EP1150790B1 - Tank for metallurgical purposes - Google Patents

Abstract

The invention relates to a vessel for metallurgical purposes intended for transporting molten metals. The tank has a metal jacket provided with a heat-proof lining. Two lifting lugs are disposed on the outer side opposite one another, each of which is supported by a lug shield connected to the metal jacket. The lug shield is disposed so as to limit movement in vertical and peripheral direction. Alternatively, the vessel can be made of sections of pipe, with the lug shield connected to a reinforcement ring on the pipe sections. Means are fixed on the metal jacket and/or the reinforcement ring(s) for receiving the own weight of the lug shield and the vessel when the vessel is in a vertical or tilted position.

Description

The invention relates to a vessel for metallurgical purposes for the transport of molten metals according to the preamble of claim 1 or 2.

Vessels for metallurgical purposes have been known for a long time (DE-AS 11 66 980, DE-PS 11 72 404, DE-AS 15 83 308, DE-AS 29 01 011). All constructions are common that the vessel has a heat-resistant lining Has metal jacket. On the metal jacket there are two on the outside opposing trunnions arranged on a stiffening support, support a bearing plate or a box structure, which in turn is firmly attached to the Metal jacket are connected. The metal sheath is predominantly with two axially Spaced circumferential stiffening rings reinforced, between which the end shield is attached. All are in terms of voltage known constructions are not optimally designed, so the ratio of Dead weight to fill weight is particularly unfavorable.

A further developed vessel for metallurgical purposes is from DE 197 06 056 C1 known. It consists of a heat-resistant lining individual tubular shots composed of metal sheath, the two in Circumferential direction and at an axial distance from each other in the metal jacket has integrated stiffening rings. There are two on the outside of the metal shell Support pins arranged opposite each other and by means of one with each Stiffening ring supported by a welded spigot. The pin shield is arranged between the two stiffening rings in such a way that it has a small radial distance from the metal jacket.

The problem with this construction is that the firm bond between The cone shield and stiffening rings generate high values in terms of voltage and in Connection area voltage peaks affecting the total load may occur. There may be no voltage reserves left Available so that there is a risk of plastic flow.

It is therefore an object of the invention to use a vessel for metallurgical purposes Filling contents from 80 t to 400 t, in particular a vessel with a circular Specify cross section, the stress distribution in the area of attachment of the Cone shield is cheaper in terms of the total load and the increased Has stress reserves against plastic deformation. In addition, that should Ratio of the own weight to the filling weight may be cheaper than previously known.

This task is based on the generic term in conjunction with the characteristics of characterizing part of claims 1 and 2 solved. Advantageous further training are the subject of subclaims.

Kem of the invention is the limited movable arrangement of the pin shield in vertically and in the circumferential direction, to accommodate the weight of the Cone shield and the vessel with the vessel in a vertical and tilted position Means are arranged on the metal jacket and / or on the stiffening rings. By this arrangement ensures that the relatively cold spigot shield Thermal expansion of the vessel is not hindered; the forces however over the means can be initiated. For example, the agent can serve as a cone shield Comprehensive box construction can be formed, within which the pin shield with Game is slidable. It doesn't matter whether the box construction is rectangular, round or oval. This comes in the storage position of the vessel Cone shield due to its own weight on the area in the 6 o'clock position the box construction to the system. If the vessel is raised, that comes Cone sign on the area of the box construction in the 12 o'clock position to the facility. If the vessel is tilted, for example, by 90 °, then the system takes place the cone shield in the 3 or 9 o'clock position of the box construction. Alternatively you can Instead of the box construction, provide clamp-like elements that the Border the edge areas of the cone shield. In terms of voltage technology, that's completely free cone shield optimal, since the warming vessel is vertical and can expand freely in the circumferential direction without hindrance. Depending on the size and Cross-sectional shape of the vessel, however, it may be cheaper to use a different type of Arrangement of the cone shield to choose. In particular, the transmitting forces must be taken into account. With such a solution, only one is respective stiffening ring facing edge area integrally with the Stiffening ring connected, this solution has the advantage that over the Cohesive connection large forces can be transmitted and the Unhindered expansion in the vertical direction is maintained because the opposite edge area is free. Depending on the design, you can achieve that the integral bond is so stiff that means for support the dead weight, especially when the vessel is in the tilted position can be. In other cases, one becomes a guide for the exempt Provide edge area.

