EP0624412B1 - Vorrichtung zur kontinuierlichen Zugabe von pulverförmigem und granuliertem Giesshilfsmittel auf den Badspiegel einer Schmelze in einer Stranggiesskokille - Google Patents
Vorrichtung zur kontinuierlichen Zugabe von pulverförmigem und granuliertem Giesshilfsmittel auf den Badspiegel einer Schmelze in einer Stranggiesskokille Download PDFInfo
- Publication number
- EP0624412B1 EP0624412B1 EP94104255A EP94104255A EP0624412B1 EP 0624412 B1 EP0624412 B1 EP 0624412B1 EP 94104255 A EP94104255 A EP 94104255A EP 94104255 A EP94104255 A EP 94104255A EP 0624412 B1 EP0624412 B1 EP 0624412B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screw conveyor
- casting
- discharge
- outlet
- reservoir container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005266 casting Methods 0.000 title claims abstract description 44
- 238000009749 continuous casting Methods 0.000 title claims abstract description 35
- 239000000155 melt Substances 0.000 title claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000000654 additive Substances 0.000 claims 10
- 230000000996 additive effect Effects 0.000 claims 10
- 238000010276 construction Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 30
- 239000000161 steel melt Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 13
- 238000010079 rubber tapping Methods 0.000 description 13
- 238000000605 extraction Methods 0.000 description 9
- 239000000843 powder Substances 0.000 description 9
- 238000009826 distribution Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 206010010774 Constipation Diseases 0.000 description 3
- 241000287828 Gallus gallus Species 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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 Preamble of claim 1 corresponding type.
- Continuous casting aids form a few centimeters thick layer on the top of a continuous casting mold formed bathroom mirror. They melt in their with that Bathroom mirror partially in contact with the area and form a slag between the mold wall and sets the freezing strand. The still loose upper part the pouring aid layer has a heat-insulating effect and prevents it excessive heat loss from the bathroom mirror.
- the molten casting aid By taking the molten casting aid slag there is a continuous consumption of the casting aid on. This consumption is in the range of about 0.3 kg to 0.8 kg per ton of steel. So this quantity must be continuous be delivered, compliance with a uniform layer thickness for the quality of the strand surface is essential.
- the uniformity must be in aimed vertically as well as horizontally become.
- the uniformity in the vertical direction means compliance with a certain layer thickness during the whole casting time, to always have the availability of sufficient Ensure amount of slag.
- the uniformity in the horizontal direction means uniformity this layer thickness over the strand cross-section by one to achieve uniform insulation at every point.
- the continuous addition of pouring agent granules is also supposed to have an economic sense
- the granules are conveyed pneumatically and the granulate on the casting platform is 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 the pneumatic conveying is possible, the granules in a silo vehicle delivered, in a silo standing in the hallway blown in considerable usable volume and from there to the Storage containers are pneumatically conveyed to this Way a continuous supply of the mold powder without ensuring transport manipulations on the casting platform, that require additional labor.
- the pneumatic Funding is - especially with sequence casting - Basic condition for the continuity of the entire casting process and personnel savings.
- the granules from pouring aids in particular from Continuous casting powder, which in itself is a working addition only allow under gravity, however, are before especially when they are available as hollow spheres, in their abrasion resistance so low that with pneumatic conveyance destroyed and partly as powder or fragments get into the storage container of the addition device. Then the already mentioned effect of constipation occurs in the addition tube. So the granules are out for economic reasons also for technical reasons for a practical dosage of continuous casting aids not suitable.
- the device includes a cross between the bottom of the tundish and the top of the continuous casting mold running screw conveyor with vertically downwards Removal shafts through which the powder Casting aids flowing under the influence of gravity and their lower limit of an extraction point for the pouring aid forms.
- the tapping points are in a predetermined Distance above the bath level, the one Self-regulation of the flow of the casting aid after the "Chicken feeding" principle enables.
- the device includes one from the end of the screw conveyor return line returning to the storage container.
- the invention has for its object the generic Develop device so that with simple technical means an interference-resistant addition of the powder Pouring aids also on systems in which the "Chicken-feeding" principle seems impractical, possible is.
