EP1687577B1 - Charging device, especially charging stock preheater - Google Patents
Charging device, especially charging stock preheater Download PDFInfo
- Publication number
- EP1687577B1 EP1687577B1 EP04803263A EP04803263A EP1687577B1 EP 1687577 B1 EP1687577 B1 EP 1687577B1 EP 04803263 A EP04803263 A EP 04803263A EP 04803263 A EP04803263 A EP 04803263A EP 1687577 B1 EP1687577 B1 EP 1687577B1
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- EP
- European Patent Office
- Prior art keywords
- charging
- shaft
- charging device
- opening
- pusher
- 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.)
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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
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
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- 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
- F27D3/06—Charging or discharging machines on travelling carriages
-
- 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
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/18—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
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
- F27D13/002—Preheating scrap
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- 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
-
- 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
- F27D3/04—Ram or pusher apparatus
-
- 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
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/18—Arrangements of devices for charging
- F27B3/183—Charging of arc furnaces vertically through the roof, e.g. in three points
- F27B3/186—Charging in a vertical chamber adjacent to the melting chamber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S266/00—Metallurgical apparatus
- Y10S266/901—Scrap metal preheating or melting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Charging Or Discharging (AREA)
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Chargiervorrichtung zum Chargieren von Chargiergut in ein Schmelzgefäß, enthaltend einen Schacht, mit in einer Rahmenkonstruktion gehaltenen Schachtwänden, einem unterem Schachtboden, einer oberen Eintrittsöffnung für Chargiergut, einer Austrittsöffnung für Chargiergut in einer Seitenwand im unteren Bereich des Schachtes, einen Schieber, mit einer Oberseite, einer Unterseite, einer quer zur Verschieberichtung verlaufenden Stirnseite und zwei parallel zur Verschieberichtung verlaufenden Seitenflächen, der mit seiner Unterseite auf der Oberseite des genannten Schachtbodens aufliegend zwischen einer, den Schachtboden freigebenden, zurückgezogenen, ersten Position und einer in Richtung der genannten Austrittsöffnung vorgeschobenen, zweiten Position, mittels einer ersten Betätigungsvorrichtung zum schubweisen Transportieren von im Schacht befindlichen Chargiergut zur und aus der genannten Austrittsöffnung verschiebbar ist. Insbesondere bezieht sich die Erfindung auf eine als Chargiergutvorwärmer ausgebildete Chargiervorrichtung der genannten Art, bei der das zu chargierende Material durch hindurchströmende Heizgase, insbesondere heiße Abgase aus dem zu chargierenden Schmelzofen, vorerhitzt wird.The invention relates to a charging device for charging batch material into a melting vessel, comprising a shaft, with shaft walls held in a frame construction, a lower shaft bottom, an upper inlet opening for charging material, a discharge opening for charging material in a side wall in the lower region of the shaft, a slide, with an upper side, a lower side, an end face extending transversely to the direction of displacement, and two side surfaces running parallel to the direction of displacement, resting with its underside on the upper side of said shaft bottom between a retracted, first position releasing the shaft bottom and an exit opening in the direction of said shaft bottom advanced, second position, by means of a first actuating device for batchwise transport of charging material located in the shaft to and from said outlet opening is displaceable. In particular, the invention relates to a Chargiergutvorwärmer trained charging device of the type mentioned, in which the material to be charged by preheating by flowing hot gases, especially hot exhaust gases from the furnace to be charged, is preheated.
