EP0624412A1 - Dispositif pour l'addition continue d'additifs de coulée pulvérulents ou granulaires à la surface d'un bain de métal fondu dans une lingotière de coulée continue - Google Patents

Dispositif pour l'addition continue d'additifs de coulée pulvérulents ou granulaires à la surface d'un bain de métal fondu dans une lingotière de coulée continue Download PDF

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Publication number
EP0624412A1
EP0624412A1 EP94104255A EP94104255A EP0624412A1 EP 0624412 A1 EP0624412 A1 EP 0624412A1 EP 94104255 A EP94104255 A EP 94104255A EP 94104255 A EP94104255 A EP 94104255A EP 0624412 A1 EP0624412 A1 EP 0624412A1
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EP
European Patent Office
Prior art keywords
storage container
screw conveyor
removal
pouring aid
continuous casting
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
Application number
EP94104255A
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German (de)
English (en)
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EP0624412B1 (fr
Inventor
Frank Dr. Unterberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INTOCAST AG FEUERFEST-PRODUKTE UND GIESSHILFSMITTE
Original Assignee
Intocast GmbH Feuerfestprodukte und Giesshilfsmittel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intocast GmbH Feuerfestprodukte und Giesshilfsmittel filed Critical Intocast GmbH Feuerfestprodukte und Giesshilfsmittel
Publication of EP0624412A1 publication Critical patent/EP0624412A1/fr
Application granted granted Critical
Publication of EP0624412B1 publication Critical patent/EP0624412B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/108—Feeding additives, powders, or the like