- a particularly uniform and precisely dosed Flow of the powdered pouring aid is achieved that the screw conveyor is exactly one, down pointing into the outer surface of the tubular housing Has outlet opening for the pouring aid.
- a division of the flowing through the outlet opening Pouring aids to several tapping points is made possible when communicating with the outlet opening an outlet connection is arranged in the housing of the screw conveyor is the lower edge as a connection flange for the connection of a distribution device is formed.
- a first preferred embodiment of the device is in the front end wall of the screw conveyor an outlet is provided so that the supply of the Pouring aid on the bath level of the melt over the front end of the screw conveyor takes place.
- a first division of the flow of the casting aid accomplished in that the distribution device one that can be brought into operative connection with the connecting flange Counter flange comprises, from which, a first branch forming two symmetrically to the outlet nozzle axis at an angle of about 120 ° with its first End communicating with the outlet port facing down directional removal shafts extend, the second ends form one tapping point each.
- the flow of the pouring aid can be defined on the Extraction shafts can be distributed when the outlet nozzle equipped with a first flow divider according to claim 8 is.
- a preferred technical configuration of the first Flow divider is the subject of claim 9.
- the proportion of the feed chute that is sent to the respective extraction shaft Partial flow of the total flow of the pouring aid can be set be when according to claim 10 of the outlet nozzle is pivotable about the longitudinal axis of the screw conveyor.
- Another division of the flow of the pouring aid can preferably take place in that according to claim 11 a second one at each of the removal shafts Branch forming, with its first end one Connection with the interior of the respective removal shaft manufacturing, facing downward side shaft is the second end of which forms a tapping point.
- a particularly even layer of the pouring aid on the bath level of the melt is achieved when the neighboring tapping points approximately the same Have a distance from each other (claim 12).
- a flow divider at each of the second branch points provided that the allocation of a defined amount of flowing pouring aid to the respective side shaft serves.
- a loading of relatively wide continuous casting molds with Pouring aid in the direction of the mold broadside can according to claim 17 by the fact that of a common Storage container several guided approximately in parallel Extend screw conveyors of different lengths, whereby the difference in length is chosen so that the one screw conveyor the pouring aid supply into the continuous casting mold on one side of the dip tube, the other Screw conveyor on the other hand Side of the dip tube takes over.
- a device according to the invention is by no means on the design of the screw conveyor exclusively limited according to claim 17 or claim 18. It are - depending on the respective operating conditions - too any combination of different screw conveyors conceivable with a storage container.
- the pouring aid can be used if necessary be more fluidized, increasing the functional reliability the device can be increased.
- the device comprises a displacement device, which relocation of the tapping points in and / or allowed across the conveying direction of the screw conveyor (Claim 20) what in the reproduced in claims 21 and 22 Way can be realized constructively.
- relocation of the tapping points during the The conveying process can on the one hand be the thickness of the casting aid layer be further equalized, on the other hand the Device also e.g. for wider or wider variables Continuous casting molds are used without it further screw conveyors are required.
- relocation facility is also in connection with conventional devices for continuous Add powdery or granular pouring aids possible and can also be used here to even out the Lead layer thickness of the continuous casting aid.
- a particularly advantageous embodiment of the invention Apparatus according to claim 23 comprises an above arranged of the storage container, with its filler neck communicating small conveyor known per se Design by means of which the casting aid from the large silo Storage container is fed.
- small conveyors can set up the large silo be done away from the device, thereby taking up space is significantly reduced and their use even with unfavorable Space where previously the pouring aid supply usually on the bath level of the melt had to be done manually.
- the device designated 100 as a whole in FIG. 1 consists of a storage container 1, which at its Top 2 an outwardly directed filler neck 3 having. Via one, in the cover 4 of the filler neck 3 protruding conveyor line 5, with the help of which the reservoir kept filled is a connection to one produced in the drawing only indicated container 81, which is arranged above the storage container 1 and by means of a pneumatic, not shown in the drawing Delivery line from a likewise not shown Large silo is supplied with the casting aid.
- An on the front end wall 6 of the storage container 1 arranged Holder 7 carries a vibrator on its top 8 9, which consists of an eccentrically rotated by an electric motor stored weight. The vibration frequency is of the order of 50 Hz.
- a fluidization base 80 is attached, which via a feed line 82 with gas, e.g. Air or inert gas, can be charged.
