EP3106813A1 - Gasspül-element und zugehörige gaszuführ-leitung - Google Patents

Gasspül-element und zugehörige gaszuführ-leitung Download PDF

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Publication number
EP3106813A1
EP3106813A1 EP16181865.3A EP16181865A EP3106813A1 EP 3106813 A1 EP3106813 A1 EP 3106813A1 EP 16181865 A EP16181865 A EP 16181865A EP 3106813 A1 EP3106813 A1 EP 3106813A1
Authority
EP
European Patent Office
Prior art keywords
gas
connection
supply line
connection piece
plug
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.)
Withdrawn
Application number
EP16181865.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Bernd Trummer
Michael Klikovich
Roman Kulp
Leopold Kneis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Refractory Intellectual Property GmbH and Co KG
Original Assignee
Refractory Intellectual Property GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Refractory Intellectual Property GmbH and Co KG filed Critical Refractory Intellectual Property GmbH and Co KG
Priority to EP16181865.3A priority Critical patent/EP3106813A1/de
Publication of EP3106813A1 publication Critical patent/EP3106813A1/de
Withdrawn legal-status Critical Current

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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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases
    • 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
    • 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
    • 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing through the bath
    • 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge

Definitions

  • the invention relates to a gas purging element on a metallurgical vessel and an associated gas supply line.
  • a gas purging element also called gas purging plug, is used for blowing in gases, if appropriate also gas / solid mixtures, into a melt to be treated, in particular a metallurgical melt.
  • gas purging plug with directed porosity, the gaseous treatment fluid is guided along corresponding channels / slots, in the case of gas purging ponds with so-called random porosity along a corresponding irregular pore volume.
  • the arrangement of a gas purging plug in the bottom or the wall of a metallurgical vessel can be done in different ways.
  • the gas purging plug is placed in an associated well block. Outside, at the end, where the gas is supplied, the dishwasher with a mechanics on secured metallurgical vessel. To disassemble or replace the purifier, the mechanism is opened.
  • the gas purging plug In order to avoid a diffusion of the gas into the adjacent refractory material, it is known to form the gas purging plug with a metal jacket.
  • the sheet extends in particular peripherally and in the bottom area of the purifier.
  • the bottom plate has an opening, which is followed by a gas connection pipe which protrudes freely over the bottom plate.
  • This section is called the "cold end” of a gas purging element, while the end opposite in the axial direction of the gas purging element is referred to as the "hot end".
  • this end After installation of the gas purging element, this end is operatively in contact with the hot melt to be treated. Gas is blown into the melt via the gas connection tube, the opening and through the directional and / or non-directional pores of the refractory material.
  • the DE 38 33 502 C2 suggests a gas purging plug that has no metallic bottom plate and no gas connection.
  • This gas purging plug is characterized by a free opening at the cold end.
  • a mounting device secures the gas purging plug in the mounting position and serves at the same time to use a gas connection element to guide the gas from there through the gas purging plug.
  • the gas purging plug according to DE 38 33 502 C2 is easy to transport and assemble, because it does not have the long gas connection pipe like the gas purging plug according to EP 0 148 337 A1 ,
  • the known device according to DE 38 33 502 C2 however, hardly seals against gas loss.
  • the invention has for its object to offer a structurally simple way how the assembly or disassembly of a gas purging plug can be simplified and a loss of gas is minimized.
  • a sheet-metal gas purging plug has many advantages. He has a high dimensional accuracy, avoids gas loss and is insensitive to transport. The latter applies with restriction regarding the gas connection pipe.
  • an inventive idea is to reduce the length of the gas connection pipe to a minimum, so only provide a short gas connection piece.
