EP0400309B1 - 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
- EP0400309B1 EP0400309B1 EP90106997A EP90106997A EP0400309B1 EP 0400309 B1 EP0400309 B1 EP 0400309B1 EP 90106997 A EP90106997 A EP 90106997A EP 90106997 A EP90106997 A EP 90106997A EP 0400309 B1 EP0400309 B1 EP 0400309B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- distribution
- screen
- opening
- grain sizes
- 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
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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 invention described here relates to a loading and distribution device for the controlled filling of solids of two grain classes in shaft ovens, with a conveyor system that feeds into the shaft opening, at least in terms of material, working discontinuously and with a distribution screen arranged in the shaft under the shaft opening and open in the middle, whereby 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.
- FIG. 1 of DE-C 611 115 A device of this type is described in FIG. 1 of DE-C 611 115, in which the optional distribution of the filled solids to the center or to the edge of the shaft takes place solely with the aid of a distribution screen which is open in the center, by 180 ° a horizontal axis is rotated.
- a bell arranged above the opening of the distribution screen distributes the solids during the filling in such a way that they always fall on the inward or outward sloping surface of the distribution screen.
- DE-C-801 015 describes a different type of loading and distribution device in which the optional distribution inwards or outwards is not carried out by changing the inclination of a guide surface, but by optionally opening and closing the central region of a distribution cone.
- the cone hood is swung away to the side if the centrally supplied filling flow is not to be distributed to the outside through the distribution cone, but is to reach the central area of the shaft. Since the swiveling away of the conical cover has to be done by actuation from the outside, a complicated, sealed rod guide is required as well as an additional movement of the rod into the pivoting movement implementing mechanics.
- the task of the feeding and distributing device according to the invention described below is to avoid the complex known constructions and thus to achieve an optimal distribution of the solids of different grain classes with a minimal expenditure of constructive elements.
- This object is achieved in that the distribution screen is arranged in a fixed manner and has a rotary flap which can be pivoted between a vertical and horizontal basic position above its central opening, the diameter of the rotary flap being matched to that of the screen opening.
- the invention treads a fundamentally new path compared to the device according to DE-C 611 115, in that the directional distribution of the filling flow is no longer carried out by appropriate alignment of inclined surfaces.
- a new path is also being taken compared to DE-C 801 015 in that no central inclined surface is used for the deflection to the outside.
- the rotary valve according to the invention is therefore not only much easier to manufacture than the conical cover, but also its actuating device is simpler and more reliable.
- the rotary valve essential to the invention optionally causes an inflow to the periphery, although no guide surface running there is used. Instead, a bulk cone is first formed on the transverse flap over which the incoming material is then directed outwards. After turning the rotary flap through 90 °, the filling quantity corresponding to the cone of bulk material also enters the shaft.
- the swiveling traffic cone shown in DE-C-801 015 is in itself more complex than a flat circular disk. It has a much larger weight that can be swung away.
- the pivoting movement due to a pure thrust movement of the actuating rod guided outwards requires additional kinematic means, which are not shown in this earlier patent. According to the construction shown there, the actuating rod would have to be flexible in order to be able to follow the pivoting movement.
- the loading device according to DE-C-611 115 is constructed much more complex. Although it also uses an advantageous rotary bearing for optionally different distribution, it always rotates the outer distribution screen, which is fixed with us, by 180 °. Consequently, the bulk material must be redistributed to the periphery (Fig. 1) by means of guide means arranged above it in order to reach the guide surface of the outer distribution screen. In the version according to Fig. 2, an additional distribution cone must even be swiveled. Connecting means between the inner distribution cone and the outer distribution screen are also required, which have not been shown in Fig. 2.
- the single figure shows a schematic representation of the basic arrangement of the loading device according to the invention: 1.2 is the (loaded) loading bucket with 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.
