EP1399597B1 - Vorrichtung zum beschicken eines schachtofens - Google Patents

Vorrichtung zum beschicken eines schachtofens Download PDF

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Publication number
EP1399597B1
EP1399597B1 EP02753069A EP02753069A EP1399597B1 EP 1399597 B1 EP1399597 B1 EP 1399597B1 EP 02753069 A EP02753069 A EP 02753069A EP 02753069 A EP02753069 A EP 02753069A EP 1399597 B1 EP1399597 B1 EP 1399597B1
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EP
European Patent Office
Prior art keywords
annular
suspension rotor
rotating ring
ring
rotating
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
EP02753069A
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English (en)
French (fr)
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EP1399597A1 (de
Inventor
Emile Lonardi
Giovanni Cimenti
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Paul Wurth SA
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Paul Wurth SA
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Publication of EP1399597A1 publication Critical patent/EP1399597A1/de
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Publication of EP1399597B1 publication Critical patent/EP1399597B1/de
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    • 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 loading device for a tank. It relates more particularly to the cooling of a device for loading for a shaft furnace, such as a blast furnace, which includes a casing to be mounted on the head of the shaft furnace, a suspended suspension rotor of rotating way in this housing, a loading chute suspended in the suspension rotor and at least one cooling circuit carried by the rotor suspension.
  • a shaft furnace such as a blast furnace
  • a suspended suspension rotor of rotating way in this housing a loading chute suspended in the suspension rotor and at least one cooling circuit carried by the rotor suspension.
  • the rotor of suspension of this device is provided with a lower protective screen which surrounds the feed channel of the chute and protects the drive devices housed in the housing, particularly against heat radiation at inside the shaft oven.
  • the lower screen includes a circuit for coolant which is supplied with coolant through a annular rotary fitting arranged around the feed channel of the chute.
  • This rotary connector includes a rotary ferrule and a fixed ring. The ferrule rotary extends the suspension rotor, of which it forms an integral part, outside the housing.
  • the fixed ring is fixed on the casing and the rotary ferrule is adjusted with play in the fixed ring.
  • Two cylindrical roller bearings are intended to center the rotating ferrule in the fixed ring.
  • two superimposed annular grooves are arranged so as to face the external cylindrical surface of the rotating shell.
  • Connection channels of the cooling system define mouths in the cylindrical surface outer of the rotating shell opposite the two grooves.
  • Toppings sealing which are mounted along the two edges of each groove, rely on the external cylindrical surface of the rotating shell for the purpose sealing between the rotating ferrule and the fixed ring.
  • this type of swivel fitting is hardly suitable for a loading of a shaft furnace. Indeed, in order to avoid leaks of cooling water in the housing, it is necessary to ensure a good seal between the ferrule rotary and fixed ring.
  • a first disadvantage of the cooling device of 1982 is that the pressure available to pass the cooling water through the cooling circuits is essentially determined by the difference of height between the annular tank and the lower collector. It is therefore necessary to equip the rotor for cooling circuits with low pressure drop, which is a considerable disadvantage from the standpoint of space and / or cooling efficiency. There is in particular a risk of local overheating due to the low cooling water circulation speeds in the cooling circuits.
  • Another disadvantage of the cooling device from 1982 is that blast furnace gases come into contact with water from cooling already in the upper annular tank. Like these tall gases furnaces are heavily loaded with dust, large quantities of dust inevitably passes into the cooling water. These dusts form sludge in the upper annular tank, which cross the cooling coils and risk blocking them. Moreover, the blast furnace gases make the cooling water acidic, which promotes corrosion of the cooling circuits.
  • Patent application WO 99/28510 presents a method for cooling a loading device of the kind described above which is equipped with a swivel fitting. Contrary to the teachings of the state of the art, no attempt is made to ensure the perfect tightness of the swivel joint, as recommended for example in US patent 4,273,492, or to avoid leaks in outside the swivel joint by a level control system, such as recommended for example in US patent 4,526,536.
  • a level control system such as recommended for example in US patent 4,526,536.
  • Patent application WO 99/28510 proposes several embodiments for the annular rotary union.
  • the fixed part is a annular block which is adjusted with clearance in an annular channel of the rotor of suspension, so as to be separated from each of the two cylindrical walls of this channel through a radial annular slot.
  • patent application WO 99/28510 suggests either providing at least one lip seal in each annular slot, or to design each annular slot in the form of a labyrinth seal.
  • a disadvantage of this execution is that the annular channel in the rotor of suspension requires very precise machining, therefore very expensive.