Definitions

  • the invention relates to a device of the type corresponding to the preamble of claim 1.
  • Continuous casting aids form a layer a few centimeters thick on the bath level formed in the upper area of a continuous casting mold. They partially melt in the area in contact with the bath level and form a slag that settles between the mold wall and the solidifying strand. The still loose upper part of the pouring aid layer has a heat-insulating effect and prevents excessive loss of heat from the bathroom mirror.
  • the pouring aid By taking the molten pouring agent slag with it, the pouring aid continues to be consumed. This consumption is in the range of about 0.3 kg to 0.8 kg per ton of steel. This quantity must therefore be supplied continuously, while maintaining a uniform layer thickness is essential for the quality of the strand surface. Uniformity must be sought in both the vertical and horizontal directions.
  • the uniformity in the vertical direction means that a certain layer thickness is maintained during the entire casting period in order to always ensure the availability of a sufficient amount of slag.
  • the uniformity in the horizontal direction means the uniformity of this layer thickness over the strand cross-section in order to achieve a uniform insulation effect at every point.
  • a flat conveying channel attached to the lower end of a storage container extends from one side to the continuous casting mold.
  • a gas distribution space into which air can be blown in, which makes the powdered casting aid in the channel fluidized and transportable.
  • air is blown in, it is conveyed from the storage container through the channel to the bath level in the continuous casting mold. If the air is turned off, the funding stops.
  • the control takes place via temperature sensors, which are arranged above the mold. When the pouring aid layer on the bath level becomes thinner and the insulating effect of the powder diminishes, the temperature rises and the addition of the pouring aid is triggered. So this is not continuous, but intermittent, similar to the manual task.
  • the devices which work purely on the principle of gravity, were initially also designed for the use of powdered pouring aids.
  • a suitable addition pipe leads from a storage container to the bath level. The amount dispensed forms a cone of dirt on the bath level, which rises to the bottom of the addition pipe. Then no more pouring aid slips. Only when the cone of consumption moves away from the lower end of the pipe does new pouring aid trickle in again.
  • This type of automatic regulation is also called the “chicken feeding" principle because it is common in automatic feeders.
  • powdered pouring aids cannot be reliably applied with this method, since blockages occur even with steeply arranged addition pipes (angle> 30 °).
  • the continuous addition of pouring aid granules is to make economic sense, it is also a requirement that the granules can be conveyed pneumatically and that the granules on the casting platform are not in sacks or big bags with industrial trucks or lifting vehicles for loading the storage container of the addition device must be transported. Only if pneumatic conveying is possible can the granulate be delivered in a silo vehicle, be blown into a silo with a considerable usable volume in the hallway and be pneumatically conveyed from there to the storage container in order to ensure that the casting powder is continuously available without any manipulation the casting platform, which require additional labor. Pneumatic conveying is - especially with sequential casting - a basic requirement for the continuity of the entire casting process and the personnel savings.
  • the granules from casting aids in particular from continuous casting powder, which in themselves allow a functioning addition only under the action of gravity, are, especially when they are in the form of a hollow sphere, so low in their abrasion resistance that they are destroyed during pneumatic conveying and partly as powder or Fragments get into the hopper of the feeder. Then, however, the already mentioned effect of the blockage occurs in the addition pipe. Apart from economic reasons, the granules are therefore also unsuitable for a practical dosage of continuous casting aids for technical reasons.
  • the device comprises a screw conveyor which runs transversely between the underside of the tundish and the top of the continuous casting mold and has vertically downward removal shafts through which the powdered pouring aid flows under the action of gravity and the lower limit of which forms a removal point for the pouring aid.
  • the tapping points are arranged at a predetermined distance above the bath level, which enables the flow of the pouring aid to be self-regulated according to the "chicken feeding" principle.
  • the conveying capacity is to ensure that the subsequent delivery of the casting aid to the individual removal shafts is always ensured of the screw conveyor to double the removal. Therefore, the device comprises a return line leading back from the end of the screw conveyor into the storage container.
  • the device according to WO 92 / OO819 can be improved, since the powder cones under the tapping points are partially strongly fluidized by the gas stream, which means that Self-regulation according to the "chicken feeding" principle is no longer possible and an uncontrolled flow of the pouring aid can take place through the removal shafts.
  • the invention has for its object to further develop the generic device so that simple technical means an interference-insensitive addition of the powdered pouring aid is possible even in systems in which the "chicken-feeding" principle does not seem practical.
  • an outlet opening is provided in the front end wall of the screw conveyor, so that the pouring aid is supplied to the bath level of the melt via the front end of the screw conveyor.
