EP1673482A1 - Halteeinrichtung für spülelemente - Google Patents
Halteeinrichtung für spülelementeInfo
- Publication number
- EP1673482A1 EP1673482A1 EP04803442A EP04803442A EP1673482A1 EP 1673482 A1 EP1673482 A1 EP 1673482A1 EP 04803442 A EP04803442 A EP 04803442A EP 04803442 A EP04803442 A EP 04803442A EP 1673482 A1 EP1673482 A1 EP 1673482A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bracket
- holding device
- flushing
- feed opening
- metallurgical vessel
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
- B22D1/005—Injection assemblies therefor
-
- 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
- C21C5/48—Bottoms or tuyéres of converters
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
Definitions
- the invention relates to a holding device for flushing elements.
- Flushing elements for the secondary metallurgical treatment of molten metals have long been known. They serve to supply gases and / or solids into the metallurgical melt.
- the flushing elements consist of refractory ceramic components which have a so-called directional or non-directional porosity. In the case of undirected porosity, the gas feedthrough takes place - as with a sponge - through the open pores of the refractory matrix material.
- a purging member having directional pores has one or more channels extending through the purging member from a so-called cold side (adjacent the outer shell of the metallurgical vessel) to the hot side (adjacent to the melt).
- the gas supply via corresponding connection elements, wherein gas distribution chambers can be interposed.
- Flushing elements of the type mentioned which often have a truncated cone shape, are used with or without sleeve in a so-called perforated brick (both consist of "dense ceramic").
- the sleeve and the perforated brick in turn form part of a refractory lining in the wall or bottom area of the metallurgical vessel.
- the gas purging elements represent a wearing part, which must be changed regularly.
- the metallic outer casing of the metallurgical vessel has an opening.
- the worn flushing element is broken out or pulled out and a new flushing element is inserted from the outside and aligned, for example, in the mentioned sleeve or the perforated brick. In this position, it must then be kept safe.
- a holding device which is constructed as follows: In the edge region of said opening of the metallic outer shell a plurality of bolts are arranged, which protrude perpendicularly from the outer shell to the outside. On these bolts tabs can be screwed, which have a further threaded opening, can be passed through the other screws. On the tabs is a portion of the flushing element, which is held in the desired position. Due to the mentioned additional screws, the flushing element can be aligned within certain limits.
- This known holding device is relatively complicated and allows a height adjustment of the flushing element, relative to the refractory lining, for example, relative to the perforated brick, only within narrow limits.
- the known holding device is each parked only on one type of flushing elements. Often, however, different sized (long) flushing elements are used.
- the known holding device is not suitable, for example, to keep shorter scavenging elements in the desired composite position relative to the perforated brick or the sleeve.
- the invention has for its object to offer a holding device of the type mentioned, with the flushing elements, which are used in a refractory lining of a wall or a bottom of a metallurgical vessel to keep safe.
- the holding device should be easy to use and be designed so that purging elements of different sizes (different lengths) can be held with one and the same holding device. An installation of immediately adjacent flushing elements would also be desirable.
- the invention is based on the following consideration:
- the holding device should comprise a pivotable bracket which has at least one section which can be guided in the region of the mentioned feed opening in the metallic outer casing of the metallurgical vessel against a lower (cold side) stop point of the flushing element and which can be locked in different pivoting positions.
- the bracket is then pivoted over a more or less large (small) angle in the direction of or through the feed opening until it bears against the lower end face or another stop of the flushing element.
- this pivoting position (corresponding to the desired end position of the flushing element within the lining), the bracket is fastened to the retaining device and can securely hold the flushing element.
- the invention accordingly relates to a holding device for a flushing element, which is inserted into a refractory lining of a wall or a bottom of a metallurgical vessel, wherein a metallic outer shell of the vessel in the extension of the flushing element has a feed opening and which is characterized by the following features : - at least one bracket,
- a first end of the bracket is pivotally guided in a bearing which is attachable to the outer shell of the metallurgical vessel
- a second end of the stirrup can be locked in different pivoting positions of the stirrup on a lock which is fastened on the outer casing of the metallurgical vessel,
- bracket Between the first and second end of the bracket is formed with at least one portion which is feasible upon pivoting of the bracket to the bearing in the region of the feed opening of the outer shell against a lower stop point of the flushing element.
- a flushing element is generally formed with gas connection lines and / or penetration fuses and / or gas distribution chambers, which are arranged in the region of the lower end face of the flushing element or adjoin the lower end face of the flushing element. In the simplest case, it is a pipeline which is guided into the "cold" end of the flushing element.
- the stop point can thus be, for example, the lower end face of the flusher, the cold end of an additionally installed breakthrough lock or the cold side of a gas distribution chamber.
- the bracket must be designed so that it does not press on mechanically sensitive connection elements, because the bracket should only press against a stable stop point (for example, the lower end face of the flushing element).
- an embodiment of the invention provides to form the bracket with an opening in order to accommodate the mentioned sensitive connection parts of the flushing element can.
- the bracket to an opening which is larger than the connecting parts, so that they can be passed through the opening.
