EP0760395A1 - Installation pour le transport de métal liquide dans la halle de coulée d'un four à cuve et procédé pour le service de cette installation - Google Patents

Installation pour le transport de métal liquide dans la halle de coulée d'un four à cuve et procédé pour le service de cette installation Download PDF

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Publication number
EP0760395A1
EP0760395A1 EP96107534A EP96107534A EP0760395A1 EP 0760395 A1 EP0760395 A1 EP 0760395A1 EP 96107534 A EP96107534 A EP 96107534A EP 96107534 A EP96107534 A EP 96107534A EP 0760395 A1 EP0760395 A1 EP 0760395A1
Authority
EP
European Patent Office
Prior art keywords
pipe
main channel
tap hole
pipe section
slide
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
Application number
EP96107534A
Other languages
German (de)
English (en)
Other versions
EP0760395B1 (fr
Inventor
Peter Dr.-Ing. Heinrich
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.)
SMS Siemag AG
Original Assignee
MAN Gutehoffnungshutte GmbH
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 MAN Gutehoffnungshutte GmbH filed Critical MAN Gutehoffnungshutte GmbH
Publication of EP0760395A1 publication Critical patent/EP0760395A1/fr
Application granted granted Critical
Publication of EP0760395B1 publication Critical patent/EP0760395B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/14—Discharging devices, e.g. for slag

