EP0126260B1 - Mécanisme compact de pivotement ayant un grand angle de pivotement pour un canon obturateur d'un four à cuve - Google Patents

Mécanisme compact de pivotement ayant un grand angle de pivotement pour un canon obturateur d'un four à cuve Download PDF

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Publication number
EP0126260B1
EP0126260B1 EP84103906A EP84103906A EP0126260B1 EP 0126260 B1 EP0126260 B1 EP 0126260B1 EP 84103906 A EP84103906 A EP 84103906A EP 84103906 A EP84103906 A EP 84103906A EP 0126260 B1 EP0126260 B1 EP 0126260B1
Authority
EP
European Patent Office
Prior art keywords
jib
hydraulic cylinder
intermediate frame
accordance
cylinders
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
EP84103906A
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German (de)
English (en)
Other versions
EP0126260A1 (fr
EP0126260B2 (fr
Inventor
Arthur Cooper
Pierre Mailliet
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.)
Paul Wurth SA
Original Assignee
Paul Wurth 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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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19730081&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0126260(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Paul Wurth SA filed Critical Paul Wurth SA
Priority to AT84103906T priority Critical patent/ATE23562T1/de
Publication of EP0126260A1 publication Critical patent/EP0126260A1/fr
Application granted granted Critical
Publication of EP0126260B1 publication Critical patent/EP0126260B1/fr
Publication of EP0126260B2 publication Critical patent/EP0126260B2/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
    • C21B7/12—Opening or sealing the tap holes