  • a particularly uniform and precisely meterable flow of the powdered pouring aid is according to claim 6 achieves that the screw conveyor has exactly one, downward-working in the outer surface of the tubular housing machined outlet opening for the casting aid.
  • a division of the pouring aid flowing through the outlet opening into a plurality of removal points is made possible if, in communication with the outlet opening, an outlet connection is arranged on the housing of the screw conveyor, the lower edge of which is designed as a connecting flange for connecting a distribution device (claims 7 to 9).
  • a first division of the flow of the pouring aid is accomplished in that the distribution device comprises a counter flange which can be operatively connected to the connecting flange and from which, forming a first branch, two angles symmetrical to the outlet nozzle axis form an angle of approximately 120 ° having downward-facing removal shafts, the first ends of which communicate with the outlet connection, the second ends of which each form a removal point.
  • the flow of the pouring aid can be distributed in a defined manner to the removal shafts if the outlet nozzle is equipped with a first flow divider.
  • a preferred technical embodiment of the first flow divider is the subject of claim 12.
  • the proportion of the partial flow fed to the respective removal shaft in the total flow of the pouring aid can be set if, according to claim 13, the outlet nozzle is pivotable about the longitudinal axis of the screw conveyor.
  • a further division of the flow of the pouring aid can preferably take place in that, according to claim 14, a side junction forming a second branching point is formed on each of the removal shafts, with its first end producing a connection to the inside of the respective removal shaft and pointing downward is the second end of which forms a tapping point.
  • a particularly uniform layer of the pouring aid on the bath level of the melt is achieved if the tapping points adjacent to one another are at approximately the same distance from one another (claim 15).
  • a flow divider is provided at each of the second branching points, which is used to allocate a defined amount of the flowing pouring aid to the respective side shaft.
  • An uncontrolled escape of the pouring aid which has escaped through the overflow opening into the surroundings of the continuous casting mold can be prevented by arranging a guide channel which projects above the front end face and extends downward beyond the bath level of the melt in the continuous casting mold and is inclined downward below the screw conveyor .
  • a loading of relatively wide continuous casting molds with casting aids in the direction of the broadside of the mold can take place in accordance with claim 20 by extending from a common storage container several screw conveyors of different lengths which are guided approximately in parallel, the length difference of which is selected such that one screw conveyor feeds the casting aids into the Continuous casting mold on one side of the dip tube, the other screw conveyor takes over the pouring aid supply on the other side of the dip tube.
  • a device according to the invention is in no way limited to the configuration of the screw conveyor exclusively according to claim 20 or claim 21. Depending on the respective operating conditions, any combination of the different screw conveyors with a storage container is also conceivable.
  • a further advantageous embodiment, in particular of a device according to the invention, comprises a displacement device which allows the removal points to be displaced in and / or transversely to the conveying direction of the screw conveyors (claim 23), which can be implemented constructively in the manner set out in claims 24 and 25.
  • the thickness of the pouring aid layer can be made more uniform on the one hand, and the device can also be e.g. can be used for wider or variable-width continuous casting molds without the need for further screw conveyors.
  • the use of such a displacement device is also possible in conjunction with conventional devices for the continuous addition of powdered or granulated pouring aids and can likewise lead to the layer thickness of the continuous casting aid being made more uniform.
  • a particularly advantageous embodiment in particular A device according to the invention comprises, according to claim 16, a small conveying device, which is arranged above the storage container and communicates with its filler neck and is known per se, by means of which the pouring aid is fed from the large silo to the storage container.
  • a small conveying device which is arranged above the storage container and communicates with its filler neck and is known per se, by means of which the pouring aid is fed from the large silo to the storage container.
  • the information relates to a view seen in the conveying direction of the device and is shown in the drawing on the right.
  • the information such as “back”, “left” and “right” is given accordingly.
  • the information “above” and “below” relates to the upright operating position of the device shown in FIG. 1.
  • the device designated 100 as a whole in FIG. 1 consists of a storage container 1 which has an outwardly directed filler neck 3 on its upper side 2.
  • a connection to a container 81 which is only indicated in the drawing and which is arranged above the storage container 1 and by means of one in the drawing, is established via a conveying line 5 which projects into the cover 4 of the filler neck 3 and by means of which the storage container is kept filled Pneumatic delivery line, not shown, is supplied with the casting aid from a large silo, also not shown.