Definitions

  • the invention relates to a device for liquid metal transport in the casting hall of a shaft furnace, in particular a blast furnace, and a method for operating this device, which consists of at least one main trough with a fox installed after a tap hole in the blast furnace and downstream drainage channels with a transfer station into the liquid metal transport vessels or trolley exists.
  • Main channels have been designed as so-called pool channels with relatively large dimensions, in which a liquid remnant of pig iron always remains.
  • Typical for large blast furnaces are channels of 12 - 15 m in length and 2.0 to 2.5 m in width.
  • Such large and heavy channels with a weight of up to 250 t are new difficult to change and require the heaviest cranes to operate, which in turn run on a heavy hall structure. That is why it has been decided in many places not to change the main channel, but to make it stationary.
  • the quick-change trough known from EP 0 279 165 B1 made progress here.
  • This gutter is designed for a change option of less than 8 hours, so that the change can be made within a normal repair shift. No heavy crane is required to change; the worn gutter is lowered onto a special vehicle with the aid of hydraulic lifting devices, a newly fed gutter is picked up by a second vehicle using the same lifting devices. The gutter is cooled, broken out and readjusted under workshop conditions outside the blast furnace area.
  • the liquid metal first flows through a siphon (Fuchs) to separate pig iron and slag; after that, the slag-free pig iron flows through open, but mostly covered with plates or hoods, like the main channel, and covered with ff material to the various parking spaces of the pig iron transport vehicles.
  • a siphon Fus
  • the slag-free pig iron flows through open, but mostly covered with plates or hoods, like the main channel, and covered with ff material to the various parking spaces of the pig iron transport vehicles.
  • dust sheets protected with ff material are pulled one after the other, or so-called tipping troughs come with electric or hydraulic drive.
  • the slag separated from the fox in turn leaves the main channel and, via open channels or channels covered with hoods, either reaches a slag pan, a pelletizer with water or solidifies through natural cooling in a slag bed made of sand.
  • Maintaining and keeping the pig iron and slag troughs clean is the main cause of the heavy manual work that still occurs in foundries when machines are used wherever possible.
  • Red dust (Fe oxide) is produced particularly at the tap hole, the tipping channel and at the pig iron inlet in the transport vessel, but to a lesser extent also at the pig iron and slag channels covered with hoods and the main channel. This forms as a result of the hot pig iron coming into contact with the surrounding air.
  • dedusting systems for high suction volumes are installed using the technology that is common today. These dedusting systems initially consist of a system for collecting the dusts (hoods, pipes), with several switchable strands being provided on blast furnaces with several tap holes. This in turn requires fittings with large diameters, corresponding actuators and control logic.
  • the extracted air amounts are in the order of a few 100,000 Nm 3 / h to well over 1.0 million Nm 3 / h.
  • intensive suction the contact of the hot pig iron with air is naturally intensified and the amount of dust per ton of pig iron increases.
  • a fan station must be provided in front of or behind the filters, the drive power of which can easily reach the order of a few MW, depending on the amount of suction and pressure loss in the system.
  • the cleaned gas is released into the atmosphere via a chimney.
  • DE 39 03 444 C1 describes a method and a device for preventing air contact of pig iron by fogging with an inert gas, e.g. B. nitrogen is known, in which the troughs leading the liquid metal are covered by the tap opening of the metallurgical furnace to form the smallest possible volume, not flowed through by the liquid metal free interior, the transfer point in which the liquid metal is passed from the transport and drain trough into a pouring vessel is shielded largely gas-tight, with both the free interior of the covered drain channels and the largely gas-tightly shielded interior of the transfer point and the interior of the pouring vessel are purged with inert gas.
  • the liquid metal discharge jet is additionally shielded from the outlet opening into the pouring vessel by an annular pressure-inert gas jacket which prevents air from entering.
  • the device consists of at least one transport and drainage channel installed at a tap hole of the metallurgical furnace, a transfer station with a swivel or tilting channel and a distribution system for the liquid metal into a pouring vessel, each transport and drainage channel over its entire length one or more covering hoods has the smallest possible free, d. H. do not form the interior through which liquid metal flows.
  • the transfer stations including the outlet openings are largely gas-tight and shielded by a closed housing.
  • Nozzles for the supply of inert gas are provided in the cover hoods and in the transfer station housing.
  • a disadvantage of this tapping system is the thermals triggered by the high temperature of the pig iron, which requires constant replenishment of the inert gas.
  • the present invention has therefore set itself the task of ensuring a timely, safe and quick opening and closing of blast furnace tap holes, to suppress the formation of dust in the areas of tap hole, main channel, pig iron and slag channels, a reduction in manual work in Reach the gutter area and contribute to a reduction in investment and operating costs.
  • a pipe section lined with ff material is arranged between the tapping on the furnace and the main channel.
  • a stationary drilling machine and a stationary tamping machine are arranged on both sides of the pipe section.
  • the pipe section itself is equipped with two connecting pieces through which the drill of the drilling machine or the trunk of the tamping machine is guided.
  • a ceramic slide closure is installed, as is known from steelwork technology as a closure for steel ladles.
  • Inert gas connections with control valves are arranged directly in front of and behind the slide closure.
  • the ceramic slide valve is opened for tapping and then closed again.
  • the tap hole is flushed out of pig iron via the inert gas connection and this state is maintained by automatically setting a small inert gas flow rate. This prevents the cast iron from solidifying in the tap hole and blocking the slide lock.
  • the ceramic slide valve is closed at the end of the tapping and the tap hole is flushed with inert gas through the connection of pig iron.
  • the stationary drill is operated; this first drills a connection piece of hardened stuffing with which it is flanged to the pipe section itself.
  • the drill then crosses the tap hole and drills a channel into the hardened stuffing compound, which fills the other connecting piece with which the stationary tamping machine is flanged to the pipe section.
  • the drill is then pulled back to its original position and the tamping machine is operated.
  • the stuffing fills the tap hole towards the blast furnace; at the same time, stuffing material penetrates towards the stationary drilling machine as far as the drill tip, and at the same time the stuffing material also moves onto the slide closure, but without fully reaching the ceramic slide plate, since an inert gas cushion forms in front of it.