Definitions

  • the invention relates to a compact shaft furnace stuffing gun drive for large swivel angles, which is arranged on a cantilever and can be swiveled around a support column such that it describes an essentially low-flat, continuous path when swiveling from a rest position into a working position and vice versa.
  • Hydraulic cylinders are usually used for pivoting the boom, which according to the prior art basically produce the pivoting movement in two arrangements, depending on the desired pivoting angle.
  • this swivel angle is not greater than 120 °, at most 130 °, it is sufficient to let the hydraulic cylinder act between a fixed point and a pivot point on the boom. With such an arrangement, a theoretical swivel angle of almost 180 ° could be generated, however, the contact pressure of the stuffing gun mouthpiece against the tap hole to be closed can no longer be applied sufficiently large. With this arrangement, therefore, the swivel angle is usually limited to ⁇ 90 °.
  • the advantage of this arrangement is the simple structure, but because of the relatively small pivoting angle, the stuffing gun cannot be removed from the tapping channel as far as would be desirable due to the high temperatures prevailing during the tapping process seen disturbing.
  • a lever system can be provided between a fixed point and a pivot point on the boom, on which the hydraulic cylinder engages and by means of its kinematics the movement amplitude of the cylinder is reflected in an enlarged swivel angle. In this way, swivel angles of 180 ° and more can be achieved with a sufficiently large pressing force of the stuffing gun mouthpiece against the tap hole.
  • FIG. 1 shows a taphole tamping machine system 10 with a tamping cannon 12 which is suspended on a pivotable cantilever arm 14.
  • the latter is rotatably mounted on a support column 16 (FIG. 2), preferably inclined to the vertical (not shown), for example by means of a roller bearing 18, 20.
  • a support column 16 (FIG. 2), preferably inclined to the vertical (not shown), for example by means of a roller bearing 18, 20.
  • a guide rod 22 is shown symbolically by a dash-dot line, which is articulated on the one hand on the stuffing gun 12 and on the other hand at a fixed point 24. Details about the kinematics this mutual arrangement of boom and guide rod 22 can be found in the above-mentioned patent.
  • two, preferably identical, hydraulic cylinders 26 and 28 are provided for pivoting the extension arm 14.
  • the first hydraulic cylinder 26 acts between a fixed point 30 and a pivotable about the axis 32 of the support column 16 formed from two parallel steel plates 34, 36 Frame 38.
  • the fixed point 30 is the end point of a cantilever double arm 40, which projects between the two steel plates 34, 36 and is attached to a column 42, which in turn is anchored to a common foundation frame 44 for the support column 16 and this column 42.
  • FIG. 3 is to be understood as that part of FIG. 2 which lies behind the hydraulic cylinder 26, but the piston rod end 46 is shown rotated by approximately 90 ° around the fixed point 30.
  • the second hydraulic cylinder 28 in turn acts between the frame 38, between the two parallel plates 34, 36 of which it is arranged, like the first cylinder 26, and a pivot point 48 on the extension arm 14.
  • the frame 38 together with the second cylinder 28 and extension arm 14 can be pivoted through a certain angle by actuating the first cylinder 26, and the extension arm 14 by actuating the second cylinder 28 (with stuffing cannon 12) by a further, certain angle with respect to the frame 38.
  • the frame 38 thus has a function like a gear and is therefore referred to below as a gear frame.
  • both cylinders are preferably acted upon in parallel with hydraulic fluid, so that the hydraulic circuitry is limited to a minimum.
  • this can be achieved by quite simple means, e.g. B. by making the bearing frictional resistances, which must be overcome by the individual cylinders when swiveling, of different sizes. From Figure 2 z. B.
  • the cantilever arm 14 is supported on a roller sleeve 50 on the support column 16, while the bearing between this sleeve 50 and the countershaft 38 is a sliding bearing.
  • the cylinder that only has to overcome the rolling bearing resistances, and that is cylinder 26, is extended first.
  • the bearing between the countershaft frame 38 and the sleeve 50 can of course also be designed as a roller bearing. In this case, the bearing friction resistance is approximately the same for both cylinders. If, however, a certain working sequence of the cylinders is to be maintained, a throttle need only be provided on the supply line for the cylinder to be extended last.
  • FIGS. 6, 7 and 8 show an embodiment variant of the proposed swivel drive with two preferably identical hydraulic cylinders and a countershaft frame.
  • a first hydraulic cylinder 126 acts between a fixed point 130 and a counter frame 138
  • a second hydraulic cylinder 128 acts between the counter frame 138 and the extension arm 114.
  • the difference between this and the first described embodiment is essentially that the first hydraulic cylinder 126 is arranged approximately parallel to the elongated configuration of the countershaft 138, and the second hydraulic cylinder 128 approximately parallel to the extension arm 114, while in the embodiment according to FIGS. 4 and 5, the hydraulic cylinders 26, 28 and the countershaft frame 36 are arranged axially symmetrically to one another, i. H.
  • FIGS. 6, 7 and 8 The mode of operation in the embodiment according to FIGS. 6, 7 and 8 remains the same as in the first case, i. H. Both cylinders are preferably acted upon in parallel with hydraulic fluid and extend and retract either simultaneously or, as described above, in a specific sequence.
  • Figure 7 shows z. B, the stuffing gun position after extension of the first hydraulic cylinder 126, while Figure shows the stuffing gun 112 in the working position, i. H. after extending the two hydraulic cylinders 126 and 128.
  • the two plates 34 and 36 are rigidly connected to one another by suitable means.
  • These funds can e.g. B. be spacers with which these plates are screwed, for example (indicated by 33 in Figure 1).
  • the support column 16 ( Figure 2) is preferably inclined to the vertical. More about the advantages of this arrangement and also an advantageous suspension of the stuffing gun 12 on the boom 14 can be found in DE-PS 2840181.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Actuator (AREA)
  • Blast Furnaces (AREA)
  • Lift Valve (AREA)
  • Ink Jet (AREA)
  • Replacement Of Web Rolls (AREA)
  • Shovels (AREA)
  • Processing Of Solid Wastes (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Furnace Details (AREA)

Claims (6)