- gas e.g. Air or inert gas
- From the storage container 1 flows through the vibrations or additionally pouring aid 10 fluidized by the inflowing gas into the inlet opening 11 of two on the underside of the storage container arranged, parallel to each other horizontal screw conveyor 20, 20 ', which of one or a plurality of drive motors 12 are driven.
- the screw conveyors 20, 20 ' extend over the bath level 13 the molten steel located in the continuous casting mold 14 15.
- the length of the screw conveyor 20, 20 ' is such chosen differently that the one screw conveyor 20th the supply of the casting aid on one side of the Tundishs 16 arranged above the continuous casting mold 14 into the melt 15 located in the continuous casting mold 14 Immersed dip tube 17 takes over, the other Screw conveyor 20 'the supply of the casting aid other side of the dip tube 17 accomplished.
- the Dip tube 17 extends below the bath level 13 the melt 15 located in the continuous casting mold, wherein the level of the bath level is constant by suitable means is held.
- At the bottom of the screw conveyor 20, 20 'each have an outlet opening 18, through which the casting aid 10 of the continuous casting mold 14 is forwarded.
- the screw conveyors are identical in their mode of operation 20.20 'should take the example of the right one in the drawing screw conveyor 20 shown in section become.
- the screw conveyor 20 comprises a tubular one Housing 22 in which a transport screw 23 is rotatable is arranged.
- the tubular housing 22 includes a connected to the inside of the storage container 1, upward inlet opening 11 and one downward pointing outlet opening 18, which with an outlet nozzle 24 communicates.
- On the front end wall 25 of the tubular housing 22 of the screw conveyor 20 is one Overflow opening 26 is provided through which the powder Pouring aid 10 in the case of prevention of drainage through the outlet opening 18 from the inside of the Auger can step out.
- a guide channel 27 is arranged.
- the lead channel 27 consists of a component of channel-shaped cross section, which faces the overflow opening 16 and at this distance having the cross section of the Housing 22 of the screw conveyor 20 overlap slightly inclined down to the height of the outlet flange 24 extends.
- a layer 28 of molten casting aid which is as uniform as possible, i.e.
- the outlet nozzle 24 is the flow of the pouring aid several tapping points 29 distributing device 30 downstream.
- the distribution device includes one with the outlet opening 18 communicating outlet connection 24, which through the side tube one with its continuous Partial tube 31 on the tubular housing 22 of the screw conveyor 20.20 'pushed and with this a sliding fit forming T-shaped pipe section is formed.
- the inside cross section the outlet connection 24 has the shape of a Elongated hole, the width of the simple, the length of the corresponds to twice the inside diameter of a removal shaft 35.
- the outlet nozzle includes 24 a flange 33, which is the connection of a counter flange 34 serves.
- a defined distribution of the flow of the pouring aid to ensure the two extraction shafts 35, 35 ' is a first flow divider in the outlet port 24 40 integrated.
- the flow divider 40 includes one in the through the longitudinal axis L of the screw conveyor 20 and Longitudinal axis S of the outlet nozzle 24 spanned plane E lying intermediate wall 41, which the outlet port 24 in divided two half-spaces 42, 42 'of the same volume. Perpendicular extends to the intermediate wall 41 in the left Half space 42 from the lower center 44 of the outlet nozzle 24 diagonally to the rear upper edge 45 of the outlet nozzle 24 and the cross section of the Half space 42 covering a first transverse wall 43.
- a transverse wall extends in the right half space 42 ' 43 'from the lower center 44 of the outlet port 24 diagonally to the front upper edge 46 of the outlet nozzle 24.
- the pouring aid flowing through the outlet opening 18 is divided by the two Half spaces 42 and 42 'each one of the two removal shafts 35,35 'defined assigned.
- a second flow divider 50 or 50 ' is provided at the connection points between the extraction shafts 35 and 35 'and the side shafts 37 and 37'.
- the second flow divider 50 or 50 ' consists of one in the area the branch arranged in the removal shaft over the entire inside diameter of the removal shaft extending partition 51, 51 'lying in plane E. one side of which has a semicircular connection opening 52 or 52 'to the side shaft 37 or 37' is arranged.