Eine als Chargiergutvorwärmer ausgebildete Chargiervorrichtung dieser Art ist beispielsweise durch die
Bei solchen Chargiervorrichtungen entstehen Probleme, wenn Chargiergut stark schwankender Größe, wie in Form von Spänen, Eisenbahnschienen, Motorblöcken, etc. beim Chargieren von Stahlschrott, ohne vorherige Sortierung im Chargiergutvorwärmer erhitzt und dann schubweise zur Austrittsöffnung gefördert und in ein Schmelzgefäß chargiert werden sollen. Es kommt bei dem mittels eines Linearantriebs starrer Führung hin und her bewegten Schieber leicht zu Verklemmungen mit kleineren Schrottteilchen. Außerdem werden beim Vorschieben des Schiebers aus der zurückgezogenen, den Schachtboden freigebenden Position in Richtung der Austrittsöffnung, insbesondere wenn der Schieber nicht zu flach ausgebildet ist, sperrige Chargiergutteile gegen die obere Kante der Austrittsöffnung des Schachtes gedrückt, die dann den Transportvorgang stören. Die Störanfälligkeit beim Materialtransport wird zwar bei dem bekannten Chargiergutvorwärmer dadurch etwas vermindert, dass in zwei Ebenen Sperrorgane vorgesehen sind, durch die die Chargiergutsäule in kleinere Mengen unterteilt ausgetragen werden kann. Solche Sperrorgane sind aber aufwendig und außerdem gegenüber einer Stossbeanspruchung beim Einbringen von Schwerschrott in den Chargiergutvorwärmer anfällig.In such Chargiervorrichtungen problems arise when charging material strongly fluctuating size, such as in the form of chips, railroad tracks, engine blocks, etc. when charging steel scrap to be heated without prior sorting in Chargiergutvorwärmer and then fed in batches to the outlet and charged into a melting vessel. It comes with the means of a linear drive rigid guide back and forth moving slider easily jamming with smaller scrap particles. In addition, bulky Chargiergutteile be pressed against the upper edge of the outlet opening of the shaft, which then interfere with the transport process when advancing the slide from the retracted, the shaft bottom releasing position in the direction of the outlet opening, especially if the slide is not formed too flat. The susceptibility to material transport is indeed somewhat reduced in the known Chargiergutvorwärmer that blocking elements are provided in two levels, discharged by the Chargiergutsäule divided into smaller quantities can be. However, such blocking elements are expensive and also prone to a shock load when introducing heavy scrap into the charging material preheater.
Aufgabe der Erfindung ist es, eine Chargiervorrichtung der obengenannten Art so auszugestalten, dass Chargiergut unterschiedlichster Größe, wie Schwer- und Leichtschrott, mittels des Schiebers unter Vermeidung der obengenannten Probleme, also ohne Störungen und Blockierungen, zur Austrittsöffnung und aus dieser heraus transportiert werden kann. Insbesondere soll dies auch bei einer als Chargiergutvorwärmer ausgebildeten Chargiervorrichtung gewährleistet seinThe object of the invention is to provide a charging device of the abovementioned type in such a way that charging material of the most varied sizes, such as heavy and light scrap, can be transported to and from the outlet opening by means of the slide while avoiding the abovementioned problems, that is to say without disturbances and blockages. In particular, this should also be ensured in the case of a charging device designed as a charging material preheater
Die Erfindung ist durch die Merkmale des Anspruches 1 gekennzeichnet. Vorteilhafte Ausgestaltungen der Erfindung sind den Unteransprüchen zu entnehmen.The invention is characterized by the features of claim 1. Advantageous embodiments of the invention can be found in the dependent claims.
Bei der erfindungsgemäßen Chargiervorrichtung sind die Seitenflächen des im Wesentlichen quaderförmigen Schiebers von der Oberseite zur Unterseite des Schiebers konvergierend ausgebildet und es ist die Betätigungsvorrichtung für diesen Schieber in einer Rahmenkonstruktion um eine horizontale Achse schwenkbar gelagert. Dadurch wird es beim Vorschieben des Schiebers aus der zurückgezogen Position in Richtung der Austrittsöffnung diesem ermöglicht, im Falle einer Gefahr eines Festklemmens an den Seitenflächen, nach oben auszuweichen, da ein etwaiges Hindernis im Spalt zwischen den Seitenflächen und den angrenzenden Wänden den Schieber über die Schrägfläche nach oben drückt.In the charging device according to the invention, the side surfaces of the substantially parallelepiped slider from the top to the bottom of the slider are convergent and it is the actuator for this slide in a frame construction mounted pivotably about a horizontal axis. As a result, as the slider advances from the retracted position toward the exit aperture, it is allowed to deflect upward in the event of a risk of jamming on the side surfaces, as any obstruction in the gap between the side surfaces and the adjacent walls causes the slider to slide over the inclined surface pushes up.
