EP2935634A1 - Fastening system for tiltable metallurgical treatment vessels - Google Patents
Fastening system for tiltable metallurgical treatment vesselsInfo
- Publication number
- EP2935634A1 EP2935634A1 EP13807991.8A EP13807991A EP2935634A1 EP 2935634 A1 EP2935634 A1 EP 2935634A1 EP 13807991 A EP13807991 A EP 13807991A EP 2935634 A1 EP2935634 A1 EP 2935634A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fastening system
- support ring
- treatment vessel
- slot
- load
- 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
Links
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4633—Supporting means
- C21C5/464—Trunnion bearings
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/50—Tilting mechanisms for converters
Definitions
- the invention relates to a mounting system for tiltable metallurgical
- Treatment vessels according to the preamble of claim 1, and a treatment vessel suitable therefor.
- a converter is a tiltable metallurgical
- Treatment vessel in which liquid metals and metal alloys are manufactured and treated.
- a converter is exposed during operation to high thermal loads, which can lead to thermal expansion. Accordingly, a converter is mounted at a predetermined distance on a surrounding support ring.
- Suspension ring is mounted. With the suspension of the slats, a thermal expansion of the treatment vessel in the radial direction is possible.
- circumferential supports of the treatment vessel are provided on an upper side of the support ring, which are fitted without play between abutments on the support ring in the circumferential direction. This allows the treatment vessel in a tilted position, i. be supported at a pivoting of the support ring.
- a possible relative movement between the circumferential supports and the abutments allows a thermal expansion of the treatment vessel in the radial and axial directions.
- the disadvantage is that the perimeter supports are not particularly protect against slag ejection from the converter mouth. If soiled, e.g. by slag can the
- Relative movement between perimeter supports and abutments at least
- the invention has for its object to provide a fastening system for tiltable metallurgical treatment vessels and a suitable treatment vessel, the fastening system is protected by simple and robust means against possible contamination and therefore thermal expansion of the treatment vessel are reliably guaranteed.
- the fastening system is suitable for tiltable metallurgical treatment vessels, in particular converters, and comprises a support ring having two diametrically opposed tilting pins, wherein a treatment vessel with a plurality of connecting elements can be attached to the support ring.
- the fastening system further comprises retaining means, which are attachable to an outer side of the treatment vessel, and guide means, which are formed on the support ring and cooperate with the holding means to divert tilting forces from the treatment vessel to the support ring. Both the holding means and the guide means are each arranged on an underside of the support ring.
- the invention is based on the essential knowledge that by a
- Guiding means on an underside of the support ring these means are "automatic” because due to design, against pollution z. B. protected by Schlackeausorulfe, from the top of an opening of the treatment vessel to a
- the interaction of the holding means with the guide means is configured such that as a result of thermal expansion of the treatment vessel, a movement of the holding means relative to the guide means in both the vertical upward and downward and along an axis which points radially towards a center of the treatment vessel , maintenance-free is possible. Since the holding means and the guide means as explained against a
- the holding means comprise a vertically upwardly directed load bolt which engages in the guide means in the form of an elongated hole formed on the underside of the support ring.
- Guide means is maintenance-free and provides in a robust manner the just described mobility of the holding means in the vertical and radial directions. Furthermore, this gives the advantages of easy accessibility and installation options.
- Vertical axis is arranged vertically, the longitudinal axis of the elongated hole extends horizontally and perpendicular to a tilt axis of the treatment vessel.
- the load pin in a vertical operating position of the treatment vessel, is positioned substantially centrally within the elongated hole with respect to its longitudinal axis.
- Treatment vessel has substantially ambient temperature.
- a treatment vessel in particular in the form of a converter, is furthermore provided, holding means being mounted on an outer side of the treatment vessel and cooperating with guide means of the above-described fastening system.
- FIG. 1 shows an inventive fastening system in connection with a treatment vessel in the form of a converter, which is arranged in a vertical operating position
- FIG. 2 shows the fastening system in a sectional view along the line A - A of FIG. 1,
- FIG. 3 shows the fastening system in a sectional view along the line B-B of FIG. 2
- 4 shows the fastening system in a view from below from the direction of the arrow D of FIG. 1, FIG.
- FIG. 5 shows the fastening system according to an alternative embodiment in a sectional view along the line B-B of Figure 2
- Figure 6 shows the fastening system in a sectional view taken along the line C- C of Figure 5.
- Fig. 1 shows the fastening system 1 according to the invention in connection with a treatment vessel 2 in the form of a converter.
- the treatment vessel 2 is suitable for the production and treatment of liquid metals and metal alloys and is referred to simplifying as a converter, without being limited thereto.
- the converter 2 is surrounded by a support ring 3 at a distance a.
- Fig. 2 which shows a sectional view along the line A-A of Fig. 1, illustrates that the support ring 3 has a box-shaped cross-section and is positioned at the distance a from a wall of the converter 2.
- FIG. 1 For receiving the tilting pins 4 in the support ring 3 are shown in FIG. 2 therein openings 5, 6 are formed.
