EP0065084B1 - Dispositif de commande du mouvement d'une goulotte oscillante et installation de chargement d'un four à cuve équipé d'un tel dispositif - Google Patents

Dispositif de commande du mouvement d'une goulotte oscillante et installation de chargement d'un four à cuve équipé d'un tel dispositif Download PDF

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Publication number
EP0065084B1
EP0065084B1 EP82101942A EP82101942A EP0065084B1 EP 0065084 B1 EP0065084 B1 EP 0065084B1 EP 82101942 A EP82101942 A EP 82101942A EP 82101942 A EP82101942 A EP 82101942A EP 0065084 B1 EP0065084 B1 EP 0065084B1
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EP
European Patent Office
Prior art keywords
spout
axis
control device
pivoting
movement
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
EP82101942A
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German (de)
English (en)
French (fr)
Other versions
EP0065084A1 (fr
Inventor
Edouard Legille
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
Application filed by Paul Wurth SA filed Critical Paul Wurth SA
Priority to AT82101942T priority Critical patent/ATE10949T1/de
Publication of EP0065084A1 publication Critical patent/EP0065084A1/fr
Application granted granted Critical
Publication of EP0065084B1 publication Critical patent/EP0065084B1/fr
Expired legal-status Critical Current

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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 device for controlling the movement of an oscillating chute which can pivot around two orthogonal axes, the first axis being the axis of suspension of the chute between two branches of a fork, the second axis being the axis longitudinal of the fork around which the latter can pivot in block with the chute, the device comprising an oscillating control member having the same degrees of freedom as the chute, a drive mechanism for imparting movement to the control member that the chute and a transmission device must perform to reproduce the movement of the control member on the chute and vice versa.
  • the invention also relates to a loading installation of a tank furnace equipped with such a device.
  • the object of the present invention is to provide a new control device of the aforementioned type in which the control member and its drive mechanism are no longer subjected to the stresses and stresses resulting from their action on the chute and its suspension fork.
  • the device proposed by the invention is essentially characterized by a first means for pivoting the chute around the first axis, a second means for pivoting the fork and the chute around the second axis and a servo drive controlled by the movement of the control member and by the movement of the chute, in order to coordinate the actions of said first and second means and to control these according to relative changes in position and orientation between the control member and the chute.
  • Said first and second means for pivoting the chute around the first and second axis are respectively a first and a second hydraulic cylinder.
  • control member is an arm mounted by one of its ends on a rotary shaft mounted, in turn, on the suspension fork of the chute, parallel to the first pivot axis and connected to the latter by the transmission device so as to pivot in synchronism with the pivoting of the chute around the first axis and with the movement of the first jack, the second end of the arm undergoing the action of the drive mechanism designed to print to the control member a conical movement of circular precession with variable angle of inclination.
  • the control member is mounted on the rotary shaft by means of a universal joint.
  • This control member cooperates with two feelers integral with the rotary shaft and designed to detect any pivoting authorized by said articulation and occurring, around two axes respectively parallel to the first and second pivot axis, between the arm and its rotary shaft , with a view to generating, independently of one another, correction signals intended to compensate for the pivotings thus detected by a corresponding action on the first and second actuator.
  • the assembly is such that the control member occupies a neutral orientation, parallel to the axis of the chute and that any deviation from this parallelism, permitted by said articulation and occasioned by the chute or the drive mechanism, is immediately detected by the probes and compensated by a pivoting of the chute under the action of one or the other, or of the two jacks at the same time.
  • the chute therefore always remains parallel to the control shaft and follows the movement imparted to it by its drive mechanism, in particular a conical precession movement around a vertical axis.
  • the drive mechanism of the control member can be a "miniaturized" mechanism, since the only force which it must develop is the very low force necessary for pivoting of the control member in its universal articulation with its rotary shaft, while the forces necessary for the pivoting of the chute and of its suspension fork are generated by the two hydraulic cylinders.
  • the first cylinder is mounted by pins on the suspension fork of the chute, while the second cylinder is mounted by pins on a fixed frame supporting the fork.