  • a holder 7 arranged on the front end wall 6 of the storage container 1 carries on its upper side 8 a vibrator 9, which consists of an eccentrically mounted weight rotated by an electric motor. The vibration frequency is of the order of magnitude of 50 Hz.
  • a fluidization base 80 which can be charged with gas, such as air or inert gas, via a feed line 82.
  • the pouring aid 10 which is fluidized by the vibrations or additionally by the inflowing gas, flows out of the storage container 1 into the inlet opening 11 of two horizontal screw conveyors 20, 20 'arranged on the underside of the storage container and running parallel to one another, which are driven by one or more drive motors 12 .
  • the length of the screw conveyors 2O, 2O' is selected so differently that the one screw conveyor 2O the supply of the casting aid on one side of the the other takes over from the tundish 16 arranged above the continuous casting mold 14 into the dip tube 17 reaching into the melt 15 located in the continuous casting mold 14
  • Screw conveyor 2O ' manages the supply of the casting aid to the other side of the dip tube 17.
  • the dip tube 17 extends to below the bath level 13 of the melt 15 located in the continuous casting mold, the height of the bath level being kept constant by suitable means.
  • An outlet opening 18 is provided on the underside of the screw conveyors 2O, 2O ', through which the casting aid 10 is fed to the continuous casting mold 14.
  • the screw conveyors 2O, 2O ' which are identical in their mode of operation, are to be explained using the example of the right-hand screw conveyor 2O shown in section in the drawing.
  • the screw conveyor 20 comprises a tubular housing 22 in which a transport screw 23 is rotatably arranged.
  • the tubular housing 22 comprises an upward-facing inlet opening 11, which communicates with the interior of the storage container 1, and a downward-pointing outlet opening 18, which communicates with an outlet nozzle 24.
  • an overflow opening 26 is provided, through which the powdered pouring aid 10 can exit the inside of the screw conveyor if the discharge through the outlet opening 18 is prevented.
  • a guide channel 27 is arranged at the front end of the screw conveyor 20 in order not to allow overflowing pouring aid to flow out into the environment in an uncontrolled manner.
  • the guide channel 27 consists of a component with a trough-shaped cross section, which faces the overflow opening 16 on the inside of the trough and, at this distance and having the cross section of the housing 22 of the screw conveyor 2O, extends slightly inclined downwards to the height of the outlet flange 24.
  • the outlet connection 24 is followed by a distribution device 30 which allocates the flow of the casting aid to a plurality of removal points 29.
  • the distribution device comprises an outlet connecting piece 24 communicating with the outlet opening 18, which is formed by the side tube of a tube with its continuous partial tube 31 pushed onto the tubular housing 22 of the screw conveyor 20, 20 'and forming a sliding fit with this T-shaped tube section.
  • the inner cross section of the outlet nozzle 24 has the shape of an elongated hole, the width of which corresponds to the simple, the length of which corresponds to twice the inner diameter of a removal shaft 35.
  • the outlet nozzle 24 comprises a flange 33, which is used to connect a counter flange 34.
  • Extending from the counter flange are two removal shafts 35, which point downward symmetrically to the longitudinal axis S of the outlet connector and are at an angle of approximately 120 ° to one another and span a plane G lying parallel to the longitudinal axis L of the screw conveyor 20.
  • This arrangement ensures that the pouring aid essentially flows along the downwardly directed inner sides 36 of the removal shafts 35, 35 '.
  • the lower ends of the removal shafts 35 each form a removal point 29.
  • a side shaft 37, 37 ' is arranged on each removal shaft 35, 35' forming a right angle therewith communicates with the inside of the respective extraction shaft.
  • the lower ends of the side shafts each form a further removal point 29.
  • the attachment of the side shafts 37 and 37 'to the removal shafts 35 and 35' is provided at such points that the distance between them is adjacent Tapping points 29 is constant.
  • a first flow divider 40 is integrated in the outlet connection 24.
  • the flow divider 40 comprises an intermediate wall 41 which is defined in the plane E spanned by the longitudinal axis L of the screw conveyor 20 and the longitudinal axis S of the outlet nozzle 24 and which divides the outlet nozzle 24 into two half-spaces 42, 42 'of the same volume.
  • a first transverse wall 43 extends perpendicular to the intermediate wall 41 in the left half-space 42 from the lower center 44 of the outlet connection 24 diagonally to the rear upper edge 45 of the outlet connection 24 and covers the cross-section of the half-space 42 that has been covered Half space 42 'a transverse wall 43' from the lower center 44 of the outlet nozzle 24 diagonally to the front upper edge 46 of the outlet nozzle 24.
  • the pouring aid flowing through the outlet opening 18 thus becomes one of the two by dividing it into the two half spaces 42 and 42 ' Extraction shafts 35, 35 'allocated in a defined manner.
  • the allocation ratio can be set by pivoting the outlet nozzle 24 about the longitudinal axis L of the screw conveyor 20.
  • a second flow divider 50 or 50 ' is provided at the connection points between the removal shafts 35 or 35' and the side shafts 37 or 37 '.
  • the second flow divider 50 or 50 ' consists of a dividing wall 51, 51' arranged in the region of the branching in the removal shaft and extending in the plane E over the entire inner diameter of the removal shaft, on one side of which a semicircular connection opening 52 or 52 'to the side shaft 37 or 37' is arranged.