- the function of the device 100 corresponding device 200 comprises a storage container 101, on the front end wall 106 of which there is a holder 107 is arranged.
- the cold 107 carries on its top again a vibrator 109, the vibration frequency of which is usually is of the order of 50 Hz, but the Customizable requirements.
- Screw conveyor 120, 120 ', 120' ', 120' '', 120 '' '' made by one Motor 112 arranged on the side of the storage container 101 driven, corresponds to that already on Example of the device 100 shown in FIG. 1.
- the device 200 further comprises a displacement device 60, by means of which during the conveying process the position of the outlet openings 118, 118 ', 118' ', 118' '', 118 '''', 118 '''' Above the bath level 113 can be changed.
- the displacement device 60 comprises a first one Linear adjuster 61, which is displaceable in a frame 65 Carriage 62 includes. On the over a motorized Threaded spindle 66 driven carriage 62 rests the reservoir 101 of the device 200.
- the first linear adjuster 61 is with its frame 65 attached to a support arm 67, which in turn with the Carriage 63 of a second linear adjuster 64 connected whose adjustment axis S is perpendicular to the adjustment axis T of the first linear stage. How it works of the second linear adjuster 64 otherwise corresponds to that of the first. From the frame 69 of the second linear adjuster 64 extend bracket 68,68 ', which with a fixed, not shown in the drawing Stand or carrier work together and the entire device Wear 200.
- the outlet openings 118,118 ', 118' ', 118' '', 118''', 118 '' '' for the casting aid 110 relative to bath level 113 of molten steel 115 be moved, thereby making the thickness of the Pouring agent layer can be achieved.
- the displacement device 60 is also advantageous in connection with a wide variable continuous casting mold, because the surface which can be covered with casting aids by means of the device the bath level through a regular back and forth movement the device 200, as it is with the aid of the displacement device 60 can be performed, is variable.
- FIG. 6 is another embodiment of a Device 300 according to the invention in a side view shown, which essentially in their functioning corresponds to the device 100 shown in FIG. 1. Accordingly, functionally adequate components are the same Reference numbers, but increased by 200.
- the device 300 comprises a storage container 201, from which a screw conveyor 220 extends over the Bath level 213 in a continuous casting mold 214 Melting steel 215 extends.
- the division of the by the casting aid 210 conveyed to the screw conveyor 220 ′ takes place via a first flow divider 240 and this downstream second flow divider 250, in their mode of operation correspond to those described with reference to FIGS. 1 to 3 and the flow of pouring aid 210 to the tapping points Split 229.
- On the rear end wall 206 of the Storage container 201 is in turn one of the fluidization of the Casting aid 210 serving vibrator 209, which in its functionality corresponds to that described above, arranged.
- the storage container 201 is by means of a Carrier 71 to a known small conveyor device 90 conveying goods container 91 arranged, which on its lower end by means of a spring-loaded outlet flap 92 is closed.
- the small conveyor 90 whose Operation below with reference to FIGS. 7 and 8 will be described further includes a separately behind the conveying goods container 91 arranged blower 93, which via a feed and a suction line 94 and 95 with the Conveyed goods container 91 is connected. In the suction line 95 a cleaning filter 96 is switched on. About halfway through The height of the conveyed goods container 91 opens into a suction line 97, via which the casting aid from a in the Drawing not shown large silo is suction.
- the mode of operation of this known small conveyor 90 shall be briefly below with reference to FIGS. 7 and 8 are explained.
- the feed and discharge lines 94 and 95 respectively communicate with the via a feed / flush valve 98 closed outlet flap 92 completely closed Conveyed goods container 91.
- the suction line 95 In the conveyed position shown in FIG. 7 of the delivery / flush valve 98 is the suction line 95 arranged in the interior of the conveyed goods container 91 Conveying air filter directly with the inside of the container 91 connected so that by the closed Outlet flap 92 generated negative pressure pouring aid the suction line 97 from a not shown in the drawing Large silo sucked into the container 91 becomes.
- the conveying air filter 99 has the task of through the suction line 95 extracted air from the Separate pouring aids.