  • a safety device with elastic interlocking is provided, in a preferred embodiment, between the control member and the transmission device and intended to come into action to prevent deterioration in the event of failure of the drive mechanism or of the system. hydraulic cylinders.
  • This device is preferably associated with one or more limit switches intended to detect deviations in the universal joint greater than those permitted by the probes.
  • the control member is completely independent of the device, while remaining mounted so as to be able to perform the same movements as the chute.
  • the servo control is essentially constituted by first electronic means associated with the control member and designed to measure the pivotings of the control member around two perpendicular axes and generate two sets of reference signals respectively representative of the amplitude of these pivotings, second electronic means for measuring the pivotings of the chute around the first and second axes and generating two series of effective signals respectively representative of the amplitude of the effective pivoting of the chute around its axes, comparators for comparing the series setpoint signals to the series of effective signals and generate correction signals representative of the difference between the setpoint signals and the actual signals and used to actuate the first and second cylinders so as to vary the effective signals by the movement of the chute so that the correction signals are maintained us equal to zero or they become equal to zero.
  • the invention also relates to a loading installation of a shaft furnace comprising a vertical supply channel mounted in the head of the furnace and connecting one or more external loading locks inside the furnace, an oscillating chute for distributing the loading material mounted immediately downstream of the channel and a suspension and control device for the oscillating chute with a control device of the kind described above.
  • FIG. 1 schematically shows the device for suspending and driving the chute corresponding to FIG. 1 of the aforementioned European patent application EP-A-0062769.
  • EP-A-0062769 European patent application
  • the rules set out in this patent application are also valid for the present application, that is to say that, although the various embodiments are described with reference to their application to a blast furnace, the invention is just as well applicable to other loading systems and other types of enclosure ovens and more particularly enclosures where conditions similar to those existing in a blast furnace prevail.
  • the reference 20 designates the head of a blast furnace under pressure, in which the loading material must be charged from an upper airlock, not shown, through a vertical supply channel 22 arranged along the axis vertical 0 or top of the blast furnace.
  • the distribution of the loading material introduced through the channel 22 is carried out using an oscillating chute 24 whose shape is preferably frustoconical, as shown in the figure.
  • This oscillating chute 24 is suspended between two branches (of which only the branch 28 is visible) of a fork 26 which is mounted in the side wall of a carcass 34 of the head 20 of the oven so as to be able to pivot around its axis longitudinal Y. Independently of this possibility of pivoting of the fork 26 around the axis Y, the oscillating chute 24 can pivot around its suspension axis X between the two branches of the fork 26.
  • the fork 26 is mounted in a sealed manner in a wall 36 separating a casing 32 for controlling and driving the interior of the head 20 of the furnace, casing 32 being mounted, in a removable manner, on a flange 38 of the carcass 34.
  • the fork 26 is housed in a bearing 40 provided in the partition wall 36.
  • This bearing can be associated with a sealing device 42 to prevent pressure leaks towards the casing 32.
  • This sealing device 42 can however be relieved by providing in the casing 32 a pressure approximately equal to that prevailing inside the head 20 of the furnace.
  • a control member 46 mounted on a rotary shaft 48 passing through the fork 26 and able to rotate about its axis X '.
  • This shaft 48 is mounted so that its axis X 'is strictly parallel to the axis of pivoting of the chute 24.
  • This control member 46 can pivot with the shaft 48 around the axis X' as well as around of the Y axis, together with the fork 26, therefore has the same degrees of freedom as the chute 24 and vice versa.
  • the basic idea of the aforementioned patent application is to animate this control member 46 with the movement that is desired that the chute 24 performs.
  • a movement transmission device 50 connected, on the one hand, directly or indirectly to the axis X of pivoting of the chute 24 and, on the other hand, by means of a lever to the control member 46 so as to constitute a system in the form of a parallelogram which transforms the pivotings of the control member 46 around the axis X 'into pivoting of the chute 24 around the axis X .
  • the aforementioned patent application proposes several embodiments for animating the control member 46 with the desired movement.
  • This mechanism comprises, in this case, a drive unit 60 mounted outside, preferably in a removable manner, on the casing 32.
  • Two coaxial control shafts 62, 64 penetrate from the drive unit 60 through bearings and possibly seals inside the casing 32.