  • the adjustment of the annular block in the annular channel of the suspension rotor must be very specific.
  • the fixed part of the fitting rotating comprises a stationary rotating ring which is axially supported, using two tight seals, on a ring housed in an annular channel of the suspension rotor.
  • the fixed rotating ring can be slid vertically, so that it can be pressed against the ring housed in the annular channel of the suspension rotor.
  • a charging device is of the type comprising a casing to be mounted on the head of the shaft furnace, a rotor suspension suspended rotatably in this housing, a loading chute suspended in the suspension rotor and at least one circuit of cooling carried by the suspension rotor.
  • This cooling circuit is supplied with coolant through a fitting annular turn which is of the type comprising: a fixed ring carried by the housing, a rotating ring in rotation with the suspension rotor and rolling means between the fixed ring and the rotating ring.
  • the fixed ring and the rotating ring cooperate so as to define a cylindrical interface in which at least one annular groove provides a transfer of pressurized coolant between the fixed ring and the rotating ring.
  • a device according to the invention stands out in particular for the following characteristics.
  • the fitting annular turn is mounted inside the housing in an annular tank of collection of leaks which is formed by the suspension rotor.
  • the ring of this rotating union is supported exclusively by the fixed ring by means of the rolling means.
  • Mating means then couple this rotating ring, freely supported by the fixed ring, to the suspension rotor so as to selectively transmit a moment of rotation of the suspension rotor to the rotating ring, while preventing transmission of other forces from the suspension rotor to the ring press.
  • connection means finally comprise at least one element deformable tubular, so that the connection means form a non-rigid connection between the rotating ring and the suspension rotor.
  • the rotary connector does not cause neither sealing problems nor excessive friction problems nor seal life issues or problems with differential thermal expansions or seizure problems.
  • the fitting turning is insensitive to severe shocks which are inevitably absorbed by the chute suspension rotor. It is also insensitive to faults centering of the rotor and to flatness of the rotation of the rotor of suspension. Special machining of the rotor suspension rotor is not required. The swivel joint can be easily replaced without removing the suspension rotor.
  • the device according to the invention allows easily to integrate a cooling circuit carried by the suspension rotor in a closed cooling circuit. To this end it is sufficient to provide a first annular groove in the cylindrical interface to ensure transfer coolant from the fixed ring to the rotating ring, and a second annular groove in the cylindrical interface to ensure transfer of coolant from the rotating ring to the fixed ring. Of this way we can get the coolant going back and forth through the annular swivel joint.
  • the cooling circuit (s) may include at least one open discharge line.
  • the housing includes advantageously a fixed annular tank for collecting the coolant, in which the discharge line (s) open out during the rotation of the suspension rotor.
  • Evacuation means are associated with the tank fixed ring to discharge coolant in a controlled manner outside of the housing.
  • Drainage means are advantageously connected to the annular tank of leakage collection to evacuate the leakage rate collected by it from controlled way outside the housing.
  • the fixed ring of the swivel fitting is carried by an annular flange which is fixed on the casing.
  • the annular leakage collecting tank then includes upper edges which cooperate with this annular flange to define labyrinth seals. he As a result, the swivel joint is relatively well insulated from the rest of the housing.
  • connection means advantageously comprise at least one connection flexible and axially compressible coupling, which is advantageously carried by the rotating ring and includes a coupling head.
  • connection flexible and axially compressible coupling which is advantageously carried by the rotating ring and includes a coupling head.
  • this coupling coupling is then associated with a coupling seat, which is arranged in the annular leakage collecting tank, so that the head coupling seat on the coupling seat when the coupling annular turn is mounted in the annular leakage collecting tank.
  • the aforementioned coupling means advantageously comprise a simple radial cross member mounted in the annular collection tank for suspension rotor leaks and a notch in the rotating ring. This notch then engages the radial cross member when the annular rotary coupling is arranged in the annular leakage collecting tank.
  • connection means advantageously open into a collector ring arranged below the annular leakage collecting tank. Many cooling circuits carried by the suspension rotor are then connected to the annular collector.
  • a pair of spaced packings axially is arranged in the cylindrical interface between a groove annular and the rolling means, respectively between two grooves adjacent annulars.
  • a drainage channel drains the interface area cylindrical between the two packings of a pair of packings in the annular leakage collecting tank.
  • FIG 1 shows schematically a loading device with a rotary chute 10 which is intended to equip a shaft furnace, such as for example a blast furnace.
  • This device comprises a casing 12 with an annular flange 14 at its end lower, a support plate 16 at its upper end, and a side casing 18.