The means can be webs which are guided in slots or guide handles in their Clearance of the edge area of the cone shield is performed or brackets guide the lateral areas of the free edge area of the cone shield. The means can be an integral part of the stiffening ring or by means of a Weld seam to be connected to the stiffening ring.

Preferably, one becomes the integral connection between the spigot and Provide a stiffening ring on the upper stiffening ring. To save on seam length, it is also proposed to use this edge area as a segment of the Form stiffening ring that with the adjacent segments of the Stiffening ring is integrally connected via a transverse seam, the Overall length is shorter than the longitudinal seam lying in the circumferential direction.

With a further simplification of the overall construction, the lower one Stiffening ring omitted. With this variant, too, the edge area of the Guide the cone shield or even do without it entirely. The leadership tools are comparable in design to the previously explained vessel construction. A A special feature is a circumferential ring that is integral with the edge area is connected to both cones. For good guidance between ring and Ensure metal sheath, are on the spigot or on the ring over the circumference distributed spacers arranged.

Figur 1a

einen Schnitt in Richtung A-A in Figur 1b

Figur 1b

eine Teilvorderansicht eines erfindungsgemäß ausgebildeten metallurgischen Gefäßes im Bereich des Zapfenschildes

Figur 1c

einen Schnitt in Richtung B-B in Figur 1b

Figur 2a-2c

wie Figur 1 a-c, aber eine zweite Ausführungsform

Figur 3a-3c

wie Figur 1a-c, aber eine dritte Ausführungsform

Figur 4a

einen Schnitt in Richtung B-B in Figur 4b

Figur 4b

wie Figur 1 b, aber eine vierte Ausführungsform

Figur 4c

einen Schnitt in Richtung A-A in Figur 4b

Figur 4d

einen Schnitt in Richtung C-C in Figur 4b

Figur 4e

eine vergrößerte Darstellung einer Variante des Details X

Figur 5a

einen Schnitt in Richtung A-A in Figur 5b

Figur 5b

wie Figur 1b, aber eine fünfte Ausführungsform

Figur 5c

einen Schnitt in Richtung C-C in Figur 5b

Figur 5d

einen Schnitt in Richtung B-B in Figur 5c

Figur 5e

einen Schnitt in Richtung D-D in Figur 5c

Figur 6a

einen Schnitt in Richtung A-A in Figur 6b

Figur 6b

wie Figur 1 b, aber eine sechste Ausführungsform

Figur 6c

einen Schnitt in Richtung B-B in Figur 6b

Figur 7a-c

eine Variante der Ausführungsform von Figur 6a-c

Figur 8a

einen Schnitt in Richtung A-A in Figur 8b

Figur 8b

wie Figur 1b, aber eine achte Ausführungsform

Figur 9a

einen Schnitt in Richtung A-A in Figur 9b

Figur 9b

wie Figur 1b, aber eine neunte Ausführungsform

Figur 9c

einen Schnitt in Richtung B-B in Figur 9b

Further features, advantages and details of the invention result from the following description of exemplary embodiments shown in a drawing. Show it:

Figure 1a

a section in the direction AA in Figure 1b

Figure 1b

a partial front view of a metallurgical vessel designed according to the invention in the region of the cone shield