- the converter 2 is attached to the support ring 3 via a plurality of connecting elements 7.
- the connecting elements 7 are in the form of lamellae, wherein the converter 2 is suspended with the lamellae 7 on the support ring 3 or
- Converter 2 by means of such blades 7 on the support ring 3 is in the prior art, for. B. from WO 2011/064233 A2 and therefore not further explained in detail.
- the fastening system 1 comprises retaining means 8, which are attached to an outer side of the converter 2. These holding means cooperate with guide means 9 in the form of an oblong hole, which is formed on an underside of the support ring 3.
- the fastening system 1 comprises the support ring 3, the holding means 8 and the
- the holding means 8 comprise a load bolt 10, which is attached to an outer console 11 attached to the wall of the converter 2.
- the load pin 10 extends with its longitudinal axis, starting from a base 12 of the outer panel 11 vertically upward.
- the load pin 10 may be attached to the outer console 1 1 by a screw 13, which is symbolically indicated in Fig. 2. If necessary, thus the load pin 10 can be replaced by the outer console 11.
- the slot 9 is formed in a lower flange 14 of the box-shaped support ring 3.
- the load pin 10 engages in the slot 9 in such a way that it along the longitudinal axis of the slot 9 or along an axis (y), the radially in the direction of
- Fig. 3 is a sectional view taken along the line B-B of Fig. 2.
- the load pin 10 laterally in each case in contact with the
- Load bolt 10 and the longitudinal side edges 15 of the slot 9 is designed with respect to the fit and the material pairings to the effect that the load pin 10 is guided on the one hand in a direction (x) transverse to the longitudinal axis of the slot 9 play, and on the other hand, a mobility of the load bolt 10 both in
- tilting forces which act on the converter 2. These tilting forces occur with reference to FIG. 1 in the direction of the x-axis.
- the load bolt 10 is laterally guided or fixed free of play on the longitudinal side edges 15 of the slot 9. Accordingly, the occurring tilting forces of the converter 2 can be derived in a conclusive manner in the support ring 3.
- the advantage here is that the load pin 10 in conjunction with the slot 9 each is provided diametrically opposite sides of the converter 2, namely directly below the areas where the two pivot pins 4 each engage in the support ring 3.
- FIG. 4 shows a view from below of the load bolt 10 from the direction of the arrow D of FIG. 1.
- Hierin the mobility of the load bolt 10 is symbolized within the slot 9 in the radial direction by the arrow 16r.
- Fig. 3 the mobility of the load pin 10 is symbolized in the vertical direction by the arrow 16z.
- Fig. 5 shows a sectional view taken along the line B-B of Fig. 2.
- Load bolts 10 are screwed on diametrically opposite sides of each pressure plates 17, preferably by means of retractable screws. These pressure plates 17 are intended to come into contact with the longitudinal side edges 15 of the slot 9. Upon reaching a wear limit, the pressure plates 17 can be replaced by loosening the screw in a simple manner. At the longitudinal side edges 15 of the slot 9 are rich in Kunststoffbe for
- Load bolt 10 sliding plates 18 attached.
- the cooperation of the slide plates 18 and the pressure plates 17 is illustrated in Fig. 6, which shows a sectional view along the line C-C of Fig. 5.
- a sliding resistance between the pressure plates 17 and the slide plates 18 can be further reduced by either the pressure plates 17 and / or the slide plates 18 are formed crowned at their respective outer side. Accordingly, the contact surface between the pressure plates 17 and the sliding plates 18 is thereby reduced, which further optimizes the illustrated displaceability of the load bolt 10 in the y-direction or z-direction.
- the pressure plates 17 and the slide plates 18 are preferably made of a material which is wear-resistant and at the same time has good sliding properties, e.g. Hardened steel or equivalent steel alloys.
- the pressure plates 17 and the slide plates 18 can be provided with resistant coatings which have further improved sliding properties.
- movable wedge elements 19 are provided, which are each attached to the longitudinal side edges 15 of the slot 9.
- a respective wedge element 19 has a vertical side surface 20 and, opposite thereto, an oblique wedge surface 21.
- the oblique wedge surface 21 bears against a contact surface 22 of the support ring 3 which is inclined in a complementary manner thereto.
- a respective wedge member 19 includes an upper shoulder portion 23 having a substantially horizontally extending lower bottom surface 24. Adjacent to the shoulder portion 23, a base portion 25 is provided with a horizontal support surface on the support ring 3.
- the sliding plates 18 explained above can be fixed to the vertical side surface 20 of a wedge element 19, for. B. using a screw 26.
- recesses 27 may be formed, in which the sliding plates 18 are added. Through the side walls of the recess 27 advantageously the transverse forces are absorbed, which in a
- FIG. 5 illustrates that the longitudinal side edges 15 of the slot 9 are formed by the vertical side surfaces 20 of the respective wedge elements 19.