Vorzugsweise ist die obere Begrenzung der Austrittsöffnung für Chargiergut durch eine horizontale, drehbar gelagerte Walze gebildet. Diese leitet das Chargiergut um die Kante, so dass es sich hier nicht verklemmen kann. Die Walze ist vorzugsweise um eine horizontale Achse schwenkbar gelagert und mittels einer Betätigungsvorrichtung nach unten drückbar. Hierdurch kann die Walze entgegen dem eigenen Gewicht oder einer Druckkraft schwenkend nach oben ausweichen und hierbei die Austrittsöffnung in der Höhe vergrößern. Durch Mitnehmerelemente an der Umfangsfläche der Walze wird sichergestellt, dass das austretende Chargiergut die Umfangsfläche der Walze mitnimmt und ohne Relativbewegung zu dieser an der Walzenoberfläche abrollt.Preferably, the upper boundary of the discharge opening for charging material is formed by a horizontal, rotatably mounted roller. This directs the charging material around the edge, so that it can not get stuck here. The roller is preferably mounted pivotably about a horizontal axis and can be pressed down by means of an actuating device. This allows the roller against its own weight or a compressive force to swerve upward and thereby increase the outlet opening in height. By driving elements on the peripheral surface of the roller ensures that the exiting charging material entrains the peripheral surface of the roller and rolls without relative movement to this on the roller surface.
Vorzugsweise ist der durch die Schachtwände begrenzte Innenraum des Schachtes des Chargiergutvorwärmers, insbesondere im unteren Bereich, im Horizontalschnitt rechteckig ausgebildet. Bei sich über die Länge der längeren Seite erstreckender Austrittsöffnung lässt sich dann mit einem etwa quaderförmigen Schieber, der sich seitlich bis zu den Wänden erstreckt mittels eines Hubes eine relativ große Menge aus dem Chargiergutvorwärmer austragen.Preferably, the limited by the shaft walls of the interior of the shaft of the Chargiergutvorwärmers, in particular in the lower region, formed in horizontal section rectangular. In extending over the length of the longer side outlet opening can then be discharged with an approximately cuboid slide, which extends laterally to the walls by means of a stroke, a relatively large amount of the Chargiergutvorwärmer.
Für einen seitlichen Anschluss an ein Schmelzgefäß kann an der Austrittsöffnung ein diese umgebender Ansatz mit einem Flansch oder in Form einer Muffe vorgesehen sein, die eine gasdichte Verbindung mit der Chargieröffnung des Schmelzgefäßes erlaubt, die vorzugsweise seitlich im Obergefäß des Schmelzgefäßes vorgesehen ist. Vorzugsweise ist die Chargiervorrichtung horizontal fahrbar ausgebildet und weist zu diesem Zweck entweder ein Fahrgestell oder eine Rollenlagerung auf. In diesem Fall ist eine Muffenverbindung besonders vorteilhaft, weil hierdurch eine schnelle Verbindung mit dem Gefäß und Trennung von dem Gefäß möglich ist, was insbesondere bei einem kippbaren Gefäß eines Lichtbogenofens als Schmelzgefäß vorteilhaft erscheint. Der Schmelzofen weist vorzugsweise ein ovales Gefäß auf, wobei in einer Längsseite des Ovals die an die Austrittsöffnung der Chargiervorrichtung anzuschließende Chargieröffnung vorgesehen ist.For a lateral connection to a melting vessel may be provided at the outlet opening a surrounding approach with a flange or in the form of a sleeve which allows a gas-tight connection with the charging opening of the melting vessel, which is preferably provided laterally in the upper vessel of the melting vessel. Preferably, the charging device is horizontally movable and has for this purpose either a chassis or a roller bearing. In this case, a socket connection is particularly advantageous, because in this way a fast connection to the vessel and separation from the vessel is possible, which appears to be advantageous in particular in a tiltable vessel of an electric arc furnace as a melting vessel. The melting furnace preferably has an oval vessel, the charging opening to be connected to the outlet opening of the charging device being provided in a longitudinal side of the oval.
