DE2010743C - Intermediate container for continuous casting molds - Google Patents

Description

carry. as is well known, the associated pouring nozzle of the intermediate

6. Intermediate container according to Claim 1, the container is closed immediately, the characterized by welded joints between the steel in the area of this pouring nozzle freezes see the cylindrical casing pipes (4, 5) and and only by destroying the lining from the the container jacket (10). Intermediate container is removable. Same effect

7. intermediate container according to claim 1, characterized also occurs if the steel is accidentally too cold characterized in that the halves of the container man, 30 is delivered or if by breaking out of means (19) and the casing pipes (4,5) made of cast steel parts of the lining of the intermediate container or gray cast iron are made. Nozzles clogged, so that a normal continuous casting

is no longer feasible and so is steel

freezes. In these cases the intermediate containers

Very cleaned with total destruction of the lining

and be redelivered.

The invention relates to an intermediate container for To simplify the new lining of continuous casting molds of multi-strand casting systems for channels, one is therefore also with a known casting system Casting of steel and steel alloys, which device according to the Austrian patent specification from a pipe container that can be separated along the c'.ner level, the pouring channel made of mehter consists of building up several units which can be lined up one after the other in the number of molds Talking refractory insert bodies are used. can be adapted to the respective requirements Continuous casting of steel is more normal. The main pouring channel is partially through a in such a way that the molten steel from the fusible tubular frame with refractory insert bodies Furnaces are drained into ladles, these pouring 65 are formed on the main pouring channel are of length pans by means of cranes or rails over the strand after at intervals formed spouts, which also casting plant are moved and the steel melt is equipped with a refractory lining, There in so-called chutes, distribution channels or such a device was especially designed for

Casting of special large-block formats of the intermediate container according to the invention thereby strike in such a way because the chill molds with melt are fold and cost-saving that between the two from acnae they can be charged by several casts at the same time; moth existing inlay bodies and the oenaucr it is also suitable for multiple loading. The relining of this 5 is known. _n . _f .

The pouring device is undoubtedly characterized by the separating The fireclay floors of the individual oieütopre u «

The inclined pouring channel makes it easier to use the intermediate container with the ^Scna 5 ¹ ? ^t ^ ^r0 "™ appears in view of the need to be firmly or releasably connected this lengthways: oe gutter with a fireproof insert nevertheless time-rough dividing plane, be divided into two, while dci verm .. bend and expensive. construction of a detachable fireclay floor of this unified.g

From a communication in »Foundry Practice« it can be shown. Flvre

In addition, a device for electrical construction This construction of the along a vertical tiDcn

Heating the cupola iron in the tapping chute made the refractory inserts presented for the first time during the 35th ^{international} foundry congress in Kyoto in 1968 This device consists of two refractory lining systems connected to the creation of an intermediate container door to the Siemens Sillimanitrohr, which are located in relatively a 'dier and jM-n chambers several interchangeability of the connecting the chambers due to the extensive utilization of scnaraouc silimanite pipe can be delivered from this reference, however, nothing can be inferred

Finally, you have shown for the casting of aluminum the drawing Ausfuhrungsbeispiei Linium • already proposed a device will be explained a ₅ xiäher In the drawing (see FIG. 1 shows Herrmann "Manual of continuous casting *" Bud F i g. A Mittellängsschn.tt by an «ertm

! 065 on page 319), in which wide intermediate container with three Gi ^ UjPten. protruding metal supply pipes are provided, FIG. 2 a plan view of the wiscnenbenaner

through a common horizontal channel according to FIG. 1,. . ...

are connected to each other. To overflow the 30 fig. 3 to prevent a section along the line 111-111 adjacent molds under the pressure of FIG. 2 and FIG. 1 of the column of molten aluminum, FIG. 4 a detailed section of the lh 1 for the space above the pouring level of the molds and 2 shown right-hand saucepan according to the section through a chamber sealed airtight and under line IV-IV in F 1 g. 2. _hmie , iv »<: fphtder kept a sufficient overpressure. This 35 As from calculations a. «Rsel en *. ^ ^E ™ £ overpressure enables the pouring from the wide, intended intermediate containers made of rmem ^ J« 1 metal feed pipes, without these pipes being tapered or tapered in the drical pouring pots 1, 2 and 3 "^ remaining JetoM ^ pouring area with a base with a regu- lar jacket 10, the pourable pouring nozzle giving the pouring pots having to be provided with the container jacket 10 through zy of the single-cylindrical May \ tc.rohren 4 and see above-described type, which does not have the disadvantages of the individual pouring pots 1, Z and s parts of known pouring channels and the binding cylindrical ϊχ after each casting simple, cost-saving and short- three pouring pots 1, 2 and and prepared for the next pour 45 -'— · "« - * v ^ h.nH ,, ™

According to FX, this goal is achieved with a strands lying next to one another

Small containers of the type described are achieved by using a suitable system, with ^d £ «" i ^ e ^

that the refractory insert body as a cylindrical nozzle 14 in the under ^the . ^Zw 'f _r ^. ™

