EP0040112B2 - Perfectionnement aux convertisseurs d'aciérie - Google Patents

Perfectionnement aux convertisseurs d'aciérie Download PDF

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Publication number
EP0040112B2
EP0040112B2 EP81400570A EP81400570A EP0040112B2 EP 0040112 B2 EP0040112 B2 EP 0040112B2 EP 81400570 A EP81400570 A EP 81400570A EP 81400570 A EP81400570 A EP 81400570A EP 0040112 B2 EP0040112 B2 EP 0040112B2
Authority
EP
European Patent Office
Prior art keywords
ring
vessel
fact
brackets
parts
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.)
Expired
Application number
EP81400570A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0040112A1 (fr
EP0040112B1 (fr
Inventor
Edouard Menu
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.)
Fives Cail Babcock SA
Original Assignee
Fives Cail Babcock SA
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
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Application filed by Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to AT81400570T priority Critical patent/ATE3650T1/de
Publication of EP0040112A1 publication Critical patent/EP0040112A1/fr
Application granted granted Critical
Publication of EP0040112B1 publication Critical patent/EP0040112B1/fr
Publication of EP0040112B2 publication Critical patent/EP0040112B2/fr
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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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4633—Supporting means

Definitions

  • the present invention relates to steelworks converters constituted by a retort carried by a belt which surrounds it with a radial clearance and is provided with two diametrically opposite pins and making it possible to tilt the retort around a horizontal axis.
  • connection between the retort and the belt must be designed to support and maintain the retort in all positions and allow its free expansion relative to the belt.
  • the retort is provided with chairs or consoles which rest on the upper face of the belt when the retort is vertical and its beak at the top, and various means are provided to take up the forces which appear when the retort is tilted.
  • a first solution consists in providing a second series of chairs fixed to the retort, under the belt, and coming to bear on the underside of the latter when the retort is tilted. With this construction, it appears hot, as a result of the different expansions of the retort and of the belt, a play between the chairs and the belt which is the cause of significant shocks during the tilting.
  • a third solution consists in holding the chairs on the belt by means of shoulder pieces or clamps fixed on the belt and which support the retort when the latter is placed vertically with the beak at the bottom. These clamps are arranged at the ends of the chairs which are therefore subject to high bending stresses. In addition, the bearing surface of the chairs on the frames is relatively small and the matting is important.
  • the purpose of the present invention is to provide a connection between retort and belt fulfilling the conditions imposed, namely: allow free expansion of the retort and maintain it in all positions, and allowing to reduce the stresses in the chairs and possibly reduce the number of chairs.
  • the converter object of the invention is of the type in which the chairs integral with the retort and resting on the upper face of the belt when the retort is vertical with the beak at the top are linked to the belt by fixing means comprising rods fastening which cross the belt parallel to its axis. It is characterized in that the fastening means consist of mushroom-shaped parts whose cap is located above the sole of the chair and whose foot, which passes through said sole, rests on the upper face of the belt and is.
  • the passages provided in the sole for the foot of said parts having dimensions greater than those of said foot to allow differential expansions of the retort and of the belt and a clearance being provided for mounting between the hat of said parts and the sole of the chairs so that the latter can slide freely on the belt in all directions and in all circumstances.
  • the mushroom-shaped parts can be pierced with an axial bore for the passage of the fixing rods, these rods being threaded at at least one of their two ends and being provided with nuts making it possible to assemble said parts and the belt with a predetermined clamping force and exert on these parts a compression force to put them in prestress.
  • the forces parallel to the axis of the retort are transmitted to the belt only by two chairs which are situated above the trunnions, each chair resting on the belt, when the retort is vertical with the beak above, in two support zones located symmetrically with respect to the plane containing the axes of the retort and the trunnions, and the connection between each chair and the belt is ensured by two mushroom-shaped pieces each fixed on one of said zones 'belt support.
  • the converter shown in the drawings comprises a retort 10 and a belt 12 provided with two pins 14 intended to be mounted on fixed bearings.
  • Each chair 16 comprises a lower sole 18 and an upper sole 20 welded to the wall of the retort and stiffening ribs connecting the two soles.
  • On the underside of the sole 18 are fixed two sliding plates 22 arranged symmetrically with respect to the plane containing the axes of the journals and the retort and the trace of which in FIG. 4 is represented by the axis X-X.
  • the plates 22 rest on sliding plates 24 fixed on the upper face of the belt.