  • One of these control shafts, in this case the external control shaft 62 carries inside the casing 32 a curved slide 66, in an arc of a circle, the angle of which corresponds substantially to twice the maximum angle of inclination of the chute with respect to the axis O.
  • a toothed sector 72 forming a rack with a pinion 70 integral with the internal control shaft 64 is maintained so sliding on the concave side of this slide 66.
  • a rotary connection 68 is provided between the end of the control member 46 and one of the two ends of this toothed sector 72.
  • the rotation of the external control shaft 62 consequently rotates the slide 66 and the toothed sector 72 around the axis 0 'parallel to the axis 0 of the furnace and generates a conical precession movement of the control member 46 around this same axis O '.
  • This movement of the control member 46 is possible thanks to coordinated pivoting of the fork 26 around the axis Y and of the member 46 around the axis X ', pivoting reproducing the conical precession movement of the member 46 exactly on the chute 24.
  • the rotation of the internal control shaft 64 is used to move the toothed sector 72 and to modify the angle of inclination of the control member 46 relative to the axis O '.
  • control member 46 therefore exerts a control function and a motor function insofar as this control member 46 actuates the chute 24 directly by a set of levers.
  • this control member 46 and its connection with its drive mechanism can expose this member to high mechanical stresses.
  • the present invention proposes to withdraw the driving functions from the control member 46 so that it exerts exclusively a control function.
  • an assisted control is proposed in which the power necessary for the pivoting of the fork 26 and of the chute 24 is obtained by means of hydraulic cylinders instead of deriving this power from the drive mechanisms of the control member. 46.
  • a first hydraulic cylinder 74 can be seen, the piston rod 76 of which acts on a lever 58 secured to the rotary shaft 48 to which the control member 46 is connected.
  • On this lever 58 is also articulated the transmission device 50 so that the action of the jack 74 causes the control member 46 to pivot about the axis X 'and the simultaneous pivoting of the chute 24 around its suspension axis X.
  • the cylinder 74 Since the 'end of the piston rod 76 which is articulated on the lever 58 must perform a pendulum movement around the axis X' the cylinder 74 must be able to pivot about an axis parallel to the axis X '. To this end, the jack 74 is mounted by means of pins 78 on the rear end of the fork 26.
  • a second hydraulic cylinder 80 acts perpendicular to the first cylinder 74.
  • This cylinder 80 is mounted by pins, not visible, on the wall of the casing 32 and its rod 82 is directly articulated on the fork 26 in order to pivot the latter, by means of the bearing 40, about the Y axis.
  • the fork 26 is in fact a double fork comprising, in addition to the two branches between which the chute 24 is suspended, two branches at the opposite end for mounting the rotary shaft 48.
  • This fork 26 is therefore similar. to that provided in the embodiment of Figure 25 of European patent application 0062769.
  • Figure 3 we see the mounting of the rotary shaft 48 between the two branches 84 and 86 of the fork. The mounting details have only been shown for the branch 86.
  • Bearings 88 allow the rotation of the shaft 48 around the axis X ', while sealing means, not shown, allow the circulation of a coolant inside the entire fork 26.
  • the pivoting movement of this shaft 48 around the axis X ' is transformed by means of levers 90 into a translational movement of the transmission mechanism 50 in the form double fork moving inside the fork 26.
  • the shaft 48 in several pieces, which, in FIG. 3, is materialized by a screw 92 passing axially through one end of the shaft and ensuring its rigidity.
  • the two parts held together at 94 by the screw 92 are preferably provided with flanges each comprising a crown of radial grooves.
  • the mounting of the shaft 48 in the branch 84 is analogous to what has been described above with reference to the branch 86.
  • the connection between the control member 46 and the shaft 48 is ensured by a universal articulation 100 allowing a certain freedom of movement of the member 46 relative to the shaft 48 and vice versa.
  • This universal joint 100 can have various shapes, in particular that of a ball joint. In the figures we have shown, by way of example, a cardan joint 100.
  • the member 46 is mounted on a shaft 102 housed in a frame 104 and allowing the pivoting of the member 46 about the axis X ' .
  • This frame 104 is carried by pivots 106 allowing it to rotate around a second axis perpendicular to the axis X '.
  • the pivoting occurring at the level of the universal joint 100 are detected by a pair of feelers 108 and 110 associated with the control member 46 and integral with the shaft 48.
  • These feelers are in fact the sensitive members of two position sensors 112, 114, signaling any deviation from a neutral position, deviation to be compensated by a coordinated action on the jacks 74 and 80.
  • the probe 108 detects the deviations by pivoting occurring at the level of the pivots 106 and controls the compensation for this pivoting, as described below, by acting on the jack 80.