Landscapes
- 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 hier beschriebene Erfindung betrifft eine Beschickungs- und Verteilvorrichtung zum kontrollierten Einfüllen von Feststoffen zweier Kornklassen in Schachtöfen, mit einer in die Schachtöffnung beschickenden, zumindest materialmässig diskontinuierlich arbeitenden Förderanlage und mit einem im Schacht unter der Schachtöffnung angeordneten, in der Mitte offenen Verteilschirm, wobei der Abstand des Schirmaussenrandes von der inneren Schachtwand 1/10 bis 1/5 des Schachtinnendurchmessers ausmacht.The invention described here relates to a loading and distribution device for the controlled filling of solids of two grain classes in shaft ovens, with a conveyor system that feeds into the shaft opening, at least in terms of material, working discontinuously and with a distribution screen arranged in the shaft under the shaft opening and open in the middle, whereby 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.
In der Fig.1 der DE-C 611 115 ist eine Vorrichtung dieser Art beschrieben, bei der die wahlweise Verteilung der eingefüllten Feststoffe zur Mitte oder zum Rand des Schachtes allein mit Hilfe eines in der Mitte offenen Verteilschirmes erfolgt, indem dieser um 180° um eine horizontale Achse gedreht wird. Eine oberhalb der Oeffnung des Verteilschirmes angeordnete Glocke verteilt die Feststoffe beim Einfüllen so, dass diese stets auf die nach innen oder nach aussen gerichtete Schrägfläche des Verteilschirmes fallen.A device of this type is described in FIG. 1 of DE-C 611 115, in which the optional distribution of the filled solids to the center or to the edge of the shaft takes place solely with the aid of a distribution screen which is open in the center, by 180 ° a horizontal axis is rotated. A bell arranged above the opening of the distribution screen distributes the solids during the filling in such a way that they always fall on the inward or outward sloping surface of the distribution screen.
Durch die DE-C-801 015 ist eine andersartige Beschickungs- und Verteilvorrichtung beschrieben, bei der die wahlweise Verteilung nach innen oder nach aussen nicht durch entsprechendes Aendern der Schrägstellung einer Leitfläche erfolgt, sondern durch wahlweises Oeffnen und Schliessen des mittleren Bereiches eines Verteilkegels. Hierbei wird die Kegelhaube seitlich weggeschwenkt, wenn der zentral zugeführte Füllstrom nicht durch den Verteilkegel nach aussen verteilt werden soll, sondern in den zentralen Bereich des Schachtes gelangen soll. Da das Wegschwenken der Kegelhaube durch Betätigung von aussen erfolgen muss, ist eine aufwendige, abzudichtende Stangenführung erforderlich sowie zusätzlich eine die Stangenbewegung in die Schwenkbewegung umsetzende Mechanik.DE-C-801 015 describes a different type of loading and distribution device in which the optional distribution inwards or outwards is not carried out by changing the inclination of a guide surface, but by optionally opening and closing the central region of a distribution cone. Here, the cone hood is swung away to the side if the centrally supplied filling flow is not to be distributed to the outside through the distribution cone, but is to reach the central area of the shaft. Since the swiveling away of the conical cover has to be done by actuation from the outside, a complicated, sealed rod guide is required as well as an additional movement of the rod into the pivoting movement implementing mechanics.
Aufgabe der im folgenden beschriebenen erfindungsgemässen Beschickungs- und Verteilvorrichtung ist es, die aufwendigen bekannten Konstruktionen zu vermeiden und somit eine optimale Verteilung der Feststoffe verschiedener Kornklassen durch einen minimalen Aufwand an konstruktiven Elementen zu erreichen. Die Lösung dieser Aufgabe erfolgt dadurch, dass der Verteilschirm feststehend angeordnet ist und oberhalb seiner mittleren Oeffnung eine zwischen einer senkrechten und waagerechten Grundstellung verschwenkbare Drehklappe aufweist, wobei der Durchmesser der Drehklappe demjenigen der Schirmöffnung angepasst ist.The task of the feeding and distributing device according to the invention described below is to avoid the complex known constructions and thus to achieve an optimal distribution of the solids of different grain classes with a minimal expenditure of constructive elements. This object is achieved in that the distribution screen is arranged in a fixed manner and has a rotary flap which can be pivoted between a vertical and horizontal basic position above its central opening, the diameter of the rotary flap being matched to that of the screen opening.