  • the annular flange 14 serves to connect the casing 12 of tight to a counter flange (not shown) of a shaft furnace.
  • To the plate support 16 is tightly connected the lower end of a hopper or valve housing (not shown).
  • the lateral envelope 18 connects the flange 14 sealingly to the support plate 16.
  • a sleeve fixed supply 20 is fixed using an annular flange 22 in a central opening of the support plate 16.
  • This fixed supply sleeve 20 enters the casing 12 to define a supply channel 24 for the material to be loaded in the shaft furnace.
  • This supply channel 24 has an axis central 26 which is normally confused with the central axis of the shaft furnace.
  • a suspension rotor 28 for the chute 10 In the casing 12 is mounted a suspension rotor 28 for the chute 10.
  • the upper end of this suspension rotor 28 forms a sleeve suspension 30, which surrounds the fixed supply sleeve 20 and is suspended from using a large diameter bearing ring 32 in the casing 12.
  • the lower end of the suspension rotor 28 forms a screen box 34 in the central opening of the lower flange 14 of the casing 12. It supports in in addition to the bearings of the suspensions 36 for the chute 10.
  • a ring gear 38 of the suspension sleeve 34 cooperates with a motor (not shown) to drive the suspension rotor 28, and therefore the chute 10 suspended therein, rotating about the axis 26.
  • the chute 10 is further equipped with a pivoting device (not shown), which allows you to vary its angle of inclination by rotating it in its suspension bearings 36 around an axis 40 which is perpendicular to the axis of rotation 26 (in FIG. 1, the axis 40 is perpendicular to the plane of the leaf).
  • the screen casing 34 is provided with cooling circuits 42 1 , 42 2 , 42 3 , 42 4 in which a coolant, for example water, is circulated.
  • These cooling circuits 42 1 , 42 2 , 42 3 , 42 4 advantageously contain baffles or tubes (not shown) circulating the cooling water along a predetermined path along the walls of the screen box 34. They are connected to a coolant distribution circuit using an annular rotary connection, which is generally identified by the reference numeral 44. The latter is mounted inside the casing 12 in an annular leakage collecting tank 46, which is formed by the upper end of the suspension sleeve 30 of the suspension rotor 28.
  • annular leakage collecting tank 46 cooperates with the annular flange 22 to define labyrinth seals 52, 54.
  • a sort of chamber is thus defined inside the casing 12 separate 56, in which for the annular rotary connection 44 is well protected from the fumes which penetrate into the casing 12. To further reinforce this protection, it is possible to inject a clean gas into this separate chamber 56, so as to maintain the latter in overpressure by compared to the oven.
  • the fitting annular turn 44 includes a ring fixed 60, which is screwed onto the lower surface of the flange 22, as well as a rotary ring 62, which is mounted with radial clearance in the fixed ring 60. It It is important to note that the rotating ring 62 is supported exclusively by the fixed ring 60 by means of a bearing 64. Indeed, there is no rigid connection between the rotating ring 62 and the suspension rotor 28, however selective coupling means couple the rotating ring 62 to the suspension rotor 28 so as to selectively transmit a moment of rotation of the suspension rotor 28 to the rotating ring 62, while preventing transmission of other forces from the suspension rotor 28 to the rotating ring 62.
  • FIG. 4 and 5 A particularly simple execution of these coupling means is illustrated using FIG. 4 and 5. It is a radial cross member 65 which is fixed in the annular leakage collecting tank 46 and which engages a notch 66 in the rotary ring 62 when the annular rotary connector 44 is fixed in the annular leakage collecting tank 46. It will be appreciated that the radial cross member 65 and the notch 66 cooperate so as to transmit a moment of rotation of the suspension rotor 28 to the rotating ring 62, while nevertheless allowing relative vertical and radial displacements of the two elements. This makes the annular rotary union 44 almost insensitive to thermal expansion, shocks, vibrations and layout faults experienced by the suspension rotor 28. Remain to note that the reference 68 globally marks a lubrication circuit under bearing pressure 64. The excess grease is discharged below of the bearing 64 through a drainage channel 69 in the loading channel 24.
  • Reference 70 identifies a fitting for a pipe supply of pressurized coolant.
  • An internal channel 72 of the fixed ring 60 connects this fitting 70 to an annular groove 74 which is arranged in a concave cylindrical surface 76 of the fixed ring 60.
  • a internal channel 78 of the rotating ring 62 is connected to a mouth 80, which is arranged in a convex cylindrical surface 82 of the rotating ring 62 opposite the annular groove 74.
  • This internal channel 78 opens into the lower front surface of the rotating ring 62 in a fitting coupling 84.
  • the pressurized coolant supplied to the fitting 70 passes through the fixed ring 60 through the internal channel 72 in the annular groove 74, to be transferred through a cylindrical interface, formed by the two cylindrical surfaces 76, 82, and the first mouth 80 in the rotating ring 62. In this, the coolant flows to through the internal channel 78 in the coupling fitting 84.
  • the fitting coupling 84 is axially projecting from the front surface bottom of the rotating ring 62. It comprises a flexible tubular element 100 laterally and axially compressible, which is embedded with one end in the lower front surface of the rotating ring 62. The other end carries a coupling head 102.