Im Hinblick auf die Zielsetzung einer robusten und zuverlässigen Ausgestaltung des Chargiergutvorwärmers, die einen unsortierten Einsatz von Schwer- und Leichtschrott ermöglicht, sind die mechanisch beanspruchten Teile des Schachtes und/oder Schiebers vorzugsweise aus nebeneinander angeordneten, zu einer Konstruktionseinheit verbundenen Stahlknüppelabschnitten gebildet. Eine dichte Verbindung der nebeneinander angeordneten Stahlknüppelabschnitte wird vorzugsweise durch zwischengefügte Stahlstangenabschnitte erzielt, die an der thermisch und mechanisch beanspruchten Seite der Konstruktionseinheit liegen und dieser einer gewisse Elastizität quer zu den Stahlknüppeln sowie eine gute Kühlmöglichkeit durch Sprühkühlung von der entgegengesetzten Seite ermöglichen. Die Stahlknüppelabschnitte sollen in den Wandbereichen des Schachtes senkrecht angeordnet sein.With regard to the objective of a robust and reliable embodiment of the charging material preheater, which allows an unsorted use of heavy and light scrap, the mechanically stressed parts of the shaft and / or slide are preferably formed of juxtaposed, connected to a construction unit steel billet sections. A tight connection of the juxtaposed steel billet sections is preferably achieved by interposed steel rod sections which lie against the thermally and mechanically stressed side of the construction unit and which allow a certain elasticity across the steel billets and good cooling capability by spray cooling from the opposite side. The steel billet sections should be arranged vertically in the wall regions of the shaft.
Die Erfindung wird anhand von acht Figuren näher erläutert. Es zeigen
- Fig. 1
- eine perspektivische Ansicht einer erfindungsgemäßen, als Chargiergutvorwärmer ausgebildeten Chargiervorrichtung
- Fig. 2
- eine Prinzipskizze, teilweise im Längsschnitt, der an das Obergefäß eines Lichtbogenofens angeschlossenen Chargiervorrichtung,
- Fig. 3
- im Längsschnitt den vorderen Teil eines Schiebers,
- Fig. 4
- eine Stirnansicht des Schiebers,
- Fig. 5
- den Schnitt V-V von
Fig. 3 , - Fig. 6
- die Schwenkhebellagerung der Mitnehmerwalze,
- Fig. 7 und 8
- in einer Vorderansicht und einer Draufsicht eine durch Stahlknüppelabschnitte gebildete Konstruktionseinheit.
- Fig. 1
- a perspective view of an inventive, as Chargiergutvorwärmer trained charging device
- Fig. 2
- a schematic diagram, partially in longitudinal section, the charging device connected to the upper vessel of an arc furnace,
- Fig. 3
- in longitudinal section the front part of a slider,
- Fig. 4
- an end view of the slider,
- Fig. 5
- the section VV of
Fig. 3 . - Fig. 6
- the pivot lever bearing of the driver roller,
- FIGS. 7 and 8
- in a front view and a plan view of a construction unit formed by steel billet sections.
Der in
Der Chargiergutvorwärmer enthält ferner einen Schieber 13, der in den
Die Oberseite 19 des Schachtbodens 8 ist vorzugsweise zur Austrittsöffnung 11 des Schachtes 2 hin abfallend ausgebildet. Ein Neigungswinkel von 15 Grad gegenüber der Waagerechten hat sich als vorteilhaft erwiesen. Der Neigungswinkel sollte nicht größer als 45 Grad sein, weil sonst die erforderliche Sperrung des Chargiergutaustrags nicht mehr gegeben ist und Chargiergut unkontrolliert die Austrittsöffnung 11 verlässt.The top 19 of the
Der Konvergenzwinkel α (siehe
Um Blockierung an der oberen Begrenzung der Austrittsöffnung 11 beim Austragen von unsortiertem Schrott zu vermeiden, ist die obere Begrenzung durch eine horizontale, drehbar gelagerte Walze 26 gebildet. Die Walze ist um eine feststehende horizontale Achse 27 (siehe
Die Walze 26 weist auf ihrer Umfangsfläche verteilte Mitnehmerelemente 30 auf, die im vorliegenden Fall als parallel zur Achsrichtung der Walze verlaufende Mitnehmerrippen ausgebildet sind. Beim Austragen von Chargiergut aus dem Schacht mittels des Schiebers 13 verhaken sich die Mitnehmer am transportierten Gut und es wird die sich frei drehende Walze 26 mitgenommen. Hierdurch wird das Gut auch im oberen Bereich der Kante der Austrittsöffnung 11, ohne die Gefahr eines Verklemmens, frei ausgeträgen, wobei die Walze aufgrund ihrer Schwenkbewegung, durch das transportierte Chargiergut erzwungene Höhenänderungen, ausgleichen kann. Die Walze könnte auch antreibbar ausgebildet werden um das Material positiv im Bereich der oberen Kante der Austrittsöffnung 11 hinauszubefördern. In diesem Fall sollte die Drehbewegung der Walze 26 mit der Schubbewegung des Schiebers 13 synchronisiert sein.The