Pouring pots made from a firebrick tube and a bowl _: not shown in the drawing

moths are formed, which is cast by the continuous caster: cylindrical

Fireclay tubes are connected together, whereby the three acnsen A ^ß · ^C * '^ Α ^

the axes of the individual pouring pots and the cylindrical as well as the axes DE of the ^ d.ese Potfe ^ ro

see fireclay pipes in a vertical plane the cylindrical _f jacket pipes fShegen j how one

S Ä SÄng of such a »two- in a simple way through in ^^ ^ £

shell «intermediate container is possible 60 strengthening nanschen 15,16 ™ * ^ ™ _Ί ™ Nahrungsmittel% _Α ° _η .

lent that the container can be easily inserted into two elongated holes ai £ ^ e.sen, uiwelche f ™ *? ™ ⁿ ™ _a .

Halves is separable. For easy connection and pressing of the two halves I, 11 together

Way, that is, with a hammer, can be detached and reconnected after rei- ^^^ SSStS ^ OieSSen M by means of inclination of the intermediate container. openings ™ ⁸ ^ J JfLJJ ^ T ¹ 12 closed On the other hand, the new lining of the disc-shaped fireclay floor and

are. Both the space between each 24 is welded, by means of which a Schwenkban

Fireclay tube 8 and the Bchältmanlel 10 as well as storage of the intermediate container halves is possible

the space between the watering pots with the new lining or repair of the described

the connecting cylindrical firebrick tube bcncn intermediate container is now as follows

rcn 19 and the jacket pipes 5 and 4 is with quartz 5 in front of it: For the new lining you need for the

sand 9 filled in. Intermediate containers shown in the drawings

The receptacle carrying the fireclay floors 12 - a total of three fireclay pipes 8, which are used to form the fireclay

Bottom 11 are cylindrical pouring pots 1, 2 and 3 are provided in the present embodiment

welded to the container jacket 10. To a total of two of these fireclay tubes 8, in the present

Separation of the intermediate container into the halves in the case of the two outer fireclay pipes

and Π to enable these floors along the must each with a jacket opening 21 to accommodate

Parting plane X in two halves 11 α and 11 Λ on the ends of the connecting cylindrical chamotte '

Splits. tubes 19 be equipped. The third pubic tube f

Regardless of the design of the container boom for the middle pouring pot 2, however, must with ins

11, the fireclay floors 12 can have a total of two opposing jacket openings 21 from 15

a prefabricated fireclay or from a fire to accommodate the two free ends of the conn

solid hardened ramming material be formed. Equipped with cylindrical chamotte tubes 19

at one will be to facilitate observation of the. Furthermore, a total of

Metal level in the mold, the pouring nozzles 14 always together with two of the above-mentioned cylindrical shells

on the side of the »o motterohrc 19 facing the operating side, three fireclay floors 12 and three

Arrange intermediate container. The in a known manner perforated stones 13 with Zirkondüscn 14 and a corresponding

made of zirconium pouring nozzles 14 sit, how to get chende amount of quartz sand to fill the

particularly good from FIG. 4 recognizes in a four-space gap between the container assembly 11

angular perforated brick 13. and the refractory insert bodies are required. Closing

The jacket pipes 4.5 between the casting pots 1, as borrowed must no'H a refractory casting compound for the

2,3 are, as can be seen particularly from FIG. 1 recognizes the position of the upper edge finishes 13 as well as for you

arranged in the lower area of the pouring pots. The filling of the joints 22 between the circumference there

means that after the sprue from the ladle pipe ends of the fireclay pipes 19 and the inside

first of all a certain amount of steel in the central pouring area of the jacket openings21 of the fireclay tubes

Pot 2 must be present before the liquid steel 30 for the cylindrical pouring pots 1, 2 and 3 is available

be through the passages 28,29 of the fireclay tubes 19 in.

the outside pouring pots 1.3 can flow. Before connecting the two halves I, II of the

by an undesirable clogging of the Pas intermediate container, the fireclay tubes 19 ir

say 28 and 29 avoided, which in the case of a deeper one, the jacket openings 21 of the chamotte tubes 8

Arrangement of the Schamottcrohre 19 possibly 35 leads, which is expediently bereib

as a result of too low a temperature in the middle in one half of the intermediate container

empty pot caused the first amount of steel cast net. Then the second half is sent to the

could be. first half moved and by means of the bolt

To stiffen the intermediate container, such as wedge connection 6.7, are firmly connected to the first half

one can particularly well from the section according to FIG. 3 40 bundcn. This is followed by further work such as

can be seen, vertical reinforcement flanges 15, the central alignment of the insert body 8 and 19,

16 and horizontal reinforcement flanges 17, 18 before pouring in quartz sand and cementing dei

seen. While the horizontal reinforcement joints 22 and 23. If the firebrick floors 12

Flanges 17, 18 can be formed in one piece and consist of prefabricated parts, the same are already

with their ends on the container jacket 10 of the one 45 inserted before the assembly of the two halves

Zelncn pouring pots 1,2,3 are welded, the cementing of the perforated stones 13 with the zirconium nozzles

the vertical reinforcement flanges 15, 16 in two can then be made.