  • the pouring aid which on the one hand flows to the partition 51 or 51 'through the removal shaft 35 or 35', is fed to the removal point 29 of the removal shaft, while on the other hand it flows to the partition 51 or 51 ' flowing pouring aid is fed through the connection opening 52 or 52 'to the removal point 29 of the side shaft 37 or 37'.
  • the device 2OO which basically corresponds to the device 100 in its mode of operation, comprises a storage container 10 01, on the front end wall 10 6 of which a holder 1 07 is arranged.
  • the cold 1O7 in turn carries a vibrator 1O9 on its upper side, the vibration frequency of which is usually of the order of 50 Hz, but can be individually adapted to the requirements.
  • each screw conveyor 12O, 12O ', 12O' ', 12O' '', 12O ''', 12O ''' there is an outlet opening 118, 118 ', 118 in its front end wall 125, 125', 125 '', 125 '' ', 125' '' ', 125' '' ' ', 118'' ''are provided, which form removal points 129, via which the casting aid 110 flows out onto the bath level 113 of the steel melt 115.
  • the molten steel enters the continuous casting mold 115 via a dip tube 117, which is only indicated in the drawing, from a tundish 116, which is also only indicated.
  • the device 2OO further comprises a displacement device 6O, by means of which during the conveying process the position of the outlet openings 118, 118 ', 118'',118''', 118 ''' above the bath level 113 can be changed.
  • the displacement device 60 comprises a first linear adjuster 61 which comprises a slide 62 which can be displaced in a frame 65.
  • the reservoir 1O1 of the device 2OO rests on the carriage 62, which is driven by a motor-driven threaded spindle 66.
  • the first linear adjuster 61 is fixed with its frame 65 to a support arm 67, which in turn is connected to the slide 63 of a second linear adjuster 64, the adjustment axis S of which runs perpendicular to the adjustment axis T of the first linear adjuster.
  • the functioning of the second linear adjuster 64 otherwise corresponds to that of the first. From the frame 69 of the second linear adjuster 64, support brackets 68, 68 'extend which cooperate with a fixed stand or support (not shown in the drawing) and carry the entire device 2OO.
  • the outlet openings 118, 118 ', 118' ', 118' '', 118'''' for the casting aid 110 can be moved relative to the bath level 113 of the molten steel 115, as a result of which the thickness of the casting aid layer can be evened out.
  • the displacement device 6O is also particularly advantageous in connection with a wide-variable continuous casting mold, since the surface of the bath level that can be covered with casting aids by means of the device can be varied by a regular back and forth movement of the device 2OO, as can be carried out with the aid of the displacement device 6O .
  • FIG. 6 shows a further exemplary embodiment of a device 300 according to the invention in a side view, which essentially corresponds in its mode of operation to the device 100 shown in FIG. 1.
  • functionally adequate components are provided with the same reference numbers, but increased by the value 2OO.
  • the device 3OO comprises a storage container 2O1, from which a screw conveyor 22O extends over the bath level 213 of a steel melt 215 located in a continuous casting mold 214.
  • the pouring aid 21O conveyed by the screw conveyor 22O ' is divided via a first flow divider 24O and this downstream second flow divider 25O, the operation of which corresponds to that described with reference to FIGS. 1 to 3 and divide the flow of the pouring aid 210 between the tapping points 229.
  • a conveying material container 91 which belongs to a known small conveyor device 9O, is arranged by means of a carrier 71 and is closed at its lower end by means of a spring-loaded outlet flap 92.
  • the small conveyor device 9O furthermore comprises a fan 93 which is arranged separately behind the conveyed goods container 91 and which is connected to the conveyed goods container 91 via a feed and suction line 94 and 95, respectively is.
  • a cleaning filter 96 is switched on in the suction line 95.
  • a suction line 97 opens into it, via which the pouring aid can be sucked in from a large silo, not shown in the drawing.
  • the feed and discharge lines 94 and 95 communicate via a feed / rinse valve 98 with the material container 91 that is completely closed when the outlet flap 92 is closed.
  • the suction line 95 is inside of the conveying material container 91 arranged conveying air filter connected directly to the inside of the conveying material container 91, so that when closed Discharge flap 92 generated vacuuming aid is sucked through the suction line 97 from a large silo, not shown in the drawing, into the container 91.
  • the conveying air filter 99 has the task of separating the conveyed air sucked through the suction line 95 from the pouring aid. If a certain limit filling degree of pouring aids 21O has been reached due to the suction in the conveyed goods container 91, the weight of this pouring aid 21O is sufficient to open the outlet flap 92 against the spring force, whereby the pouring aid 21O flows out into the filler neck 203 of the storage container 2O1 located underneath . As long as the flap is open, the conveying / flushing valve 98 is switched to its flushing position shown in FIG.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Casting Devices For Molds (AREA)
EP94104255A 1993-04-01 1994-03-18 Dispositif pour l'addition continue d'additifs de coulée pulvérulents ou granulaires à la surface d'un bain de métal fondu dans une lingotière de coulée continue Expired - Lifetime EP0624412B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9304946U DE9304946U1 (de) 1993-04-01 1993-04-01 Vorrichtung zur kontinuierlichen Zugabe von pulverförmigen Gießhilfsmittel auf den Badespiegel einer Schmelze in einer Stranggießkokille
DE9304946U 1993-04-01