Vorzugsweise ist die als Chargiergutvorwärmer ausgebildete Chargiervorrichtung zum Vorwärmen von in ein Schmelzgefäß, insbesondere in das Gefäß eines Lichtbogenofens zu chargierendem Chargiergut bestimmt. Zu diesem Zweck ist es vorteilhaft, wenn die Verbindung zwischen Chargiergutvorwärmer und dem Schmelzgefäß schnell gelöst werden kann, damit beim Kippen des Gefäßes der Chargiergutvorwärmer nicht mitgekippt werden muss. Andererseits soll das heiße Abgas des Lichtbogenofens ohne wesentliche Verluste durch die Austrittsöffnung 11 für das Chargiergut, die als Gaseinlaß dient, in den Schacht 2 eingeleitet und nach Durchströmen des zu erhitzenden Chargiergutes durch den oberen Gasauslaß 12 wieder abgeleitet werden können.The charging device designed as charging material preheater is preferably intended for preheating charging goods to be charged into a melting vessel, in particular into the vessel of an electric arc furnace. For this purpose, it is advantageous if the connection between Chargiergutvorwärmer and the melting vessel can be solved quickly so that when tilting the vessel of the charging material preheater must not be tipped. On the other hand, the hot exhaust gas of the electric arc furnace without significant losses through the
In
Der erfindungsgemäße Chargiergutvorwärmer ist für hohe mechanische Beanspruchungen geeignet. Um die Robustheit und Zuverlässigkeit gegenüber bekannten Chargiergutvorwärmern zu vergrößern, sind gemäß einer Weiterbildung der Erfindung, für die selbständiger Schutz beansprucht wird, mechanisch hoch beanspruchte Teile des Schachtes 2 und/oder Schiebers 13 aus nebeneinander angeordneten, zu einer Konstruktionseinheit 40 verbundenen Stahlknüppelabschnitten 41 gebildet.The Chargiergutvorwärmer invention is suitable for high mechanical stresses. In order to increase the robustness and reliability compared to known charging material preheaters, according to a development of the invention for which independent protection is claimed, mechanically highly stressed parts of the shaft 2 and / or slide 13 are arranged side by side and formed into a
Eine solche Konstruktionseinheit ist in den
Bevorzugte Querschnittsabmessungen von auf dem Stahlmarkt angebotenen Stahlknüppeln zur Herstellung der Stahlknüppelabschnitte sind 100mmx100mm. Der Durchmesser der Rundstahlstangenabschnitte 43 liegt vorzugsweise bei einem Fünftel der Querschnittsseitenabmessungen der Stahlknüppel, im vorliegenden Fall bei etwa 20mm.Preferred cross-sectional dimensions of steel billets offered on the steel market for making the steel billet sections are 100mmx100mm. The diameter of the
Eine erforderliche Kühlung der Schachtwände erfolgt bei dieser Ausgestaltung vorteilhafterweise durch eine Spritzkühlung, d.h. über Spritzdüsen, die in der Rahmenkonstruktion 3 angebracht sind. Da die Kühlung auf der den Stahlstangenabschnitten entgegengesetzten Seite der Konstruktionseinheit erfolgt, sind die Knüppelabschnitte 41 auch über deren, durch die zwischengefügten Stahlstangenabschnitte 43 gebildeten Zwischenräume zwischen benachbarten Knüppelabschnitten kühlbar.A required cooling of the shaft walls is advantageously carried out in this embodiment by a spray cooling, i. via spray nozzles which are mounted in the
Claims (16)
- Charging device (1) for charging of charging stock into a melting vessel, comprising
a shaft (2) having
shaft walls (4, 5, 6, 7) held in a frame structure (3),
a lower shaft floor (8),
an upper inlet opening (9) for charging stock,
a discharge opening (11) for charging stock in a side wall in the lower area of the shaft (2),
a pusher (13) having
a top surface (14), a bottom surface (15), an end surface (16) extending transverse to the pushing direction and two lateral surfaces (17, 18) extending parallel to the pushing direction,
which pusher, resting with its bottom surface (15) on the top surface (19) of the said shaft floor (8), is movable by a first actuating device (20) between a first, retracted position, which exposes the shaft floor, and a second position, which is advanced toward said discharge opening (11), for the batch transport of charging stock present in the shaft (2) toward and through said discharge opening (11),
characterised in that
the lateral surfaces (17, 18) of the pusher (13) converge from the top surface to the bottom surface (15) of the pusher (13) and
the first actuating device (20) is borne in the frame structure (3) so as to be pivotable about a horizontal axis. - Charging device according to Claim 1, characterised in that the upper boundary of the discharge opening (11) for charging stock is formed by a horizontal, rotatably borne roller.