  • One or more further components can be connected to this gas connecting piece in order to establish a gas connection between the gas source and the gas purging plug.
  • a further concept of the invention is to plug such a component and the gas connection piece into each other, so as to provide connection as a connector.
  • Plug connection means that corresponding sections of adjacent components are only inserted into one another in order to achieve the desired fluidic, loss-free as possible passage of the gas.
  • the connector comprises a plug (male part) and a socket (female part).
  • the concrete geometry is not crucial.
  • the connector makes it possible to connect adjacent sections (of the gas supply system) in the flow direction of the gas only by plugging together.
  • the plug-in connection alone serves to create a largely gas-tight connection. This can be realized, for example, in that corresponding sections of the plug connection have a corresponding conical / frusto-conical shape and are inserted into one another.
  • the plug-in connection thus primarily serves the gas-tight connection of adjacent components (for example pipe sections), optionally an additional securing element can mechanically secure / fix adjacent sections in the plug-in position.
  • the connector requires no tool, the parts to be connected to the "gas line" are simply plugged into each other. This is fast and also at high ambient temperatures.
  • the gas connection piece at the bottom of the gas purging element can be formed in the manner of an adapter.
  • This adapter is to be distinguished from a gas connection pipe of known type.
  • the adapter can be much shorter and has essentially only the task of providing a connection part for a gas supply line. Although this adapter will inevitably lead to gas, but only over a short distance.
  • the length of the adapter in the direction of the gas flow is according to one embodiment ⁇ 20 cm, often ⁇ 15 cm or ⁇ 10 cm.
  • the adapter connects directly to the bottom of the gas purge element.
  • the adapter / gas connection piece can run from the base plate inwards into the ceramic part of the gas purging plug or vice versa. In both cases, an associated gas supply line is placed with its second end on or in the gas connection pipe to create a continuous gas connection.
  • An embodiment provides, the second end of the gas supply line and the adapter in the bottom region of the gas purging element by a Connect plug connection to each other and secured by an additional securing element against accidental loosening.
  • a clip or a bayonet lock can fulfill this task.
  • connection connection gas connection piece / gas supply line
  • connection connection consist for example of pieces of pipe or pieces of hose whose internal cross-section depends on the amount of gas to be conveyed through the connection to the gas purging plug and then through the gas purging plug.
  • the corresponding section may have a gas channel, which runs at least in sections coiled or zigzag.
  • the break-through protection is thus arranged in front of or at the cold end of the gas purging element (in the direction of the gas flow).
  • the break-through protection can be constructed as a replaceable component, which is connected to a corresponding section of the gas supply line or the gas connection piece, for example with a plug connection of the type mentioned.
  • the plug-in connection can be formed so that the nested parts (in particular pipe sections) have corresponding geometries from the group: prisms, cones, truncated cones, spheres, paraboloids.
  • the plug connection can be designed in such a way that the free end of the section which lies farther away from the gas purging plug has the largest cross-sectional area, as is also shown in the following description of the figures.
  • the security element has the task of preventing this connection from loosening again.
  • the securing element can also be designed as a pressure or holding device which presses, for example, the gas supply line in the direction of the gas purging plug and / or holds in the plug position.
  • the pressure / holding element may be part of a mounting device which is pivotally mounted on the outside of the metallurgical vessel.