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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)
Description
Claims (23)
- Vorrichtung (100;200;300) zur kontinuierlichen Zugabe von pulverförmigem oder granuliertem Gießhilfsmittel (10;110;210) auf den Badspiegel (13;113;213) einer Schmelze in einer Stranggießkokille (14;114;214)mit einem Vorratsbehälter (1;101;201) zur Aufnahme des Gießhilfsmittels (10;110;210),mit mindestens einem mit dem Vorratsbehälter (1;101;201) in Verbindung stehenden Schneckenförderer (20,20' ;120,120' ,120'' ,120''' ,120'''' ;220) , welcher zwischen der Unterseite des Tundish (16;116;216) und der Oberseite der Stranggießkokille (14;114;214) hindurchgeführt istund mit Entnahmestellen (29;129;229), die mit dem Innern des Schneckenförderers (20,20';120,120',120'', 120''',120'''';220) in Verbindung stehen,
dadurch gekennzeichnet,daß die Vorrichtung (100;200;300) Mittel umfaßt, durch die der Schneckenförderer (20,20' ;120,120' ,120'' ,120''', 120'''';220) oder die gesamte Vorrichtung während des Fördervorgangs in Vibrationen versetzt wird,daß der Schneckenförderer (20,20') genau eine, nach unten weisende, in die Mantelfläche des rohrförmigen Gehäuses (22) des Schneckenförderers (20,20') eingearbeitete Austrittsöffnung (18) für das Gießhilfsmittel (10) aufweist,daß ein mit seinem durchgehenden Teilrohr (31) auf das Gehäuse (22) des Schneckenförderers (20) aufgeschobener T-förmiger Rohrabzweig einen nach unten weisenden, mit der Austrittsöffnung (18) kommunizierneden Austrittsstutzen (24) bildet unddaß eine mit der Austrittsöffnung (18) in Verbindung stehende Verteileinrichtung (30) zum Aufteilen des aus der Austrittsöffnung (18) fließenden Gießhilfsmittels zu mehreren Entnahmestellen (29) vorgesehen ist. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel einen Vibrator (9;109;209) umfassen, der außen an einer Stirnwandung (6;106;206) des Vorratsbehälters (1;101;201) oder an dem Schneckenförderer (20,20' ;120,120' ,120'' ,120''' ,120'''' ;220) angeordnet ist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Vibrator (9;109;209) aus einer exzentrisch auf einer Welle angeordneten Masse besteht, welche mittels eines elektrisch, pneumatisch oder hydraulisch angetriebenen Motors rotiert wird.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Frequenz des Vibrators (9;109;209) in der Größenordnung von 50Hz liegt.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß in der vorderen Stirnwand (125, 125' ,125'' ,125''' ,125'''') des Schneckenförderers (120, 120', 120'' ,120''' ,120'''') eine Austrittsöffnung (118, 118' ,118'' ,118''' ,118'''') vorgesehen ist.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der untere Rand des Austrittsstutzens (24) als Anschlußflansch (33) für den Anschluß der Verteileinrichtung (30) ausgebildet ist.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Verteileinrichtung (30) eine mit dem Anschlußflansch (33) in Wirkverbindung bringbaren Gegenflansch (34) umfaßt, von dem aus, eine erste Verzweigung bildend, sich symmetrisch zur Austrittsstutzenachse zwei einen Winkel von etwa 120° zueinander bildende, mit ihren ersten Enden mit dem Austrittsstutzen (24) kommunizierende, nach unten gerichtete Entnahmeschächte (35,35') erstrecken, deren zweite Enden jeweils eine Entnahmestelle (29) bilden.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Austrittstutzen (24) mit einem den Fluß des Gießhilfsmittels definiert auf die Entnahmeschächte (35, 35') verteilenden ersten Flußteiler (40) ausgestattet ist.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß der erste Flußteiler (40) durch eine Anordnung von Leitblechen (41;43;43') gebildet wird, bei der eine in der durch die Längsachse des Schneckenförderers (20,20') und der Längsachse des Austrittsstutzens (24) aufgespannten Ebene liegende Zwischenwand (41) den Austrittsstutzen (24) in zwei Halbräume (42,42') unterteilt, sich senkrecht zu der Zwischenwand (41) in dem einen der beiden Halbräume (42,42') von der unteren Mitte (44) des Austrittstutzens (24) diagonal bis zum hinteren oberen Rand (45) des Austrittsstutzens (24) und den dabei überstrichenden Querschnitt des Halbraumes (42) abdeckend eine erste Querwand (43) und dementsprechend sich in dem anderen Halbraum (42') von der unteren Mitte (44) des Austrittsstutzens (24) bis zum vorderen oberen Rand (46) eine zweite Querwand (43') erstreckt, so daß der eine Halbraum (42) ausschließlich mit dem einen Entnahmeschacht (35), der andere Halbraum (42') ausschließlich mit dem anderen Entnahmeschacht (35') in Verbindung steht.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der den ersten Flußteiler (40) beinhaltende Austrittsstutzen (24) um die Längsachse des Schneckenförderers (20,20') schwenkbar ist.