- Charging device according to Claim 2, characterised in that the roller (26) is pivotably borne about a horizontal axis (27).
- Charging device according to Claim 2 or 3, characterised in that the roller (26) is downwardly pushable by a second actuating device (28).
- Charging device according to one of Claims 2 to 4, characterised in that the roller (26) comprises engaging elements (30) distributed around its circumferential surface.
- Charging device according to Claim 5, characterised in that the engaging elements (30) are formed as engaging ribs.
- Charging device according to one of Claims 1 to 6, characterised in that the first and/or the second actuating device is formed as a linear drive.
- Charging device according to one of Claims 1 to 7, characterised in that the interior space of the shaft (2) bounded by the shaft walls (4, 5, 6, 7) is rectangularly formed in horizontal cross section.
- Charging device according to one of Claims 1 to 8, characterised in that a projection (33) surrounding the opening is provided at the discharge opening (11) for the charging stock for connection to a charging opening (32) of a melting vessel (31).
- Charging device according to Claim 9, characterised in that the projection is constructed in the form of a sleeve (33), whose external contour is adapted to the internal contour of a charging opening (32) for insertion into a charging opening (32) of a melting vessel (31).
- Charging device according to one of Claims 1 to 10, characterised in that it is constructed so as to be displaceable.
- Charging device according to Claim 11, characterised in that the frame structure (3) of the shaft (2) is displaceable by an undercarriage or on rollers (34).
- Charging device, in particular according to one of Claims 1 to 12, characterised in that mechanically stressed parts of the shaft (2) and/or pusher (13) are formed from steel billet segments (41) that are disposed adjacent to each other and are connected to a structural unit (40).
- Charging device according to Claim 13, characterised in that the steel billet segments (41) are welded at the edges (42) via interleaved steel rod segments (43), which edges (42) lie on the thermally and/or mechanically stressed side of the structural unit (40).
- Charging stock preheater comprising a charging device according to one of Claims 1 to 14, wherein the discharge opening (11) for charging stock in a side wall in the lower area of the shaft forms a gas inlet for a heating gas for heating charging stock present in the shaft, the upper inlet opening (9) for charging stock is closable by a cover (10) and a gas outlet (12) for the heating gas is provided in the upper area of the shaft (2).
- Charging stock preheater according to Claim 15, characterised in that a spray water cooling device having spray nozzles directed towards thermally stressed shaft wall segments (4, 5, 6, 7) is installed in the frame structure (3).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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PL04803263T PL1687577T3 (en) | 2003-11-27 | 2004-11-25 | Charging device, especially charging stock preheater |
SI200431031T SI1687577T1 (en) | 2003-11-27 | 2004-11-25 | Charging device, especially charging stock preheater |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10355549A DE10355549A1 (en) | 2003-11-27 | 2003-11-27 | charging material |
PCT/EP2004/013355 WO2005052481A1 (en) | 2003-11-27 | 2004-11-25 | Charging device, especially charging stock preheater |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1687577A1 EP1687577A1 (en) | 2006-08-09 |
EP1687577B1 true EP1687577B1 (en) | 2009-01-07 |
Family