Auf diese Weise beschreitet die Erfindung gegenüber der Vorrichtung nach der DE-C 611 115 einen grundsätzlich neuen Weg, indem die Richtungsverteilung des Füllstromes nicht mehr durch entsprechende Ausrichtung von Schrägflächen erfolgt. Aber auch gegenüber der DE-C 801 015 wird ein neuer Weg beschritten, indem für die Ablenkung nach aussen keine zentrale Schrägfläche verwendet wird. Die Drehklappe entsprechend der Erfindung ist folglich nicht nur gegenüber der Kegelhaube wesentlich einfacher herzustellen, sondern auch ihre Betätigungseinrichtung ist einfacher und zuverlässiger ausgeführt.In this way, the invention treads a fundamentally new path compared to the device according to DE-C 611 115, in that the directional distribution of the filling flow is no longer carried out by appropriate alignment of inclined surfaces. However, a new path is also being taken compared to DE-C 801 015 in that no central inclined surface is used for the deflection to the outside. The rotary valve according to the invention is therefore not only much easier to manufacture than the conical cover, but also its actuating device is simpler and more reliable.
Die erfindungswesentliche Drehklappe bewirkt wahlweise eine Zuströmung zur Peripherie hin, obwohl keine dorthin verlaufende Leitfläche verwendet wird. Stattdessen lässt man auf der quergestellten Drehklappe sich zuerst einen Schüttkegel ausbilden, über den dann das nachströmende Füllgut nach aussen geleitet wird. Nach Drehen der Drehklappe um 90° gelangt dann auch die dem Schüttkegel entsprechende Füllmenge in den Schacht.The rotary valve essential to the invention optionally causes an inflow to the periphery, although no guide surface running there is used. Instead, a bulk cone is first formed on the transverse flap over which the incoming material is then directed outwards. After turning the rotary flap through 90 °, the filling quantity corresponding to the cone of bulk material also enters the shaft.
Der in der DE-C-801 015 gezeigte wegschwenkbare Leitkegel ist für sich bereits aufwendiger als eine ebene Kreisscheibe. Er hat ein wesentlich grösseres, wegzuschwenkendes Gewicht. Die Schwenkbewegung aufgrund einer reinen Schubbewebung der nach aussen geführten Betätigungsstange erfordert zusätzliche kinematische Mittel, die in dieser älteren Patentschrift nicht gezeigt sind. Entsprechend der dort gezeigten Konstruktion müsste die Betätigungsstange biegsam sein, um der Schwenkbewegung folgen zu können.The swiveling traffic cone shown in DE-C-801 015 is in itself more complex than a flat circular disk. It has a much larger weight that can be swung away. The pivoting movement due to a pure thrust movement of the actuating rod guided outwards requires additional kinematic means, which are not shown in this earlier patent. According to the construction shown there, the actuating rod would have to be flexible in order to be able to follow the pivoting movement.
Auch die Beschickungsvorrichtung entsprechend der DE-C-611 115 ist wesentlich aufwendiger konstruiert. Sie verwendet zwar zur wahlweise unterschiedlichen Verteilung ebenfalls eine vorteilhafte Drehlagerung, jedoch wird bei ihr in jedem Fall der äussere, bei uns feststehende Verteilschirm um 180° gedreht. Folglich muss in jedem Fall das Schüttgut durch darüber angeordnete Leitmittel zur Peripherie (Abb. 1) hin vorverteilt werden, um auf die Leitfläche des äusseren Verteilschirmes zu gelangen. Bei der Ausführung nach Abb. 2 muss sogar ein zusätzlicher Verteilkegel mitgeschwenkt werden. Es sind auch Verbindungsmittel zwischen innerem Verteilkegel und äusserem Verteilschirm erforderlich, die in Abb. 2 nicht mit dargestellt worden sind.The loading device according to DE-C-611 115 is constructed much more complex. Although it also uses an advantageous rotary bearing for optionally different distribution, it always rotates the outer distribution screen, which is fixed with us, by 180 °. Consequently, the bulk material must be redistributed to the periphery (Fig. 1) by means of guide means arranged above it in order to reach the guide surface of the outer distribution screen. In the version according to Fig. 2, an additional distribution cone must even be swiveled. Connecting means between the inner distribution cone and the outer distribution screen are also required, which have not been shown in Fig. 2.