- Vorrichtung nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß an jedem der Entnahmeschächte (35,35') ein eine zweite Verzweigungsstelle bildender, mit seinem ersten Ende eine Verbindung mit dem Innern des jeweiligen Entnahmeschachts (35,35') herstellender, nach unten weisender Seitenschacht (37,37') angeordnet ist, dessen zweites Ende eine Entnahmestelle (29) bildet.
- Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß benachbarte Entnahmestellen (29) ungefähr gleichen Abstand zueinander aufweisen.
- Vorrichtung nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß an den zweiten Verzweigungsstellen jeweils ein eine definierte Menge des fließenden Gießhilfsmittels dem jeweiligen Seitenschacht zuteilender zweiter Flußteiler (50) vorgesehen ist.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß der zweite Flußteiler (50) eine horizontale, mittig in dem Entnahmeschacht (35,35') angeordnete sich über den gesamten Innendurchmesser des Entnahmeschachtes (35, 35') erstreckende Trennwand (51) umfaßt, auf deren einer Seite eine in ihrer Ausdehnung entlang der Längsachse des Seitenschachts die Trennwand nicht überragende Verbindungsöffnung (52) zu dem Seitenschacht (37) angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß in der vorderen Stirnwand (25) des rohrförmigen Gehäuses (22) des Schneckenförderers eine Überlauföffnung (26) vorgesehen ist.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß unterhalb des Schneckenförderers (20,20') ein die vordere Stirnwand (25) überragender, sich bis über den Badspiegel (13) der Schmelze in der Stranggießkokille (14) erstreckender nach unten geneigter Leitkanal (27) angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß sich von einem gemeinsamen Vorratsbehälter (1) mehrere etwa parallel geführte Schneckenförderer (20,20') unterschiedlicher Länge erstrecken, deren Längenunterschied so gewählt ist, daß die Gießhilfsmittelzufuhr in die Stranggießkokille (14) durch die Schneckenförderer (20,20') beidseitig des Tauchrohres (17) etwa gleichmäßig erfolgt.
- Vorrichtung nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß sich von dem Vorratsbehälter (101) mehrere Schneckenförderer (120,120',120'',120''', 120'''') etwa gleicher Länge derart erstrecken, daß beidseitig des Tauchrohres (117) die Gießhilfsmittelzufuhr in die Stranggießkokille (114) etwa gleichmäßig erfolgt.
- Vorrichtung nach einem der Ansprüche 1 bis 18, dadurch gekennzeichnet, daß der Vorratsbehälter (1) ein Wirbelbett (80) zur Fluidisierung des Gießhilfsmittels (19) aufweist.
- Vorrichtung nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet, daß die Vorrichtung eine Verlagerungseinrichtung (160) umfaßt, welche eine Verlagerung der Entnahmestelle (129) in und/oder quer zur Förderrichtung der Schneckenförderer (20,20';120,120',120'',120''', 120'''') erlaubt.
- Vorrichtung nach Anspruch 20, dadurch gekennzeichnet, daß die Verlagerungseinrichtung (160) mindestens einen ersten Linearversteller (161) umfaßt, welcher einen verlagerbaren Schlitten (162) aufweist, auf welchem der Vorratsbehälter (101) der Vorrichtung (200) montiert ist.
- Vorrichtung nach Anspruch 21, daduch gekennzeichnet, daß der erste Linearversteller (161) mit dem Schlitten (163) eines zweiten Linearverstellers (164) verbunden ist, dessen Verlagerungsachse (S) quer zur Verlagerungsachse (T) des ersten Linearverstellers (161) verläuft.
