EP0364724A1 - Gasspüleinrichtung - Google Patents

Gasspüleinrichtung Download PDF

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Publication number
EP0364724A1
EP0364724A1 EP89116618A EP89116618A EP0364724A1 EP 0364724 A1 EP0364724 A1 EP 0364724A1 EP 89116618 A EP89116618 A EP 89116618A EP 89116618 A EP89116618 A EP 89116618A EP 0364724 A1 EP0364724 A1 EP 0364724A1
Authority
EP
European Patent Office
Prior art keywords
gas purging
gas
piston
cover part
plunger
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Withdrawn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
EP89116618A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hans Rothfuss
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.)
Didier Werke AG
Original Assignee
Didier Werke AG
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 Didier Werke AG filed Critical Didier Werke AG
Publication of EP0364724A1 publication Critical patent/EP0364724A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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

Definitions

  • the invention relates to a gas purging device with a gas purging plug, on which a gas connection is arranged, a valve arrangement being provided in the gas connection, the valve body of which is held in the open position via a plunger and a melting body inserted into the gas purging plug until the melting body melts.
  • the gas purging plug forms a structural unit together with a cover of a gas distribution space and the valve arrangement, which as a whole has to be replaced when the gas purging plug is closed.
  • the cover part and the valve arrangement are lost. This seems uneconomical.
  • the object of the invention is to propose a gas purging device of the type mentioned in the introduction, in which the valve arrangement can be reused and the gas purging plug can be easily exchanged with the melting body.
  • the above object is achieved in a gas purging device of the type mentioned at the outset in that a cover part can be placed sealingly on the end face of the gas purging plug and in that the tappet is fastened to a piston guided in the cover part, the tappet when the cover part is placed on the end face on the Meets the melting body, pushes the valve body into the open position and holds the valve body in the open position while standing on the melting body.
  • the gas purging plug with the melting body and the cover part with the valve arrangement are two separate, easily assembled and separable components. After the gas purging plug has been closed, the cover part with the valve arrangement can be used for a new gas purging plug with a melting body.
  • the valve arrangement does not disintegrate into its individual parts when the gas purging plug is removed. Your valve body is automatically brought back into its open position when a new gas purging plug is placed on the cover part.
  • a gas purging plug 1 consists of a gas-impermeable, fireproof outer part 2 and a gas-permeable, fireproof inner part 3.
  • the gas impermeability of the outer part 2 is achieved by dense, fireproof material, such as e.g. chemically or hydraulically setting, ceramic masses with closed pores.
  • dense, fireproof material such as e.g. chemically or hydraulically setting, ceramic masses with closed pores.
  • known porous components are used, which the person skilled in the art knows, for example, under the terms permeable stones, capillary rinsers, labyrinth rinsers, and window washers.
  • the outer part 3 has a chamber 5 which is open towards its end face 4 and extends into the inner part 3 and forms a gas distribution space.
  • the chamber 5 merges into a shaft 6 in the inner part 3, at the bottom of which a melting body 7 is arranged.
  • the melting body 7 consists of a material which softens at about 1200 ° C. to 1300 ° C., such as refractory material or metal.
  • a free space 8 is provided in the melting body 7, into which the melting body 7 escapes during melting.
  • the melting body 7 is formed by a block-shaped body.
  • the melting body 7 is a disk which is supported on the base of the shaft 6 via a ceramic tube piece 9.
  • a cover part 10 is attached to the end face 4 of the gas purging plug 1 and is connected to the outer part 1 by means of screws 11 or in another way.
  • a sealing ring 12 is arranged between the end face 4 and the cover part 10. The lid part 10 closes and chamber 5 from the environment.
  • the cover part 10 has a gas connection 13. It projects into the chamber 5 with a sleeve 14.
  • the sleeve 14 is covered by a perforated disk 15.
  • a protective tube 16, which projects into the shaft 6, is fastened to this.
  • a plunger 17 extends in the protective tube 16 and stands on the melting body 7.
  • a cylinder 18 is inserted into the sleeve 14, in which a piston 20 provided with bores 19 is guided.
  • the plunger 17 is attached to the piston 20.
  • the plunger 17 is detachable and replaceable.
  • the piston 20 is loaded by a compression spring 21.
  • a valve seat 22 is formed on the sleeve 14 and is associated with a valve cone 23 attached to the piston 20.
  • the valve seat 22 and the valve cone 23 are designed so that even when the valve cone 23 is in its closed position, gas can still pass through.
  • the gas flow cross section is considerably smaller than when the valve cone 23 is in its open position (see Figure 1).
  • the gas purging device described works approximately as follows:
  • valve plug 23 is held in its open position by the fact that the plunger 17 abuts the melting body 7 at one end. He thereby holds the piston 20 against the force of the compression spring 21 in its one position, whereby the valve cone 23 is held in the open position.
  • the melting body 7 melts in the vessel under the action of heat from the melt.
  • the plunger 17 penetrates into the softened melting body 7 under the action of the compression spring 21.
  • the plunger 17 has a tip 24 for this purpose .
  • the valve cone 23 simultaneously goes from its open position to its closed position. The gas flow cross section is thus considerably reduced. This is shown on a display instrument, not shown. A further gas purging is possible in particular by increasing the gas pressure.
  • the gas purging plug 1 If the gas purging plug 1 is to be replaced, it can be pulled out of the wall of the vessel by means of the cover part 10. Then the screws 11 are loosened and the worn-out gas purging plug is removed from the cover part 10. The sleeve 14, the disk 15, the protective tube 16 and the tappet 17 remain on the cover part 10. Under the action of the compression spring 21, the tappet 17 is advanced until the piston 20 strikes the disk 15 which serves to limit the stroke.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP89116618A 1988-10-01 1989-09-08 Gasspüleinrichtung Withdrawn EP0364724A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3833505A DE3833505C1 (enrdf_load_stackoverflow) 1988-10-01 1988-10-01
DE3833505 1988-10-01