  • the probe 110 which is offset by 90 ° relative to the probe 108, detects, in a similar manner, pivotings occurring around the axis X ′ and controls the compensation of these pivotings by an action on the jack 74.
  • This regulator 116 actuates a servohydraulic unit 118 comprising a slide valve, also known per se, incorporated in the hydraulic circuit of the jack 78.
  • This servohydraulic unit 118 establishes the circulation of the hydraulic fluid either in one direction or in the other, according to whether signal I is positive or negative.
  • the sign of the signal 1 determines the direction of movement of the piston rod 76 of the jack 78 and the direction of the pivoting of the chute around the axis X.
  • This action on the jack 78 is in the opposite direction of the action which caused the displacement Ax on the probe and continues until the probe occupies again its neutral position, that is to say, that the signal 1 becomes equal to zero.
  • the servohydraulic unit 118 is, moreover, designed so as to vary the flow rate of the hydraulic fluid in the circuit of the actuator 78 as a function of the amplitude of the signal I.
  • the pivoting speed around the axis X of the chute, generated by the piston 78 is a function of the magnitude of ⁇ x.
  • a control circuit similar to that of FIG. 6 is associated with the probe 108 in order to control the jack 80 and the pivoting of the chute 24 around the axis Y.
  • the probes 108 and 110 consequently undergo the double action of the control member 46 and of the chute 24 by means of the fork 26 and the shaft 48. From the control member 46, the probes 108 and 110 receive the setpoint information by the action of the drive unit 60. From the chute 24, the probes 108, 110 permanently receive the information concerning the actual position of this chute. As long as the information concerning the actual position does not correspond to the setpoint information, the sensors 112 and 114 maintain the signals for actuating the corresponding jacks and aiming at the reduction of these signals I. There is consequently a self-regulation of the position or orientation of the chute 24 around the position controlled by the drive unit 60.
  • a failure occurs upstream or downstream of the control member, that is to say, for example an electrical failure of the power unit 60, or a failure of the hydraulic circuits of the cylinders 78 or 80 , the servo control system is no longer able to cancel, by compensation, the signal I, so that ⁇ x tends to increase in an uncontrolled manner.
  • safety sensors 115, 117 have been placed alongside sensors 112 and 114 which are also position sensors similar to sensors 112 and 114. These sensors 115 and 117 trigger a signal when Ax exceeds, in obsolete value, a predetermined threshold which immediately blocks both the hydraulic circuit and the power unit.
  • the articulation 100 is provided inside a frame 120 located inside a corresponding frame 122 fixed on the rotary shaft 48.
  • These two frames 120 and 122 are held together only by four pairs of elastic fixings (124) provided at the four corners of the two frames 120 and 122.
  • Each of these fixings comprises, for example, a pair of plates 126 and 128 applied on both sides. 'other of the frames 120 and 122 so as to cover their separation.
  • These plates 126 and 128 are maintained in this arrangement according to FIG. 3 under the action of two springs 130 and 132.
  • These springs 130 and 132 are powerful enough to maintain the configuration illustrated in FIGS. 3 and 4.
  • FIG. 5 shows a second embodiment of a safety device fulfilling the functions of that of FIG. 4.
  • a frame 140 carrying the universal articulation 100 with the control member 46 is maintained in an outer frame 144 secured to the rotary shaft 48 by means of an elastic universal joint fixing.
  • an intermediate frame 142 disposed between the frames 140 and 144.
  • the inner frame 140 can pivot around an axis 146, corresponding to the axis X ', inside the intermediate frame 142 while the latter pivots inside the outer frame 144 around an axis 148 perpendicular to the axis 146.
  • This structure is held together by means of a series of elastic fasteners, similar to the fasteners 124 with plates and springs of FIGS. 3 and 4.
  • Two fasteners 150 and 152 hold the inner frame 140 relative to the intermediate frame 144 and prevent rotation about the axis 146.
  • Two other elastic fasteners 154 and 156 prevent the rotation of the intermediate frame 142 around the axis 148 to inside the outer frame 144.
  • the fasteners give way under the effect of an abnormal force and allow a dislocation of the different frames around the axes 146 and / or 148. While in the embodiment of Figures 3 and 4, a dislocation causes total release of the inner frame 120 relative to the outer frame 122, in the embodiment of Figure 5 the structure remains held together thanks to the presence of the pivot axes 146 and 148. Indeed, even in case of dislocation total, that is to say a dislocation of the inner frame 140 relative to the intermediate frame 142 and a dislocation of the latter relative to the outer frame 144, a rapid repositioning of the structure by an appropriate manual pivoting in different frames until they are held by their elastic fixings is still possible.