1. Mécanisme compact pour le pivotement de canons obturateurs pour four à cuve permettant de grands angles de pivotement, qui est disposé sur une potence (14, 114) et une colonne de support (16, 116) avec possibilité de pivotement, de manière à décrire un trajet essentiellement surbaissé et continu au cours du pivotement entre une position de repos et une position de travail, et inversement, caractérisé par un premier cylindre hydraulique (26, 126) qui agit entre un point fixe (30, 130) et un châssis de transmission intermédiaire (38, 138) pivotant autour de la colonne de support (16, 116) et un second cylindre hydraulique (28, 128) qui agit entre le châssis de transmission intermédiaire pivotant (38, 138) et la potence (14, 114).
2. Mécanisme de pivotement selon la revendication 1, caractérisé en ce que le châssis de transmission intermédiaire (38, 138) est constitué essentiellement de deux plaques d'acier (34, 134, 36, 136) disposées parallèlement l'une au-dessus de l'autre et en ce que les cylindres hydrauliques (26, 126, 28, 128) pénètrent entre ces plaques d'acier (34, 134, 36, 136) et sont articulés à celles-ci par un de leurs deux points d'articulation.
3. Mécanisme de pivotement selon la revendication 1 et 2, caractérisé en ce que le châssis de transmission intermédiaire (38, 138) est monté, avec possibilité de pivotement, pour la potence (14, 114) sur une douille rotative (50).
4. Mécanisme de pivotement selon les revendications 1 et 2, caractérisé en ce que le premier cylindre hydraulique (126) est disposé essentiellement parallèlement à la longueur du châssis de transmission intermédiaire (138) et que le second cylindre hydraulique (128) est disposé essentiellement parallèlement à la potence (114).
5. Mécanisme de pivotement selon les revendications 1 et 2, caractérisé en ce que les cylindres hydrauliques (26 et 28) sont disposés avec symétrie axiale (31) par rapport au châssis de transmission intermédiaire (38).
6. Mécanisme de pivotement selon la revendication 2, caractérisé en ce que les plaques d'acier (34. 36, 134, 136) sont reliées rigidement entre elles par des entretoises (33. 133).
EP84103906A 1983-04-21 1984-04-07 Mécanisme compact de pivotement ayant un grand angle de pivotement pour un canon obturateur d'un four à cuve Expired - Lifetime EP0126260B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103906T ATE23562T1 (de) 1983-04-21 1984-04-07 Kompakter schachtofen-stopfkanonenschwenkantrieb fuer grosse schwenkwinkel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU84764 1983-04-21
LU84764A LU84764A1 (de) 1983-04-21 1983-04-21 Kompakter schachtofen-stopfkanonenschwenkantrieb fuer grosse schwenkwinkel

Publications (3)

Publication Number Publication Date
EP0126260A1 EP0126260A1 (fr) 1984-11-28
EP0126260B1 true EP0126260B1 (fr) 1986-11-12
EP0126260B2 EP0126260B2 (fr) 1990-12-27

Family

ID=19730081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103906A Expired - Lifetime EP0126260B2 (fr) 1983-04-21 1984-04-07 Mécanisme compact de pivotement ayant un grand angle de pivotement pour un canon obturateur d'un four à cuve

Country Status (11)