- Vorrichtung nach einem der Ansprüche 1 bis 22, dadurch gekennzeichnet, daß oberhalb des Vorratsbehälters (201) ein mit dessen Einfüllstutzen (203) kommunizierendes Kleinfördergerät (90) in an sich bekannter Bauart angeordnet ist, welches die Gießhilfsmittelzufuhr zum Vorratsbehälter (201) selbsttätig dem Bedarf anpaßt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9304946U | 1993-04-01 | ||
| DE9304946U DE9304946U1 (de) | 1993-04-01 | 1993-04-01 | Vorrichtung zur kontinuierlichen Zugabe von pulverförmigen Gießhilfsmittel auf den Badespiegel einer Schmelze in einer Stranggießkokille |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0624412A1 EP0624412A1 (de) | 1994-11-17 |
| EP0624412B1 true EP0624412B1 (de) | 1999-11-17 |
Family
ID=6891505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94104255A Expired - Lifetime EP0624412B1 (de) | 1993-04-01 | 1994-03-18 | Vorrichtung zur kontinuierlichen Zugabe von pulverförmigem und granuliertem Giesshilfsmittel auf den Badspiegel einer Schmelze in einer Stranggiesskokille |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0624412B1 (de) |
| AT (1) | ATE186665T1 (de) |
| DE (2) | DE9304946U1 (de) |
| DK (1) | DK0624412T3 (de) |
| ES (1) | ES2139029T3 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19748948C2 (de) * | 1997-10-24 | 2000-10-12 | Mannesmann Ag | Vorrichtung für die Zugabe von Gießpulver bei Stranggussanlagen |
| DE19919330A1 (de) * | 1999-04-28 | 2000-11-02 | Sms Demag Ag | Vorrichtung zum Einbringen von Gießhilfsmitteln in eine Stranggießkokille |
| DE19956059C2 (de) * | 1999-11-22 | 2002-03-14 | E S C H Engineering Service Ct | Verfahren zur Zuführung von Gießpulvergranulat zu einer Stranggußkokille |
| DE102007046261B3 (de) * | 2007-09-26 | 2009-04-30 | Mbl-Europe Gmbh | Gießerei-Flussmittel-Granulatverteiler |
| CN104001879B (zh) * | 2014-06-12 | 2017-01-04 | 北京科技大学 | 一种连续直通多孔材料的连铸设备与方法 |
| 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 |
| CN105903933B (zh) * | 2016-06-28 | 2018-01-02 | 广西长城机械股份有限公司 | 一种铸造用保温覆盖剂自动投放装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116367A (en) * | 1975-11-12 | 1978-09-26 | Nippon Steel Corporation | Apparatus for supplying powder to continuous casting mold |
| 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 |
| US4312399A (en) * | 1979-10-31 | 1982-01-26 | Shinagawa Refractories Co., Ltd. | Flux powder supplying apparatus for continuous casting |
| 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 |
| DE4022117A1 (de) * | 1990-07-11 | 1992-01-16 | Intocast Gmbh | Verfahren und vorrichtung zur kontinuierlichen zugabe von giesshilfsmitteln auf den spiegel einer schmelze in einer stranggiesskokille |
-
1993
- 1993-04-01 DE DE9304946U patent/DE9304946U1/de not_active Expired - Lifetime
-
1994
- 1994-03-18 ES ES94104255T patent/ES2139029T3/es not_active Expired - Lifetime
- 1994-03-18 EP EP94104255A patent/EP0624412B1/de not_active Expired - Lifetime
- 1994-03-18 DK DK94104255T patent/DK0624412T3/da active
- 1994-03-18 AT AT94104255T patent/ATE186665T1/de not_active IP Right Cessation
- 1994-03-18 DE DE59408925T patent/DE59408925D1/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE9304946U1 (de) | 1994-08-04 |
| EP0624412A1 (de) | 1994-11-17 |
| ES2139029T3 (es) | 2000-02-01 |
| DE59408925D1 (de) | 1999-12-23 |
| DK0624412T3 (da) | 2000-05-22 |
| ATE186665T1 (de) | 1999-12-15 |
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