Die einzige Figur 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.The single figure shows a schematic representation of the basic arrangement of the loading device according to the invention: 1.2 is the (loaded) loading bucket with 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.
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 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 in den Kübeln, bzw. auf den Förderbändern,
- Durchmesserverhältnis von Drehklappe und Verteilschirm, und
- Chargenfolgen der Materialien verschiedener Kornklassen.
- 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.
- smaller and therefore lighter closures for the shaft openings;
- easier batch preparation and
- cheaper execution.
Claims (1)
- Feeding and distributing device for the controlled filling of solids of two size fractions into shaft furnaces, with a conveyor operating discontinuously at least from the material standpoint and feeding into the shaft opening and with a centrally open distributing screen arranged below the shaft opening in the shaft, the distance between the screen outer edge and the inner shaft wall being 1/10 to 1/5 of the shaft internal diameter, characterized in that the distributing screen (1.6) is arranged in fixed manner and is provided above its central opening with a flap (1.5) pivotable between a vertical and a horizontal normal position, the diameter of the flap (1.5) being adapted to that of the screen opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2076/89A CH678847A5 (en) | 1989-06-02 | 1989-06-02 | |
| CH2076/89 | 1989-06-02 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0400309A2 EP0400309A2 (en) | 1990-12-05 |
| EP0400309A3 EP0400309A3 (en) | 1991-04-03 |
| EP0400309B1 true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH686459A5 (en) * | 1992-03-07 | 1996-03-29 | Maerz Ofenbau | Shaft furnace for burning stuckigem, mineral contents. |
| DE4445845C2 (en) * | 1994-12-22 | 1996-10-31 | Gutehoffnungshuette Man | Dispensing system for shaft furnaces, especially blast furnaces |
| ITTO20050230A1 (en) | 2005-04-07 | 2006-10-08 | Collarini Olivero | DEPARTMENT SELECTIVE CALCARE DISTRIBUTOR FOR A REGENERATIVE OVEN AND SELECTIVE LOADING PROCEDURE FOR CALCING IN A REGENERATIVE OVEN USING THIS DEVICE. |
Family Cites Families (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 |
| LU85811A1 (en) * | 1985-03-15 | 1986-10-06 | Wurth Paul Sa | LOADING SYSTEM FOR A TANK OVEN |
| LU85810A1 (en) * | 1985-03-15 | 1986-10-06 | Wurth Paul Sa | DEVICE FOR DISTRIBUTING LOADING MATERIAL INTO A STORAGE ENCLOSURE FOR SUPPLYING A TANK OVEN |
| CA1269832A (en) * | 1985-05-07 | 1990-06-05 | Marc Solvi | Process and apparatus for charging a shaft furnace |
| LU85892A1 (en) * | 1985-05-10 | 1986-12-05 | Wurth Paul Sa | METHOD FOR CONTROLLING THE LOADING OF A TANK OVEN |
| ATE70313T1 (en) * | 1985-08-21 | 1991-12-15 | Steine & Erden Gmbh | DEVICE FOR LOADING A SHAFT FURNACE. |
-
1989
- 1989-06-02 CH CH2076/89A patent/CH678847A5/de not_active IP Right Cessation
- 1989-08-04 DE DE8909410U patent/DE8909410U1/en not_active Expired
-
1990
- 1990-04-11 EP EP90106997A patent/EP0400309B1/en not_active Expired - Lifetime
- 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
Also Published As
| Publication number | Publication date |
|---|---|
| DE59007980D1 (en) | 1995-01-26 |
| EP0400309A3 (en) | 1991-04-03 |
| EP0400309A2 (en) | 1990-12-05 |
| DE8909410U1 (en) | 1989-09-14 |
| CH678847A5 (en) | 1991-11-15 |
| ATE115635T1 (en) | 1994-12-15 |
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