 CH CH2076/89A patent/CH678847A5/de not_active IP Right Cessation
- 1989-08-04 DE DE8909410U patent/DE8909410U1/de not_active Expired
-
1990
- 1990-04-11 AT AT90106997T patent/ATE115635T1/en not_active IP Right Cessation
- 1990-04-11 DE DE59007980T patent/DE59007980D1/en not_active Expired - Lifetime
- 1990-04-11 EP EP90106997A patent/EP0400309B1/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE238110C (en) * | ||||
| DE611115C (en) * | 1933-02-09 | 1935-03-22 | Hoesch Koeln Neuessen Akt Ges | Distributor for the loading material of shaft ovens, generators, shaft-like devices and containers |
| DE749557C (en) * | 1940-05-05 | 1944-11-25 | Loading device for blast furnaces | |
| DE801015C (en) * | 1948-10-02 | 1950-12-18 | Sueddeutsche Kalkstickstoff | Loading device, especially for shaft ovens |
| EP0196486A1 (en) * | 1985-03-15 | 1986-10-08 | Paul Wurth S.A. | Charging apparatus for a shaft furnace |
| EP0196487A1 (en) * | 1985-03-15 | 1986-10-08 | Paul Wurth S.A. | Apparatus for distributing the charging materials in the storage hopper of a shaft furnace |
| EP0200996A1 (en) * | 1985-05-07 | 1986-11-12 | Paul Wurth S.A. | Method for controlling the charging installation of a shaft furnace and charging installation using this method |
| EP0204935A1 (en) * | 1985-05-10 | 1986-12-17 | Paul Wurth S.A. | Method for controlling the charging of a shaft furnace |
| EP0215135A1 (en) * | 1985-08-21 | 1987-03-25 | Wärmestelle Steine und Erden GmbH | Shaft furnace charging device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0560715A1 (en) * | 1992-03-07 | 1993-09-15 | Maerz Ofenbau AG | Shaft furnace for burning of lumpy mineral material |
| DE4445845A1 (en) * | 1994-12-22 | 1996-06-27 | Gutehoffnungshuette Man | Dispensing system for shaft ovens |
| US8360709B2 (en) | 2005-04-07 | 2013-01-29 | Eugen Dan Cristea | Device for selectively dispensing limestone for a regenerating oven and process for selectively loading limestone in a regenerating oven using such device |
| KR101333954B1 (en) | 2005-04-07 | 2013-11-27 | 올리비에로 콜라리니 | Device for selectively dispensing limestone for a regenerating oven and process for selectively loading limestone in a regenerating oven using such device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0400309A3 (en) | 1991-04-03 |
| ATE115635T1 (en) | 1994-12-15 |
| EP0400309B1 (en) | 1994-12-14 |
| DE8909410U1 (en) | 1989-09-14 |
| DE59007980D1 (en) | 1995-01-26 |
| CH678847A5 (en) | 1991-11-15 |
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