Flange halves 15 a, 15 Λ or 16 a, 16 b split The main advantage of being in between according to the invention. As with the vertical reinforcement flanges 15, 16, this is due to the low expenditure of time, which must also apply to the one shown in FIG. 3 cut jacket pipe 5 50 an overhaul or replacement of a consumption in two halves 5 a divided along the parting plane X, th intermediate container must be applied. Wäh-5 b be separated. Even the four halves of the lining that must be laboriously knocked out of the container jacket 10 of the adjacent casting are carried out in known intermediate containers - such as kalen reinforcing flanges 15, 16 are described with their ends or 3 of the intermediate container welded on 55 according to the intermediate container considerably as follows

To get a clean upper end between the simple: one loosens the Boizen-Keüverbindiuigen 6,7, The container jacket 1 · and the chamotte ears 8 underneath, the halves I, II are removed from one another, with the simultaneous bridging of the quartz sand cover needed Schamolterohreinsäfee 8 and 19 as well as the To enable device 9, have the pots 1, bottoms 12 fall out automatically. The Schamottcrohrc 8 inserted around the Ein-2, 3, a lower 60 salts poured quartz sand 9 enables a Height than the container jacket 10. In the resulting practically resistance-free detachment of the fireclay annular gap between the upper end of each shear tube. By using commercially available Molterohres8 and the container 10 is a connection gußmasse23 to the refractory material to the outside and for the perforated bricks 13 and nozzles 14 can be Introduced in an ascending manner. 65 the new addition as described above after development

Closures are attached to the lower vertical reinforcement of the used lining in simple egg kungsflanscfaen 16 bearing blocks 20 with one bolt each way cheap and toe-saving.

1 sheet of drawings

*? ■ -K

Claims (5)

1 2 n ... also called distributor, dosed intermediate container claims: is drained. The plug of the casting 1. Intermediate container for continuous casting molds from the pan opened to the extent that the mirror of the metal multi-strand caster for the casting of steel melt in the intermediate container always on about the and steel alloys, which remains from a longitudinally same level, while the steel from the a level separable tubular container consists, pouring nozzles of the intermediate container in the leg below several sensitive molds corresponding to the number of molds are cast. This is dii fire-proof Insert bodies are used, d a - speed of passage of the melt from the intermediate passage characterized that the fire container at the lowering speed of the strands solid insert body adapted as cylindrical pouring pots io. (1,2,3) from a firebrick tube (8) and one due to the strong corrosive properties Fireclay floors (12) are formed by the molten steel it is necessary to make the lining Cylindrical fireclay tubes (19) merge with one another of the intermediate container after one or only are bound, with the axes of the individual few potted batches to be renewed. The work Pouring pots (1,2,3) and the cylindrical shell 15 of the relining of a used container is Tnotterohre (19) in a vertical plane (AT) time-consuming and the consumption of refractory slopes, along this the container can be separated and refractory mortar considerably, so that after IM, and that the connecting cylindrical scha means and ways were sought to both Mothed ears (19) in appropriate mantle openings, material- and wage-intensive relining (21) to reduce the price of the fireclay pipes (8) in the pouring pots ao used intermediate container, intervention. In addition to at least after a certain number 2. Intermediate container according to claim 1, there being castings that are repeatedly necessary characterized in that between the relining of the intermediate container are after each Fireclay existing inlay bodies (8,19) individual batch repair work required, u ^ and to mend the container jacket (10) an intermediate »5 places which are caused by thermal stressi ^ Layer of quartz sand (9) is provided and cracked during operation. Thereby c .- 3. Intermediate container according to claim 1, characterized behind the lining penetrated, now c> marked, caß the pouring nozzles (14) on the rigid metal with the surrounding area facing the operator side: bottom half of the lining material knocked out and dry; Pouring pots (1,2,3) are arranged. 30 new lining material must be replaced. Even K 4. Intermediate container after using refractory hardening Stamru Proverbs 1 to 3, characterized in that the masses need this repair work a never ί the casting pots (1,2,3) connecting the cylindrical insignificant time, since the intermediate container is not un-fireclay tubes (19) in the lower area of the casting immediately after the repair work has been carried out; η pots arranged and to stiffen the intermediate 35 is usable again, since the refractory mass he t vertical and horizontal reinforcement has to dry and harden again. Kungsflansche (15, 16 or 17, 18) provided The destruction described in the Auskl'-i are. manure are particularly evident in long launders fu; 5. Intermediate container after one of the multi-line systems, the length of which is at least dei Proverbs 1 to 4, characterized in that the 40 width of all juxtaposed casting lower vertical reinforcement flanges (16) must correspond to strands, as this is particularly strong Position blocks (24) occur for a relative pivoting thermal stresses. of the two separable intermediate container halves.