Figure 1c

a section in the direction BB in Figure 1b

Figure 2a-2c

like Figure 1 ac, but a second embodiment

Figure 3a-3c

as Figure 1a-c, but a third embodiment

Figure 4a

a section in the direction BB in Figure 4b

Figure 4b

like Figure 1 b, but a fourth embodiment

Figure 4c

a section in the direction AA in Figure 4b

Figure 4d

a section in the direction CC in Figure 4b

Figure 4e

an enlarged view of a variant of the detail X

Figure 5a

a section in the direction AA in Figure 5b

Figure 5b

as Figure 1b, but a fifth embodiment

Figure 5c

a section in the direction CC in Figure 5b

Figure 5d

a section in the direction BB in Figure 5c

Figure 5e

a section in the direction DD in Figure 5c

Figure 6a

a section in the direction AA in Figure 6b

Figure 6b

like Figure 1 b, but a sixth embodiment

Figure 6c

a section in the direction BB in Figure 6b

Figure 7a-c

a variant of the embodiment of Figure 6a-c

Figure 8a

a section in the direction AA in Figure 8b

Figure 8b

like Figure 1b, but an eighth embodiment

Figure 9a

a section in the direction AA in Figure 9b

Figure 9b

like Figure 1b, but a ninth embodiment

Figure 9c

a section in the direction BB in Figure 9b

Figure 1a - 1c shows a view and two sections of a first embodiment a metallurgical vessel designed according to the invention. The the Refractory lining receiving metal jacket has in this embodiment three tubular shots 1,2,3, between which an integral part Upper stiffening ring 4 and a lower stiffening ring 5 are arranged. Weak the integral connection of the two stiffening rings 4, 5 is indicated by means of all-round welds 6-9. According to the pin 10 is between two stiffening rings 4.5 without hindrance both in vertical and in Arranged circumferential direction. The dead weight of the tenon plate 10 including the pin 11 welded into it is in the vertical position of the vessel a web 12 arranged on the lower stiffening ring 5 is caught. This footbridge 12 engages in an arranged in the lower edge region of the pin shield 10 Recess 13, so that even when the vessel is in the tilted position Pin shield 10 and the vessel on the respective narrow side of the web 12 can support. A comparable one is in the upper edge region of the pin shield 10 Recess 14 arranged. A web-like engages in this recess 14 Continuation 15 of the upper stiffening ring 4. In this embodiment this continuation 15 integral part of the stiffening ring 4. But it could as well, as shown in the lower section, as a separate part on the stiffening ring be attached.

So that the web 12 arranged below has sufficient rigidity, it is provided on the right and left with arm-like extensions 16, 17.

The assembly is now carried out in such a way that after creating the metal jacket 1-3 including the two welded stiffening rings 4,5 the respective Pin shield 10 including the pin 11 welded therein from below onto the web-like continuation 15 of the upper stiffening ring 4 pushed and in this Position is adjusted. The lower web 12 is then inserted into the recess 13 from below inserted and cohesively connected to the lower stiffening ring 5.

The advantage of this embodiment can be seen in the fact that the pin shield 10 in is vertically and circumferentially displaceable, so that the thermal expansion the vessel is not hindered. The dead weight of the Pin shield 10 together with the pin 11 and that of the vessel in vertical and tilted position of the vessel. Complementary is still on it to point out that, in a known manner, the pin shield 10 is at a distance 18 from Has metal jacket section 2. This prevents the one from being higher Metal jacket section 2 with temperature in direct contact with the colder one Pin shield 10 is. From a thermal point of view, it is known that the Heat flow due to radiation is proportional to the 4th power of the temperature difference, while the heat flow via the line is directly proportional to the temperature difference.

In Figures 2a-2c, a second embodiment is shown, with the same parts the same reference numerals have been used. In contrast to Figure 1a-1c that is Pin shield 20 with the upper stiffening ring 21 integrally by means of a partially circumferential seam 22 connected. For this purpose, the upper stiffening ring 21 in known manner on a downwardly extending nose-like extension 23. The lower edge region of the pin shield 20, which is designed as a web 24, is free movable and lies in sliding contact on the surface of the lower one Stiffening ring 5. Depending on the design of the attachment of the top Edge region of the pin shield 20 can, as shown here, on a Do not guide the cone shield 20. This means that both the forces that try to bend the cone shield 20 away from the vessel as well as its own weight of the cone shield and that of the vessel with the vessel in the tilted position the overhead weld 22 must be caught.

It is advantageous in this embodiment that, compared to the exemplary embodiment in Figure 1a-1c dispenses with the complex manufacture of the two recesses can also be large pan weights with the upper attachment are transferable. The disadvantage is that the unimpeded expansion possibility in Circumferential direction is restricted. Seen in the vertical direction, however, this remains fully preserved. In order to avoid voltage jumps and voltage accumulations as much as possible avoid the transitions 25, 26 from the upper edge region of the pin shield 20 strongly rounded in the middle and lower area.