ID=34609359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04803263A Not-in-force EP1687577B1 (en) | 2003-11-27 | 2004-11-25 | Charging device, especially charging stock preheater |
Country Status (17)
Country | Link |
---|---|
US (1) | US7497985B2 (en) |
EP (1) | EP1687577B1 (en) |
JP (1) | JP4343956B2 (en) |
KR (1) | KR100777094B1 (en) |
CN (2) | CN101514872B (en) |
AT (1) | ATE420330T1 (en) |
AU (1) | AU2004293557B2 (en) |
BR (1) | BRPI0416996A (en) |
CA (1) | CA2546473C (en) |
DE (2) | DE10355549A1 (en) |
EA (1) | EA008086B1 (en) |
ES (1) | ES2318357T3 (en) |
PL (1) | PL1687577T3 (en) |
PT (1) | PT1687577E (en) |
SI (1) | SI1687577T1 (en) |
UA (1) | UA80926C2 (en) |
WO (1) | WO2005052481A1 (en) |
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US8702367B2 (en) * | 2007-03-21 | 2014-04-22 | Edw. C. Levy Co. | Method, and process for preparing a recyclable material |
DE102008060774B4 (en) | 2008-12-05 | 2013-03-28 | Wiktor Raile | Scrap heating process and devices in steelmaking plants |
DE102009016774A1 (en) | 2009-04-07 | 2010-10-14 | Fuchs Technology Holding Ag | charging device |
WO2011009579A1 (en) | 2009-07-20 | 2011-01-27 | Fuchs Technology Holding Ag | Sealing and filling device for a metallurgical furnace, metallurgical furnace, and method for tapping the metallurgical furnace. |
DE102009033934B3 (en) * | 2009-07-20 | 2011-02-03 | Fuchs Technology Holding Ag | Device for temporarily sealing a tap hole, which has a first internal diameter and is provided in the bottom of a metallurgical furnace, for filling the tap hole with free-flowing fire-resistant compound, comprises sealing and filling pipe |
JP2011033217A (en) * | 2009-07-30 | 2011-02-17 | Jp Steel Plantech Co | Arc melting equipment and method of manufacturing molten metal by using the same |
DE102010045825A1 (en) | 2010-09-20 | 2012-03-22 | Intracon Gmbh | Charging shaft system and filling method |
DE202010018098U1 (en) | 2010-09-20 | 2014-02-04 | Inteco Special Melting Technologies Gmbh | Charging shaft system |
DE102010045948A1 (en) | 2010-09-21 | 2012-03-22 | Fuchs Technology Holding Ag | Fusion aggregate for steel plant, has device charger arranged on lateral charging opening for charging of insert material into furnace vessel equipped with electrode assemblies |
DE102010045951A1 (en) | 2010-09-21 | 2012-03-22 | Fuchs Technology Holding Ag | Steel production- and processing device comprises electric arc furnace with furnace vessel, lid, and loading opening in side wall of furnace vessel, feedstock charging device for charging through opening, and processing device |
DE102010047516A1 (en) | 2010-10-05 | 2012-04-05 | Fuchs Technology Holding Ag | charging device |
DE202010018096U1 (en) | 2010-10-25 | 2014-03-07 | Inteco Special Melting Technologies Gmbh | Scrap pusher |
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DE102011109860A1 (en) * | 2011-08-09 | 2013-02-14 | Fuchs Technology Holding Ag | Charging device with replaceable bottom section |
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DE102012014142B3 (en) * | 2012-07-18 | 2013-12-12 | Inteco Special Melting Technologies Gmbh | Scrap preheating and feeding system |
CN102923973A (en) * | 2012-11-21 | 2013-02-13 | 新兴河北工程技术有限公司 | Push head of active lime pre-heater |
KR101406503B1 (en) | 2012-12-21 | 2014-06-13 | 주식회사 포스코 | Fixed type electric arc furnace and molten steel manufacturing method |
EP2960607B1 (en) | 2013-02-22 | 2019-02-13 | CISDI Engineering Co., Ltd | Arc furnace automatic feeding device |
JP2015152230A (en) * | 2014-02-14 | 2015-08-24 | スチールプランテック株式会社 | Preheater used in melting furnace, melting system, and melting system construction method |
US9604274B2 (en) * | 2014-07-25 | 2017-03-28 | Inter-Power Corporation | Billet transfer line clean-out device and method |