- the bracket consists of two spaced apart at a distance bracket arms. When pivoting the bracket, the connection elements of the flushing element dive accordingly into the distance between the bracket arms, so remain unloaded, while the two bracket arms can then be performed against the lower end face of the flushing element.
- the portion of the bracket between the ends, which is guided against the flushing element, can be designed in different ways.
- the bracket or the bracket arms are straight.
- Said section (s) is formed by thickenings, which for example have the shape of a semicircle.
- the extending between the ends portion of the bracket may be curved, for example in the form of a ring portion or asymmetric. This embodiment is explained in more detail in the following description of the figures. In this case, the curved section is guided through the feed opening in the furnace shell.
- the mentioned bearing and the associated lock can be attached to the outside of the metallic outer shell of the metallurgical vessel, for example welded. Likewise, an attachment to the inner wall of the feed opening is possible.
- a further embodiment of the invention provides to form the holding device with a plate which is fastened with one side (main surface) to the outer casing of the metallurgical vessel, wherein the plate has an opening which corresponds as far as possible to the feed opening of the metallic outer casing of the metallurgical vessel and Extension of this feed opening runs, on the other side (main surface) of the Plate the bearing and the lock are attached, and here, too, the parts may be screwed or welded, for example.
- the advantage of this embodiment is that the holding device can be brought completely prefabricated to the metallurgical vessel. The plate is then attached in its entirety to the outer shell of the metallurgical vessel. Further assembly work is not necessary.
- the invention further provides additional pressure elements, which are arranged on the portion which is guided in the region of the feed opening of the metallic outer shell of the metallurgical vessel against the flushing element.
- These pressure elements are placed on the outer sides of the bracket (the bracket arms), so that the flushing element in the holding position of the holding device rests on these pressure elements and thus only indirectly on the brackets.
- the advantage of these separate printing elements is that they can be adjusted (and interchangeable, even against pressure elements of different shape and size) on the bracket (the bracket arms) can be arranged.
- “Adjustable” means that the printing elements, such as printing plates, are displaceable or pivotable along said bracket sections.
- the printing elements may consist wholly or partly of a poorly heat-conductive material such as ceramic, in particular refractory ceramic. You can also be covered with appropriate insulation. Alternatively or cumulatively, this applies to the temple sections which come into contact with the hot flushing element. This is to reduce the heat conduction into the device.
- the pressure elements are connected via wires to the corresponding bracket sections, which allow a displaceability or pivoting.
- the bracket in the corresponding section may have a longitudinal groove, into which engages an outgoing from the printing elements pin, whereby also a pivotability and longitudinal displacement of the printing elements over a certain distance is achieved. So that the printing elements from the mentioned grooves do not fall out, the pins may have end thickenings and the grooves are formed correspondingly with different cross-sections.
- the lock may consist of a threaded rod which is guided at its first end articulated to a pivot bearing and on the second end of a locking member is screwed, which engages under the bracket in a desired holding position relative to the flushing element.
- This system is particularly sturdy, effective, easy to operate and, according to the length of the threaded rod, can allow attachment of the bracket in various angular positions (pivoting positions).
- the description of the figures provides further information below.
- Another possibility is to form the lock with a rod which protrudes more or less perpendicularly from the outer shell of the metallurgical vessel and has different transverse bores through which locking pins can be guided, which engage at the same time the bracket (the bracket arms) in the desired pivot position.
- FIG. 1 a perspective view of a holding device according to the invention
- FIG. 2 a section through a metallurgical vessel to which the holding device according to FIG. 1 is fastened and in whose refractory lining a flushing element is arranged.
- Figure 2 shows a vertical section through a portion of a bottom 10 of a metallurgical vessel, here a ladle.
- the bottom 10 is constructed from outside to inside (in the drawing: from bottom to top) as follows:
- a refractory ceramic stone 20 with the outer diameter D is arranged above the opening 14, which has a frusto-conical central opening in which a refractory ceramic sleeve 22 is located, in turn, a frusto-conical Gas purging cone 24 is arranged.
- the sleeve 22 and the scavenger 24 can pass through the feed opening 14 (with a diameter d; d ⁇ D) of the metallic one Outer jacket 12 in the hole block 20 and the sleeve 22 are performed.
- a pipe 28 is connected, via which a treatment gas is supplied, which is then guided by channels (not shown) in the flushing element 24 from the cold side (at 24u) to the hot side 24o.
- FIG. 1 for better illustration, the boundary 13 of the feed opening 14 of the metal shell 12 is shown next to the holding device.
- the holding device comprises a pivot bearing 32.
- This comprises three supports 34a, b, c, which are welded at a distance from each other on one side of the opening 14 on the outer shell 12 of the ladle.
- Each carrier 34a-c is formed with a bore, wherein the three holes are penetrated by a common pin 36.
- Between the carriers 34a, 34b and 34b, 34c sit two brackets 38, 40 on the bolt 36.
- Each bracket 38, 40 has a first, more or less straight portion 38 a, which is followed by a curved towards the opening 14 center portion 38 b, 40 b, which merges into a turn more or less straight third portion 38 c, 40 c, wherein the respective end portions (38a, 38c) extend in almost one direction.