  • the plates 22 and / or 24 are made of a metal having a low coefficient of friction or have undergone a surface treatment to reduce the friction forces and allow the free expansion of the retort.
  • each chair 16 is linked to the belt by two pieces 26 fixed to the belt, on the plates 24, by means of threaded rods 28 parallel to the axis of the retort .
  • the parts 26 are of revolution and have the shape of mushrooms; they include a foot 29 whose diameter decreases from bottom to top and a cap 30 whose diameter is significantly greater than the maximum diameter of the foot.
  • the foot is connected to the cap by a surface whose radius of curvature is relatively large to avoid a concentration of stresses in the connection area; this is located above the plane of the underside of the hat.
  • the cap of the parts 26 could be square ( Figures 9 to 13) and their base could have a cylindrical shape ( Figures 8, 9 and 11 to 13).
  • These parts can be in one piece ( Figures 5 and 10) or in two parts; in the latter case, the two parts can be assembled by welding or by embedding the end of the foot in a groove ( Figure 12) or in a circular housing ( Figure 13) of the cap.
  • the parts 26 can be mounted adjusted ( Figure 5) or with play ( Figure 8) on the rods 28.
  • the foot of the parts 26 can be embedded in the plates 24 ( Figure 8).
  • the parts 26 are pierced with an axial bore for the passage of the rods 28. These pass right through the parts 26 and the belt, and nuts 32 screwed on their ends allow the parts 26 and the plates 24 a sufficient compression force to put them in prestressing so that no play appears between the parts and the plates or between them and the belt whatever the conditions of use, in particular when the retort is overturned with the beak down.
  • the foot of the parts 26 crosses the lower sole 18 of the chairs 16 and their hat is located above said sole.
  • the openings 34 provided in the sole for the passage of the foot of the parts 26 are oblong and have dimensions clearly greater than the diameter of the foot so as to allow the retort to expand or deform freely relative to the belt. These openings could lead to the outer edge of the sole of the chairs to form notches.
  • a clearance j is formed in the cold between the cap of the parts 26 and the lower sole of the chairs; this game is chosen to be practically completely absorbed when hot, without the sole 18 being able to be clamped between the cap of the parts 26 and the sliding plates 24 and its movements relative to the belt being able to be hindered. This clearance is obtained during assembly by the use of plates 24 of suitable thickness.
  • a spur 36 is welded to the lower sole of the chairs 16, and is engaged in a notch 38 of the belt.
  • the median plane of the spurs and notches coincides with the plane XX containing the axes of the retort and the trunnions and their cooperating faces are parallel to this plane; a clearance is provided between these faces so that, when hot, the spur can slide freely in the notch.
  • a much more game significant is provided between the bottom of the notches and the opposite face of the spurs so that the spurs can never bear on the bottom of the notches and that no force parallel to the axis of the retort is transmitted to the belt by the 'spur; the latter can transmit to the belt only forces perpendicular to the plane XX.
  • the two spurs 36 transmit to the belt part of the forces perpendicular to the plane X-X acting on the retort.
  • the other part is transmitted by two other spurs 40 diametrically opposed to the spurs 36 relative to the axis of the trunnions and cooperating with notches 42 of the belt, in the same way as the spurs 36 with the notches 38.
  • the spurs 40 are welded to chairs 44 fixed to the wall of the retort by means of bolts so that it is possible to dismantle them when it is desired to separate the retort from the belt.
  • the chairs 16 and 44 are placed on either side of the belt.
  • the spurs 40 cannot bear on the bottom of the notches and can only transmit to the belt forces perpendicular to the plane X-X.
  • the chairs 44 can be in contact with the belt, but when hot, there appears a play of several millimeters due to the expansion of the retort, which is greater than that of the belt.
  • Two other chairs 46 provided with spurs 48 are fixed to the retort at two diametrically opposite points, the median plane of the spurs being the diametrical plane perpendicular to the plane X-X containing the axes of the retort and the journals. These chairs are located above the belt, when the retort is vertical, beak up, and the spurs are engaged in notches 50 formed on the upper face of the belt.
  • the cooperating faces of the spurs 48 and the notches 50 are perpendicular to the plane XX and sufficient clearance is provided between the bottom of the notches and the opposite face of the spurs so that the latter can only transmit forces parallel to the belt.
  • the spurs 36, 40 and 48 and the notches with which they cooperate make it possible to keep the axes of the belt and the retort in coincidence.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Stackable Containers (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
EP81400570A 1980-05-12 1981-04-10 Perfectionnement aux convertisseurs d'aciérie Expired EP0040112B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81400570T ATE3650T1 (de) 1980-05-12 1981-04-10 Stahlwerkkonverter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8010556 1980-05-12
FR8010556A FR2482135A1 (fr) 1980-05-12 1980-05-12 Perfectionnement aux convertisseurs d'acierie