DE102014115671A1 (en) * | 2014-10-28 | 2016-05-12 | Gerhard Fuchs | MELTING DEVICE AND MELTING METHOD |
KR20160073559A (en) | 2014-12-17 | 2016-06-27 | 주식회사 포스코 | Scrap basket and scrap preheating device including the same, and scrap preheating methods using the scrap preheating device |
CN104949497A (en) * | 2015-07-13 | 2015-09-30 | 贵州正业工程技术投资有限公司 | Energy-saving top charge hot-air-drying device for submerged arc furnace |
CN105202907B (en) | 2015-10-30 | 2017-09-29 | 中冶赛迪工程技术股份有限公司 | Scrap steel preheating type electric arc furnaces and the method for improving side wall charging electric arc stove heat cold-zone |
CN110388830B (en) * | 2019-08-01 | 2024-02-06 | 中冶京诚工程技术有限公司 | Scrap steel preheating device, arc melting equipment and preheating method |
CN112941266B (en) * | 2019-11-26 | 2023-09-08 | 中冶京诚工程技术有限公司 | Steelmaking feeding device, steel pushing mechanism and steelmaking feeding method |
CN110940195A (en) * | 2019-12-27 | 2020-03-31 | 中冶焦耐(大连)工程技术有限公司 | Upper material layer height adjusting device and method of rotary lime kiln preheater |
CN113774184B (en) * | 2021-08-10 | 2023-06-30 | 上海展形再生资源有限公司 | Open type scrap steel heating device for sundry pretreatment and method thereof |
CN114754593B (en) * | 2022-04-13 | 2023-10-20 | 河北科技大学 | Clear stifled mechanical device of cement kiln pre-heater |
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-
2003
- 2003-11-27 DE DE10355549A patent/DE10355549A1/en not_active Withdrawn
-
2004
- 2004-11-25 US US10/580,667 patent/US7497985B2/en not_active Expired - Fee Related
- 2004-11-25 UA UAA200607128A patent/UA80926C2/en unknown
- 2004-11-25 EP EP04803263A patent/EP1687577B1/en not_active Not-in-force
- 2004-11-25 CN CN200810189763XA patent/CN101514872B/en not_active Expired - Fee Related
- 2004-11-25 SI SI200431031T patent/SI1687577T1/en unknown
- 2004-11-25 AT AT04803263T patent/ATE420330T1/en active
- 2004-11-25 CA CA2546473A patent/CA2546473C/en not_active Expired - Fee Related
- 2004-11-25 WO PCT/EP2004/013355 patent/WO2005052481A1/en active Application Filing
- 2004-11-25 AU AU2004293557A patent/AU2004293557B2/en not_active Ceased
- 2004-11-25 CN CNB2004800351854A patent/CN100561093C/en not_active Expired - Fee Related
- 2004-11-25 JP JP2006540375A patent/JP4343956B2/en not_active Expired - Fee Related
- 2004-11-25 KR KR1020067012733A patent/KR100777094B1/en not_active IP Right Cessation
- 2004-11-25 ES ES04803263T patent/ES2318357T3/en active Active
- 2004-11-25 BR BRPI0416996-4A patent/BRPI0416996A/en active Search and Examination
- 2004-11-25 PL PL04803263T patent/PL1687577T3/en unknown
- 2004-11-25 PT PT04803263T patent/PT1687577E/en unknown
- 2004-11-25 DE DE502004008838T patent/DE502004008838D1/en active Active
- 2004-11-25 EA EA200600923A patent/EA008086B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN101514872B (en) | 2012-05-30 |
US20070013112A1 (en) | 2007-01-18 |
DE502004008838D1 (en) | 2009-02-26 |
WO2005052481A1 (en) | 2005-06-09 |
EA008086B1 (en) | 2007-02-27 |
UA80926C2 (en) | 2007-11-12 |
KR20060096159A (en) | 2006-09-07 |
JP2007513310A (en) | 2007-05-24 |
KR100777094B1 (en) | 2007-11-19 |
ATE420330T1 (en) | 2009-01-15 |
JP4343956B2 (en) | 2009-10-14 |
SI1687577T1 (en) | 2009-04-30 |
BRPI0416996A (en) | 2007-02-06 |
AU2004293557A1 (en) | 2005-06-09 |
CN1926397A (en) | 2007-03-07 |
CN101514872A (en) | 2009-08-26 |
EA200600923A1 (en) | 2006-12-29 |
PT1687577E (en) | 2009-02-04 |
AU2004293557B2 (en) | 2007-11-29 |
CN100561093C (en) | 2009-11-18 |
PL1687577T3 (en) | 2009-06-30 |
US7497985B2 (en) | 2009-03-03 |
ES2318357T3 (en) | 2009-05-01 |
EP1687577A1 (en) | 2006-08-09 |
CA2546473A1 (en) | 2005-06-09 |
CA2546473C (en) | 2010-05-04 |
DE10355549A1 (en) | 2005-06-23 |
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