Publications (2)

Publication Number Publication Date
EP0624412A1 true EP0624412A1 (fr) 1994-11-17
EP0624412B1 EP0624412B1 (fr) 1999-11-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94104255A Expired - Lifetime EP0624412B1 (fr) 1993-04-01 1994-03-18 Dispositif pour l'addition continue d'additifs de coulée pulvérulents ou granulaires à la surface d'un bain de métal fondu dans une lingotière de coulée continue

Country Status (5)

Country Link
EP (1) EP0624412B1 (fr)
AT (1) ATE186665T1 (fr)
DE (2) DE9304946U1 (fr)
DK (1) DK0624412T3 (fr)
ES (1) ES2139029T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748948A1 (de) * 1997-10-24 1999-04-29 Mannesmann Ag Vorrichtung für die Zugabe von Gießpulver bei Stranggussanlagen
EP1048376A1 (fr) * 1999-04-28 2000-11-02 Sms Schloemann-Siemag Aktiengesellschaft Dispositif pour introduire des additifs de coulée dans une lingotière de coulée continue
DE19956059A1 (de) * 1999-11-22 2001-07-12 E S C H Engineering Service Ct Verfahren zur Zuführung von Gießpulvergranulat zu einer Stranggußkokille
CN104001879A (zh) * 2014-06-12 2014-08-27 北京科技大学 一种连续直通多孔材料的连铸设备与方法
CN105903933A (zh) * 2016-06-28 2016-08-31 广西长城矿山机械设备制造有限公司 一种铸造用保温覆盖剂自动投放装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007046261B3 (de) * 2007-09-26 2009-04-30 Mbl-Europe Gmbh Gießerei-Flussmittel-Granulatverteiler
CN104828486B (zh) * 2015-04-14 2018-06-15 武汉科技大学 一种结晶器保护渣螺旋送料装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1529099A (en) * 1975-11-12 1978-10-18 Nippon Steel Corp Apparatus for supplying powder to casting mould
US4312399A (en) * 1979-10-31 1982-01-26 Shinagawa Refractories Co., Ltd. Flux powder supplying apparatus for continuous casting
WO1992000819A1 (fr) * 1990-07-11 1992-01-23 Intocast Gmbh Feuerfestprodukte Und Giesshilfsmittel Procede et dispositif d'adjonction en continu d'additifs de coulee a la surface d'une masse fondue dans une coquille de coulee continue

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Publication number Priority date Publication date Assignee Title
DE2814492A1 (de) * 1978-03-31 1979-10-04 Mannesmann Ag Verfahren und vorrichtung zum dosierten aufbringen von giesshilfsmitteln auf die badoberflaeche von metallschmelzen
DE2834900C2 (de) * 1978-06-28 1983-10-27 BCIRA, Birmingham Vorrichtung zur Einführung von Pulver oder Granulat in geschmolzenes Metall
DE3931392A1 (de) * 1989-09-20 1991-03-28 Fuchs Systemtechnik Gmbh Verfahren und vorrichtung zum zumindest zeitweise gleichzeitigen beaufschlagen einer metallschmelze mit einem gas und feinkoernigen feststoffen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1529099A (en) * 1975-11-12 1978-10-18 Nippon Steel Corp Apparatus for supplying powder to casting mould
US4312399A (en) * 1979-10-31 1982-01-26 Shinagawa Refractories Co., Ltd. Flux powder supplying apparatus for continuous casting
WO1992000819A1 (fr) * 1990-07-11 1992-01-23 Intocast Gmbh Feuerfestprodukte Und Giesshilfsmittel Procede et dispositif d'adjonction en continu d'additifs de coulee a la surface d'une masse fondue dans une coquille de coulee continue

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748948A1 (de) * 1997-10-24 1999-04-29 Mannesmann Ag Vorrichtung für die Zugabe von Gießpulver bei Stranggussanlagen
DE19748948C2 (de) * 1997-10-24 2000-10-12 Mannesmann Ag Vorrichtung für die Zugabe von Gießpulver bei Stranggussanlagen
EP1048376A1 (fr) * 1999-04-28 2000-11-02 Sms Schloemann-Siemag Aktiengesellschaft Dispositif pour introduire des additifs de coulée dans une lingotière de coulée continue
DE19956059A1 (de) * 1999-11-22 2001-07-12 E S C H Engineering Service Ct Verfahren zur Zuführung von Gießpulvergranulat zu einer Stranggußkokille
DE19956059C2 (de) * 1999-11-22 2002-03-14 E S C H Engineering Service Ct Verfahren zur Zuführung von Gießpulvergranulat zu einer Stranggußkokille
CN104001879A (zh) * 2014-06-12 2014-08-27 北京科技大学 一种连续直通多孔材料的连铸设备与方法
CN105903933A (zh) * 2016-06-28 2016-08-31 广西长城矿山机械设备制造有限公司 一种铸造用保温覆盖剂自动投放装置

Also Published As

Publication number Publication date
ATE186665T1 (de) 1999-12-15
EP0624412B1 (fr) 1999-11-17
ES2139029T3 (es) 2000-02-01
DE9304946U1 (de) 1994-08-04
DK0624412T3 (da) 2000-05-22
DE59408925D1 (de) 1999-12-23

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