EP1129221B1 - Dispositif de repartition de matieres en vrac - Google Patents

Dispositif de repartition de matieres en vrac Download PDF

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Publication number
EP1129221B1
EP1129221B1 EP99955851A EP99955851A EP1129221B1 EP 1129221 B1 EP1129221 B1 EP 1129221B1 EP 99955851 A EP99955851 A EP 99955851A EP 99955851 A EP99955851 A EP 99955851A EP 1129221 B1 EP1129221 B1 EP 1129221B1
Authority
EP
European Patent Office
Prior art keywords
chute
ring
suspension
rotor
axis
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 - Lifetime
Application number
EP99955851A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1129221A1 (fr
Inventor
Emile Lonardi
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
Application filed by Paul Wurth SA filed Critical Paul Wurth SA
Publication of EP1129221A1 publication Critical patent/EP1129221A1/fr
Application granted granted Critical
Publication of EP1129221B1 publication Critical patent/EP1129221B1/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
    • C21B7/18—Bell-and-hopper arrangements
    • C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden

Definitions

  • the present invention relates to a device for distributing materials in bulk with rotating chute with variable tilt angle.
  • Such devices are for example used in loading devices tank furnaces, in particular blast furnaces, in which a rotating chute with variable tilt angle ensures load distribution inside the shaft oven.
  • They more particularly include a carcass support in which a suspension rotor is mounted so that it can be rotated about a substantially vertical axis of rotation.
  • the chute is suspended in this rotor so as to be able to pivot around its suspension axis. Swivel mechanism allows tilting to be changed of the chute during its rotation.
  • the rotor is axially crossed by a feed channel, so that loose material, which flows from a loading hopper lock, are discharged onto the rotary chute, which distributes them inside the shaft furnace.
  • the swivel mechanism includes a second rotor, which has an axis of rotation substantially coaxial with the first rotor in which the chute is suspended.
  • This second rotor can be rotated at a speed different from that of the first rotor, which makes it possible to produce an offset variable angle between the two rotors.
  • a mechanism, connected between the second rotor and the chute, then transforms a variation of the angular offset between the two rotors in a variation of the angle of inclination of the chute in its vertical pivot plane.
  • Document FR 2216350 describes a device for distributing bulk material from a blast furnace comprising two coaxial rotating tubes to support the chute. The upper end of each of these tubes is suspended in a rotating support outside the blast furnace. A death rotary supports is carried by hydraulic cylinders, so that can move one of the two tubes vertically while it is rotating. A chute is pivotally supported at the lower end of one of the two tubes and connected using a control rod at the end bottom of the other tube. By vertically moving one of the two tubes, we can thus vary the angle of inclination of the rotating chute.
  • Document JP 58210105 describes a device for distributing bulk material in which a chute is pivotally supported by a lower rotary table with a vertical feed channel.
  • a table upper is movable vertically along the vertical feed channel and is connected to the chute through a control rod.
  • the the upper table is moved vertically using a command which is locally supported on the edge of the upper table and which includes a pivoting lever driven by a rotary motor.
  • Document FR 2230246 discloses a material distribution device in bulk comprising an outer casing in which is supported a rotating ferrule.
  • An oscillating chute is supported by this ferrule rotating using trunnions.
  • the pins carry cranks which are connected by connecting rods to a first circular crown.
  • the latter is made integral in rotation with the rotating ferrule by fingers which can slide vertically in fixed guides of the rotating shell and it is carried by a second circular crown on which it is centered and freely rests in rotation by means of bearings.
  • the second circular crown is supported at several points by connecting rods which are connected to cylinder rods mounted on the outer casing.
  • One of the problems underlying the present invention is to provide a bulk material distribution device with angled rotating chute of variable inclination, in which a pivoting mechanism of the relatively simple chute, which however has excellent qualities in with regard to the transmission of the large forces necessary for pivoting from the chute.
  • Such a device comprises, in a manner known per se, a suspension rotor mounted in a support frame so that it can rotate around an axis of substantially vertical rotation.
  • the chute is suspended from this rotor so as to be able to pivot around a substantially horizontal suspension axis.