Country Link
US (1) US4544143A (fr)
EP (1) EP0126260B2 (fr)
JP (1) JPS59205407A (fr)
AT (1) ATE23562T1 (fr)
AU (1) AU565525B2 (fr)
CA (1) CA1226435A (fr)
DE (1) DE3461299D1 (fr)
ES (1) ES8503831A1 (fr)
IN (1) IN160951B (fr)
LU (1) LU84764A1 (fr)
ZA (1) ZA842536B (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117019A (en) * 1990-05-17 1992-05-26 Exxon Research And Engineering Company Molybdenum phosphate compositions
LU87926A1 (fr) * 1991-04-26 1992-11-16 Wurth Paul Sa Procede de bouchage du trou de coulee d'un four a cuve et machine de bouchage pour la mise en oeuvre de ce procede
DE19630078C2 (de) * 1996-07-26 2003-03-27 Dango & Dienenthal Maschbau Hubvorrichtung für Stichloch-Bohrmaschinen
LU90078B1 (de) * 1997-06-12 1998-12-14 Wurth Paul Sa Schwenkvorrichtung mit Ausleger
US6974787B2 (en) 1998-08-31 2005-12-13 Exxonmobil Corporation Gasoline sulfur reduction in fluid catalytic cracking
US6846403B2 (en) * 1998-12-28 2005-01-25 Mobil Oil Corporation Gasoline sulfur reduction in fluid catalytic cracking
US20020153283A1 (en) * 1998-12-28 2002-10-24 Arthur W Chester Gasoline sulfur reduction in fluid catalytic cracking
US6299830B2 (en) 1998-09-22 2001-10-09 Meltran, Inc. Apparatus and method for tapping a furnace
US7803267B2 (en) * 1998-12-28 2010-09-28 W. R. Grace & Co.-Conn. Gasoline sulfur reduction in fluid catalytic cracking
US6663825B2 (en) 1999-07-19 2003-12-16 Louis A. Grant, Inc. Method and apparatus for installing or replacing a furnace tap hole insert
US6566569B1 (en) 2000-06-23 2003-05-20 Chevron U.S.A. Inc. Conversion of refinery C5 paraffins into C4 and C6 paraffins
US6441263B1 (en) 2000-07-07 2002-08-27 Chevrontexaco Corporation Ethylene manufacture by use of molecular redistribution on feedstock C3-5 components
US7507686B2 (en) * 2002-12-03 2009-03-24 W. R. Grace & Co. - Conn. Gasoline sulfur reduction in fluid catalytic cracking
US9169450B2 (en) * 2008-02-12 2015-10-27 Chevron U.S.A. Inc. Method of upgrading heavy hydrocarbon streams to jet and diesel products
CN102839245A (zh) * 2012-09-04 2012-12-26 无锡市长江液压缸厂 液压泥炮的曲臂与液压缸连接结构
BR112019002119B1 (pt) 2016-08-01 2022-10-25 W.R. Grace & Co.-Conn Processos para preparar particulado sólido de alumina peptizada de fluxo livre e catalisadores fluidizáveis
US11529617B2 (en) 2020-08-12 2022-12-20 Chevron Phillips Chemical Company, Lp Catalyst supports and catalyst systems and methods
US11827589B2 (en) 2021-10-04 2023-11-28 Lyondell Chemical Technology, L.P. Methods for isobutylene conversion to C5+ compounds

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT327247B (de) * 1970-11-27 1976-01-26 Wurth Anciens Ets Paul Vorrichtung zum stopfen des stichloches eines schachtofens
US3709477A (en) * 1971-07-16 1973-01-09 Dango & Dienenthal Kg Mechanism for swinging a taphole gun
LU78209A1 (fr) * 1977-09-30 1978-01-23
LU78756A1 (fr) * 1977-12-22 1978-04-17
DE2822605C2 (de) * 1978-05-24 1987-01-15 Dango & Dienenthal Maschinenbau GmbH, 5900 Siegen Schwenkvorrichtung, insbesondere für Stichlochstopfmaschinen
US4247088A (en) * 1978-10-05 1981-01-27 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Mud gun

Also Published As

Publication number Publication date
DE3461299D1 (en) 1987-01-02
ES532161A0 (es) 1985-03-16
EP0126260A1 (fr) 1984-11-28
US4544143A (en) 1985-10-01
ZA842536B (en) 1984-12-24
CA1226435A (fr) 1987-09-08
EP0126260B2 (fr) 1990-12-27
ES8503831A1 (es) 1985-03-16
IN160951B (fr) 1987-08-15
LU84764A1 (de) 1983-11-23
JPH0346526B2 (fr) 1991-07-16
AU565525B2 (en) 1987-09-17
JPS59205407A (ja) 1984-11-21
ATE23562T1 (de) 1986-11-15
AU2714684A (en) 1984-10-25

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