A third embodiment is shown in FIGS. 3a-3c, elements of Embodiment according to Figure 1a - 1c with elements of the embodiment according to Figure 2a - 2c have been combined. The upper edge area of the pin shield 30 is integral with the upper stiffening ring 21 by means of a weld seam 22 connected. A guide element 19 designed as a circular disk engages both in one arranged in the lower edge region of the pin shield 30 Recess 13 and in a recess of the web 12, the bottom Stiffening ring 5 is attached. This ensures that the bottom guide does Dead weight of the spigot plate 30 and the weight of the container in vertical and can catch the tilted position of the vessel.

According to the representation in FIGS. 4a-4e, one can catch the dead weight detach from the cone shield and vessel in a different way. The lower edge area of the Pin shield 40 formed as a web 28. The associated lower stiffening ring 27 has an upwardly extending web-like extension 29, which is more integral Is part of the stiffening ring 27. The two web-like areas 28, 29 lie in contact with each other. Extend through both in this Embodiment two openings 31, 31 ', 32, 32' lying in alignment. Preferably are designed as bores. In the openings 31, 31 ', 32, 32' Holding elements 33, 33 ', preferably pins can be inserted. So that the unhindered Movement for the spigot plate 40 is maintained in the vertical direction, have the in Web 28 of the pin shield 40 arranged openings 32, 32 'a larger Diameter 37 on. In partial image e, which represents a modification of detail X, can you can see this well. In contrast to partial image a, the web 29 is not more integral Part of the lower stiffening ring 27, but via a weld seam 34 cohesively connected to this. The inserted pin 33 to intercept the Dead weight of the pin shield 40 or the vessel is in the opening 31 of the Web 29 fastened by means of a circular seam 35. The opening 32 in the web-like trained edge region 28 of the pin shield 40 has a larger Diameter 37 as the diameter 36 of the bolt.

In the exemplary embodiments according to the representations in FIGS. 2a-2c and 3a-3c the upper edge area of the respective cone shield 20, 30 by means of a seam 22 with the nose-like continuation 23 of the circumferential upper stiffening ring 21st connected. In contrast to this, in the embodiment according to FIGS. 4a-4e separate sub-segment 38 formed by means of a weld 39 with the upper Edge region of the pin shield 40 is connected. This element is formed in a corresponding gap between the ends of the circumferential stiffening ring 21 inserted and connected to one another via transverse seams 41, 41 '. Is comparable the opposite area is also formed. Here too the leadership is as separate part formed with a partial segment of a stiffening ring 27 and a web 29 which extends upwards. This separate part is joined with Cross seams 42, 42 'in a corresponding gap between segments of the circumferential lower stiffening ring 5 used and integrally therewith connected.

This idea is continued in the exemplary embodiment according to the figures 5a-5e show a construction in which the pin shield 50 together with the upper one Area forms a single part. This part is with cross seams 41, 41 'with the Adjacent sub-segments of the circumferential stiffening ring 21 integrally connected. The advantage of this arrangement is that instead of the long one circumferential weld here only two relatively short transverse seams for fastening are needed. The guide of the cone shield 50 takes place here in a different way and way. For this purpose, 5 clamps 43, 43 'are arranged on the lower stiffening ring, which comprise the web-like end region 28 of the pin shield 50. in the Partial image e is shown as the left-hand bracket 43 over weld seams 44, 44 ' is connected to the lower stiffening ring 5. Both clamps 43, 43 'point an angularly formed end region 45, 45 ', which is a distance 46, 46' to Web 28 has.

A further embodiment is shown in FIGS. 6a-c. In contrast to The embodiment according to FIGS. 2a-c, the pipe section 2 does not have a lower one Reinforcement ring 5. To guide the pin shield 20 is at the level of the web 24 a guide plate 47 attached to a sword 48 of the shot 2. at The thermal expansion of the vessel slides along the web 24 of the pin shield 20 the inside of the upper area of the guide plate 47.

FIGS. 7a-c show a variant of the embodiment according to FIGS. 6a-c. Also this embodiment is characterized by the elimination of the lower one Stiffening ring 5 in the tubular shot 2. Instead of a guide plate is used this embodiment, the web 24 of the pin shield 20 by two on the shot 2 attached clips 49,49 'at the ends. To guide the web 24 of the Pin shield 20 along the bracket 49,49 'are on both sides in the gap between the outside of the web 24 and the inside of the clamps 49, 49 'so-called Lining plates 51.51 'driven.