  • the rotor of suspension is traversed axially by a supply channel of the chute.
  • the device includes a very simple pivoting mechanism for change the inclination of the suspended chute in the rotor.
  • This mechanism includes first and second rings, both of which are arranged around the rotor, so that their central axis is coaxial with the axis of rotor rotation.
  • a guide device integral in rotation with the rotor, is connected between the rotor and the first ring, so that the latter can slide axially along the rotor.
  • At least one connection element connects the first ring to the chute, so as to transform a sliding vertical of the first ring in a pivoting of the chute around its pivot axis.
  • the first and second rings are connected by through a rolling ring.
  • An annular hydraulic cylinder which is arranged around the suspension rotor so that its central axis either coaxial with the latter's axis of rotation, is connected to the second ring to vary the vertical position of it.
  • the chute preferably comprises two lateral suspension arms and the rotor two lateral bearings, in which the suspension arms are suspended so that the chute can pivot about an axis substantially horizontal. Connecting rods can then connect the first ring to each of the suspension arms of the chute, so as to transform a vertical sliding of the first ring in a pivoting of the chute around of its pivot axis.
  • the guide device connected between the first ring and the rotor comprises preferably several vertical rails mounted on the rotor and rollers mounted on the first ring and guided in the rails. Excellent guidance is obtained when a pair of vertically spaced rollers is guided in each rail.
  • FIG. 1 shows schematically a distribution device bulk materials 12 with a rotating chute 14 with tilt angle variable.
  • This device is mounted on the head of a shaft furnace 10 and is part a loading facility for the latter. It is fed by a hopper lock (not shown) which opens into a central supply channel 16 of the device 12.
  • the reference sign 18 indicates the central axis of the supply channel 16, which will usually be coaxial with the central axis of the shaft furnace 10.
  • the chute 14 is shown in two tilt positions. In solid lines, it has an inclination so as to deflect the bulk material flowing through the supply channel 16 in the peripheral zone of the oven. In broken lines, its inclination is such that the bulk material is dumped in the central zone of the shaft furnace 10.
  • the bulk distribution device 12 will now be studied in more detail by referring simultaneously to Figures 1 to 3.
  • the chute 14 is provided at its upper end with two lateral suspension arms 20, 20 '(in Figure 1, the arm 20' is hidden by the arm 20).
  • In each one of these two suspension bearings 24, 24 ′ is mounted a suspension arm 20, 20 'of the trough 14, so that these two bearings 24, 24' define for the chute 14 a substantially horizontal pivot axis. This axis of pivoting is identified by the reference numeral 26 in Figure 2.
  • the rotor 22 can be likened to a tube, which surrounds the feed channel 16, carries at its lower end the bearings 24, 24 ', and has at its upper end a suspension collar 30.
  • a motor electric or hydraulic 34 (preferably a motor with a speed of variable rotation) is used to rotate the rotor 22, and therefore also the chute 14, around the axis 18.
  • a pinion 36 of the drive motor 34 meshes with a toothed crown 38, carried for example by the suspension collar 30.
  • the support carcass 32 is a sealed carcass supported itself on the head of the shaft furnace 10. It has at its upper end a plate 40, which is provided with a passage opening for a wear tube 42, which defines the supply channel 16. In a remaining annular space between the rotor 22 and the wear tube 42 is advantageously interposed a screen stationary in rotation 44 fitted with a closed cooling circuit. This screen cooling 44 is used in particular to cool the inner surface of the rotor 22.
  • the carcass 32 is provided with an annular screen 46.
  • the latter is equipped with a cooling circuit 48 on its surface upper and thermal insulation 50 on its lower surface. He defines a central opening in which a collar 52 fitted to the end is fitted lower of the suspension rotor 22.
  • the collar 52 comprises a plate upper 54, which is protected downwards by thermal insulation 56. Between the upper plate 54 and the thermal insulation 56 there remains a vacuum 58 accessible from the lateral edge of the collar 52.
  • a pipe 60 is arranged on along the central opening of the fixed annular screen 46. This pipe 60 is connected to a source of cooling gas, and it is provided on all its length of outlet orifices oriented so as to be able to inject this gas cooling through the mouths 58 in the cavities of the collar 52.
  • the collar 52 is provided with two passage slots for the suspension arms 20, 20 'of the chute 14. Since the arms 20, 20' are delimited at the two ends of the passage slots by cylindrical surfaces 62, 64, the axes of which coincide with the pivot axis of the chute 14, the arms 20, 20 ′ provide significant sealing of the slots passage for any angle of inclination of the chute 14.