  • the tubular element 100 comprises a bellows compensator 104 surrounded by a helical compression spring 106.
  • the coupling head 102 is associated with a coupling seat 108, which is arranged on the bottom of the annular leakage collecting tank 46 so as to what the coupling head 102 sits on the coupling seat when the annular rotary union 44 is mounted in the annular collection tank for leaks 46.
  • the compression spring 106 then provides sufficient contact pressure between coupling head 102 and seat coupling 108, so that a seal 110, which is carried either by a spherical convex crown 111 of the coupling head 102 either by a conical concave crown 112 of the coupling seat 108 can seal between the two coupling elements.
  • the coupling seat 108 could also be carried by the rotating ring 62.
  • the coupling fitting 84 would be axially projecting by relative to the bottom of the annular leakage collecting tank 46.
  • the head coupling 102 could be fitted with a conical concave crown and the coupling seat of a spherical convex crown, which cooperate with or without a gasket to ensure watertightness during their coupling.
  • the pressurized coolant enters through the coupling seat 108 into an annular supply manifold 114.
  • the latter is arranged immediately below the annular tank 46.
  • supply manifold 114 of the suspension rotor 28 are connected supply tubes of the cooling circuits 42 1 , 42 2 , 42 3 , 42 4 carried by the suspension rotor 28.
  • FIG. 1 there is shown by way of example the supply tube 116 which supplies the cooling circuit 42 1 .
  • FIG. 1 it can be seen that the coolant leaves the cooling circuit 42 1 through a return tube 118 which opens into a second annular manifold 120.
  • the latter is arranged just below the first annular manifold 114.
  • the second annular collector 120 serves as a collector for all the returns from the cooling circuits 42 1 , 42 2 , 42 3 , 42 4 . It is connected through a coupling fitting 84 '/ coupling seat 108' assembly, which is of the same type as the assembly 84/108 described above, to an internal channel 78 'of the rotating ring 62. From this channel 78 ′ the coolant passes, in the opposite direction to that described above, through a mouth 80 ′ and the cylindrical interface 76, 82 in a second annular groove 74 ′ arranged in the concave cylindrical surface 76 of the fixed ring 60. In this fixed ring 60 the coolant is led through an internal channel 72 'in the fixed connector 70' for a return line of the coolant under pressure.
  • Interface area 128 cylindrical 76, 82 located between the two seals 126 ', 126 "east drained by a drainage channel 130 in the annular collection tank for leaks 46. Since the pressure in zone 128 of the cylindrical interface 76, 82 is lower than the pressures in the second groove 74 ′, it is guaranteed that the coolant cannot be short-circuited through the interface cylindrical 76, 82 of the first groove 74, where the pressure prevails supply, in the second groove 74 ′, where the return pressure prevails which is significantly lower than the supply pressure.
  • a last seal 132 is arranged in the cylindrical interface 76, 82 in below the second groove 74 '.
  • the leakage rate flowing through this seal 132 is drained through the cylindrical interface 76, 82 in the annular leakage collecting tank 46.
  • the linings sealing 121 ', 121 ", 126', 126" and 132 are not intended to completely cancel leakage rates but to limit them to reasonable values and to channel them in a controlled manner into the annular leakage collecting tank 46. It it follows that the seals 121 ', 121 ", 126', 126" and 132 are always well cooled and lubricated, which significantly increases their life of life and avoids seizures. In addition, the power required to make turning the rotary ring 62 in the fixed ring 60 is thus considerably scaled down.
  • Reference 134 locates a drainage pipe which allows the evacuation of leakage rates collected in the annular leakage collecting tank 46.
  • this drainage pipe 134 opens into an annular tank fixed 136, which is arranged in the lower end of the casing 12.
  • the free end of the drainage pipe 134 moves in the fixed annular tank 136.
  • means evacuation are associated with the fixed annular tank 136 to evacuate the liquid of controlled cooling outside the housing 12.
  • these evacuation means are represented schematically by pipes 138.
  • FIG. 6 shows a simplified embodiment of the device of FIG. 1.
  • the return of the coolant from the cooling circuits 42 1 , 42 2 , 42 3 , 42 4 does not pass through the annular rotary union 44 ′, but is evacuated through open discharge pipes in the fixed annular tank 136 which is arranged in the lower end of the casing 12.
  • the discharge line 140 of the cooling circuit 42 1 has been shown .
  • the annular rotary connector 44 must only have an annular groove and internal channels to ensure the transfer of the coolant under pressure between the fixed ring and the rotary ring.
  • the disadvantage of this system is that in the fixed annular tank 136, the coolant is exposed to the atmosphere prevailing in the casing 12. This requires a more expensive treatment of the cooling water before its recirculation in the cooling system .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Joints Allowing Movement (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Heat Treatment Of Articles (AREA)
  • Mechanical Sealing (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Replacement Of Web Rolls (AREA)
  • Crushing And Grinding (AREA)
  • Unwinding Webs (AREA)