An eighth embodiment is shown in FIGS. 8a, 8b. It is similar to that in Figure 6 and 7 embodiment shown in such a way that in the shot 2 no lower Reinforcement ring 5 is arranged. In contrast to the two mentioned In this embodiment, the pin shield 60 has no embodiments Leadership on. The required stiffening is achieved by the lower Area 52 of the spigot plate 60 is formed in the shape of a circular arc in plan view. In In this embodiment, the upper edge region of the pin shield 60 is by means of a seam 22 with the nose-like continuation of the circumferential upper Stiffening ring 21 connected. Comparable as shown in Figures 5a - 5e, Alternatively, the upper area of the pin shield 60 together with the associated one Section of the upper stiffening ring 21 may be formed as one part. This way formed part is with short transverse seams with the adjacent sub-segments of the circumferential stiffening ring 21 integrally connected. The advantage of such The arrangement can be seen in that instead of the long circumferential weld seam 22 here only two relatively short cross seams are required for attachment.

Another exemplary embodiment is shown in FIGS. 9a-c. The special Characteristic of this embodiment is the arrangement of a stiffening encircling ring 53. This ring 53 is by means of a circular seam 54 on the web 24th of the cone shield 20 attached. To guide the ring 53 relative to the shot 2 are distributed at certain intervals over the circumference on the inside of the Shield 20 or the ring 53 spacer 55 attached.

LIST OF REFERENCE NUMBERS

No.

description

1,2,3

tubular shot

4

upper stiffening ring

5

lower stiffening ring

6-9

Weld

10

trunnion plate

11

spigot

12

web

13.14

recess

15

bridge-like continuation

16.17

arm-like extension

18

distance

19

guide element

20

trunnion plate

21

upper stiffening ring

22

Weld

23

nose-like continuation

24

web

25.26

crossing

27

lower stiffening ring

28

web

29

bridge-like continuation

30

trunnion plate

31.31 '32.32'

opening

33.33 '

retaining element

34

Weld

35

circumferential weld

36

diameter

37

diameter

38

subsegment

39

Weld

40

trunnion plate

41.41 '

Quemaht

42.42 '

Quemaht

43.43 '

clip

44.44 '

Weld

45.45 '

end

46.46 '

distance

47

guide plate

48

sword

49.49 '

clip

50

trunnion plate

51.51 '

Futterblech

52

lower area of the cone shield

53

encircling ring

54

circumferential weld

55

spacer

60

trunnion plate

Claims (26)