  • a second drill which is arranged above the main channel in an inclined position - inclination approx. 6 ° according to the inclination of the tap hole - is actuated after opening the ceramic slide valve.
  • This drill drills the tap hole through the pipe section and through the ff lining located inside the tank. As soon as the tap hole is free, the drill is withdrawn and the flap is closed. In order to collect the unavoidable dust that occurs during this drilling process, a dedusting line is connected to the suction hood small filter system, operated only for the duration of the drilling process.
  • the main channel is covered by a cover hood.
  • the connection between the main channel and cover hood is carried out in a manner known per se so that the access of outside air to the pig iron bath located within the main channel is largely suppressed, for. B. by means of a sand cup.
  • the cover hood can be raised and lowered mechanically and moved laterally to provide quick access to the main channel for inspections and any repairs.
  • a siphon fox
  • fox a siphon
  • the liquid metal in pig iron and slag due to their different densities.
  • the slag arrives in a conventional way after leaving the main channel via open or covered channels to a pelletizer, to a slag pan, to a slag pit or a slag bed, the liquid pig iron is no longer transported to the places where the pig iron transport vehicles are located usual, in gutters.
  • multilayer metal pipes lined with ff material are used, which have an insulating layer, a permanent lining and a wear lining arranged from the outside inwards. These metal tubes are divided into lengths of 1 - 2 m, so that the relatively low weight makes handling with light lifting equipment possible.
  • each pipe length has a metallic pin that penetrates the entire ff infeed from the inside out and is in contact with the molten pig iron as it flows through the pipe length.
  • the pipe system is provided with appropriate branches, so that it can supply all of the designated places with pig iron.
  • the hot metal flow is switched from one parking space to the other by means of remote-operated ceramic slide locks.
  • Such heating has the advantage that, on the one hand, the pig iron does not solidify and, on the other hand, there is no change in temperature for the refractory lining.
  • another ceramic slide closure is provided at the beginning of the pipe system behind the main channel. With this the pipe system to the main channel can be shut off. This makes it possible to heat the pipe system by a burner, ensuring that the hot burner gases heat the pipe system along its entire length; they escape at the elbows at the place where the pig iron transport vehicles are parked and not towards the main channel.
  • the guidance of the molten pig iron in a completely encapsulated and filled pipeline system prevents the entry of air and thus the creation of dust on this part of the transport route.
  • an inert gas curtain is used here in a manner known per se.
  • the main channel is designed as a quick change channel. No heavy lifting equipment is required to change them, but the used main channel and the new main channel are lowered using a hydraulic lifting device, as is known, for example, from EP 0 279 165 B1.
  • the cooling, breaking out and repositioning of the heavy swap gutter takes place outside the casting hall under workshop conditions.
  • the measures described above reduce the amount of heat work and make working conditions more efficient.
  • FIG. 1 shows a top view of the tapping system or of one of the liquid metal transport systems of a blast furnace (1) with a tapping (1.2) with a tap hole (1.3) arranged in the blast furnace shell (1.1).
  • a pipe section (3) with a connection piece (3.1) for a stationary drilling machine (4) and a connection piece (3.2) for a stationary tamping machine (5) is flanged to the tapping (1.2).
  • a slide (6) with a ceramic plate and the inlet opening (2.1) of the main channel (2) then adjoin the pipe section (3).
  • a number of pipe sections (12), which are lined with ff material, are gas or airtight at the outlet opening (2.2) connected, which open into a T-shaped pipe section (13).
  • a slide (6a) and (6b) are arranged between the downward pipe elbows (14) with an inert gas curtain (17) in order to transfer the molten pig iron to one of the positions (16a , 16b) to direct where it can drain in the pig iron transport wagon (18).
  • Inert gas feeds (7) are arranged on the pipe section (3) upstream and downstream of the slide (6) at the inlet opening (2.1) of the main channel (2).
  • a further inert gas supply (7) is arranged at the outlet opening (2.2) of the main channel (2).
  • a burner (15) for heating the pipe sections (12) is arranged in the first pipe section after the main channel (2).
  • Fig. 2 shows a longitudinal section through the front part of the liquid transport system.
  • a pipe section (3) with connecting pieces (3.1, 3.2) is flanged to the tap (1.2) in a gas-tight manner, to which a second pipe section (3) with a slide (6) is connected.
  • This second pipe section (3) is also connected gas-tight to the inlet opening (2.1) of the main channel (2).
  • a pipe section (12) with a slide (6) is flanged to the outlet opening (2.2) of the main channel (2), to which further pipe sections (12) are added if necessary.
  • a T-shaped pipe section (13) is arranged, which allows the pig iron to flow into one of two pig iron transport wagons.
  • the main channel (2) is designed as a quick change channel. After the ff lining has worn out, it is lowered from the operating position at the level of the tapping platform onto a transport vehicle standing in the hut via pulling elements, not shown, which slide down and up on pull rods. The tie rods are fastened to the support beams of the main channel (2).
  • Fig. 3 shows the cross section through a pipe section (3/12) supplied with ff material.
  • the ff material consists of the insulating layer (12.1), the permanent lining (12.2) and the wear lining (12.3).
  • a wire mesh (12.4) is inserted, which is connected to an electrical monitoring device via a metallic pin (12.5) in order to be able to check the condition of the wear lining (12.3).
  • Fig. 4 shows devices for sealing two pipe sections (3) or (12).
  • a pipe clamp (3.3) is placed around the flanges of the two pipe sections (3) or (12), which is provided on each side with a feed line (3.4) with shut-off valve (3.5) and a sealing compound (3.7) in the remaining free gap between the brick pipe sections (3) or (12).
  • a plastic plug (3.6) is inserted into the free cross-section of the wear lining (12.3) before joining the pipe sections (3) or (12) to prevent the sealing compound (3.7) from blocking the free cross-section of the wear lining (12.3) or constricts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Continuous Casting (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Manufacture Of Iron (AREA)
EP96107534A 1995-08-31 1996-05-11 Installation pour le transport de métal liquide dans la halle de coulée d'un four à cuve et procédé pour le service de cette installation Expired - Lifetime EP0760395B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19532040 1995-08-31
DE19532040A DE19532040C2 (de) 1995-08-31 1995-08-31 Vorrichtung zum Flüssigmetall-Transport in der Gießhalle eines Schachtofens und Verfahren zum Betrieb dieser Vorrichtung