  • the assembly / disassembly device can be dimensioned so that it can be pivoted freely after installation of the gas purging element via the gas connection piece, wherein the mounting device has an opening or a slot through which the gas connection piece and optionally a gas supply line and a fuse element can be passed.
  • the length of the gas connection element is selected, which is part of the gas purging plug.
  • the reference numeral 10 describes a frusto-conical gas purging plug with an outer metal jacket 12 and a sheet metal bottom 14, which has a central opening 16.
  • a refractory ceramic body 10k having a porous portion 10p, through which a gas can be transported in the direction of arrow G from the lower, cold end 10n of the gas purging plug 10 to its upper (not shown) hot end 10o.
  • a gas connection piece 20 for the gas purging plug 10 extends around the opening 16.
  • the gas connection piece 20 with axial gas channel 26 extends downwards from the opening 16 in the illustrated installation position.
  • the Gasanscblussstutzen 20 has a first end 20.1 at a distance to the gas purging element 10 and a second end 20.2 adjacent the gas purging element 10.
  • the second portion 20.2 is welded to the metal bottom 14 (weld 22).
  • the gas connection piece 20 has a cross-sectional change on the inside, the part facing the gas purging plug 10 having a larger cross-section.
  • a body 24 is loosely arranged. Without gas pressure it rests on a shoulder of the described cross-sectional reduction of the gas channel 26. Under gas pressure, the body 24 lifts off the shoulder and moves toward the gas purging plug 10. A locking pin 28 disposed above the body 24 prevents the body 24 from closing off the opening 16.
  • the gas channel 26 widens conically downwards and outwards.
  • a second end 30.2 of a gas supply line 30 is inserted gas-tight.
  • This end 30.2 is designed according to a truncated cone (nozzle-like) and its tapered end is up.
  • the end 20.1 forms the can, the end 30.2 the plug of the connector.
  • the gas supply line 30 has a shoulder 33 slightly below the first end 20. 1 of the gas connection piece 20.
  • a shoulder 32 abuts an annular inner shoulder 42 of a securing element 40, which is also tubular.
  • the securing element 40 has, in the area above the shoulder 42, an internal thread 42i which is screwed onto a corresponding external thread 20.1a of the likewise externally cylindrical first end 20.1 of the gas connecting piece 20.
  • the securing element 40 extends tubular down to a radially outwardly extending wheel 44 for locking.
  • connection connection of gas connection piece 20 and gas supply line 30 is formed with axially nested sections 20.1, 30.2, wherein the connector is secured via the securing element 40 against loosening.
  • FIG. 1 shows the mounting position, in which the mounting device engages over the gas connection piece 20 and the second end 30.2 of the gas supply line 30 with an annular element 64.
  • the annular member 64 is fixed relative to the fixed outer shell 50 by means of a handle 66 in the position shown.
  • the element 64 rests against a sleeve 68, which surrounds the second end 20. 2 of the gas connecting piece 20.
  • the sleeve 68 is part of the refractory lining below the Gas Whyiatas 10.
  • the first end 20.1 of the gas connection piece 20 protrudes downwards over the sleeve 68 before.
  • the assembly is simple because the mounting device 60 can be pivoted to the position described before the gas supply line 30 is fitted and secured to the gas connection piece 20. Before the gas-tight connection of the parts 20,30 of the gas purging plug 10 is securely positioned.
  • the gas connection piece 20 of the connection connection is precisely adjusted, so that the plug-in connection with the gas supply line 30 can be very simple, accurate and fast.
  • the length of the gas supply line 30 is arbitrary.
  • the gas supply line 30 may also consist of several sections, which in turn can be connected by plug connection (or otherwise) gas-tight with each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
EP16181865.3A 2012-08-27 2012-08-27 Gasspül-element und zugehörige gaszuführ-leitung Withdrawn EP3106813A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16181865.3A EP3106813A1 (de) 2012-08-27 2012-08-27 Gasspül-element und zugehörige gaszuführ-leitung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12181902.3A EP2703761B1 (de) 2012-08-27 2012-08-27 Gasspül-Element mit zugehöriger Gaszuführ-Leitung
EP16181865.3A EP3106813A1 (de) 2012-08-27 2012-08-27 Gasspül-element und zugehörige gaszuführ-leitung