Claims (9)

  1. Vorrichtung zum Beschicken eines Schachtofens, mit:
    einem auf den Schachtofenkopf zu montierenden Gehäuse (12);
    einem rotierend im Gehäuse (12) hängenden Tragrotor (28);
    einer im Tragrotor (28) hängenden Beschickungsrinne (10);
    mindestens einem vom Tragrotor (28) getragenen Kühlkreis (42);
    einem ringförmigen Drehstutzen (44) zur Versorgung des Kühlkreises (42) mit einer Kühlflüssigkeit, wobei der ringförmige Drehstutzen (44) einen vom Gehäuse (12) getragenen, festen Ring (60), einen mit dem Tragrotor (28) rotierenden Rotationsring (62) und Laufmittel (32) zwischen dem festen Ring (60) und dem Rotationsring (62) aufweist, wobei der feste Ring (60) und der Rotationsring (62) so zusammenwirken, dass eine zylindrische Grenzfläche definiert wird, in der mindestens eine Ringnut (74, 74') einen unter Druck erfolgenden Transfer einer Kühlflüssigkeit zwischen festem Ring (60) und Rotationsring (62) gewährleistet; und
    Verbindungsmitteln (84, 108, 84', 108') verbunden zwischen dem Rotationsring (62) und dem Tragrotor (28), um den Transfer der Kühlflüssigkeit vom Rotationsring (62) zum Tragrotor (28) zu gewährleisten;
    dadurch gekennzeichnet, dass
    der ringförmige Drehstutzen (44) innerhalb des Gehäuses (12) in einer ringförmigen Leckauffangwanne (46) montiert ist, die vom Tragrotor (28) gebildet wird;
    der Rotationsring (62) über die Laufmittel (64) ausschließlich vom festen Ring (60) getragen wird;
    selektive Kupplungsmittel (65, 66) den Rotationsring (62) an den Tragrotor (28) kuppeln, so dass ein Drehmoment selektiv vom Tragrotor (28) auf den Rotationsring (62) übertragen und dabei eine Übertragung weiterer Kräfte vom Tragrotor (28) auf den Rotationsring (62) verhindert wird; und
    die Verbindungsmittel (84, 108, 84', 108') mindestens ein deformierbares, rohrförmiges Element aufweisen, so dass diese Verbindungsmittel (84, 108, 84', 108') eine unstarre Verbindung zwischen dem Rotationsring (62) und dem Tragrotor (28) bilden.
  2. Vorrichtung nach Anspruch 1, gekennzeichnet durch:
    eine in der zylindrischen Grenzfläche angeordnete, erste Ringnut (74), um den Transfer der Kühlflüssigkeit vom festen Ring (60) zum Rotationsring (62) zu gewährleisten; und
    eine in der zylindrischen Grenzfläche angeordnete, zweite Ringnut (74'), um den Transfer der Kühlflüssigkeit vom Rotationsring (62) zum festen Ring (60) zu gewährleisten.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass
    der mindestens eine Kühlkreis (42) mindestens eine Ablassleitung aufweist;
    das Gehäuse (12) eine ortsfeste, ringförmige Wanne (136) zum Auffangen der Kühlflüssigkeit aufweist;
    die Ablassleitung (140) bei der Rotation des Tragrotors (28) in die ortsfeste, ringförmige Wanne (136) einmündet; und
    Ableitungsmittel mit der ortsfesten, ringförmigen Wanne assoziiert sind, um die Kühlflüssigkeit aus dem Gehäuse (12) abzuleiten.