  • the reference sign 66 marks a first ring arranged around the rotor 22 so that its axis central is coaxial with the axis of rotation thereof.
  • This first ring 66 is connected to the rotor 22 by means of a guide device, which allows the first ring to slide axially along the rotor 22.
  • this guide device comprises guide rails 68 1 ... 68 4 , and guide rollers 70 1 ... 70 4 .
  • the guide rails 68 1 ... 68 4 are fixed vertically to the outer wall of the rotor 22.
  • 70 4 are mounted on the first ring 66 and guided vertically in the rails 68 1 .. 68 4 to center the first ring 66 relative to the rotor 22, during its vertical sliding. Excellent centering of the ring 66 in the rails 70 1 ... 70 4 is obtained when a pair of guide rollers 70 1 , 70 1 'is associated with each guide rail 68 1 ... 68 4 (cf. Figure 1), which are mounted with vertical spacing on support arms 72, 72 'fixed to the first ring 66.
  • a connecting rod 73, 73' connects the first ring 66 to each of the suspension arms 20, 20 'of the chute 14.
  • These connecting rods 73, 73 ′ transform a vertical displacement of the first ring 66 into a pivoting of the chute 14 around its pivot axis 26.
  • the reference sign 74 marks a second ring arranged around the rotor 22 so that its central axis is coaxial with the axis of rotation 18 thereof.
  • a large-diameter rolling ring 76 connects this second ring 74 to the first ring 66.
  • This rolling ring 76 allows relative rotation of the two rings 66, 74, while ensuring the transmission of vertical forces. It follows that motionless control means in rotation can be connected to the second ring 74, to vary the vertical position of the first ring 66 on the suspension rotor 22 in rotation.
  • Figures 1 and 3 show a first execution of these means of ordered. This is described by way of comparative example and is not in conformity with the claimed invention. It is a lever mechanism actuated by a hydraulic cylinder 80 installed outside the carcass of support 32.
  • the lever mechanism comprises a lever with intermediate articulation provided with a support arm 82 and an actuating arm 84.
  • the support arm 82 has the shape of a fork, which is connected using two connecting rods 86, 86 'to the second ring 74 of two diametrically opposite points.
  • Figure 1 we see a front view of the connecting rod 86.
  • the lever comprises two suspension pivots 88, 88 'housed in suspension bearings 90, 90 '.
  • the actuating arm 84 is carried by the suspension pivot 88, which emerges in a sealed manner from the support carcass 32 through the bearing of suspension 90.
  • the hydraulic cylinder 80 is connected between the actuating arm 84 and a support arm 94, which is rigidly fixed to the carcass of support 32.
  • a shortening of the hydraulic cylinder 80 rotates the lever 82, 84 around its pivot axis 92 in the direction of the arrow 96.
  • the support arm 82 lifts, via the connecting rods 86, 86 ', the second ring 74.
  • the latter raises, by means of the ring of bearing 76, the first ring 66, which is in rotation with the suspension rotor 22 around the axis 18.
  • the connecting rods 73, 73 ′ then rotate the chute 14 around its pivot axis 26 in the direction of arrow 98. Since the center of gravity of the chute is in the initial position of the chute (i.e. the position shown in solid lines) to the right of the vertical plane containing the pivot axis 26 of the chute 14, it suffices to unload the cylinder 80 to rotate the chute in the opposite direction to the arrow 98 under the effect of its own weight.
  • the latter 74 raises, via the rolling ring 76, the first ring 66, which is in rotation with the suspension rotor 22 around the axis 18.
  • the connecting rods 73, 73 'then rotate the chute 14 about its pivot axis 26 in the direction of arrow 98.
  • the reference sign 110 marks a position indicator for hydraulic cylinders 100.
  • FIG. 5 we see an execution of the control means for varying the vertical position of the second ring 74 in accordance with the claimed invention.
  • the annular hydraulic cylinder includes an annular housing 122, which is supported vertically by a fixed ring 124, which is fixed to the support frame 32 vertically above the second ring 74.
  • Its annular piston 126, which is locked in rotation, is fixed to the second ring 74.
  • the reference sign 128 marks a cylinder position indicator annular hydraulic 120.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Chutes (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Glass Compositions (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
EP99955851A 1998-10-06 1999-10-05 Dispositif de repartition de matieres en vrac Expired - Lifetime EP1129221B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU90295 1998-10-06
LU90295A LU90295B1 (fr) 1998-10-06 1998-10-06 Dispositif de répartition de matières en vrac
PCT/EP1999/007354 WO2000020647A1 (fr) 1998-10-06 1999-10-05 Dispositif de repartition de matieres en vrac