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP12181902.3A Division EP2703761B1 (de) 2012-08-27 2012-08-27 Gasspül-Element mit zugehöriger Gaszuführ-Leitung

Publications (1)

Publication Number Publication Date
EP3106813A1 true EP3106813A1 (de) 2016-12-21

Family

ID=46799073

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EP16181865.3A Withdrawn EP3106813A1 (de) 2012-08-27 2012-08-27 Gasspül-element und zugehörige gaszuführ-leitung
EP12181902.3A Active EP2703761B1 (de) 2012-08-27 2012-08-27 Gasspül-Element mit zugehöriger Gaszuführ-Leitung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12181902.3A Active EP2703761B1 (de) 2012-08-27 2012-08-27 Gasspül-Element mit zugehöriger Gaszuführ-Leitung

Country Status (20)

Country Link
US (2) US9683272B2 (ru)
EP (2) EP3106813A1 (ru)
JP (1) JP5982574B2 (ru)
KR (1) KR101687091B1 (ru)
CN (1) CN104412058B (ru)
BR (1) BR112015000090B1 (ru)
CA (1) CA2876461C (ru)
CL (1) CL2014003639A1 (ru)
EA (1) EA029105B1 (ru)
ES (1) ES2592174T3 (ru)
HU (1) HUE029621T2 (ru)
IL (1) IL236502B (ru)
MX (1) MX362688B (ru)
PE (1) PE20150152A1 (ru)
PL (1) PL2703761T3 (ru)
SA (1) SA515360061B1 (ru)
TW (1) TWI558485B (ru)
UA (1) UA111663C2 (ru)
WO (1) WO2014032923A2 (ru)
ZA (1) ZA201501967B (ru)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3106813A1 (de) * 2012-08-27 2016-12-21 Refractory Intellectual Property GmbH & Co. KG Gasspül-element und zugehörige gaszuführ-leitung
ES2930764T3 (es) * 2017-09-28 2022-12-21 Krosakiharima Corp Estructura de casquillo para agujero de introducción de gas
CN109777921A (zh) * 2017-11-14 2019-05-21 党祎贤 一种钢包吹氩自动对接机构
MX2020006972A (es) 2018-01-29 2020-09-09 Refractory Intellectual Property Gmbh & Co Kg Tapon de purga de gas, sistema de purga de gas, metodo para caracterizacion de un tapon de purga de gas y metodo para purgar un fundido metalico.

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834685A (en) * 1973-09-24 1974-09-10 Allegheny Ludlum Ind Inc Apparatus for injecting fluids into molten metals
AT365958B (de) * 1980-06-30 1982-02-25 Voest Alpine Ag Metallurgisches gefaess
EP0148337A1 (de) 1983-11-17 1985-07-17 Radex Deutschland Aktiengesellschaft für feuerfeste Erzeugnisse Gasspülstein für metallurgische Gefässe
EP0234852A1 (en) * 1986-02-20 1987-09-02 Injectall Limited Injection of substances into high temperature liquids
DE3833502C2 (ru) 1988-10-01 1990-10-04 Didier-Werke Ag, 6200 Wiesbaden, De
DE4029024A1 (de) * 1990-09-13 1992-03-19 Beda Oxygentech Armatur Spuelanschlusskupplung
US5112029A (en) * 1991-07-22 1992-05-12 Instituo Mexicano De Investigaciones Siderurgicas Quick fluid injection assembly replacement in metallurgical reacters
DE19948848C1 (de) * 1999-10-08 2000-07-13 Dolomitwerke Gmbh Gasspülstein für metallurgische Gefäße
WO2005107979A1 (de) * 2004-05-05 2005-11-17 Stefan Munding Gasspülvorrichtung
WO2011118477A1 (ja) * 2010-03-23 2011-09-29 黒崎播磨株式会社 ガス吹き込み用プラグの設置構造