  4. Vorrichtung nach irgendeinem der Ansprüche 1 bis 3, gekennzeichnet durch Dränmittel (134, 136, 138), die an die ringförmige Leckauffangwanne (46) angeschlossen sind, um die davon aufgefangene Leckmenge kontrolliert aus dem Gehäuse (12) abzuleiten.
  5. Vorrichtung nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass
    der feste Ring (60) von einem am Gehäuse (12) befestigten Ringflansch (22) getragen wird; und
    die ringförmige Leckauffangwanne (46) obere Kanten (48, 50) aufweist, die mit dem Ringflansch (22) zusammenwirken, um Labyrinthdichtungen (52, 54) zu bilden.
  6. Vorrichtung nach irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Verbindungsmittel (84, 108, 84', 108') umfassen:
    mindestens einen flexiblen, axial komprimierbaren Kupplungsstutzen (84, 84'), der vom Rotationsring (62) getragen wird und einen Kupplungskopf (102) aufweist; und
    einen Kupplungssitz (108, 108'), der in der ringförmigen Leckauffangwanne (46) so angeordnet ist, dass der Kupplungskopf auf dem Kupplungssitz (102) aufsitzt, wenn der ringförmige Drehstutzen (44) in der ringförmigen Leckauffangwanne (46) montiert ist.
  7. Vorrichtung nach irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Kupplungsmittel (65, 66) umfassen:
    einen in der ringförmigen Leckauffangwanne (46) des Tragrotors (28) montierten, radialen Querträger (65); und
    eine im Rotationsring (62) ausgebildete Einkerbung (66), die den radialen Querträger (65) aufnimmt, wenn der ringförmige Drehstutzen (44) in der ringförmigen Leckauffangwanne (46) angeordnet ist.
  8. Vorrichtung nach irgendeinem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass
    die Verbindungsmittel (84, 108, 84', 108') in eine unterhalb der ringförmigen Leckauffangwanne (46) angeordnete, ringförmige Sammelleitung (114, 120) einmünden; und
    mehrere, vom Tragrotor (28) getragene Kühlkreise (42) an die ringförmige Sammelleitung angeschlossen sind.
  9. Vorrichtung nach irgendeinem der Ansprüche 1 bis 8, gekennzeichnet durch
    ein Paar axial beabstandeter Dichtungen (121', 121") (126', 126"), wobei das Dichtungspaar in der zylindrischen Grenzfläche zwischen einer Ringnut (74) und den Laufmitteln (64) oder zwischen zwei aneinandergrenzenden Ringnuten (74, 74') angeordnet ist; und
    einen Dränkanal (124, 130) zur Dränung des zylindrischen Grenzflächenbereichs (122, 128) zwischen den beiden Dichtungen eines Dichtungspaars in der ringförmigen Leckauffangwanne (46).
EP02753069A 2001-06-26 2002-06-18 Vorrichtung zum beschicken eines schachtofens Expired - Lifetime EP1399597B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU90794 2001-06-26
LU90794A LU90794B1 (fr) 2001-06-26 2001-06-26 Dispositif de chargement d'un four à cuve
PCT/EP2002/006682 WO2003002770A1 (fr) 2001-06-26 2002-06-18 Dispositif de chargement d'un four a cuve