Publications (2)

Publication Number Publication Date
EP0760395A1 true EP0760395A1 (fr) 1997-03-05
EP0760395B1 EP0760395B1 (fr) 2001-11-14

Family

ID=7770842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96107534A Expired - Lifetime EP0760395B1 (fr) 1995-08-31 1996-05-11 Installation pour le transport de métal liquide dans la halle de coulée d'un four à cuve et procédé pour le service de cette installation

Country Status (12)

Country Link
US (1) US5673901A (fr)
EP (1) EP0760395B1 (fr)
JP (1) JPH09125117A (fr)
KR (1) KR100426672B1 (fr)
AT (1) ATE208830T1 (fr)
AU (1) AU698803B2 (fr)
BR (1) BR9603635A (fr)
CA (1) CA2182246A1 (fr)
DE (2) DE19532040C2 (fr)
ES (1) ES2167483T3 (fr)
TW (1) TW302312B (fr)
ZA (1) ZA966673B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101942536B (zh) * 2009-07-07 2012-10-24 范威 高炉铁口用多通道旋转接头

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3011366B2 (ja) * 1995-10-26 2000-02-21 株式会社ノリタケカンパニーリミテド 膜形成素材を含む基板の焼成方法および装置
US5777705A (en) * 1997-05-30 1998-07-07 International Business Machines Corporation Wire bond attachment of a liquid crystal display tile to a tile carrier
CN102417942A (zh) * 2010-09-27 2012-04-18 周久乐 一种高炉炼铁虹吸出铁装置
CN113579176B (zh) * 2021-07-30 2022-11-29 湖南精量重工科技有限公司 一种铸造高精度的工件铸造方法
CN114653932A (zh) * 2022-03-10 2022-06-24 重庆赛迪奇智人工智能科技有限公司 鱼雷罐车开关盖装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2619534B1 (de) * 1976-05-04 1977-11-10 Didier Werke Ag Abflusseinrichtung fuer metalllurgische oefen
GB2049136A (en) * 1979-05-07 1980-12-17 Metacon Ag Slide closure for the tapping channel of a molten metal container
GB2084705A (en) * 1980-09-24 1982-04-15 Jones & Laughlin Steel Corp Blast furnace casting system and method of suppressing theformation of pollutants in such a system
US4475720A (en) * 1983-03-14 1984-10-09 Broom Gilbert R Casthouse emission control system
WO1990008842A1 (fr) * 1989-02-06 1990-08-09 Klöckner Stahl Gmbh Procede permettant d'eviter la formation de gaz de fumee lors de processus metallurgiques et du transport de metaux fondus d'un recipient metallurgique a des recipients de coulee et dispositif de transport de metaux fondus d'un four metallurgique a un recipient de coulee