Publications (2)

Publication Number Publication Date
EP1129221A1 EP1129221A1 (fr) 2001-09-05
EP1129221B1 true EP1129221B1 (fr) 2003-03-26

Family

ID=19731772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99955851A Expired - Lifetime EP1129221B1 (fr) 1998-10-06 1999-10-05 Dispositif de repartition de matieres en vrac

Country Status (9)

Country Link
US (1) US6390268B1 (ru)
EP (1) EP1129221B1 (ru)
CN (2) CN1208472C (ru)
AT (1) ATE235562T1 (ru)
AU (1) AU1264300A (ru)
DE (1) DE69906357T2 (ru)
LU (1) LU90295B1 (ru)
RU (1) RU2228364C2 (ru)
WO (1) WO2000020647A1 (ru)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU90863B1 (en) * 2001-12-13 2003-06-16 Wurth Paul Sa Charging device with rotary chute
DE10240219A1 (de) * 2002-08-28 2004-03-11 Claas Selbstfahrende Erntemaschinen Gmbh Vorrichtung zur Steuerung einer Überladeeinrichtung
FI121943B (fi) * 2007-11-21 2011-06-15 Outotec Oyj Jakelulaite
CN102224091B (zh) * 2008-11-24 2014-05-21 Rwe动力股份公司 用于分散松散物料的设备
EP2487440B8 (en) * 2009-10-09 2018-04-18 Nippon Steel & Sumikin Engineering Co., Ltd. Loading device
EP2530885A1 (en) 2011-06-01 2012-12-05 Alcatel Lucent Shaping component and method for transporting a data stream offered at different qualities
LU91829B1 (en) * 2011-06-21 2012-12-24 Wurth Paul Sa Distribution chute for a charging device
CN102735065B (zh) * 2012-07-13 2014-07-02 中冶赛迪工程技术股份有限公司 可调倾角的装料及振动加料装置
LU92472B1 (en) * 2014-06-06 2015-12-07 Wurth Paul Sa Heat protection assembly for a charging installation of a metallurgical reactor
LU92494B1 (fr) 2014-07-07 2016-01-08 Wurth Paul Sa Dispositif de blocage de la goulotte sur les extrémités des tourillons, dans une installation de chargement d'un four à cuve
ITUB20152684A1 (it) 2015-07-30 2017-01-30 Danieli Off Mecc Dispositivo di distribuzione materiale di carica all?interno di un altoforno
DE102016103385B4 (de) * 2016-01-08 2022-08-18 Rudolf Bischof Gmbh Abwasseraufbereitungsanlagenausrüstung
CN113247578B (zh) * 2021-05-11 2022-10-25 中冶赛迪工程技术股份有限公司 溜槽托架安装缝隙的密封方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2222386B2 (de) * 1972-05-06 1974-07-25 Dingler-Anlagenbau Gmbh, 6660 Zweibruecken Begichtungsvorrichtung für Schachtofen, insbesondere für Hochöfen
JPS5111014B2 (ru) * 1973-01-31 1976-04-08
FR2230246A5 (en) * 1973-05-16 1974-12-13 Delattre Levivier Rotating chute charger for blast or shaft furnaces - with all working parts sealed in annular chamber for protection against hot gas and dust
US4277214A (en) * 1979-12-11 1981-07-07 Nott Company Barge loading device
JPS58210105A (ja) * 1982-05-29 1983-12-07 Nippon Steel Corp 高炉装入装置に於ける炉内シユ−ト駆動装置
LU87341A1 (fr) * 1988-09-22 1990-04-06 Wurth Paul Sa Installation de chargement d'un four a cuve
ES2056672T3 (es) * 1991-04-19 1994-10-01 Wurth Paul Sa Dispositivo de distribucion uniforme de materias pulverulentas.
LU88172A1 (fr) * 1992-09-16 1994-04-01 Wurth Paul Sa Dispositif de répartition de matières poudreuses
LU88456A1 (fr) * 1994-02-01 1995-09-01 Wurth Paul Sa Dispositif de répartition de matières en vrac
LU90319B1 (fr) * 1998-11-16 2000-07-18 Wurth Paul Sa Dispositif de r-partition de mati-res en vrac avec goulotte tournante - angle d'inclinaison variable

Also Published As

Publication number Publication date
LU90295B1 (fr) 2000-04-07
US6390268B1 (en) 2002-05-21
EP1129221A1 (fr) 2001-09-05
DE69906357T2 (de) 2003-12-11
AU1264300A (en) 2000-04-26
RU2228364C2 (ru) 2004-05-10
ATE235562T1 (de) 2003-04-15
DE69906357D1 (de) 2003-04-30
WO2000020647A1 (fr) 2000-04-13
CN1641050A (zh) 2005-07-20
CN1208472C (zh) 2005-06-29
CN1250104A (zh) 2000-04-12
CN1300342C (zh) 2007-02-14

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