Publications (2)

Publication Number Publication Date
EP1399597A1 EP1399597A1 (de) 2004-03-24
EP1399597B1 true EP1399597B1 (de) 2004-11-24

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EP02753069A Expired - Lifetime EP1399597B1 (de) 2001-06-26 2002-06-18 Vorrichtung zum beschicken eines schachtofens

Country Status (11)

Country Link
US (1) US6857872B2 (de)
EP (1) EP1399597B1 (de)
CN (1) CN1234877C (de)
AT (1) ATE283376T1 (de)
CZ (1) CZ298797B6 (de)
DE (1) DE60202068T2 (de)
LU (1) LU90794B1 (de)
RU (1) RU2258878C1 (de)
TW (1) TW536556B (de)
UA (1) UA73875C2 (de)
WO (1) WO2003002770A1 (de)

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EP1935993A1 (de) * 2006-12-18 2008-06-25 Paul Wurth S.A. Ein Drehbeschickungsgerät für einen Schachtofen
LU91601B1 (en) * 2009-08-26 2012-09-13 Wurth Paul Sa Shaft furnace charging device equipped with a cooling system and annular swivel joint therefore
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LU91845B1 (en) * 2011-07-22 2013-01-23 Wurth Paul Sa Rotary charging device for shaft furnace
LU91885B1 (en) * 2011-10-11 2013-04-12 Wurth Paul Sa Blast furnace installation
KR102384150B1 (ko) * 2015-11-04 2022-04-08 삼성전자주식회사 조인트 어셈블리 및 이를 포함하는 운동 보조 장치
CN108443617B (zh) * 2018-05-22 2024-01-19 广州船舶及海洋工程设计研究院（中国船舶工业集团公司第六0五研究院） 用于液体输送的旋转接头设备
JP7288834B2 (ja) * 2019-10-07 2023-06-08 キヤノントッキ株式会社 成膜装置、成膜方法および電子デバイスの製造方法
CN114990266B (zh) * 2022-05-26 2024-01-16 武汉钢铁有限公司 一种可阻断损坏部位的高炉用冷却器

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LU80112A1 (de) * 1978-08-16 1979-01-19
LU84521A1 (fr) * 1982-12-10 1984-10-22 Wurth Paul Sa Dispositif de refroidissement d'une installation de chargement d'un four a cuve
LU86818A1 (fr) * 1987-03-24 1988-11-17 Wurth Paul Sa Procede et dispositif de refroidissement d'une installation de chargement d'un four a cuve
LU87948A1 (fr) * 1991-06-12 1993-01-15 Wurth Paul Sa Dispositif de refroidissement d'une goulotte de distribution d'une installation de chargement d'un four a cuve
LU88456A1 (fr) * 1994-02-01 1995-09-01 Wurth Paul Sa Dispositif de répartition de matières en vrac
LU90179B1 (fr) * 1997-11-26 1999-05-27 Wurth Paul Sa Procede pour refroidir un dispositif de chargement d'un four a cuve

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CZ2004111A3 (cs) 2004-09-15
US6857872B2 (en) 2005-02-22
DE60202068D1 (de) 2004-12-30
UA73875C2 (en) 2005-09-15
TW536556B (en) 2003-06-11
US20040224275A1 (en) 2004-11-11
CZ298797B6 (cs) 2008-01-30
RU2004100829A (ru) 2005-08-10
LU90794B1 (fr) 2002-12-27
RU2258878C1 (ru) 2005-08-20
EP1399597A1 (de) 2004-03-24
WO2003002770A1 (fr) 2003-01-09
CN1234877C (zh) 2006-01-04
CN1516742A (zh) 2004-07-28
ATE283376T1 (de) 2004-12-15
DE60202068T2 (de) 2005-12-01

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