Publications (1)

Publication Number Publication Date
EP0364724A1 true EP0364724A1 (de) 1990-04-25

Family

ID=6364234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116618A Withdrawn EP0364724A1 (de) 1988-10-01 1989-09-08 Gasspüleinrichtung

Country Status (6)

Country Link
EP (1) EP0364724A1 (enrdf_load_stackoverflow)
JP (1) JPH02118014A (enrdf_load_stackoverflow)
KR (1) KR900006537A (enrdf_load_stackoverflow)
CN (1) CN1015909B (enrdf_load_stackoverflow)
DE (1) DE3833505C1 (enrdf_load_stackoverflow)
ZA (1) ZA896855B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0609562A1 (de) * 1993-02-04 1994-08-10 BECK u. KALTHEUNER, FEUERFESTE ERZEUGNISSE GmbH & CO. KG Keramischer Spülstein für Stahlbehandlungspfannen
DE19755199C1 (de) * 1997-12-12 1998-11-05 Didier Werke Ag Gasspüleinrichtung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4121329C2 (de) * 1991-06-28 1995-09-07 Veitsch Radex Ag Gasspülstein
CA2073219C (en) * 1992-07-06 1995-12-19 Keizo Aramaki Refractory for gas blowing for molten metal refining vessel
CN103184315A (zh) * 2011-12-30 2013-07-03 斗山重工业株式会社 多孔塞、利用该多孔塞的高氮钢制造装置及方法
JP6082307B2 (ja) * 2013-04-18 2017-02-15 黒崎播磨株式会社 溶融金属漏出防止装置
ES2563192T3 (es) * 2014-01-09 2016-03-11 Refractory Intellectual Property Gmbh & Co. Kg Elemento de limpieza con gas y elemento de conexión de gas correspondiente
CN111421130A (zh) * 2020-04-01 2020-07-17 东北大学 一种透气砖防渗漏装置及其防渗透方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623609C1 (de) * 1986-07-12 1988-01-21 Didier Werke Ag Gasspueleinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623609C1 (de) * 1986-07-12 1988-01-21 Didier Werke Ag Gasspueleinrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0609562A1 (de) * 1993-02-04 1994-08-10 BECK u. KALTHEUNER, FEUERFESTE ERZEUGNISSE GmbH & CO. KG Keramischer Spülstein für Stahlbehandlungspfannen
DE19755199C1 (de) * 1997-12-12 1998-11-05 Didier Werke Ag Gasspüleinrichtung

Also Published As

Publication number Publication date
JPH02118014A (ja) 1990-05-02
CN1015909B (zh) 1992-03-18
DE3833505C1 (enrdf_load_stackoverflow) 1990-02-15
ZA896855B (en) 1990-06-27
KR900006537A (ko) 1990-05-08
CN1041615A (zh) 1990-04-25

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