- a width b of the elongated hole 9 or a distance of the vertical side surfaces 20 relative to one another can be set by introducing a spacer body 28 having a predetermined thickness between the lower bottom surface 24 of a wedge element 19 and the support surface of the base section 25.
- this spacer body 28 which is made of any and especially pressure-resistant materials slides when mounting a wedge member 19 whose inclined wedge surface 21 along the inclined contact surface 22, whereby a distance of the vertical side surface 20 with respect to the
- FIGS. 5 and 6 are suitable in the same way as the embodiment of FIG. 1 for deriving tilting forces during a pivoting of the support ring 3, because the load bolt 10 is free of play in the x-direction
- a spacer body 28 can be used with a smaller thickness, so that thereby the width b of the slot 9 decreases.
- the holding means 8 are formed on the support ring 3, namely on its underside, wherein the guide means 9 can be provided or attached to an outer side of the converter 2.
- the holding means 8 and guide means 9 function in comparison with the embodiment shown in the drawing on the principle of a kinematic reversal and thus in the same way, so that reference is made to avoid repetition to the explanation with respect to the drawing.
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012224307 | 2012-12-21 | ||
DE102013204847 | 2013-03-19 | ||
DE102013224073.2A DE102013224073A1 (en) | 2012-12-21 | 2013-11-26 | Mounting system for tiltable metallurgical treatment vessels |
PCT/EP2013/076661 WO2014095692A1 (en) | 2012-12-21 | 2013-12-16 | Fastening system for tiltable metallurgical treatment vessels |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2935634A1 true EP2935634A1 (en) | 2015-10-28 |
EP2935634B1 EP2935634B1 (en) | 2016-11-16 |
Family
ID=50878971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13807991.8A Active EP2935634B1 (en) | 2012-12-21 | 2013-12-16 | Fastening system for tiltable metallurgical treatment vessels |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2935634B1 (en) |
JP (1) | JP5925974B2 (en) |
CN (1) | CN105143472B (en) |
DE (2) | DE102013224073A1 (en) |
WO (1) | WO2014095692A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015223007A1 (en) * | 2015-11-20 | 2017-05-24 | Sms Group Gmbh | Arrangement for connecting a lamella with a support ring of a converter and converter with such an arrangement |
EP3502282A1 (en) * | 2017-12-20 | 2019-06-26 | Primetals Technologies Austria GmbH | Tiltable metallurgical vessel and method for fixing and releasing tiltable metallurgical vessel |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1903685C2 (en) | 1969-01-25 | 1975-07-17 | Gutehoffnungshuette Sterkrade Ag, 4200 Oberhausen | Metallurgical tilting vessel, in particular converter for refining pig iron |
DE1911948C3 (en) * | 1969-03-10 | 1973-10-11 | Demag Ag, 4100 Duisburg | Fastening for hot-aisle vessels, especially for tiltable steelwork converters |
JPS496005B1 (en) * | 1969-12-12 | 1974-02-12 | ||
AT348564B (en) * | 1977-01-26 | 1979-02-26 | Voest Ag | SLIDING JOINT BEARINGS, IN PARTICULAR FOR TILTING CONVERTER |
AT357583B (en) * | 1978-11-10 | 1980-07-25 | Voest Alpine Ag | TILTABLE CONVERTER |
DE2905283C3 (en) * | 1979-02-12 | 1983-01-27 | Mannesmann AG, 4000 Düsseldorf | Metallurgical vessel, in particular tiltable and / or rotating steelworks converter |
DE3410949C2 (en) * | 1984-03-24 | 1991-01-03 | Mannesmann AG, 4000 Düsseldorf | Metallurgical vessel, especially replaceable steel mill converter |
DE9211926U1 (en) | 1992-09-04 | 1992-12-17 | Voest-Alpine Industrieanlagenbau Ges.M.B.H., Linz, At | |
DE10059303A1 (en) | 2000-11-29 | 2002-06-06 | Sms Demag Ag | Tiltable converter |
DE102009056219A1 (en) | 2009-11-28 | 2011-06-01 | Sms Siemag Ag | Fixing system for metallurgical vessels |
-
2013
- 2013-11-26 DE DE102013224073.2A patent/DE102013224073A1/en not_active Withdrawn
- 2013-11-26 DE DE102013224072.4A patent/DE102013224072A1/en active Pending
- 2013-12-16 EP EP13807991.8A patent/EP2935634B1/en active Active
- 2013-12-16 JP JP2015548399A patent/JP5925974B2/en active Active
- 2013-12-16 CN CN201380067503.4A patent/CN105143472B/en active Active
- 2013-12-16 WO PCT/EP2013/076661 patent/WO2014095692A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2014095692A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2014095692A1 (en) | 2014-06-26 |
CN105143472B (en) | 2017-06-20 |
EP2935634B1 (en) | 2016-11-16 |
DE102013224073A1 (en) | 2014-06-26 |
DE102013224072A1 (en) | 2014-06-26 |
CN105143472A (en) | 2015-12-09 |
JP2016507643A (en) | 2016-03-10 |
JP5925974B2 (en) | 2016-05-25 |
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