- Figure 2 is very roughly an "omega-shape" of each bracket 38, 40th
- the carriers 34a-c opposite two other carrier 41 a, b are welded to the outer jacket 12.
- the carrier 41 a, b in turn have a horizontally extending bore through which a common pin 42 is guided.
- a threaded screw 44 with its loop-like head 44 k rotatably mounted on the bolt 42.
- a nut 44 m is placed, which acts on a rod 44 disposed on the threaded rod 44.
- the cross bar 46 has the shape of a half-cylinder.
- the brackets 38, 40 are formed in their sections 38c, 40c on the underside with corresponding semicircular recesses 38cc.
- the adjusting device is activated by the threaded screw 44 is moved from the outside under the bracket 38, 40. Subsequently, the locking member 46 is guided in the semicircular recesses of the bracket 38, 40 by means of the nut 44m. In this position, the holding device supports the dishwasher 24 permanently.
- an insulating plate 60 (indicated at 50) can be arranged on the pressure plates 48, 50.
- the insulating plate may also be placed in a corresponding groove 62 on the upper end surface of the printing elements (as indicated at 48) and project beyond the printing element 48.
- the pressure plates 48, 50 may themselves, at least partially, consist of a heat-insulating material. The same applies to the bracket 38, 40th
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Sampling And Sample Adjustment (AREA)
- Cleaning In General (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Furnace Charging Or Discharging (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL04803442T PL1673482T3 (pl) | 2003-12-23 | 2004-12-02 | Urządzenie mocujące dla elementów przedmuchujących |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10360827A DE10360827B3 (de) | 2003-12-23 | 2003-12-23 | Halteeinrichtung für Spülelemente |
| PCT/EP2004/013697 WO2005066375A1 (de) | 2003-12-23 | 2004-12-02 | Halteeinrichtung für spülelemente |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1673482A1 true EP1673482A1 (de) | 2006-06-28 |
| EP1673482B1 EP1673482B1 (de) | 2007-09-05 |
Family
ID=34559771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04803442A Expired - Lifetime EP1673482B1 (de) | 2003-12-23 | 2004-12-02 | Halteeinrichtung für spülelemente |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1673482B1 (de) |
| AT (1) | ATE372393T1 (de) |
| DE (2) | DE10360827B3 (de) |
| ES (1) | ES2291965T3 (de) |
| PL (1) | PL1673482T3 (de) |
| WO (1) | WO2005066375A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107223578A (zh) * | 2017-06-30 | 2017-10-03 | 宝鸡银康机械设备有限公司 | 用于高效移动小车中的管头调节固定装置 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2871008A (en) * | 1950-11-02 | 1959-01-27 | Air Liquide | Apparatus for gas flushing of molten metal |
| US4589635A (en) * | 1984-05-24 | 1986-05-20 | Pollock Company | Porous plug retainer |
| GB8703717D0 (en) * | 1987-02-18 | 1987-03-25 | Injectall Ltd | Injecting gas into metal melts |
| DE3716920A1 (de) * | 1987-05-20 | 1988-12-08 | Steuler Industriewerke Gmbh | Gasspuelsystem mit gasdurchbruchssicherung |
| DE3833502A1 (de) * | 1988-10-01 | 1990-04-05 | Didier Werke Ag | Gasspuelstein |
| DE3833504A1 (de) * | 1988-10-01 | 1990-04-05 | Didier Werke Ag | Gasspueleinrichtung |
| DE4021259C2 (de) * | 1989-12-22 | 1994-02-24 | Didier Werke Ag | Verfahren zur Herstellung eines Verbundteiles |
| DE19915100C1 (de) * | 1999-04-01 | 2000-05-31 | Asku Scholten Gmbh | Spülerverschluß für eine Gießeinrichtung |
| DE19941639C2 (de) * | 1999-08-27 | 2001-09-13 | Mannesmann Ag | Gasspüleinrichtung für ein metallurgisches Gefäß |
-
2003
- 2003-12-23 DE DE10360827A patent/DE10360827B3/de not_active Expired - Fee Related
-
2004
- 2004-12-02 DE DE502004004905T patent/DE502004004905D1/de not_active Expired - Lifetime
- 2004-12-02 AT AT04803442T patent/ATE372393T1/de not_active IP Right Cessation
- 2004-12-02 PL PL04803442T patent/PL1673482T3/pl unknown
- 2004-12-02 ES ES04803442T patent/ES2291965T3/es not_active Expired - Lifetime
- 2004-12-02 WO PCT/EP2004/013697 patent/WO2005066375A1/de not_active Ceased
- 2004-12-02 EP EP04803442A patent/EP1673482B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005066375A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1673482B1 (de) | 2007-09-05 |
| DE10360827B3 (de) | 2005-06-09 |
| DE502004004905D1 (de) | 2007-10-18 |
| ES2291965T3 (es) | 2008-03-01 |
| ATE372393T1 (de) | 2007-09-15 |
| PL1673482T3 (pl) | 2007-12-31 |
| WO2005066375A1 (de) | 2005-07-21 |
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