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262692A (en) * 1966-07-26 Furnace botting and tapping apparatus
GB1064617A (en) * 1965-07-08 1967-04-05 Huttenwerksanlagen Ges Apparatus for tapping metal from furnaces
US3365187A (en) * 1965-10-20 1968-01-23 Bethlehem Steel Corp Runner system for blast furnace
US4208041A (en) * 1970-09-15 1980-06-17 Abrashev Georgi I Metallurgical apparatus
GB1603119A (en) * 1977-11-21 1981-11-18 Lodge Cottrell Ltd Fume containment
GB1596442A (en) * 1978-02-07 1981-08-26 Lydmet Ltd Casting of long hollow objects
US4355788A (en) * 1980-03-24 1982-10-26 Bate Micheal D Hot metal runner system with air pollution controls
US4354668A (en) * 1981-08-20 1982-10-19 Jones & Laughlin Steel Incorporated Method and apparatus for determining completion of a cast in blast furnace casthouse pollution suppression system
DE3624266A1 (de) * 1986-07-18 1988-01-21 Gutehoffnungshuette Man Vorrichtung zum auswechseln von hauptabstichrinnen an hochoefen
DE3705099A1 (de) * 1987-02-18 1988-09-01 Gutehoffnungshuette Man Vorrichtung zum auswechseln von abstichrinnen an schachtoefen
JP2671431B2 (ja) * 1988-09-14 1997-10-29 株式会社豊田自動織機製作所 超電導可逆可変インダクタ
DE3903444C1 (en) * 1989-02-06 1990-02-15 Kloeckner Stahl Gmbh Method and apparatus for transporting liquid metal from a metallurgical furnace to a casting vessel
DE3904415C1 (fr) * 1989-02-14 1990-04-26 Intracon Handelsgesellschaft Fuer Industriebedarf M.B.H., 6200 Wiesbaden, De
DE4033482C1 (fr) * 1990-10-20 1992-02-20 Kloeckner Stahl Gmbh, 4100 Duisburg, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2619534B1 (de) * 1976-05-04 1977-11-10 Didier Werke Ag Abflusseinrichtung fuer metalllurgische oefen
GB2049136A (en) * 1979-05-07 1980-12-17 Metacon Ag Slide closure for the tapping channel of a molten metal container
GB2084705A (en) * 1980-09-24 1982-04-15 Jones & Laughlin Steel Corp Blast furnace casting system and method of suppressing theformation of pollutants in such a system
US4475720A (en) * 1983-03-14 1984-10-09 Broom Gilbert R Casthouse emission control system
WO1990008842A1 (fr) * 1989-02-06 1990-08-09 Klöckner Stahl Gmbh Procede permettant d'eviter la formation de gaz de fumee lors de processus metallurgiques et du transport de metaux fondus d'un recipient metallurgique a des recipients de coulee et dispositif de transport de metaux fondus d'un four metallurgique a un recipient de coulee

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101942536B (zh) * 2009-07-07 2012-10-24 范威 高炉铁口用多通道旋转接头

Also Published As

Publication number Publication date
KR970010979A (ko) 1997-03-27
JPH09125117A (ja) 1997-05-13
AU6069596A (en) 1997-03-06
DE59608182D1 (de) 2001-12-20
DE19532040A1 (de) 1997-03-06
US5673901A (en) 1997-10-07
EP0760395B1 (fr) 2001-11-14
TW302312B (fr) 1997-04-11
KR100426672B1 (ko) 2004-06-24
BR9603635A (pt) 1998-05-19
ES2167483T3 (es) 2002-05-16
ZA966673B (en) 1997-02-17
DE19532040C2 (de) 1999-05-27
CA2182246A1 (fr) 1997-03-01
AU698803B2 (en) 1998-11-05
ATE208830T1 (de) 2001-11-15

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