  • FIGS. 7 to 10 illustrate a second embodiment, the peculiarity of which is that the control member and its drive mechanism are made completely independent of the device for suspending the chute 24. Elements corresponding to those of the previous embodiment are provided with the same reference numbers and will not be described in further detail.
  • the jack which generates the rotation of the fork 26 around the axis Y has also been represented by the reference 80 although in FIG. 8 it occupies a position different from that of the jack 80 in FIG. 2. Its function nevertheless remains exactly the even.
  • the angular position of the chute 24 is continuously monitored by means of two sensors 160 and 162.
  • the sensor 160 determines the effective angular position of the chute with respect to the axis 0 and transmits signals proportional to the amplitude of pivoting of the lever 58 around the axis X ', that is to say the pivotings of the chute 24 around the axis X.
  • the sensor 162 determines the movements around the Y axis and generates and transmits signals proportional to the amplitude of rotation of the fork 26 and of the chute 24 around the Y axis.
  • FIGS. 9 and 10 show the control member 166 which can be mounted at a suitable location, for example, in an engine room, and be actuated by a suitable drive mechanism 168 which can be analogous to the mechanism used in the mode of embodiment of FIG. 1 or one of the different embodiments described in support of the European patent application EP-A-0062769.
  • control member 166 is mounted on a suitable frame 172 by means of a universal joint, in this case, a universal joint 170.
  • This joint 170 allows the control member 166 to pivot around two axes X 1 , Y 1 perpendicular to one another and corresponding respectively to the axes X and Y of pivoting of the chute 24 in the head of the furnace 20.
  • the movement of the control member 166 provides instructions for the movement of the chute in the form of set signals respectively representing the angular movements of the control member 166 around the X axis 1 and around the Y axis 1 in the universal joint 170.
  • These angular movements of the member 166 are detected by two sensors 180, 182, which correspond respectively to the sensors 160 and 162, and respectively control the pivotings around the axes X 1 and Y 1 .
  • FIG. 11 shows a block diagram illustrating the relationship between the device of Figure 9, which provides the instructions, and the device of Figure 7 which must execute them.
  • the control circuit of FIG. 11 is that associated with the jack 74 for pivoting around the X axis.
  • a similar circuit is provided for actuating the jack 80 to generate the pivoting around the Y axis.
  • control member 166 is rotated about its pivot axis X 1 by an angle equal to ⁇ .
  • This is the set value for the chute, that is to say that it should occupy an inclination a relative to the vertical axis O.
  • the chute 24 is inclined at an angle ⁇ relative to the axis O. This position is measured by the sensor 160 which determines the positions and rotations around the X 'axis.
  • the signals from the sensors 160 and 180 are sent to a regulator 174 analogous to the regulator 116 in FIG. 6. This regulator compares the signals emitted by the two sensors 160 and 180 and generates corrective signals as a function of this comparison.
  • the corrective signal generated by the regulator 174 is applied to a servo-hydraulic control valve 176 which determines the direction of circulation of the hydraulic fluid of the jack 74 as a function of the sign of the corrective signals.
  • the piston of the cylinder 74 is therefore moved to one side or the other depending on whether the corrective signals are positive or negative. This command lasts until the angle ⁇ is equal to the angel ⁇ and the corrective signals become zero.
  • the servohydraulic control 176 also determines the flow rate of the hydraulic fluid as a function of the amplitude of the corrective signals.
  • control member 166 Since in the embodiment shown in FIGS. 7 to 10, the control member 166 is separated from the system of suspension of the chute, it is not necessary to provide safety means to prevent the risk of destruction in the event of a breakdown in the hydraulic circuit or in the drive system of the control member.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Manufacture Of Iron (AREA)
  • Control Of Position Or Direction (AREA)
  • Heat Treatment Of Articles (AREA)
  • Specific Conveyance Elements (AREA)
  • Centrifugal Separators (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Joints Allowing Movement (AREA)
  • Chutes (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
EP82101942A 1981-05-18 1982-03-11 Dispositif de commande du mouvement d'une goulotte oscillante et installation de chargement d'un four à cuve équipé d'un tel dispositif Expired EP0065084B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82101942T ATE10949T1 (de) 1981-05-18 1982-03-11 Vorrichtung zum steuern der bewegung einer oszillierenden schurre und mit dieser vorrichtung versehene schachtofenbeschickungsanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU83370 1981-05-18
LU83370A LU83370A1 (fr) 1981-05-18 1981-05-18 Dispositif de commande du mouvement d'une goulotte oscillante et installation de chargement d'un four a cuve equipe d'un tel dispositif