Publications (3)

Publication Number Publication Date
EP0040112A1 EP0040112A1 (fr) 1981-11-18
EP0040112B1 EP0040112B1 (fr) 1983-06-01
EP0040112B2 true EP0040112B2 (fr) 1987-09-09

Family

ID=9241848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400570A Expired EP0040112B2 (fr) 1980-05-12 1981-04-10 Perfectionnement aux convertisseurs d'aciérie

Country Status (5)

Country Link
EP (1) EP0040112B2 (ru)
JP (1) JPS575812A (ru)
AT (1) ATE3650T1 (ru)
DE (1) DE3160383D1 (ru)
FR (1) FR2482135A1 (ru)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3410949C2 (de) * 1984-03-24 1991-01-03 Mannesmann AG, 4000 Düsseldorf Metallurgisches Gefäß, insbesondere auswechselbarer Stahlwerkskonverter
FR2591233B1 (fr) * 1985-12-11 1992-08-14 Fives Cail Babcock Perfectionnements aux convertisseurs d'acierie
JPS6414239A (en) * 1987-07-06 1989-01-18 Idemitsu Petrochemical Co Novel phosphazene compound
JPS6414240A (en) * 1987-07-06 1989-01-18 Idemitsu Petrochemical Co Novel curable resin
JPS6474230A (en) * 1987-09-17 1989-03-20 Idemitsu Petrochemical Co Cured phosphazene resin
JPS6474229A (en) * 1987-09-17 1989-03-20 Idemitsu Petrochemical Co Phosphazene composition
DE19928195A1 (de) * 1999-06-19 2000-12-21 Sms Demag Ag Konverter
CN101948941B (zh) * 2010-10-26 2011-12-21 武汉钢铁(集团)公司 转炉炉体与托圈连接装置
ITMI20120871A1 (it) * 2012-05-21 2013-11-22 Danieli Off Mecc Dispositivo di sospensione per convertitori ribaltabili ad ossigeno e convertitore provvisto di detto dispositivo di sospensione

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1197106B (de) * 1961-12-14 1965-07-22 Beteiligungs & Patentverw Gmbh In Schraeglage rotierender und um eine Querachse kippbarer Konverter
DE1293179B (de) * 1962-03-21 1969-04-24 Demag Ag Auswechselbares Gefaess fuer Metall-, insbesondere Stahlschmelzen
DE1291345B (de) * 1963-08-02 1969-03-27 Demag Ag Konverter zur Stahlerzeugung mit losem Tragring und auf das Gefaess geschweisstem Tragflansch
DE1533909B2 (de) * 1967-06-28 1975-04-10 Demag Ag, 4100 Duisburg Metallurgisches Gefäß, insbesondere kippbarer und/oder umlaufender Stahlwerkskonverter

Also Published As

Publication number Publication date
FR2482135B1 (ru) 1984-12-07
ATE3650T1 (de) 1983-06-15
EP0040112A1 (fr) 1981-11-18
FR2482135A1 (fr) 1981-11-13
DE3160383D1 (en) 1983-07-07
EP0040112B1 (fr) 1983-06-01
JPS6411683B2 (ru) 1989-02-27
JPS575812A (en) 1982-01-12

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