1. Container for metallurgical purposes such as the transport of molten metals, having a refractory-lined metal casing on which two supporting trunnions are arranged opposite one another on the outside, each being supported by a trunnion plate attached to the metal casing,
   characterised in that
   the trunnion plate is arranged so that it can move to a limited extent in the vertical and circumferential directions, and means are attached to the metal casing to support the dead weight of the trunnion plate and the container when the latter is in its vertical and tilted positions.
2. Container for metallurgical purposes such as the transport of molten metals, having a refractory-lined metal casing consisting of individual, tubular sections and comprising two stiffening rings that extend in the circumferential direction and are integrated in the metal casing an axial distance apart from one another, and on which two supporting trunnions are arranged opposite one another on the outside, each trunnion being supported by a trunnion plate attached to the stiffening rings, such that the trunnion plate is radially a small distance away from the metal casing,
   characterised in that
   the trunnion plate (10) is arranged so that it can move to a limited extent in the vertical and circumferential directions and means are attached to the metal casing (1 - 3) and/or to the stiffening rings (4, 5) to support the dead weight of the trunnion plate (10) and the container when the latter is in its vertical and tilted positions.
3. Container according to Claims 1 or 2,
   characterised in that
   the said means are in the form of a box structure around the trunion plate (10), within which the trunnion plate (10) can move to a limited extent.
4. Container according to Claims 1 or 2,
   characterised in that
   the said means are formed as bracket-like elements (43, 43') that enclose the edge area of the web of the trunnion plate (10).
5. Container according to Claim 2,
   characterised in that
   only one of the edge areas of the trunnion plate (20, 30, 40, 50, 60) facing the respective stiffening ring (21) is attached with material continuity to the stiffening ring (21).
6. Container according to Claim 5,
   characterised in that
   the opposite, free edge area of the trunnion plate (20, 30, 40, 50) is guided in the vertical direction by means arranged on the stiffening ring (5, 27).
7. Container according to Claim 6,
   characterised in that
   the said means are an integral part of the stiffening ring.
8. Container according to Claim 6,
   characterised in that
   the said means (12) are formed separately and are attached to the stiffening ring (5) by a weld seam.
9. Container according to Claims 6 to 8,
   characterised in that
   the said means are arranged on the lower stiffening ring (5,27).
10. Container according to Claims 6 to 9,
    characterised in that
    in the area of the trunnion plate (10, 30) the stiffening ring (5) has a lip-like web (12) directed upwards, which engages in a form-enclosed way in a recess (13) formed along the underside of the free edge area of the trunnion plate (10, 30).
11. Container according to Claims 6 to 9,
    characterised in that
    on the stiffening ring in the area of the trunnion plate is attached a stirrup-like grip that is positioned circumferentially, in whose clear space open towards the top and bottom the free edge area of the trunnion plate formed as a web engages.
12. Container according to Claims 6 to 9,
    characterised in that
    on the stiffening ring (5) in the area of the trunnion plate (50) is attached at least one guiding bracket (43, 43'), in which the end area of the web (28) of the trunnion plate (50) positioned in the circumferential direction engages.
13. Container according to Claim 12,
    characterised in that
    viewed in cross-section, the guiding bracket has a slot-like recess facing the edge area of the web of the trunnion plate.
14. Container according to Claim 12,
    characterised in that
    viewed in cross-section, the guiding bracket (43, 43') is formed as an angle-piece (45, 45') and sliding contact with the edge area of the trunnion plate (50) takes place only over an outer surface area.
15. Container according to Claims 6 to 9,
    characterised in that
    in the area of the trunnion plate (40) the stiffening ring (27) has a lip-like web (29) and an outer surface area of the also web-like free edge area (28) of the trunnion plate (40) comes into sliding contact with an inside surface area of the web (29) of the stiffening ring (27).
16. Container according to Claim 15,
    characterised in that
    both the web (29) of the stiffening ring (27) and the web (28) of the free edge area have at least one mutually aligned opening (31, 31', 32, 32') through which a holding element (33, 33') can be inserted with some clearance.
17. Container according to Claim 16,
    characterised in that
    the holding element (33, 33') is fixed in the opening (31, 31') of the web (29) of the stiffening ring (27) by means of a weld seam (35).
18. Container according to Claims 5 to 17,
    characterised in that
    the edge area (38) of the trunnion plate (40) joined with material continuity forms a segment of the stiffening ring (21), which is joined with material continuity to the adjacent segments of the stiffening ring (21) by means of transverse seams (41, 41').
19. Container according to Claim 18,
    characterised in that
    the edge area of the trunnion plate (50) formed as the stiffening ring is integrated in the trunnion plate (50) and is joined with material continuity to the adjacent segments of the stiffening ring (21) by means of transverse seams (41, 41').
20. Container according to Claim 2,
    characterised in that
    the lower stiffening ring (5) is omitted, the trunnion plate (20) is joined with material continuity to the upper stiffening ring (21) and the web (24) of the trunnion plate (20) is in contact with means that prevent radial deflection.
21. Container according to Claim 20,
    characterised in that
    the said means consist of a guiding plate (47) attached to a vertical batten (48) arranged on the metal casing (2) and the free inside of the guiding plate (47) is in sliding contact with the free outside of the web (24) of the trunnion plate (20).
22. Container according to Claim 20,
    characterised in that
    the said means consist of an angled bracket (49, 49') attached to the metal casing (2), which encloses the end area of the web (24) of the trunnion plate (20).
23. Container according to Claim 20,
    characterised in that
    the said means consist of a ring (53) around the metal casing (2), which is joined with material continuity to the web (24) of the two trunnion plates (20, 20').
24. Container according to Claim 23,
    characterised in that
    to the trunnion plate (20, 20') or the ring (53), and distributed around the circumference, are attached spacers (55) which bridge the gap between the metal casing (2) and the ring (53).
25. Container according to Claim 2,
    characterised in that
    the lower stiffening ring (5) is omitted and the trunnion plate (60) is attached with material continuity, without guiding, only to the upper stiffening ring (21).
26. Container according to Claim 25,
    characterised in that
    the lower edge area (52) of the trunnion plate is in the shape of a circular arc when viewed from above.

Images