Publications (2)

Publication Number Publication Date
EP0065084A1 EP0065084A1 (fr) 1982-11-24
EP0065084B1 true EP0065084B1 (fr) 1984-12-27

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EP82101942A Expired EP0065084B1 (fr) 1981-05-18 1982-03-11 Dispositif de commande du mouvement d'une goulotte oscillante et installation de chargement d'un four à cuve équipé d'un tel dispositif

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US (1) US4493600A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0065084B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS57192208A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR890002651B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE10949T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU545919B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR8202579A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1173240A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CS (1) CS262408B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3261667D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IN (1) IN157546B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
LU (1) LU83370A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SU (2) SU1106447A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
UA (2) UA7062A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ZA (1) ZA821571B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE10334417A1 (de) * 2003-06-20 2005-01-05 Z & J Technologies Gmbh Ofenkopf bzw. Gichtverschluß

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LU84303A1 (fr) * 1982-07-28 1984-03-22 Wurth Paul Sa Procede et dispositif de commande du mouvement d'une goulotte oscillante et application a une installation de chargement d'un four a cuve
LU87341A1 (fr) * 1988-09-22 1990-04-06 Wurth Paul Sa Installation de chargement d'un four a cuve
LU87938A1 (fr) * 1991-05-15 1992-12-15 Wurth Paul Sa Installation de chargement d'un four a cuve
DE19709329C2 (de) * 1997-03-07 2001-03-08 Sms Demag Ag Glockenloser Gichtverschluß für Schachtöfen, insbesondere Hochöfen
LU90433B1 (fr) * 1999-09-03 2001-03-05 Wurth Paul Sa Dispositif de r-partition de mati-res en vrac avec goulotte rotative - angle d'inclinaison variable
LU91683B1 (en) 2010-04-22 2011-10-24 Wurth Paul Sa Device for distributing bulk material with a distribution spout supported by a cardan suspension
JP4667528B1 (ja) * 2010-05-10 2011-04-13 英生 住野 靴用除湿保形具およびその製造方法
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

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DE2104116A1 (en) * 1971-01-29 1972-08-10 Demag Ag, 4100 Duisburg Blast-furnace burden distributor - allows dumping at any point across furnace
LU77547A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1977-06-16 1977-09-19
JPS5546347A (en) * 1978-09-27 1980-04-01 Ishikawajima Harima Heavy Ind Raw material distributor for vertical furnace
JPS5746545Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1978-12-23 1982-10-13
JPS5671783A (en) * 1979-11-13 1981-06-15 Ishikawajima Harima Heavy Ind Stock distributor for vertical furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10334417A1 (de) * 2003-06-20 2005-01-05 Z & J Technologies Gmbh Ofenkopf bzw. Gichtverschluß
US6948930B2 (en) 2003-06-20 2005-09-27 Z&J Technologies Gmbh Furnace head or furnace throat seal

Also Published As

Publication number Publication date
JPS57192208A (en) 1982-11-26
JPH0416523B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-03-24
BR8202579A (pt) 1983-04-19
CA1173240A (en) 1984-08-28
EP0065084A1 (fr) 1982-11-24
AU545919B2 (en) 1985-08-08
AU8164182A (en) 1982-11-25
KR890002651B1 (ko) 1989-07-22
ATE10949T1 (de) 1985-01-15
ZA821571B (en) 1983-01-26
SU1106447A3 (ru) 1984-07-30
CS216182A2 (en) 1988-08-16
US4493600A (en) 1985-01-15
SU1138038A3 (ru) 1985-01-30
UA7062A1 (uk) 1995-03-31
CS262408B2 (en) 1989-03-14
UA7060A1 (uk) 1995-03-31
DE3261667D1 (en) 1985-02-07
IN157546B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1986-04-19
LU83370A1 (fr) 1983-03-24

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