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451945A1 (fr) * 1979-03-19 1980-10-17 Est Aciers Fins Tuyere de brassage de bain de metal liquide
US4632367A (en) * 1984-10-19 1986-12-30 Labate Michael D Device for introducing gas into molten metal
US4725047A (en) * 1985-08-26 1988-02-16 Labate M D Device for introducing gas into molten metal
DE3833504A1 (de) * 1988-10-01 1990-04-05 Didier Werke Ag Gasspueleinrichtung
CA2014999C (en) * 1989-04-24 1999-09-07 Kenneth William Bates Gas injector
DE4121329C2 (de) * 1991-06-28 1995-09-07 Veitsch Radex Ag Gasspülstein
KR200417535Y1 (ko) * 2006-03-21 2006-05-30 조선내화 주식회사 래들용 버블링플러그 고정장치
CN201221636Y (zh) * 2008-06-05 2009-04-15 钟伯华 瓦斯阀座
JP2010189687A (ja) * 2009-02-17 2010-09-02 Tokyo Yogyo Co Ltd ガス吹き込みプラグ
EP3106813A1 (de) * 2012-08-27 2016-12-21 Refractory Intellectual Property GmbH & Co. KG Gasspül-element und zugehörige gaszuführ-leitung

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834685A (en) * 1973-09-24 1974-09-10 Allegheny Ludlum Ind Inc Apparatus for injecting fluids into molten metals
AT365958B (de) * 1980-06-30 1982-02-25 Voest Alpine Ag Metallurgisches gefaess
EP0148337A1 (de) 1983-11-17 1985-07-17 Radex Deutschland Aktiengesellschaft für feuerfeste Erzeugnisse Gasspülstein für metallurgische Gefässe
EP0234852A1 (en) * 1986-02-20 1987-09-02 Injectall Limited Injection of substances into high temperature liquids
DE3833502C2 (ru) 1988-10-01 1990-10-04 Didier-Werke Ag, 6200 Wiesbaden, De
DE4029024A1 (de) * 1990-09-13 1992-03-19 Beda Oxygentech Armatur Spuelanschlusskupplung
US5112029A (en) * 1991-07-22 1992-05-12 Instituo Mexicano De Investigaciones Siderurgicas Quick fluid injection assembly replacement in metallurgical reacters
DE19948848C1 (de) * 1999-10-08 2000-07-13 Dolomitwerke Gmbh Gasspülstein für metallurgische Gefäße
WO2005107979A1 (de) * 2004-05-05 2005-11-17 Stefan Munding Gasspülvorrichtung
WO2011118477A1 (ja) * 2010-03-23 2011-09-29 黒崎播磨株式会社 ガス吹き込み用プラグの設置構造

Also Published As

Publication number Publication date
CL2014003639A1 (es) 2015-07-31
ZA201501967B (en) 2016-01-27
BR112015000090A2 (pt) 2017-06-27
SA515360061B1 (ar) 2017-04-16
MX362688B (es) 2019-02-01
US20150184265A1 (en) 2015-07-02
KR20150030204A (ko) 2015-03-19
MX2014012134A (es) 2015-03-05
CN104412058B (zh) 2016-08-17
PE20150152A1 (es) 2015-02-07
TW201408400A (zh) 2014-03-01
EP2703761A1 (de) 2014-03-05
WO2014032923A2 (de) 2014-03-06
IL236502A0 (en) 2015-02-26
BR112015000090B1 (pt) 2021-01-19
ES2592174T3 (es) 2016-11-28
TWI558485B (zh) 2016-11-21
CN104412058A (zh) 2015-03-11
HUE029621T2 (en) 2017-03-28
WO2014032923A3 (de) 2014-06-26
PL2703761T3 (pl) 2016-12-30
JP2015531828A (ja) 2015-11-05
CA2876461A1 (en) 2014-03-06
EA029105B1 (ru) 2018-02-28
KR101687091B1 (ko) 2016-12-15
EA201401263A1 (ru) 2015-07-30
US9683272B2 (en) 2017-06-20
IL236502B (en) 2018-03-29
CA2876461C (en) 2017-07-18
UA111663C2 (uk) 2016-05-25
JP5982574B2 (ja) 2016-08-31
US20170327914A1 (en) 2017-11-16
EP2703761B1 (de) 2016-08-17

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